source: Dev/trunk/src/client/dijit/MenuItem.js @ 536

define([
        "dojo/_base/declare", // declare
        "dojo/dom", // dom.setSelectable
        "dojo/dom-attr", // domAttr.set
        "dojo/dom-class", // domClass.toggle
        "dojo/_base/kernel", // kernel.deprecated
        "dojo/sniff", // has("ie")
        "dojo/_base/lang", // lang.hitch
        "./_Widget",
        "./_TemplatedMixin",
        "./_Contained",
        "./_CssStateMixin",
        "dojo/text!./templates/MenuItem.html"
], function(declare, dom, domAttr, domClass, kernel, has, lang,
                        _Widget, _TemplatedMixin, _Contained, _CssStateMixin, template){

        // module:
        //              dijit/MenuItem

        var MenuItem = declare("dijit.MenuItem" + (has("dojo-bidi") ? "_NoBidi" : ""),
                [_Widget, _TemplatedMixin, _Contained, _CssStateMixin], {
                // summary:
                //              A line item in a Menu Widget

                // Make 3 columns
                // icon, label, and expand arrow (BiDi-dependent) indicating sub-menu
                templateString: template,

                baseClass: "dijitMenuItem",

                // label: String
                //              Menu text as HTML
                label: "",
                _setLabelAttr: function(val){
                        this._set("label", val);
                        var shortcutKey = "";
                        var text;
                        var ndx = val.search(/{\S}/);
                        if(ndx >= 0){
                                shortcutKey = val.charAt(ndx + 1);
                                var prefix = val.substr(0, ndx);
                                var suffix = val.substr(ndx + 3);
                                text = prefix + shortcutKey + suffix;
                                val = prefix + '<span class="dijitMenuItemShortcutKey">' + shortcutKey + '</span>' + suffix;
                        }else{
                                text = val;
                        }
                        this.domNode.setAttribute("aria-label", text + " " + this.accelKey);
                        this.containerNode.innerHTML = val;
                        this._set('shortcutKey', shortcutKey);
                },

                /*=====
                // shortcutKey: [readonly] String
                //              Single character (underlined when the parent Menu is focused) used to navigate directly to this widget,
                //              also known as [a mnemonic](http://en.wikipedia.org/wiki/Mnemonics_(keyboard%29).
                //              This is denoted in the label by surrounding the single character with {}.
                //              For example, if label="{F}ile", then shortcutKey="F".
                shortcutKey: "",
                =====*/

                // iconClass: String
                //              Class to apply to DOMNode to make it display an icon.
                iconClass: "dijitNoIcon",
                _setIconClassAttr: { node: "iconNode", type: "class" },

                // accelKey: String
                //              Text for the accelerator (shortcut) key combination, a control, alt, etc. modified keystroke meant to
                //              execute the menu item regardless of where the focus is on the page.
                //
                //              Note that although Menu can display accelerator keys, there is no infrastructure to actually catch and
                //              execute those accelerators.
                accelKey: "",

                // disabled: Boolean
                //              If true, the menu item is disabled.
                //              If false, the menu item is enabled.
                disabled: false,

                _fillContent: function(/*DomNode*/ source){
                        // If button label is specified as srcNodeRef.innerHTML rather than
                        // this.params.label, handle it here.
                        if(source && !("label" in this.params)){
                                this._set('label', source.innerHTML);
                        }
                },

                buildRendering: function(){
                        this.inherited(arguments);
                        var label = this.id + "_text";
                        domAttr.set(this.containerNode, "id", label); // only needed for backward compat
                        if(this.accelKeyNode){
                                domAttr.set(this.accelKeyNode, "id", this.id + "_accel"); // only needed for backward compat
                        }
                        dom.setSelectable(this.domNode, false);
                },

                onClick: function(/*Event*/){
                        // summary:
                        //              User defined function to handle clicks
                        // tags:
                        //              callback
                },

                focus: function(){
                        // summary:
                        //              Focus on this MenuItem
                        try{
                                if(has("ie") == 8){
                                        // needed for IE8 which won't scroll TR tags into view on focus yet calling scrollIntoView creates flicker (#10275)
                                        this.containerNode.focus();
                                }
                                this.focusNode.focus();
                        }catch(e){
                                // this throws on IE (at least) in some scenarios
                        }
                },

                _onFocus: function(){
                        // summary:
                        //              This is called by the focus manager when focus
                        //              goes to this MenuItem or a child menu.
                        // tags:
                        //              protected

                        this.getParent()._onItemFocus(this);

                        this.inherited(arguments);
                },

                _setSelected: function(selected){
                        // summary:
                        //              Indicate that this node is the currently selected one
                        // tags:
                        //              private

                        domClass.toggle(this.domNode, "dijitMenuItemSelected", selected);
                },

                setLabel: function(/*String*/ content){
                        // summary:
                        //              Deprecated.   Use set('label', ...) instead.
                        // tags:
                        //              deprecated
                        kernel.deprecated("dijit.MenuItem.setLabel() is deprecated.  Use set('label', ...) instead.", "", "2.0");
                        this.set("label", content);
                },

                setDisabled: function(/*Boolean*/ disabled){
                        // summary:
                        //              Deprecated.   Use set('disabled', bool) instead.
                        // tags:
                        //              deprecated
                        kernel.deprecated("dijit.Menu.setDisabled() is deprecated.  Use set('disabled', bool) instead.", "", "2.0");
                        this.set('disabled', disabled);
                },

                _setDisabledAttr: function(/*Boolean*/ value){
                        // summary:
                        //              Hook for attr('disabled', ...) to work.
                        //              Enable or disable this menu item.

                        this.focusNode.setAttribute('aria-disabled', value ? 'true' : 'false');
                        this._set("disabled", value);
                },

                _setAccelKeyAttr: function(/*String*/ value){
                        // summary:
                        //              Hook for attr('accelKey', ...) to work.
                        //              Set accelKey on this menu item.

                        if(this.accelKeyNode){
                                this.accelKeyNode.style.display = value ? "" : "none";
                                this.accelKeyNode.innerHTML = value;
                                //have to use colSpan to make it work in IE
                                domAttr.set(this.containerNode, 'colSpan', value ? "1" : "2");
                        }
                        this._set("accelKey", value);
                }
        });

        if(has("dojo-bidi")){
                MenuItem = declare("dijit.MenuItem", MenuItem, {
                        _setLabelAttr: function(val){
                                this.inherited(arguments);
                                if(this.textDir === "auto"){
                                        this.applyTextDir(this.textDirNode);
                                }
                        }
                });
        }

        return MenuItem;
});