lib/dijit/_KeyNavContainer.js

   1 /*
   2         Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
   3         Available via Academic Free License >= 2.1 OR the modified BSD license.
   4         see: http://dojotoolkit.org/license for details
   5 */
   6
   7
   8 if(!dojo._hasResource["dijit._KeyNavContainer"]){
   9 dojo._hasResource["dijit._KeyNavContainer"]=true;
  10 dojo.provide("dijit._KeyNavContainer");
  11 dojo.require("dijit._Container");
  12 dojo.declare("dijit._KeyNavContainer",dijit._Container,{tabIndex:"0",_keyNavCodes:{},connectKeyNavHandlers:function(_1,_2){
  13 var _3=(this._keyNavCodes={});
  14 var _4=dojo.hitch(this,this.focusPrev);
  15 var _5=dojo.hitch(this,this.focusNext);
  16 dojo.forEach(_1,function(_6){
  17 _3[_6]=_4;
  18 });
  19 dojo.forEach(_2,function(_7){
  20 _3[_7]=_5;
  21 });
  22 this.connect(this.domNode,"onkeypress","_onContainerKeypress");
  23 this.connect(this.domNode,"onfocus","_onContainerFocus");
  24 },startupKeyNavChildren:function(){
  25 dojo.forEach(this.getChildren(),dojo.hitch(this,"_startupChild"));
  26 },addChild:function(_8,_9){
  27 dijit._KeyNavContainer.superclass.addChild.apply(this,arguments);
  28 this._startupChild(_8);
  29 },focus:function(){
  30 this.focusFirstChild();
  31 },focusFirstChild:function(){
  32 var _a=this._getFirstFocusableChild();
  33 if(_a){
  34 this.focusChild(_a);
  35 }
  36 },focusNext:function(){
  37 var _b=this._getNextFocusableChild(this.focusedChild,1);
  38 this.focusChild(_b);
  39 },focusPrev:function(){
  40 var _c=this._getNextFocusableChild(this.focusedChild,-1);
  41 this.focusChild(_c,true);
  42 },focusChild:function(_d,_e){
  43 if(this.focusedChild&&_d!==this.focusedChild){
  44 this._onChildBlur(this.focusedChild);
  45 }
  46 _d.focus(_e?"end":"start");
  47 this.focusedChild=_d;
  48 },_startupChild:function(_f){
  49 _f.set("tabIndex","-1");
  50 this.connect(_f,"_onFocus",function(){
  51 _f.set("tabIndex",this.tabIndex);
  52 });
  53 this.connect(_f,"_onBlur",function(){
  54 _f.set("tabIndex","-1");
  55 });
  56 },_onContainerFocus:function(evt){
  57 if(evt.target!==this.domNode){
  58 return;
  59 }
  60 this.focusFirstChild();
  61 dojo.attr(this.domNode,"tabIndex","-1");
  62 },_onBlur:function(evt){
  63 if(this.tabIndex){
  64 dojo.attr(this.domNode,"tabIndex",this.tabIndex);
  65 }
  66 this.inherited(arguments);
  67 },_onContainerKeypress:function(evt){
  68 if(evt.ctrlKey||evt.altKey){
  69 return;
  70 }
  71 var _10=this._keyNavCodes[evt.charOrCode];
  72 if(_10){
  73 _10();
  74 dojo.stopEvent(evt);
  75 }
  76 },_onChildBlur:function(_11){
  77 },_getFirstFocusableChild:function(){
  78 return this._getNextFocusableChild(null,1);
  79 },_getNextFocusableChild:function(_12,dir){
  80 if(_12){
  81 _12=this._getSiblingOfChild(_12,dir);
  82 }
  83 var _13=this.getChildren();
  84 for(var i=0;i<_13.length;i++){
  85 if(!_12){
  86 _12=_13[(dir>0)?0:(_13.length-1)];
  87 }
  88 if(_12.isFocusable()){
  89 return _12;
  90 }
  91 _12=this._getSiblingOfChild(_12,dir);
  92 }
  93 return null;
  94 }});
  95 }