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/script-kiddie/002_script_kiddie/script-kiddie/node_modules/interactjs/dist/interact.js
@@ -0,0 +1,5977 @@
/**
* interact.js v1.2.6
*
* Copyright (c) 2012-2015 Taye Adeyemi <dev@taye.me>
* Open source under the MIT License.
* https://raw.github.com/taye/interact.js/master/LICENSE
*/
(function (realWindow) {
'use strict';
// return early if there's no window to work with (eg. Node.js)
if (!realWindow) { return; }
var // get wrapped window if using Shadow DOM polyfill
window = (function () {
// create a TextNode
var el = realWindow.document.createTextNode('');
// check if it's wrapped by a polyfill
if (el.ownerDocument !== realWindow.document
&& typeof realWindow.wrap === 'function'
&& realWindow.wrap(el) === el) {
// return wrapped window
return realWindow.wrap(realWindow);
}
// no Shadow DOM polyfil or native implementation
return realWindow;
}()),
document = window.document,
DocumentFragment = window.DocumentFragment || blank,
SVGElement = window.SVGElement || blank,
SVGSVGElement = window.SVGSVGElement || blank,
SVGElementInstance = window.SVGElementInstance || blank,
HTMLElement = window.HTMLElement || window.Element,
PointerEvent = (window.PointerEvent || window.MSPointerEvent),
pEventTypes,
hypot = Math.hypot || function (x, y) { return Math.sqrt(x * x + y * y); },
tmpXY = {}, // reduce object creation in getXY()
documents = [], // all documents being listened to
interactables = [], // all set interactables
interactions = [], // all interactions
dynamicDrop = false,
// {
// type: {
// selectors: ['selector', ...],
// contexts : [document, ...],
// listeners: [[listener, useCapture], ...]
// }
// }
delegatedEvents = {},
defaultOptions = {
base: {
accept : null,
actionChecker : null,
styleCursor : true,
preventDefault: 'auto',
origin : { x: 0, y: 0 },
deltaSource : 'page',
allowFrom : null,
ignoreFrom : null,
_context : document,
dropChecker : null
},
drag: {
enabled: false,
manualStart: true,
max: Infinity,
maxPerElement: 1,
snap: null,
restrict: null,
inertia: null,
autoScroll: null,
axis: 'xy'
},
drop: {
enabled: false,
accept: null,
overlap: 'pointer'
},
resize: {
enabled: false,
manualStart: false,
max: Infinity,
maxPerElement: 1,
snap: null,
restrict: null,
inertia: null,
autoScroll: null,
square: false,
preserveAspectRatio: false,
axis: 'xy',
// use default margin
margin: NaN,
// object with props left, right, top, bottom which are
// true/false values to resize when the pointer is over that edge,
// CSS selectors to match the handles for each direction
// or the Elements for each handle
edges: null,
// a value of 'none' will limit the resize rect to a minimum of 0x0
// 'negate' will alow the rect to have negative width/height
// 'reposition' will keep the width/height positive by swapping
// the top and bottom edges and/or swapping the left and right edges
invert: 'none'
},
gesture: {
manualStart: false,
enabled: false,
max: Infinity,
maxPerElement: 1,
restrict: null
},
perAction: {
manualStart: false,
max: Infinity,
maxPerElement: 1,
snap: {
enabled : false,
endOnly : false,
range : Infinity,
targets : null,
offsets : null,
relativePoints: null
},
restrict: {
enabled: false,
endOnly: false
},
autoScroll: {
enabled : false,
container : null, // the item that is scrolled (Window or HTMLElement)
margin : 60,
speed : 300 // the scroll speed in pixels per second
},
inertia: {
enabled : false,
resistance : 10, // the lambda in exponential decay
minSpeed : 100, // target speed must be above this for inertia to start
endSpeed : 10, // the speed at which inertia is slow enough to stop
allowResume : true, // allow resuming an action in inertia phase
zeroResumeDelta : true, // if an action is resumed after launch, set dx/dy to 0
smoothEndDuration: 300 // animate to snap/restrict endOnly if there's no inertia
}
},
_holdDuration: 600
},
// Things related to autoScroll
autoScroll = {
interaction: null,
i: null, // the handle returned by window.setInterval
x: 0, y: 0, // Direction each pulse is to scroll in
// scroll the window by the values in scroll.x/y
scroll: function () {
var options = autoScroll.interaction.target.options[autoScroll.interaction.prepared.name].autoScroll,
container = options.container || getWindow(autoScroll.interaction.element),
now = new Date().getTime(),
// change in time in seconds
dtx = (now - autoScroll.prevTimeX) / 1000,
dty = (now - autoScroll.prevTimeY) / 1000,
vx, vy, sx, sy;
// displacement
if (options.velocity) {
vx = options.velocity.x;
vy = options.velocity.y;
}
else {
vx = vy = options.speed
}
sx = vx * dtx;
sy = vy * dty;
if (sx >= 1 || sy >= 1) {
if (isWindow(container)) {
container.scrollBy(autoScroll.x * sx, autoScroll.y * sy);
}
else if (container) {
container.scrollLeft += autoScroll.x * sx;
container.scrollTop += autoScroll.y * sy;
}
if (sx >=1) autoScroll.prevTimeX = now;
if (sy >= 1) autoScroll.prevTimeY = now;
}
if (autoScroll.isScrolling) {
cancelFrame(autoScroll.i);
autoScroll.i = reqFrame(autoScroll.scroll);
}
},
isScrolling: false,
prevTimeX: 0,
prevTimeY: 0,
start: function (interaction) {
autoScroll.isScrolling = true;
cancelFrame(autoScroll.i);
autoScroll.interaction = interaction;
autoScroll.prevTimeX = new Date().getTime();
autoScroll.prevTimeY = new Date().getTime();
autoScroll.i = reqFrame(autoScroll.scroll);
},
stop: function () {
autoScroll.isScrolling = false;
cancelFrame(autoScroll.i);
}
},
// Does the browser support touch input?
supportsTouch = (('ontouchstart' in window) || window.DocumentTouch && document instanceof window.DocumentTouch),
// Does the browser support PointerEvents
// Avoid PointerEvent bugs introduced in Chrome 55
supportsPointerEvent = PointerEvent && !/Chrome/.test(navigator.userAgent),
// Less Precision with touch input
margin = supportsTouch || supportsPointerEvent? 20: 10,
pointerMoveTolerance = 1,
// for ignoring browser's simulated mouse events
prevTouchTime = 0,
// Allow this many interactions to happen simultaneously
maxInteractions = Infinity,
// Check if is IE9 or older
actionCursors = (document.all && !window.atob) ? {
drag : 'move',
resizex : 'e-resize',
resizey : 's-resize',
resizexy: 'se-resize',
resizetop : 'n-resize',
resizeleft : 'w-resize',
resizebottom : 's-resize',
resizeright : 'e-resize',
resizetopleft : 'se-resize',
resizebottomright: 'se-resize',
resizetopright : 'ne-resize',
resizebottomleft : 'ne-resize',
gesture : ''
} : {
drag : 'move',
resizex : 'ew-resize',
resizey : 'ns-resize',
resizexy: 'nwse-resize',
resizetop : 'ns-resize',
resizeleft : 'ew-resize',
resizebottom : 'ns-resize',
resizeright : 'ew-resize',
resizetopleft : 'nwse-resize',
resizebottomright: 'nwse-resize',
resizetopright : 'nesw-resize',
resizebottomleft : 'nesw-resize',
gesture : ''
},
actionIsEnabled = {
drag : true,
resize : true,
gesture: true
},
// because Webkit and Opera still use 'mousewheel' event type
wheelEvent = 'onmousewheel' in document? 'mousewheel': 'wheel',
eventTypes = [
'dragstart',
'dragmove',
'draginertiastart',
'dragend',
'dragenter',
'dragleave',
'dropactivate',
'dropdeactivate',
'dropmove',
'drop',
'resizestart',
'resizemove',
'resizeinertiastart',
'resizeend',
'gesturestart',
'gesturemove',
'gestureinertiastart',
'gestureend',
'down',
'move',
'up',
'cancel',
'tap',
'doubletap',
'hold'
],
globalEvents = {},
// Opera Mobile must be handled differently
isOperaMobile = navigator.appName == 'Opera' &&
supportsTouch &&
navigator.userAgent.match('Presto'),
// scrolling doesn't change the result of getClientRects on iOS 7
isIOS7 = (/iP(hone|od|ad)/.test(navigator.platform)
&& /OS 7[^\d]/.test(navigator.appVersion)),
// prefix matchesSelector
prefixedMatchesSelector = 'matches' in Element.prototype?
'matches': 'webkitMatchesSelector' in Element.prototype?
'webkitMatchesSelector': 'mozMatchesSelector' in Element.prototype?
'mozMatchesSelector': 'oMatchesSelector' in Element.prototype?
'oMatchesSelector': 'msMatchesSelector',
// will be polyfill function if browser is IE8
ie8MatchesSelector,
// native requestAnimationFrame or polyfill
reqFrame = realWindow.requestAnimationFrame,
cancelFrame = realWindow.cancelAnimationFrame,
// Events wrapper
events = (function () {
var useAttachEvent = ('attachEvent' in window) && !('addEventListener' in window),
addEvent = useAttachEvent? 'attachEvent': 'addEventListener',
removeEvent = useAttachEvent? 'detachEvent': 'removeEventListener',
on = useAttachEvent? 'on': '',
elements = [],
targets = [],
attachedListeners = [];
function add (element, type, listener, useCapture) {
var elementIndex = indexOf(elements, element),
target = targets[elementIndex];
if (!target) {
target = {
events: {},
typeCount: 0
};
elementIndex = elements.push(element) - 1;
targets.push(target);
attachedListeners.push((useAttachEvent ? {
supplied: [],
wrapped : [],
useCount: []
} : null));
}
if (!target.events[type]) {
target.events[type] = [];
target.typeCount++;
}
if (!contains(target.events[type], listener)) {
var ret;
if (useAttachEvent) {
var listeners = attachedListeners[elementIndex],
listenerIndex = indexOf(listeners.supplied, listener);
var wrapped = listeners.wrapped[listenerIndex] || function (event) {
if (!event.immediatePropagationStopped) {
event.target = event.srcElement;
event.currentTarget = element;
event.preventDefault = event.preventDefault || preventDef;
event.stopPropagation = event.stopPropagation || stopProp;
event.stopImmediatePropagation = event.stopImmediatePropagation || stopImmProp;
if (/mouse|click/.test(event.type)) {
event.pageX = event.clientX + getWindow(element).document.documentElement.scrollLeft;
event.pageY = event.clientY + getWindow(element).document.documentElement.scrollTop;
}
listener(event);
}
};
ret = element[addEvent](on + type, wrapped, Boolean(useCapture));
if (listenerIndex === -1) {
listeners.supplied.push(listener);
listeners.wrapped.push(wrapped);
listeners.useCount.push(1);
}
else {
listeners.useCount[listenerIndex]++;
}
}
else {
ret = element[addEvent](type, listener, useCapture || false);
}
target.events[type].push(listener);
return ret;
}
}
function remove (element, type, listener, useCapture) {
var i,
elementIndex = indexOf(elements, element),
target = targets[elementIndex],
listeners,
listenerIndex,
wrapped = listener;
if (!target || !target.events) {
return;
}
if (useAttachEvent) {
listeners = attachedListeners[elementIndex];
listenerIndex = indexOf(listeners.supplied, listener);
wrapped = listeners.wrapped[listenerIndex];
}
if (type === 'all') {
for (type in target.events) {
if (target.events.hasOwnProperty(type)) {
remove(element, type, 'all');
}
}
return;
}
if (target.events[type]) {
var len = target.events[type].length;
if (listener === 'all') {
for (i = 0; i < len; i++) {
remove(element, type, target.events[type][i], Boolean(useCapture));
}
return;
} else {
for (i = 0; i < len; i++) {
if (target.events[type][i] === listener) {
element[removeEvent](on + type, wrapped, useCapture || false);
target.events[type].splice(i, 1);
if (useAttachEvent && listeners) {
listeners.useCount[listenerIndex]--;
if (listeners.useCount[listenerIndex] === 0) {
listeners.supplied.splice(listenerIndex, 1);
listeners.wrapped.splice(listenerIndex, 1);
listeners.useCount.splice(listenerIndex, 1);
}
}
break;
}
}
}
if (target.events[type] && target.events[type].length === 0) {
target.events[type] = null;
target.typeCount--;
}
}
if (!target.typeCount) {
targets.splice(elementIndex, 1);
elements.splice(elementIndex, 1);
attachedListeners.splice(elementIndex, 1);
}
}
function preventDef () {
this.returnValue = false;
}
function stopProp () {
this.cancelBubble = true;
}
function stopImmProp () {
this.cancelBubble = true;
this.immediatePropagationStopped = true;
}
return {
add: add,
remove: remove,
useAttachEvent: useAttachEvent,
_elements: elements,
_targets: targets,
_attachedListeners: attachedListeners
};
}());
function blank () {}
function isElement (o) {
if (!o || (typeof o !== 'object')) { return false; }
var _window = getWindow(o) || window;
return (/object|function/.test(typeof _window.Element)
? o instanceof _window.Element //DOM2
: o.nodeType === 1 && typeof o.nodeName === "string");
}
function isWindow (thing) { return thing === window || !!(thing && thing.Window) && (thing instanceof thing.Window); }
function isDocFrag (thing) { return !!thing && thing instanceof DocumentFragment; }
function isArray (thing) {
return isObject(thing)
&& (typeof thing.length !== undefined)
&& isFunction(thing.splice);
}
function isObject (thing) { return !!thing && (typeof thing === 'object'); }
function isFunction (thing) { return typeof thing === 'function'; }
function isNumber (thing) { return typeof thing === 'number' ; }
function isBool (thing) { return typeof thing === 'boolean' ; }
function isString (thing) { return typeof thing === 'string' ; }
function trySelector (value) {
if (!isString(value)) { return false; }
// an exception will be raised if it is invalid
document.querySelector(value);
return true;
}
function extend (dest, source) {
for (var prop in source) {
dest[prop] = source[prop];
}
return dest;
}
var prefixedPropREs = {
webkit: /(Movement[XY]|Radius[XY]|RotationAngle|Force)$/
};
function pointerExtend (dest, source) {
for (var prop in source) {
var deprecated = false;
// skip deprecated prefixed properties
for (var vendor in prefixedPropREs) {
if (prop.indexOf(vendor) === 0 && prefixedPropREs[vendor].test(prop)) {
deprecated = true;
break;
}
}
if (!deprecated) {
dest[prop] = source[prop];
}
}
return dest;
}
function copyCoords (dest, src) {
dest.page = dest.page || {};
dest.page.x = src.page.x;
dest.page.y = src.page.y;
dest.client = dest.client || {};
dest.client.x = src.client.x;
dest.client.y = src.client.y;
dest.timeStamp = src.timeStamp;
}
function setEventXY (targetObj, pointers, interaction) {
var pointer = (pointers.length > 1
? pointerAverage(pointers)
: pointers[0]);
getPageXY(pointer, tmpXY, interaction);
targetObj.page.x = tmpXY.x;
targetObj.page.y = tmpXY.y;
getClientXY(pointer, tmpXY, interaction);
targetObj.client.x = tmpXY.x;
targetObj.client.y = tmpXY.y;
targetObj.timeStamp = new Date().getTime();
}
function setEventDeltas (targetObj, prev, cur) {
targetObj.page.x = cur.page.x - prev.page.x;
targetObj.page.y = cur.page.y - prev.page.y;
targetObj.client.x = cur.client.x - prev.client.x;
targetObj.client.y = cur.client.y - prev.client.y;
targetObj.timeStamp = new Date().getTime() - prev.timeStamp;
// set pointer velocity
var dt = Math.max(targetObj.timeStamp / 1000, 0.001);
targetObj.page.speed = hypot(targetObj.page.x, targetObj.page.y) / dt;
targetObj.page.vx = targetObj.page.x / dt;
targetObj.page.vy = targetObj.page.y / dt;
targetObj.client.speed = hypot(targetObj.client.x, targetObj.page.y) / dt;
targetObj.client.vx = targetObj.client.x / dt;
targetObj.client.vy = targetObj.client.y / dt;
}
function isNativePointer (pointer) {
return (pointer instanceof window.Event
|| (supportsTouch && window.Touch && pointer instanceof window.Touch));
}
// Get specified X/Y coords for mouse or event.touches[0]
function getXY (type, pointer, xy) {
xy = xy || {};
type = type || 'page';
xy.x = pointer[type + 'X'];
xy.y = pointer[type + 'Y'];
return xy;
}
function getPageXY (pointer, page) {
page = page || {};
// Opera Mobile handles the viewport and scrolling oddly
if (isOperaMobile && isNativePointer(pointer)) {
getXY('screen', pointer, page);
page.x += window.scrollX;
page.y += window.scrollY;
}
else {
getXY('page', pointer, page);
}
return page;
}
function getClientXY (pointer, client) {
client = client || {};
if (isOperaMobile && isNativePointer(pointer)) {
// Opera Mobile handles the viewport and scrolling oddly
getXY('screen', pointer, client);
}
else {
getXY('client', pointer, client);
}
return client;
}
function getScrollXY (win) {
win = win || window;
return {
x: win.scrollX || win.document.documentElement.scrollLeft,
y: win.scrollY || win.document.documentElement.scrollTop
};
}
function getPointerId (pointer) {
return isNumber(pointer.pointerId)? pointer.pointerId : pointer.identifier;
}
function getActualElement (element) {
return (element instanceof SVGElementInstance
? element.correspondingUseElement
: element);
}
function getWindow (node) {
if (isWindow(node)) {
return node;
}
var rootNode = (node.ownerDocument || node);
return rootNode.defaultView || rootNode.parentWindow || window;
}
function getElementClientRect (element) {
var clientRect = (element instanceof SVGElement
? element.getBoundingClientRect()
: element.getClientRects()[0]);
return clientRect && {
left : clientRect.left,
right : clientRect.right,
top : clientRect.top,
bottom: clientRect.bottom,
width : clientRect.width || clientRect.right - clientRect.left,
height: clientRect.height || clientRect.bottom - clientRect.top
};
}
function getElementRect (element) {
var clientRect = getElementClientRect(element);
if (!isIOS7 && clientRect) {
var scroll = getScrollXY(getWindow(element));
clientRect.left += scroll.x;
clientRect.right += scroll.x;
clientRect.top += scroll.y;
clientRect.bottom += scroll.y;
}
return clientRect;
}
function getTouchPair (event) {
var touches = [];
// array of touches is supplied
if (isArray(event)) {
touches[0] = event[0];
touches[1] = event[1];
}
// an event
else {
if (event.type === 'touchend') {
if (event.touches.length === 1) {
touches[0] = event.touches[0];
touches[1] = event.changedTouches[0];
}
else if (event.touches.length === 0) {
touches[0] = event.changedTouches[0];
touches[1] = event.changedTouches[1];
}
}
else {
touches[0] = event.touches[0];
touches[1] = event.touches[1];
}
}
return touches;
}
function pointerAverage (pointers) {
var average = {
pageX : 0,
pageY : 0,
clientX: 0,
clientY: 0,
screenX: 0,
screenY: 0
};
var prop;
for (var i = 0; i < pointers.length; i++) {
for (prop in average) {
average[prop] += pointers[i][prop];
}
}
for (prop in average) {
average[prop] /= pointers.length;
}
return average;
}
function touchBBox (event) {
if (!event.length && !(event.touches && event.touches.length > 1)) {
return;
}
var touches = getTouchPair(event),
minX = Math.min(touches[0].pageX, touches[1].pageX),
minY = Math.min(touches[0].pageY, touches[1].pageY),
maxX = Math.max(touches[0].pageX, touches[1].pageX),
maxY = Math.max(touches[0].pageY, touches[1].pageY);
return {
x: minX,
y: minY,
left: minX,
top: minY,
width: maxX - minX,
height: maxY - minY
};
}
function touchDistance (event, deltaSource) {
deltaSource = deltaSource || defaultOptions.deltaSource;
var sourceX = deltaSource + 'X',
sourceY = deltaSource + 'Y',
touches = getTouchPair(event);
var dx = touches[0][sourceX] - touches[1][sourceX],
dy = touches[0][sourceY] - touches[1][sourceY];
return hypot(dx, dy);
}
function touchAngle (event, prevAngle, deltaSource) {
deltaSource = deltaSource || defaultOptions.deltaSource;
var sourceX = deltaSource + 'X',
sourceY = deltaSource + 'Y',
touches = getTouchPair(event),
dx = touches[0][sourceX] - touches[1][sourceX],
dy = touches[0][sourceY] - touches[1][sourceY],
angle = 180 * Math.atan(dy / dx) / Math.PI;
if (isNumber(prevAngle)) {
var dr = angle - prevAngle,
drClamped = dr % 360;
if (drClamped > 315) {
angle -= 360 + (angle / 360)|0 * 360;
}
else if (drClamped > 135) {
angle -= 180 + (angle / 360)|0 * 360;
}
else if (drClamped < -315) {
angle += 360 + (angle / 360)|0 * 360;
}
else if (drClamped < -135) {
angle += 180 + (angle / 360)|0 * 360;
}
}
return angle;
}
function getOriginXY (interactable, element) {
var origin = interactable
? interactable.options.origin
: defaultOptions.origin;
if (origin === 'parent') {
origin = parentElement(element);
}
else if (origin === 'self') {
origin = interactable.getRect(element);
}
else if (trySelector(origin)) {
origin = closest(element, origin) || { x: 0, y: 0 };
}
if (isFunction(origin)) {
origin = origin(interactable && element);
}
if (isElement(origin)) {
origin = getElementRect(origin);
}
origin.x = ('x' in origin)? origin.x : origin.left;
origin.y = ('y' in origin)? origin.y : origin.top;
return origin;
}
// http://stackoverflow.com/a/5634528/2280888
function _getQBezierValue(t, p1, p2, p3) {
var iT = 1 - t;
return iT * iT * p1 + 2 * iT * t * p2 + t * t * p3;
}
function getQuadraticCurvePoint(startX, startY, cpX, cpY, endX, endY, position) {
return {
x: _getQBezierValue(position, startX, cpX, endX),
y: _getQBezierValue(position, startY, cpY, endY)
};
}
// http://gizma.com/easing/
function easeOutQuad (t, b, c, d) {
t /= d;
return -c * t*(t-2) + b;
}
function nodeContains (parent, child) {
while (child) {
if (child === parent) {
return true;
}
child = child.parentNode;
}
return false;
}
function closest (child, selector) {
var parent = parentElement(child);
while (isElement(parent)) {
if (matchesSelector(parent, selector)) { return parent; }
parent = parentElement(parent);
}
return null;
}
function parentElement (node) {
var parent = node.parentNode;
if (isDocFrag(parent)) {
// skip past #shado-root fragments
while ((parent = parent.host) && isDocFrag(parent)) {}
return parent;
}
return parent;
}
function inContext (interactable, element) {
return interactable._context === element.ownerDocument
|| nodeContains(interactable._context, element);
}
function testIgnore (interactable, interactableElement, element) {
var ignoreFrom = interactable.options.ignoreFrom;
if (!ignoreFrom || !isElement(element)) { return false; }
if (isString(ignoreFrom)) {
return matchesUpTo(element, ignoreFrom, interactableElement);
}
else if (isElement(ignoreFrom)) {
return nodeContains(ignoreFrom, element);
}
return false;
}
function testAllow (interactable, interactableElement, element) {
var allowFrom = interactable.options.allowFrom;
if (!allowFrom) { return true; }
if (!isElement(element)) { return false; }
if (isString(allowFrom)) {
return matchesUpTo(element, allowFrom, interactableElement);
}
else if (isElement(allowFrom)) {
return nodeContains(allowFrom, element);
}
return false;
}
function checkAxis (axis, interactable) {
if (!interactable) { return false; }
var thisAxis = interactable.options.drag.axis;
return (axis === 'xy' || thisAxis === 'xy' || thisAxis === axis);
}
function checkSnap (interactable, action) {
var options = interactable.options;
if (/^resize/.test(action)) {
action = 'resize';
}
return options[action].snap && options[action].snap.enabled;
}
function checkRestrict (interactable, action) {
var options = interactable.options;
if (/^resize/.test(action)) {
action = 'resize';
}
return options[action].restrict && options[action].restrict.enabled;
}
function checkAutoScroll (interactable, action) {
var options = interactable.options;
if (/^resize/.test(action)) {
action = 'resize';
}
return options[action].autoScroll && options[action].autoScroll.enabled;
}
function withinInteractionLimit (interactable, element, action) {
var options = interactable.options,
maxActions = options[action.name].max,
maxPerElement = options[action.name].maxPerElement,
activeInteractions = 0,
targetCount = 0,
targetElementCount = 0;
for (var i = 0, len = interactions.length; i < len; i++) {
var interaction = interactions[i],
otherAction = interaction.prepared.name,
active = interaction.interacting();
if (!active) { continue; }
activeInteractions++;
if (activeInteractions >= maxInteractions) {
return false;
}
if (interaction.target !== interactable) { continue; }
targetCount += (otherAction === action.name)|0;
if (targetCount >= maxActions) {
return false;
}
if (interaction.element === element) {
targetElementCount++;
if (otherAction !== action.name || targetElementCount >= maxPerElement) {
return false;
}
}
}
return maxInteractions > 0;
}
// Test for the element that's "above" all other qualifiers
function indexOfDeepestElement (elements) {
var dropzone,
deepestZone = elements[0],
index = deepestZone? 0: -1,
parent,
deepestZoneParents = [],
dropzoneParents = [],
child,
i,
n;
for (i = 1; i < elements.length; i++) {
dropzone = elements[i];
// an element might belong to multiple selector dropzones
if (!dropzone || dropzone === deepestZone) {
continue;
}
if (!deepestZone) {
deepestZone = dropzone;
index = i;
continue;
}
// check if the deepest or current are document.documentElement or document.rootElement
// - if the current dropzone is, do nothing and continue
if (dropzone.parentNode === dropzone.ownerDocument) {
continue;
}
// - if deepest is, update with the current dropzone and continue to next
else if (deepestZone.parentNode === dropzone.ownerDocument) {
deepestZone = dropzone;
index = i;
continue;
}
if (!deepestZoneParents.length) {
parent = deepestZone;
while (parent.parentNode && parent.parentNode !== parent.ownerDocument) {
deepestZoneParents.unshift(parent);
parent = parent.parentNode;
}
}
// if this element is an svg element and the current deepest is
// an HTMLElement
if (deepestZone instanceof HTMLElement
&& dropzone instanceof SVGElement
&& !(dropzone instanceof SVGSVGElement)) {
if (dropzone === deepestZone.parentNode) {
continue;
}
parent = dropzone.ownerSVGElement;
}
else {
parent = dropzone;
}
dropzoneParents = [];
while (parent.parentNode !== parent.ownerDocument) {
dropzoneParents.unshift(parent);
parent = parent.parentNode;
}
n = 0;
// get (position of last common ancestor) + 1
while (dropzoneParents[n] && dropzoneParents[n] === deepestZoneParents[n]) {
n++;
}
var parents = [
dropzoneParents[n - 1],
dropzoneParents[n],
deepestZoneParents[n]
];
child = parents[0].lastChild;
while (child) {
if (child === parents[1]) {
deepestZone = dropzone;
index = i;
deepestZoneParents = [];
break;
}
else if (child === parents[2]) {
break;
}
child = child.previousSibling;
}
}
return index;
}
function Interaction () {
this.target = null; // current interactable being interacted with
this.element = null; // the target element of the interactable
this.dropTarget = null; // the dropzone a drag target might be dropped into
this.dropElement = null; // the element at the time of checking
this.prevDropTarget = null; // the dropzone that was recently dragged away from
this.prevDropElement = null; // the element at the time of checking
this.prepared = { // action that's ready to be fired on next move event
name : null,
axis : null,
edges: null
};
this.matches = []; // all selectors that are matched by target element
this.matchElements = []; // corresponding elements
this.inertiaStatus = {
active : false,
smoothEnd : false,
ending : false,
startEvent: null,
upCoords: {},
xe: 0, ye: 0,
sx: 0, sy: 0,
t0: 0,
vx0: 0, vys: 0,
duration: 0,
resumeDx: 0,
resumeDy: 0,
lambda_v0: 0,
one_ve_v0: 0,
i : null
};
if (isFunction(Function.prototype.bind)) {
this.boundInertiaFrame = this.inertiaFrame.bind(this);
this.boundSmoothEndFrame = this.smoothEndFrame.bind(this);
}
else {
var that = this;
this.boundInertiaFrame = function () { return that.inertiaFrame(); };
this.boundSmoothEndFrame = function () { return that.smoothEndFrame(); };
}
this.activeDrops = {
dropzones: [], // the dropzones that are mentioned below
elements : [], // elements of dropzones that accept the target draggable
rects : [] // the rects of the elements mentioned above
};
// keep track of added pointers
this.pointers = [];
this.pointerIds = [];
this.downTargets = [];
this.downTimes = [];
this.holdTimers = [];
// Previous native pointer move event coordinates
this.prevCoords = {
page : { x: 0, y: 0 },
client : { x: 0, y: 0 },
timeStamp: 0
};
// current native pointer move event coordinates
this.curCoords = {
page : { x: 0, y: 0 },
client : { x: 0, y: 0 },
timeStamp: 0
};
// Starting InteractEvent pointer coordinates
this.startCoords = {
page : { x: 0, y: 0 },
client : { x: 0, y: 0 },
timeStamp: 0
};
// Change in coordinates and time of the pointer
this.pointerDelta = {
page : { x: 0, y: 0, vx: 0, vy: 0, speed: 0 },
client : { x: 0, y: 0, vx: 0, vy: 0, speed: 0 },
timeStamp: 0
};
this.downEvent = null; // pointerdown/mousedown/touchstart event
this.downPointer = {};
this._eventTarget = null;
this._curEventTarget = null;
this.prevEvent = null; // previous action event
this.tapTime = 0; // time of the most recent tap event
this.prevTap = null;
this.startOffset = { left: 0, right: 0, top: 0, bottom: 0 };
this.restrictOffset = { left: 0, right: 0, top: 0, bottom: 0 };
this.snapOffsets = [];
this.gesture = {
start: { x: 0, y: 0 },
startDistance: 0, // distance between two touches of touchStart
prevDistance : 0,
distance : 0,
scale: 1, // gesture.distance / gesture.startDistance
startAngle: 0, // angle of line joining two touches
prevAngle : 0 // angle of the previous gesture event
};
this.snapStatus = {
x : 0, y : 0,
dx : 0, dy : 0,
realX : 0, realY : 0,
snappedX: 0, snappedY: 0,
targets : [],
locked : false,
changed : false
};
this.restrictStatus = {
dx : 0, dy : 0,
restrictedX: 0, restrictedY: 0,
snap : null,
restricted : false,
changed : false
};
this.restrictStatus.snap = this.snapStatus;
this.pointerIsDown = false;
this.pointerWasMoved = false;
this.gesturing = false;
this.dragging = false;
this.resizing = false;
this.resizeAxes = 'xy';
this.mouse = false;
interactions.push(this);
}
Interaction.prototype = {
getPageXY : function (pointer, xy) { return getPageXY(pointer, xy, this); },
getClientXY: function (pointer, xy) { return getClientXY(pointer, xy, this); },
setEventXY : function (target, ptr) { return setEventXY(target, ptr, this); },
pointerOver: function (pointer, event, eventTarget) {
if (this.prepared.name || !this.mouse) { return; }
var curMatches = [],
curMatchElements = [],
prevTargetElement = this.element;
this.addPointer(pointer);
if (this.target
&& (testIgnore(this.target, this.element, eventTarget)
|| !testAllow(this.target, this.element, eventTarget))) {
// if the eventTarget should be ignored or shouldn't be allowed
// clear the previous target
this.target = null;
this.element = null;
this.matches = [];
this.matchElements = [];
}
var elementInteractable = interactables.get(eventTarget),
elementAction = (elementInteractable
&& !testIgnore(elementInteractable, eventTarget, eventTarget)
&& testAllow(elementInteractable, eventTarget, eventTarget)
&& validateAction(
elementInteractable.getAction(pointer, event, this, eventTarget),
elementInteractable));
if (elementAction && !withinInteractionLimit(elementInteractable, eventTarget, elementAction)) {
elementAction = null;
}
function pushCurMatches (interactable, selector) {
if (interactable
&& inContext(interactable, eventTarget)
&& !testIgnore(interactable, eventTarget, eventTarget)
&& testAllow(interactable, eventTarget, eventTarget)
&& matchesSelector(eventTarget, selector)) {
curMatches.push(interactable);
curMatchElements.push(eventTarget);
}
}
if (elementAction) {
this.target = elementInteractable;
this.element = eventTarget;
this.matches = [];
this.matchElements = [];
}
else {
interactables.forEachSelector(pushCurMatches);
if (this.validateSelector(pointer, event, curMatches, curMatchElements)) {
this.matches = curMatches;
this.matchElements = curMatchElements;
this.pointerHover(pointer, event, this.matches, this.matchElements);
events.add(eventTarget,
supportsPointerEvent? pEventTypes.move : 'mousemove',
listeners.pointerHover);
}
else if (this.target) {
if (nodeContains(prevTargetElement, eventTarget)) {
this.pointerHover(pointer, event, this.matches, this.matchElements);
events.add(this.element,
supportsPointerEvent? pEventTypes.move : 'mousemove',
listeners.pointerHover);
}
else {
this.target = null;
this.element = null;
this.matches = [];
this.matchElements = [];
}
}
}
},
// Check what action would be performed on pointerMove target if a mouse
// button were pressed and change the cursor accordingly
pointerHover: function (pointer, event, eventTarget, curEventTarget, matches, matchElements) {
var target = this.target;
if (!this.prepared.name && this.mouse) {
var action;
// update pointer coords for defaultActionChecker to use
this.setEventXY(this.curCoords, [pointer]);
if (matches) {
action = this.validateSelector(pointer, event, matches, matchElements);
}
else if (target) {
action = validateAction(target.getAction(this.pointers[0], event, this, this.element), this.target);
}
if (target && target.options.styleCursor) {
if (action) {
target._doc.documentElement.style.cursor = getActionCursor(action);
}
else {
target._doc.documentElement.style.cursor = '';
}
}
}
else if (this.prepared.name) {
this.checkAndPreventDefault(event, target, this.element);
}
},
pointerOut: function (pointer, event, eventTarget) {
if (this.prepared.name) { return; }
// Remove temporary event listeners for selector Interactables
if (!interactables.get(eventTarget)) {
events.remove(eventTarget,
supportsPointerEvent? pEventTypes.move : 'mousemove',
listeners.pointerHover);
}
if (this.target && this.target.options.styleCursor && !this.interacting()) {
this.target._doc.documentElement.style.cursor = '';
}
},
selectorDown: function (pointer, event, eventTarget, curEventTarget) {
var that = this,
// copy event to be used in timeout for IE8
eventCopy = events.useAttachEvent? extend({}, event) : event,
element = eventTarget,
pointerIndex = this.addPointer(pointer),
action;
this.holdTimers[pointerIndex] = setTimeout(function () {
that.pointerHold(events.useAttachEvent? eventCopy : pointer, eventCopy, eventTarget, curEventTarget);
}, defaultOptions._holdDuration);
this.pointerIsDown = true;
// Check if the down event hits the current inertia target
if (this.inertiaStatus.active && this.target.selector) {
// climb up the DOM tree from the event target
while (isElement(element)) {
// if this element is the current inertia target element
if (element === this.element
// and the prospective action is the same as the ongoing one
&& validateAction(this.target.getAction(pointer, event, this, this.element), this.target).name === this.prepared.name) {
// stop inertia so that the next move will be a normal one
cancelFrame(this.inertiaStatus.i);
this.inertiaStatus.active = false;
this.collectEventTargets(pointer, event, eventTarget, 'down');
return;
}
element = parentElement(element);
}
}
// do nothing if interacting
if (this.interacting()) {
this.collectEventTargets(pointer, event, eventTarget, 'down');
return;
}
function pushMatches (interactable, selector, context) {
var elements = ie8MatchesSelector
? context.querySelectorAll(selector)
: undefined;
if (inContext(interactable, element)
&& !testIgnore(interactable, element, eventTarget)
&& testAllow(interactable, element, eventTarget)
&& matchesSelector(element, selector, elements)) {
that.matches.push(interactable);
that.matchElements.push(element);
}
}
// update pointer coords for defaultActionChecker to use
this.setEventXY(this.curCoords, [pointer]);
this.downEvent = event;
while (isElement(element) && !action) {
this.matches = [];
this.matchElements = [];
interactables.forEachSelector(pushMatches);
action = this.validateSelector(pointer, event, this.matches, this.matchElements);
element = parentElement(element);
}
if (action) {
this.prepared.name = action.name;
this.prepared.axis = action.axis;
this.prepared.edges = action.edges;
this.collectEventTargets(pointer, event, eventTarget, 'down');
return this.pointerDown(pointer, event, eventTarget, curEventTarget, action);
}
else {
// do these now since pointerDown isn't being called from here
this.downTimes[pointerIndex] = new Date().getTime();
this.downTargets[pointerIndex] = eventTarget;
pointerExtend(this.downPointer, pointer);
copyCoords(this.prevCoords, this.curCoords);
this.pointerWasMoved = false;
}
this.collectEventTargets(pointer, event, eventTarget, 'down');
},
// Determine action to be performed on next pointerMove and add appropriate
// style and event Listeners
pointerDown: function (pointer, event, eventTarget, curEventTarget, forceAction) {
if (!forceAction && !this.inertiaStatus.active && this.pointerWasMoved && this.prepared.name) {
this.checkAndPreventDefault(event, this.target, this.element);
return;
}
this.pointerIsDown = true;
this.downEvent = event;
var pointerIndex = this.addPointer(pointer),
action;
// If it is the second touch of a multi-touch gesture, keep the
// target the same and get a new action if a target was set by the
// first touch
if (this.pointerIds.length > 1 && this.target._element === this.element) {
var newAction = validateAction(forceAction || this.target.getAction(pointer, event, this, this.element), this.target);
if (withinInteractionLimit(this.target, this.element, newAction)) {
action = newAction;
}
this.prepared.name = null;
}
// Otherwise, set the target if there is no action prepared
else if (!this.prepared.name) {
var interactable = interactables.get(curEventTarget);
if (interactable
&& !testIgnore(interactable, curEventTarget, eventTarget)
&& testAllow(interactable, curEventTarget, eventTarget)
&& (action = validateAction(forceAction || interactable.getAction(pointer, event, this, curEventTarget), interactable, eventTarget))
&& withinInteractionLimit(interactable, curEventTarget, action)) {
this.target = interactable;
this.element = curEventTarget;
}
}
var target = this.target,
options = target && target.options;
if (target && (forceAction || !this.prepared.name)) {
action = action || validateAction(forceAction || target.getAction(pointer, event, this, curEventTarget), target, this.element);
this.setEventXY(this.startCoords, this.pointers);
if (!action) { return; }
if (options.styleCursor) {
target._doc.documentElement.style.cursor = getActionCursor(action);
}
this.resizeAxes = action.name === 'resize'? action.axis : null;
if (action === 'gesture' && this.pointerIds.length < 2) {
action = null;
}
this.prepared.name = action.name;
this.prepared.axis = action.axis;
this.prepared.edges = action.edges;
this.snapStatus.snappedX = this.snapStatus.snappedY =
this.restrictStatus.restrictedX = this.restrictStatus.restrictedY = NaN;
this.downTimes[pointerIndex] = new Date().getTime();
this.downTargets[pointerIndex] = eventTarget;
pointerExtend(this.downPointer, pointer);
copyCoords(this.prevCoords, this.startCoords);
this.pointerWasMoved = false;
this.checkAndPreventDefault(event, target, this.element);
}
// if inertia is active try to resume action
else if (this.inertiaStatus.active
&& curEventTarget === this.element
&& validateAction(target.getAction(pointer, event, this, this.element), target).name === this.prepared.name) {
cancelFrame(this.inertiaStatus.i);
this.inertiaStatus.active = false;
this.checkAndPreventDefault(event, target, this.element);
}
},
setModifications: function (coords, preEnd) {
var target = this.target,
shouldMove = true,
shouldSnap = checkSnap(target, this.prepared.name) && (!target.options[this.prepared.name].snap.endOnly || preEnd),
shouldRestrict = checkRestrict(target, this.prepared.name) && (!target.options[this.prepared.name].restrict.endOnly || preEnd);
if (shouldSnap ) { this.setSnapping (coords); } else { this.snapStatus .locked = false; }
if (shouldRestrict) { this.setRestriction(coords); } else { this.restrictStatus.restricted = false; }
if (shouldSnap && this.snapStatus.locked && !this.snapStatus.changed) {
shouldMove = shouldRestrict && this.restrictStatus.restricted && this.restrictStatus.changed;
}
else if (shouldRestrict && this.restrictStatus.restricted && !this.restrictStatus.changed) {
shouldMove = false;
}
return shouldMove;
},
setStartOffsets: function (action, interactable, element) {
var rect = interactable.getRect(element),
origin = getOriginXY(interactable, element),
snap = interactable.options[this.prepared.name].snap,
restrict = interactable.options[this.prepared.name].restrict,
width, height;
if (rect) {
this.startOffset.left = this.startCoords.page.x - rect.left;
this.startOffset.top = this.startCoords.page.y - rect.top;
this.startOffset.right = rect.right - this.startCoords.page.x;
this.startOffset.bottom = rect.bottom - this.startCoords.page.y;
if ('width' in rect) { width = rect.width; }
else { width = rect.right - rect.left; }
if ('height' in rect) { height = rect.height; }
else { height = rect.bottom - rect.top; }
}
else {
this.startOffset.left = this.startOffset.top = this.startOffset.right = this.startOffset.bottom = 0;
}
this.snapOffsets.splice(0);
var snapOffset = snap && snap.offset === 'startCoords'
? {
x: this.startCoords.page.x - origin.x,
y: this.startCoords.page.y - origin.y
}
: snap && snap.offset || { x: 0, y: 0 };
if (rect && snap && snap.relativePoints && snap.relativePoints.length) {
for (var i = 0; i < snap.relativePoints.length; i++) {
this.snapOffsets.push({
x: this.startOffset.left - (width * snap.relativePoints[i].x) + snapOffset.x,
y: this.startOffset.top - (height * snap.relativePoints[i].y) + snapOffset.y
});
}
}
else {
this.snapOffsets.push(snapOffset);
}
if (rect && restrict.elementRect) {
this.restrictOffset.left = this.startOffset.left - (width * restrict.elementRect.left);
this.restrictOffset.top = this.startOffset.top - (height * restrict.elementRect.top);
this.restrictOffset.right = this.startOffset.right - (width * (1 - restrict.elementRect.right));
this.restrictOffset.bottom = this.startOffset.bottom - (height * (1 - restrict.elementRect.bottom));
}
else {
this.restrictOffset.left = this.restrictOffset.top = this.restrictOffset.right = this.restrictOffset.bottom = 0;
}
},
/*\
* Interaction.start
[ method ]
*
* Start an action with the given Interactable and Element as tartgets. The
* action must be enabled for the target Interactable and an appropriate number
* of pointers must be held down – 1 for drag/resize, 2 for gesture.
*
* Use it with `interactable.<action>able({ manualStart: false })` to always
* [start actions manually](https://github.com/taye/interact.js/issues/114)
*
- action (object) The action to be performed - drag, resize, etc.
- interactable (Interactable) The Interactable to target
- element (Element) The DOM Element to target
= (object) interact
**
| interact(target)
| .draggable({
| // disable the default drag start by down->move
| manualStart: true
| })
| // start dragging after the user holds the pointer down
| .on('hold', function (event) {
| var interaction = event.interaction;
|
| if (!interaction.interacting()) {
| interaction.start({ name: 'drag' },
| event.interactable,
| event.currentTarget);
| }
| });
\*/
start: function (action, interactable, element) {
if (this.interacting()
|| !this.pointerIsDown
|| this.pointerIds.length < (action.name === 'gesture'? 2 : 1)) {
return;
}
// if this interaction had been removed after stopping
// add it back
if (indexOf(interactions, this) === -1) {
interactions.push(this);
}
// set the startCoords if there was no prepared action
if (!this.prepared.name) {
this.setEventXY(this.startCoords, this.pointers);
}
this.prepared.name = action.name;
this.prepared.axis = action.axis;
this.prepared.edges = action.edges;
this.target = interactable;
this.element = element;
this.setStartOffsets(action.name, interactable, element);
this.setModifications(this.startCoords.page);
this.prevEvent = this[this.prepared.name + 'Start'](this.downEvent);
},
pointerMove: function (pointer, event, eventTarget, curEventTarget, preEnd) {
if (this.inertiaStatus.active) {
var pageUp = this.inertiaStatus.upCoords.page;
var clientUp = this.inertiaStatus.upCoords.client;
var inertiaPosition = {
pageX : pageUp.x + this.inertiaStatus.sx,
pageY : pageUp.y + this.inertiaStatus.sy,
clientX: clientUp.x + this.inertiaStatus.sx,
clientY: clientUp.y + this.inertiaStatus.sy
};
this.setEventXY(this.curCoords, [inertiaPosition]);
}
else {
this.recordPointer(pointer);
this.setEventXY(this.curCoords, this.pointers);
}
var duplicateMove = (this.curCoords.page.x === this.prevCoords.page.x
&& this.curCoords.page.y === this.prevCoords.page.y
&& this.curCoords.client.x === this.prevCoords.client.x
&& this.curCoords.client.y === this.prevCoords.client.y);
var dx, dy,
pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer));
// register movement greater than pointerMoveTolerance
if (this.pointerIsDown && !this.pointerWasMoved) {
dx = this.curCoords.client.x - this.startCoords.client.x;
dy = this.curCoords.client.y - this.startCoords.client.y;
this.pointerWasMoved = hypot(dx, dy) > pointerMoveTolerance;
}
if (!duplicateMove && (!this.pointerIsDown || this.pointerWasMoved)) {
if (this.pointerIsDown) {
clearTimeout(this.holdTimers[pointerIndex]);
}
this.collectEventTargets(pointer, event, eventTarget, 'move');
}
if (!this.pointerIsDown) { return; }
if (duplicateMove && this.pointerWasMoved && !preEnd) {
this.checkAndPreventDefault(event, this.target, this.element);
return;
}
// set pointer coordinate, time changes and speeds
setEventDeltas(this.pointerDelta, this.prevCoords, this.curCoords);
if (!this.prepared.name) { return; }
if (this.pointerWasMoved
// ignore movement while inertia is active
&& (!this.inertiaStatus.active || (pointer instanceof InteractEvent && /inertiastart/.test(pointer.type)))) {
// if just starting an action, calculate the pointer speed now
if (!this.interacting()) {
setEventDeltas(this.pointerDelta, this.prevCoords, this.curCoords);
// check if a drag is in the correct axis
if (this.prepared.name === 'drag') {
var absX = Math.abs(dx),
absY = Math.abs(dy),
targetAxis = this.target.options.drag.axis,
axis = (absX > absY ? 'x' : absX < absY ? 'y' : 'xy');
// if the movement isn't in the axis of the interactable
if (axis !== 'xy' && targetAxis !== 'xy' && targetAxis !== axis) {
// cancel the prepared action
this.prepared.name = null;
// then try to get a drag from another ineractable
var element = eventTarget;
// check element interactables
while (isElement(element)) {
var elementInteractable = interactables.get(element);
if (elementInteractable
&& elementInteractable !== this.target
&& !elementInteractable.options.drag.manualStart
&& elementInteractable.getAction(this.downPointer, this.downEvent, this, element).name === 'drag'
&& checkAxis(axis, elementInteractable)) {
this.prepared.name = 'drag';
this.target = elementInteractable;
this.element = element;
break;
}
element = parentElement(element);
}
// if there's no drag from element interactables,
// check the selector interactables
if (!this.prepared.name) {
var thisInteraction = this;
var getDraggable = function (interactable, selector, context) {
var elements = ie8MatchesSelector
? context.querySelectorAll(selector)
: undefined;
if (interactable === thisInteraction.target) { return; }
if (inContext(interactable, eventTarget)
&& !interactable.options.drag.manualStart
&& !testIgnore(interactable, element, eventTarget)
&& testAllow(interactable, element, eventTarget)
&& matchesSelector(element, selector, elements)
&& interactable.getAction(thisInteraction.downPointer, thisInteraction.downEvent, thisInteraction, element).name === 'drag'
&& checkAxis(axis, interactable)
&& withinInteractionLimit(interactable, element, 'drag')) {
return interactable;
}
};
element = eventTarget;
while (isElement(element)) {
var selectorInteractable = interactables.forEachSelector(getDraggable);
if (selectorInteractable) {
this.prepared.name = 'drag';
this.target = selectorInteractable;
this.element = element;
break;
}
element = parentElement(element);
}
}
}
}
}
var starting = !!this.prepared.name && !this.interacting();
if (starting
&& (this.target.options[this.prepared.name].manualStart
|| !withinInteractionLimit(this.target, this.element, this.prepared))) {
this.stop(event);
return;
}
if (this.prepared.name && this.target) {
if (starting) {
this.start(this.prepared, this.target, this.element);
}
var shouldMove = this.setModifications(this.curCoords.page, preEnd);
// move if snapping or restriction doesn't prevent it
if (shouldMove || starting) {
this.prevEvent = this[this.prepared.name + 'Move'](event);
}
this.checkAndPreventDefault(event, this.target, this.element);
}
}
copyCoords(this.prevCoords, this.curCoords);
if (this.dragging || this.resizing) {
this.autoScrollMove(pointer);
}
},
dragStart: function (event) {
var dragEvent = new InteractEvent(this, event, 'drag', 'start', this.element);
this.dragging = true;
this.target.fire(dragEvent);
// reset active dropzones
this.activeDrops.dropzones = [];
this.activeDrops.elements = [];
this.activeDrops.rects = [];
if (!this.dynamicDrop) {
this.setActiveDrops(this.element);
}
var dropEvents = this.getDropEvents(event, dragEvent);
if (dropEvents.activate) {
this.fireActiveDrops(dropEvents.activate);
}
return dragEvent;
},
dragMove: function (event) {
var target = this.target,
dragEvent = new InteractEvent(this, event, 'drag', 'move', this.element),
draggableElement = this.element,
drop = this.getDrop(dragEvent, event, draggableElement);
this.dropTarget = drop.dropzone;
this.dropElement = drop.element;
var dropEvents = this.getDropEvents(event, dragEvent);
target.fire(dragEvent);
if (dropEvents.leave) { this.prevDropTarget.fire(dropEvents.leave); }
if (dropEvents.enter) { this.dropTarget.fire(dropEvents.enter); }
if (dropEvents.move ) { this.dropTarget.fire(dropEvents.move ); }
this.prevDropTarget = this.dropTarget;
this.prevDropElement = this.dropElement;
return dragEvent;
},
resizeStart: function (event) {
var resizeEvent = new InteractEvent(this, event, 'resize', 'start', this.element);
if (this.prepared.edges) {
var startRect = this.target.getRect(this.element);
/*
* When using the `resizable.square` or `resizable.preserveAspectRatio` options, resizing from one edge
* will affect another. E.g. with `resizable.square`, resizing to make the right edge larger will make
* the bottom edge larger by the same amount. We call these 'linked' edges. Any linked edges will depend
* on the active edges and the edge being interacted with.
*/
if (this.target.options.resize.square || this.target.options.resize.preserveAspectRatio) {
var linkedEdges = extend({}, this.prepared.edges);
linkedEdges.top = linkedEdges.top || (linkedEdges.left && !linkedEdges.bottom);
linkedEdges.left = linkedEdges.left || (linkedEdges.top && !linkedEdges.right );
linkedEdges.bottom = linkedEdges.bottom || (linkedEdges.right && !linkedEdges.top );
linkedEdges.right = linkedEdges.right || (linkedEdges.bottom && !linkedEdges.left );
this.prepared._linkedEdges = linkedEdges;
}
else {
this.prepared._linkedEdges = null;
}
// if using `resizable.preserveAspectRatio` option, record aspect ratio at the start of the resize
if (this.target.options.resize.preserveAspectRatio) {
this.resizeStartAspectRatio = startRect.width / startRect.height;
}
this.resizeRects = {
start : startRect,
current : extend({}, startRect),
restricted: extend({}, startRect),
previous : extend({}, startRect),
delta : {
left: 0, right : 0, width : 0,
top : 0, bottom: 0, height: 0
}
};
resizeEvent.rect = this.resizeRects.restricted;
resizeEvent.deltaRect = this.resizeRects.delta;
}
this.target.fire(resizeEvent);
this.resizing = true;
return resizeEvent;
},
resizeMove: function (event) {
var resizeEvent = new InteractEvent(this, event, 'resize', 'move', this.element);
var edges = this.prepared.edges,
invert = this.target.options.resize.invert,
invertible = invert === 'reposition' || invert === 'negate';
if (edges) {
var dx = resizeEvent.dx,
dy = resizeEvent.dy,
start = this.resizeRects.start,
current = this.resizeRects.current,
restricted = this.resizeRects.restricted,
delta = this.resizeRects.delta,
previous = extend(this.resizeRects.previous, restricted),
originalEdges = edges;
// `resize.preserveAspectRatio` takes precedence over `resize.square`
if (this.target.options.resize.preserveAspectRatio) {
var resizeStartAspectRatio = this.resizeStartAspectRatio;
edges = this.prepared._linkedEdges;
if ((originalEdges.left && originalEdges.bottom)
|| (originalEdges.right && originalEdges.top)) {
dy = -dx / resizeStartAspectRatio;
}
else if (originalEdges.left || originalEdges.right) { dy = dx / resizeStartAspectRatio; }
else if (originalEdges.top || originalEdges.bottom) { dx = dy * resizeStartAspectRatio; }
}
else if (this.target.options.resize.square) {
edges = this.prepared._linkedEdges;
if ((originalEdges.left && originalEdges.bottom)
|| (originalEdges.right && originalEdges.top)) {
dy = -dx;
}
else if (originalEdges.left || originalEdges.right) { dy = dx; }
else if (originalEdges.top || originalEdges.bottom) { dx = dy; }
}
// update the 'current' rect without modifications
if (edges.top ) { current.top += dy; }
if (edges.bottom) { current.bottom += dy; }
if (edges.left ) { current.left += dx; }
if (edges.right ) { current.right += dx; }
if (invertible) {
// if invertible, copy the current rect
extend(restricted, current);
if (invert === 'reposition') {
// swap edge values if necessary to keep width/height positive
var swap;
if (restricted.top > restricted.bottom) {
swap = restricted.top;
restricted.top = restricted.bottom;
restricted.bottom = swap;
}
if (restricted.left > restricted.right) {
swap = restricted.left;
restricted.left = restricted.right;
restricted.right = swap;
}
}
}
else {
// if not invertible, restrict to minimum of 0x0 rect
restricted.top = Math.min(current.top, start.bottom);
restricted.bottom = Math.max(current.bottom, start.top);
restricted.left = Math.min(current.left, start.right);
restricted.right = Math.max(current.right, start.left);
}
restricted.width = restricted.right - restricted.left;
restricted.height = restricted.bottom - restricted.top ;
for (var edge in restricted) {
delta[edge] = restricted[edge] - previous[edge];
}
resizeEvent.edges = this.prepared.edges;
resizeEvent.rect = restricted;
resizeEvent.deltaRect = delta;
}
this.target.fire(resizeEvent);
return resizeEvent;
},
gestureStart: function (event) {
var gestureEvent = new InteractEvent(this, event, 'gesture', 'start', this.element);
gestureEvent.ds = 0;
this.gesture.startDistance = this.gesture.prevDistance = gestureEvent.distance;
this.gesture.startAngle = this.gesture.prevAngle = gestureEvent.angle;
this.gesture.scale = 1;
this.gesturing = true;
this.target.fire(gestureEvent);
return gestureEvent;
},
gestureMove: function (event) {
if (!this.pointerIds.length) {
return this.prevEvent;
}
var gestureEvent;
gestureEvent = new InteractEvent(this, event, 'gesture', 'move', this.element);
gestureEvent.ds = gestureEvent.scale - this.gesture.scale;
this.target.fire(gestureEvent);
this.gesture.prevAngle = gestureEvent.angle;
this.gesture.prevDistance = gestureEvent.distance;
if (gestureEvent.scale !== Infinity &&
gestureEvent.scale !== null &&
gestureEvent.scale !== undefined &&
!isNaN(gestureEvent.scale)) {
this.gesture.scale = gestureEvent.scale;
}
return gestureEvent;
},
pointerHold: function (pointer, event, eventTarget) {
this.collectEventTargets(pointer, event, eventTarget, 'hold');
},
pointerUp: function (pointer, event, eventTarget, curEventTarget) {
var pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer));
clearTimeout(this.holdTimers[pointerIndex]);
this.collectEventTargets(pointer, event, eventTarget, 'up' );
this.collectEventTargets(pointer, event, eventTarget, 'tap');
this.pointerEnd(pointer, event, eventTarget, curEventTarget);
this.removePointer(pointer);
},
pointerCancel: function (pointer, event, eventTarget, curEventTarget) {
var pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer));
clearTimeout(this.holdTimers[pointerIndex]);
this.collectEventTargets(pointer, event, eventTarget, 'cancel');
this.pointerEnd(pointer, event, eventTarget, curEventTarget);
this.removePointer(pointer);
},
// http://www.quirksmode.org/dom/events/click.html
// >Events leading to dblclick
//
// IE8 doesn't fire down event before dblclick.
// This workaround tries to fire a tap and doubletap after dblclick
ie8Dblclick: function (pointer, event, eventTarget) {
if (this.prevTap
&& event.clientX === this.prevTap.clientX
&& event.clientY === this.prevTap.clientY
&& eventTarget === this.prevTap.target) {
this.downTargets[0] = eventTarget;
this.downTimes[0] = new Date().getTime();
this.collectEventTargets(pointer, event, eventTarget, 'tap');
}
},
// End interact move events and stop auto-scroll unless inertia is enabled
pointerEnd: function (pointer, event, eventTarget, curEventTarget) {
var endEvent,
target = this.target,
options = target && target.options,
inertiaOptions = options && this.prepared.name && options[this.prepared.name].inertia,
inertiaStatus = this.inertiaStatus;
if (this.interacting()) {
if (inertiaStatus.active && !inertiaStatus.ending) { return; }
var pointerSpeed,
now = new Date().getTime(),
inertiaPossible = false,
inertia = false,
smoothEnd = false,
endSnap = checkSnap(target, this.prepared.name) && options[this.prepared.name].snap.endOnly,
endRestrict = checkRestrict(target, this.prepared.name) && options[this.prepared.name].restrict.endOnly,
dx = 0,
dy = 0,
startEvent;
if (this.dragging) {
if (options.drag.axis === 'x' ) { pointerSpeed = Math.abs(this.pointerDelta.client.vx); }
else if (options.drag.axis === 'y' ) { pointerSpeed = Math.abs(this.pointerDelta.client.vy); }
else /*options.drag.axis === 'xy'*/{ pointerSpeed = this.pointerDelta.client.speed; }
}
else {
pointerSpeed = this.pointerDelta.client.speed;
}
// check if inertia should be started
inertiaPossible = (inertiaOptions && inertiaOptions.enabled
&& this.prepared.name !== 'gesture'
&& event !== inertiaStatus.startEvent);
inertia = (inertiaPossible
&& (now - this.curCoords.timeStamp) < 50
&& pointerSpeed > inertiaOptions.minSpeed
&& pointerSpeed > inertiaOptions.endSpeed);
if (inertiaPossible && !inertia && (endSnap || endRestrict)) {
var snapRestrict = {};
snapRestrict.snap = snapRestrict.restrict = snapRestrict;
if (endSnap) {
this.setSnapping(this.curCoords.page, snapRestrict);
if (snapRestrict.locked) {
dx += snapRestrict.dx;
dy += snapRestrict.dy;
}
}
if (endRestrict) {
this.setRestriction(this.curCoords.page, snapRestrict);
if (snapRestrict.restricted) {
dx += snapRestrict.dx;
dy += snapRestrict.dy;
}
}
if (dx || dy) {
smoothEnd = true;
}
}
if (inertia || smoothEnd) {
copyCoords(inertiaStatus.upCoords, this.curCoords);
this.pointers[0] = inertiaStatus.startEvent = startEvent =
new InteractEvent(this, event, this.prepared.name, 'inertiastart', this.element);
inertiaStatus.t0 = now;
target.fire(inertiaStatus.startEvent);
if (inertia) {
inertiaStatus.vx0 = this.pointerDelta.client.vx;
inertiaStatus.vy0 = this.pointerDelta.client.vy;
inertiaStatus.v0 = pointerSpeed;
this.calcInertia(inertiaStatus);
var page = extend({}, this.curCoords.page),
origin = getOriginXY(target, this.element),
statusObject;
page.x = page.x + inertiaStatus.xe - origin.x;
page.y = page.y + inertiaStatus.ye - origin.y;
statusObject = {
useStatusXY: true,
x: page.x,
y: page.y,
dx: 0,
dy: 0,
snap: null
};
statusObject.snap = statusObject;
dx = dy = 0;
if (endSnap) {
var snap = this.setSnapping(this.curCoords.page, statusObject);
if (snap.locked) {
dx += snap.dx;
dy += snap.dy;
}
}
if (endRestrict) {
var restrict = this.setRestriction(this.curCoords.page, statusObject);
if (restrict.restricted) {
dx += restrict.dx;
dy += restrict.dy;
}
}
inertiaStatus.modifiedXe += dx;
inertiaStatus.modifiedYe += dy;
inertiaStatus.i = reqFrame(this.boundInertiaFrame);
}
else {
inertiaStatus.smoothEnd = true;
inertiaStatus.xe = dx;
inertiaStatus.ye = dy;
inertiaStatus.sx = inertiaStatus.sy = 0;
inertiaStatus.i = reqFrame(this.boundSmoothEndFrame);
}
inertiaStatus.active = true;
return;
}
if (endSnap || endRestrict) {
// fire a move event at the snapped coordinates
this.pointerMove(pointer, event, eventTarget, curEventTarget, true);
}
}
if (this.dragging) {
endEvent = new InteractEvent(this, event, 'drag', 'end', this.element);
var draggableElement = this.element,
drop = this.getDrop(endEvent, event, draggableElement);
this.dropTarget = drop.dropzone;
this.dropElement = drop.element;
var dropEvents = this.getDropEvents(event, endEvent);
if (dropEvents.leave) { this.prevDropTarget.fire(dropEvents.leave); }
if (dropEvents.enter) { this.dropTarget.fire(dropEvents.enter); }
if (dropEvents.drop ) { this.dropTarget.fire(dropEvents.drop ); }
if (dropEvents.deactivate) {
this.fireActiveDrops(dropEvents.deactivate);
}
target.fire(endEvent);
}
else if (this.resizing) {
endEvent = new InteractEvent(this, event, 'resize', 'end', this.element);
target.fire(endEvent);
}
else if (this.gesturing) {
endEvent = new InteractEvent(this, event, 'gesture', 'end', this.element);
target.fire(endEvent);
}
this.stop(event);
},
collectDrops: function (element) {
var drops = [],
elements = [],
i;
element = element || this.element;
// collect all dropzones and their elements which qualify for a drop
for (i = 0; i < interactables.length; i++) {
if (!interactables[i].options.drop.enabled) { continue; }
var current = interactables[i],
accept = current.options.drop.accept;
// test the draggable element against the dropzone's accept setting
if ((isElement(accept) && accept !== element)
|| (isString(accept)
&& !matchesSelector(element, accept))) {
continue;
}
// query for new elements if necessary
var dropElements = current.selector? current._context.querySelectorAll(current.selector) : [current._element];
for (var j = 0, len = dropElements.length; j < len; j++) {
var currentElement = dropElements[j];
if (currentElement === element) {
continue;
}
drops.push(current);
elements.push(currentElement);
}
}
return {
dropzones: drops,
elements: elements
};
},
fireActiveDrops: function (event) {
var i,
current,
currentElement,
prevElement;
// loop through all active dropzones and trigger event
for (i = 0; i < this.activeDrops.dropzones.length; i++) {
current = this.activeDrops.dropzones[i];
currentElement = this.activeDrops.elements [i];
// prevent trigger of duplicate events on same element
if (currentElement !== prevElement) {
// set current element as event target
event.target = currentElement;
current.fire(event);
}
prevElement = currentElement;
}
},
// Collect a new set of possible drops and save them in activeDrops.
// setActiveDrops should always be called when a drag has just started or a
// drag event happens while dynamicDrop is true
setActiveDrops: function (dragElement) {
// get dropzones and their elements that could receive the draggable
var possibleDrops = this.collectDrops(dragElement, true);
this.activeDrops.dropzones = possibleDrops.dropzones;
this.activeDrops.elements = possibleDrops.elements;
this.activeDrops.rects = [];
for (var i = 0; i < this.activeDrops.dropzones.length; i++) {
this.activeDrops.rects[i] = this.activeDrops.dropzones[i].getRect(this.activeDrops.elements[i]);
}
},
getDrop: function (dragEvent, event, dragElement) {
var validDrops = [];
if (dynamicDrop) {
this.setActiveDrops(dragElement);
}
// collect all dropzones and their elements which qualify for a drop
for (var j = 0; j < this.activeDrops.dropzones.length; j++) {
var current = this.activeDrops.dropzones[j],
currentElement = this.activeDrops.elements [j],
rect = this.activeDrops.rects [j];
validDrops.push(current.dropCheck(dragEvent, event, this.target, dragElement, currentElement, rect)
? currentElement
: null);
}
// get the most appropriate dropzone based on DOM depth and order
var dropIndex = indexOfDeepestElement(validDrops),
dropzone = this.activeDrops.dropzones[dropIndex] || null,
element = this.activeDrops.elements [dropIndex] || null;
return {
dropzone: dropzone,
element: element
};
},
getDropEvents: function (pointerEvent, dragEvent) {
var dropEvents = {
enter : null,
leave : null,
activate : null,
deactivate: null,
move : null,
drop : null
};
if (this.dropElement !== this.prevDropElement) {
// if there was a prevDropTarget, create a dragleave event
if (this.prevDropTarget) {
dropEvents.leave = {
target : this.prevDropElement,
dropzone : this.prevDropTarget,
relatedTarget: dragEvent.target,
draggable : dragEvent.interactable,
dragEvent : dragEvent,
interaction : this,
timeStamp : dragEvent.timeStamp,
type : 'dragleave'
};
dragEvent.dragLeave = this.prevDropElement;
dragEvent.prevDropzone = this.prevDropTarget;
}
// if the dropTarget is not null, create a dragenter event
if (this.dropTarget) {
dropEvents.enter = {
target : this.dropElement,
dropzone : this.dropTarget,
relatedTarget: dragEvent.target,
draggable : dragEvent.interactable,
dragEvent : dragEvent,
interaction : this,
timeStamp : dragEvent.timeStamp,
type : 'dragenter'
};
dragEvent.dragEnter = this.dropElement;
dragEvent.dropzone = this.dropTarget;
}
}
if (dragEvent.type === 'dragend' && this.dropTarget) {
dropEvents.drop = {
target : this.dropElement,
dropzone : this.dropTarget,
relatedTarget: dragEvent.target,
draggable : dragEvent.interactable,
dragEvent : dragEvent,
interaction : this,
timeStamp : dragEvent.timeStamp,
type : 'drop'
};
dragEvent.dropzone = this.dropTarget;
}
if (dragEvent.type === 'dragstart') {
dropEvents.activate = {
target : null,
dropzone : null,
relatedTarget: dragEvent.target,
draggable : dragEvent.interactable,
dragEvent : dragEvent,
interaction : this,
timeStamp : dragEvent.timeStamp,
type : 'dropactivate'
};
}
if (dragEvent.type === 'dragend') {
dropEvents.deactivate = {
target : null,
dropzone : null,
relatedTarget: dragEvent.target,
draggable : dragEvent.interactable,
dragEvent : dragEvent,
interaction : this,
timeStamp : dragEvent.timeStamp,
type : 'dropdeactivate'
};
}
if (dragEvent.type === 'dragmove' && this.dropTarget) {
dropEvents.move = {
target : this.dropElement,
dropzone : this.dropTarget,
relatedTarget: dragEvent.target,
draggable : dragEvent.interactable,
dragEvent : dragEvent,
interaction : this,
dragmove : dragEvent,
timeStamp : dragEvent.timeStamp,
type : 'dropmove'
};
dragEvent.dropzone = this.dropTarget;
}
return dropEvents;
},
currentAction: function () {
return (this.dragging && 'drag') || (this.resizing && 'resize') || (this.gesturing && 'gesture') || null;
},
interacting: function () {
return this.dragging || this.resizing || this.gesturing;
},
clearTargets: function () {
this.target = this.element = null;
this.dropTarget = this.dropElement = this.prevDropTarget = this.prevDropElement = null;
},
stop: function (event) {
if (this.interacting()) {
autoScroll.stop();
this.matches = [];
this.matchElements = [];
var target = this.target;
if (target.options.styleCursor) {
target._doc.documentElement.style.cursor = '';
}
// prevent Default only if were previously interacting
if (event && isFunction(event.preventDefault)) {
this.checkAndPreventDefault(event, target, this.element);
}
if (this.dragging) {
this.activeDrops.dropzones = this.activeDrops.elements = this.activeDrops.rects = null;
}
}
this.clearTargets();
this.pointerIsDown = this.snapStatus.locked = this.dragging = this.resizing = this.gesturing = false;
this.prepared.name = this.prevEvent = null;
this.inertiaStatus.resumeDx = this.inertiaStatus.resumeDy = 0;
// remove pointers if their ID isn't in this.pointerIds
for (var i = 0; i < this.pointers.length; i++) {
if (indexOf(this.pointerIds, getPointerId(this.pointers[i])) === -1) {
this.pointers.splice(i, 1);
}
}
},
inertiaFrame: function () {
var inertiaStatus = this.inertiaStatus,
options = this.target.options[this.prepared.name].inertia,
lambda = options.resistance,
t = new Date().getTime() / 1000 - inertiaStatus.t0;
if (t < inertiaStatus.te) {
var progress = 1 - (Math.exp(-lambda * t) - inertiaStatus.lambda_v0) / inertiaStatus.one_ve_v0;
if (inertiaStatus.modifiedXe === inertiaStatus.xe && inertiaStatus.modifiedYe === inertiaStatus.ye) {
inertiaStatus.sx = inertiaStatus.xe * progress;
inertiaStatus.sy = inertiaStatus.ye * progress;
}
else {
var quadPoint = getQuadraticCurvePoint(
0, 0,
inertiaStatus.xe, inertiaStatus.ye,
inertiaStatus.modifiedXe, inertiaStatus.modifiedYe,
progress);
inertiaStatus.sx = quadPoint.x;
inertiaStatus.sy = quadPoint.y;
}
this.pointerMove(inertiaStatus.startEvent, inertiaStatus.startEvent);
inertiaStatus.i = reqFrame(this.boundInertiaFrame);
}
else {
inertiaStatus.ending = true;
inertiaStatus.sx = inertiaStatus.modifiedXe;
inertiaStatus.sy = inertiaStatus.modifiedYe;
this.pointerMove(inertiaStatus.startEvent, inertiaStatus.startEvent);
this.pointerEnd(inertiaStatus.startEvent, inertiaStatus.startEvent);
inertiaStatus.active = inertiaStatus.ending = false;
}
},
smoothEndFrame: function () {
var inertiaStatus = this.inertiaStatus,
t = new Date().getTime() - inertiaStatus.t0,
duration = this.target.options[this.prepared.name].inertia.smoothEndDuration;
if (t < duration) {
inertiaStatus.sx = easeOutQuad(t, 0, inertiaStatus.xe, duration);
inertiaStatus.sy = easeOutQuad(t, 0, inertiaStatus.ye, duration);
this.pointerMove(inertiaStatus.startEvent, inertiaStatus.startEvent);
inertiaStatus.i = reqFrame(this.boundSmoothEndFrame);
}
else {
inertiaStatus.ending = true;
inertiaStatus.sx = inertiaStatus.xe;
inertiaStatus.sy = inertiaStatus.ye;
this.pointerMove(inertiaStatus.startEvent, inertiaStatus.startEvent);
this.pointerEnd(inertiaStatus.startEvent, inertiaStatus.startEvent);
inertiaStatus.smoothEnd =
inertiaStatus.active = inertiaStatus.ending = false;
}
},
addPointer: function (pointer) {
var id = getPointerId(pointer),
index = this.mouse? 0 : indexOf(this.pointerIds, id);
if (index === -1) {
index = this.pointerIds.length;
}
this.pointerIds[index] = id;
this.pointers[index] = pointer;
return index;
},
removePointer: function (pointer) {
var id = getPointerId(pointer),
index = this.mouse? 0 : indexOf(this.pointerIds, id);
if (index === -1) { return; }
this.pointers .splice(index, 1);
this.pointerIds .splice(index, 1);
this.downTargets.splice(index, 1);
this.downTimes .splice(index, 1);
this.holdTimers .splice(index, 1);
},
recordPointer: function (pointer) {
var index = this.mouse? 0: indexOf(this.pointerIds, getPointerId(pointer));
if (index === -1) { return; }
this.pointers[index] = pointer;
},
collectEventTargets: function (pointer, event, eventTarget, eventType) {
var pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer));
// do not fire a tap event if the pointer was moved before being lifted
if (eventType === 'tap' && (this.pointerWasMoved
// or if the pointerup target is different to the pointerdown target
|| !(this.downTargets[pointerIndex] && this.downTargets[pointerIndex] === eventTarget))) {
return;
}
var targets = [],
elements = [],
element = eventTarget;
function collectSelectors (interactable, selector, context) {
var els = ie8MatchesSelector
? context.querySelectorAll(selector)
: undefined;
if (interactable._iEvents[eventType]
&& isElement(element)
&& inContext(interactable, element)
&& !testIgnore(interactable, element, eventTarget)
&& testAllow(interactable, element, eventTarget)
&& matchesSelector(element, selector, els)) {
targets.push(interactable);
elements.push(element);
}
}
while (element) {
if (interact.isSet(element) && interact(element)._iEvents[eventType]) {
targets.push(interact(element));
elements.push(element);
}
interactables.forEachSelector(collectSelectors);
element = parentElement(element);
}
// create the tap event even if there are no listeners so that
// doubletap can still be created and fired
if (targets.length || eventType === 'tap') {
this.firePointers(pointer, event, eventTarget, targets, elements, eventType);
}
},
firePointers: function (pointer, event, eventTarget, targets, elements, eventType) {
var pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer)),
pointerEvent = {},
i,
// for tap events
interval, createNewDoubleTap;
// if it's a doubletap then the event properties would have been
// copied from the tap event and provided as the pointer argument
if (eventType === 'doubletap') {
pointerEvent = pointer;
}
else {
pointerExtend(pointerEvent, event);
if (event !== pointer) {
pointerExtend(pointerEvent, pointer);
}
pointerEvent.preventDefault = preventOriginalDefault;
pointerEvent.stopPropagation = InteractEvent.prototype.stopPropagation;
pointerEvent.stopImmediatePropagation = InteractEvent.prototype.stopImmediatePropagation;
pointerEvent.interaction = this;
pointerEvent.timeStamp = new Date().getTime();
pointerEvent.originalEvent = event;
pointerEvent.originalPointer = pointer;
pointerEvent.type = eventType;
pointerEvent.pointerId = getPointerId(pointer);
pointerEvent.pointerType = this.mouse? 'mouse' : !supportsPointerEvent? 'touch'
: isString(pointer.pointerType)
? pointer.pointerType
: [,,'touch', 'pen', 'mouse'][pointer.pointerType];
}
if (eventType === 'tap') {
pointerEvent.dt = pointerEvent.timeStamp - this.downTimes[pointerIndex];
interval = pointerEvent.timeStamp - this.tapTime;
createNewDoubleTap = !!(this.prevTap && this.prevTap.type !== 'doubletap'
&& this.prevTap.target === pointerEvent.target
&& interval < 500);
pointerEvent.double = createNewDoubleTap;
this.tapTime = pointerEvent.timeStamp;
}
for (i = 0; i < targets.length; i++) {
pointerEvent.currentTarget = elements[i];
pointerEvent.interactable = targets[i];
targets[i].fire(pointerEvent);
if (pointerEvent.immediatePropagationStopped
||(pointerEvent.propagationStopped && elements[i + 1] !== pointerEvent.currentTarget)) {
break;
}
}
if (createNewDoubleTap) {
var doubleTap = {};
extend(doubleTap, pointerEvent);
doubleTap.dt = interval;
doubleTap.type = 'doubletap';
this.collectEventTargets(doubleTap, event, eventTarget, 'doubletap');
this.prevTap = doubleTap;
}
else if (eventType === 'tap') {
this.prevTap = pointerEvent;
}
},
validateSelector: function (pointer, event, matches, matchElements) {
for (var i = 0, len = matches.length; i < len; i++) {
var match = matches[i],
matchElement = matchElements[i],
action = validateAction(match.getAction(pointer, event, this, matchElement), match);
if (action && withinInteractionLimit(match, matchElement, action)) {
this.target = match;
this.element = matchElement;
return action;
}
}
},
setSnapping: function (pageCoords, status) {
var snap = this.target.options[this.prepared.name].snap,
targets = [],
target,
page,
i;
status = status || this.snapStatus;
if (status.useStatusXY) {
page = { x: status.x, y: status.y };
}
else {
var origin = getOriginXY(this.target, this.element);
page = extend({}, pageCoords);
page.x -= origin.x;
page.y -= origin.y;
}
status.realX = page.x;
status.realY = page.y;
page.x = page.x - this.inertiaStatus.resumeDx;
page.y = page.y - this.inertiaStatus.resumeDy;
var len = snap.targets? snap.targets.length : 0;
for (var relIndex = 0; relIndex < this.snapOffsets.length; relIndex++) {
var relative = {
x: page.x - this.snapOffsets[relIndex].x,
y: page.y - this.snapOffsets[relIndex].y
};
for (i = 0; i < len; i++) {
if (isFunction(snap.targets[i])) {
target = snap.targets[i](relative.x, relative.y, this);
}
else {
target = snap.targets[i];
}
if (!target) { continue; }
targets.push({
x: isNumber(target.x) ? (target.x + this.snapOffsets[relIndex].x) : relative.x,
y: isNumber(target.y) ? (target.y + this.snapOffsets[relIndex].y) : relative.y,
range: isNumber(target.range)? target.range: snap.range
});
}
}
var closest = {
target: null,
inRange: false,
distance: 0,
range: 0,
dx: 0,
dy: 0
};
for (i = 0, len = targets.length; i < len; i++) {
target = targets[i];
var range = target.range,
dx = target.x - page.x,
dy = target.y - page.y,
distance = hypot(dx, dy),
inRange = distance <= range;
// Infinite targets count as being out of range
// compared to non infinite ones that are in range
if (range === Infinity && closest.inRange && closest.range !== Infinity) {
inRange = false;
}
if (!closest.target || (inRange
// is the closest target in range?
? (closest.inRange && range !== Infinity
// the pointer is relatively deeper in this target
? distance / range < closest.distance / closest.range
// this target has Infinite range and the closest doesn't
: (range === Infinity && closest.range !== Infinity)
// OR this target is closer that the previous closest
|| distance < closest.distance)
// The other is not in range and the pointer is closer to this target
: (!closest.inRange && distance < closest.distance))) {
if (range === Infinity) {
inRange = true;
}
closest.target = target;
closest.distance = distance;
closest.range = range;
closest.inRange = inRange;
closest.dx = dx;
closest.dy = dy;
status.range = range;
}
}
var snapChanged;
if (closest.target) {
snapChanged = (status.snappedX !== closest.target.x || status.snappedY !== closest.target.y);
status.snappedX = closest.target.x;
status.snappedY = closest.target.y;
}
else {
snapChanged = true;
status.snappedX = NaN;
status.snappedY = NaN;
}
status.dx = closest.dx;
status.dy = closest.dy;
status.changed = (snapChanged || (closest.inRange && !status.locked));
status.locked = closest.inRange;
return status;
},
setRestriction: function (pageCoords, status) {
var target = this.target,
restrict = target && target.options[this.prepared.name].restrict,
restriction = restrict && restrict.restriction,
page;
if (!restriction) {
return status;
}
status = status || this.restrictStatus;
page = status.useStatusXY
? page = { x: status.x, y: status.y }
: page = extend({}, pageCoords);
if (status.snap && status.snap.locked) {
page.x += status.snap.dx || 0;
page.y += status.snap.dy || 0;
}
page.x -= this.inertiaStatus.resumeDx;
page.y -= this.inertiaStatus.resumeDy;
status.dx = 0;
status.dy = 0;
status.restricted = false;
var rect, restrictedX, restrictedY;
if (isString(restriction)) {
if (restriction === 'parent') {
restriction = parentElement(this.element);
}
else if (restriction === 'self') {
restriction = target.getRect(this.element);
}
else {
restriction = closest(this.element, restriction);
}
if (!restriction) { return status; }
}
if (isFunction(restriction)) {
restriction = restriction(page.x, page.y, this.element);
}
if (isElement(restriction)) {
restriction = getElementRect(restriction);
}
rect = restriction;
if (!restriction) {
restrictedX = page.x;
restrictedY = page.y;
}
// object is assumed to have
// x, y, width, height or
// left, top, right, bottom
else if ('x' in restriction && 'y' in restriction) {
restrictedX = Math.max(Math.min(rect.x + rect.width - this.restrictOffset.right , page.x), rect.x + this.restrictOffset.left);
restrictedY = Math.max(Math.min(rect.y + rect.height - this.restrictOffset.bottom, page.y), rect.y + this.restrictOffset.top );
}
else {
restrictedX = Math.max(Math.min(rect.right - this.restrictOffset.right , page.x), rect.left + this.restrictOffset.left);
restrictedY = Math.max(Math.min(rect.bottom - this.restrictOffset.bottom, page.y), rect.top + this.restrictOffset.top );
}
status.dx = restrictedX - page.x;
status.dy = restrictedY - page.y;
status.changed = status.restrictedX !== restrictedX || status.restrictedY !== restrictedY;
status.restricted = !!(status.dx || status.dy);
status.restrictedX = restrictedX;
status.restrictedY = restrictedY;
return status;
},
checkAndPreventDefault: function (event, interactable, element) {
if (!(interactable = interactable || this.target)) { return; }
var options = interactable.options,
prevent = options.preventDefault;
if (prevent === 'auto' && element && !/^(input|select|textarea)$/i.test(event.target.nodeName)) {
// do not preventDefault on pointerdown if the prepared action is a drag
// and dragging can only start from a certain direction - this allows
// a touch to pan the viewport if a drag isn't in the right direction
if (/down|start/i.test(event.type)
&& this.prepared.name === 'drag' && options.drag.axis !== 'xy') {
return;
}
// with manualStart, only preventDefault while interacting
if (options[this.prepared.name] && options[this.prepared.name].manualStart
&& !this.interacting()) {
return;
}
event.preventDefault();
return;
}
if (prevent === 'always') {
event.preventDefault();
return;
}
},
calcInertia: function (status) {
var inertiaOptions = this.target.options[this.prepared.name].inertia,
lambda = inertiaOptions.resistance,
inertiaDur = -Math.log(inertiaOptions.endSpeed / status.v0) / lambda;
status.x0 = this.prevEvent.pageX;
status.y0 = this.prevEvent.pageY;
status.t0 = status.startEvent.timeStamp / 1000;
status.sx = status.sy = 0;
status.modifiedXe = status.xe = (status.vx0 - inertiaDur) / lambda;
status.modifiedYe = status.ye = (status.vy0 - inertiaDur) / lambda;
status.te = inertiaDur;
status.lambda_v0 = lambda / status.v0;
status.one_ve_v0 = 1 - inertiaOptions.endSpeed / status.v0;
},
autoScrollMove: function (pointer) {
if (!(this.interacting()
&& checkAutoScroll(this.target, this.prepared.name))) {
return;
}
if (this.inertiaStatus.active) {
autoScroll.x = autoScroll.y = 0;
return;
}
var top,
right,
bottom,
left,
options = this.target.options[this.prepared.name].autoScroll,
container = options.container || getWindow(this.element);
if (isWindow(container)) {
left = pointer.clientX < autoScroll.margin;
top = pointer.clientY < autoScroll.margin;
right = pointer.clientX > container.innerWidth - autoScroll.margin;
bottom = pointer.clientY > container.innerHeight - autoScroll.margin;
}
else {
var rect = getElementClientRect(container);
left = pointer.clientX < rect.left + autoScroll.margin;
top = pointer.clientY < rect.top + autoScroll.margin;
right = pointer.clientX > rect.right - autoScroll.margin;
bottom = pointer.clientY > rect.bottom - autoScroll.margin;
}
autoScroll.x = (right ? 1: left? -1: 0);
autoScroll.y = (bottom? 1: top? -1: 0);
if (!autoScroll.isScrolling) {
// set the autoScroll properties to those of the target
autoScroll.margin = options.margin;
autoScroll.speed = options.speed;
autoScroll.start(this);
}
},
_updateEventTargets: function (target, currentTarget) {
this._eventTarget = target;
this._curEventTarget = currentTarget;
}
};
function getInteractionFromPointer (pointer, eventType, eventTarget) {
var i = 0, len = interactions.length,
mouseEvent = (/mouse/i.test(pointer.pointerType || eventType)
// MSPointerEvent.MSPOINTER_TYPE_MOUSE
|| pointer.pointerType === 4),
interaction;
var id = getPointerId(pointer);
// try to resume inertia with a new pointer
if (/down|start/i.test(eventType)) {
for (i = 0; i < len; i++) {
interaction = interactions[i];
var element = eventTarget;
if (interaction.inertiaStatus.active && interaction.target.options[interaction.prepared.name].inertia.allowResume
&& (interaction.mouse === mouseEvent)) {
while (element) {
// if the element is the interaction element
if (element === interaction.element) {
return interaction;
}
element = parentElement(element);
}
}
}
}
// if it's a mouse interaction
if (mouseEvent || !(supportsTouch || supportsPointerEvent)) {
// find a mouse interaction that's not in inertia phase
for (i = 0; i < len; i++) {
if (interactions[i].mouse && !interactions[i].inertiaStatus.active) {
return interactions[i];
}
}
// find any interaction specifically for mouse.
// if the eventType is a mousedown, and inertia is active
// ignore the interaction
for (i = 0; i < len; i++) {
if (interactions[i].mouse && !(/down/.test(eventType) && interactions[i].inertiaStatus.active)) {
return interaction;
}
}
// create a new interaction for mouse
interaction = new Interaction();
interaction.mouse = true;
return interaction;
}
// get interaction that has this pointer
for (i = 0; i < len; i++) {
if (contains(interactions[i].pointerIds, id)) {
return interactions[i];
}
}
// at this stage, a pointerUp should not return an interaction
if (/up|end|out/i.test(eventType)) {
return null;
}
// get first idle interaction
for (i = 0; i < len; i++) {
interaction = interactions[i];
if ((!interaction.prepared.name || (interaction.target.options.gesture.enabled))
&& !interaction.interacting()
&& !(!mouseEvent && interaction.mouse)) {
return interaction;
}
}
return new Interaction();
}
function doOnInteractions (method) {
return (function (event) {
var interaction,
eventTarget = getActualElement(event.path
? event.path[0]
: event.target),
curEventTarget = getActualElement(event.currentTarget),
i;
if (supportsTouch && /touch/.test(event.type)) {
prevTouchTime = new Date().getTime();
for (i = 0; i < event.changedTouches.length; i++) {
var pointer = event.changedTouches[i];
interaction = getInteractionFromPointer(pointer, event.type, eventTarget);
if (!interaction) { continue; }
interaction._updateEventTargets(eventTarget, curEventTarget);
interaction[method](pointer, event, eventTarget, curEventTarget);
}
}
else {
if (!supportsPointerEvent && /mouse/.test(event.type)) {
// ignore mouse events while touch interactions are active
for (i = 0; i < interactions.length; i++) {
if (!interactions[i].mouse && interactions[i].pointerIsDown) {
return;
}
}
// try to ignore mouse events that are simulated by the browser
// after a touch event
if (new Date().getTime() - prevTouchTime < 500) {
return;
}
}
interaction = getInteractionFromPointer(event, event.type, eventTarget);
if (!interaction) { return; }
interaction._updateEventTargets(eventTarget, curEventTarget);
interaction[method](event, event, eventTarget, curEventTarget);
}
});
}
function InteractEvent (interaction, event, action, phase, element, related) {
var client,
page,
target = interaction.target,
snapStatus = interaction.snapStatus,
restrictStatus = interaction.restrictStatus,
pointers = interaction.pointers,
deltaSource = (target && target.options || defaultOptions).deltaSource,
sourceX = deltaSource + 'X',
sourceY = deltaSource + 'Y',
options = target? target.options: defaultOptions,
origin = getOriginXY(target, element),
starting = phase === 'start',
ending = phase === 'end',
coords = starting? interaction.startCoords : interaction.curCoords;
element = element || interaction.element;
page = extend({}, coords.page);
client = extend({}, coords.client);
page.x -= origin.x;
page.y -= origin.y;
client.x -= origin.x;
client.y -= origin.y;
var relativePoints = options[action].snap && options[action].snap.relativePoints ;
if (checkSnap(target, action) && !(starting && relativePoints && relativePoints.length)) {
this.snap = {
range : snapStatus.range,
locked : snapStatus.locked,
x : snapStatus.snappedX,
y : snapStatus.snappedY,
realX : snapStatus.realX,
realY : snapStatus.realY,
dx : snapStatus.dx,
dy : snapStatus.dy
};
if (snapStatus.locked) {
page.x += snapStatus.dx;
page.y += snapStatus.dy;
client.x += snapStatus.dx;
client.y += snapStatus.dy;
}
}
if (checkRestrict(target, action) && !(starting && options[action].restrict.elementRect) && restrictStatus.restricted) {
page.x += restrictStatus.dx;
page.y += restrictStatus.dy;
client.x += restrictStatus.dx;
client.y += restrictStatus.dy;
this.restrict = {
dx: restrictStatus.dx,
dy: restrictStatus.dy
};
}
this.pageX = page.x;
this.pageY = page.y;
this.clientX = client.x;
this.clientY = client.y;
this.x0 = interaction.startCoords.page.x - origin.x;
this.y0 = interaction.startCoords.page.y - origin.y;
this.clientX0 = interaction.startCoords.client.x - origin.x;
this.clientY0 = interaction.startCoords.client.y - origin.y;
this.ctrlKey = event.ctrlKey;
this.altKey = event.altKey;
this.shiftKey = event.shiftKey;
this.metaKey = event.metaKey;
this.button = event.button;
this.buttons = event.buttons;
this.target = element;
this.t0 = interaction.downTimes[0];
this.type = action + (phase || '');
this.interaction = interaction;
this.interactable = target;
var inertiaStatus = interaction.inertiaStatus;
if (inertiaStatus.active) {
this.detail = 'inertia';
}
if (related) {
this.relatedTarget = related;
}
// end event dx, dy is difference between start and end points
if (ending) {
if (deltaSource === 'client') {
this.dx = client.x - interaction.startCoords.client.x;
this.dy = client.y - interaction.startCoords.client.y;
}
else {
this.dx = page.x - interaction.startCoords.page.x;
this.dy = page.y - interaction.startCoords.page.y;
}
}
else if (starting) {
this.dx = 0;
this.dy = 0;
}
// copy properties from previousmove if starting inertia
else if (phase === 'inertiastart') {
this.dx = interaction.prevEvent.dx;
this.dy = interaction.prevEvent.dy;
}
else {
if (deltaSource === 'client') {
this.dx = client.x - interaction.prevEvent.clientX;
this.dy = client.y - interaction.prevEvent.clientY;
}
else {
this.dx = page.x - interaction.prevEvent.pageX;
this.dy = page.y - interaction.prevEvent.pageY;
}
}
if (interaction.prevEvent && interaction.prevEvent.detail === 'inertia'
&& !inertiaStatus.active
&& options[action].inertia && options[action].inertia.zeroResumeDelta) {
inertiaStatus.resumeDx += this.dx;
inertiaStatus.resumeDy += this.dy;
this.dx = this.dy = 0;
}
if (action === 'resize' && interaction.resizeAxes) {
if (options.resize.square) {
if (interaction.resizeAxes === 'y') {
this.dx = this.dy;
}
else {
this.dy = this.dx;
}
this.axes = 'xy';
}
else {
this.axes = interaction.resizeAxes;
if (interaction.resizeAxes === 'x') {
this.dy = 0;
}
else if (interaction.resizeAxes === 'y') {
this.dx = 0;
}
}
}
else if (action === 'gesture') {
this.touches = [pointers[0], pointers[1]];
if (starting) {
this.distance = touchDistance(pointers, deltaSource);
this.box = touchBBox(pointers);
this.scale = 1;
this.ds = 0;
this.angle = touchAngle(pointers, undefined, deltaSource);
this.da = 0;
}
else if (ending || event instanceof InteractEvent) {
this.distance = interaction.prevEvent.distance;
this.box = interaction.prevEvent.box;
this.scale = interaction.prevEvent.scale;
this.ds = this.scale - 1;
this.angle = interaction.prevEvent.angle;
this.da = this.angle - interaction.gesture.startAngle;
}
else {
this.distance = touchDistance(pointers, deltaSource);
this.box = touchBBox(pointers);
this.scale = this.distance / interaction.gesture.startDistance;
this.angle = touchAngle(pointers, interaction.gesture.prevAngle, deltaSource);
this.ds = this.scale - interaction.gesture.prevScale;
this.da = this.angle - interaction.gesture.prevAngle;
}
}
if (starting) {
this.timeStamp = interaction.downTimes[0];
this.dt = 0;
this.duration = 0;
this.speed = 0;
this.velocityX = 0;
this.velocityY = 0;
}
else if (phase === 'inertiastart') {
this.timeStamp = interaction.prevEvent.timeStamp;
this.dt = interaction.prevEvent.dt;
this.duration = interaction.prevEvent.duration;
this.speed = interaction.prevEvent.speed;
this.velocityX = interaction.prevEvent.velocityX;
this.velocityY = interaction.prevEvent.velocityY;
}
else {
this.timeStamp = new Date().getTime();
this.dt = this.timeStamp - interaction.prevEvent.timeStamp;
this.duration = this.timeStamp - interaction.downTimes[0];
if (event instanceof InteractEvent) {
var dx = this[sourceX] - interaction.prevEvent[sourceX],
dy = this[sourceY] - interaction.prevEvent[sourceY],
dt = this.dt / 1000;
this.speed = hypot(dx, dy) / dt;
this.velocityX = dx / dt;
this.velocityY = dy / dt;
}
// if normal move or end event, use previous user event coords
else {
// speed and velocity in pixels per second
this.speed = interaction.pointerDelta[deltaSource].speed;
this.velocityX = interaction.pointerDelta[deltaSource].vx;
this.velocityY = interaction.pointerDelta[deltaSource].vy;
}
}
if ((ending || phase === 'inertiastart')
&& interaction.prevEvent.speed > 600 && this.timeStamp - interaction.prevEvent.timeStamp < 150) {
var angle = 180 * Math.atan2(interaction.prevEvent.velocityY, interaction.prevEvent.velocityX) / Math.PI,
overlap = 22.5;
if (angle < 0) {
angle += 360;
}
var left = 135 - overlap <= angle && angle < 225 + overlap,
up = 225 - overlap <= angle && angle < 315 + overlap,
right = !left && (315 - overlap <= angle || angle < 45 + overlap),
down = !up && 45 - overlap <= angle && angle < 135 + overlap;
this.swipe = {
up : up,
down : down,
left : left,
right: right,
angle: angle,
speed: interaction.prevEvent.speed,
velocity: {
x: interaction.prevEvent.velocityX,
y: interaction.prevEvent.velocityY
}
};
}
}
InteractEvent.prototype = {
preventDefault: blank,
stopImmediatePropagation: function () {
this.immediatePropagationStopped = this.propagationStopped = true;
},
stopPropagation: function () {
this.propagationStopped = true;
}
};
function preventOriginalDefault () {
this.originalEvent.preventDefault();
}
function getActionCursor (action) {
var cursor = '';
if (action.name === 'drag') {
cursor = actionCursors.drag;
}
if (action.name === 'resize') {
if (action.axis) {
cursor = actionCursors[action.name + action.axis];
}
else if (action.edges) {
var cursorKey = 'resize',
edgeNames = ['top', 'bottom', 'left', 'right'];
for (var i = 0; i < 4; i++) {
if (action.edges[edgeNames[i]]) {
cursorKey += edgeNames[i];
}
}
cursor = actionCursors[cursorKey];
}
}
return cursor;
}
function checkResizeEdge (name, value, page, element, interactableElement, rect, margin) {
// false, '', undefined, null
if (!value) { return false; }
// true value, use pointer coords and element rect
if (value === true) {
// if dimensions are negative, "switch" edges
var width = isNumber(rect.width)? rect.width : rect.right - rect.left,
height = isNumber(rect.height)? rect.height : rect.bottom - rect.top;
if (width < 0) {
if (name === 'left' ) { name = 'right'; }
else if (name === 'right') { name = 'left' ; }
}
if (height < 0) {
if (name === 'top' ) { name = 'bottom'; }
else if (name === 'bottom') { name = 'top' ; }
}
if (name === 'left' ) { return page.x < ((width >= 0? rect.left: rect.right ) + margin); }
if (name === 'top' ) { return page.y < ((height >= 0? rect.top : rect.bottom) + margin); }
if (name === 'right' ) { return page.x > ((width >= 0? rect.right : rect.left) - margin); }
if (name === 'bottom') { return page.y > ((height >= 0? rect.bottom: rect.top ) - margin); }
}
// the remaining checks require an element
if (!isElement(element)) { return false; }
return isElement(value)
// the value is an element to use as a resize handle
? value === element
// otherwise check if element matches value as selector
: matchesUpTo(element, value, interactableElement);
}
function defaultActionChecker (pointer, interaction, element) {
var rect = this.getRect(element),
shouldResize = false,
action = null,
resizeAxes = null,
resizeEdges,
page = extend({}, interaction.curCoords.page),
options = this.options;
if (!rect) { return null; }
if (actionIsEnabled.resize && options.resize.enabled) {
var resizeOptions = options.resize;
resizeEdges = {
left: false, right: false, top: false, bottom: false
};
// if using resize.edges
if (isObject(resizeOptions.edges)) {
for (var edge in resizeEdges) {
resizeEdges[edge] = checkResizeEdge(edge,
resizeOptions.edges[edge],
page,
interaction._eventTarget,
element,
rect,
resizeOptions.margin || margin);
}
resizeEdges.left = resizeEdges.left && !resizeEdges.right;
resizeEdges.top = resizeEdges.top && !resizeEdges.bottom;
shouldResize = resizeEdges.left || resizeEdges.right || resizeEdges.top || resizeEdges.bottom;
}
else {
var right = options.resize.axis !== 'y' && page.x > (rect.right - margin),
bottom = options.resize.axis !== 'x' && page.y > (rect.bottom - margin);
shouldResize = right || bottom;
resizeAxes = (right? 'x' : '') + (bottom? 'y' : '');
}
}
action = shouldResize
? 'resize'
: actionIsEnabled.drag && options.drag.enabled
? 'drag'
: null;
if (actionIsEnabled.gesture
&& interaction.pointerIds.length >=2
&& !(interaction.dragging || interaction.resizing)) {
action = 'gesture';
}
if (action) {
return {
name: action,
axis: resizeAxes,
edges: resizeEdges
};
}
return null;
}
// Check if action is enabled globally and the current target supports it
// If so, return the validated action. Otherwise, return null
function validateAction (action, interactable) {
if (!isObject(action)) { return null; }
var actionName = action.name,
options = interactable.options;
if (( (actionName === 'resize' && options.resize.enabled )
|| (actionName === 'drag' && options.drag.enabled )
|| (actionName === 'gesture' && options.gesture.enabled))
&& actionIsEnabled[actionName]) {
if (actionName === 'resize' || actionName === 'resizeyx') {
actionName = 'resizexy';
}
return action;
}
return null;
}
var listeners = {},
interactionListeners = [
'dragStart', 'dragMove', 'resizeStart', 'resizeMove', 'gestureStart', 'gestureMove',
'pointerOver', 'pointerOut', 'pointerHover', 'selectorDown',
'pointerDown', 'pointerMove', 'pointerUp', 'pointerCancel', 'pointerEnd',
'addPointer', 'removePointer', 'recordPointer', 'autoScrollMove'
];
for (var i = 0, len = interactionListeners.length; i < len; i++) {
var name = interactionListeners[i];
listeners[name] = doOnInteractions(name);
}
// bound to the interactable context when a DOM event
// listener is added to a selector interactable
function delegateListener (event, useCapture) {
var fakeEvent = {},
delegated = delegatedEvents[event.type],
eventTarget = getActualElement(event.path
? event.path[0]
: event.target),
element = eventTarget;
useCapture = useCapture? true: false;
// duplicate the event so that currentTarget can be changed
for (var prop in event) {
fakeEvent[prop] = event[prop];
}
fakeEvent.originalEvent = event;
fakeEvent.preventDefault = preventOriginalDefault;
// climb up document tree looking for selector matches
while (isElement(element)) {
for (var i = 0; i < delegated.selectors.length; i++) {
var selector = delegated.selectors[i],
context = delegated.contexts[i];
if (matchesSelector(element, selector)
&& nodeContains(context, eventTarget)
&& nodeContains(context, element)) {
var listeners = delegated.listeners[i];
fakeEvent.currentTarget = element;
for (var j = 0; j < listeners.length; j++) {
if (listeners[j][1] === useCapture) {
listeners[j][0](fakeEvent);
}
}
}
}
element = parentElement(element);
}
}
function delegateUseCapture (event) {
return delegateListener.call(this, event, true);
}
interactables.indexOfElement = function indexOfElement (element, context) {
context = context || document;
for (var i = 0; i < this.length; i++) {
var interactable = this[i];
if ((interactable.selector === element
&& (interactable._context === context))
|| (!interactable.selector && interactable._element === element)) {
return i;
}
}
return -1;
};
interactables.get = function interactableGet (element, options) {
return this[this.indexOfElement(element, options && options.context)];
};
interactables.forEachSelector = function (callback) {
for (var i = 0; i < this.length; i++) {
var interactable = this[i];
if (!interactable.selector) {
continue;
}
var ret = callback(interactable, interactable.selector, interactable._context, i, this);
if (ret !== undefined) {
return ret;
}
}
};
/*\
* interact
[ method ]
*
* The methods of this variable can be used to set elements as
* interactables and also to change various default settings.
*
* Calling it as a function and passing an element or a valid CSS selector
* string returns an Interactable object which has various methods to
* configure it.
*
- element (Element | string) The HTML or SVG Element to interact with or CSS selector
= (object) An @Interactable
*
> Usage
| interact(document.getElementById('draggable')).draggable(true);
|
| var rectables = interact('rect');
| rectables
| .gesturable(true)
| .on('gesturemove', function (event) {
| // something cool...
| })
| .autoScroll(true);
\*/
function interact (element, options) {
return interactables.get(element, options) || new Interactable(element, options);
}
/*\
* Interactable
[ property ]
**
* Object type returned by @interact
\*/
function Interactable (element, options) {
this._element = element;
this._iEvents = this._iEvents || {};
var _window;
if (trySelector(element)) {
this.selector = element;
var context = options && options.context;
_window = context? getWindow(context) : window;
if (context && (_window.Node
? context instanceof _window.Node
: (isElement(context) || context === _window.document))) {
this._context = context;
}
}
else {
_window = getWindow(element);
if (isElement(element, _window)) {
if (supportsPointerEvent) {
events.add(this._element, pEventTypes.down, listeners.pointerDown );
events.add(this._element, pEventTypes.move, listeners.pointerHover);
}
else {
events.add(this._element, 'mousedown' , listeners.pointerDown );
events.add(this._element, 'mousemove' , listeners.pointerHover);
events.add(this._element, 'touchstart', listeners.pointerDown );
events.add(this._element, 'touchmove' , listeners.pointerHover);
}
}
}
this._doc = _window.document;
if (!contains(documents, this._doc)) {
listenToDocument(this._doc);
}
interactables.push(this);
this.set(options);
}
Interactable.prototype = {
setOnEvents: function (action, phases) {
if (action === 'drop') {
if (isFunction(phases.ondrop) ) { this.ondrop = phases.ondrop ; }
if (isFunction(phases.ondropactivate) ) { this.ondropactivate = phases.ondropactivate ; }
if (isFunction(phases.ondropdeactivate)) { this.ondropdeactivate = phases.ondropdeactivate; }
if (isFunction(phases.ondragenter) ) { this.ondragenter = phases.ondragenter ; }
if (isFunction(phases.ondragleave) ) { this.ondragleave = phases.ondragleave ; }
if (isFunction(phases.ondropmove) ) { this.ondropmove = phases.ondropmove ; }
}
else {
action = 'on' + action;
if (isFunction(phases.onstart) ) { this[action + 'start' ] = phases.onstart ; }
if (isFunction(phases.onmove) ) { this[action + 'move' ] = phases.onmove ; }
if (isFunction(phases.onend) ) { this[action + 'end' ] = phases.onend ; }
if (isFunction(phases.oninertiastart)) { this[action + 'inertiastart' ] = phases.oninertiastart ; }
}
return this;
},
/*\
* Interactable.draggable
[ method ]
*
* Gets or sets whether drag actions can be performed on the
* Interactable
*
= (boolean) Indicates if this can be the target of drag events
| var isDraggable = interact('ul li').draggable();
* or
- options (boolean | object) #optional true/false or An object with event listeners to be fired on drag events (object makes the Interactable draggable)
= (object) This Interactable
| interact(element).draggable({
| onstart: function (event) {},
| onmove : function (event) {},
| onend : function (event) {},
|
| // the axis in which the first movement must be
| // for the drag sequence to start
| // 'xy' by default - any direction
| axis: 'x' || 'y' || 'xy',
|
| // max number of drags that can happen concurrently
| // with elements of this Interactable. Infinity by default
| max: Infinity,
|
| // max number of drags that can target the same element+Interactable
| // 1 by default
| maxPerElement: 2
| });
\*/
draggable: function (options) {
if (isObject(options)) {
this.options.drag.enabled = options.enabled === false? false: true;
this.setPerAction('drag', options);
this.setOnEvents('drag', options);
if (/^x$|^y$|^xy$/.test(options.axis)) {
this.options.drag.axis = options.axis;
}
else if (options.axis === null) {
delete this.options.drag.axis;
}
return this;
}
if (isBool(options)) {
this.options.drag.enabled = options;
return this;
}
return this.options.drag;
},
setPerAction: function (action, options) {
// for all the default per-action options
for (var option in options) {
// if this option exists for this action
if (option in defaultOptions[action]) {
// if the option in the options arg is an object value
if (isObject(options[option])) {
// duplicate the object
this.options[action][option] = extend(this.options[action][option] || {}, options[option]);
if (isObject(defaultOptions.perAction[option]) && 'enabled' in defaultOptions.perAction[option]) {
this.options[action][option].enabled = options[option].enabled === false? false : true;
}
}
else if (isBool(options[option]) && isObject(defaultOptions.perAction[option])) {
this.options[action][option].enabled = options[option];
}
else if (options[option] !== undefined) {
// or if it's not undefined, do a plain assignment
this.options[action][option] = options[option];
}
}
}
},
/*\
* Interactable.dropzone
[ method ]
*
* Returns or sets whether elements can be dropped onto this
* Interactable to trigger drop events
*
* Dropzones can receive the following events:
* - `dropactivate` and `dropdeactivate` when an acceptable drag starts and ends
* - `dragenter` and `dragleave` when a draggable enters and leaves the dropzone
* - `dragmove` when a draggable that has entered the dropzone is moved
* - `drop` when a draggable is dropped into this dropzone
*
* Use the `accept` option to allow only elements that match the given CSS selector or element.
*
* Use the `overlap` option to set how drops are checked for. The allowed values are:
* - `'pointer'`, the pointer must be over the dropzone (default)
* - `'center'`, the draggable element's center must be over the dropzone
* - a number from 0-1 which is the `(intersection area) / (draggable area)`.
* e.g. `0.5` for drop to happen when half of the area of the
* draggable is over the dropzone
*
- options (boolean | object | null) #optional The new value to be set.
| interact('.drop').dropzone({
| accept: '.can-drop' || document.getElementById('single-drop'),
| overlap: 'pointer' || 'center' || zeroToOne
| }
= (boolean | object) The current setting or this Interactable
\*/
dropzone: function (options) {
if (isObject(options)) {
this.options.drop.enabled = options.enabled === false? false: true;
this.setOnEvents('drop', options);
if (/^(pointer|center)$/.test(options.overlap)) {
this.options.drop.overlap = options.overlap;
}
else if (isNumber(options.overlap)) {
this.options.drop.overlap = Math.max(Math.min(1, options.overlap), 0);
}
if ('accept' in options) {
this.options.drop.accept = options.accept;
}
if ('checker' in options) {
this.options.drop.checker = options.checker;
}
return this;
}
if (isBool(options)) {
this.options.drop.enabled = options;
return this;
}
return this.options.drop;
},
dropCheck: function (dragEvent, event, draggable, draggableElement, dropElement, rect) {
var dropped = false;
// if the dropzone has no rect (eg. display: none)
// call the custom dropChecker or just return false
if (!(rect = rect || this.getRect(dropElement))) {
return (this.options.drop.checker
? this.options.drop.checker(dragEvent, event, dropped, this, dropElement, draggable, draggableElement)
: false);
}
var dropOverlap = this.options.drop.overlap;
if (dropOverlap === 'pointer') {
var page = getPageXY(dragEvent),
origin = getOriginXY(draggable, draggableElement),
horizontal,
vertical;
page.x += origin.x;
page.y += origin.y;
horizontal = (page.x > rect.left) && (page.x < rect.right);
vertical = (page.y > rect.top ) && (page.y < rect.bottom);
dropped = horizontal && vertical;
}
var dragRect = draggable.getRect(draggableElement);
if (dropOverlap === 'center') {
var cx = dragRect.left + dragRect.width / 2,
cy = dragRect.top + dragRect.height / 2;
dropped = cx >= rect.left && cx <= rect.right && cy >= rect.top && cy <= rect.bottom;
}
if (isNumber(dropOverlap)) {
var overlapArea = (Math.max(0, Math.min(rect.right , dragRect.right ) - Math.max(rect.left, dragRect.left))
* Math.max(0, Math.min(rect.bottom, dragRect.bottom) - Math.max(rect.top , dragRect.top ))),
overlapRatio = overlapArea / (dragRect.width * dragRect.height);
dropped = overlapRatio >= dropOverlap;
}
if (this.options.drop.checker) {
dropped = this.options.drop.checker(dragEvent, event, dropped, this, dropElement, draggable, draggableElement);
}
return dropped;
},
/*\
* Interactable.dropChecker
[ method ]
*
* DEPRECATED. Use interactable.dropzone({ checker: function... }) instead.
*
* Gets or sets the function used to check if a dragged element is
* over this Interactable.
*
- checker (function) #optional The function that will be called when checking for a drop
= (Function | Interactable) The checker function or this Interactable
*
* The checker function takes the following arguments:
*
- dragEvent (InteractEvent) The related dragmove or dragend event
- event (TouchEvent | PointerEvent | MouseEvent) The user move/up/end Event related to the dragEvent
- dropped (boolean) The value from the default drop checker
- dropzone (Interactable) The dropzone interactable
- dropElement (Element) The dropzone element
- draggable (Interactable) The Interactable being dragged
- draggableElement (Element) The actual element that's being dragged
*
> Usage:
| interact(target)
| .dropChecker(function(dragEvent, // related dragmove or dragend event
| event, // TouchEvent/PointerEvent/MouseEvent
| dropped, // bool result of the default checker
| dropzone, // dropzone Interactable
| dropElement, // dropzone elemnt
| draggable, // draggable Interactable
| draggableElement) {// draggable element
|
| return dropped && event.target.hasAttribute('allow-drop');
| }
\*/
dropChecker: function (checker) {
if (isFunction(checker)) {
this.options.drop.checker = checker;
return this;
}
if (checker === null) {
delete this.options.getRect;
return this;
}
return this.options.drop.checker;
},
/*\
* Interactable.accept
[ method ]
*
* Deprecated. add an `accept` property to the options object passed to
* @Interactable.dropzone instead.
*
* Gets or sets the Element or CSS selector match that this
* Interactable accepts if it is a dropzone.
*
- newValue (Element | string | null) #optional
* If it is an Element, then only that element can be dropped into this dropzone.
* If it is a string, the element being dragged must match it as a selector.
* If it is null, the accept options is cleared - it accepts any element.
*
= (string | Element | null | Interactable) The current accept option if given `undefined` or this Interactable
\*/
accept: function (newValue) {
if (isElement(newValue)) {
this.options.drop.accept = newValue;
return this;
}
// test if it is a valid CSS selector
if (trySelector(newValue)) {
this.options.drop.accept = newValue;
return this;
}
if (newValue === null) {
delete this.options.drop.accept;
return this;
}
return this.options.drop.accept;
},
/*\
* Interactable.resizable
[ method ]
*
* Gets or sets whether resize actions can be performed on the
* Interactable
*
= (boolean) Indicates if this can be the target of resize elements
| var isResizeable = interact('input[type=text]').resizable();
* or
- options (boolean | object) #optional true/false or An object with event listeners to be fired on resize events (object makes the Interactable resizable)
= (object) This Interactable
| interact(element).resizable({
| onstart: function (event) {},
| onmove : function (event) {},
| onend : function (event) {},
|
| edges: {
| top : true, // Use pointer coords to check for resize.
| left : false, // Disable resizing from left edge.
| bottom: '.resize-s',// Resize if pointer target matches selector
| right : handleEl // Resize if pointer target is the given Element
| },
|
| // Width and height can be adjusted independently. When `true`, width and
| // height are adjusted at a 1:1 ratio.
| square: false,
|
| // Width and height can be adjusted independently. When `true`, width and
| // height maintain the aspect ratio they had when resizing started.
| preserveAspectRatio: false,
|
| // a value of 'none' will limit the resize rect to a minimum of 0x0
| // 'negate' will allow the rect to have negative width/height
| // 'reposition' will keep the width/height positive by swapping
| // the top and bottom edges and/or swapping the left and right edges
| invert: 'none' || 'negate' || 'reposition'
|
| // limit multiple resizes.
| // See the explanation in the @Interactable.draggable example
| max: Infinity,
| maxPerElement: 1,
| });
\*/
resizable: function (options) {
if (isObject(options)) {
this.options.resize.enabled = options.enabled === false? false: true;
this.setPerAction('resize', options);
this.setOnEvents('resize', options);
if (/^x$|^y$|^xy$/.test(options.axis)) {
this.options.resize.axis = options.axis;
}
else if (options.axis === null) {
this.options.resize.axis = defaultOptions.resize.axis;
}
if (isBool(options.preserveAspectRatio)) {
this.options.resize.preserveAspectRatio = options.preserveAspectRatio;
}
else if (isBool(options.square)) {
this.options.resize.square = options.square;
}
return this;
}
if (isBool(options)) {
this.options.resize.enabled = options;
return this;
}
return this.options.resize;
},
/*\
* Interactable.squareResize
[ method ]
*
* Deprecated. Add a `square: true || false` property to @Interactable.resizable instead
*
* Gets or sets whether resizing is forced 1:1 aspect
*
= (boolean) Current setting
*
* or
*
- newValue (boolean) #optional
= (object) this Interactable
\*/
squareResize: function (newValue) {
if (isBool(newValue)) {
this.options.resize.square = newValue;
return this;
}
if (newValue === null) {
delete this.options.resize.square;
return this;
}
return this.options.resize.square;
},
/*\
* Interactable.gesturable
[ method ]
*
* Gets or sets whether multitouch gestures can be performed on the
* Interactable's element
*
= (boolean) Indicates if this can be the target of gesture events
| var isGestureable = interact(element).gesturable();
* or
- options (boolean | object) #optional true/false or An object with event listeners to be fired on gesture events (makes the Interactable gesturable)
= (object) this Interactable
| interact(element).gesturable({
| onstart: function (event) {},
| onmove : function (event) {},
| onend : function (event) {},
|
| // limit multiple gestures.
| // See the explanation in @Interactable.draggable example
| max: Infinity,
| maxPerElement: 1,
| });
\*/
gesturable: function (options) {
if (isObject(options)) {
this.options.gesture.enabled = options.enabled === false? false: true;
this.setPerAction('gesture', options);
this.setOnEvents('gesture', options);
return this;
}
if (isBool(options)) {
this.options.gesture.enabled = options;
return this;
}
return this.options.gesture;
},
/*\
* Interactable.autoScroll
[ method ]
**
* Deprecated. Add an `autoscroll` property to the options object
* passed to @Interactable.draggable or @Interactable.resizable instead.
*
* Returns or sets whether dragging and resizing near the edges of the
* window/container trigger autoScroll for this Interactable
*
= (object) Object with autoScroll properties
*
* or
*
- options (object | boolean) #optional
* options can be:
* - an object with margin, distance and interval properties,
* - true or false to enable or disable autoScroll or
= (Interactable) this Interactable
\*/
autoScroll: function (options) {
if (isObject(options)) {
options = extend({ actions: ['drag', 'resize']}, options);
}
else if (isBool(options)) {
options = { actions: ['drag', 'resize'], enabled: options };
}
return this.setOptions('autoScroll', options);
},
/*\
* Interactable.snap
[ method ]
**
* Deprecated. Add a `snap` property to the options object passed
* to @Interactable.draggable or @Interactable.resizable instead.
*
* Returns or sets if and how action coordinates are snapped. By
* default, snapping is relative to the pointer coordinates. You can
* change this by setting the
* [`elementOrigin`](https://github.com/taye/interact.js/pull/72).
**
= (boolean | object) `false` if snap is disabled; object with snap properties if snap is enabled
**
* or
**
- options (object | boolean | null) #optional
= (Interactable) this Interactable
> Usage
| interact(document.querySelector('#thing')).snap({
| targets: [
| // snap to this specific point
| {
| x: 100,
| y: 100,
| range: 25
| },
| // give this function the x and y page coords and snap to the object returned
| function (x, y) {
| return {
| x: x,
| y: (75 + 50 * Math.sin(x * 0.04)),
| range: 40
| };
| },
| // create a function that snaps to a grid
| interact.createSnapGrid({
| x: 50,
| y: 50,
| range: 10, // optional
| offset: { x: 5, y: 10 } // optional
| })
| ],
| // do not snap during normal movement.
| // Instead, trigger only one snapped move event
| // immediately before the end event.
| endOnly: true,
|
| relativePoints: [
| { x: 0, y: 0 }, // snap relative to the top left of the element
| { x: 1, y: 1 }, // and also to the bottom right
| ],
|
| // offset the snap target coordinates
| // can be an object with x/y or 'startCoords'
| offset: { x: 50, y: 50 }
| }
| });
\*/
snap: function (options) {
var ret = this.setOptions('snap', options);
if (ret === this) { return this; }
return ret.drag;
},
setOptions: function (option, options) {
var actions = options && isArray(options.actions)
? options.actions
: ['drag'];
var i;
if (isObject(options) || isBool(options)) {
for (i = 0; i < actions.length; i++) {
var action = /resize/.test(actions[i])? 'resize' : actions[i];
if (!isObject(this.options[action])) { continue; }
var thisOption = this.options[action][option];
if (isObject(options)) {
extend(thisOption, options);
thisOption.enabled = options.enabled === false? false: true;
if (option === 'snap') {
if (thisOption.mode === 'grid') {
thisOption.targets = [
interact.createSnapGrid(extend({
offset: thisOption.gridOffset || { x: 0, y: 0 }
}, thisOption.grid || {}))
];
}
else if (thisOption.mode === 'anchor') {
thisOption.targets = thisOption.anchors;
}
else if (thisOption.mode === 'path') {
thisOption.targets = thisOption.paths;
}
if ('elementOrigin' in options) {
thisOption.relativePoints = [options.elementOrigin];
}
}
}
else if (isBool(options)) {
thisOption.enabled = options;
}
}
return this;
}
var ret = {},
allActions = ['drag', 'resize', 'gesture'];
for (i = 0; i < allActions.length; i++) {
if (option in defaultOptions[allActions[i]]) {
ret[allActions[i]] = this.options[allActions[i]][option];
}
}
return ret;
},
/*\
* Interactable.inertia
[ method ]
**
* Deprecated. Add an `inertia` property to the options object passed
* to @Interactable.draggable or @Interactable.resizable instead.
*
* Returns or sets if and how events continue to run after the pointer is released
**
= (boolean | object) `false` if inertia is disabled; `object` with inertia properties if inertia is enabled
**
* or
**
- options (object | boolean | null) #optional
= (Interactable) this Interactable
> Usage
| // enable and use default settings
| interact(element).inertia(true);
|
| // enable and use custom settings
| interact(element).inertia({
| // value greater than 0
| // high values slow the object down more quickly
| resistance : 16,
|
| // the minimum launch speed (pixels per second) that results in inertia start
| minSpeed : 200,
|
| // inertia will stop when the object slows down to this speed
| endSpeed : 20,
|
| // boolean; should actions be resumed when the pointer goes down during inertia
| allowResume : true,
|
| // boolean; should the jump when resuming from inertia be ignored in event.dx/dy
| zeroResumeDelta: false,
|
| // if snap/restrict are set to be endOnly and inertia is enabled, releasing
| // the pointer without triggering inertia will animate from the release
| // point to the snaped/restricted point in the given amount of time (ms)
| smoothEndDuration: 300,
|
| // an array of action types that can have inertia (no gesture)
| actions : ['drag', 'resize']
| });
|
| // reset custom settings and use all defaults
| interact(element).inertia(null);
\*/
inertia: function (options) {
var ret = this.setOptions('inertia', options);
if (ret === this) { return this; }
return ret.drag;
},
getAction: function (pointer, event, interaction, element) {
var action = this.defaultActionChecker(pointer, interaction, element);
if (this.options.actionChecker) {
return this.options.actionChecker(pointer, event, action, this, element, interaction);
}
return action;
},
defaultActionChecker: defaultActionChecker,
/*\
* Interactable.actionChecker
[ method ]
*
* Gets or sets the function used to check action to be performed on
* pointerDown
*
- checker (function | null) #optional A function which takes a pointer event, defaultAction string, interactable, element and interaction as parameters and returns an object with name property 'drag' 'resize' or 'gesture' and optionally an `edges` object with boolean 'top', 'left', 'bottom' and right props.
= (Function | Interactable) The checker function or this Interactable
*
| interact('.resize-drag')
| .resizable(true)
| .draggable(true)
| .actionChecker(function (pointer, event, action, interactable, element, interaction) {
|
| if (interact.matchesSelector(event.target, '.drag-handle') {
| // force drag with handle target
| action.name = drag;
| }
| else {
| // resize from the top and right edges
| action.name = 'resize';
| action.edges = { top: true, right: true };
| }
|
| return action;
| });
\*/
actionChecker: function (checker) {
if (isFunction(checker)) {
this.options.actionChecker = checker;
return this;
}
if (checker === null) {
delete this.options.actionChecker;
return this;
}
return this.options.actionChecker;
},
/*\
* Interactable.getRect
[ method ]
*
* The default function to get an Interactables bounding rect. Can be
* overridden using @Interactable.rectChecker.
*
- element (Element) #optional The element to measure.
= (object) The object's bounding rectangle.
o {
o top : 0,
o left : 0,
o bottom: 0,
o right : 0,
o width : 0,
o height: 0
o }
\*/
getRect: function rectCheck (element) {
element = element || this._element;
if (this.selector && !(isElement(element))) {
element = this._context.querySelector(this.selector);
}
return getElementRect(element);
},
/*\
* Interactable.rectChecker
[ method ]
*
* Returns or sets the function used to calculate the interactable's
* element's rectangle
*
- checker (function) #optional A function which returns this Interactable's bounding rectangle. See @Interactable.getRect
= (function | object) The checker function or this Interactable
\*/
rectChecker: function (checker) {
if (isFunction(checker)) {
this.getRect = checker;
return this;
}
if (checker === null) {
delete this.options.getRect;
return this;
}
return this.getRect;
},
/*\
* Interactable.styleCursor
[ method ]
*
* Returns or sets whether the action that would be performed when the
* mouse on the element are checked on `mousemove` so that the cursor
* may be styled appropriately
*
- newValue (boolean) #optional
= (boolean | Interactable) The current setting or this Interactable
\*/
styleCursor: function (newValue) {
if (isBool(newValue)) {
this.options.styleCursor = newValue;
return this;
}
if (newValue === null) {
delete this.options.styleCursor;
return this;
}
return this.options.styleCursor;
},
/*\
* Interactable.preventDefault
[ method ]
*
* Returns or sets whether to prevent the browser's default behaviour
* in response to pointer events. Can be set to:
* - `'always'` to always prevent
* - `'never'` to never prevent
* - `'auto'` to let interact.js try to determine what would be best
*
- newValue (string) #optional `true`, `false` or `'auto'`
= (string | Interactable) The current setting or this Interactable
\*/
preventDefault: function (newValue) {
if (/^(always|never|auto)$/.test(newValue)) {
this.options.preventDefault = newValue;
return this;
}
if (isBool(newValue)) {
this.options.preventDefault = newValue? 'always' : 'never';
return this;
}
return this.options.preventDefault;
},
/*\
* Interactable.origin
[ method ]
*
* Gets or sets the origin of the Interactable's element. The x and y
* of the origin will be subtracted from action event coordinates.
*
- origin (object | string) #optional An object eg. { x: 0, y: 0 } or string 'parent', 'self' or any CSS selector
* OR
- origin (Element) #optional An HTML or SVG Element whose rect will be used
**
= (object) The current origin or this Interactable
\*/
origin: function (newValue) {
if (trySelector(newValue)) {
this.options.origin = newValue;
return this;
}
else if (isObject(newValue)) {
this.options.origin = newValue;
return this;
}
return this.options.origin;
},
/*\
* Interactable.deltaSource
[ method ]
*
* Returns or sets the mouse coordinate types used to calculate the
* movement of the pointer.
*
- newValue (string) #optional Use 'client' if you will be scrolling while interacting; Use 'page' if you want autoScroll to work
= (string | object) The current deltaSource or this Interactable
\*/
deltaSource: function (newValue) {
if (newValue === 'page' || newValue === 'client') {
this.options.deltaSource = newValue;
return this;
}
return this.options.deltaSource;
},
/*\
* Interactable.restrict
[ method ]
**
* Deprecated. Add a `restrict` property to the options object passed to
* @Interactable.draggable, @Interactable.resizable or @Interactable.gesturable instead.
*
* Returns or sets the rectangles within which actions on this
* interactable (after snap calculations) are restricted. By default,
* restricting is relative to the pointer coordinates. You can change
* this by setting the
* [`elementRect`](https://github.com/taye/interact.js/pull/72).
**
- options (object) #optional an object with keys drag, resize, and/or gesture whose values are rects, Elements, CSS selectors, or 'parent' or 'self'
= (object) The current restrictions object or this Interactable
**
| interact(element).restrict({
| // the rect will be `interact.getElementRect(element.parentNode)`
| drag: element.parentNode,
|
| // x and y are relative to the the interactable's origin
| resize: { x: 100, y: 100, width: 200, height: 200 }
| })
|
| interact('.draggable').restrict({
| // the rect will be the selected element's parent
| drag: 'parent',
|
| // do not restrict during normal movement.
| // Instead, trigger only one restricted move event
| // immediately before the end event.
| endOnly: true,
|
| // https://github.com/taye/interact.js/pull/72#issue-41813493
| elementRect: { top: 0, left: 0, bottom: 1, right: 1 }
| });
\*/
restrict: function (options) {
if (!isObject(options)) {
return this.setOptions('restrict', options);
}
var actions = ['drag', 'resize', 'gesture'],
ret;
for (var i = 0; i < actions.length; i++) {
var action = actions[i];
if (action in options) {
var perAction = extend({
actions: [action],
restriction: options[action]
}, options);
ret = this.setOptions('restrict', perAction);
}
}
return ret;
},
/*\
* Interactable.context
[ method ]
*
* Gets the selector context Node of the Interactable. The default is `window.document`.
*
= (Node) The context Node of this Interactable
**
\*/
context: function () {
return this._context;
},
_context: document,
/*\
* Interactable.ignoreFrom
[ method ]
*
* If the target of the `mousedown`, `pointerdown` or `touchstart`
* event or any of it's parents match the given CSS selector or
* Element, no drag/resize/gesture is started.
*
- newValue (string | Element | null) #optional a CSS selector string, an Element or `null` to not ignore any elements
= (string | Element | object) The current ignoreFrom value or this Interactable
**
| interact(element, { ignoreFrom: document.getElementById('no-action') });
| // or
| interact(element).ignoreFrom('input, textarea, a');
\*/
ignoreFrom: function (newValue) {
if (trySelector(newValue)) { // CSS selector to match event.target
this.options.ignoreFrom = newValue;
return this;
}
if (isElement(newValue)) { // specific element
this.options.ignoreFrom = newValue;
return this;
}
return this.options.ignoreFrom;
},
/*\
* Interactable.allowFrom
[ method ]
*
* A drag/resize/gesture is started only If the target of the
* `mousedown`, `pointerdown` or `touchstart` event or any of it's
* parents match the given CSS selector or Element.
*
- newValue (string | Element | null) #optional a CSS selector string, an Element or `null` to allow from any element
= (string | Element | object) The current allowFrom value or this Interactable
**
| interact(element, { allowFrom: document.getElementById('drag-handle') });
| // or
| interact(element).allowFrom('.handle');
\*/
allowFrom: function (newValue) {
if (trySelector(newValue)) { // CSS selector to match event.target
this.options.allowFrom = newValue;
return this;
}
if (isElement(newValue)) { // specific element
this.options.allowFrom = newValue;
return this;
}
return this.options.allowFrom;
},
/*\
* Interactable.element
[ method ]
*
* If this is not a selector Interactable, it returns the element this
* interactable represents
*
= (Element) HTML / SVG Element
\*/
element: function () {
return this._element;
},
/*\
* Interactable.fire
[ method ]
*
* Calls listeners for the given InteractEvent type bound globally
* and directly to this Interactable
*
- iEvent (InteractEvent) The InteractEvent object to be fired on this Interactable
= (Interactable) this Interactable
\*/
fire: function (iEvent) {
if (!(iEvent && iEvent.type) || !contains(eventTypes, iEvent.type)) {
return this;
}
var listeners,
i,
len,
onEvent = 'on' + iEvent.type,
funcName = '';
// Interactable#on() listeners
if (iEvent.type in this._iEvents) {
listeners = this._iEvents[iEvent.type];
for (i = 0, len = listeners.length; i < len && !iEvent.immediatePropagationStopped; i++) {
funcName = listeners[i].name;
listeners[i](iEvent);
}
}
// interactable.onevent listener
if (isFunction(this[onEvent])) {
funcName = this[onEvent].name;
this[onEvent](iEvent);
}
// interact.on() listeners
if (iEvent.type in globalEvents && (listeners = globalEvents[iEvent.type])) {
for (i = 0, len = listeners.length; i < len && !iEvent.immediatePropagationStopped; i++) {
funcName = listeners[i].name;
listeners[i](iEvent);
}
}
return this;
},
/*\
* Interactable.on
[ method ]
*
* Binds a listener for an InteractEvent or DOM event.
*
- eventType (string | array | object) The types of events to listen for
- listener (function) The function to be called on the given event(s)
- useCapture (boolean) #optional useCapture flag for addEventListener
= (object) This Interactable
\*/
on: function (eventType, listener, useCapture) {
var i;
if (isString(eventType) && eventType.search(' ') !== -1) {
eventType = eventType.trim().split(/ +/);
}
if (isArray(eventType)) {
for (i = 0; i < eventType.length; i++) {
this.on(eventType[i], listener, useCapture);
}
return this;
}
if (isObject(eventType)) {
for (var prop in eventType) {
this.on(prop, eventType[prop], listener);
}
return this;
}
if (eventType === 'wheel') {
eventType = wheelEvent;
}
// convert to boolean
useCapture = useCapture? true: false;
if (contains(eventTypes, eventType)) {
// if this type of event was never bound to this Interactable
if (!(eventType in this._iEvents)) {
this._iEvents[eventType] = [listener];
}
else {
this._iEvents[eventType].push(listener);
}
}
// delegated event for selector
else if (this.selector) {
if (!delegatedEvents[eventType]) {
delegatedEvents[eventType] = {
selectors: [],
contexts : [],
listeners: []
};
// add delegate listener functions
for (i = 0; i < documents.length; i++) {
events.add(documents[i], eventType, delegateListener);
events.add(documents[i], eventType, delegateUseCapture, true);
}
}
var delegated = delegatedEvents[eventType],
index;
for (index = delegated.selectors.length - 1; index >= 0; index--) {
if (delegated.selectors[index] === this.selector
&& delegated.contexts[index] === this._context) {
break;
}
}
if (index === -1) {
index = delegated.selectors.length;
delegated.selectors.push(this.selector);
delegated.contexts .push(this._context);
delegated.listeners.push([]);
}
// keep listener and useCapture flag
delegated.listeners[index].push([listener, useCapture]);
}
else {
events.add(this._element, eventType, listener, useCapture);
}
return this;
},
/*\
* Interactable.off
[ method ]
*
* Removes an InteractEvent or DOM event listener
*
- eventType (string | array | object) The types of events that were listened for
- listener (function) The listener function to be removed
- useCapture (boolean) #optional useCapture flag for removeEventListener
= (object) This Interactable
\*/
off: function (eventType, listener, useCapture) {
var i;
if (isString(eventType) && eventType.search(' ') !== -1) {
eventType = eventType.trim().split(/ +/);
}
if (isArray(eventType)) {
for (i = 0; i < eventType.length; i++) {
this.off(eventType[i], listener, useCapture);
}
return this;
}
if (isObject(eventType)) {
for (var prop in eventType) {
this.off(prop, eventType[prop], listener);
}
return this;
}
var eventList,
index = -1;
// convert to boolean
useCapture = useCapture? true: false;
if (eventType === 'wheel') {
eventType = wheelEvent;
}
// if it is an action event type
if (contains(eventTypes, eventType)) {
eventList = this._iEvents[eventType];
if (eventList && (index = indexOf(eventList, listener)) !== -1) {
this._iEvents[eventType].splice(index, 1);
}
}
// delegated event
else if (this.selector) {
var delegated = delegatedEvents[eventType],
matchFound = false;
if (!delegated) { return this; }
// count from last index of delegated to 0
for (index = delegated.selectors.length - 1; index >= 0; index--) {
// look for matching selector and context Node
if (delegated.selectors[index] === this.selector
&& delegated.contexts[index] === this._context) {
var listeners = delegated.listeners[index];
// each item of the listeners array is an array: [function, useCaptureFlag]
for (i = listeners.length - 1; i >= 0; i--) {
var fn = listeners[i][0],
useCap = listeners[i][1];
// check if the listener functions and useCapture flags match
if (fn === listener && useCap === useCapture) {
// remove the listener from the array of listeners
listeners.splice(i, 1);
// if all listeners for this interactable have been removed
// remove the interactable from the delegated arrays
if (!listeners.length) {
delegated.selectors.splice(index, 1);
delegated.contexts .splice(index, 1);
delegated.listeners.splice(index, 1);
// remove delegate function from context
events.remove(this._context, eventType, delegateListener);
events.remove(this._context, eventType, delegateUseCapture, true);
// remove the arrays if they are empty
if (!delegated.selectors.length) {
delegatedEvents[eventType] = null;
}
}
// only remove one listener
matchFound = true;
break;
}
}
if (matchFound) { break; }
}
}
}
// remove listener from this Interatable's element
else {
events.remove(this._element, eventType, listener, useCapture);
}
return this;
},
/*\
* Interactable.set
[ method ]
*
* Reset the options of this Interactable
- options (object) The new settings to apply
= (object) This Interactable
\*/
set: function (options) {
if (!isObject(options)) {
options = {};
}
this.options = extend({}, defaultOptions.base);
var i,
actions = ['drag', 'drop', 'resize', 'gesture'],
methods = ['draggable', 'dropzone', 'resizable', 'gesturable'],
perActions = extend(extend({}, defaultOptions.perAction), options[action] || {});
for (i = 0; i < actions.length; i++) {
var action = actions[i];
this.options[action] = extend({}, defaultOptions[action]);
this.setPerAction(action, perActions);
this[methods[i]](options[action]);
}
var settings = [
'accept', 'actionChecker', 'allowFrom', 'deltaSource',
'dropChecker', 'ignoreFrom', 'origin', 'preventDefault',
'rectChecker', 'styleCursor'
];
for (i = 0, len = settings.length; i < len; i++) {
var setting = settings[i];
this.options[setting] = defaultOptions.base[setting];
if (setting in options) {
this[setting](options[setting]);
}
}
return this;
},
/*\
* Interactable.unset
[ method ]
*
* Remove this interactable from the list of interactables and remove
* it's drag, drop, resize and gesture capabilities
*
= (object) @interact
\*/
unset: function () {
events.remove(this._element, 'all');
if (!isString(this.selector)) {
events.remove(this, 'all');
if (this.options.styleCursor) {
this._element.style.cursor = '';
}
}
else {
// remove delegated events
for (var type in delegatedEvents) {
var delegated = delegatedEvents[type];
for (var i = 0; i < delegated.selectors.length; i++) {
if (delegated.selectors[i] === this.selector
&& delegated.contexts[i] === this._context) {
delegated.selectors.splice(i, 1);
delegated.contexts .splice(i, 1);
delegated.listeners.splice(i, 1);
// remove the arrays if they are empty
if (!delegated.selectors.length) {
delegatedEvents[type] = null;
}
}
events.remove(this._context, type, delegateListener);
events.remove(this._context, type, delegateUseCapture, true);
break;
}
}
}
this.dropzone(false);
interactables.splice(indexOf(interactables, this), 1);
return interact;
}
};
function warnOnce (method, message) {
var warned = false;
return function () {
if (!warned) {
window.console.warn(message);
warned = true;
}
return method.apply(this, arguments);
};
}
Interactable.prototype.snap = warnOnce(Interactable.prototype.snap,
'Interactable#snap is deprecated. See the new documentation for snapping at http://interactjs.io/docs/snapping');
Interactable.prototype.restrict = warnOnce(Interactable.prototype.restrict,
'Interactable#restrict is deprecated. See the new documentation for resticting at http://interactjs.io/docs/restriction');
Interactable.prototype.inertia = warnOnce(Interactable.prototype.inertia,
'Interactable#inertia is deprecated. See the new documentation for inertia at http://interactjs.io/docs/inertia');
Interactable.prototype.autoScroll = warnOnce(Interactable.prototype.autoScroll,
'Interactable#autoScroll is deprecated. See the new documentation for autoScroll at http://interactjs.io/docs/#autoscroll');
Interactable.prototype.squareResize = warnOnce(Interactable.prototype.squareResize,
'Interactable#squareResize is deprecated. See http://interactjs.io/docs/#resize-square');
Interactable.prototype.accept = warnOnce(Interactable.prototype.accept,
'Interactable#accept is deprecated. use Interactable#dropzone({ accept: target }) instead');
Interactable.prototype.dropChecker = warnOnce(Interactable.prototype.dropChecker,
'Interactable#dropChecker is deprecated. use Interactable#dropzone({ dropChecker: checkerFunction }) instead');
Interactable.prototype.context = warnOnce(Interactable.prototype.context,
'Interactable#context as a method is deprecated. It will soon be a DOM Node instead');
/*\
* interact.isSet
[ method ]
*
* Check if an element has been set
- element (Element) The Element being searched for
= (boolean) Indicates if the element or CSS selector was previously passed to interact
\*/
interact.isSet = function(element, options) {
return interactables.indexOfElement(element, options && options.context) !== -1;
};
/*\
* interact.on
[ method ]
*
* Adds a global listener for an InteractEvent or adds a DOM event to
* `document`
*
- type (string | array | object) The types of events to listen for
- listener (function) The function to be called on the given event(s)
- useCapture (boolean) #optional useCapture flag for addEventListener
= (object) interact
\*/
interact.on = function (type, listener, useCapture) {
if (isString(type) && type.search(' ') !== -1) {
type = type.trim().split(/ +/);
}
if (isArray(type)) {
for (var i = 0; i < type.length; i++) {
interact.on(type[i], listener, useCapture);
}
return interact;
}
if (isObject(type)) {
for (var prop in type) {
interact.on(prop, type[prop], listener);
}
return interact;
}
// if it is an InteractEvent type, add listener to globalEvents
if (contains(eventTypes, type)) {
// if this type of event was never bound
if (!globalEvents[type]) {
globalEvents[type] = [listener];
}
else {
globalEvents[type].push(listener);
}
}
// If non InteractEvent type, addEventListener to document
else {
events.add(document, type, listener, useCapture);
}
return interact;
};
/*\
* interact.off
[ method ]
*
* Removes a global InteractEvent listener or DOM event from `document`
*
- type (string | array | object) The types of events that were listened for
- listener (function) The listener function to be removed
- useCapture (boolean) #optional useCapture flag for removeEventListener
= (object) interact
\*/
interact.off = function (type, listener, useCapture) {
if (isString(type) && type.search(' ') !== -1) {
type = type.trim().split(/ +/);
}
if (isArray(type)) {
for (var i = 0; i < type.length; i++) {
interact.off(type[i], listener, useCapture);
}
return interact;
}
if (isObject(type)) {
for (var prop in type) {
interact.off(prop, type[prop], listener);
}
return interact;
}
if (!contains(eventTypes, type)) {
events.remove(document, type, listener, useCapture);
}
else {
var index;
if (type in globalEvents
&& (index = indexOf(globalEvents[type], listener)) !== -1) {
globalEvents[type].splice(index, 1);
}
}
return interact;
};
/*\
* interact.enableDragging
[ method ]
*
* Deprecated.
*
* Returns or sets whether dragging is enabled for any Interactables
*
- newValue (boolean) #optional `true` to allow the action; `false` to disable action for all Interactables
= (boolean | object) The current setting or interact
\*/
interact.enableDragging = warnOnce(function (newValue) {
if (newValue !== null && newValue !== undefined) {
actionIsEnabled.drag = newValue;
return interact;
}
return actionIsEnabled.drag;
}, 'interact.enableDragging is deprecated and will soon be removed.');
/*\
* interact.enableResizing
[ method ]
*
* Deprecated.
*
* Returns or sets whether resizing is enabled for any Interactables
*
- newValue (boolean) #optional `true` to allow the action; `false` to disable action for all Interactables
= (boolean | object) The current setting or interact
\*/
interact.enableResizing = warnOnce(function (newValue) {
if (newValue !== null && newValue !== undefined) {
actionIsEnabled.resize = newValue;
return interact;
}
return actionIsEnabled.resize;
}, 'interact.enableResizing is deprecated and will soon be removed.');
/*\
* interact.enableGesturing
[ method ]
*
* Deprecated.
*
* Returns or sets whether gesturing is enabled for any Interactables
*
- newValue (boolean) #optional `true` to allow the action; `false` to disable action for all Interactables
= (boolean | object) The current setting or interact
\*/
interact.enableGesturing = warnOnce(function (newValue) {
if (newValue !== null && newValue !== undefined) {
actionIsEnabled.gesture = newValue;
return interact;
}
return actionIsEnabled.gesture;
}, 'interact.enableGesturing is deprecated and will soon be removed.');
interact.eventTypes = eventTypes;
/*\
* interact.debug
[ method ]
*
* Returns debugging data
= (object) An object with properties that outline the current state and expose internal functions and variables
\*/
interact.debug = function () {
var interaction = interactions[0] || new Interaction();
return {
interactions : interactions,
target : interaction.target,
dragging : interaction.dragging,
resizing : interaction.resizing,
gesturing : interaction.gesturing,
prepared : interaction.prepared,
matches : interaction.matches,
matchElements : interaction.matchElements,
prevCoords : interaction.prevCoords,
startCoords : interaction.startCoords,
pointerIds : interaction.pointerIds,
pointers : interaction.pointers,
addPointer : listeners.addPointer,
removePointer : listeners.removePointer,
recordPointer : listeners.recordPointer,
snap : interaction.snapStatus,
restrict : interaction.restrictStatus,
inertia : interaction.inertiaStatus,
downTime : interaction.downTimes[0],
downEvent : interaction.downEvent,
downPointer : interaction.downPointer,
prevEvent : interaction.prevEvent,
Interactable : Interactable,
interactables : interactables,
pointerIsDown : interaction.pointerIsDown,
defaultOptions : defaultOptions,
defaultActionChecker : defaultActionChecker,
actionCursors : actionCursors,
dragMove : listeners.dragMove,
resizeMove : listeners.resizeMove,
gestureMove : listeners.gestureMove,
pointerUp : listeners.pointerUp,
pointerDown : listeners.pointerDown,
pointerMove : listeners.pointerMove,
pointerHover : listeners.pointerHover,
eventTypes : eventTypes,
events : events,
globalEvents : globalEvents,
delegatedEvents : delegatedEvents,
prefixedPropREs : prefixedPropREs
};
};
// expose the functions used to calculate multi-touch properties
interact.getPointerAverage = pointerAverage;
interact.getTouchBBox = touchBBox;
interact.getTouchDistance = touchDistance;
interact.getTouchAngle = touchAngle;
interact.getElementRect = getElementRect;
interact.getElementClientRect = getElementClientRect;
interact.matchesSelector = matchesSelector;
interact.closest = closest;
/*\
* interact.margin
[ method ]
*
* Deprecated. Use `interact(target).resizable({ margin: number });` instead.
* Returns or sets the margin for autocheck resizing used in
* @Interactable.getAction. That is the distance from the bottom and right
* edges of an element clicking in which will start resizing
*
- newValue (number) #optional
= (number | interact) The current margin value or interact
\*/
interact.margin = warnOnce(function (newvalue) {
if (isNumber(newvalue)) {
margin = newvalue;
return interact;
}
return margin;
},
'interact.margin is deprecated. Use interact(target).resizable({ margin: number }); instead.') ;
/*\
* interact.supportsTouch
[ method ]
*
= (boolean) Whether or not the browser supports touch input
\*/
interact.supportsTouch = function () {
return supportsTouch;
};
/*\
* interact.supportsPointerEvent
[ method ]
*
= (boolean) Whether or not the browser supports PointerEvents
\*/
interact.supportsPointerEvent = function () {
return supportsPointerEvent;
};
/*\
* interact.stop
[ method ]
*
* Cancels all interactions (end events are not fired)
*
- event (Event) An event on which to call preventDefault()
= (object) interact
\*/
interact.stop = function (event) {
for (var i = interactions.length - 1; i >= 0; i--) {
interactions[i].stop(event);
}
return interact;
};
/*\
* interact.dynamicDrop
[ method ]
*
* Returns or sets whether the dimensions of dropzone elements are
* calculated on every dragmove or only on dragstart for the default
* dropChecker
*
- newValue (boolean) #optional True to check on each move. False to check only before start
= (boolean | interact) The current setting or interact
\*/
interact.dynamicDrop = function (newValue) {
if (isBool(newValue)) {
//if (dragging && dynamicDrop !== newValue && !newValue) {
//calcRects(dropzones);
//}
dynamicDrop = newValue;
return interact;
}
return dynamicDrop;
};
/*\
* interact.pointerMoveTolerance
[ method ]
* Returns or sets the distance the pointer must be moved before an action
* sequence occurs. This also affects tolerance for tap events.
*
- newValue (number) #optional The movement from the start position must be greater than this value
= (number | Interactable) The current setting or interact
\*/
interact.pointerMoveTolerance = function (newValue) {
if (isNumber(newValue)) {
pointerMoveTolerance = newValue;
return this;
}
return pointerMoveTolerance;
};
/*\
* interact.maxInteractions
[ method ]
**
* Returns or sets the maximum number of concurrent interactions allowed.
* By default only 1 interaction is allowed at a time (for backwards
* compatibility). To allow multiple interactions on the same Interactables
* and elements, you need to enable it in the draggable, resizable and
* gesturable `'max'` and `'maxPerElement'` options.
**
- newValue (number) #optional Any number. newValue <= 0 means no interactions.
\*/
interact.maxInteractions = function (newValue) {
if (isNumber(newValue)) {
maxInteractions = newValue;
return this;
}
return maxInteractions;
};
interact.createSnapGrid = function (grid) {
return function (x, y) {
var offsetX = 0,
offsetY = 0;
if (isObject(grid.offset)) {
offsetX = grid.offset.x;
offsetY = grid.offset.y;
}
var gridx = Math.round((x - offsetX) / grid.x),
gridy = Math.round((y - offsetY) / grid.y),
newX = gridx * grid.x + offsetX,
newY = gridy * grid.y + offsetY;
return {
x: newX,
y: newY,
range: grid.range
};
};
};
function endAllInteractions (event) {
for (var i = 0; i < interactions.length; i++) {
interactions[i].pointerEnd(event, event);
}
}
function listenToDocument (doc) {
if (contains(documents, doc)) { return; }
var win = doc.defaultView || doc.parentWindow;
// add delegate event listener
for (var eventType in delegatedEvents) {
events.add(doc, eventType, delegateListener);
events.add(doc, eventType, delegateUseCapture, true);
}
if (supportsPointerEvent) {
if (PointerEvent === win.MSPointerEvent) {
pEventTypes = {
up: 'MSPointerUp', down: 'MSPointerDown', over: 'mouseover',
out: 'mouseout', move: 'MSPointerMove', cancel: 'MSPointerCancel' };
}
else {
pEventTypes = {
up: 'pointerup', down: 'pointerdown', over: 'pointerover',
out: 'pointerout', move: 'pointermove', cancel: 'pointercancel' };
}
events.add(doc, pEventTypes.down , listeners.selectorDown );
events.add(doc, pEventTypes.move , listeners.pointerMove );
events.add(doc, pEventTypes.over , listeners.pointerOver );
events.add(doc, pEventTypes.out , listeners.pointerOut );
events.add(doc, pEventTypes.up , listeners.pointerUp );
events.add(doc, pEventTypes.cancel, listeners.pointerCancel);
// autoscroll
events.add(doc, pEventTypes.move, listeners.autoScrollMove);
}
else {
events.add(doc, 'mousedown', listeners.selectorDown);
events.add(doc, 'mousemove', listeners.pointerMove );
events.add(doc, 'mouseup' , listeners.pointerUp );
events.add(doc, 'mouseover', listeners.pointerOver );
events.add(doc, 'mouseout' , listeners.pointerOut );
events.add(doc, 'touchstart' , listeners.selectorDown );
events.add(doc, 'touchmove' , listeners.pointerMove );
events.add(doc, 'touchend' , listeners.pointerUp );
events.add(doc, 'touchcancel', listeners.pointerCancel);
// autoscroll
events.add(doc, 'mousemove', listeners.autoScrollMove);
events.add(doc, 'touchmove', listeners.autoScrollMove);
}
events.add(win, 'blur', endAllInteractions);
try {
if (win.frameElement) {
var parentDoc = win.frameElement.ownerDocument,
parentWindow = parentDoc.defaultView;
events.add(parentDoc , 'mouseup' , listeners.pointerEnd);
events.add(parentDoc , 'touchend' , listeners.pointerEnd);
events.add(parentDoc , 'touchcancel' , listeners.pointerEnd);
events.add(parentDoc , 'pointerup' , listeners.pointerEnd);
events.add(parentDoc , 'MSPointerUp' , listeners.pointerEnd);
events.add(parentWindow, 'blur' , endAllInteractions );
}
}
catch (error) {
interact.windowParentError = error;
}
// prevent native HTML5 drag on interact.js target elements
events.add(doc, 'dragstart', function (event) {
for (var i = 0; i < interactions.length; i++) {
var interaction = interactions[i];
if (interaction.element
&& (interaction.element === event.target
|| nodeContains(interaction.element, event.target))) {
interaction.checkAndPreventDefault(event, interaction.target, interaction.element);
return;
}
}
});
if (events.useAttachEvent) {
// For IE's lack of Event#preventDefault
events.add(doc, 'selectstart', function (event) {
var interaction = interactions[0];
if (interaction.currentAction()) {
interaction.checkAndPreventDefault(event);
}
});
// For IE's bad dblclick event sequence
events.add(doc, 'dblclick', doOnInteractions('ie8Dblclick'));
}
documents.push(doc);
}
listenToDocument(document);
function indexOf (array, target) {
for (var i = 0, len = array.length; i < len; i++) {
if (array[i] === target) {
return i;
}
}
return -1;
}
function contains (array, target) {
return indexOf(array, target) !== -1;
}
function matchesSelector (element, selector, nodeList) {
if (ie8MatchesSelector) {
return ie8MatchesSelector(element, selector, nodeList);
}
// remove /deep/ from selectors if shadowDOM polyfill is used
if (window !== realWindow) {
selector = selector.replace(/\/deep\//g, ' ');
}
return element[prefixedMatchesSelector](selector);
}
function matchesUpTo (element, selector, limit) {
while (isElement(element)) {
if (matchesSelector(element, selector)) {
return true;
}
element = parentElement(element);
if (element === limit) {
return matchesSelector(element, selector);
}
}
return false;
}
// For IE8's lack of an Element#matchesSelector
// taken from http://tanalin.com/en/blog/2012/12/matches-selector-ie8/ and modified
if (!(prefixedMatchesSelector in Element.prototype) || !isFunction(Element.prototype[prefixedMatchesSelector])) {
ie8MatchesSelector = function (element, selector, elems) {
elems = elems || element.parentNode.querySelectorAll(selector);
for (var i = 0, len = elems.length; i < len; i++) {
if (elems[i] === element) {
return true;
}
}
return false;
};
}
// requestAnimationFrame polyfill
(function() {
var lastTime = 0,
vendors = ['ms', 'moz', 'webkit', 'o'];
for(var x = 0; x < vendors.length && !realWindow.requestAnimationFrame; ++x) {
reqFrame = realWindow[vendors[x]+'RequestAnimationFrame'];
cancelFrame = realWindow[vendors[x]+'CancelAnimationFrame'] || realWindow[vendors[x]+'CancelRequestAnimationFrame'];
}
if (!reqFrame) {
reqFrame = function(callback) {
var currTime = new Date().getTime(),
timeToCall = Math.max(0, 16 - (currTime - lastTime)),
id = setTimeout(function() { callback(currTime + timeToCall); },
timeToCall);
lastTime = currTime + timeToCall;
return id;
};
}
if (!cancelFrame) {
cancelFrame = function(id) {
clearTimeout(id);
};
}
}());
/* global exports: true, module, define */
// http://documentcloud.github.io/underscore/docs/underscore.html#section-11
if (typeof exports !== 'undefined') {
if (typeof module !== 'undefined' && module.exports) {
exports = module.exports = interact;
}
exports.interact = interact;
}
// AMD
else if (typeof define === 'function' && define.amd) {
define('interact', function() {
return interact;
});
}
else {
realWindow.interact = interact;
}
} (typeof window === 'undefined'? undefined : window));

/script-kiddie/002_script_kiddie/script-kiddie/node_modules/interactjs/dist/interact.min.js
@@ -0,0 +1,6 @@
/* interact.js v1.2.8 | https://raw.github.com/taye/interact.js/master/LICENSE */
(function(realWindow){"use strict";if(!realWindow){return}var window=function(){var el=realWindow.document.createTextNode("");if(el.ownerDocument!==realWindow.document&&typeof realWindow.wrap==="function"&&realWindow.wrap(el)===el){return realWindow.wrap(realWindow)}return realWindow}(),document=window.document,DocumentFragment=window.DocumentFragment||blank,SVGElement=window.SVGElement||blank,SVGSVGElement=window.SVGSVGElement||blank,SVGElementInstance=window.SVGElementInstance||blank,HTMLElement=window.HTMLElement||window.Element,PointerEvent=window.PointerEvent||window.MSPointerEvent,pEventTypes,hypot=Math.hypot||function(x,y){return Math.sqrt(x*x+y*y)},tmpXY={},documents=[],interactables=[],interactions=[],dynamicDrop=false,delegatedEvents={},defaultOptions={base:{accept:null,actionChecker:null,styleCursor:true,preventDefault:"auto",origin:{x:0,y:0},deltaSource:"page",allowFrom:null,ignoreFrom:null,_context:document,dropChecker:null},drag:{enabled:false,manualStart:true,max:Infinity,maxPerElement:1,snap:null,restrict:null,inertia:null,autoScroll:null,axis:"xy"},drop:{enabled:false,accept:null,overlap:"pointer"},resize:{enabled:false,manualStart:false,max:Infinity,maxPerElement:1,snap:null,restrict:null,inertia:null,autoScroll:null,square:false,preserveAspectRatio:false,axis:"xy",margin:NaN,edges:null,invert:"none"},gesture:{manualStart:false,enabled:false,max:Infinity,maxPerElement:1,restrict:null},perAction:{manualStart:false,max:Infinity,maxPerElement:1,snap:{enabled:false,endOnly:false,range:Infinity,targets:null,offsets:null,relativePoints:null},restrict:{enabled:false,endOnly:false},autoScroll:{enabled:false,container:null,margin:60,speed:300},inertia:{enabled:false,resistance:10,minSpeed:100,endSpeed:10,allowResume:true,zeroResumeDelta:true,smoothEndDuration:300}},_holdDuration:600},autoScroll={interaction:null,i:null,x:0,y:0,scroll:function(){var options=autoScroll.interaction.target.options[autoScroll.interaction.prepared.name].autoScroll,container=options.container||getWindow(autoScroll.interaction.element),now=(new Date).getTime(),dtx=(now-autoScroll.prevTimeX)/1e3,dty=(now-autoScroll.prevTimeY)/1e3,vx,vy,sx,sy;if(options.velocity){vx=options.velocity.x;vy=options.velocity.y}else{vx=vy=options.speed}sx=vx*dtx;sy=vy*dty;if(sx>=1||sy>=1){if(isWindow(container)){container.scrollBy(autoScroll.x*sx,autoScroll.y*sy)}else if(container){container.scrollLeft+=autoScroll.x*sx;container.scrollTop+=autoScroll.y*sy}if(sx>=1)autoScroll.prevTimeX=now;if(sy>=1)autoScroll.prevTimeY=now}if(autoScroll.isScrolling){cancelFrame(autoScroll.i);autoScroll.i=reqFrame(autoScroll.scroll)}},isScrolling:false,prevTimeX:0,prevTimeY:0,start:function(interaction){autoScroll.isScrolling=true;cancelFrame(autoScroll.i);autoScroll.interaction=interaction;autoScroll.prevTimeX=(new Date).getTime();autoScroll.prevTimeY=(new Date).getTime();autoScroll.i=reqFrame(autoScroll.scroll)},stop:function(){autoScroll.isScrolling=false;cancelFrame(autoScroll.i)}},supportsTouch="ontouchstart"in window||window.DocumentTouch&&document instanceof window.DocumentTouch,supportsPointerEvent=PointerEvent&&!/Chrome/.test(navigator.userAgent),margin=supportsTouch||supportsPointerEvent?20:10,pointerMoveTolerance=1,prevTouchTime=0,maxInteractions=Infinity,actionCursors=document.all&&!window.atob?{drag:"move",resizex:"e-resize",resizey:"s-resize",resizexy:"se-resize",resizetop:"n-resize",resizeleft:"w-resize",resizebottom:"s-resize",resizeright:"e-resize",resizetopleft:"se-resize",resizebottomright:"se-resize",resizetopright:"ne-resize",resizebottomleft:"ne-resize",gesture:""}:{drag:"move",resizex:"ew-resize",resizey:"ns-resize",resizexy:"nwse-resize",resizetop:"ns-resize",resizeleft:"ew-resize",resizebottom:"ns-resize",resizeright:"ew-resize",resizetopleft:"nwse-resize",resizebottomright:"nwse-resize",resizetopright:"nesw-resize",resizebottomleft:"nesw-resize",gesture:""},actionIsEnabled={drag:true,resize:true,gesture:true},wheelEvent="onmousewheel"in document?"mousewheel":"wheel",eventTypes=["dragstart","dragmove","draginertiastart","dragend","dragenter","dragleave","dropactivate","dropdeactivate","dropmove","drop","resizestart","resizemove","resizeinertiastart","resizeend","gesturestart","gesturemove","gestureinertiastart","gestureend","down","move","up","cancel","tap","doubletap","hold"],globalEvents={},isOperaMobile=navigator.appName=="Opera"&&supportsTouch&&navigator.userAgent.match("Presto"),isIOS7=/iP(hone|od|ad)/.test(navigator.platform)&&/OS 7[^\d]/.test(navigator.appVersion),prefixedMatchesSelector="matches"in Element.prototype?"matches":"webkitMatchesSelector"in Element.prototype?"webkitMatchesSelector":"mozMatchesSelector"in Element.prototype?"mozMatchesSelector":"oMatchesSelector"in Element.prototype?"oMatchesSelector":"msMatchesSelector",ie8MatchesSelector,reqFrame=realWindow.requestAnimationFrame,cancelFrame=realWindow.cancelAnimationFrame,events=function(){var useAttachEvent="attachEvent"in window&&!("addEventListener"in window),addEvent=useAttachEvent?"attachEvent":"addEventListener",removeEvent=useAttachEvent?"detachEvent":"removeEventListener",on=useAttachEvent?"on":"",elements=[],targets=[],attachedListeners=[];function add(element,type,listener,useCapture){var elementIndex=indexOf(elements,element),target=targets[elementIndex];if(!target){target={events:{},typeCount:0};elementIndex=elements.push(element)-1;targets.push(target);attachedListeners.push(useAttachEvent?{supplied:[],wrapped:[],useCount:[]}:null)}if(!target.events[type]){target.events[type]=[];target.typeCount++}if(!contains(target.events[type],listener)){var ret;if(useAttachEvent){var listeners=attachedListeners[elementIndex],listenerIndex=indexOf(listeners.supplied,listener);var wrapped=listeners.wrapped[listenerIndex]||function(event){if(!event.immediatePropagationStopped){event.target=event.srcElement;event.currentTarget=element;event.preventDefault=event.preventDefault||preventDef;event.stopPropagation=event.stopPropagation||stopProp;event.stopImmediatePropagation=event.stopImmediatePropagation||stopImmProp;if(/mouse|click/.test(event.type)){event.pageX=event.clientX+getWindow(element).document.documentElement.scrollLeft;event.pageY=event.clientY+getWindow(element).document.documentElement.scrollTop}listener(event)}};ret=element[addEvent](on+type,wrapped,Boolean(useCapture));if(listenerIndex===-1){listeners.supplied.push(listener);listeners.wrapped.push(wrapped);listeners.useCount.push(1)}else{listeners.useCount[listenerIndex]++}}else{ret=element[addEvent](type,listener,useCapture||false)}target.events[type].push(listener);return ret}}function remove(element,type,listener,useCapture){var i,elementIndex=indexOf(elements,element),target=targets[elementIndex],listeners,listenerIndex,wrapped=listener;if(!target||!target.events){return}if(useAttachEvent){listeners=attachedListeners[elementIndex];listenerIndex=indexOf(listeners.supplied,listener);wrapped=listeners.wrapped[listenerIndex]}if(type==="all"){for(type in target.events){if(target.events.hasOwnProperty(type)){remove(element,type,"all")}}return}if(target.events[type]){var len=target.events[type].length;if(listener==="all"){for(i=0;i<len;i++){remove(element,type,target.events[type][i],Boolean(useCapture))}return}else{for(i=0;i<len;i++){if(target.events[type][i]===listener){element[removeEvent](on+type,wrapped,useCapture||false);target.events[type].splice(i,1);if(useAttachEvent&&listeners){listeners.useCount[listenerIndex]--;if(listeners.useCount[listenerIndex]===0){listeners.supplied.splice(listenerIndex,1);listeners.wrapped.splice(listenerIndex,1);listeners.useCount.splice(listenerIndex,1)}}break}}}if(target.events[type]&&target.events[type].length===0){target.events[type]=null;target.typeCount--}}if(!target.typeCount){targets.splice(elementIndex,1);elements.splice(elementIndex,1);attachedListeners.splice(elementIndex,1)}}function preventDef(){this.returnValue=false}function stopProp(){this.cancelBubble=true}function stopImmProp(){this.cancelBubble=true;this.immediatePropagationStopped=true}return{add:add,remove:remove,useAttachEvent:useAttachEvent,_elements:elements,_targets:targets,_attachedListeners:attachedListeners}}();function blank(){}function isElement(o){if(!o||typeof o!=="object"){return false}var _window=getWindow(o)||window;return/object|function/.test(typeof _window.Element)?o instanceof _window.Element:o.nodeType===1&&typeof o.nodeName==="string"}function isWindow(thing){return thing===window||!!(thing&&thing.Window)&&thing instanceof thing.Window}function isDocFrag(thing){return!!thing&&thing instanceof DocumentFragment}function isArray(thing){return isObject(thing)&&typeof thing.length!==undefined&&isFunction(thing.splice)}function isObject(thing){return!!thing&&typeof thing==="object"}function isFunction(thing){return typeof thing==="function"}function isNumber(thing){return typeof thing==="number"}function isBool(thing){return typeof thing==="boolean"}function isString(thing){return typeof thing==="string"}function trySelector(value){if(!isString(value)){return false}document.querySelector(value);return true}function extend(dest,source){for(var prop in source){dest[prop]=source[prop]}return dest}var prefixedPropREs={webkit:/(Movement[XY]|Radius[XY]|RotationAngle|Force)$/};function pointerExtend(dest,source){for(var prop in source){var deprecated=false;for(var vendor in prefixedPropREs){if(prop.indexOf(vendor)===0&&prefixedPropREs[vendor].test(prop)){deprecated=true;break}}if(!deprecated){dest[prop]=source[prop]}}return dest}function copyCoords(dest,src){dest.page=dest.page||{};dest.page.x=src.page.x;dest.page.y=src.page.y;dest.client=dest.client||{};dest.client.x=src.client.x;dest.client.y=src.client.y;dest.timeStamp=src.timeStamp}function setEventXY(targetObj,pointers,interaction){var pointer=pointers.length>1?pointerAverage(pointers):pointers[0];getPageXY(pointer,tmpXY,interaction);targetObj.page.x=tmpXY.x;targetObj.page.y=tmpXY.y;getClientXY(pointer,tmpXY,interaction);targetObj.client.x=tmpXY.x;targetObj.client.y=tmpXY.y;targetObj.timeStamp=(new Date).getTime()}function setEventDeltas(targetObj,prev,cur){targetObj.page.x=cur.page.x-prev.page.x;targetObj.page.y=cur.page.y-prev.page.y;targetObj.client.x=cur.client.x-prev.client.x;targetObj.client.y=cur.client.y-prev.client.y;targetObj.timeStamp=(new Date).getTime()-prev.timeStamp;var dt=Math.max(targetObj.timeStamp/1e3,.001);targetObj.page.speed=hypot(targetObj.page.x,targetObj.page.y)/dt;targetObj.page.vx=targetObj.page.x/dt;targetObj.page.vy=targetObj.page.y/dt;targetObj.client.speed=hypot(targetObj.client.x,targetObj.page.y)/dt;targetObj.client.vx=targetObj.client.x/dt;targetObj.client.vy=targetObj.client.y/dt}function isNativePointer(pointer){return pointer instanceof window.Event||supportsTouch&&window.Touch&&pointer instanceof window.Touch}function getXY(type,pointer,xy){xy=xy||{};type=type||"page";xy.x=pointer[type+"X"];xy.y=pointer[type+"Y"];return xy}function getPageXY(pointer,page){page=page||{};if(isOperaMobile&&isNativePointer(pointer)){getXY("screen",pointer,page);page.x+=window.scrollX;page.y+=window.scrollY}else{getXY("page",pointer,page)}return page}function getClientXY(pointer,client){client=client||{};if(isOperaMobile&&isNativePointer(pointer)){getXY("screen",pointer,client)}else{getXY("client",pointer,client)}return client}function getScrollXY(win){win=win||window;return{x:win.scrollX||win.document.documentElement.scrollLeft,y:win.scrollY||win.document.documentElement.scrollTop}}function getPointerId(pointer){return isNumber(pointer.pointerId)?pointer.pointerId:pointer.identifier}function getActualElement(element){return element instanceof SVGElementInstance?element.correspondingUseElement:element}function getWindow(node){if(isWindow(node)){return node}var rootNode=node.ownerDocument||node;return rootNode.defaultView||rootNode.parentWindow||window}function getElementClientRect(element){var clientRect=element instanceof SVGElement?element.getBoundingClientRect():element.getClientRects()[0];return clientRect&&{left:clientRect.left,right:clientRect.right,top:clientRect.top,bottom:clientRect.bottom,width:clientRect.width||clientRect.right-clientRect.left,height:clientRect.height||clientRect.bottom-clientRect.top}}function getElementRect(element){var clientRect=getElementClientRect(element);if(!isIOS7&&clientRect){var scroll=getScrollXY(getWindow(element));clientRect.left+=scroll.x;clientRect.right+=scroll.x;clientRect.top+=scroll.y;clientRect.bottom+=scroll.y}return clientRect}function getTouchPair(event){var touches=[];if(isArray(event)){touches[0]=event[0];touches[1]=event[1]}else{if(event.type==="touchend"){if(event.touches.length===1){touches[0]=event.touches[0];touches[1]=event.changedTouches[0]}else if(event.touches.length===0){touches[0]=event.changedTouches[0];touches[1]=event.changedTouches[1]}}else{touches[0]=event.touches[0];touches[1]=event.touches[1]}}return touches}function pointerAverage(pointers){var average={pageX:0,pageY:0,clientX:0,clientY:0,screenX:0,screenY:0};var prop;for(var i=0;i<pointers.length;i++){for(prop in average){average[prop]+=pointers[i][prop]}}for(prop in average){average[prop]/=pointers.length}return average}function touchBBox(event){if(!event.length&&!(event.touches&&event.touches.length>1)){return}var touches=getTouchPair(event),minX=Math.min(touches[0].pageX,touches[1].pageX),minY=Math.min(touches[0].pageY,touches[1].pageY),maxX=Math.max(touches[0].pageX,touches[1].pageX),maxY=Math.max(touches[0].pageY,touches[1].pageY);return{x:minX,y:minY,left:minX,top:minY,width:maxX-minX,height:maxY-minY}}function touchDistance(event,deltaSource){deltaSource=deltaSource||defaultOptions.deltaSource;var sourceX=deltaSource+"X",sourceY=deltaSource+"Y",touches=getTouchPair(event);var dx=touches[0][sourceX]-touches[1][sourceX],dy=touches[0][sourceY]-touches[1][sourceY];return hypot(dx,dy)}function touchAngle(event,prevAngle,deltaSource){deltaSource=deltaSource||defaultOptions.deltaSource;var sourceX=deltaSource+"X",sourceY=deltaSource+"Y",touches=getTouchPair(event),dx=touches[0][sourceX]-touches[1][sourceX],dy=touches[0][sourceY]-touches[1][sourceY],angle=180*Math.atan(dy/dx)/Math.PI;if(isNumber(prevAngle)){var dr=angle-prevAngle,drClamped=dr%360;if(drClamped>315){angle-=360+angle/360|0*360}else if(drClamped>135){angle-=180+angle/360|0*360}else if(drClamped<-315){angle+=360+angle/360|0*360}else if(drClamped<-135){angle+=180+angle/360|0*360}}return angle}function getOriginXY(interactable,element){var origin=interactable?interactable.options.origin:defaultOptions.origin;if(origin==="parent"){origin=parentElement(element)}else if(origin==="self"){origin=interactable.getRect(element)}else if(trySelector(origin)){origin=closest(element,origin)||{x:0,y:0}}if(isFunction(origin)){origin=origin(interactable&&element)}if(isElement(origin)){origin=getElementRect(origin)}origin.x="x"in origin?origin.x:origin.left;origin.y="y"in origin?origin.y:origin.top;return origin}function _getQBezierValue(t,p1,p2,p3){var iT=1-t;return iT*iT*p1+2*iT*t*p2+t*t*p3}function getQuadraticCurvePoint(startX,startY,cpX,cpY,endX,endY,position){return{x:_getQBezierValue(position,startX,cpX,endX),y:_getQBezierValue(position,startY,cpY,endY)}}function easeOutQuad(t,b,c,d){t/=d;return-c*t*(t-2)+b}function nodeContains(parent,child){while(child){if(child===parent){return true}child=child.parentNode}return false}function closest(child,selector){var parent=parentElement(child);while(isElement(parent)){if(matchesSelector(parent,selector)){return parent}parent=parentElement(parent)}return null}function parentElement(node){var parent=node.parentNode;if(isDocFrag(parent)){while((parent=parent.host)&&isDocFrag(parent)){}return parent}return parent}function inContext(interactable,element){return interactable._context===element.ownerDocument||nodeContains(interactable._context,element)}function testIgnore(interactable,interactableElement,element){var ignoreFrom=interactable.options.ignoreFrom;if(!ignoreFrom||!isElement(element)){return false}if(isString(ignoreFrom)){return matchesUpTo(element,ignoreFrom,interactableElement)}else if(isElement(ignoreFrom)){return nodeContains(ignoreFrom,element)}return false}function testAllow(interactable,interactableElement,element){var allowFrom=interactable.options.allowFrom;if(!allowFrom){return true}if(!isElement(element)){return false}if(isString(allowFrom)){return matchesUpTo(element,allowFrom,interactableElement)}else if(isElement(allowFrom)){return nodeContains(allowFrom,element)}return false}function checkAxis(axis,interactable){if(!interactable){return false}var thisAxis=interactable.options.drag.axis;return axis==="xy"||thisAxis==="xy"||thisAxis===axis}function checkSnap(interactable,action){var options=interactable.options;if(/^resize/.test(action)){action="resize"}return options[action].snap&&options[action].snap.enabled}function checkRestrict(interactable,action){var options=interactable.options;if(/^resize/.test(action)){action="resize"}return options[action].restrict&&options[action].restrict.enabled}function checkAutoScroll(interactable,action){var options=interactable.options;if(/^resize/.test(action)){action="resize"}return options[action].autoScroll&&options[action].autoScroll.enabled}function withinInteractionLimit(interactable,element,action){var options=interactable.options,maxActions=options[action.name].max,maxPerElement=options[action.name].maxPerElement,activeInteractions=0,targetCount=0,targetElementCount=0;for(var i=0,len=interactions.length;i<len;i++){var interaction=interactions[i],otherAction=interaction.prepared.name,active=interaction.interacting();if(!active){continue}activeInteractions++;if(activeInteractions>=maxInteractions){return false}if(interaction.target!==interactable){continue}targetCount+=otherAction===action.name|0;if(targetCount>=maxActions){return false}if(interaction.element===element){targetElementCount++;if(otherAction!==action.name||targetElementCount>=maxPerElement){return false}}}return maxInteractions>0}function indexOfDeepestElement(elements){var dropzone,deepestZone=elements[0],index=deepestZone?0:-1,parent,deepestZoneParents=[],dropzoneParents=[],child,i,n;for(i=1;i<elements.length;i++){dropzone=elements[i];if(!dropzone||dropzone===deepestZone){continue}if(!deepestZone){deepestZone=dropzone;index=i;continue}if(dropzone.parentNode===dropzone.ownerDocument){continue}else if(deepestZone.parentNode===dropzone.ownerDocument){deepestZone=dropzone;index=i;continue}if(!deepestZoneParents.length){parent=deepestZone;while(parent.parentNode&&parent.parentNode!==parent.ownerDocument){deepestZoneParents.unshift(parent);parent=parent.parentNode}}if(deepestZone instanceof HTMLElement&&dropzone instanceof SVGElement&&!(dropzone instanceof SVGSVGElement)){if(dropzone===deepestZone.parentNode){continue}parent=dropzone.ownerSVGElement}else{parent=dropzone}dropzoneParents=[];while(parent.parentNode!==parent.ownerDocument){dropzoneParents.unshift(parent);parent=parent.parentNode}n=0;while(dropzoneParents[n]&&dropzoneParents[n]===deepestZoneParents[n]){n++}var parents=[dropzoneParents[n-1],dropzoneParents[n],deepestZoneParents[n]];child=parents[0].lastChild;while(child){if(child===parents[1]){deepestZone=dropzone;index=i;deepestZoneParents=[];break}else if(child===parents[2]){break}child=child.previousSibling}}return index}function Interaction(){this.target=null;this.element=null;this.dropTarget=null;this.dropElement=null;this.prevDropTarget=null;this.prevDropElement=null;this.prepared={name:null,axis:null,edges:null};this.matches=[];this.matchElements=[];this.inertiaStatus={active:false,smoothEnd:false,ending:false,startEvent:null,upCoords:{},xe:0,ye:0,sx:0,sy:0,t0:0,vx0:0,vys:0,duration:0,resumeDx:0,resumeDy:0,lambda_v0:0,one_ve_v0:0,i:null};if(isFunction(Function.prototype.bind)){this.boundInertiaFrame=this.inertiaFrame.bind(this);this.boundSmoothEndFrame=this.smoothEndFrame.bind(this)}else{var that=this;this.boundInertiaFrame=function(){return that.inertiaFrame()};this.boundSmoothEndFrame=function(){return that.smoothEndFrame()}}this.activeDrops={dropzones:[],elements:[],rects:[]};this.pointers=[];this.pointerIds=[];this.downTargets=[];this.downTimes=[];this.holdTimers=[];this.prevCoords={page:{x:0,y:0},client:{x:0,y:0},timeStamp:0};this.curCoords={page:{x:0,y:0},client:{x:0,y:0},timeStamp:0};this.startCoords={page:{x:0,y:0},client:{x:0,y:0},timeStamp:0};this.pointerDelta={page:{x:0,y:0,vx:0,vy:0,speed:0},client:{x:0,y:0,vx:0,vy:0,speed:0},timeStamp:0};this.downEvent=null;this.downPointer={};this._eventTarget=null;this._curEventTarget=null;this.prevEvent=null;this.tapTime=0;this.prevTap=null;this.startOffset={left:0,right:0,top:0,bottom:0};this.restrictOffset={left:0,right:0,top:0,bottom:0};this.snapOffsets=[];this.gesture={start:{x:0,y:0},startDistance:0,prevDistance:0,distance:0,scale:1,startAngle:0,prevAngle:0};this.snapStatus={x:0,y:0,dx:0,dy:0,realX:0,realY:0,snappedX:0,snappedY:0,targets:[],locked:false,changed:false};this.restrictStatus={dx:0,dy:0,restrictedX:0,restrictedY:0,snap:null,restricted:false,changed:false};this.restrictStatus.snap=this.snapStatus;this.pointerIsDown=false;this.pointerWasMoved=false;this.gesturing=false;this.dragging=false;this.resizing=false;this.resizeAxes="xy";this.mouse=false;interactions.push(this)}Interaction.prototype={getPageXY:function(pointer,xy){return getPageXY(pointer,xy,this)},getClientXY:function(pointer,xy){return getClientXY(pointer,xy,this)},setEventXY:function(target,ptr){return setEventXY(target,ptr,this)},pointerOver:function(pointer,event,eventTarget){if(this.prepared.name||!this.mouse){return}var curMatches=[],curMatchElements=[],prevTargetElement=this.element;this.addPointer(pointer);if(this.target&&(testIgnore(this.target,this.element,eventTarget)||!testAllow(this.target,this.element,eventTarget))){this.target=null;this.element=null;this.matches=[];this.matchElements=[]}var elementInteractable=interactables.get(eventTarget),elementAction=elementInteractable&&!testIgnore(elementInteractable,eventTarget,eventTarget)&&testAllow(elementInteractable,eventTarget,eventTarget)&&validateAction(elementInteractable.getAction(pointer,event,this,eventTarget),elementInteractable);if(elementAction&&!withinInteractionLimit(elementInteractable,eventTarget,elementAction)){elementAction=null}function pushCurMatches(interactable,selector){if(interactable&&inContext(interactable,eventTarget)&&!testIgnore(interactable,eventTarget,eventTarget)&&testAllow(interactable,eventTarget,eventTarget)&&matchesSelector(eventTarget,selector)){curMatches.push(interactable);curMatchElements.push(eventTarget)}}if(elementAction){this.target=elementInteractable;this.element=eventTarget;this.matches=[];this.matchElements=[]}else{interactables.forEachSelector(pushCurMatches);if(this.validateSelector(pointer,event,curMatches,curMatchElements)){this.matches=curMatches;this.matchElements=curMatchElements;this.pointerHover(pointer,event,this.matches,this.matchElements);events.add(eventTarget,supportsPointerEvent?pEventTypes.move:"mousemove",listeners.pointerHover)}else if(this.target){if(nodeContains(prevTargetElement,eventTarget)){this.pointerHover(pointer,event,this.matches,this.matchElements);events.add(this.element,supportsPointerEvent?pEventTypes.move:"mousemove",listeners.pointerHover)}else{this.target=null;this.element=null;this.matches=[];this.matchElements=[]}}}},pointerHover:function(pointer,event,eventTarget,curEventTarget,matches,matchElements){var target=this.target;if(!this.prepared.name&&this.mouse){var action;this.setEventXY(this.curCoords,[pointer]);if(matches){action=this.validateSelector(pointer,event,matches,matchElements)}else if(target){action=validateAction(target.getAction(this.pointers[0],event,this,this.element),this.target)}if(target&&target.options.styleCursor){if(action){target._doc.documentElement.style.cursor=getActionCursor(action)}else{target._doc.documentElement.style.cursor=""}}}else if(this.prepared.name){this.checkAndPreventDefault(event,target,this.element)}},pointerOut:function(pointer,event,eventTarget){if(this.prepared.name){return}if(!interactables.get(eventTarget)){events.remove(eventTarget,supportsPointerEvent?pEventTypes.move:"mousemove",listeners.pointerHover)}if(this.target&&this.target.options.styleCursor&&!this.interacting()){this.target._doc.documentElement.style.cursor=""}},selectorDown:function(pointer,event,eventTarget,curEventTarget){var that=this,eventCopy=events.useAttachEvent?extend({},event):event,element=eventTarget,pointerIndex=this.addPointer(pointer),action;this.holdTimers[pointerIndex]=setTimeout(function(){that.pointerHold(events.useAttachEvent?eventCopy:pointer,eventCopy,eventTarget,curEventTarget)},defaultOptions._holdDuration);this.pointerIsDown=true;if(this.inertiaStatus.active&&this.target.selector){while(isElement(element)){if(element===this.element&&validateAction(this.target.getAction(pointer,event,this,this.element),this.target).name===this.prepared.name){cancelFrame(this.inertiaStatus.i);this.inertiaStatus.active=false;this.collectEventTargets(pointer,event,eventTarget,"down");return}element=parentElement(element)}}if(this.interacting()){this.collectEventTargets(pointer,event,eventTarget,"down");return}function pushMatches(interactable,selector,context){var elements=ie8MatchesSelector?context.querySelectorAll(selector):undefined;if(inContext(interactable,element)&&!testIgnore(interactable,element,eventTarget)&&testAllow(interactable,element,eventTarget)&&matchesSelector(element,selector,elements)){that.matches.push(interactable);that.matchElements.push(element)}}this.setEventXY(this.curCoords,[pointer]);this.downEvent=event;while(isElement(element)&&!action){this.matches=[];this.matchElements=[];interactables.forEachSelector(pushMatches);action=this.validateSelector(pointer,event,this.matches,this.matchElements);element=parentElement(element)}if(action){this.prepared.name=action.name;this.prepared.axis=action.axis;this.prepared.edges=action.edges;this.collectEventTargets(pointer,event,eventTarget,"down");return this.pointerDown(pointer,event,eventTarget,curEventTarget,action)}else{this.downTimes[pointerIndex]=(new Date).getTime();this.downTargets[pointerIndex]=eventTarget;pointerExtend(this.downPointer,pointer);copyCoords(this.prevCoords,this.curCoords);this.pointerWasMoved=false}this.collectEventTargets(pointer,event,eventTarget,"down")},pointerDown:function(pointer,event,eventTarget,curEventTarget,forceAction){if(!forceAction&&!this.inertiaStatus.active&&this.pointerWasMoved&&this.prepared.name){this.checkAndPreventDefault(event,this.target,this.element);return}this.pointerIsDown=true;this.downEvent=event;var pointerIndex=this.addPointer(pointer),action;if(this.pointerIds.length>1&&this.target._element===this.element){var newAction=validateAction(forceAction||this.target.getAction(pointer,event,this,this.element),this.target);if(withinInteractionLimit(this.target,this.element,newAction)){action=newAction}this.prepared.name=null}else if(!this.prepared.name){var interactable=interactables.get(curEventTarget);if(interactable&&!testIgnore(interactable,curEventTarget,eventTarget)&&testAllow(interactable,curEventTarget,eventTarget)&&(action=validateAction(forceAction||interactable.getAction(pointer,event,this,curEventTarget),interactable,eventTarget))&&withinInteractionLimit(interactable,curEventTarget,action)){this.target=interactable;this.element=curEventTarget}}var target=this.target,options=target&&target.options;if(target&&(forceAction||!this.prepared.name)){action=action||validateAction(forceAction||target.getAction(pointer,event,this,curEventTarget),target,this.element);this.setEventXY(this.startCoords,this.pointers);if(!action){return}if(options.styleCursor){target._doc.documentElement.style.cursor=getActionCursor(action)}this.resizeAxes=action.name==="resize"?action.axis:null;if(action==="gesture"&&this.pointerIds.length<2){action=null}this.prepared.name=action.name;this.prepared.axis=action.axis;this.prepared.edges=action.edges;this.snapStatus.snappedX=this.snapStatus.snappedY=this.restrictStatus.restrictedX=this.restrictStatus.restrictedY=NaN;this.downTimes[pointerIndex]=(new Date).getTime();this.downTargets[pointerIndex]=eventTarget;pointerExtend(this.downPointer,pointer);copyCoords(this.prevCoords,this.startCoords);this.pointerWasMoved=false;this.checkAndPreventDefault(event,target,this.element)}else if(this.inertiaStatus.active&&curEventTarget===this.element&&validateAction(target.getAction(pointer,event,this,this.element),target).name===this.prepared.name){cancelFrame(this.inertiaStatus.i);this.inertiaStatus.active=false;this.checkAndPreventDefault(event,target,this.element)}},setModifications:function(coords,preEnd){var target=this.target,shouldMove=true,shouldSnap=checkSnap(target,this.prepared.name)&&(!target.options[this.prepared.name].snap.endOnly||preEnd),shouldRestrict=checkRestrict(target,this.prepared.name)&&(!target.options[this.prepared.name].restrict.endOnly||preEnd);if(shouldSnap){this.setSnapping(coords)}else{this.snapStatus.locked=false}if(shouldRestrict){this.setRestriction(coords)}else{this.restrictStatus.restricted=false}if(shouldSnap&&this.snapStatus.locked&&!this.snapStatus.changed){shouldMove=shouldRestrict&&this.restrictStatus.restricted&&this.restrictStatus.changed}else if(shouldRestrict&&this.restrictStatus.restricted&&!this.restrictStatus.changed){shouldMove=false}return shouldMove},setStartOffsets:function(action,interactable,element){var rect=interactable.getRect(element),origin=getOriginXY(interactable,element),snap=interactable.options[this.prepared.name].snap,restrict=interactable.options[this.prepared.name].restrict,width,height;if(rect){this.startOffset.left=this.startCoords.page.x-rect.left;this.startOffset.top=this.startCoords.page.y-rect.top;this.startOffset.right=rect.right-this.startCoords.page.x;this.startOffset.bottom=rect.bottom-this.startCoords.page.y;if("width"in rect){width=rect.width}else{width=rect.right-rect.left}if("height"in rect){height=rect.height}else{height=rect.bottom-rect.top}}else{this.startOffset.left=this.startOffset.top=this.startOffset.right=this.startOffset.bottom=0}this.snapOffsets.splice(0);var snapOffset=snap&&snap.offset==="startCoords"?{x:this.startCoords.page.x-origin.x,y:this.startCoords.page.y-origin.y}:snap&&snap.offset||{x:0,y:0};if(rect&&snap&&snap.relativePoints&&snap.relativePoints.length){for(var i=0;i<snap.relativePoints.length;i++){this.snapOffsets.push({x:this.startOffset.left-width*snap.relativePoints[i].x+snapOffset.x,y:this.startOffset.top-height*snap.relativePoints[i].y+snapOffset.y})}}else{this.snapOffsets.push(snapOffset)}if(rect&&restrict.elementRect){this.restrictOffset.left=this.startOffset.left-width*restrict.elementRect.left;this.restrictOffset.top=this.startOffset.top-height*restrict.elementRect.top;this.restrictOffset.right=this.startOffset.right-width*(1-restrict.elementRect.right);this.restrictOffset.bottom=this.startOffset.bottom-height*(1-restrict.elementRect.bottom)}else{this.restrictOffset.left=this.restrictOffset.top=this.restrictOffset.right=this.restrictOffset.bottom=0}},start:function(action,interactable,element){if(this.interacting()||!this.pointerIsDown||this.pointerIds.length<(action.name==="gesture"?2:1)){return}if(indexOf(interactions,this)===-1){interactions.push(this)}if(!this.prepared.name){this.setEventXY(this.startCoords,this.pointers)}this.prepared.name=action.name;this.prepared.axis=action.axis;this.prepared.edges=action.edges;this.target=interactable;this.element=element;this.setStartOffsets(action.name,interactable,element);this.setModifications(this.startCoords.page);this.prevEvent=this[this.prepared.name+"Start"](this.downEvent)},pointerMove:function(pointer,event,eventTarget,curEventTarget,preEnd){if(this.inertiaStatus.active){var pageUp=this.inertiaStatus.upCoords.page;var clientUp=this.inertiaStatus.upCoords.client;var inertiaPosition={pageX:pageUp.x+this.inertiaStatus.sx,pageY:pageUp.y+this.inertiaStatus.sy,clientX:clientUp.x+this.inertiaStatus.sx,
clientY:clientUp.y+this.inertiaStatus.sy};this.setEventXY(this.curCoords,[inertiaPosition])}else{this.recordPointer(pointer);this.setEventXY(this.curCoords,this.pointers)}var duplicateMove=this.curCoords.page.x===this.prevCoords.page.x&&this.curCoords.page.y===this.prevCoords.page.y&&this.curCoords.client.x===this.prevCoords.client.x&&this.curCoords.client.y===this.prevCoords.client.y;var dx,dy,pointerIndex=this.mouse?0:indexOf(this.pointerIds,getPointerId(pointer));if(this.pointerIsDown&&!this.pointerWasMoved){dx=this.curCoords.client.x-this.startCoords.client.x;dy=this.curCoords.client.y-this.startCoords.client.y;this.pointerWasMoved=hypot(dx,dy)>pointerMoveTolerance}if(!duplicateMove&&(!this.pointerIsDown||this.pointerWasMoved)){if(this.pointerIsDown){clearTimeout(this.holdTimers[pointerIndex])}this.collectEventTargets(pointer,event,eventTarget,"move")}if(!this.pointerIsDown){return}if(duplicateMove&&this.pointerWasMoved&&!preEnd){this.checkAndPreventDefault(event,this.target,this.element);return}setEventDeltas(this.pointerDelta,this.prevCoords,this.curCoords);if(!this.prepared.name){return}if(this.pointerWasMoved&&(!this.inertiaStatus.active||pointer instanceof InteractEvent&&/inertiastart/.test(pointer.type))){if(!this.interacting()){setEventDeltas(this.pointerDelta,this.prevCoords,this.curCoords);if(this.prepared.name==="drag"){var absX=Math.abs(dx),absY=Math.abs(dy),targetAxis=this.target.options.drag.axis,axis=absX>absY?"x":absX<absY?"y":"xy";if(axis!=="xy"&&targetAxis!=="xy"&&targetAxis!==axis){this.prepared.name=null;var element=eventTarget;while(isElement(element)){var elementInteractable=interactables.get(element);if(elementInteractable&&elementInteractable!==this.target&&!elementInteractable.options.drag.manualStart&&elementInteractable.getAction(this.downPointer,this.downEvent,this,element).name==="drag"&&checkAxis(axis,elementInteractable)){this.prepared.name="drag";this.target=elementInteractable;this.element=element;break}element=parentElement(element)}if(!this.prepared.name){var thisInteraction=this;var getDraggable=function(interactable,selector,context){var elements=ie8MatchesSelector?context.querySelectorAll(selector):undefined;if(interactable===thisInteraction.target){return}if(inContext(interactable,eventTarget)&&!interactable.options.drag.manualStart&&!testIgnore(interactable,element,eventTarget)&&testAllow(interactable,element,eventTarget)&&matchesSelector(element,selector,elements)&&interactable.getAction(thisInteraction.downPointer,thisInteraction.downEvent,thisInteraction,element).name==="drag"&&checkAxis(axis,interactable)&&withinInteractionLimit(interactable,element,"drag")){return interactable}};element=eventTarget;while(isElement(element)){var selectorInteractable=interactables.forEachSelector(getDraggable);if(selectorInteractable){this.prepared.name="drag";this.target=selectorInteractable;this.element=element;break}element=parentElement(element)}}}}}var starting=!!this.prepared.name&&!this.interacting();if(starting&&(this.target.options[this.prepared.name].manualStart||!withinInteractionLimit(this.target,this.element,this.prepared))){this.stop(event);return}if(this.prepared.name&&this.target){if(starting){this.start(this.prepared,this.target,this.element)}var shouldMove=this.setModifications(this.curCoords.page,preEnd);if(shouldMove||starting){this.prevEvent=this[this.prepared.name+"Move"](event)}this.checkAndPreventDefault(event,this.target,this.element)}}copyCoords(this.prevCoords,this.curCoords);if(this.dragging||this.resizing){this.autoScrollMove(pointer)}},dragStart:function(event){var dragEvent=new InteractEvent(this,event,"drag","start",this.element);this.dragging=true;this.target.fire(dragEvent);this.activeDrops.dropzones=[];this.activeDrops.elements=[];this.activeDrops.rects=[];if(!this.dynamicDrop){this.setActiveDrops(this.element)}var dropEvents=this.getDropEvents(event,dragEvent);if(dropEvents.activate){this.fireActiveDrops(dropEvents.activate)}return dragEvent},dragMove:function(event){var target=this.target,dragEvent=new InteractEvent(this,event,"drag","move",this.element),draggableElement=this.element,drop=this.getDrop(dragEvent,event,draggableElement);this.dropTarget=drop.dropzone;this.dropElement=drop.element;var dropEvents=this.getDropEvents(event,dragEvent);target.fire(dragEvent);if(dropEvents.leave){this.prevDropTarget.fire(dropEvents.leave)}if(dropEvents.enter){this.dropTarget.fire(dropEvents.enter)}if(dropEvents.move){this.dropTarget.fire(dropEvents.move)}this.prevDropTarget=this.dropTarget;this.prevDropElement=this.dropElement;return dragEvent},resizeStart:function(event){var resizeEvent=new InteractEvent(this,event,"resize","start",this.element);if(this.prepared.edges){var startRect=this.target.getRect(this.element);if(this.target.options.resize.square||this.target.options.resize.preserveAspectRatio){var linkedEdges=extend({},this.prepared.edges);linkedEdges.top=linkedEdges.top||linkedEdges.left&&!linkedEdges.bottom;linkedEdges.left=linkedEdges.left||linkedEdges.top&&!linkedEdges.right;linkedEdges.bottom=linkedEdges.bottom||linkedEdges.right&&!linkedEdges.top;linkedEdges.right=linkedEdges.right||linkedEdges.bottom&&!linkedEdges.left;this.prepared._linkedEdges=linkedEdges}else{this.prepared._linkedEdges=null}if(this.target.options.resize.preserveAspectRatio){this.resizeStartAspectRatio=startRect.width/startRect.height}this.resizeRects={start:startRect,current:extend({},startRect),restricted:extend({},startRect),previous:extend({},startRect),delta:{left:0,right:0,width:0,top:0,bottom:0,height:0}};resizeEvent.rect=this.resizeRects.restricted;resizeEvent.deltaRect=this.resizeRects.delta}this.target.fire(resizeEvent);this.resizing=true;return resizeEvent},resizeMove:function(event){var resizeEvent=new InteractEvent(this,event,"resize","move",this.element);var edges=this.prepared.edges,invert=this.target.options.resize.invert,invertible=invert==="reposition"||invert==="negate";if(edges){var dx=resizeEvent.dx,dy=resizeEvent.dy,start=this.resizeRects.start,current=this.resizeRects.current,restricted=this.resizeRects.restricted,delta=this.resizeRects.delta,previous=extend(this.resizeRects.previous,restricted),originalEdges=edges;if(this.target.options.resize.preserveAspectRatio){var resizeStartAspectRatio=this.resizeStartAspectRatio;edges=this.prepared._linkedEdges;if(originalEdges.left&&originalEdges.bottom||originalEdges.right&&originalEdges.top){dy=-dx/resizeStartAspectRatio}else if(originalEdges.left||originalEdges.right){dy=dx/resizeStartAspectRatio}else if(originalEdges.top||originalEdges.bottom){dx=dy*resizeStartAspectRatio}}else if(this.target.options.resize.square){edges=this.prepared._linkedEdges;if(originalEdges.left&&originalEdges.bottom||originalEdges.right&&originalEdges.top){dy=-dx}else if(originalEdges.left||originalEdges.right){dy=dx}else if(originalEdges.top||originalEdges.bottom){dx=dy}}if(edges.top){current.top+=dy}if(edges.bottom){current.bottom+=dy}if(edges.left){current.left+=dx}if(edges.right){current.right+=dx}if(invertible){extend(restricted,current);if(invert==="reposition"){var swap;if(restricted.top>restricted.bottom){swap=restricted.top;restricted.top=restricted.bottom;restricted.bottom=swap}if(restricted.left>restricted.right){swap=restricted.left;restricted.left=restricted.right;restricted.right=swap}}}else{restricted.top=Math.min(current.top,start.bottom);restricted.bottom=Math.max(current.bottom,start.top);restricted.left=Math.min(current.left,start.right);restricted.right=Math.max(current.right,start.left)}restricted.width=restricted.right-restricted.left;restricted.height=restricted.bottom-restricted.top;for(var edge in restricted){delta[edge]=restricted[edge]-previous[edge]}resizeEvent.edges=this.prepared.edges;resizeEvent.rect=restricted;resizeEvent.deltaRect=delta}this.target.fire(resizeEvent);return resizeEvent},gestureStart:function(event){var gestureEvent=new InteractEvent(this,event,"gesture","start",this.element);gestureEvent.ds=0;this.gesture.startDistance=this.gesture.prevDistance=gestureEvent.distance;this.gesture.startAngle=this.gesture.prevAngle=gestureEvent.angle;this.gesture.scale=1;this.gesturing=true;this.target.fire(gestureEvent);return gestureEvent},gestureMove:function(event){if(!this.pointerIds.length){return this.prevEvent}var gestureEvent;gestureEvent=new InteractEvent(this,event,"gesture","move",this.element);gestureEvent.ds=gestureEvent.scale-this.gesture.scale;this.target.fire(gestureEvent);this.gesture.prevAngle=gestureEvent.angle;this.gesture.prevDistance=gestureEvent.distance;if(gestureEvent.scale!==Infinity&&gestureEvent.scale!==null&&gestureEvent.scale!==undefined&&!isNaN(gestureEvent.scale)){this.gesture.scale=gestureEvent.scale}return gestureEvent},pointerHold:function(pointer,event,eventTarget){this.collectEventTargets(pointer,event,eventTarget,"hold")},pointerUp:function(pointer,event,eventTarget,curEventTarget){var pointerIndex=this.mouse?0:indexOf(this.pointerIds,getPointerId(pointer));clearTimeout(this.holdTimers[pointerIndex]);this.collectEventTargets(pointer,event,eventTarget,"up");this.collectEventTargets(pointer,event,eventTarget,"tap");this.pointerEnd(pointer,event,eventTarget,curEventTarget);this.removePointer(pointer)},pointerCancel:function(pointer,event,eventTarget,curEventTarget){var pointerIndex=this.mouse?0:indexOf(this.pointerIds,getPointerId(pointer));clearTimeout(this.holdTimers[pointerIndex]);this.collectEventTargets(pointer,event,eventTarget,"cancel");this.pointerEnd(pointer,event,eventTarget,curEventTarget);this.removePointer(pointer)},ie8Dblclick:function(pointer,event,eventTarget){if(this.prevTap&&event.clientX===this.prevTap.clientX&&event.clientY===this.prevTap.clientY&&eventTarget===this.prevTap.target){this.downTargets[0]=eventTarget;this.downTimes[0]=(new Date).getTime();this.collectEventTargets(pointer,event,eventTarget,"tap")}},pointerEnd:function(pointer,event,eventTarget,curEventTarget){var endEvent,target=this.target,options=target&&target.options,inertiaOptions=options&&this.prepared.name&&options[this.prepared.name].inertia,inertiaStatus=this.inertiaStatus;if(this.interacting()){if(inertiaStatus.active&&!inertiaStatus.ending){return}var pointerSpeed,now=(new Date).getTime(),inertiaPossible=false,inertia=false,smoothEnd=false,endSnap=checkSnap(target,this.prepared.name)&&options[this.prepared.name].snap.endOnly,endRestrict=checkRestrict(target,this.prepared.name)&&options[this.prepared.name].restrict.endOnly,dx=0,dy=0,startEvent;if(this.dragging){if(options.drag.axis==="x"){pointerSpeed=Math.abs(this.pointerDelta.client.vx)}else if(options.drag.axis==="y"){pointerSpeed=Math.abs(this.pointerDelta.client.vy)}else{pointerSpeed=this.pointerDelta.client.speed}}else{pointerSpeed=this.pointerDelta.client.speed}inertiaPossible=inertiaOptions&&inertiaOptions.enabled&&this.prepared.name!=="gesture"&&event!==inertiaStatus.startEvent;inertia=inertiaPossible&&now-this.curCoords.timeStamp<50&&pointerSpeed>inertiaOptions.minSpeed&&pointerSpeed>inertiaOptions.endSpeed;if(inertiaPossible&&!inertia&&(endSnap||endRestrict)){var snapRestrict={};snapRestrict.snap=snapRestrict.restrict=snapRestrict;if(endSnap){this.setSnapping(this.curCoords.page,snapRestrict);if(snapRestrict.locked){dx+=snapRestrict.dx;dy+=snapRestrict.dy}}if(endRestrict){this.setRestriction(this.curCoords.page,snapRestrict);if(snapRestrict.restricted){dx+=snapRestrict.dx;dy+=snapRestrict.dy}}if(dx||dy){smoothEnd=true}}if(inertia||smoothEnd){copyCoords(inertiaStatus.upCoords,this.curCoords);this.pointers[0]=inertiaStatus.startEvent=startEvent=new InteractEvent(this,event,this.prepared.name,"inertiastart",this.element);inertiaStatus.t0=now;target.fire(inertiaStatus.startEvent);if(inertia){inertiaStatus.vx0=this.pointerDelta.client.vx;inertiaStatus.vy0=this.pointerDelta.client.vy;inertiaStatus.v0=pointerSpeed;this.calcInertia(inertiaStatus);var page=extend({},this.curCoords.page),origin=getOriginXY(target,this.element),statusObject;page.x=page.x+inertiaStatus.xe-origin.x;page.y=page.y+inertiaStatus.ye-origin.y;statusObject={useStatusXY:true,x:page.x,y:page.y,dx:0,dy:0,snap:null};statusObject.snap=statusObject;dx=dy=0;if(endSnap){var snap=this.setSnapping(this.curCoords.page,statusObject);if(snap.locked){dx+=snap.dx;dy+=snap.dy}}if(endRestrict){var restrict=this.setRestriction(this.curCoords.page,statusObject);if(restrict.restricted){dx+=restrict.dx;dy+=restrict.dy}}inertiaStatus.modifiedXe+=dx;inertiaStatus.modifiedYe+=dy;inertiaStatus.i=reqFrame(this.boundInertiaFrame)}else{inertiaStatus.smoothEnd=true;inertiaStatus.xe=dx;inertiaStatus.ye=dy;inertiaStatus.sx=inertiaStatus.sy=0;inertiaStatus.i=reqFrame(this.boundSmoothEndFrame)}inertiaStatus.active=true;return}if(endSnap||endRestrict){this.pointerMove(pointer,event,eventTarget,curEventTarget,true)}}if(this.dragging){endEvent=new InteractEvent(this,event,"drag","end",this.element);var draggableElement=this.element,drop=this.getDrop(endEvent,event,draggableElement);this.dropTarget=drop.dropzone;this.dropElement=drop.element;var dropEvents=this.getDropEvents(event,endEvent);if(dropEvents.leave){this.prevDropTarget.fire(dropEvents.leave)}if(dropEvents.enter){this.dropTarget.fire(dropEvents.enter)}if(dropEvents.drop){this.dropTarget.fire(dropEvents.drop)}if(dropEvents.deactivate){this.fireActiveDrops(dropEvents.deactivate)}target.fire(endEvent)}else if(this.resizing){endEvent=new InteractEvent(this,event,"resize","end",this.element);target.fire(endEvent)}else if(this.gesturing){endEvent=new InteractEvent(this,event,"gesture","end",this.element);target.fire(endEvent)}this.stop(event)},collectDrops:function(element){var drops=[],elements=[],i;element=element||this.element;for(i=0;i<interactables.length;i++){if(!interactables[i].options.drop.enabled){continue}var current=interactables[i],accept=current.options.drop.accept;if(isElement(accept)&&accept!==element||isString(accept)&&!matchesSelector(element,accept)){continue}var dropElements=current.selector?current._context.querySelectorAll(current.selector):[current._element];for(var j=0,len=dropElements.length;j<len;j++){var currentElement=dropElements[j];if(currentElement===element){continue}drops.push(current);elements.push(currentElement)}}return{dropzones:drops,elements:elements}},fireActiveDrops:function(event){var i,current,currentElement,prevElement;for(i=0;i<this.activeDrops.dropzones.length;i++){current=this.activeDrops.dropzones[i];currentElement=this.activeDrops.elements[i];if(currentElement!==prevElement){event.target=currentElement;current.fire(event)}prevElement=currentElement}},setActiveDrops:function(dragElement){var possibleDrops=this.collectDrops(dragElement,true);this.activeDrops.dropzones=possibleDrops.dropzones;this.activeDrops.elements=possibleDrops.elements;this.activeDrops.rects=[];for(var i=0;i<this.activeDrops.dropzones.length;i++){this.activeDrops.rects[i]=this.activeDrops.dropzones[i].getRect(this.activeDrops.elements[i])}},getDrop:function(dragEvent,event,dragElement){var validDrops=[];if(dynamicDrop){this.setActiveDrops(dragElement)}for(var j=0;j<this.activeDrops.dropzones.length;j++){var current=this.activeDrops.dropzones[j],currentElement=this.activeDrops.elements[j],rect=this.activeDrops.rects[j];validDrops.push(current.dropCheck(dragEvent,event,this.target,dragElement,currentElement,rect)?currentElement:null)}var dropIndex=indexOfDeepestElement(validDrops),dropzone=this.activeDrops.dropzones[dropIndex]||null,element=this.activeDrops.elements[dropIndex]||null;return{dropzone:dropzone,element:element}},getDropEvents:function(pointerEvent,dragEvent){var dropEvents={enter:null,leave:null,activate:null,deactivate:null,move:null,drop:null};if(this.dropElement!==this.prevDropElement){if(this.prevDropTarget){dropEvents.leave={target:this.prevDropElement,dropzone:this.prevDropTarget,relatedTarget:dragEvent.target,draggable:dragEvent.interactable,dragEvent:dragEvent,interaction:this,timeStamp:dragEvent.timeStamp,type:"dragleave"};dragEvent.dragLeave=this.prevDropElement;dragEvent.prevDropzone=this.prevDropTarget}if(this.dropTarget){dropEvents.enter={target:this.dropElement,dropzone:this.dropTarget,relatedTarget:dragEvent.target,draggable:dragEvent.interactable,dragEvent:dragEvent,interaction:this,timeStamp:dragEvent.timeStamp,type:"dragenter"};dragEvent.dragEnter=this.dropElement;dragEvent.dropzone=this.dropTarget}}if(dragEvent.type==="dragend"&&this.dropTarget){dropEvents.drop={target:this.dropElement,dropzone:this.dropTarget,relatedTarget:dragEvent.target,draggable:dragEvent.interactable,dragEvent:dragEvent,interaction:this,timeStamp:dragEvent.timeStamp,type:"drop"};dragEvent.dropzone=this.dropTarget}if(dragEvent.type==="dragstart"){dropEvents.activate={target:null,dropzone:null,relatedTarget:dragEvent.target,draggable:dragEvent.interactable,dragEvent:dragEvent,interaction:this,timeStamp:dragEvent.timeStamp,type:"dropactivate"}}if(dragEvent.type==="dragend"){dropEvents.deactivate={target:null,dropzone:null,relatedTarget:dragEvent.target,draggable:dragEvent.interactable,dragEvent:dragEvent,interaction:this,timeStamp:dragEvent.timeStamp,type:"dropdeactivate"}}if(dragEvent.type==="dragmove"&&this.dropTarget){dropEvents.move={target:this.dropElement,dropzone:this.dropTarget,relatedTarget:dragEvent.target,draggable:dragEvent.interactable,dragEvent:dragEvent,interaction:this,dragmove:dragEvent,timeStamp:dragEvent.timeStamp,type:"dropmove"};dragEvent.dropzone=this.dropTarget}return dropEvents},currentAction:function(){return this.dragging&&"drag"||this.resizing&&"resize"||this.gesturing&&"gesture"||null},interacting:function(){return this.dragging||this.resizing||this.gesturing},clearTargets:function(){this.target=this.element=null;this.dropTarget=this.dropElement=this.prevDropTarget=this.prevDropElement=null},stop:function(event){if(this.interacting()){autoScroll.stop();this.matches=[];this.matchElements=[];var target=this.target;if(target.options.styleCursor){target._doc.documentElement.style.cursor=""}if(event&&isFunction(event.preventDefault)){this.checkAndPreventDefault(event,target,this.element)}if(this.dragging){this.activeDrops.dropzones=this.activeDrops.elements=this.activeDrops.rects=null}}this.clearTargets();this.pointerIsDown=this.snapStatus.locked=this.dragging=this.resizing=this.gesturing=false;this.prepared.name=this.prevEvent=null;this.inertiaStatus.resumeDx=this.inertiaStatus.resumeDy=0;for(var i=0;i<this.pointers.length;i++){if(indexOf(this.pointerIds,getPointerId(this.pointers[i]))===-1){this.pointers.splice(i,1)}}},inertiaFrame:function(){var inertiaStatus=this.inertiaStatus,options=this.target.options[this.prepared.name].inertia,lambda=options.resistance,t=(new Date).getTime()/1e3-inertiaStatus.t0;if(t<inertiaStatus.te){var progress=1-(Math.exp(-lambda*t)-inertiaStatus.lambda_v0)/inertiaStatus.one_ve_v0;if(inertiaStatus.modifiedXe===inertiaStatus.xe&&inertiaStatus.modifiedYe===inertiaStatus.ye){inertiaStatus.sx=inertiaStatus.xe*progress;inertiaStatus.sy=inertiaStatus.ye*progress}else{var quadPoint=getQuadraticCurvePoint(0,0,inertiaStatus.xe,inertiaStatus.ye,inertiaStatus.modifiedXe,inertiaStatus.modifiedYe,progress);inertiaStatus.sx=quadPoint.x;inertiaStatus.sy=quadPoint.y}this.pointerMove(inertiaStatus.startEvent,inertiaStatus.startEvent);inertiaStatus.i=reqFrame(this.boundInertiaFrame)}else{inertiaStatus.ending=true;inertiaStatus.sx=inertiaStatus.modifiedXe;inertiaStatus.sy=inertiaStatus.modifiedYe;this.pointerMove(inertiaStatus.startEvent,inertiaStatus.startEvent);this.pointerEnd(inertiaStatus.startEvent,inertiaStatus.startEvent);inertiaStatus.active=inertiaStatus.ending=false}},smoothEndFrame:function(){var inertiaStatus=this.inertiaStatus,t=(new Date).getTime()-inertiaStatus.t0,duration=this.target.options[this.prepared.name].inertia.smoothEndDuration;if(t<duration){inertiaStatus.sx=easeOutQuad(t,0,inertiaStatus.xe,duration);inertiaStatus.sy=easeOutQuad(t,0,inertiaStatus.ye,duration);this.pointerMove(inertiaStatus.startEvent,inertiaStatus.startEvent);inertiaStatus.i=reqFrame(this.boundSmoothEndFrame)}else{inertiaStatus.ending=true;inertiaStatus.sx=inertiaStatus.xe;inertiaStatus.sy=inertiaStatus.ye;this.pointerMove(inertiaStatus.startEvent,inertiaStatus.startEvent);this.pointerEnd(inertiaStatus.startEvent,inertiaStatus.startEvent);inertiaStatus.smoothEnd=inertiaStatus.active=inertiaStatus.ending=false}},addPointer:function(pointer){var id=getPointerId(pointer),index=this.mouse?0:indexOf(this.pointerIds,id);if(index===-1){index=this.pointerIds.length}this.pointerIds[index]=id;this.pointers[index]=pointer;return index},removePointer:function(pointer){var id=getPointerId(pointer),index=this.mouse?0:indexOf(this.pointerIds,id);if(index===-1){return}this.pointers.splice(index,1);this.pointerIds.splice(index,1);this.downTargets.splice(index,1);this.downTimes.splice(index,1);this.holdTimers.splice(index,1)},recordPointer:function(pointer){var index=this.mouse?0:indexOf(this.pointerIds,getPointerId(pointer));if(index===-1){return}this.pointers[index]=pointer},collectEventTargets:function(pointer,event,eventTarget,eventType){var pointerIndex=this.mouse?0:indexOf(this.pointerIds,getPointerId(pointer));if(eventType==="tap"&&(this.pointerWasMoved||!(this.downTargets[pointerIndex]&&this.downTargets[pointerIndex]===eventTarget))){return}var targets=[],elements=[],element=eventTarget;function collectSelectors(interactable,selector,context){var els=ie8MatchesSelector?context.querySelectorAll(selector):undefined;if(interactable._iEvents[eventType]&&isElement(element)&&inContext(interactable,element)&&!testIgnore(interactable,element,eventTarget)&&testAllow(interactable,element,eventTarget)&&matchesSelector(element,selector,els)){targets.push(interactable);elements.push(element)}}while(element){if(interact.isSet(element)&&interact(element)._iEvents[eventType]){targets.push(interact(element));elements.push(element)}interactables.forEachSelector(collectSelectors);element=parentElement(element)}if(targets.length||eventType==="tap"){this.firePointers(pointer,event,eventTarget,targets,elements,eventType)}},firePointers:function(pointer,event,eventTarget,targets,elements,eventType){var pointerIndex=this.mouse?0:indexOf(this.pointerIds,getPointerId(pointer)),pointerEvent={},i,interval,createNewDoubleTap;if(eventType==="doubletap"){pointerEvent=pointer}else{pointerExtend(pointerEvent,event);if(event!==pointer){pointerExtend(pointerEvent,pointer)}pointerEvent.preventDefault=preventOriginalDefault;pointerEvent.stopPropagation=InteractEvent.prototype.stopPropagation;pointerEvent.stopImmediatePropagation=InteractEvent.prototype.stopImmediatePropagation;pointerEvent.interaction=this;pointerEvent.timeStamp=(new Date).getTime();pointerEvent.originalEvent=event;pointerEvent.originalPointer=pointer;pointerEvent.type=eventType;pointerEvent.pointerId=getPointerId(pointer);pointerEvent.pointerType=this.mouse?"mouse":!supportsPointerEvent?"touch":isString(pointer.pointerType)?pointer.pointerType:[,,"touch","pen","mouse"][pointer.pointerType]}if(eventType==="tap"){pointerEvent.dt=pointerEvent.timeStamp-this.downTimes[pointerIndex];interval=pointerEvent.timeStamp-this.tapTime;createNewDoubleTap=!!(this.prevTap&&this.prevTap.type!=="doubletap"&&this.prevTap.target===pointerEvent.target&&interval<500);pointerEvent.double=createNewDoubleTap;this.tapTime=pointerEvent.timeStamp}for(i=0;i<targets.length;i++){pointerEvent.currentTarget=elements[i];pointerEvent.interactable=targets[i];targets[i].fire(pointerEvent);if(pointerEvent.immediatePropagationStopped||pointerEvent.propagationStopped&&elements[i+1]!==pointerEvent.currentTarget){break}}if(createNewDoubleTap){var doubleTap={};extend(doubleTap,pointerEvent);doubleTap.dt=interval;doubleTap.type="doubletap";this.collectEventTargets(doubleTap,event,eventTarget,"doubletap");this.prevTap=doubleTap}else if(eventType==="tap"){this.prevTap=pointerEvent}},validateSelector:function(pointer,event,matches,matchElements){for(var i=0,len=matches.length;i<len;i++){var match=matches[i],matchElement=matchElements[i],action=validateAction(match.getAction(pointer,event,this,matchElement),match);if(action&&withinInteractionLimit(match,matchElement,action)){this.target=match;this.element=matchElement;return action}}},setSnapping:function(pageCoords,status){var snap=this.target.options[this.prepared.name].snap,targets=[],target,page,i;status=status||this.snapStatus;if(status.useStatusXY){page={x:status.x,y:status.y}}else{var origin=getOriginXY(this.target,this.element);page=extend({},pageCoords);page.x-=origin.x;page.y-=origin.y}status.realX=page.x;status.realY=page.y;page.x=page.x-this.inertiaStatus.resumeDx;page.y=page.y-this.inertiaStatus.resumeDy;var len=snap.targets?snap.targets.length:0;for(var relIndex=0;relIndex<this.snapOffsets.length;relIndex++){var relative={x:page.x-this.snapOffsets[relIndex].x,y:page.y-this.snapOffsets[relIndex].y};for(i=0;i<len;i++){if(isFunction(snap.targets[i])){target=snap.targets[i](relative.x,relative.y,this)}else{target=snap.targets[i]}if(!target){continue}targets.push({x:isNumber(target.x)?target.x+this.snapOffsets[relIndex].x:relative.x,y:isNumber(target.y)?target.y+this.snapOffsets[relIndex].y:relative.y,range:isNumber(target.range)?target.range:snap.range})}}var closest={target:null,inRange:false,distance:0,range:0,dx:0,dy:0};for(i=0,len=targets.length;i<len;i++){target=targets[i];var range=target.range,dx=target.x-page.x,dy=target.y-page.y,distance=hypot(dx,dy),inRange=distance<=range;if(range===Infinity&&closest.inRange&&closest.range!==Infinity){inRange=false}if(!closest.target||(inRange?closest.inRange&&range!==Infinity?distance/range<closest.distance/closest.range:range===Infinity&&closest.range!==Infinity||distance<closest.distance:!closest.inRange&&distance<closest.distance)){if(range===Infinity){inRange=true}closest.target=target;closest.distance=distance;closest.range=range;closest.inRange=inRange;closest.dx=dx;closest.dy=dy;status.range=range}}var snapChanged;if(closest.target){snapChanged=status.snappedX!==closest.target.x||status.snappedY!==closest.target.y;status.snappedX=closest.target.x;status.snappedY=closest.target.y}else{snapChanged=true;status.snappedX=NaN;status.snappedY=NaN}status.dx=closest.dx;status.dy=closest.dy;status.changed=snapChanged||closest.inRange&&!status.locked;status.locked=closest.inRange;return status},setRestriction:function(pageCoords,status){var target=this.target,restrict=target&&target.options[this.prepared.name].restrict,restriction=restrict&&restrict.restriction,page;if(!restriction){return status}status=status||this.restrictStatus;page=status.useStatusXY?page={x:status.x,y:status.y}:page=extend({},pageCoords);if(status.snap&&status.snap.locked){page.x+=status.snap.dx||0;page.y+=status.snap.dy||0}page.x-=this.inertiaStatus.resumeDx;page.y-=this.inertiaStatus.resumeDy;status.dx=0;status.dy=0;status.restricted=false;var rect,restrictedX,restrictedY;if(isString(restriction)){if(restriction==="parent"){restriction=parentElement(this.element)}else if(restriction==="self"){restriction=target.getRect(this.element)}else{restriction=closest(this.element,restriction)}if(!restriction){return status}}if(isFunction(restriction)){restriction=restriction(page.x,page.y,this.element)}if(isElement(restriction)){restriction=getElementRect(restriction)}rect=restriction;if(!restriction){restrictedX=page.x;restrictedY=page.y}else if("x"in restriction&&"y"in restriction){restrictedX=Math.max(Math.min(rect.x+rect.width-this.restrictOffset.right,page.x),rect.x+this.restrictOffset.left);restrictedY=Math.max(Math.min(rect.y+rect.height-this.restrictOffset.bottom,page.y),rect.y+this.restrictOffset.top)}else{restrictedX=Math.max(Math.min(rect.right-this.restrictOffset.right,page.x),rect.left+this.restrictOffset.left);restrictedY=Math.max(Math.min(rect.bottom-this.restrictOffset.bottom,page.y),rect.top+this.restrictOffset.top)}status.dx=restrictedX-page.x;status.dy=restrictedY-page.y;status.changed=status.restrictedX!==restrictedX||status.restrictedY!==restrictedY;status.restricted=!!(status.dx||status.dy);status.restrictedX=restrictedX;status.restrictedY=restrictedY;return status},checkAndPreventDefault:function(event,interactable,element){if(!(interactable=interactable||this.target)){return}var options=interactable.options,prevent=options.preventDefault;if(prevent==="auto"&&element&&!/^(input|select|textarea)$/i.test(event.target.nodeName)){if(/down|start/i.test(event.type)&&this.prepared.name==="drag"&&options.drag.axis!=="xy"){return}if(options[this.prepared.name]&&options[this.prepared.name].manualStart&&!this.interacting()){return}event.preventDefault();return}if(prevent==="always"){event.preventDefault();return}},calcInertia:function(status){var inertiaOptions=this.target.options[this.prepared.name].inertia,lambda=inertiaOptions.resistance,inertiaDur=-Math.log(inertiaOptions.endSpeed/status.v0)/lambda;status.x0=this.prevEvent.pageX;status.y0=this.prevEvent.pageY;status.t0=status.startEvent.timeStamp/1e3;status.sx=status.sy=0;status.modifiedXe=status.xe=(status.vx0-inertiaDur)/lambda;status.modifiedYe=status.ye=(status.vy0-inertiaDur)/lambda;status.te=inertiaDur;status.lambda_v0=lambda/status.v0;status.one_ve_v0=1-inertiaOptions.endSpeed/status.v0},autoScrollMove:function(pointer){if(!(this.interacting()&&checkAutoScroll(this.target,this.prepared.name))){return}if(this.inertiaStatus.active){autoScroll.x=autoScroll.y=0;return}var top,right,bottom,left,options=this.target.options[this.prepared.name].autoScroll,container=options.container||getWindow(this.element);if(isWindow(container)){left=pointer.clientX<autoScroll.margin;top=pointer.clientY<autoScroll.margin;right=pointer.clientX>container.innerWidth-autoScroll.margin;bottom=pointer.clientY>container.innerHeight-autoScroll.margin}else{var rect=getElementClientRect(container);left=pointer.clientX<rect.left+autoScroll.margin;top=pointer.clientY<rect.top+autoScroll.margin;right=pointer.clientX>rect.right-autoScroll.margin;bottom=pointer.clientY>rect.bottom-autoScroll.margin}autoScroll.x=right?1:left?-1:0;autoScroll.y=bottom?1:top?-1:0;if(!autoScroll.isScrolling){autoScroll.margin=options.margin;autoScroll.speed=options.speed;autoScroll.start(this)}},_updateEventTargets:function(target,currentTarget){this._eventTarget=target;this._curEventTarget=currentTarget}};function getInteractionFromPointer(pointer,eventType,eventTarget){var i=0,len=interactions.length,mouseEvent=/mouse/i.test(pointer.pointerType||eventType)||pointer.pointerType===4,interaction;var id=getPointerId(pointer);if(/down|start/i.test(eventType)){for(i=0;i<len;i++){interaction=interactions[i];var element=eventTarget;if(interaction.inertiaStatus.active&&interaction.target.options[interaction.prepared.name].inertia.allowResume&&interaction.mouse===mouseEvent){while(element){if(element===interaction.element){return interaction}element=parentElement(element)}}}}if(mouseEvent||!(supportsTouch||supportsPointerEvent)){for(i=0;i<len;i++){if(interactions[i].mouse&&!interactions[i].inertiaStatus.active){return interactions[i]}}for(i=0;i<len;i++){if(interactions[i].mouse&&!(/down/.test(eventType)&&interactions[i].inertiaStatus.active)){return interaction}}interaction=new Interaction;interaction.mouse=true;return interaction}for(i=0;i<len;i++){if(contains(interactions[i].pointerIds,id)){return interactions[i]}}if(/up|end|out/i.test(eventType)){return null}for(i=0;i<len;i++){interaction=interactions[i];if((!interaction.prepared.name||interaction.target.options.gesture.enabled)&&!interaction.interacting()&&!(!mouseEvent&&interaction.mouse)){return interaction}}return new Interaction}function doOnInteractions(method){return function(event){var interaction,eventTarget=getActualElement(event.path?event.path[0]:event.target),curEventTarget=getActualElement(event.currentTarget),i;if(supportsTouch&&/touch/.test(event.type)){prevTouchTime=(new Date).getTime();for(i=0;i<event.changedTouches.length;i++){var pointer=event.changedTouches[i];interaction=getInteractionFromPointer(pointer,event.type,eventTarget);if(!interaction){
continue}interaction._updateEventTargets(eventTarget,curEventTarget);interaction[method](pointer,event,eventTarget,curEventTarget)}}else{if(!supportsPointerEvent&&/mouse/.test(event.type)){for(i=0;i<interactions.length;i++){if(!interactions[i].mouse&&interactions[i].pointerIsDown){return}}if((new Date).getTime()-prevTouchTime<500){return}}interaction=getInteractionFromPointer(event,event.type,eventTarget);if(!interaction){return}interaction._updateEventTargets(eventTarget,curEventTarget);interaction[method](event,event,eventTarget,curEventTarget)}}}function InteractEvent(interaction,event,action,phase,element,related){var client,page,target=interaction.target,snapStatus=interaction.snapStatus,restrictStatus=interaction.restrictStatus,pointers=interaction.pointers,deltaSource=(target&&target.options||defaultOptions).deltaSource,sourceX=deltaSource+"X",sourceY=deltaSource+"Y",options=target?target.options:defaultOptions,origin=getOriginXY(target,element),starting=phase==="start",ending=phase==="end",coords=starting?interaction.startCoords:interaction.curCoords;element=element||interaction.element;page=extend({},coords.page);client=extend({},coords.client);page.x-=origin.x;page.y-=origin.y;client.x-=origin.x;client.y-=origin.y;var relativePoints=options[action].snap&&options[action].snap.relativePoints;if(checkSnap(target,action)&&!(starting&&relativePoints&&relativePoints.length)){this.snap={range:snapStatus.range,locked:snapStatus.locked,x:snapStatus.snappedX,y:snapStatus.snappedY,realX:snapStatus.realX,realY:snapStatus.realY,dx:snapStatus.dx,dy:snapStatus.dy};if(snapStatus.locked){page.x+=snapStatus.dx;page.y+=snapStatus.dy;client.x+=snapStatus.dx;client.y+=snapStatus.dy}}if(checkRestrict(target,action)&&!(starting&&options[action].restrict.elementRect)&&restrictStatus.restricted){page.x+=restrictStatus.dx;page.y+=restrictStatus.dy;client.x+=restrictStatus.dx;client.y+=restrictStatus.dy;this.restrict={dx:restrictStatus.dx,dy:restrictStatus.dy}}this.pageX=page.x;this.pageY=page.y;this.clientX=client.x;this.clientY=client.y;this.x0=interaction.startCoords.page.x-origin.x;this.y0=interaction.startCoords.page.y-origin.y;this.clientX0=interaction.startCoords.client.x-origin.x;this.clientY0=interaction.startCoords.client.y-origin.y;this.ctrlKey=event.ctrlKey;this.altKey=event.altKey;this.shiftKey=event.shiftKey;this.metaKey=event.metaKey;this.button=event.button;this.buttons=event.buttons;this.target=element;this.t0=interaction.downTimes[0];this.type=action+(phase||"");this.interaction=interaction;this.interactable=target;var inertiaStatus=interaction.inertiaStatus;if(inertiaStatus.active){this.detail="inertia"}if(related){this.relatedTarget=related}if(ending){if(deltaSource==="client"){this.dx=client.x-interaction.startCoords.client.x;this.dy=client.y-interaction.startCoords.client.y}else{this.dx=page.x-interaction.startCoords.page.x;this.dy=page.y-interaction.startCoords.page.y}}else if(starting){this.dx=0;this.dy=0}else if(phase==="inertiastart"){this.dx=interaction.prevEvent.dx;this.dy=interaction.prevEvent.dy}else{if(deltaSource==="client"){this.dx=client.x-interaction.prevEvent.clientX;this.dy=client.y-interaction.prevEvent.clientY}else{this.dx=page.x-interaction.prevEvent.pageX;this.dy=page.y-interaction.prevEvent.pageY}}if(interaction.prevEvent&&interaction.prevEvent.detail==="inertia"&&!inertiaStatus.active&&options[action].inertia&&options[action].inertia.zeroResumeDelta){inertiaStatus.resumeDx+=this.dx;inertiaStatus.resumeDy+=this.dy;this.dx=this.dy=0}if(action==="resize"&&interaction.resizeAxes){if(options.resize.square){if(interaction.resizeAxes==="y"){this.dx=this.dy}else{this.dy=this.dx}this.axes="xy"}else{this.axes=interaction.resizeAxes;if(interaction.resizeAxes==="x"){this.dy=0}else if(interaction.resizeAxes==="y"){this.dx=0}}}else if(action==="gesture"){this.touches=[pointers[0],pointers[1]];if(starting){this.distance=touchDistance(pointers,deltaSource);this.box=touchBBox(pointers);this.scale=1;this.ds=0;this.angle=touchAngle(pointers,undefined,deltaSource);this.da=0}else if(ending||event instanceof InteractEvent){this.distance=interaction.prevEvent.distance;this.box=interaction.prevEvent.box;this.scale=interaction.prevEvent.scale;this.ds=this.scale-1;this.angle=interaction.prevEvent.angle;this.da=this.angle-interaction.gesture.startAngle}else{this.distance=touchDistance(pointers,deltaSource);this.box=touchBBox(pointers);this.scale=this.distance/interaction.gesture.startDistance;this.angle=touchAngle(pointers,interaction.gesture.prevAngle,deltaSource);this.ds=this.scale-interaction.gesture.prevScale;this.da=this.angle-interaction.gesture.prevAngle}}if(starting){this.timeStamp=interaction.downTimes[0];this.dt=0;this.duration=0;this.speed=0;this.velocityX=0;this.velocityY=0}else if(phase==="inertiastart"){this.timeStamp=interaction.prevEvent.timeStamp;this.dt=interaction.prevEvent.dt;this.duration=interaction.prevEvent.duration;this.speed=interaction.prevEvent.speed;this.velocityX=interaction.prevEvent.velocityX;this.velocityY=interaction.prevEvent.velocityY}else{this.timeStamp=(new Date).getTime();this.dt=this.timeStamp-interaction.prevEvent.timeStamp;this.duration=this.timeStamp-interaction.downTimes[0];if(event instanceof InteractEvent){var dx=this[sourceX]-interaction.prevEvent[sourceX],dy=this[sourceY]-interaction.prevEvent[sourceY],dt=this.dt/1e3;this.speed=hypot(dx,dy)/dt;this.velocityX=dx/dt;this.velocityY=dy/dt}else{this.speed=interaction.pointerDelta[deltaSource].speed;this.velocityX=interaction.pointerDelta[deltaSource].vx;this.velocityY=interaction.pointerDelta[deltaSource].vy}}if((ending||phase==="inertiastart")&&interaction.prevEvent.speed>600&&this.timeStamp-interaction.prevEvent.timeStamp<150){var angle=180*Math.atan2(interaction.prevEvent.velocityY,interaction.prevEvent.velocityX)/Math.PI,overlap=22.5;if(angle<0){angle+=360}var left=135-overlap<=angle&&angle<225+overlap,up=225-overlap<=angle&&angle<315+overlap,right=!left&&(315-overlap<=angle||angle<45+overlap),down=!up&&45-overlap<=angle&&angle<135+overlap;this.swipe={up:up,down:down,left:left,right:right,angle:angle,speed:interaction.prevEvent.speed,velocity:{x:interaction.prevEvent.velocityX,y:interaction.prevEvent.velocityY}}}}InteractEvent.prototype={preventDefault:blank,stopImmediatePropagation:function(){this.immediatePropagationStopped=this.propagationStopped=true},stopPropagation:function(){this.propagationStopped=true}};function preventOriginalDefault(){this.originalEvent.preventDefault()}function getActionCursor(action){var cursor="";if(action.name==="drag"){cursor=actionCursors.drag}if(action.name==="resize"){if(action.axis){cursor=actionCursors[action.name+action.axis]}else if(action.edges){var cursorKey="resize",edgeNames=["top","bottom","left","right"];for(var i=0;i<4;i++){if(action.edges[edgeNames[i]]){cursorKey+=edgeNames[i]}}cursor=actionCursors[cursorKey]}}return cursor}function checkResizeEdge(name,value,page,element,interactableElement,rect,margin){if(!value){return false}if(value===true){var width=isNumber(rect.width)?rect.width:rect.right-rect.left,height=isNumber(rect.height)?rect.height:rect.bottom-rect.top;if(width<0){if(name==="left"){name="right"}else if(name==="right"){name="left"}}if(height<0){if(name==="top"){name="bottom"}else if(name==="bottom"){name="top"}}if(name==="left"){return page.x<(width>=0?rect.left:rect.right)+margin}if(name==="top"){return page.y<(height>=0?rect.top:rect.bottom)+margin}if(name==="right"){return page.x>(width>=0?rect.right:rect.left)-margin}if(name==="bottom"){return page.y>(height>=0?rect.bottom:rect.top)-margin}}if(!isElement(element)){return false}return isElement(value)?value===element:matchesUpTo(element,value,interactableElement)}function defaultActionChecker(pointer,interaction,element){var rect=this.getRect(element),shouldResize=false,action=null,resizeAxes=null,resizeEdges,page=extend({},interaction.curCoords.page),options=this.options;if(!rect){return null}if(actionIsEnabled.resize&&options.resize.enabled){var resizeOptions=options.resize;resizeEdges={left:false,right:false,top:false,bottom:false};if(isObject(resizeOptions.edges)){for(var edge in resizeEdges){resizeEdges[edge]=checkResizeEdge(edge,resizeOptions.edges[edge],page,interaction._eventTarget,element,rect,resizeOptions.margin||margin)}resizeEdges.left=resizeEdges.left&&!resizeEdges.right;resizeEdges.top=resizeEdges.top&&!resizeEdges.bottom;shouldResize=resizeEdges.left||resizeEdges.right||resizeEdges.top||resizeEdges.bottom}else{var right=options.resize.axis!=="y"&&page.x>rect.right-margin,bottom=options.resize.axis!=="x"&&page.y>rect.bottom-margin;shouldResize=right||bottom;resizeAxes=(right?"x":"")+(bottom?"y":"")}}action=shouldResize?"resize":actionIsEnabled.drag&&options.drag.enabled?"drag":null;if(actionIsEnabled.gesture&&interaction.pointerIds.length>=2&&!(interaction.dragging||interaction.resizing)){action="gesture"}if(action){return{name:action,axis:resizeAxes,edges:resizeEdges}}return null}function validateAction(action,interactable){if(!isObject(action)){return null}var actionName=action.name,options=interactable.options;if((actionName==="resize"&&options.resize.enabled||actionName==="drag"&&options.drag.enabled||actionName==="gesture"&&options.gesture.enabled)&&actionIsEnabled[actionName]){if(actionName==="resize"||actionName==="resizeyx"){actionName="resizexy"}return action}return null}var listeners={},interactionListeners=["dragStart","dragMove","resizeStart","resizeMove","gestureStart","gestureMove","pointerOver","pointerOut","pointerHover","selectorDown","pointerDown","pointerMove","pointerUp","pointerCancel","pointerEnd","addPointer","removePointer","recordPointer","autoScrollMove"];for(var i=0,len=interactionListeners.length;i<len;i++){var name=interactionListeners[i];listeners[name]=doOnInteractions(name)}function delegateListener(event,useCapture){var fakeEvent={},delegated=delegatedEvents[event.type],eventTarget=getActualElement(event.path?event.path[0]:event.target),element=eventTarget;useCapture=useCapture?true:false;for(var prop in event){fakeEvent[prop]=event[prop]}fakeEvent.originalEvent=event;fakeEvent.preventDefault=preventOriginalDefault;while(isElement(element)){for(var i=0;i<delegated.selectors.length;i++){var selector=delegated.selectors[i],context=delegated.contexts[i];if(matchesSelector(element,selector)&&nodeContains(context,eventTarget)&&nodeContains(context,element)){var listeners=delegated.listeners[i];fakeEvent.currentTarget=element;for(var j=0;j<listeners.length;j++){if(listeners[j][1]===useCapture){listeners[j][0](fakeEvent)}}}}element=parentElement(element)}}function delegateUseCapture(event){return delegateListener.call(this,event,true)}interactables.indexOfElement=function indexOfElement(element,context){context=context||document;for(var i=0;i<this.length;i++){var interactable=this[i];if(interactable.selector===element&&interactable._context===context||!interactable.selector&&interactable._element===element){return i}}return-1};interactables.get=function interactableGet(element,options){return this[this.indexOfElement(element,options&&options.context)]};interactables.forEachSelector=function(callback){for(var i=0;i<this.length;i++){var interactable=this[i];if(!interactable.selector){continue}var ret=callback(interactable,interactable.selector,interactable._context,i,this);if(ret!==undefined){return ret}}};function interact(element,options){return interactables.get(element,options)||new Interactable(element,options)}function Interactable(element,options){this._element=element;this._iEvents=this._iEvents||{};var _window;if(trySelector(element)){this.selector=element;var context=options&&options.context;_window=context?getWindow(context):window;if(context&&(_window.Node?context instanceof _window.Node:isElement(context)||context===_window.document)){this._context=context}}else{_window=getWindow(element);if(isElement(element,_window)){if(supportsPointerEvent){events.add(this._element,pEventTypes.down,listeners.pointerDown);events.add(this._element,pEventTypes.move,listeners.pointerHover)}else{events.add(this._element,"mousedown",listeners.pointerDown);events.add(this._element,"mousemove",listeners.pointerHover);events.add(this._element,"touchstart",listeners.pointerDown);events.add(this._element,"touchmove",listeners.pointerHover)}}}this._doc=_window.document;if(!contains(documents,this._doc)){listenToDocument(this._doc)}interactables.push(this);this.set(options)}Interactable.prototype={setOnEvents:function(action,phases){if(action==="drop"){if(isFunction(phases.ondrop)){this.ondrop=phases.ondrop}if(isFunction(phases.ondropactivate)){this.ondropactivate=phases.ondropactivate}if(isFunction(phases.ondropdeactivate)){this.ondropdeactivate=phases.ondropdeactivate}if(isFunction(phases.ondragenter)){this.ondragenter=phases.ondragenter}if(isFunction(phases.ondragleave)){this.ondragleave=phases.ondragleave}if(isFunction(phases.ondropmove)){this.ondropmove=phases.ondropmove}}else{action="on"+action;if(isFunction(phases.onstart)){this[action+"start"]=phases.onstart}if(isFunction(phases.onmove)){this[action+"move"]=phases.onmove}if(isFunction(phases.onend)){this[action+"end"]=phases.onend}if(isFunction(phases.oninertiastart)){this[action+"inertiastart"]=phases.oninertiastart}}return this},draggable:function(options){if(isObject(options)){this.options.drag.enabled=options.enabled===false?false:true;this.setPerAction("drag",options);this.setOnEvents("drag",options);if(/^x$|^y$|^xy$/.test(options.axis)){this.options.drag.axis=options.axis}else if(options.axis===null){delete this.options.drag.axis}return this}if(isBool(options)){this.options.drag.enabled=options;return this}return this.options.drag},setPerAction:function(action,options){for(var option in options){if(option in defaultOptions[action]){if(isObject(options[option])){this.options[action][option]=extend(this.options[action][option]||{},options[option]);if(isObject(defaultOptions.perAction[option])&&"enabled"in defaultOptions.perAction[option]){this.options[action][option].enabled=options[option].enabled===false?false:true}}else if(isBool(options[option])&&isObject(defaultOptions.perAction[option])){this.options[action][option].enabled=options[option]}else if(options[option]!==undefined){this.options[action][option]=options[option]}}}},dropzone:function(options){if(isObject(options)){this.options.drop.enabled=options.enabled===false?false:true;this.setOnEvents("drop",options);if(/^(pointer|center)$/.test(options.overlap)){this.options.drop.overlap=options.overlap}else if(isNumber(options.overlap)){this.options.drop.overlap=Math.max(Math.min(1,options.overlap),0)}if("accept"in options){this.options.drop.accept=options.accept}if("checker"in options){this.options.drop.checker=options.checker}return this}if(isBool(options)){this.options.drop.enabled=options;return this}return this.options.drop},dropCheck:function(dragEvent,event,draggable,draggableElement,dropElement,rect){var dropped=false;if(!(rect=rect||this.getRect(dropElement))){return this.options.drop.checker?this.options.drop.checker(dragEvent,event,dropped,this,dropElement,draggable,draggableElement):false}var dropOverlap=this.options.drop.overlap;if(dropOverlap==="pointer"){var page=getPageXY(dragEvent),origin=getOriginXY(draggable,draggableElement),horizontal,vertical;page.x+=origin.x;page.y+=origin.y;horizontal=page.x>rect.left&&page.x<rect.right;vertical=page.y>rect.top&&page.y<rect.bottom;dropped=horizontal&&vertical}var dragRect=draggable.getRect(draggableElement);if(dropOverlap==="center"){var cx=dragRect.left+dragRect.width/2,cy=dragRect.top+dragRect.height/2;dropped=cx>=rect.left&&cx<=rect.right&&cy>=rect.top&&cy<=rect.bottom}if(isNumber(dropOverlap)){var overlapArea=Math.max(0,Math.min(rect.right,dragRect.right)-Math.max(rect.left,dragRect.left))*Math.max(0,Math.min(rect.bottom,dragRect.bottom)-Math.max(rect.top,dragRect.top)),overlapRatio=overlapArea/(dragRect.width*dragRect.height);dropped=overlapRatio>=dropOverlap}if(this.options.drop.checker){dropped=this.options.drop.checker(dragEvent,event,dropped,this,dropElement,draggable,draggableElement)}return dropped},dropChecker:function(checker){if(isFunction(checker)){this.options.drop.checker=checker;return this}if(checker===null){delete this.options.getRect;return this}return this.options.drop.checker},accept:function(newValue){if(isElement(newValue)){this.options.drop.accept=newValue;return this}if(trySelector(newValue)){this.options.drop.accept=newValue;return this}if(newValue===null){delete this.options.drop.accept;return this}return this.options.drop.accept},resizable:function(options){if(isObject(options)){this.options.resize.enabled=options.enabled===false?false:true;this.setPerAction("resize",options);this.setOnEvents("resize",options);if(/^x$|^y$|^xy$/.test(options.axis)){this.options.resize.axis=options.axis}else if(options.axis===null){this.options.resize.axis=defaultOptions.resize.axis}if(isBool(options.preserveAspectRatio)){this.options.resize.preserveAspectRatio=options.preserveAspectRatio}else if(isBool(options.square)){this.options.resize.square=options.square}return this}if(isBool(options)){this.options.resize.enabled=options;return this}return this.options.resize},squareResize:function(newValue){if(isBool(newValue)){this.options.resize.square=newValue;return this}if(newValue===null){delete this.options.resize.square;return this}return this.options.resize.square},gesturable:function(options){if(isObject(options)){this.options.gesture.enabled=options.enabled===false?false:true;this.setPerAction("gesture",options);this.setOnEvents("gesture",options);return this}if(isBool(options)){this.options.gesture.enabled=options;return this}return this.options.gesture},autoScroll:function(options){if(isObject(options)){options=extend({actions:["drag","resize"]},options)}else if(isBool(options)){options={actions:["drag","resize"],enabled:options}}return this.setOptions("autoScroll",options)},snap:function(options){var ret=this.setOptions("snap",options);if(ret===this){return this}return ret.drag},setOptions:function(option,options){var actions=options&&isArray(options.actions)?options.actions:["drag"];var i;if(isObject(options)||isBool(options)){for(i=0;i<actions.length;i++){var action=/resize/.test(actions[i])?"resize":actions[i];if(!isObject(this.options[action])){continue}var thisOption=this.options[action][option];if(isObject(options)){extend(thisOption,options);thisOption.enabled=options.enabled===false?false:true;if(option==="snap"){if(thisOption.mode==="grid"){thisOption.targets=[interact.createSnapGrid(extend({offset:thisOption.gridOffset||{x:0,y:0}},thisOption.grid||{}))]}else if(thisOption.mode==="anchor"){thisOption.targets=thisOption.anchors}else if(thisOption.mode==="path"){thisOption.targets=thisOption.paths}if("elementOrigin"in options){thisOption.relativePoints=[options.elementOrigin]}}}else if(isBool(options)){thisOption.enabled=options}}return this}var ret={},allActions=["drag","resize","gesture"];for(i=0;i<allActions.length;i++){if(option in defaultOptions[allActions[i]]){ret[allActions[i]]=this.options[allActions[i]][option]}}return ret},inertia:function(options){var ret=this.setOptions("inertia",options);if(ret===this){return this}return ret.drag},getAction:function(pointer,event,interaction,element){var action=this.defaultActionChecker(pointer,interaction,element);if(this.options.actionChecker){return this.options.actionChecker(pointer,event,action,this,element,interaction)}return action},defaultActionChecker:defaultActionChecker,actionChecker:function(checker){if(isFunction(checker)){this.options.actionChecker=checker;return this}if(checker===null){delete this.options.actionChecker;return this}return this.options.actionChecker},getRect:function rectCheck(element){element=element||this._element;if(this.selector&&!isElement(element)){element=this._context.querySelector(this.selector)}return getElementRect(element)},rectChecker:function(checker){if(isFunction(checker)){this.getRect=checker;return this}if(checker===null){delete this.options.getRect;return this}return this.getRect},styleCursor:function(newValue){if(isBool(newValue)){this.options.styleCursor=newValue;return this}if(newValue===null){delete this.options.styleCursor;return this}return this.options.styleCursor},preventDefault:function(newValue){if(/^(always|never|auto)$/.test(newValue)){this.options.preventDefault=newValue;return this}if(isBool(newValue)){this.options.preventDefault=newValue?"always":"never";return this}return this.options.preventDefault},origin:function(newValue){if(trySelector(newValue)){this.options.origin=newValue;return this}else if(isObject(newValue)){this.options.origin=newValue;return this}return this.options.origin},deltaSource:function(newValue){if(newValue==="page"||newValue==="client"){this.options.deltaSource=newValue;return this}return this.options.deltaSource},restrict:function(options){if(!isObject(options)){return this.setOptions("restrict",options)}var actions=["drag","resize","gesture"],ret;for(var i=0;i<actions.length;i++){var action=actions[i];if(action in options){var perAction=extend({actions:[action],restriction:options[action]},options);ret=this.setOptions("restrict",perAction)}}return ret},context:function(){return this._context},_context:document,ignoreFrom:function(newValue){if(trySelector(newValue)){this.options.ignoreFrom=newValue;return this}if(isElement(newValue)){this.options.ignoreFrom=newValue;return this}return this.options.ignoreFrom},allowFrom:function(newValue){if(trySelector(newValue)){this.options.allowFrom=newValue;return this}if(isElement(newValue)){this.options.allowFrom=newValue;return this}return this.options.allowFrom},element:function(){return this._element},fire:function(iEvent){if(!(iEvent&&iEvent.type)||!contains(eventTypes,iEvent.type)){return this}var listeners,i,len,onEvent="on"+iEvent.type,funcName="";if(iEvent.type in this._iEvents){listeners=this._iEvents[iEvent.type];for(i=0,len=listeners.length;i<len&&!iEvent.immediatePropagationStopped;i++){funcName=listeners[i].name;listeners[i](iEvent)}}if(isFunction(this[onEvent])){funcName=this[onEvent].name;this[onEvent](iEvent)}if(iEvent.type in globalEvents&&(listeners=globalEvents[iEvent.type])){for(i=0,len=listeners.length;i<len&&!iEvent.immediatePropagationStopped;i++){funcName=listeners[i].name;listeners[i](iEvent)}}return this},on:function(eventType,listener,useCapture){var i;if(isString(eventType)&&eventType.search(" ")!==-1){eventType=eventType.trim().split(/ +/)}if(isArray(eventType)){for(i=0;i<eventType.length;i++){this.on(eventType[i],listener,useCapture)}return this}if(isObject(eventType)){for(var prop in eventType){this.on(prop,eventType[prop],listener)}return this}if(eventType==="wheel"){eventType=wheelEvent}useCapture=useCapture?true:false;if(contains(eventTypes,eventType)){if(!(eventType in this._iEvents)){this._iEvents[eventType]=[listener]}else{this._iEvents[eventType].push(listener)}}else if(this.selector){if(!delegatedEvents[eventType]){delegatedEvents[eventType]={selectors:[],contexts:[],listeners:[]};for(i=0;i<documents.length;i++){events.add(documents[i],eventType,delegateListener);events.add(documents[i],eventType,delegateUseCapture,true)}}var delegated=delegatedEvents[eventType],index;for(index=delegated.selectors.length-1;index>=0;index--){if(delegated.selectors[index]===this.selector&&delegated.contexts[index]===this._context){break}}if(index===-1){index=delegated.selectors.length;delegated.selectors.push(this.selector);delegated.contexts.push(this._context);delegated.listeners.push([])}delegated.listeners[index].push([listener,useCapture])}else{events.add(this._element,eventType,listener,useCapture)}return this},off:function(eventType,listener,useCapture){var i;if(isString(eventType)&&eventType.search(" ")!==-1){eventType=eventType.trim().split(/ +/)}if(isArray(eventType)){for(i=0;i<eventType.length;i++){this.off(eventType[i],listener,useCapture)}return this}if(isObject(eventType)){for(var prop in eventType){this.off(prop,eventType[prop],listener)}return this}var eventList,index=-1;useCapture=useCapture?true:false;if(eventType==="wheel"){eventType=wheelEvent}if(contains(eventTypes,eventType)){eventList=this._iEvents[eventType];if(eventList&&(index=indexOf(eventList,listener))!==-1){this._iEvents[eventType].splice(index,1)}}else if(this.selector){var delegated=delegatedEvents[eventType],matchFound=false;if(!delegated){return this}for(index=delegated.selectors.length-1;index>=0;index--){if(delegated.selectors[index]===this.selector&&delegated.contexts[index]===this._context){var listeners=delegated.listeners[index];for(i=listeners.length-1;i>=0;i--){var fn=listeners[i][0],useCap=listeners[i][1];if(fn===listener&&useCap===useCapture){listeners.splice(i,1);if(!listeners.length){delegated.selectors.splice(index,1);delegated.contexts.splice(index,1);delegated.listeners.splice(index,1);events.remove(this._context,eventType,delegateListener);events.remove(this._context,eventType,delegateUseCapture,true);if(!delegated.selectors.length){delegatedEvents[eventType]=null}}matchFound=true;break}}if(matchFound){break}}}}else{events.remove(this._element,eventType,listener,useCapture)}return this},set:function(options){if(!isObject(options)){options={}}this.options=extend({},defaultOptions.base);var i,actions=["drag","drop","resize","gesture"],methods=["draggable","dropzone","resizable","gesturable"],perActions=extend(extend({},defaultOptions.perAction),options[action]||{});for(i=0;i<actions.length;i++){var action=actions[i];this.options[action]=extend({},defaultOptions[action]);this.setPerAction(action,perActions);this[methods[i]](options[action])}var settings=["accept","actionChecker","allowFrom","deltaSource","dropChecker","ignoreFrom","origin","preventDefault","rectChecker","styleCursor"];for(i=0,len=settings.length;i<len;i++){var setting=settings[i];this.options[setting]=defaultOptions.base[setting];if(setting in options){this[setting](options[setting])}}return this},unset:function(){events.remove(this._element,"all");if(!isString(this.selector)){events.remove(this,"all");if(this.options.styleCursor){this._element.style.cursor=""}}else{for(var type in delegatedEvents){var delegated=delegatedEvents[type];for(var i=0;i<delegated.selectors.length;i++){if(delegated.selectors[i]===this.selector&&delegated.contexts[i]===this._context){delegated.selectors.splice(i,1);delegated.contexts.splice(i,1);delegated.listeners.splice(i,1);if(!delegated.selectors.length){delegatedEvents[type]=null}}events.remove(this._context,type,delegateListener);events.remove(this._context,type,delegateUseCapture,true);break}}}this.dropzone(false);interactables.splice(indexOf(interactables,this),1);return interact}};function warnOnce(method,message){var warned=false;return function(){if(!warned){window.console.warn(message);warned=true}return method.apply(this,arguments)}}Interactable.prototype.snap=warnOnce(Interactable.prototype.snap,"Interactable#snap is deprecated. See the new documentation for snapping at http://interactjs.io/docs/snapping");Interactable.prototype.restrict=warnOnce(Interactable.prototype.restrict,"Interactable#restrict is deprecated. See the new documentation for resticting at http://interactjs.io/docs/restriction");Interactable.prototype.inertia=warnOnce(Interactable.prototype.inertia,"Interactable#inertia is deprecated. See the new documentation for inertia at http://interactjs.io/docs/inertia");Interactable.prototype.autoScroll=warnOnce(Interactable.prototype.autoScroll,"Interactable#autoScroll is deprecated. See the new documentation for autoScroll at http://interactjs.io/docs/#autoscroll");Interactable.prototype.squareResize=warnOnce(Interactable.prototype.squareResize,"Interactable#squareResize is deprecated. See http://interactjs.io/docs/#resize-square");Interactable.prototype.accept=warnOnce(Interactable.prototype.accept,"Interactable#accept is deprecated. use Interactable#dropzone({ accept: target }) instead");Interactable.prototype.dropChecker=warnOnce(Interactable.prototype.dropChecker,"Interactable#dropChecker is deprecated. use Interactable#dropzone({ dropChecker: checkerFunction }) instead");Interactable.prototype.context=warnOnce(Interactable.prototype.context,"Interactable#context as a method is deprecated. It will soon be a DOM Node instead");interact.isSet=function(element,options){return interactables.indexOfElement(element,options&&options.context)!==-1};interact.on=function(type,listener,useCapture){if(isString(type)&&type.search(" ")!==-1){type=type.trim().split(/ +/)}if(isArray(type)){for(var i=0;i<type.length;i++){interact.on(type[i],listener,useCapture)}return interact}if(isObject(type)){for(var prop in type){interact.on(prop,type[prop],listener)}return interact}if(contains(eventTypes,type)){if(!globalEvents[type]){globalEvents[type]=[listener]}else{globalEvents[type].push(listener)}}else{events.add(document,type,listener,useCapture)}return interact};interact.off=function(type,listener,useCapture){if(isString(type)&&type.search(" ")!==-1){type=type.trim().split(/ +/)}if(isArray(type)){for(var i=0;i<type.length;i++){interact.off(type[i],listener,useCapture)}return interact}if(isObject(type)){for(var prop in type){interact.off(prop,type[prop],listener)}return interact}if(!contains(eventTypes,type)){events.remove(document,type,listener,useCapture)}else{var index;if(type in globalEvents&&(index=indexOf(globalEvents[type],listener))!==-1){globalEvents[type].splice(index,1)}}return interact};interact.enableDragging=warnOnce(function(newValue){if(newValue!==null&&newValue!==undefined){actionIsEnabled.drag=newValue;return interact}return actionIsEnabled.drag},"interact.enableDragging is deprecated and will soon be removed.");interact.enableResizing=warnOnce(function(newValue){if(newValue!==null&&newValue!==undefined){actionIsEnabled.resize=newValue;return interact}return actionIsEnabled.resize},"interact.enableResizing is deprecated and will soon be removed.");interact.enableGesturing=warnOnce(function(newValue){if(newValue!==null&&newValue!==undefined){actionIsEnabled.gesture=newValue;return interact}return actionIsEnabled.gesture},"interact.enableGesturing is deprecated and will soon be removed.");interact.eventTypes=eventTypes;interact.debug=function(){var interaction=interactions[0]||new Interaction;return{interactions:interactions,target:interaction.target,dragging:interaction.dragging,resizing:interaction.resizing,gesturing:interaction.gesturing,prepared:interaction.prepared,matches:interaction.matches,matchElements:interaction.matchElements,prevCoords:interaction.prevCoords,startCoords:interaction.startCoords,pointerIds:interaction.pointerIds,pointers:interaction.pointers,addPointer:listeners.addPointer,removePointer:listeners.removePointer,recordPointer:listeners.recordPointer,snap:interaction.snapStatus,restrict:interaction.restrictStatus,inertia:interaction.inertiaStatus,downTime:interaction.downTimes[0],downEvent:interaction.downEvent,downPointer:interaction.downPointer,prevEvent:interaction.prevEvent,Interactable:Interactable,interactables:interactables,pointerIsDown:interaction.pointerIsDown,defaultOptions:defaultOptions,defaultActionChecker:defaultActionChecker,actionCursors:actionCursors,dragMove:listeners.dragMove,resizeMove:listeners.resizeMove,gestureMove:listeners.gestureMove,pointerUp:listeners.pointerUp,pointerDown:listeners.pointerDown,pointerMove:listeners.pointerMove,pointerHover:listeners.pointerHover,eventTypes:eventTypes,events:events,globalEvents:globalEvents,delegatedEvents:delegatedEvents,prefixedPropREs:prefixedPropREs}};interact.getPointerAverage=pointerAverage;interact.getTouchBBox=touchBBox;interact.getTouchDistance=touchDistance;interact.getTouchAngle=touchAngle;interact.getElementRect=getElementRect;interact.getElementClientRect=getElementClientRect;interact.matchesSelector=matchesSelector;interact.closest=closest;interact.margin=warnOnce(function(newvalue){if(isNumber(newvalue)){margin=newvalue;return interact}return margin;
},"interact.margin is deprecated. Use interact(target).resizable({ margin: number }); instead.");interact.supportsTouch=function(){return supportsTouch};interact.supportsPointerEvent=function(){return supportsPointerEvent};interact.stop=function(event){for(var i=interactions.length-1;i>=0;i--){interactions[i].stop(event)}return interact};interact.dynamicDrop=function(newValue){if(isBool(newValue)){dynamicDrop=newValue;return interact}return dynamicDrop};interact.pointerMoveTolerance=function(newValue){if(isNumber(newValue)){pointerMoveTolerance=newValue;return this}return pointerMoveTolerance};interact.maxInteractions=function(newValue){if(isNumber(newValue)){maxInteractions=newValue;return this}return maxInteractions};interact.createSnapGrid=function(grid){return function(x,y){var offsetX=0,offsetY=0;if(isObject(grid.offset)){offsetX=grid.offset.x;offsetY=grid.offset.y}var gridx=Math.round((x-offsetX)/grid.x),gridy=Math.round((y-offsetY)/grid.y),newX=gridx*grid.x+offsetX,newY=gridy*grid.y+offsetY;return{x:newX,y:newY,range:grid.range}}};function endAllInteractions(event){for(var i=0;i<interactions.length;i++){interactions[i].pointerEnd(event,event)}}function listenToDocument(doc){if(contains(documents,doc)){return}var win=doc.defaultView||doc.parentWindow;for(var eventType in delegatedEvents){events.add(doc,eventType,delegateListener);events.add(doc,eventType,delegateUseCapture,true)}if(supportsPointerEvent){if(PointerEvent===win.MSPointerEvent){pEventTypes={up:"MSPointerUp",down:"MSPointerDown",over:"mouseover",out:"mouseout",move:"MSPointerMove",cancel:"MSPointerCancel"}}else{pEventTypes={up:"pointerup",down:"pointerdown",over:"pointerover",out:"pointerout",move:"pointermove",cancel:"pointercancel"}}events.add(doc,pEventTypes.down,listeners.selectorDown);events.add(doc,pEventTypes.move,listeners.pointerMove);events.add(doc,pEventTypes.over,listeners.pointerOver);events.add(doc,pEventTypes.out,listeners.pointerOut);events.add(doc,pEventTypes.up,listeners.pointerUp);events.add(doc,pEventTypes.cancel,listeners.pointerCancel);events.add(doc,pEventTypes.move,listeners.autoScrollMove)}else{events.add(doc,"mousedown",listeners.selectorDown);events.add(doc,"mousemove",listeners.pointerMove);events.add(doc,"mouseup",listeners.pointerUp);events.add(doc,"mouseover",listeners.pointerOver);events.add(doc,"mouseout",listeners.pointerOut);events.add(doc,"touchstart",listeners.selectorDown);events.add(doc,"touchmove",listeners.pointerMove);events.add(doc,"touchend",listeners.pointerUp);events.add(doc,"touchcancel",listeners.pointerCancel);events.add(doc,"mousemove",listeners.autoScrollMove);events.add(doc,"touchmove",listeners.autoScrollMove)}events.add(win,"blur",endAllInteractions);try{if(win.frameElement){var parentDoc=win.frameElement.ownerDocument,parentWindow=parentDoc.defaultView;events.add(parentDoc,"mouseup",listeners.pointerEnd);events.add(parentDoc,"touchend",listeners.pointerEnd);events.add(parentDoc,"touchcancel",listeners.pointerEnd);events.add(parentDoc,"pointerup",listeners.pointerEnd);events.add(parentDoc,"MSPointerUp",listeners.pointerEnd);events.add(parentWindow,"blur",endAllInteractions)}}catch(error){interact.windowParentError=error}events.add(doc,"dragstart",function(event){for(var i=0;i<interactions.length;i++){var interaction=interactions[i];if(interaction.element&&(interaction.element===event.target||nodeContains(interaction.element,event.target))){interaction.checkAndPreventDefault(event,interaction.target,interaction.element);return}}});if(events.useAttachEvent){events.add(doc,"selectstart",function(event){var interaction=interactions[0];if(interaction.currentAction()){interaction.checkAndPreventDefault(event)}});events.add(doc,"dblclick",doOnInteractions("ie8Dblclick"))}documents.push(doc)}listenToDocument(document);function indexOf(array,target){for(var i=0,len=array.length;i<len;i++){if(array[i]===target){return i}}return-1}function contains(array,target){return indexOf(array,target)!==-1}function matchesSelector(element,selector,nodeList){if(ie8MatchesSelector){return ie8MatchesSelector(element,selector,nodeList)}if(window!==realWindow){selector=selector.replace(/\/deep\//g," ")}return element[prefixedMatchesSelector](selector)}function matchesUpTo(element,selector,limit){while(isElement(element)){if(matchesSelector(element,selector)){return true}element=parentElement(element);if(element===limit){return matchesSelector(element,selector)}}return false}if(!(prefixedMatchesSelector in Element.prototype)||!isFunction(Element.prototype[prefixedMatchesSelector])){ie8MatchesSelector=function(element,selector,elems){elems=elems||element.parentNode.querySelectorAll(selector);for(var i=0,len=elems.length;i<len;i++){if(elems[i]===element){return true}}return false}}(function(){var lastTime=0,vendors=["ms","moz","webkit","o"];for(var x=0;x<vendors.length&&!realWindow.requestAnimationFrame;++x){reqFrame=realWindow[vendors[x]+"RequestAnimationFrame"];cancelFrame=realWindow[vendors[x]+"CancelAnimationFrame"]||realWindow[vendors[x]+"CancelRequestAnimationFrame"]}if(!reqFrame){reqFrame=function(callback){var currTime=(new Date).getTime(),timeToCall=Math.max(0,16-(currTime-lastTime)),id=setTimeout(function(){callback(currTime+timeToCall)},timeToCall);lastTime=currTime+timeToCall;return id}}if(!cancelFrame){cancelFrame=function(id){clearTimeout(id)}}})();if(typeof exports!=="undefined"){if(typeof module!=="undefined"&&module.exports){exports=module.exports=interact}exports.interact=interact}else if(typeof define==="function"&&define.amd){define("interact",function(){return interact})}else{realWindow.interact=interact}})(typeof window==="undefined"?undefined:window);
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