/inventoryBrowser/node_modules/jquery-ui/ui/widgets/autocomplete.js |
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/*! |
* jQuery UI Autocomplete 1.12.1 |
* http://jqueryui.com |
* |
* Copyright jQuery Foundation and other contributors |
* Released under the MIT license. |
* http://jquery.org/license |
*/ |
|
//>>label: Autocomplete |
//>>group: Widgets |
//>>description: Lists suggested words as the user is typing. |
//>>docs: http://api.jqueryui.com/autocomplete/ |
//>>demos: http://jqueryui.com/autocomplete/ |
//>>css.structure: ../../themes/base/core.css |
//>>css.structure: ../../themes/base/autocomplete.css |
//>>css.theme: ../../themes/base/theme.css |
|
( function( factory ) { |
if ( typeof define === "function" && define.amd ) { |
|
// AMD. Register as an anonymous module. |
define( [ |
"jquery", |
"./menu", |
"../keycode", |
"../position", |
"../safe-active-element", |
"../version", |
"../widget" |
], factory ); |
} else { |
|
// Browser globals |
factory( jQuery ); |
} |
}( function( $ ) { |
|
$.widget( "ui.autocomplete", { |
version: "1.12.1", |
defaultElement: "<input>", |
options: { |
appendTo: null, |
autoFocus: false, |
delay: 300, |
minLength: 1, |
position: { |
my: "left top", |
at: "left bottom", |
collision: "none" |
}, |
source: null, |
|
// Callbacks |
change: null, |
close: null, |
focus: null, |
open: null, |
response: null, |
search: null, |
select: null |
}, |
|
requestIndex: 0, |
pending: 0, |
|
_create: function() { |
|
// Some browsers only repeat keydown events, not keypress events, |
// so we use the suppressKeyPress flag to determine if we've already |
// handled the keydown event. #7269 |
// Unfortunately the code for & in keypress is the same as the up arrow, |
// so we use the suppressKeyPressRepeat flag to avoid handling keypress |
// events when we know the keydown event was used to modify the |
// search term. #7799 |
var suppressKeyPress, suppressKeyPressRepeat, suppressInput, |
nodeName = this.element[ 0 ].nodeName.toLowerCase(), |
isTextarea = nodeName === "textarea", |
isInput = nodeName === "input"; |
|
// Textareas are always multi-line |
// Inputs are always single-line, even if inside a contentEditable element |
// IE also treats inputs as contentEditable |
// All other element types are determined by whether or not they're contentEditable |
this.isMultiLine = isTextarea || !isInput && this._isContentEditable( this.element ); |
|
this.valueMethod = this.element[ isTextarea || isInput ? "val" : "text" ]; |
this.isNewMenu = true; |
|
this._addClass( "ui-autocomplete-input" ); |
this.element.attr( "autocomplete", "off" ); |
|
this._on( this.element, { |
keydown: function( event ) { |
if ( this.element.prop( "readOnly" ) ) { |
suppressKeyPress = true; |
suppressInput = true; |
suppressKeyPressRepeat = true; |
return; |
} |
|
suppressKeyPress = false; |
suppressInput = false; |
suppressKeyPressRepeat = false; |
var keyCode = $.ui.keyCode; |
switch ( event.keyCode ) { |
case keyCode.PAGE_UP: |
suppressKeyPress = true; |
this._move( "previousPage", event ); |
break; |
case keyCode.PAGE_DOWN: |
suppressKeyPress = true; |
this._move( "nextPage", event ); |
break; |
case keyCode.UP: |
suppressKeyPress = true; |
this._keyEvent( "previous", event ); |
break; |
case keyCode.DOWN: |
suppressKeyPress = true; |
this._keyEvent( "next", event ); |
break; |
case keyCode.ENTER: |
|
// when menu is open and has focus |
if ( this.menu.active ) { |
|
// #6055 - Opera still allows the keypress to occur |
// which causes forms to submit |
suppressKeyPress = true; |
event.preventDefault(); |
this.menu.select( event ); |
} |
break; |
case keyCode.TAB: |
if ( this.menu.active ) { |
this.menu.select( event ); |
} |
break; |
case keyCode.ESCAPE: |
if ( this.menu.element.is( ":visible" ) ) { |
if ( !this.isMultiLine ) { |
this._value( this.term ); |
} |
this.close( event ); |
|
// Different browsers have different default behavior for escape |
// Single press can mean undo or clear |
// Double press in IE means clear the whole form |
event.preventDefault(); |
} |
break; |
default: |
suppressKeyPressRepeat = true; |
|
// search timeout should be triggered before the input value is changed |
this._searchTimeout( event ); |
break; |
} |
}, |
keypress: function( event ) { |
if ( suppressKeyPress ) { |
suppressKeyPress = false; |
if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) { |
event.preventDefault(); |
} |
return; |
} |
if ( suppressKeyPressRepeat ) { |
return; |
} |
|
// Replicate some key handlers to allow them to repeat in Firefox and Opera |
var keyCode = $.ui.keyCode; |
switch ( event.keyCode ) { |
case keyCode.PAGE_UP: |
this._move( "previousPage", event ); |
break; |
case keyCode.PAGE_DOWN: |
this._move( "nextPage", event ); |
break; |
case keyCode.UP: |
this._keyEvent( "previous", event ); |
break; |
case keyCode.DOWN: |
this._keyEvent( "next", event ); |
break; |
} |
}, |
input: function( event ) { |
if ( suppressInput ) { |
suppressInput = false; |
event.preventDefault(); |
return; |
} |
this._searchTimeout( event ); |
}, |
focus: function() { |
this.selectedItem = null; |
this.previous = this._value(); |
}, |
blur: function( event ) { |
if ( this.cancelBlur ) { |
delete this.cancelBlur; |
return; |
} |
|
clearTimeout( this.searching ); |
this.close( event ); |
this._change( event ); |
} |
} ); |
|
this._initSource(); |
this.menu = $( "<ul>" ) |
.appendTo( this._appendTo() ) |
.menu( { |
|
// disable ARIA support, the live region takes care of that |
role: null |
} ) |
.hide() |
.menu( "instance" ); |
|
this._addClass( this.menu.element, "ui-autocomplete", "ui-front" ); |
this._on( this.menu.element, { |
mousedown: function( event ) { |
|
// prevent moving focus out of the text field |
event.preventDefault(); |
|
// IE doesn't prevent moving focus even with event.preventDefault() |
// so we set a flag to know when we should ignore the blur event |
this.cancelBlur = true; |
this._delay( function() { |
delete this.cancelBlur; |
|
// Support: IE 8 only |
// Right clicking a menu item or selecting text from the menu items will |
// result in focus moving out of the input. However, we've already received |
// and ignored the blur event because of the cancelBlur flag set above. So |
// we restore focus to ensure that the menu closes properly based on the user's |
// next actions. |
if ( this.element[ 0 ] !== $.ui.safeActiveElement( this.document[ 0 ] ) ) { |
this.element.trigger( "focus" ); |
} |
} ); |
}, |
menufocus: function( event, ui ) { |
var label, item; |
|
// support: Firefox |
// Prevent accidental activation of menu items in Firefox (#7024 #9118) |
if ( this.isNewMenu ) { |
this.isNewMenu = false; |
if ( event.originalEvent && /^mouse/.test( event.originalEvent.type ) ) { |
this.menu.blur(); |
|
this.document.one( "mousemove", function() { |
$( event.target ).trigger( event.originalEvent ); |
} ); |
|
return; |
} |
} |
|
item = ui.item.data( "ui-autocomplete-item" ); |
if ( false !== this._trigger( "focus", event, { item: item } ) ) { |
|
// use value to match what will end up in the input, if it was a key event |
if ( event.originalEvent && /^key/.test( event.originalEvent.type ) ) { |
this._value( item.value ); |
} |
} |
|
// Announce the value in the liveRegion |
label = ui.item.attr( "aria-label" ) || item.value; |
if ( label && $.trim( label ).length ) { |
this.liveRegion.children().hide(); |
$( "<div>" ).text( label ).appendTo( this.liveRegion ); |
} |
}, |
menuselect: function( event, ui ) { |
var item = ui.item.data( "ui-autocomplete-item" ), |
previous = this.previous; |
|
// Only trigger when focus was lost (click on menu) |
if ( this.element[ 0 ] !== $.ui.safeActiveElement( this.document[ 0 ] ) ) { |
this.element.trigger( "focus" ); |
this.previous = previous; |
|
// #6109 - IE triggers two focus events and the second |
// is asynchronous, so we need to reset the previous |
// term synchronously and asynchronously :-( |
this._delay( function() { |
this.previous = previous; |
this.selectedItem = item; |
} ); |
} |
|
if ( false !== this._trigger( "select", event, { item: item } ) ) { |
this._value( item.value ); |
} |
|
// reset the term after the select event |
// this allows custom select handling to work properly |
this.term = this._value(); |
|
this.close( event ); |
this.selectedItem = item; |
} |
} ); |
|
this.liveRegion = $( "<div>", { |
role: "status", |
"aria-live": "assertive", |
"aria-relevant": "additions" |
} ) |
.appendTo( this.document[ 0 ].body ); |
|
this._addClass( this.liveRegion, null, "ui-helper-hidden-accessible" ); |
|
// Turning off autocomplete prevents the browser from remembering the |
// value when navigating through history, so we re-enable autocomplete |
// if the page is unloaded before the widget is destroyed. #7790 |
this._on( this.window, { |
beforeunload: function() { |
this.element.removeAttr( "autocomplete" ); |
} |
} ); |
}, |
|
_destroy: function() { |
clearTimeout( this.searching ); |
this.element.removeAttr( "autocomplete" ); |
this.menu.element.remove(); |
this.liveRegion.remove(); |
}, |
|
_setOption: function( key, value ) { |
this._super( key, value ); |
if ( key === "source" ) { |
this._initSource(); |
} |
if ( key === "appendTo" ) { |
this.menu.element.appendTo( this._appendTo() ); |
} |
if ( key === "disabled" && value && this.xhr ) { |
this.xhr.abort(); |
} |
}, |
|
_isEventTargetInWidget: function( event ) { |
var menuElement = this.menu.element[ 0 ]; |
|
return event.target === this.element[ 0 ] || |
event.target === menuElement || |
$.contains( menuElement, event.target ); |
}, |
|
_closeOnClickOutside: function( event ) { |
if ( !this._isEventTargetInWidget( event ) ) { |
this.close(); |
} |
}, |
|
_appendTo: function() { |
var element = this.options.appendTo; |
|
if ( element ) { |
element = element.jquery || element.nodeType ? |
$( element ) : |
this.document.find( element ).eq( 0 ); |
} |
|
if ( !element || !element[ 0 ] ) { |
element = this.element.closest( ".ui-front, dialog" ); |
} |
|
if ( !element.length ) { |
element = this.document[ 0 ].body; |
} |
|
return element; |
}, |
|
_initSource: function() { |
var array, url, |
that = this; |
if ( $.isArray( this.options.source ) ) { |
array = this.options.source; |
this.source = function( request, response ) { |
response( $.ui.autocomplete.filter( array, request.term ) ); |
}; |
} else if ( typeof this.options.source === "string" ) { |
url = this.options.source; |
this.source = function( request, response ) { |
if ( that.xhr ) { |
that.xhr.abort(); |
} |
that.xhr = $.ajax( { |
url: url, |
data: request, |
dataType: "json", |
success: function( data ) { |
response( data ); |
}, |
error: function() { |
response( [] ); |
} |
} ); |
}; |
} else { |
this.source = this.options.source; |
} |
}, |
|
_searchTimeout: function( event ) { |
clearTimeout( this.searching ); |
this.searching = this._delay( function() { |
|
// Search if the value has changed, or if the user retypes the same value (see #7434) |
var equalValues = this.term === this._value(), |
menuVisible = this.menu.element.is( ":visible" ), |
modifierKey = event.altKey || event.ctrlKey || event.metaKey || event.shiftKey; |
|
if ( !equalValues || ( equalValues && !menuVisible && !modifierKey ) ) { |
this.selectedItem = null; |
this.search( null, event ); |
} |
}, this.options.delay ); |
}, |
|
search: function( value, event ) { |
value = value != null ? value : this._value(); |
|
// Always save the actual value, not the one passed as an argument |
this.term = this._value(); |
|
if ( value.length < this.options.minLength ) { |
return this.close( event ); |
} |
|
if ( this._trigger( "search", event ) === false ) { |
return; |
} |
|
return this._search( value ); |
}, |
|
_search: function( value ) { |
this.pending++; |
this._addClass( "ui-autocomplete-loading" ); |
this.cancelSearch = false; |
|
this.source( { term: value }, this._response() ); |
}, |
|
_response: function() { |
var index = ++this.requestIndex; |
|
return $.proxy( function( content ) { |
if ( index === this.requestIndex ) { |
this.__response( content ); |
} |
|
this.pending--; |
if ( !this.pending ) { |
this._removeClass( "ui-autocomplete-loading" ); |
} |
}, this ); |
}, |
|
__response: function( content ) { |
if ( content ) { |
content = this._normalize( content ); |
} |
this._trigger( "response", null, { content: content } ); |
if ( !this.options.disabled && content && content.length && !this.cancelSearch ) { |
this._suggest( content ); |
this._trigger( "open" ); |
} else { |
|
// use ._close() instead of .close() so we don't cancel future searches |
this._close(); |
} |
}, |
|
close: function( event ) { |
this.cancelSearch = true; |
this._close( event ); |
}, |
|
_close: function( event ) { |
|
// Remove the handler that closes the menu on outside clicks |
this._off( this.document, "mousedown" ); |
|
if ( this.menu.element.is( ":visible" ) ) { |
this.menu.element.hide(); |
this.menu.blur(); |
this.isNewMenu = true; |
this._trigger( "close", event ); |
} |
}, |
|
_change: function( event ) { |
if ( this.previous !== this._value() ) { |
this._trigger( "change", event, { item: this.selectedItem } ); |
} |
}, |
|
_normalize: function( items ) { |
|
// assume all items have the right format when the first item is complete |
if ( items.length && items[ 0 ].label && items[ 0 ].value ) { |
return items; |
} |
return $.map( items, function( item ) { |
if ( typeof item === "string" ) { |
return { |
label: item, |
value: item |
}; |
} |
return $.extend( {}, item, { |
label: item.label || item.value, |
value: item.value || item.label |
} ); |
} ); |
}, |
|
_suggest: function( items ) { |
var ul = this.menu.element.empty(); |
this._renderMenu( ul, items ); |
this.isNewMenu = true; |
this.menu.refresh(); |
|
// Size and position menu |
ul.show(); |
this._resizeMenu(); |
ul.position( $.extend( { |
of: this.element |
}, this.options.position ) ); |
|
if ( this.options.autoFocus ) { |
this.menu.next(); |
} |
|
// Listen for interactions outside of the widget (#6642) |
this._on( this.document, { |
mousedown: "_closeOnClickOutside" |
} ); |
}, |
|
_resizeMenu: function() { |
var ul = this.menu.element; |
ul.outerWidth( Math.max( |
|
// Firefox wraps long text (possibly a rounding bug) |
// so we add 1px to avoid the wrapping (#7513) |
ul.width( "" ).outerWidth() + 1, |
this.element.outerWidth() |
) ); |
}, |
|
_renderMenu: function( ul, items ) { |
var that = this; |
$.each( items, function( index, item ) { |
that._renderItemData( ul, item ); |
} ); |
}, |
|
_renderItemData: function( ul, item ) { |
return this._renderItem( ul, item ).data( "ui-autocomplete-item", item ); |
}, |
|
_renderItem: function( ul, item ) { |
return $( "<li>" ) |
.append( $( "<div>" ).text( item.label ) ) |
.appendTo( ul ); |
}, |
|
_move: function( direction, event ) { |
if ( !this.menu.element.is( ":visible" ) ) { |
this.search( null, event ); |
return; |
} |
if ( this.menu.isFirstItem() && /^previous/.test( direction ) || |
this.menu.isLastItem() && /^next/.test( direction ) ) { |
|
if ( !this.isMultiLine ) { |
this._value( this.term ); |
} |
|
this.menu.blur(); |
return; |
} |
this.menu[ direction ]( event ); |
}, |
|
widget: function() { |
return this.menu.element; |
}, |
|
_value: function() { |
return this.valueMethod.apply( this.element, arguments ); |
}, |
|
_keyEvent: function( keyEvent, event ) { |
if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) { |
this._move( keyEvent, event ); |
|
// Prevents moving cursor to beginning/end of the text field in some browsers |
event.preventDefault(); |
} |
}, |
|
// Support: Chrome <=50 |
// We should be able to just use this.element.prop( "isContentEditable" ) |
// but hidden elements always report false in Chrome. |
// https://code.google.com/p/chromium/issues/detail?id=313082 |
_isContentEditable: function( element ) { |
if ( !element.length ) { |
return false; |
} |
|
var editable = element.prop( "contentEditable" ); |
|
if ( editable === "inherit" ) { |
return this._isContentEditable( element.parent() ); |
} |
|
return editable === "true"; |
} |
} ); |
|
$.extend( $.ui.autocomplete, { |
escapeRegex: function( value ) { |
return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" ); |
}, |
filter: function( array, term ) { |
var matcher = new RegExp( $.ui.autocomplete.escapeRegex( term ), "i" ); |
return $.grep( array, function( value ) { |
return matcher.test( value.label || value.value || value ); |
} ); |
} |
} ); |
|
// Live region extension, adding a `messages` option |
// NOTE: This is an experimental API. We are still investigating |
// a full solution for string manipulation and internationalization. |
$.widget( "ui.autocomplete", $.ui.autocomplete, { |
options: { |
messages: { |
noResults: "No search results.", |
results: function( amount ) { |
return amount + ( amount > 1 ? " results are" : " result is" ) + |
" available, use up and down arrow keys to navigate."; |
} |
} |
}, |
|
__response: function( content ) { |
var message; |
this._superApply( arguments ); |
if ( this.options.disabled || this.cancelSearch ) { |
return; |
} |
if ( content && content.length ) { |
message = this.options.messages.results( content.length ); |
} else { |
message = this.options.messages.noResults; |
} |
this.liveRegion.children().hide(); |
$( "<div>" ).text( message ).appendTo( this.liveRegion ); |
} |
} ); |
|
return $.ui.autocomplete; |
|
} ) ); |