root / trunk / web / dojo / dijit / _editor / range.js
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/*
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Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dijit._editor.range"]){ |
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dojo._hasResource["dijit._editor.range"]=true; |
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dojo.provide("dijit._editor.range");
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dijit.range={};
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dijit.range.getIndex=function(_1,_2){ |
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var _3=[],_4=[];
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var _5=_2;
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var _6=_1;
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var _7,n;
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while(_1!=_5){
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var i=0; |
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_7=_1.parentNode; |
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while((n=_7.childNodes[i++])){
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if(n===_1){
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--i; |
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break;
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} |
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} |
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_3.unshift(i); |
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_4.unshift(i-_7.childNodes.length); |
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_1=_7; |
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} |
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if(_3.length>0&&_6.nodeType==3){ |
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n=_6.previousSibling; |
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while(n&&n.nodeType==3){ |
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_3[_3.length-1]--;
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n=n.previousSibling; |
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} |
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n=_6.nextSibling; |
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while(n&&n.nodeType==3){ |
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_4[_4.length-1]++;
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n=n.nextSibling; |
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} |
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} |
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return {o:_3,r:_4}; |
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}; |
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dijit.range.getNode=function(_8,_9){ |
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if(!dojo.isArray(_8)||_8.length==0){ |
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return _9;
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} |
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var _a=_9;
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dojo.every(_8,function(i){
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if(i>=0&&i<_a.childNodes.length){ |
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_a=_a.childNodes[i]; |
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}else{
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_a=null;
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return false; |
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} |
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return true; |
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}); |
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return _a;
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}; |
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dijit.range.getCommonAncestor=function(n1,n2,_b){ |
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_b=_b||n1.ownerDocument.body; |
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var _c=function(n){ |
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var as=[];
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while(n){
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as.unshift(n); |
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if(n!==_b){
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n=n.parentNode; |
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}else{
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break;
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} |
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} |
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return as;
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}; |
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var _d=_c(n1);
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var _e=_c(n2);
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var m=Math.min(_d.length,_e.length);
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var _f=_d[0]; |
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for(var i=1;i<m;i++){ |
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if(_d[i]===_e[i]){
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_f=_d[i]; |
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}else{
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break;
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} |
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} |
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return _f;
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}; |
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dijit.range.getAncestor=function(_10,_11,_12){ |
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_12=_12||_10.ownerDocument.body; |
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while(_10&&_10!==_12){
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var _13=_10.nodeName.toUpperCase();
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if(_11.test(_13)){
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return _10;
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} |
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_10=_10.parentNode; |
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} |
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return null; |
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}; |
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dijit.range.BlockTagNames=/^(?:P|DIV|H1|H2|H3|H4|H5|H6|ADDRESS|PRE|OL|UL|LI|DT|DE)$/;
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dijit.range.getBlockAncestor=function(_14,_15,_16){ |
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_16=_16||_14.ownerDocument.body; |
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_15=_15||dijit.range.BlockTagNames; |
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var _17=null,_18; |
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while(_14&&_14!==_16){
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var _19=_14.nodeName.toUpperCase();
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if(!_17&&_15.test(_19)){
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_17=_14; |
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} |
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if(!_18&&(/^(?:BODY|TD|TH|CAPTION)$/).test(_19)){ |
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_18=_14; |
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} |
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_14=_14.parentNode; |
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} |
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return {blockNode:_17,blockContainer:_18||_14.ownerDocument.body}; |
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}; |
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dijit.range.atBeginningOfContainer=function(_1a,_1b,_1c){ |
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var _1d=false; |
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var _1e=(_1c==0); |
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if(!_1e&&_1b.nodeType==3){ |
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if(/^[\s\xA0]+$/.test(_1b.nodeValue.substr(0,_1c))){ |
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_1e=true;
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} |
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} |
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if(_1e){
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var _1f=_1b;
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_1d=true;
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while(_1f&&_1f!==_1a){
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if(_1f.previousSibling){
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_1d=false;
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break;
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} |
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_1f=_1f.parentNode; |
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} |
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} |
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return _1d;
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}; |
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dijit.range.atEndOfContainer=function(_20,_21,_22){ |
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var _23=false; |
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var _24=(_22==(_21.length||_21.childNodes.length));
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if(!_24&&_21.nodeType==3){ |
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if(/^[\s\xA0]+$/.test(_21.nodeValue.substr(_22))){ |
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_24=true;
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} |
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} |
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if(_24){
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var _25=_21;
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_23=true;
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while(_25&&_25!==_20){
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if(_25.nextSibling){
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_23=false;
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break;
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} |
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_25=_25.parentNode; |
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} |
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} |
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return _23;
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}; |
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dijit.range.adjacentNoneTextNode=function(_26,_27){ |
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var _28=_26;
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var len=(0-_26.length)||0; |
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var _29=_27?"nextSibling":"previousSibling"; |
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while(_28){
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if(_28.nodeType!=3){ |
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break;
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} |
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len+=_28.length; |
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_28=_28[_29]; |
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} |
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return [_28,len];
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}; |
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dijit.range._w3c=Boolean(window["getSelection"]);
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dijit.range.create=function(win){ |
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if(dijit.range._w3c){
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return (win||dojo.global).document.createRange();
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}else{
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return new dijit.range.W3CRange; |
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} |
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}; |
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dijit.range.getSelection=function(win,_2a){ |
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if(dijit.range._w3c){
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return win.getSelection();
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}else{
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var s=new dijit.range.ie.selection(win); |
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if(!_2a){
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s._getCurrentSelection(); |
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} |
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return s;
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} |
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}; |
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if(!dijit.range._w3c){
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dijit.range.ie={cachedSelection:{},selection:function(win){
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this._ranges=[];
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this.addRange=function(r,_2b){ |
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this._ranges.push(r);
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if(!_2b){
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r._select(); |
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} |
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this.rangeCount=this._ranges.length; |
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}; |
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this.removeAllRanges=function(){ |
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this._ranges=[];
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this.rangeCount=0; |
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}; |
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var _2c=function(){ |
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var r=win.document.selection.createRange();
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var _2d=win.document.selection.type.toUpperCase();
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if(_2d=="CONTROL"){ |
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return new dijit.range.W3CRange(dijit.range.ie.decomposeControlRange(r)); |
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}else{
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return new dijit.range.W3CRange(dijit.range.ie.decomposeTextRange(r)); |
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} |
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}; |
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this.getRangeAt=function(i){ |
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return this._ranges[i]; |
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}; |
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this._getCurrentSelection=function(){ |
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this.removeAllRanges();
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var r=_2c();
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if(r){
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this.addRange(r,true); |
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} |
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}; |
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},decomposeControlRange:function(_2e){ |
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var _2f=_2e.item(0),_30=_2e.item(_2e.length-1); |
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var _31=_2f.parentNode,_32=_30.parentNode;
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var _33=dijit.range.getIndex(_2f,_31).o;
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var _34=dijit.range.getIndex(_30,_32).o+1; |
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return [_31,_33,_32,_34];
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},getEndPoint:function(_35,end){ |
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var _36=_35.duplicate();
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_36.collapse(!end); |
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var _37="EndTo"+(end?"End":"Start"); |
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var _38=_36.parentElement();
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var _39,_3a,_3b;
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if(_38.childNodes.length>0){ |
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dojo.every(_38.childNodes,function(_3c,i){
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var _3d;
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if(_3c.nodeType!=3){ |
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_36.moveToElementText(_3c); |
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if(_36.compareEndPoints(_37,_35)>0){ |
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if(_3b&&_3b.nodeType==3){ |
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_39=_3b; |
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_3d=true;
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}else{
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_39=_38; |
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_3a=i; |
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return false; |
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} |
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}else{
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if(i==_38.childNodes.length-1){ |
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_39=_38; |
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_3a=_38.childNodes.length; |
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return false; |
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} |
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} |
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}else{
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if(i==_38.childNodes.length-1){ |
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_39=_3c; |
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_3d=true;
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} |
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} |
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if(_3d&&_39){
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var _3e=dijit.range.adjacentNoneTextNode(_39)[0]; |
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if(_3e){
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_39=_3e.nextSibling; |
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}else{
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_39=_38.firstChild; |
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} |
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var _3f=dijit.range.adjacentNoneTextNode(_39);
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_3e=_3f[0];
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var _40=_3f[1]; |
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if(_3e){
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_36.moveToElementText(_3e); |
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_36.collapse(false);
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}else{
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_36.moveToElementText(_38); |
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} |
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_36.setEndPoint(_37,_35); |
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_3a=_36.text.length-_40; |
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return false; |
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} |
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_3b=_3c; |
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return true; |
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}); |
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}else{
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_39=_38; |
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_3a=0;
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} |
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if(!end&&_39.nodeType==1&&_3a==_39.childNodes.length){ |
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var _41=_39.nextSibling;
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if(_41&&_41.nodeType==3){ |
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_39=_41; |
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_3a=0;
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} |
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} |
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return [_39,_3a];
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},setEndPoint:function(_42,_43,_44){ |
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var _45=_42.duplicate(),_46,len;
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if(_43.nodeType!=3){ |
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if(_44>0){ |
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_46=_43.childNodes[_44-1];
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if(_46){
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if(_46.nodeType==3){ |
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_43=_46; |
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_44=_46.length; |
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}else{
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if(_46.nextSibling&&_46.nextSibling.nodeType==3){ |
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_43=_46.nextSibling; |
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_44=0;
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}else{
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_45.moveToElementText(_46.nextSibling?_46:_43); |
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var _47=_46.parentNode;
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var _48=_47.insertBefore(_46.ownerDocument.createTextNode(" "),_46.nextSibling); |
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_45.collapse(false);
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_47.removeChild(_48); |
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} |
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} |
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} |
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}else{
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_45.moveToElementText(_43); |
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_45.collapse(true);
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} |
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} |
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if(_43.nodeType==3){ |
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var _49=dijit.range.adjacentNoneTextNode(_43);
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var _4a=_49[0]; |
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len=_49[1];
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if(_4a){
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_45.moveToElementText(_4a); |
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_45.collapse(false);
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if(_4a.contentEditable!="inherit"){ |
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len++; |
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} |
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}else{
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_45.moveToElementText(_43.parentNode); |
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_45.collapse(true);
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} |
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_44+=len; |
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if(_44>0){ |
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if(_45.move("character",_44)!=_44){ |
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console.error("Error when moving!");
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} |
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} |
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} |
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return _45;
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},decomposeTextRange:function(_4b){ |
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var _4c=dijit.range.ie.getEndPoint(_4b);
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var _4d=_4c[0],_4e=_4c[1]; |
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var _4f=_4c[0],_50=_4c[1]; |
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if(_4b.htmlText.length){
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if(_4b.htmlText==_4b.text){
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_50=_4e+_4b.text.length; |
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}else{
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_4c=dijit.range.ie.getEndPoint(_4b,true);
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_4f=_4c[0],_50=_4c[1]; |
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} |
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} |
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return [_4d,_4e,_4f,_50];
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},setRange:function(_51,_52,_53,_54,_55,_56){ |
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var _57=dijit.range.ie.setEndPoint(_51,_52,_53);
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_51.setEndPoint("StartToStart",_57);
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if(!_56){
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var end=dijit.range.ie.setEndPoint(_51,_54,_55);
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} |
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_51.setEndPoint("EndToEnd",end||_57);
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return _51;
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}}; |
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dojo.declare("dijit.range.W3CRange",null,{constructor:function(){ |
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if(arguments.length>0){ |
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this.setStart(arguments[0][0],arguments[0][1]); |
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this.setEnd(arguments[0][2],arguments[0][3]); |
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}else{
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this.commonAncestorContainer=null; |
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this.startContainer=null; |
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this.startOffset=0; |
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this.endContainer=null; |
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this.endOffset=0; |
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this.collapsed=true; |
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} |
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},_updateInternal:function(){ |
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if(this.startContainer!==this.endContainer){ |
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this.commonAncestorContainer=dijit.range.getCommonAncestor(this.startContainer,this.endContainer); |
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}else{
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this.commonAncestorContainer=this.startContainer; |
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} |
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this.collapsed=(this.startContainer===this.endContainer)&&(this.startOffset==this.endOffset); |
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},setStart:function(_58,_59){ |
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_59=parseInt(_59); |
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if(this.startContainer===_58&&this.startOffset==_59){ |
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return;
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} |
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delete this._cachedBookmark; |
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this.startContainer=_58;
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this.startOffset=_59;
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if(!this.endContainer){ |
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this.setEnd(_58,_59);
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}else{
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this._updateInternal();
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} |
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},setEnd:function(_5a,_5b){ |
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_5b=parseInt(_5b); |
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if(this.endContainer===_5a&&this.endOffset==_5b){ |
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return;
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} |
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delete this._cachedBookmark; |
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this.endContainer=_5a;
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this.endOffset=_5b;
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if(!this.startContainer){ |
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this.setStart(_5a,_5b);
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}else{
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this._updateInternal();
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} |
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},setStartAfter:function(_5c,_5d){ |
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this._setPoint("setStart",_5c,_5d,1); |
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},setStartBefore:function(_5e,_5f){ |
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this._setPoint("setStart",_5e,_5f,0); |
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},setEndAfter:function(_60,_61){ |
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this._setPoint("setEnd",_60,_61,1); |
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},setEndBefore:function(_62,_63){ |
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this._setPoint("setEnd",_62,_63,0); |
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},_setPoint:function(_64,_65,_66,ext){ |
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var _67=dijit.range.getIndex(_65,_65.parentNode).o;
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this[_64](_65.parentNode,_67.pop()+ext);
|
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},_getIERange:function(){ |
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var r=(this._body||this.endContainer.ownerDocument.body).createTextRange(); |
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dijit.range.ie.setRange(r,this.startContainer,this.startOffset,this.endContainer,this.endOffset,this.collapsed); |
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return r;
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},getBookmark:function(_68){ |
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this._getIERange();
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return this._cachedBookmark; |
| 430 |
},_select:function(){ |
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var r=this._getIERange(); |
| 432 |
r.select(); |
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},deleteContents:function(){ |
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var r=this._getIERange(); |
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r.pasteHTML("");
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this.endContainer=this.startContainer; |
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this.endOffset=this.startOffset; |
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this.collapsed=true; |
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},cloneRange:function(){ |
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var r=new dijit.range.W3CRange([this.startContainer,this.startOffset,this.endContainer,this.endOffset]); |
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r._body=this._body;
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return r;
|
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},detach:function(){ |
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this._body=null; |
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this.commonAncestorContainer=null; |
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this.startContainer=null; |
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this.startOffset=0; |
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this.endContainer=null; |
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this.endOffset=0; |
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this.collapsed=true; |
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}}); |
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} |
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} |