/instantMessage/bower_components/jquery-ui/ui/widgets/menu.js |
@@ -0,0 +1,673 @@ |
/*! |
* jQuery UI Menu 1.12.1 |
* http://jqueryui.com |
* |
* Copyright jQuery Foundation and other contributors |
* Released under the MIT license. |
* http://jquery.org/license |
*/ |
|
//>>label: Menu |
//>>group: Widgets |
//>>description: Creates nestable menus. |
//>>docs: http://api.jqueryui.com/menu/ |
//>>demos: http://jqueryui.com/menu/ |
//>>css.structure: ../../themes/base/core.css |
//>>css.structure: ../../themes/base/menu.css |
//>>css.theme: ../../themes/base/theme.css |
|
( function( factory ) { |
if ( typeof define === "function" && define.amd ) { |
|
// AMD. Register as an anonymous module. |
define( [ |
"jquery", |
"../keycode", |
"../position", |
"../safe-active-element", |
"../unique-id", |
"../version", |
"../widget" |
], factory ); |
} else { |
|
// Browser globals |
factory( jQuery ); |
} |
}( function( $ ) { |
|
return $.widget( "ui.menu", { |
version: "1.12.1", |
defaultElement: "<ul>", |
delay: 300, |
options: { |
icons: { |
submenu: "ui-icon-caret-1-e" |
}, |
items: "> *", |
menus: "ul", |
position: { |
my: "left top", |
at: "right top" |
}, |
role: "menu", |
|
// Callbacks |
blur: null, |
focus: null, |
select: null |
}, |
|
_create: function() { |
this.activeMenu = this.element; |
|
// Flag used to prevent firing of the click handler |
// as the event bubbles up through nested menus |
this.mouseHandled = false; |
this.element |
.uniqueId() |
.attr( { |
role: this.options.role, |
tabIndex: 0 |
} ); |
|
this._addClass( "ui-menu", "ui-widget ui-widget-content" ); |
this._on( { |
|
// Prevent focus from sticking to links inside menu after clicking |
// them (focus should always stay on UL during navigation). |
"mousedown .ui-menu-item": function( event ) { |
event.preventDefault(); |
}, |
"click .ui-menu-item": function( event ) { |
var target = $( event.target ); |
var active = $( $.ui.safeActiveElement( this.document[ 0 ] ) ); |
if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) { |
this.select( event ); |
|
// Only set the mouseHandled flag if the event will bubble, see #9469. |
if ( !event.isPropagationStopped() ) { |
this.mouseHandled = true; |
} |
|
// Open submenu on click |
if ( target.has( ".ui-menu" ).length ) { |
this.expand( event ); |
} else if ( !this.element.is( ":focus" ) && |
active.closest( ".ui-menu" ).length ) { |
|
// Redirect focus to the menu |
this.element.trigger( "focus", [ true ] ); |
|
// If the active item is on the top level, let it stay active. |
// Otherwise, blur the active item since it is no longer visible. |
if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) { |
clearTimeout( this.timer ); |
} |
} |
} |
}, |
"mouseenter .ui-menu-item": function( event ) { |
|
// Ignore mouse events while typeahead is active, see #10458. |
// Prevents focusing the wrong item when typeahead causes a scroll while the mouse |
// is over an item in the menu |
if ( this.previousFilter ) { |
return; |
} |
|
var actualTarget = $( event.target ).closest( ".ui-menu-item" ), |
target = $( event.currentTarget ); |
|
// Ignore bubbled events on parent items, see #11641 |
if ( actualTarget[ 0 ] !== target[ 0 ] ) { |
return; |
} |
|
// Remove ui-state-active class from siblings of the newly focused menu item |
// to avoid a jump caused by adjacent elements both having a class with a border |
this._removeClass( target.siblings().children( ".ui-state-active" ), |
null, "ui-state-active" ); |
this.focus( event, target ); |
}, |
mouseleave: "collapseAll", |
"mouseleave .ui-menu": "collapseAll", |
focus: function( event, keepActiveItem ) { |
|
// If there's already an active item, keep it active |
// If not, activate the first item |
var item = this.active || this.element.find( this.options.items ).eq( 0 ); |
|
if ( !keepActiveItem ) { |
this.focus( event, item ); |
} |
}, |
blur: function( event ) { |
this._delay( function() { |
var notContained = !$.contains( |
this.element[ 0 ], |
$.ui.safeActiveElement( this.document[ 0 ] ) |
); |
if ( notContained ) { |
this.collapseAll( event ); |
} |
} ); |
}, |
keydown: "_keydown" |
} ); |
|
this.refresh(); |
|
// Clicks outside of a menu collapse any open menus |
this._on( this.document, { |
click: function( event ) { |
if ( this._closeOnDocumentClick( event ) ) { |
this.collapseAll( event ); |
} |
|
// Reset the mouseHandled flag |
this.mouseHandled = false; |
} |
} ); |
}, |
|
_destroy: function() { |
var items = this.element.find( ".ui-menu-item" ) |
.removeAttr( "role aria-disabled" ), |
submenus = items.children( ".ui-menu-item-wrapper" ) |
.removeUniqueId() |
.removeAttr( "tabIndex role aria-haspopup" ); |
|
// Destroy (sub)menus |
this.element |
.removeAttr( "aria-activedescendant" ) |
.find( ".ui-menu" ).addBack() |
.removeAttr( "role aria-labelledby aria-expanded aria-hidden aria-disabled " + |
"tabIndex" ) |
.removeUniqueId() |
.show(); |
|
submenus.children().each( function() { |
var elem = $( this ); |
if ( elem.data( "ui-menu-submenu-caret" ) ) { |
elem.remove(); |
} |
} ); |
}, |
|
_keydown: function( event ) { |
var match, prev, character, skip, |
preventDefault = true; |
|
switch ( event.keyCode ) { |
case $.ui.keyCode.PAGE_UP: |
this.previousPage( event ); |
break; |
case $.ui.keyCode.PAGE_DOWN: |
this.nextPage( event ); |
break; |
case $.ui.keyCode.HOME: |
this._move( "first", "first", event ); |
break; |
case $.ui.keyCode.END: |
this._move( "last", "last", event ); |
break; |
case $.ui.keyCode.UP: |
this.previous( event ); |
break; |
case $.ui.keyCode.DOWN: |
this.next( event ); |
break; |
case $.ui.keyCode.LEFT: |
this.collapse( event ); |
break; |
case $.ui.keyCode.RIGHT: |
if ( this.active && !this.active.is( ".ui-state-disabled" ) ) { |
this.expand( event ); |
} |
break; |
case $.ui.keyCode.ENTER: |
case $.ui.keyCode.SPACE: |
this._activate( event ); |
break; |
case $.ui.keyCode.ESCAPE: |
this.collapse( event ); |
break; |
default: |
preventDefault = false; |
prev = this.previousFilter || ""; |
skip = false; |
|
// Support number pad values |
character = event.keyCode >= 96 && event.keyCode <= 105 ? |
( event.keyCode - 96 ).toString() : String.fromCharCode( event.keyCode ); |
|
clearTimeout( this.filterTimer ); |
|
if ( character === prev ) { |
skip = true; |
} else { |
character = prev + character; |
} |
|
match = this._filterMenuItems( character ); |
match = skip && match.index( this.active.next() ) !== -1 ? |
this.active.nextAll( ".ui-menu-item" ) : |
match; |
|
// If no matches on the current filter, reset to the last character pressed |
// to move down the menu to the first item that starts with that character |
if ( !match.length ) { |
character = String.fromCharCode( event.keyCode ); |
match = this._filterMenuItems( character ); |
} |
|
if ( match.length ) { |
this.focus( event, match ); |
this.previousFilter = character; |
this.filterTimer = this._delay( function() { |
delete this.previousFilter; |
}, 1000 ); |
} else { |
delete this.previousFilter; |
} |
} |
|
if ( preventDefault ) { |
event.preventDefault(); |
} |
}, |
|
_activate: function( event ) { |
if ( this.active && !this.active.is( ".ui-state-disabled" ) ) { |
if ( this.active.children( "[aria-haspopup='true']" ).length ) { |
this.expand( event ); |
} else { |
this.select( event ); |
} |
} |
}, |
|
refresh: function() { |
var menus, items, newSubmenus, newItems, newWrappers, |
that = this, |
icon = this.options.icons.submenu, |
submenus = this.element.find( this.options.menus ); |
|
this._toggleClass( "ui-menu-icons", null, !!this.element.find( ".ui-icon" ).length ); |
|
// Initialize nested menus |
newSubmenus = submenus.filter( ":not(.ui-menu)" ) |
.hide() |
.attr( { |
role: this.options.role, |
"aria-hidden": "true", |
"aria-expanded": "false" |
} ) |
.each( function() { |
var menu = $( this ), |
item = menu.prev(), |
submenuCaret = $( "<span>" ).data( "ui-menu-submenu-caret", true ); |
|
that._addClass( submenuCaret, "ui-menu-icon", "ui-icon " + icon ); |
item |
.attr( "aria-haspopup", "true" ) |
.prepend( submenuCaret ); |
menu.attr( "aria-labelledby", item.attr( "id" ) ); |
} ); |
|
this._addClass( newSubmenus, "ui-menu", "ui-widget ui-widget-content ui-front" ); |
|
menus = submenus.add( this.element ); |
items = menus.find( this.options.items ); |
|
// Initialize menu-items containing spaces and/or dashes only as dividers |
items.not( ".ui-menu-item" ).each( function() { |
var item = $( this ); |
if ( that._isDivider( item ) ) { |
that._addClass( item, "ui-menu-divider", "ui-widget-content" ); |
} |
} ); |
|
// Don't refresh list items that are already adapted |
newItems = items.not( ".ui-menu-item, .ui-menu-divider" ); |
newWrappers = newItems.children() |
.not( ".ui-menu" ) |
.uniqueId() |
.attr( { |
tabIndex: -1, |
role: this._itemRole() |
} ); |
this._addClass( newItems, "ui-menu-item" ) |
._addClass( newWrappers, "ui-menu-item-wrapper" ); |
|
// Add aria-disabled attribute to any disabled menu item |
items.filter( ".ui-state-disabled" ).attr( "aria-disabled", "true" ); |
|
// If the active item has been removed, blur the menu |
if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) { |
this.blur(); |
} |
}, |
|
_itemRole: function() { |
return { |
menu: "menuitem", |
listbox: "option" |
}[ this.options.role ]; |
}, |
|
_setOption: function( key, value ) { |
if ( key === "icons" ) { |
var icons = this.element.find( ".ui-menu-icon" ); |
this._removeClass( icons, null, this.options.icons.submenu ) |
._addClass( icons, null, value.submenu ); |
} |
this._super( key, value ); |
}, |
|
_setOptionDisabled: function( value ) { |
this._super( value ); |
|
this.element.attr( "aria-disabled", String( value ) ); |
this._toggleClass( null, "ui-state-disabled", !!value ); |
}, |
|
focus: function( event, item ) { |
var nested, focused, activeParent; |
this.blur( event, event && event.type === "focus" ); |
|
this._scrollIntoView( item ); |
|
this.active = item.first(); |
|
focused = this.active.children( ".ui-menu-item-wrapper" ); |
this._addClass( focused, null, "ui-state-active" ); |
|
// Only update aria-activedescendant if there's a role |
// otherwise we assume focus is managed elsewhere |
if ( this.options.role ) { |
this.element.attr( "aria-activedescendant", focused.attr( "id" ) ); |
} |
|
// Highlight active parent menu item, if any |
activeParent = this.active |
.parent() |
.closest( ".ui-menu-item" ) |
.children( ".ui-menu-item-wrapper" ); |
this._addClass( activeParent, null, "ui-state-active" ); |
|
if ( event && event.type === "keydown" ) { |
this._close(); |
} else { |
this.timer = this._delay( function() { |
this._close(); |
}, this.delay ); |
} |
|
nested = item.children( ".ui-menu" ); |
if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) { |
this._startOpening( nested ); |
} |
this.activeMenu = item.parent(); |
|
this._trigger( "focus", event, { item: item } ); |
}, |
|
_scrollIntoView: function( item ) { |
var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight; |
if ( this._hasScroll() ) { |
borderTop = parseFloat( $.css( this.activeMenu[ 0 ], "borderTopWidth" ) ) || 0; |
paddingTop = parseFloat( $.css( this.activeMenu[ 0 ], "paddingTop" ) ) || 0; |
offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop; |
scroll = this.activeMenu.scrollTop(); |
elementHeight = this.activeMenu.height(); |
itemHeight = item.outerHeight(); |
|
if ( offset < 0 ) { |
this.activeMenu.scrollTop( scroll + offset ); |
} else if ( offset + itemHeight > elementHeight ) { |
this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight ); |
} |
} |
}, |
|
blur: function( event, fromFocus ) { |
if ( !fromFocus ) { |
clearTimeout( this.timer ); |
} |
|
if ( !this.active ) { |
return; |
} |
|
this._removeClass( this.active.children( ".ui-menu-item-wrapper" ), |
null, "ui-state-active" ); |
|
this._trigger( "blur", event, { item: this.active } ); |
this.active = null; |
}, |
|
_startOpening: function( submenu ) { |
clearTimeout( this.timer ); |
|
// Don't open if already open fixes a Firefox bug that caused a .5 pixel |
// shift in the submenu position when mousing over the caret icon |
if ( submenu.attr( "aria-hidden" ) !== "true" ) { |
return; |
} |
|
this.timer = this._delay( function() { |
this._close(); |
this._open( submenu ); |
}, this.delay ); |
}, |
|
_open: function( submenu ) { |
var position = $.extend( { |
of: this.active |
}, this.options.position ); |
|
clearTimeout( this.timer ); |
this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) ) |
.hide() |
.attr( "aria-hidden", "true" ); |
|
submenu |
.show() |
.removeAttr( "aria-hidden" ) |
.attr( "aria-expanded", "true" ) |
.position( position ); |
}, |
|
collapseAll: function( event, all ) { |
clearTimeout( this.timer ); |
this.timer = this._delay( function() { |
|
// If we were passed an event, look for the submenu that contains the event |
var currentMenu = all ? this.element : |
$( event && event.target ).closest( this.element.find( ".ui-menu" ) ); |
|
// If we found no valid submenu ancestor, use the main menu to close all |
// sub menus anyway |
if ( !currentMenu.length ) { |
currentMenu = this.element; |
} |
|
this._close( currentMenu ); |
|
this.blur( event ); |
|
// Work around active item staying active after menu is blurred |
this._removeClass( currentMenu.find( ".ui-state-active" ), null, "ui-state-active" ); |
|
this.activeMenu = currentMenu; |
}, this.delay ); |
}, |
|
// With no arguments, closes the currently active menu - if nothing is active |
// it closes all menus. If passed an argument, it will search for menus BELOW |
_close: function( startMenu ) { |
if ( !startMenu ) { |
startMenu = this.active ? this.active.parent() : this.element; |
} |
|
startMenu.find( ".ui-menu" ) |
.hide() |
.attr( "aria-hidden", "true" ) |
.attr( "aria-expanded", "false" ); |
}, |
|
_closeOnDocumentClick: function( event ) { |
return !$( event.target ).closest( ".ui-menu" ).length; |
}, |
|
_isDivider: function( item ) { |
|
// Match hyphen, em dash, en dash |
return !/[^\-\u2014\u2013\s]/.test( item.text() ); |
}, |
|
collapse: function( event ) { |
var newItem = this.active && |
this.active.parent().closest( ".ui-menu-item", this.element ); |
if ( newItem && newItem.length ) { |
this._close(); |
this.focus( event, newItem ); |
} |
}, |
|
expand: function( event ) { |
var newItem = this.active && |
this.active |
.children( ".ui-menu " ) |
.find( this.options.items ) |
.first(); |
|
if ( newItem && newItem.length ) { |
this._open( newItem.parent() ); |
|
// Delay so Firefox will not hide activedescendant change in expanding submenu from AT |
this._delay( function() { |
this.focus( event, newItem ); |
} ); |
} |
}, |
|
next: function( event ) { |
this._move( "next", "first", event ); |
}, |
|
previous: function( event ) { |
this._move( "prev", "last", event ); |
}, |
|
isFirstItem: function() { |
return this.active && !this.active.prevAll( ".ui-menu-item" ).length; |
}, |
|
isLastItem: function() { |
return this.active && !this.active.nextAll( ".ui-menu-item" ).length; |
}, |
|
_move: function( direction, filter, event ) { |
var next; |
if ( this.active ) { |
if ( direction === "first" || direction === "last" ) { |
next = this.active |
[ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" ) |
.eq( -1 ); |
} else { |
next = this.active |
[ direction + "All" ]( ".ui-menu-item" ) |
.eq( 0 ); |
} |
} |
if ( !next || !next.length || !this.active ) { |
next = this.activeMenu.find( this.options.items )[ filter ](); |
} |
|
this.focus( event, next ); |
}, |
|
nextPage: function( event ) { |
var item, base, height; |
|
if ( !this.active ) { |
this.next( event ); |
return; |
} |
if ( this.isLastItem() ) { |
return; |
} |
if ( this._hasScroll() ) { |
base = this.active.offset().top; |
height = this.element.height(); |
this.active.nextAll( ".ui-menu-item" ).each( function() { |
item = $( this ); |
return item.offset().top - base - height < 0; |
} ); |
|
this.focus( event, item ); |
} else { |
this.focus( event, this.activeMenu.find( this.options.items ) |
[ !this.active ? "first" : "last" ]() ); |
} |
}, |
|
previousPage: function( event ) { |
var item, base, height; |
if ( !this.active ) { |
this.next( event ); |
return; |
} |
if ( this.isFirstItem() ) { |
return; |
} |
if ( this._hasScroll() ) { |
base = this.active.offset().top; |
height = this.element.height(); |
this.active.prevAll( ".ui-menu-item" ).each( function() { |
item = $( this ); |
return item.offset().top - base + height > 0; |
} ); |
|
this.focus( event, item ); |
} else { |
this.focus( event, this.activeMenu.find( this.options.items ).first() ); |
} |
}, |
|
_hasScroll: function() { |
return this.element.outerHeight() < this.element.prop( "scrollHeight" ); |
}, |
|
select: function( event ) { |
|
// TODO: It should never be possible to not have an active item at this |
// point, but the tests don't trigger mouseenter before click. |
this.active = this.active || $( event.target ).closest( ".ui-menu-item" ); |
var ui = { item: this.active }; |
if ( !this.active.has( ".ui-menu" ).length ) { |
this.collapseAll( event, true ); |
} |
this._trigger( "select", event, ui ); |
}, |
|
_filterMenuItems: function( character ) { |
var escapedCharacter = character.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" ), |
regex = new RegExp( "^" + escapedCharacter, "i" ); |
|
return this.activeMenu |
.find( this.options.items ) |
|
// Only match on items, not dividers or other content (#10571) |
.filter( ".ui-menu-item" ) |
.filter( function() { |
return regex.test( |
$.trim( $( this ).children( ".ui-menu-item-wrapper" ).text() ) ); |
} ); |
} |
} ); |
|
} ) ); |