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range.js

range.js 8.9 KB
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  1. /*
    2. 

  2. 	Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved.
    3. 

  3. 	Available via Academic Free License >= 2.1 OR the modified BSD license.
    4. 

  4. 	see: http://dojotoolkit.org/license for details
    5. 

  5. */
    6. 

  6. 

  7. 

  8. if(!dojo._hasResource["dijit._editor.range"]){dojo._hasResource["dijit._editor.range"]=true;dojo.provide("dijit._editor.range");dijit.range={};dijit.range.getIndex=function(_1,_2){var _3=[],_4=[];var _5=_2;var _6=_1;var _7,n;while(_1!=_5){var i=0;_7=_1.parentNode;while((n=_7.childNodes[i++])){if(n===_1){--i;break;}}if(i>=_7.childNodes.length){dojo.debug("Error finding index of a node in dijit.range.getIndex");}_3.unshift(i);_4.unshift(i-_7.childNodes.length);_1=_7;}if(_3.length>0&&_6.nodeType==3){n=_6.previousSibling;while(n&&n.nodeType==3){_3[_3.length-1]--;n=n.previousSibling;}n=_6.nextSibling;while(n&&n.nodeType==3){_4[_4.length-1]++;n=n.nextSibling;}}return {o:_3,r:_4};};dijit.range.getNode=function(_8,_9){if(!dojo.isArray(_8)||_8.length==0){return _9;}var _a=_9;dojo.every(_8,function(i){if(i>=0&&i<_a.childNodes.length){_a=_a.childNodes[i];}else{_a=null;return false;}return true;});return _a;};dijit.range.getCommonAncestor=function(n1,n2){var _b=function(n){var as=[];while(n){as.unshift(n);if(n.nodeName!="BODY"){n=n.parentNode;}else{break;}}return as;};var _c=_b(n1);var _d=_b(n2);var m=Math.min(_c.length,_d.length);var _e=_c[0];for(var i=1;i<m;i++){if(_c[i]===_d[i]){_e=_c[i];}else{break;}}return _e;};dijit.range.getAncestor=function(_f,_10,_11){_11=_11||_f.ownerDocument.body;while(_f&&_f!==_11){var _12=_f.nodeName.toUpperCase();if(_10.test(_12)){return _f;}_f=_f.parentNode;}return null;};dijit.range.BlockTagNames=/^(?:P|DIV|H1|H2|H3|H4|H5|H6|ADDRESS|PRE|OL|UL|LI|DT|DE)$/;dijit.range.getBlockAncestor=function(_13,_14,_15){_15=_15||_13.ownerDocument.body;_14=_14||dijit.range.BlockTagNames;var _16=null,_17;while(_13&&_13!==_15){var _18=_13.nodeName.toUpperCase();if(!_16&&_14.test(_18)){_16=_13;}if(!_17&&(/^(?:BODY|TD|TH|CAPTION)$/).test(_18)){_17=_13;}_13=_13.parentNode;}return {blockNode:_16,blockContainer:_17||_13.ownerDocument.body};};dijit.range.atBeginningOfContainer=function(_19,_1a,_1b){var _1c=false;var _1d=(_1b==0);if(!_1d&&_1a.nodeType==3){if(/^[\s\xA0]+$/.test(_1a.nodeValue.substr(0,_1b))){_1d=true;}}if(_1d){var _1e=_1a;_1c=true;while(_1e&&_1e!==_19){if(_1e.previousSibling){_1c=false;break;}_1e=_1e.parentNode;}}return _1c;};dijit.range.atEndOfContainer=function(_1f,_20,_21){var _22=false;var _23=(_21==(_20.length||_20.childNodes.length));if(!_23&&_20.nodeType==3){if(/^[\s\xA0]+$/.test(_20.nodeValue.substr(_21))){_23=true;}}if(_23){var _24=_20;_22=true;while(_24&&_24!==_1f){if(_24.nextSibling){_22=false;break;}_24=_24.parentNode;}}return _22;};dijit.range.adjacentNoneTextNode=function(_25,_26){var _27=_25;var len=(0-_25.length)||0;var _28=_26?"nextSibling":"previousSibling";while(_27){if(_27.nodeType!=3){break;}len+=_27.length;_27=_27[_28];}return [_27,len];};dijit.range._w3c=Boolean(window["getSelection"]);dijit.range.create=function(win){if(dijit.range._w3c){return (win||dojo.global).document.createRange();}else{return new dijit.range.W3CRange;}};dijit.range.getSelection=function(win,_29){if(dijit.range._w3c){return win.getSelection();}else{var s=new dijit.range.ie.selection(win);if(!_29){s._getCurrentSelection();}return s;}};if(!dijit.range._w3c){dijit.range.ie={cachedSelection:{},selection:function(win){this._ranges=[];this.addRange=function(r,_2a){this._ranges.push(r);if(!_2a){r._select();}this.rangeCount=this._ranges.length;};this.removeAllRanges=function(){this._ranges=[];this.rangeCount=0;};var _2b=function(){var r=win.document.selection.createRange();var _2c=win.document.selection.type.toUpperCase();if(_2c=="CONTROL"){return new dijit.range.W3CRange(dijit.range.ie.decomposeControlRange(r));}else{return new dijit.range.W3CRange(dijit.range.ie.decomposeTextRange(r));}};this.getRangeAt=function(i){return this._ranges[i];};this._getCurrentSelection=function(){this.removeAllRanges();var r=_2b();if(r){this.addRange(r,true);}};},decomposeControlRange:function(_2d){var _2e=_2d.item(0),_2f=_2d.item(_2d.length-1);var _30=_2e.parentNode,_31=_2f.parentNode;var _32=dijit.range.getIndex(_2e,_30).o;var _33=dijit.range.getIndex(_2f,_31).o+1;return [_30,_32,_31,_33];},getEndPoint:function(_34,end){var _35=_34.duplicate();_35.collapse(!end);var _36="EndTo"+(end?"End":"Start");var _37=_35.parentElement();var _38,_39,_3a;if(_37.childNodes.length>0){dojo.every(_37.childNodes,function(_3b,i){var _3c;if(_3b.nodeType!=3){_35.moveToElementText(_3b);if(_35.compareEndPoints(_36,_34)>0){if(_3a&&_3a.nodeType==3){_38=_3a;_3c=true;}else{_38=_37;_39=i;return false;}}else{if(i==_37.childNodes.length-1){_38=_37;_39=_37.childNodes.length;return false;}}}else{if(i==_37.childNodes.length-1){_38=_3b;_3c=true;}}if(_3c&&_38){var _3d=dijit.range.adjacentNoneTextNode(_38)[0];if(_3d){_38=_3d.nextSibling;}else{_38=_37.firstChild;}var _3e=dijit.range.adjacentNoneTextNode(_38);_3d=_3e[0];var _3f=_3e[1];if(_3d){_35.moveToElementText(_3d);_35.collapse(false);}else{_35.moveToElementText(_37);}_35.setEndPoint(_36,_34);_39=_35.text.length-_3f;return false;}_3a=_3b;return true;});}else{_38=_37;_39=0;}if(!end&&_38.nodeType==1&&_39==_38.childNodes.length){var _40=_38.nextSibling;if(_40&&_40.nodeType==3){_38=_40;_39=0;}}return [_38,_39];},setEndPoint:function(_41,_42,_43){var _44=_41.duplicate(),_45,len;if(_42.nodeType!=3){if(_43>0){_45=_42.childNodes[_43-1];if(_45.nodeType==3){_42=_45;_43=_45.length;}else{if(_45.nextSibling&&_45.nextSibling.nodeType==3){_42=_45.nextSibling;_43=0;}else{_44.moveToElementText(_45.nextSibling?_45:_42);var _46=_45.parentNode;var _47=_46.insertBefore(_45.ownerDocument.createTextNode(" "),_45.nextSibling);_44.collapse(false);_46.removeChild(_47);}}}else{_44.moveToElementText(_42);_44.collapse(true);}}if(_42.nodeType==3){var _48=dijit.range.adjacentNoneTextNode(_42);var _49=_48[0];len=_48[1];if(_49){_44.moveToElementText(_49);_44.collapse(false);if(_49.contentEditable!="inherit"){len++;}}else{_44.moveToElementText(_42.parentNode);_44.collapse(true);}_43+=len;if(_43>0){if(_44.move("character",_43)!=_43){console.error("Error when moving!");}}}return _44;},decomposeTextRange:function(_4a){var _4b=dijit.range.ie.getEndPoint(_4a);var _4c=_4b[0],_4d=_4b[1];var _4e=_4b[0],_4f=_4b[1];if(_4a.htmlText.length){if(_4a.htmlText==_4a.text){_4f=_4d+_4a.text.length;}else{_4b=dijit.range.ie.getEndPoint(_4a,true);_4e=_4b[0],_4f=_4b[1];}}return [_4c,_4d,_4e,_4f];},setRange:function(_50,_51,_52,_53,_54,_55){var _56=dijit.range.ie.setEndPoint(_50,_51,_52);_50.setEndPoint("StartToStart",_56);if(!_55){var end=dijit.range.ie.setEndPoint(_50,_53,_54);}_50.setEndPoint("EndToEnd",end||_56);return _50;}};dojo.declare("dijit.range.W3CRange",null,{constructor:function(){if(arguments.length>0){this.setStart(arguments[0][0],arguments[0][1]);this.setEnd(arguments[0][2],arguments[0][3]);}else{this.commonAncestorContainer=null;this.startContainer=null;this.startOffset=0;this.endContainer=null;this.endOffset=0;this.collapsed=true;}},_updateInternal:function(){if(this.startContainer!==this.endContainer){this.commonAncestorContainer=dijit.range.getCommonAncestor(this.startContainer,this.endContainer);}else{this.commonAncestorContainer=this.startContainer;}this.collapsed=(this.startContainer===this.endContainer)&&(this.startOffset==this.endOffset);},setStart:function(_57,_58){_58=parseInt(_58);if(this.startContainer===_57&&this.startOffset==_58){return;}delete this._cachedBookmark;this.startContainer=_57;this.startOffset=_58;if(!this.endContainer){this.setEnd(_57,_58);}else{this._updateInternal();}},setEnd:function(_59,_5a){_5a=parseInt(_5a);if(this.endContainer===_59&&this.endOffset==_5a){return;}delete this._cachedBookmark;this.endContainer=_59;this.endOffset=_5a;if(!this.startContainer){this.setStart(_59,_5a);}else{this._updateInternal();}},setStartAfter:function(_5b,_5c){this._setPoint("setStart",_5b,_5c,1);},setStartBefore:function(_5d,_5e){this._setPoint("setStart",_5d,_5e,0);},setEndAfter:function(_5f,_60){this._setPoint("setEnd",_5f,_60,1);},setEndBefore:function(_61,_62){this._setPoint("setEnd",_61,_62,0);},_setPoint:function(_63,_64,_65,ext){var _66=dijit.range.getIndex(_64,_64.parentNode).o;this[_63](_64.parentNode,_66.pop()+ext);},_getIERange:function(){var r=(this._body||this.endContainer.ownerDocument.body).createTextRange();dijit.range.ie.setRange(r,this.startContainer,this.startOffset,this.endContainer,this.endOffset,this.collapsed);return r;},getBookmark:function(_67){this._getIERange();return this._cachedBookmark;},_select:function(){var r=this._getIERange();r.select();},deleteContents:function(){var r=this._getIERange();r.pasteHTML("");this.endContainer=this.startContainer;this.endOffset=this.startOffset;this.collapsed=true;},cloneRange:function(){var r=new dijit.range.W3CRange([this.startContainer,this.startOffset,this.endContainer,this.endOffset]);r._body=this._body;return r;},detach:function(){this._body=null;this.commonAncestorContainer=null;this.startContainer=null;this.startOffset=0;this.endContainer=null;this.endOffset=0;this.collapsed=true;}});}}
    9.