root / trunk / web / dojo / dijit / _editor / range.js
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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._editor.range"]){ |
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| 9 | dojo._hasResource["dijit._editor.range"]=true; |
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| 10 | dojo.provide("dijit._editor.range");
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| 11 | dijit.range={};
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| 12 | dijit.range.getIndex=function(_1,_2){ |
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| 13 | var _3=[],_4=[];
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| 14 | var _5=_2;
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| 15 | var _6=_1;
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| 16 | var _7,n;
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| 17 | while(_1!=_5){
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| 18 | var i=0; |
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| 19 | _7=_1.parentNode; |
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| 20 | while((n=_7.childNodes[i++])){
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| 21 | if(n===_1){
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| 22 | --i; |
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| 23 | break;
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| 24 | } |
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| 25 | } |
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| 26 | _3.unshift(i); |
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| 27 | _4.unshift(i-_7.childNodes.length); |
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| 28 | _1=_7; |
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| 29 | } |
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| 30 | if(_3.length>0&&_6.nodeType==3){ |
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| 31 | n=_6.previousSibling; |
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| 32 | while(n&&n.nodeType==3){ |
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| 33 | _3[_3.length-1]--;
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| 34 | n=n.previousSibling; |
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| 35 | } |
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| 36 | n=_6.nextSibling; |
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| 37 | while(n&&n.nodeType==3){ |
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| 38 | _4[_4.length-1]++;
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| 39 | n=n.nextSibling; |
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| 40 | } |
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| 41 | } |
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| 42 | return {o:_3,r:_4}; |
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| 43 | }; |
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| 44 | dijit.range.getNode=function(_8,_9){ |
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| 45 | if(!dojo.isArray(_8)||_8.length==0){ |
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| 46 | return _9;
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| 47 | } |
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| 48 | var _a=_9;
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| 49 | dojo.every(_8,function(i){
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| 50 | if(i>=0&&i<_a.childNodes.length){ |
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| 51 | _a=_a.childNodes[i]; |
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| 52 | }else{
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| 53 | _a=null;
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| 54 | return false; |
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| 55 | } |
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| 56 | return true; |
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| 57 | }); |
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| 58 | return _a;
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| 59 | }; |
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| 60 | dijit.range.getCommonAncestor=function(n1,n2,_b){ |
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| 61 | _b=_b||n1.ownerDocument.body; |
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| 62 | var _c=function(n){ |
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| 63 | var as=[];
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| 64 | while(n){
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| 65 | as.unshift(n); |
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| 66 | if(n!==_b){
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| 67 | n=n.parentNode; |
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| 68 | }else{
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| 69 | break;
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| 70 | } |
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| 71 | } |
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| 72 | return as;
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| 73 | }; |
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| 74 | var _d=_c(n1);
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| 75 | var _e=_c(n2);
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| 76 | var m=Math.min(_d.length,_e.length);
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| 77 | var _f=_d[0]; |
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| 78 | for(var i=1;i<m;i++){ |
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| 79 | if(_d[i]===_e[i]){
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| 80 | _f=_d[i]; |
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| 81 | }else{
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| 82 | break;
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| 83 | } |
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| 84 | } |
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| 85 | return _f;
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| 86 | }; |
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| 87 | dijit.range.getAncestor=function(_10,_11,_12){ |
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| 88 | _12=_12||_10.ownerDocument.body; |
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| 89 | while(_10&&_10!==_12){
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| 90 | var _13=_10.nodeName.toUpperCase();
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| 91 | if(_11.test(_13)){
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| 92 | return _10;
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| 93 | } |
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| 94 | _10=_10.parentNode; |
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| 95 | } |
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| 96 | return null; |
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| 97 | }; |
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| 98 | dijit.range.BlockTagNames=/^(?:P|DIV|H1|H2|H3|H4|H5|H6|ADDRESS|PRE|OL|UL|LI|DT|DE)$/;
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| 99 | dijit.range.getBlockAncestor=function(_14,_15,_16){ |
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| 100 | _16=_16||_14.ownerDocument.body; |
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| 101 | _15=_15||dijit.range.BlockTagNames; |
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| 102 | var _17=null,_18; |
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| 103 | while(_14&&_14!==_16){
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| 104 | var _19=_14.nodeName.toUpperCase();
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| 105 | if(!_17&&_15.test(_19)){
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| 106 | _17=_14; |
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| 107 | } |
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| 108 | if(!_18&&(/^(?:BODY|TD|TH|CAPTION)$/).test(_19)){ |
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| 109 | _18=_14; |
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| 110 | } |
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| 111 | _14=_14.parentNode; |
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| 112 | } |
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| 113 | return {blockNode:_17,blockContainer:_18||_14.ownerDocument.body}; |
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| 114 | }; |
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| 115 | dijit.range.atBeginningOfContainer=function(_1a,_1b,_1c){ |
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| 116 | var _1d=false; |
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| 117 | var _1e=(_1c==0); |
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| 118 | if(!_1e&&_1b.nodeType==3){ |
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| 119 | if(/^[\s\xA0]+$/.test(_1b.nodeValue.substr(0,_1c))){ |
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| 120 | _1e=true;
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| 121 | } |
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| 122 | } |
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| 123 | if(_1e){
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| 124 | var _1f=_1b;
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| 125 | _1d=true;
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| 126 | while(_1f&&_1f!==_1a){
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| 127 | if(_1f.previousSibling){
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| 128 | _1d=false;
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| 129 | break;
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| 130 | } |
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| 131 | _1f=_1f.parentNode; |
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| 132 | } |
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| 133 | } |
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| 134 | return _1d;
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| 135 | }; |
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| 136 | dijit.range.atEndOfContainer=function(_20,_21,_22){ |
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| 137 | var _23=false; |
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| 138 | var _24=(_22==(_21.length||_21.childNodes.length));
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| 139 | if(!_24&&_21.nodeType==3){ |
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| 140 | if(/^[\s\xA0]+$/.test(_21.nodeValue.substr(_22))){ |
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| 141 | _24=true;
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| 142 | } |
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| 143 | } |
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| 144 | if(_24){
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| 145 | var _25=_21;
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| 146 | _23=true;
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| 147 | while(_25&&_25!==_20){
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| 148 | if(_25.nextSibling){
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| 149 | _23=false;
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| 150 | break;
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| 151 | } |
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| 152 | _25=_25.parentNode; |
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| 153 | } |
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| 154 | } |
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| 155 | return _23;
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| 156 | }; |
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| 157 | dijit.range.adjacentNoneTextNode=function(_26,_27){ |
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| 158 | var _28=_26;
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| 159 | var len=(0-_26.length)||0; |
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| 160 | var _29=_27?"nextSibling":"previousSibling"; |
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| 161 | while(_28){
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| 162 | if(_28.nodeType!=3){ |
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| 163 | break;
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| 164 | } |
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| 165 | len+=_28.length; |
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| 166 | _28=_28[_29]; |
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| 167 | } |
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| 168 | return [_28,len];
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| 169 | }; |
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| 170 | dijit.range._w3c=Boolean(window["getSelection"]);
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| 171 | dijit.range.create=function(win){ |
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| 172 | if(dijit.range._w3c){
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| 173 | return (win||dojo.global).document.createRange();
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| 174 | }else{
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| 175 | return new dijit.range.W3CRange; |
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| 176 | } |
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| 177 | }; |
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| 178 | dijit.range.getSelection=function(win,_2a){ |
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| 179 | if(dijit.range._w3c){
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| 180 | return win.getSelection();
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| 181 | }else{
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| 182 | var s=new dijit.range.ie.selection(win); |
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| 183 | if(!_2a){
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| 184 | s._getCurrentSelection(); |
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| 185 | } |
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| 186 | return s;
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| 187 | } |
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| 188 | }; |
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| 189 | if(!dijit.range._w3c){
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| 190 | dijit.range.ie={cachedSelection:{},selection:function(win){
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| 191 | this._ranges=[];
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| 192 | this.addRange=function(r,_2b){ |
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| 193 | this._ranges.push(r);
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| 194 | if(!_2b){
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| 195 | r._select(); |
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| 196 | } |
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| 197 | this.rangeCount=this._ranges.length; |
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| 198 | }; |
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| 199 | this.removeAllRanges=function(){ |
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| 200 | this._ranges=[];
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| 201 | this.rangeCount=0; |
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| 202 | }; |
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| 203 | var _2c=function(){ |
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| 204 | var r=win.document.selection.createRange();
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| 205 | var _2d=win.document.selection.type.toUpperCase();
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| 206 | if(_2d=="CONTROL"){ |
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| 207 | return new dijit.range.W3CRange(dijit.range.ie.decomposeControlRange(r)); |
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| 208 | }else{
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| 209 | return new dijit.range.W3CRange(dijit.range.ie.decomposeTextRange(r)); |
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| 210 | } |
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| 211 | }; |
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| 212 | this.getRangeAt=function(i){ |
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| 213 | return this._ranges[i]; |
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| 214 | }; |
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| 215 | this._getCurrentSelection=function(){ |
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| 216 | this.removeAllRanges();
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| 217 | var r=_2c();
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| 218 | if(r){
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| 219 | this.addRange(r,true); |
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| 220 | } |
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| 221 | }; |
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| 222 | },decomposeControlRange:function(_2e){ |
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| 223 | var _2f=_2e.item(0),_30=_2e.item(_2e.length-1); |
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| 224 | var _31=_2f.parentNode,_32=_30.parentNode;
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| 225 | var _33=dijit.range.getIndex(_2f,_31).o;
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| 226 | var _34=dijit.range.getIndex(_30,_32).o+1; |
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| 227 | return [_31,_33,_32,_34];
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| 228 | },getEndPoint:function(_35,end){ |
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| 229 | var _36=_35.duplicate();
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| 230 | _36.collapse(!end); |
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| 231 | var _37="EndTo"+(end?"End":"Start"); |
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| 232 | var _38=_36.parentElement();
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| 233 | var _39,_3a,_3b;
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| 234 | if(_38.childNodes.length>0){ |
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| 235 | dojo.every(_38.childNodes,function(_3c,i){
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| 236 | var _3d;
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| 237 | if(_3c.nodeType!=3){ |
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| 238 | _36.moveToElementText(_3c); |
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| 239 | if(_36.compareEndPoints(_37,_35)>0){ |
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| 240 | if(_3b&&_3b.nodeType==3){ |
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| 241 | _39=_3b; |
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| 242 | _3d=true;
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| 243 | }else{
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| 244 | _39=_38; |
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| 245 | _3a=i; |
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| 246 | return false; |
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| 247 | } |
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| 248 | }else{
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| 249 | if(i==_38.childNodes.length-1){ |
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| 250 | _39=_38; |
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| 251 | _3a=_38.childNodes.length; |
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| 252 | return false; |
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| 253 | } |
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| 254 | } |
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| 255 | }else{
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| 256 | if(i==_38.childNodes.length-1){ |
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| 257 | _39=_3c; |
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| 258 | _3d=true;
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| 259 | } |
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| 260 | } |
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| 261 | if(_3d&&_39){
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| 262 | var _3e=dijit.range.adjacentNoneTextNode(_39)[0]; |
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| 263 | if(_3e){
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| 264 | _39=_3e.nextSibling; |
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| 265 | }else{
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| 266 | _39=_38.firstChild; |
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| 267 | } |
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| 268 | var _3f=dijit.range.adjacentNoneTextNode(_39);
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| 269 | _3e=_3f[0];
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| 270 | var _40=_3f[1]; |
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| 271 | if(_3e){
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| 272 | _36.moveToElementText(_3e); |
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| 273 | _36.collapse(false);
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| 274 | }else{
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| 275 | _36.moveToElementText(_38); |
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| 276 | } |
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| 277 | _36.setEndPoint(_37,_35); |
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| 278 | _3a=_36.text.length-_40; |
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| 279 | return false; |
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| 280 | } |
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| 281 | _3b=_3c; |
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| 282 | return true; |
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| 283 | }); |
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| 284 | }else{
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| 285 | _39=_38; |
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| 286 | _3a=0;
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| 287 | } |
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| 288 | if(!end&&_39.nodeType==1&&_3a==_39.childNodes.length){ |
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| 289 | var _41=_39.nextSibling;
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| 290 | if(_41&&_41.nodeType==3){ |
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| 291 | _39=_41; |
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| 292 | _3a=0;
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| 293 | } |
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| 294 | } |
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| 295 | return [_39,_3a];
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| 296 | },setEndPoint:function(_42,_43,_44){ |
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| 297 | var _45=_42.duplicate(),_46,len;
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| 298 | if(_43.nodeType!=3){ |
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| 299 | if(_44>0){ |
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| 300 | _46=_43.childNodes[_44-1];
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| 301 | if(_46){
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| 302 | if(_46.nodeType==3){ |
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| 303 | _43=_46; |
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| 304 | _44=_46.length; |
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| 305 | }else{
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| 306 | if(_46.nextSibling&&_46.nextSibling.nodeType==3){ |
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| 307 | _43=_46.nextSibling; |
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| 308 | _44=0;
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| 309 | }else{
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| 310 | _45.moveToElementText(_46.nextSibling?_46:_43); |
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| 311 | var _47=_46.parentNode;
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| 312 | var _48=_47.insertBefore(_46.ownerDocument.createTextNode(" "),_46.nextSibling); |
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| 313 | _45.collapse(false);
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| 314 | _47.removeChild(_48); |
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| 315 | } |
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| 316 | } |
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| 317 | } |
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| 318 | }else{
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| 319 | _45.moveToElementText(_43); |
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| 320 | _45.collapse(true);
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| 321 | } |
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| 322 | } |
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| 323 | if(_43.nodeType==3){ |
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| 324 | var _49=dijit.range.adjacentNoneTextNode(_43);
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| 325 | var _4a=_49[0]; |
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| 326 | len=_49[1];
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| 327 | if(_4a){
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| 328 | _45.moveToElementText(_4a); |
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| 329 | _45.collapse(false);
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| 330 | if(_4a.contentEditable!="inherit"){ |
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| 331 | len++; |
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| 332 | } |
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| 333 | }else{
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| 334 | _45.moveToElementText(_43.parentNode); |
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| 335 | _45.collapse(true);
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| 336 | } |
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| 337 | _44+=len; |
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| 338 | if(_44>0){ |
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| 339 | if(_45.move("character",_44)!=_44){ |
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| 340 | console.error("Error when moving!");
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| 341 | } |
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| 342 | } |
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| 343 | } |
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| 344 | return _45;
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| 345 | },decomposeTextRange:function(_4b){ |
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| 346 | var _4c=dijit.range.ie.getEndPoint(_4b);
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| 347 | var _4d=_4c[0],_4e=_4c[1]; |
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| 348 | var _4f=_4c[0],_50=_4c[1]; |
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| 349 | if(_4b.htmlText.length){
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| 350 | if(_4b.htmlText==_4b.text){
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| 351 | _50=_4e+_4b.text.length; |
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| 352 | }else{
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| 353 | _4c=dijit.range.ie.getEndPoint(_4b,true);
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| 354 | _4f=_4c[0],_50=_4c[1]; |
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| 355 | } |
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| 356 | } |
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| 357 | return [_4d,_4e,_4f,_50];
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| 358 | },setRange:function(_51,_52,_53,_54,_55,_56){ |
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| 359 | var _57=dijit.range.ie.setEndPoint(_51,_52,_53);
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| 360 | _51.setEndPoint("StartToStart",_57);
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| 361 | if(!_56){
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| 362 | var end=dijit.range.ie.setEndPoint(_51,_54,_55);
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| 363 | } |
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| 364 | _51.setEndPoint("EndToEnd",end||_57);
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| 365 | return _51;
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| 366 | }}; |
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| 367 | dojo.declare("dijit.range.W3CRange",null,{constructor:function(){ |
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| 368 | if(arguments.length>0){ |
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| 369 | this.setStart(arguments[0][0],arguments[0][1]); |
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| 370 | this.setEnd(arguments[0][2],arguments[0][3]); |
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| 371 | }else{
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| 372 | this.commonAncestorContainer=null; |
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| 373 | this.startContainer=null; |
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| 374 | this.startOffset=0; |
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| 375 | this.endContainer=null; |
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| 376 | this.endOffset=0; |
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| 377 | this.collapsed=true; |
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| 378 | } |
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| 379 | },_updateInternal:function(){ |
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| 380 | if(this.startContainer!==this.endContainer){ |
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| 381 | this.commonAncestorContainer=dijit.range.getCommonAncestor(this.startContainer,this.endContainer); |
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| 382 | }else{
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| 383 | this.commonAncestorContainer=this.startContainer; |
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| 384 | } |
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| 385 | this.collapsed=(this.startContainer===this.endContainer)&&(this.startOffset==this.endOffset); |
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| 386 | },setStart:function(_58,_59){ |
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| 387 | _59=parseInt(_59); |
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| 388 | if(this.startContainer===_58&&this.startOffset==_59){ |
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| 389 | return;
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| 390 | } |
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| 391 | delete this._cachedBookmark; |
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| 392 | this.startContainer=_58;
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| 393 | this.startOffset=_59;
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| 394 | if(!this.endContainer){ |
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| 395 | this.setEnd(_58,_59);
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| 396 | }else{
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| 397 | this._updateInternal();
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| 398 | } |
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| 399 | },setEnd:function(_5a,_5b){ |
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| 400 | _5b=parseInt(_5b); |
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| 401 | if(this.endContainer===_5a&&this.endOffset==_5b){ |
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| 402 | return;
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| 403 | } |
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| 404 | delete this._cachedBookmark; |
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| 405 | this.endContainer=_5a;
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| 406 | this.endOffset=_5b;
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| 407 | if(!this.startContainer){ |
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| 408 | this.setStart(_5a,_5b);
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| 409 | }else{
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| 410 | this._updateInternal();
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| 411 | } |
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| 412 | },setStartAfter:function(_5c,_5d){ |
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| 413 | this._setPoint("setStart",_5c,_5d,1); |
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| 414 | },setStartBefore:function(_5e,_5f){ |
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| 415 | this._setPoint("setStart",_5e,_5f,0); |
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| 416 | },setEndAfter:function(_60,_61){ |
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| 417 | this._setPoint("setEnd",_60,_61,1); |
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| 418 | },setEndBefore:function(_62,_63){ |
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| 419 | this._setPoint("setEnd",_62,_63,0); |
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| 420 | },_setPoint:function(_64,_65,_66,ext){ |
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| 421 | var _67=dijit.range.getIndex(_65,_65.parentNode).o;
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| 422 | this[_64](_65.parentNode,_67.pop()+ext);
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| 423 | },_getIERange:function(){ |
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| 424 | var r=(this._body||this.endContainer.ownerDocument.body).createTextRange(); |
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| 425 | dijit.range.ie.setRange(r,this.startContainer,this.startOffset,this.endContainer,this.endOffset,this.collapsed); |
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| 426 | return r;
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| 427 | },getBookmark:function(_68){ |
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| 428 | this._getIERange();
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| 429 | return this._cachedBookmark; |
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| 430 | },_select:function(){ |
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| 431 | var r=this._getIERange(); |
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| 432 | r.select(); |
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| 433 | },deleteContents:function(){ |
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| 434 | var r=this._getIERange(); |
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| 435 | r.pasteHTML("");
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| 436 | this.endContainer=this.startContainer; |
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| 437 | this.endOffset=this.startOffset; |
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| 438 | this.collapsed=true; |
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| 439 | },cloneRange:function(){ |
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| 440 | var r=new dijit.range.W3CRange([this.startContainer,this.startOffset,this.endContainer,this.endOffset]); |
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| 441 | r._body=this._body;
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| 442 | return r;
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| 443 | },detach:function(){ |
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| 444 | this._body=null; |
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| 445 | this.commonAncestorContainer=null; |
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| 446 | this.startContainer=null; |
||
| 447 | this.startOffset=0; |
||
| 448 | this.endContainer=null; |
||
| 449 | this.endOffset=0; |
||
| 450 | this.collapsed=true; |
||
| 451 | }}); |
||
| 452 | } |
||
| 453 | } |