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Menu: Extracted menu code from autocomplete, updated all dependencies
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,177 @@ | ||
| /* | ||
| * jQuery UI Menu @VERSION | ||
| * | ||
| * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about) | ||
| * Dual licensed under the MIT (MIT-LICENSE.txt) | ||
| * and GPL (GPL-LICENSE.txt) licenses. | ||
| * | ||
| * http://docs.jquery.com/UI/Menu | ||
| * | ||
| * Depends: | ||
| * jquery.ui.core.js | ||
| * jquery.ui.widget.js | ||
| */ | ||
| (function($) { | ||
|
|
||
| $.widget("ui.menu", { | ||
| _create: function() { | ||
| var self = this; | ||
| this.element | ||
| .addClass("ui-menu ui-widget ui-widget-content ui-corner-all") | ||
| .attr({ | ||
| role: "listbox", | ||
| "aria-activedescendant": "ui-active-menuitem" | ||
| }) | ||
| .click(function( event ) { | ||
| if ( !$( event.target ).closest( ".ui-menu-item a" ).length ) { | ||
| return; | ||
| } | ||
| // temporary | ||
| event.preventDefault(); | ||
| self.select( event ); | ||
| }); | ||
| this.refresh(); | ||
| }, | ||
|
|
||
| refresh: function() { | ||
| var self = this; | ||
|
|
||
| // don't refresh list items that are already adapted | ||
| var items = this.element.children("li:not(.ui-menu-item):has(a)") | ||
| .addClass("ui-menu-item") | ||
| .attr("role", "menuitem"); | ||
|
|
||
| items.children("a") | ||
| .addClass("ui-corner-all") | ||
| .attr("tabindex", -1) | ||
| // mouseenter doesn't work with event delegation | ||
| .mouseenter(function( event ) { | ||
| self.activate( event, $(this).parent() ); | ||
| }) | ||
| .mouseleave(function() { | ||
| self.deactivate(); | ||
| }); | ||
| }, | ||
|
|
||
| activate: function( event, item ) { | ||
| this.deactivate(); | ||
| if (this.hasScroll()) { | ||
| var offset = item.offset().top - this.element.offset().top, | ||
| scroll = this.element.attr("scrollTop"), | ||
| elementHeight = this.element.height(); | ||
| if (offset < 0) { | ||
| this.element.attr("scrollTop", scroll + offset); | ||
| } else if (offset > elementHeight) { | ||
| this.element.attr("scrollTop", scroll + offset - elementHeight + item.height()); | ||
| } | ||
| } | ||
| this.active = item.eq(0) | ||
| .children("a") | ||
| .addClass("ui-state-hover") | ||
| .attr("id", "ui-active-menuitem") | ||
| .end(); | ||
| this._trigger("focus", event, { item: item }); | ||
| }, | ||
|
|
||
| deactivate: function() { | ||
| if (!this.active) { return; } | ||
|
|
||
| this.active.children("a") | ||
| .removeClass("ui-state-hover") | ||
| .removeAttr("id"); | ||
| this._trigger("blur"); | ||
| this.active = null; | ||
| }, | ||
|
|
||
| next: function(event) { | ||
| this.move("next", ".ui-menu-item:first", event); | ||
| }, | ||
|
|
||
| previous: function(event) { | ||
| this.move("prev", ".ui-menu-item:last", event); | ||
| }, | ||
|
|
||
| first: function() { | ||
| return this.active && !this.active.prev().length; | ||
| }, | ||
|
|
||
| last: function() { | ||
| return this.active && !this.active.next().length; | ||
| }, | ||
|
|
||
| move: function(direction, edge, event) { | ||
| if (!this.active) { | ||
| this.activate(event, this.element.children(edge)); | ||
| return; | ||
| } | ||
| var next = this.active[direction + "All"](".ui-menu-item").eq(0); | ||
| if (next.length) { | ||
| this.activate(event, next); | ||
| } else { | ||
| this.activate(event, this.element.children(edge)); | ||
| } | ||
| }, | ||
|
|
||
| // TODO merge with previousPage | ||
| nextPage: function(event) { | ||
| if (this.hasScroll()) { | ||
| // TODO merge with no-scroll-else | ||
| if (!this.active || this.last()) { | ||
| this.activate(event, this.element.children(":first")); | ||
| return; | ||
| } | ||
| var base = this.active.offset().top, | ||
| height = this.element.height(), | ||
| result = this.element.children("li").filter(function() { | ||
| var close = $(this).offset().top - base - height + $(this).height(); | ||
| // TODO improve approximation | ||
| return close < 10 && close > -10; | ||
| }); | ||
|
|
||
| // TODO try to catch this earlier when scrollTop indicates the last page anyway | ||
| if (!result.length) { | ||
| result = this.element.children(":last"); | ||
| } | ||
| this.activate(event, result); | ||
| } else { | ||
| this.activate(event, this.element.children(!this.active || this.last() ? ":first" : ":last")); | ||
| } | ||
| }, | ||
|
|
||
| // TODO merge with nextPage | ||
| previousPage: function(event) { | ||
| if (this.hasScroll()) { | ||
| // TODO merge with no-scroll-else | ||
| if (!this.active || this.first()) { | ||
| this.activate(event, this.element.children(":last")); | ||
| return; | ||
| } | ||
|
|
||
| var base = this.active.offset().top, | ||
| height = this.element.height(); | ||
| result = this.element.children("li").filter(function() { | ||
| var close = $(this).offset().top - base + height - $(this).height(); | ||
| // TODO improve approximation | ||
| return close < 10 && close > -10; | ||
| }); | ||
|
|
||
| // TODO try to catch this earlier when scrollTop indicates the last page anyway | ||
| if (!result.length) { | ||
| result = this.element.children(":first"); | ||
| } | ||
| this.activate(event, result); | ||
| } else { | ||
| this.activate(event, this.element.children(!this.active || this.first() ? ":last" : ":first")); | ||
| } | ||
| }, | ||
|
|
||
| hasScroll: function() { | ||
| return this.element.height() < this.element.attr("scrollHeight"); | ||
| }, | ||
|
|
||
| select: function( event ) { | ||
| this._trigger("selected", event, { item: this.active }); | ||
| } | ||
| }); | ||
|
|
||
| }(jQuery)); |