lib/dijit/form/_ButtonMixin.js.uncompressed.js

   1 define("dijit/form/_ButtonMixin", [
   2         "dojo/_base/declare", // declare
   3         "dojo/dom", // dom.setSelectable
   4         "dojo/_base/event", // event.stop
   5         "../registry"           // registry.byNode
   6 ], function(declare, dom, event, registry){
   7
   8 // module:
   9 //              dijit/form/_ButtonMixin
  10
  11 return declare("dijit.form._ButtonMixin", null, {
  12         // summary:
  13         //              A mixin to add a thin standard API wrapper to a normal HTML button
  14         // description:
  15         //              A label should always be specified (through innerHTML) or the label attribute.
  16         //
  17         //              Attach points:
  18         //
  19         //              - focusNode (required): this node receives focus
  20         //              - valueNode (optional): this node's value gets submitted with FORM elements
  21         //              - containerNode (optional): this node gets the innerHTML assignment for label
  22         // example:
  23         // |    <button data-dojo-type="dijit/form/Button" onClick="...">Hello world</button>
  24         // example:
  25         // |    var button1 = new Button({label: "hello world", onClick: foo});
  26         // |    dojo.body().appendChild(button1.domNode);
  27
  28         // label: HTML String
  29         //              Content to display in button.
  30         label: "",
  31
  32         // type: [const] String
  33         //              Type of button (submit, reset, button, checkbox, radio)
  34         type: "button",
  35
  36         _onClick: function(/*Event*/ e){
  37                 // summary:
  38                 //              Internal function to handle click actions
  39                 if(this.disabled){
  40                         event.stop(e);
  41                         return false;
  42                 }
  43                 var preventDefault = this.onClick(e) === false; // user click actions
  44                 if(!preventDefault && this.type == "submit" && !(this.valueNode||this.focusNode).form){ // see if a non-form widget needs to be signalled
  45                         for(var node=this.domNode; node.parentNode; node=node.parentNode){
  46                                 var widget=registry.byNode(node);
  47                                 if(widget && typeof widget._onSubmit == "function"){
  48                                         widget._onSubmit(e);
  49                                         preventDefault = true;
  50                                         break;
  51                                 }
  52                         }
  53                 }
  54                 if(preventDefault){
  55                         e.preventDefault();
  56                 }
  57                 return !preventDefault;
  58         },
  59
  60         postCreate: function(){
  61                 this.inherited(arguments);
  62                 dom.setSelectable(this.focusNode, false);
  63         },
  64
  65         onClick: function(/*Event*/ /*===== e =====*/){
  66                 // summary:
  67                 //              Callback for when button is clicked.
  68                 //              If type="submit", return true to perform submit, or false to cancel it.
  69                 // type:
  70                 //              callback
  71                 return true;            // Boolean
  72         },
  73
  74         _setLabelAttr: function(/*String*/ content){
  75                 // summary:
  76                 //              Hook for set('label', ...) to work.
  77                 // description:
  78                 //              Set the label (text) of the button; takes an HTML string.
  79                 this._set("label", content);
  80                 (this.containerNode||this.focusNode).innerHTML = content;
  81         }
  82 });
  83
  84 });