source: Dev/trunk/src/client/dijit/form/CheckBox.js @ 529

define([
        "require",
        "dojo/_base/declare", // declare
        "dojo/dom-attr", // domAttr.set
        "dojo/has",             // has("dijit-legacy-requires")
        "dojo/query", // query
        "dojo/ready",
        "./ToggleButton",
        "./_CheckBoxMixin",
        "dojo/text!./templates/CheckBox.html",
        "dojo/NodeList-dom", // NodeList.addClass/removeClass
        "../a11yclick"  // template uses ondijitclick
], function(require, declare, domAttr, has, query, ready, ToggleButton, _CheckBoxMixin, template){

        // module:
        //              dijit/form/CheckBox

        // Back compat w/1.6, remove for 2.0
        if(has("dijit-legacy-requires")){
                ready(0, function(){
                        var requires = ["dijit/form/RadioButton"];
                        require(requires);      // use indirection so modules not rolled into a build
                });
        }

        return declare("dijit.form.CheckBox", [ToggleButton, _CheckBoxMixin], {
                // summary:
                //              Same as an HTML checkbox, but with fancy styling.
                //
                // description:
                //              User interacts with real html inputs.
                //              On onclick (which occurs by mouse click, space-bar, or
                //              using the arrow keys to switch the selected radio button),
                //              we update the state of the checkbox/radio.
                //
                //              There are two modes:
                //
                //              1. High contrast mode
                //              2. Normal mode
                //
                //              In case 1, the regular html inputs are shown and used by the user.
                //              In case 2, the regular html inputs are invisible but still used by
                //              the user. They are turned quasi-invisible and overlay the background-image.

                templateString: template,

                baseClass: "dijitCheckBox",

                _setValueAttr: function(/*String|Boolean*/ newValue, /*Boolean*/ priorityChange){
                        // summary:
                        //              Handler for value= attribute to constructor, and also calls to
                        //              set('value', val).
                        // description:
                        //              During initialization, just saves as attribute to the `<input type=checkbox>`.
                        //
                        //              After initialization,
                        //              when passed a boolean, controls whether or not the CheckBox is checked.
                        //              If passed a string, changes the value attribute of the CheckBox (the one
                        //              specified as "value" when the CheckBox was constructed
                        //              (ex: `<input data-dojo-type="dijit/CheckBox" value="chicken">`).
                        //
                        //              `widget.set('value', string)` will check the checkbox and change the value to the
                        //              specified string.
                        //
                        //              `widget.set('value', boolean)` will change the checked state.

                        if(typeof newValue == "string"){
                                this.inherited(arguments);
                                newValue = true;
                        }
                        if(this._created){
                                this.set('checked', newValue, priorityChange);
                        }
                },
                _getValueAttr: function(){
                        // summary:
                        //              Hook so get('value') works.
                        // description:
                        //              If the CheckBox is checked, returns the value attribute.
                        //              Otherwise returns false.
                        return this.checked && this._get("value");
                },

                // Override behavior from Button, since we don't have an iconNode or valueNode
                _setIconClassAttr: null,
                _setNameAttr: "focusNode",

                postMixInProperties: function(){
                        this.inherited(arguments);

                        // Need to set initial checked state via node.setAttribute so that form submit works
                        // and IE8 radio button tab order is preserved.
                        // domAttr.set(node, "checked", bool) doesn't work on IE until node has been attached
                        // to <body>, see #8666
                        this.checkedAttrSetting = "";
                },

                 _fillContent: function(){
                        // Override Button::_fillContent() since it doesn't make sense for CheckBox,
                        // since CheckBox doesn't even have a container
                },

                _onFocus: function(){
                        if(this.id){
                                query("label[for='"+this.id+"']").addClass("dijitFocusedLabel");
                        }
                        this.inherited(arguments);
                },

                _onBlur: function(){
                        if(this.id){
                                query("label[for='"+this.id+"']").removeClass("dijitFocusedLabel");
                        }
                        this.inherited(arguments);
                }
        });
});