root / trunk / web / dojo / dijit / _base / focus.js @ 10
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| 1 | 9 | andrej.cim | /*
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| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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| 4 | see: http://dojotoolkit.org/license for details
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| 5 | */
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| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dijit._base.focus"]){ |
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| 9 | dojo._hasResource["dijit._base.focus"]=true; |
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| 10 | dojo.provide("dijit._base.focus");
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| 11 | dojo.require("dojo.window");
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| 12 | dojo.require("dijit._base.manager");
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| 13 | dojo.mixin(dijit,{_curFocus:null,_prevFocus:null,isCollapsed:function(){
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| 14 | return dijit.getBookmark().isCollapsed;
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| 15 | },getBookmark:function(){ |
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| 16 | var bm,rg,tg,_1=dojo.doc.selection,cf=dijit._curFocus;
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| 17 | if(dojo.global.getSelection){
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| 18 | _1=dojo.global.getSelection(); |
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| 19 | if(_1){
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| 20 | if(_1.isCollapsed){
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| 21 | tg=cf?cf.tagName:"";
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| 22 | if(tg){
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| 23 | tg=tg.toLowerCase(); |
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| 24 | if(tg=="textarea"||(tg=="input"&&(!cf.type||cf.type.toLowerCase()=="text"))){ |
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| 25 | _1={start:cf.selectionStart,end:cf.selectionEnd,node:cf,pRange:true};
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| 26 | return {isCollapsed:(_1.end<=_1.start),mark:_1}; |
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| 27 | } |
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| 28 | } |
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| 29 | bm={isCollapsed:true};
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| 30 | }else{
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| 31 | rg=_1.getRangeAt(0);
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| 32 | bm={isCollapsed:false,mark:rg.cloneRange()};
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| 33 | } |
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| 34 | } |
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| 35 | }else{
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| 36 | if(_1){
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| 37 | tg=cf?cf.tagName:"";
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| 38 | tg=tg.toLowerCase(); |
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| 39 | if(cf&&tg&&(tg=="button"||tg=="textarea"||tg=="input")){ |
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| 40 | if(_1.type&&_1.type.toLowerCase()=="none"){ |
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| 41 | return {isCollapsed:true,mark:null}; |
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| 42 | }else{
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| 43 | rg=_1.createRange(); |
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| 44 | return {isCollapsed:rg.text&&rg.text.length?false:true,mark:{range:rg,pRange:true}}; |
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| 45 | } |
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| 46 | } |
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| 47 | bm={};
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| 48 | try{
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| 49 | rg=_1.createRange(); |
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| 50 | bm.isCollapsed=!(_1.type=="Text"?rg.htmlText.length:rg.length);
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| 51 | } |
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| 52 | catch(e){
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| 53 | bm.isCollapsed=true;
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| 54 | return bm;
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| 55 | } |
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| 56 | if(_1.type.toUpperCase()=="CONTROL"){ |
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| 57 | if(rg.length){
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| 58 | bm.mark=[]; |
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| 59 | var i=0,_2=rg.length; |
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| 60 | while(i<_2){
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| 61 | bm.mark.push(rg.item(i++)); |
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| 62 | } |
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| 63 | }else{
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| 64 | bm.isCollapsed=true;
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| 65 | bm.mark=null;
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| 66 | } |
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| 67 | }else{
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| 68 | bm.mark=rg.getBookmark(); |
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| 69 | } |
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| 70 | }else{
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| 71 | console.warn("No idea how to store the current selection for this browser!");
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| 72 | } |
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| 73 | } |
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| 74 | return bm;
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| 75 | },moveToBookmark:function(_3){ |
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| 76 | var _4=dojo.doc,_5=_3.mark;
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| 77 | if(_5){
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| 78 | if(dojo.global.getSelection){
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| 79 | var _6=dojo.global.getSelection();
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| 80 | if(_6&&_6.removeAllRanges){
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| 81 | if(_5.pRange){
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| 82 | var r=_5;
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| 83 | var n=r.node;
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| 84 | n.selectionStart=r.start; |
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| 85 | n.selectionEnd=r.end; |
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| 86 | }else{
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| 87 | _6.removeAllRanges(); |
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| 88 | _6.addRange(_5); |
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| 89 | } |
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| 90 | }else{
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| 91 | console.warn("No idea how to restore selection for this browser!");
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| 92 | } |
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| 93 | }else{
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| 94 | if(_4.selection&&_5){
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| 95 | var rg;
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| 96 | if(_5.pRange){
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| 97 | rg=_5.range; |
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| 98 | }else{
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| 99 | if(dojo.isArray(_5)){
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| 100 | rg=_4.body.createControlRange(); |
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| 101 | dojo.forEach(_5,function(n){
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| 102 | rg.addElement(n); |
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| 103 | }); |
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| 104 | }else{
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| 105 | rg=_4.body.createTextRange(); |
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| 106 | rg.moveToBookmark(_5); |
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| 107 | } |
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| 108 | } |
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| 109 | rg.select(); |
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| 110 | } |
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| 111 | } |
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| 112 | } |
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| 113 | },getFocus:function(_7,_8){ |
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| 114 | var _9=!dijit._curFocus||(_7&&dojo.isDescendant(dijit._curFocus,_7.domNode))?dijit._prevFocus:dijit._curFocus;
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| 115 | return {node:_9,bookmark:(_9==dijit._curFocus)&&dojo.withGlobal(_8||dojo.global,dijit.getBookmark),openedForWindow:_8}; |
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| 116 | },focus:function(_a){ |
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| 117 | if(!_a){
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| 118 | return;
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| 119 | } |
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| 120 | var _b="node" in _a?_a.node:_a,_c=_a.bookmark,_d=_a.openedForWindow,_e=_c?_c.isCollapsed:false; |
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| 121 | if(_b){
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| 122 | var _f=(_b.tagName.toLowerCase()=="iframe")?_b.contentWindow:_b; |
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| 123 | if(_f&&_f.focus){
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| 124 | try{
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| 125 | _f.focus(); |
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| 126 | } |
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| 127 | catch(e){
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| 128 | } |
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| 129 | } |
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| 130 | dijit._onFocusNode(_b); |
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| 131 | } |
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| 132 | if(_c&&dojo.withGlobal(_d||dojo.global,dijit.isCollapsed)&&!_e){
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| 133 | if(_d){
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| 134 | _d.focus(); |
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| 135 | } |
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| 136 | try{
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| 137 | dojo.withGlobal(_d||dojo.global,dijit.moveToBookmark,null,[_c]);
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| 138 | } |
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| 139 | catch(e2){
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| 140 | } |
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| 141 | } |
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| 142 | },_activeStack:[],registerIframe:function(_10){ |
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| 143 | return dijit.registerWin(_10.contentWindow,_10);
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| 144 | },unregisterIframe:function(_11){ |
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| 145 | dijit.unregisterWin(_11); |
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| 146 | },registerWin:function(_12,_13){ |
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| 147 | var _14=function(evt){ |
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| 148 | dijit._justMouseDowned=true;
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| 149 | setTimeout(function(){
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| 150 | dijit._justMouseDowned=false;
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| 151 | },0);
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| 152 | if(dojo.isIE&&evt&&evt.srcElement&&evt.srcElement.parentNode==null){ |
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| 153 | return;
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| 154 | } |
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| 155 | dijit._onTouchNode(_13||evt.target||evt.srcElement,"mouse");
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| 156 | }; |
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| 157 | var doc=dojo.isIE?_12.document.documentElement:_12.document;
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| 158 | if(doc){
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| 159 | if(dojo.isIE){
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| 160 | doc.attachEvent("onmousedown",_14);
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| 161 | var _15=function(evt){ |
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| 162 | if(evt.srcElement.tagName.toLowerCase()!="#document"&&dijit.isTabNavigable(evt.srcElement)){ |
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| 163 | dijit._onFocusNode(_13||evt.srcElement); |
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| 164 | }else{
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| 165 | dijit._onTouchNode(_13||evt.srcElement); |
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| 166 | } |
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| 167 | }; |
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| 168 | doc.attachEvent("onactivate",_15);
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| 169 | var _16=function(evt){ |
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| 170 | dijit._onBlurNode(_13||evt.srcElement); |
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| 171 | }; |
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| 172 | doc.attachEvent("ondeactivate",_16);
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| 173 | return function(){ |
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| 174 | doc.detachEvent("onmousedown",_14);
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| 175 | doc.detachEvent("onactivate",_15);
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| 176 | doc.detachEvent("ondeactivate",_16);
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| 177 | doc=null;
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| 178 | }; |
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| 179 | }else{
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| 180 | doc.addEventListener("mousedown",_14,true); |
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| 181 | var _17=function(evt){ |
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| 182 | dijit._onFocusNode(_13||evt.target); |
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| 183 | }; |
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| 184 | doc.addEventListener("focus",_17,true); |
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| 185 | var _18=function(evt){ |
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| 186 | dijit._onBlurNode(_13||evt.target); |
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| 187 | }; |
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| 188 | doc.addEventListener("blur",_18,true); |
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| 189 | return function(){ |
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| 190 | doc.removeEventListener("mousedown",_14,true); |
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| 191 | doc.removeEventListener("focus",_17,true); |
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| 192 | doc.removeEventListener("blur",_18,true); |
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| 193 | doc=null;
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| 194 | }; |
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| 195 | } |
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| 196 | } |
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| 197 | },unregisterWin:function(_19){ |
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| 198 | _19&&_19(); |
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| 199 | },_onBlurNode:function(_1a){ |
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| 200 | dijit._prevFocus=dijit._curFocus; |
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| 201 | dijit._curFocus=null;
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| 202 | if(dijit._justMouseDowned){
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| 203 | return;
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| 204 | } |
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| 205 | if(dijit._clearActiveWidgetsTimer){
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| 206 | clearTimeout(dijit._clearActiveWidgetsTimer); |
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| 207 | } |
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| 208 | dijit._clearActiveWidgetsTimer=setTimeout(function(){
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| 209 | delete dijit._clearActiveWidgetsTimer;
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| 210 | dijit._setStack([]); |
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| 211 | dijit._prevFocus=null;
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| 212 | },100);
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| 213 | },_onTouchNode:function(_1b,by){ |
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| 214 | if(dijit._clearActiveWidgetsTimer){
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| 215 | clearTimeout(dijit._clearActiveWidgetsTimer); |
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| 216 | delete dijit._clearActiveWidgetsTimer;
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| 217 | } |
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| 218 | var _1c=[];
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| 219 | try{
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| 220 | while(_1b){
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| 221 | var _1d=dojo.attr(_1b,"dijitPopupParent"); |
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| 222 | if(_1d){
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| 223 | _1b=dijit.byId(_1d).domNode; |
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| 224 | }else{
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| 225 | if(_1b.tagName&&_1b.tagName.toLowerCase()=="body"){ |
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| 226 | if(_1b===dojo.body()){
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| 227 | break;
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| 228 | } |
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| 229 | _1b=dojo.window.get(_1b.ownerDocument).frameElement; |
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| 230 | }else{
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| 231 | var id=_1b.getAttribute&&_1b.getAttribute("widgetId"),_1e=id&&dijit.byId(id); |
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| 232 | if(_1e&&!(by=="mouse"&&_1e.get("disabled"))){ |
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| 233 | _1c.unshift(id); |
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| 234 | } |
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| 235 | _1b=_1b.parentNode; |
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| 236 | } |
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| 237 | } |
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| 238 | } |
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| 239 | } |
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| 240 | catch(e){
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| 241 | } |
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| 242 | dijit._setStack(_1c,by); |
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| 243 | },_onFocusNode:function(_1f){ |
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| 244 | if(!_1f){
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| 245 | return;
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| 246 | } |
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| 247 | if(_1f.nodeType==9){ |
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| 248 | return;
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| 249 | } |
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| 250 | dijit._onTouchNode(_1f); |
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| 251 | if(_1f==dijit._curFocus){
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| 252 | return;
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| 253 | } |
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| 254 | if(dijit._curFocus){
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| 255 | dijit._prevFocus=dijit._curFocus; |
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| 256 | } |
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| 257 | dijit._curFocus=_1f; |
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| 258 | dojo.publish("focusNode",[_1f]);
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| 259 | },_setStack:function(_20,by){ |
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| 260 | var _21=dijit._activeStack;
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| 261 | dijit._activeStack=_20; |
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| 262 | for(var _22=0;_22<Math.min(_21.length,_20.length);_22++){ |
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| 263 | if(_21[_22]!=_20[_22]){
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| 264 | break;
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| 265 | } |
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| 266 | } |
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| 267 | var _23;
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| 268 | for(var i=_21.length-1;i>=_22;i--){ |
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| 269 | _23=dijit.byId(_21[i]); |
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| 270 | if(_23){
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| 271 | _23._focused=false;
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| 272 | _23._hasBeenBlurred=true;
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| 273 | if(_23._onBlur){
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| 274 | _23._onBlur(by); |
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| 275 | } |
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| 276 | dojo.publish("widgetBlur",[_23,by]);
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| 277 | } |
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| 278 | } |
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| 279 | for(i=_22;i<_20.length;i++){
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| 280 | _23=dijit.byId(_20[i]); |
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| 281 | if(_23){
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| 282 | _23._focused=true;
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| 283 | if(_23._onFocus){
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| 284 | _23._onFocus(by); |
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| 285 | } |
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| 286 | dojo.publish("widgetFocus",[_23,by]);
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| 287 | } |
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| 288 | } |
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| 289 | }}); |
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| 290 | dojo.addOnLoad(function(){
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| 291 | var _24=dijit.registerWin(window);
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| 292 | if(dojo.isIE){
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| 293 | dojo.addOnWindowUnload(function(){
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| 294 | dijit.unregisterWin(_24); |
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| 295 | _24=null;
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| 296 | }); |
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| 297 | } |
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| 298 | }); |
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| 299 | } |