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/* |
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* FCKeditor - The text editor for Internet - http://www.fckeditor.net |
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* Copyright (C) 2003-2009 Frederico Caldeira Knabben |
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* |
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* == BEGIN LICENSE == |
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* |
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* Licensed under the terms of any of the following licenses at your |
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* choice: |
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* |
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* - GNU General Public License Version 2 or later (the "GPL") |
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* http://www.gnu.org/licenses/gpl.html |
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* |
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* - GNU Lesser General Public License Version 2.1 or later (the "LGPL") |
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* http://www.gnu.org/licenses/lgpl.html |
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* |
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* - Mozilla Public License Version 1.1 or later (the "MPL") |
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* http://www.mozilla.org/MPL/MPL-1.1.html |
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* |
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* == END LICENSE == |
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* |
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* Class for working with a selection range, much like the W3C DOM Range, but |
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* it is not intended to be an implementation of the W3C interface. |
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*/ |
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|
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var FCKDomRange = function( sourceWindow ) |
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{ |
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this.Window = sourceWindow ; |
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this._Cache = {} ; |
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} |
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|
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FCKDomRange.prototype = |
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{ |
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|
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_UpdateElementInfo : function() |
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{ |
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var innerRange = this._Range ; |
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|
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if ( !innerRange ) |
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this.Release( true ) ; |
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else |
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{ |
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// For text nodes, the node itself is the StartNode. |
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var eStart = innerRange.startContainer ; |
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|
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var oElementPath = new FCKElementPath( eStart ) ; |
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this.StartNode = eStart.nodeType == 3 ? eStart : eStart.childNodes[ innerRange.startOffset ] ; |
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this.StartContainer = eStart ; |
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this.StartBlock = oElementPath.Block ; |
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this.StartBlockLimit = oElementPath.BlockLimit ; |
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|
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if ( innerRange.collapsed ) |
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{ |
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this.EndNode = this.StartNode ; |
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this.EndContainer = this.StartContainer ; |
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this.EndBlock = this.StartBlock ; |
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this.EndBlockLimit = this.StartBlockLimit ; |
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} |
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else |
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{ |
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var eEnd = innerRange.endContainer ; |
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|
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if ( eStart != eEnd ) |
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oElementPath = new FCKElementPath( eEnd ) ; |
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|
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// The innerRange.endContainer[ innerRange.endOffset ] is not |
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// usually part of the range, but the marker for the range end. So, |
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// let's get the previous available node as the real end. |
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var eEndNode = eEnd ; |
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if ( innerRange.endOffset == 0 ) |
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{ |
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while ( eEndNode && !eEndNode.previousSibling ) |
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eEndNode = eEndNode.parentNode ; |
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|
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if ( eEndNode ) |
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eEndNode = eEndNode.previousSibling ; |
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} |
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else if ( eEndNode.nodeType == 1 ) |
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eEndNode = eEndNode.childNodes[ innerRange.endOffset - 1 ] ; |
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|
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this.EndNode = eEndNode ; |
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this.EndContainer = eEnd ; |
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this.EndBlock = oElementPath.Block ; |
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this.EndBlockLimit = oElementPath.BlockLimit ; |
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} |
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} |
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|
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this._Cache = {} ; |
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}, |
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|
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CreateRange : function() |
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{ |
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return new FCKW3CRange( this.Window.document ) ; |
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}, |
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|
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DeleteContents : function() |
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{ |
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if ( this._Range ) |
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{ |
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this._Range.deleteContents() ; |
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this._UpdateElementInfo() ; |
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} |
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}, |
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|
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ExtractContents : function() |
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{ |
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if ( this._Range ) |
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{ |
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var docFrag = this._Range.extractContents() ; |
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this._UpdateElementInfo() ; |
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return docFrag ; |
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} |
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return null ; |
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}, |
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|
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CheckIsCollapsed : function() |
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{ |
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if ( this._Range ) |
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return this._Range.collapsed ; |
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|
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return false ; |
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}, |
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|
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Collapse : function( toStart ) |
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{ |
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if ( this._Range ) |
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this._Range.collapse( toStart ) ; |
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|
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this._UpdateElementInfo() ; |
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}, |
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|
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Clone : function() |
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{ |
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var oClone = FCKTools.CloneObject( this ) ; |
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|
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if ( this._Range ) |
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oClone._Range = this._Range.cloneRange() ; |
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|
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return oClone ; |
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}, |
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|
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MoveToNodeContents : function( targetNode ) |
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{ |
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if ( !this._Range ) |
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this._Range = this.CreateRange() ; |
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|
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this._Range.selectNodeContents( targetNode ) ; |
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|
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this._UpdateElementInfo() ; |
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}, |
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|
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MoveToElementStart : function( targetElement ) |
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{ |
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this.SetStart(targetElement,1) ; |
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this.SetEnd(targetElement,1) ; |
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}, |
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|
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// Moves to the first editing point inside a element. For example, in a |
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// element tree like "<p><b><i></i></b> Text</p>", the start editing point |
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// is "<p><b><i>^</i></b> Text</p>" (inside <i>). |
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MoveToElementEditStart : function( targetElement ) |
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{ |
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var editableElement ; |
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|
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while ( targetElement && targetElement.nodeType == 1 ) |
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{ |
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if ( FCKDomTools.CheckIsEditable( targetElement ) ) |
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editableElement = targetElement ; |
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else if ( editableElement ) |
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break ; // If we already found an editable element, stop the loop. |
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|
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targetElement = targetElement.firstChild ; |
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} |
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|
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if ( editableElement ) |
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this.MoveToElementStart( editableElement ) ; |
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}, |
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|
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InsertNode : function( node ) |
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{ |
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if ( this._Range ) |
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this._Range.insertNode( node ) ; |
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}, |
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|
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CheckIsEmpty : function() |
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{ |
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if ( this.CheckIsCollapsed() ) |
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return true ; |
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|
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// Inserts the contents of the range in a div tag. |
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var eToolDiv = this.Window.document.createElement( 'div' ) ; |
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this._Range.cloneContents().AppendTo( eToolDiv ) ; |
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|
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FCKDomTools.TrimNode( eToolDiv ) ; |
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|
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return ( eToolDiv.innerHTML.length == 0 ) ; |
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}, |
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|
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/** |
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* Checks if the start boundary of the current range is "visually" (like a |
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* selection caret) at the beginning of the block. It means that some |
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* things could be brefore the range, like spaces or empty inline elements, |
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* but it would still be considered at the beginning of the block. |
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*/ |
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CheckStartOfBlock : function() |
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{ |
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var cache = this._Cache ; |
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var bIsStartOfBlock = cache.IsStartOfBlock ; |
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|
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if ( bIsStartOfBlock != undefined ) |
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return bIsStartOfBlock ; |
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|
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// Take the block reference. |
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var block = this.StartBlock || this.StartBlockLimit ; |
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|
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var container = this._Range.startContainer ; |
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var offset = this._Range.startOffset ; |
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var currentNode ; |
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|
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if ( offset > 0 ) |
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{ |
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// First, check the start container. If it is a text node, get the |
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// substring of the node value before the range offset. |
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if ( container.nodeType == 3 ) |
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{ |
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var textValue = container.nodeValue.substr( 0, offset ).Trim() ; |
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|
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// If we have some text left in the container, we are not at |
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// the end for the block. |
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if ( textValue.length != 0 ) |
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return cache.IsStartOfBlock = false ; |
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} |
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else |
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currentNode = container.childNodes[ offset - 1 ] ; |
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} |
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|
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// We'll not have a currentNode if the container was a text node, or |
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// the offset is zero. |
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if ( !currentNode ) |
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currentNode = FCKDomTools.GetPreviousSourceNode( container, true, null, block ) ; |
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|
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while ( currentNode ) |
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{ |
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switch ( currentNode.nodeType ) |
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{ |
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case 1 : |
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// It's not an inline element. |
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if ( !FCKListsLib.InlineChildReqElements[ currentNode.nodeName.toLowerCase() ] ) |
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return cache.IsStartOfBlock = false ; |
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|
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break ; |
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|
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case 3 : |
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// It's a text node with real text. |
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if ( currentNode.nodeValue.Trim().length > 0 ) |
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return cache.IsStartOfBlock = false ; |
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} |
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|
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currentNode = FCKDomTools.GetPreviousSourceNode( currentNode, false, null, block ) ; |
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} |
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|
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return cache.IsStartOfBlock = true ; |
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}, |
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|
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/** |
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* Checks if the end boundary of the current range is "visually" (like a |
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* selection caret) at the end of the block. It means that some things |
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* could be after the range, like spaces, empty inline elements, or a |
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* single <br>, but it would still be considered at the end of the block. |
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*/ |
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CheckEndOfBlock : function( refreshSelection ) |
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{ |
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var isEndOfBlock = this._Cache.IsEndOfBlock ; |
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|
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if ( isEndOfBlock != undefined ) |
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return isEndOfBlock ; |
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|
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// Take the block reference. |
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var block = this.EndBlock || this.EndBlockLimit ; |
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|
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var container = this._Range.endContainer ; |
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var offset = this._Range.endOffset ; |
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var currentNode ; |
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|
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// First, check the end container. If it is a text node, get the |
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// substring of the node value after the range offset. |
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if ( container.nodeType == 3 ) |
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{ |
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var textValue = container.nodeValue ; |
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if ( offset < textValue.length ) |
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{ |
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textValue = textValue.substr( offset ) ; |
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|
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// If we have some text left in the container, we are not at |
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// the end for the block. |
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if ( textValue.Trim().length != 0 ) |
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return this._Cache.IsEndOfBlock = false ; |
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} |
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} |
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else |
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currentNode = container.childNodes[ offset ] ; |
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|
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// We'll not have a currentNode if the container was a text node, of |
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// the offset is out the container children limits (after it probably). |
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if ( !currentNode ) |
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currentNode = FCKDomTools.GetNextSourceNode( container, true, null, block ) ; |
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|
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var hadBr = false ; |
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|
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while ( currentNode ) |
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{ |
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switch ( currentNode.nodeType ) |
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{ |
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case 1 : |
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var nodeName = currentNode.nodeName.toLowerCase() ; |
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|
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// It's an inline element. |
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if ( FCKListsLib.InlineChildReqElements[ nodeName ] ) |
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break ; |
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|
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// It is the first <br> found. |
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if ( nodeName == 'br' && !hadBr ) |
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{ |
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hadBr = true ; |
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break ; |
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} |
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|
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return this._Cache.IsEndOfBlock = false ; |
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|
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case 3 : |
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// It's a text node with real text. |
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if ( currentNode.nodeValue.Trim().length > 0 ) |
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return this._Cache.IsEndOfBlock = false ; |
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} |
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|
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currentNode = FCKDomTools.GetNextSourceNode( currentNode, false, null, block ) ; |
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} |
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|
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if ( refreshSelection ) |
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this.Select() ; |
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|
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return this._Cache.IsEndOfBlock = true ; |
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}, |
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|
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// This is an "intrusive" way to create a bookmark. It includes <span> tags |
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// in the range boundaries. The advantage of it is that it is possible to |
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// handle DOM mutations when moving back to the bookmark. |
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// Attention: the inclusion of nodes in the DOM is a design choice and |
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// should not be changed as there are other points in the code that may be |
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// using those nodes to perform operations. See GetBookmarkNode. |
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// For performance, includeNodes=true if intended to SelectBookmark. |
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CreateBookmark : function( includeNodes ) |
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{ |
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// Create the bookmark info (random IDs). |
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var oBookmark = |
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{ |
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StartId : (new Date()).valueOf() + Math.floor(Math.random()*1000) + 'S', |
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EndId : (new Date()).valueOf() + Math.floor(Math.random()*1000) + 'E' |
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} ; |
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|
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var oDoc = this.Window.document ; |
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var eStartSpan ; |
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var eEndSpan ; |
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var oClone ; |
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|
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// For collapsed ranges, add just the start marker. |
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if ( !this.CheckIsCollapsed() ) |
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{ |
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eEndSpan = oDoc.createElement( 'span' ) ; |
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eEndSpan.style.display = 'none' ; |
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eEndSpan.id = oBookmark.EndId ; |
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eEndSpan.setAttribute( '_fck_bookmark', true ) ; |
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|
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// For IE, it must have something inside, otherwise it may be |
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// removed during DOM operations. |
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// if ( FCKBrowserInfo.IsIE ) |
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eEndSpan.innerHTML = ' ' ; |
| 377 |
|
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oClone = this.Clone() ; |
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oClone.Collapse( false ) ; |
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oClone.InsertNode( eEndSpan ) ; |
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} |
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|
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eStartSpan = oDoc.createElement( 'span' ) ; |
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eStartSpan.style.display = 'none' ; |
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eStartSpan.id = oBookmark.StartId ; |
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eStartSpan.setAttribute( '_fck_bookmark', true ) ; |
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|
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// For IE, it must have something inside, otherwise it may be removed |
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// during DOM operations. |
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// if ( FCKBrowserInfo.IsIE ) |
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eStartSpan.innerHTML = ' ' ; |
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|
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oClone = this.Clone() ; |
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oClone.Collapse( true ) ; |
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oClone.InsertNode( eStartSpan ) ; |
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|
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if ( includeNodes ) |
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{ |
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oBookmark.StartNode = eStartSpan ; |
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oBookmark.EndNode = eEndSpan ; |
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} |
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|
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// Update the range position. |
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if ( eEndSpan ) |
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{ |
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this.SetStart( eStartSpan, 4 ) ; |
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this.SetEnd( eEndSpan, 3 ) ; |
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} |
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else |
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this.MoveToPosition( eStartSpan, 4 ) ; |
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|
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return oBookmark ; |
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}, |
| 414 |
|
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// This one should be a part of a hypothetic "bookmark" object. |
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GetBookmarkNode : function( bookmark, start ) |
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{ |
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var doc = this.Window.document ; |
| 419 |
|
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if ( start ) |
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return bookmark.StartNode || doc.getElementById( bookmark.StartId ) ; |
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else |
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return bookmark.EndNode || doc.getElementById( bookmark.EndId ) ; |
| 424 |
}, |
| 425 |
|
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MoveToBookmark : function( bookmark, preserveBookmark ) |
| 427 |
{ |
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var eStartSpan = this.GetBookmarkNode( bookmark, true ) ; |
| 429 |
var eEndSpan = this.GetBookmarkNode( bookmark, false ) ; |
| 430 |
|
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this.SetStart( eStartSpan, 3 ) ; |
| 432 |
|
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if ( !preserveBookmark ) |
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FCKDomTools.RemoveNode( eStartSpan ) ; |
| 435 |
|
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// If collapsed, the end span will not be available. |
| 437 |
if ( eEndSpan ) |
| 438 |
{ |
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this.SetEnd( eEndSpan, 3 ) ; |
| 440 |
|
| 441 |
if ( !preserveBookmark ) |
| 442 |
FCKDomTools.RemoveNode( eEndSpan ) ; |
| 443 |
} |
| 444 |
else |
| 445 |
this.Collapse( true ) ; |
| 446 |
|
| 447 |
this._UpdateElementInfo() ; |
| 448 |
}, |
| 449 |
|
| 450 |
// Non-intrusive bookmark algorithm |
| 451 |
CreateBookmark2 : function() |
| 452 |
{ |
| 453 |
// If there is no range then get out of here. |
| 454 |
// It happens on initial load in Safari #962 and if the editor it's hidden also in Firefox |
| 455 |
if ( ! this._Range ) |
| 456 |
return { "Start" : 0, "End" : 0 } ; |
| 457 |
|
| 458 |
// First, we record down the offset values |
| 459 |
var bookmark = |
| 460 |
{ |
| 461 |
"Start" : [ this._Range.startOffset ], |
| 462 |
"End" : [ this._Range.endOffset ] |
| 463 |
} ; |
| 464 |
// Since we're treating the document tree as normalized, we need to backtrack the text lengths |
| 465 |
// of previous text nodes into the offset value. |
| 466 |
var curStart = this._Range.startContainer.previousSibling ; |
| 467 |
var curEnd = this._Range.endContainer.previousSibling ; |
| 468 |
|
| 469 |
// Also note that the node that we use for "address base" would change during backtracking. |
| 470 |
var addrStart = this._Range.startContainer ; |
| 471 |
var addrEnd = this._Range.endContainer ; |
| 472 |
while ( curStart && curStart.nodeType == 3 && addrStart.nodeType == 3 ) |
| 473 |
{ |
| 474 |
bookmark.Start[0] += curStart.length ; |
| 475 |
addrStart = curStart ; |
| 476 |
curStart = curStart.previousSibling ; |
| 477 |
} |
| 478 |
while ( curEnd && curEnd.nodeType == 3 && addrEnd.nodeType == 3 ) |
| 479 |
{ |
| 480 |
bookmark.End[0] += curEnd.length ; |
| 481 |
addrEnd = curEnd ; |
| 482 |
curEnd = curEnd.previousSibling ; |
| 483 |
} |
| 484 |
|
| 485 |
// If the object pointed to by the startOffset and endOffset are text nodes, we need |
| 486 |
// to backtrack and add in the text offset to the bookmark addresses. |
| 487 |
if ( addrStart.nodeType == 1 && addrStart.childNodes[bookmark.Start[0]] && addrStart.childNodes[bookmark.Start[0]].nodeType == 3 ) |
| 488 |
{ |
| 489 |
var curNode = addrStart.childNodes[bookmark.Start[0]] ; |
| 490 |
var offset = 0 ; |
| 491 |
while ( curNode.previousSibling && curNode.previousSibling.nodeType == 3 ) |
| 492 |
{ |
| 493 |
curNode = curNode.previousSibling ; |
| 494 |
offset += curNode.length ; |
| 495 |
} |
| 496 |
addrStart = curNode ; |
| 497 |
bookmark.Start[0] = offset ; |
| 498 |
} |
| 499 |
if ( addrEnd.nodeType == 1 && addrEnd.childNodes[bookmark.End[0]] && addrEnd.childNodes[bookmark.End[0]].nodeType == 3 ) |
| 500 |
{ |
| 501 |
var curNode = addrEnd.childNodes[bookmark.End[0]] ; |
| 502 |
var offset = 0 ; |
| 503 |
while ( curNode.previousSibling && curNode.previousSibling.nodeType == 3 ) |
| 504 |
{ |
| 505 |
curNode = curNode.previousSibling ; |
| 506 |
offset += curNode.length ; |
| 507 |
} |
| 508 |
addrEnd = curNode ; |
| 509 |
bookmark.End[0] = offset ; |
| 510 |
} |
| 511 |
|
| 512 |
// Then, we record down the precise position of the container nodes |
| 513 |
// by walking up the DOM tree and counting their childNode index |
| 514 |
bookmark.Start = FCKDomTools.GetNodeAddress( addrStart, true ).concat( bookmark.Start ) ; |
| 515 |
bookmark.End = FCKDomTools.GetNodeAddress( addrEnd, true ).concat( bookmark.End ) ; |
| 516 |
return bookmark; |
| 517 |
}, |
| 518 |
|
| 519 |
MoveToBookmark2 : function( bookmark ) |
| 520 |
{ |
| 521 |
// Reverse the childNode counting algorithm in CreateBookmark2() |
| 522 |
var curStart = FCKDomTools.GetNodeFromAddress( this.Window.document, bookmark.Start.slice( 0, -1 ), true ) ; |
| 523 |
var curEnd = FCKDomTools.GetNodeFromAddress( this.Window.document, bookmark.End.slice( 0, -1 ), true ) ; |
| 524 |
|
| 525 |
// Generate the W3C Range object and update relevant data |
| 526 |
this.Release( true ) ; |
| 527 |
this._Range = new FCKW3CRange( this.Window.document ) ; |
| 528 |
var startOffset = bookmark.Start[ bookmark.Start.length - 1 ] ; |
| 529 |
var endOffset = bookmark.End[ bookmark.End.length - 1 ] ; |
| 530 |
while ( curStart.nodeType == 3 && startOffset > curStart.length ) |
| 531 |
{ |
| 532 |
if ( ! curStart.nextSibling || curStart.nextSibling.nodeType != 3 ) |
| 533 |
break ; |
| 534 |
startOffset -= curStart.length ; |
| 535 |
curStart = curStart.nextSibling ; |
| 536 |
} |
| 537 |
while ( curEnd.nodeType == 3 && endOffset > curEnd.length ) |
| 538 |
{ |
| 539 |
if ( ! curEnd.nextSibling || curEnd.nextSibling.nodeType != 3 ) |
| 540 |
break ; |
| 541 |
endOffset -= curEnd.length ; |
| 542 |
curEnd = curEnd.nextSibling ; |
| 543 |
} |
| 544 |
this._Range.setStart( curStart, startOffset ) ; |
| 545 |
this._Range.setEnd( curEnd, endOffset ) ; |
| 546 |
this._UpdateElementInfo() ; |
| 547 |
}, |
| 548 |
|
| 549 |
MoveToPosition : function( targetElement, position ) |
| 550 |
{ |
| 551 |
this.SetStart( targetElement, position ) ; |
| 552 |
this.Collapse( true ) ; |
| 553 |
}, |
| 554 |
|
| 555 |
/* |
| 556 |
* Moves the position of the start boundary of the range to a specific position |
| 557 |
* relatively to a element. |
| 558 |
* @position: |
| 559 |
* 1 = After Start <target>^contents</target> |
| 560 |
* 2 = Before End <target>contents^</target> |
| 561 |
* 3 = Before Start ^<target>contents</target> |
| 562 |
* 4 = After End <target>contents</target>^ |
| 563 |
*/ |
| 564 |
SetStart : function( targetElement, position, noInfoUpdate ) |
| 565 |
{ |
| 566 |
var oRange = this._Range ; |
| 567 |
if ( !oRange ) |
| 568 |
oRange = this._Range = this.CreateRange() ; |
| 569 |
|
| 570 |
switch( position ) |
| 571 |
{ |
| 572 |
case 1 : // After Start <target>^contents</target> |
| 573 |
oRange.setStart( targetElement, 0 ) ; |
| 574 |
break ; |
| 575 |
|
| 576 |
case 2 : // Before End <target>contents^</target> |
| 577 |
oRange.setStart( targetElement, targetElement.childNodes.length ) ; |
| 578 |
break ; |
| 579 |
|
| 580 |
case 3 : // Before Start ^<target>contents</target> |
| 581 |
oRange.setStartBefore( targetElement ) ; |
| 582 |
break ; |
| 583 |
|
| 584 |
case 4 : // After End <target>contents</target>^ |
| 585 |
oRange.setStartAfter( targetElement ) ; |
| 586 |
} |
| 587 |
|
| 588 |
if ( !noInfoUpdate ) |
| 589 |
this._UpdateElementInfo() ; |
| 590 |
}, |
| 591 |
|
| 592 |
/* |
| 593 |
* Moves the position of the start boundary of the range to a specific position |
| 594 |
* relatively to a element. |
| 595 |
* @position: |
| 596 |
* 1 = After Start <target>^contents</target> |
| 597 |
* 2 = Before End <target>contents^</target> |
| 598 |
* 3 = Before Start ^<target>contents</target> |
| 599 |
* 4 = After End <target>contents</target>^ |
| 600 |
*/ |
| 601 |
SetEnd : function( targetElement, position, noInfoUpdate ) |
| 602 |
{ |
| 603 |
var oRange = this._Range ; |
| 604 |
if ( !oRange ) |
| 605 |
oRange = this._Range = this.CreateRange() ; |
| 606 |
|
| 607 |
switch( position ) |
| 608 |
{ |
| 609 |
case 1 : // After Start <target>^contents</target> |
| 610 |
oRange.setEnd( targetElement, 0 ) ; |
| 611 |
break ; |
| 612 |
|
| 613 |
case 2 : // Before End <target>contents^</target> |
| 614 |
oRange.setEnd( targetElement, targetElement.childNodes.length ) ; |
| 615 |
break ; |
| 616 |
|
| 617 |
case 3 : // Before Start ^<target>contents</target> |
| 618 |
oRange.setEndBefore( targetElement ) ; |
| 619 |
break ; |
| 620 |
|
| 621 |
case 4 : // After End <target>contents</target>^ |
| 622 |
oRange.setEndAfter( targetElement ) ; |
| 623 |
} |
| 624 |
|
| 625 |
if ( !noInfoUpdate ) |
| 626 |
this._UpdateElementInfo() ; |
| 627 |
}, |
| 628 |
|
| 629 |
Expand : function( unit ) |
| 630 |
{ |
| 631 |
var oNode, oSibling ; |
| 632 |
|
| 633 |
switch ( unit ) |
| 634 |
{ |
| 635 |
// Expand the range to include all inline parent elements if we are |
| 636 |
// are in their boundary limits. |
| 637 |
// For example (where [ ] are the range limits): |
| 638 |
// Before => Some <b>[<i>Some sample text]</i></b>. |
| 639 |
// After => Some [<b><i>Some sample text</i></b>]. |
| 640 |
case 'inline_elements' : |
| 641 |
// Expand the start boundary. |
| 642 |
if ( this._Range.startOffset == 0 ) |
| 643 |
{ |
| 644 |
oNode = this._Range.startContainer ; |
| 645 |
|
| 646 |
if ( oNode.nodeType != 1 ) |
| 647 |
oNode = oNode.previousSibling ? null : oNode.parentNode ; |
| 648 |
|
| 649 |
if ( oNode ) |
| 650 |
{ |
| 651 |
while ( FCKListsLib.InlineNonEmptyElements[ oNode.nodeName.toLowerCase() ] ) |
| 652 |
{ |
| 653 |
this._Range.setStartBefore( oNode ) ; |
| 654 |
|
| 655 |
if ( oNode != oNode.parentNode.firstChild ) |
| 656 |
break ; |
| 657 |
|
| 658 |
oNode = oNode.parentNode ; |
| 659 |
} |
| 660 |
} |
| 661 |
} |
| 662 |
|
| 663 |
// Expand the end boundary. |
| 664 |
oNode = this._Range.endContainer ; |
| 665 |
var offset = this._Range.endOffset ; |
| 666 |
|
| 667 |
if ( ( oNode.nodeType == 3 && offset >= oNode.nodeValue.length ) || ( oNode.nodeType == 1 && offset >= oNode.childNodes.length ) || ( oNode.nodeType != 1 && oNode.nodeType != 3 ) ) |
| 668 |
{ |
| 669 |
if ( oNode.nodeType != 1 ) |
| 670 |
oNode = oNode.nextSibling ? null : oNode.parentNode ; |
| 671 |
|
| 672 |
if ( oNode ) |
| 673 |
{ |
| 674 |
while ( FCKListsLib.InlineNonEmptyElements[ oNode.nodeName.toLowerCase() ] ) |
| 675 |
{ |
| 676 |
this._Range.setEndAfter( oNode ) ; |
| 677 |
|
| 678 |
if ( oNode != oNode.parentNode.lastChild ) |
| 679 |
break ; |
| 680 |
|
| 681 |
oNode = oNode.parentNode ; |
| 682 |
} |
| 683 |
} |
| 684 |
} |
| 685 |
|
| 686 |
break ; |
| 687 |
|
| 688 |
case 'block_contents' : |
| 689 |
case 'list_contents' : |
| 690 |
var boundarySet = FCKListsLib.BlockBoundaries ; |
| 691 |
if ( unit == 'list_contents' || FCKConfig.EnterMode == 'br' ) |
| 692 |
boundarySet = FCKListsLib.ListBoundaries ; |
| 693 |
|
| 694 |
if ( this.StartBlock && FCKConfig.EnterMode != 'br' && unit == 'block_contents' ) |
| 695 |
this.SetStart( this.StartBlock, 1 ) ; |
| 696 |
else |
| 697 |
{ |
| 698 |
// Get the start node for the current range. |
| 699 |
oNode = this._Range.startContainer ; |
| 700 |
|
| 701 |
// If it is an element, get the node right before of it (in source order). |
| 702 |
if ( oNode.nodeType == 1 ) |
| 703 |
{ |
| 704 |
var lastNode = oNode.childNodes[ this._Range.startOffset ] ; |
| 705 |
if ( lastNode ) |
| 706 |
oNode = FCKDomTools.GetPreviousSourceNode( lastNode, true ) ; |
| 707 |
else |
| 708 |
oNode = oNode.lastChild || oNode ; |
| 709 |
} |
| 710 |
|
| 711 |
// We must look for the left boundary, relative to the range |
| 712 |
// start, which is limited by a block element. |
| 713 |
while ( oNode |
| 714 |
&& ( oNode.nodeType != 1 |
| 715 |
|| ( oNode != this.StartBlockLimit |
| 716 |
&& !boundarySet[ oNode.nodeName.toLowerCase() ] ) ) ) |
| 717 |
{ |
| 718 |
this._Range.setStartBefore( oNode ) ; |
| 719 |
oNode = oNode.previousSibling || oNode.parentNode ; |
| 720 |
} |
| 721 |
} |
| 722 |
|
| 723 |
if ( this.EndBlock && FCKConfig.EnterMode != 'br' && unit == 'block_contents' && this.EndBlock.nodeName.toLowerCase() != 'li' ) |
| 724 |
this.SetEnd( this.EndBlock, 2 ) ; |
| 725 |
else |
| 726 |
{ |
| 727 |
oNode = this._Range.endContainer ; |
| 728 |
if ( oNode.nodeType == 1 ) |
| 729 |
oNode = oNode.childNodes[ this._Range.endOffset ] || oNode.lastChild ; |
| 730 |
|
| 731 |
// We must look for the right boundary, relative to the range |
| 732 |
// end, which is limited by a block element. |
| 733 |
while ( oNode |
| 734 |
&& ( oNode.nodeType != 1 |
| 735 |
|| ( oNode != this.StartBlockLimit |
| 736 |
&& !boundarySet[ oNode.nodeName.toLowerCase() ] ) ) ) |
| 737 |
{ |
| 738 |
this._Range.setEndAfter( oNode ) ; |
| 739 |
oNode = oNode.nextSibling || oNode.parentNode ; |
| 740 |
} |
| 741 |
|
| 742 |
// In EnterMode='br', the end <br> boundary element must |
| 743 |
// be included in the expanded range. |
| 744 |
if ( oNode && oNode.nodeName.toLowerCase() == 'br' ) |
| 745 |
this._Range.setEndAfter( oNode ) ; |
| 746 |
} |
| 747 |
|
| 748 |
this._UpdateElementInfo() ; |
| 749 |
} |
| 750 |
}, |
| 751 |
|
| 752 |
/** |
| 753 |
* Split the block element for the current range. It deletes the contents |
| 754 |
* of the range and splits the block in the collapsed position, resulting |
| 755 |
* in two sucessive blocks. The range is then positioned in the middle of |
| 756 |
* them. |
| 757 |
* |
| 758 |
* It returns and object with the following properties: |
| 759 |
* - PreviousBlock : a reference to the block element that preceeds |
| 760 |
* the range after the split. |
| 761 |
* - NextBlock : a reference to the block element that follows the |
| 762 |
* range after the split. |
| 763 |
* - WasStartOfBlock : a boolean indicating that the range was |
| 764 |
* originaly at the start of the block. |
| 765 |
* - WasEndOfBlock : a boolean indicating that the range was originaly |
| 766 |
* at the end of the block. |
| 767 |
* |
| 768 |
* If the range was originaly at the start of the block, no split will happen |
| 769 |
* and the PreviousBlock value will be null. The same is valid for the |
| 770 |
* NextBlock value if the range was at the end of the block. |
| 771 |
*/ |
| 772 |
SplitBlock : function( forceBlockTag ) |
| 773 |
{ |
| 774 |
var blockTag = forceBlockTag || FCKConfig.EnterMode ; |
| 775 |
|
| 776 |
if ( !this._Range ) |
| 777 |
this.MoveToSelection() ; |
| 778 |
|
| 779 |
// The range boundaries must be in the same "block limit" element. |
| 780 |
if ( this.StartBlockLimit == this.EndBlockLimit ) |
| 781 |
{ |
| 782 |
// Get the current blocks. |
| 783 |
var eStartBlock = this.StartBlock ; |
| 784 |
var eEndBlock = this.EndBlock ; |
| 785 |
var oElementPath = null ; |
| 786 |
|
| 787 |
if ( blockTag != 'br' ) |
| 788 |
{ |
| 789 |
if ( !eStartBlock ) |
| 790 |
{ |
| 791 |
eStartBlock = this.FixBlock( true, blockTag ) ; |
| 792 |
eEndBlock = this.EndBlock ; // FixBlock may have fixed the EndBlock too. |
| 793 |
} |
| 794 |
|
| 795 |
if ( !eEndBlock ) |
| 796 |
eEndBlock = this.FixBlock( false, blockTag ) ; |
| 797 |
} |
| 798 |
|
| 799 |
// Get the range position. |
| 800 |
var bIsStartOfBlock = ( eStartBlock != null && this.CheckStartOfBlock() ) ; |
| 801 |
var bIsEndOfBlock = ( eEndBlock != null && this.CheckEndOfBlock() ) ; |
| 802 |
|
| 803 |
// Delete the current contents. |
| 804 |
if ( !this.CheckIsEmpty() ) |
| 805 |
this.DeleteContents() ; |
| 806 |
|
| 807 |
if ( eStartBlock && eEndBlock && eStartBlock == eEndBlock ) |
| 808 |
{ |
| 809 |
if ( bIsEndOfBlock ) |
| 810 |
{ |
| 811 |
oElementPath = new FCKElementPath( this.StartContainer ) ; |
| 812 |
this.MoveToPosition( eEndBlock, 4 ) ; |
| 813 |
eEndBlock = null ; |
| 814 |
} |
| 815 |
else if ( bIsStartOfBlock ) |
| 816 |
{ |
| 817 |
oElementPath = new FCKElementPath( this.StartContainer ) ; |
| 818 |
this.MoveToPosition( eStartBlock, 3 ) ; |
| 819 |
eStartBlock = null ; |
| 820 |
} |
| 821 |
else |
| 822 |
{ |
| 823 |
// Extract the contents of the block from the selection point to the end of its contents. |
| 824 |
this.SetEnd( eStartBlock, 2 ) ; |
| 825 |
var eDocFrag = this.ExtractContents() ; |
| 826 |
|
| 827 |
// Duplicate the block element after it. |
| 828 |
eEndBlock = eStartBlock.cloneNode( false ) ; |
| 829 |
eEndBlock.removeAttribute( 'id', false ) ; |
| 830 |
|
| 831 |
// Place the extracted contents in the duplicated block. |
| 832 |
eDocFrag.AppendTo( eEndBlock ) ; |
| 833 |
|
| 834 |
FCKDomTools.InsertAfterNode( eStartBlock, eEndBlock ) ; |
| 835 |
|
| 836 |
this.MoveToPosition( eStartBlock, 4 ) ; |
| 837 |
|
| 838 |
// In Gecko, the last child node must be a bogus <br>. |
| 839 |
// Note: bogus <br> added under <ul> or <ol> would cause lists to be incorrectly rendered. |
| 840 |
if ( FCKBrowserInfo.IsGecko && |
| 841 |
! eStartBlock.nodeName.IEquals( ['ul', 'ol'] ) ) |
| 842 |
FCKTools.AppendBogusBr( eStartBlock ) ; |
| 843 |
} |
| 844 |
} |
| 845 |
|
| 846 |
return { |
| 847 |
PreviousBlock : eStartBlock, |
| 848 |
NextBlock : eEndBlock, |
| 849 |
WasStartOfBlock : bIsStartOfBlock, |
| 850 |
WasEndOfBlock : bIsEndOfBlock, |
| 851 |
ElementPath : oElementPath |
| 852 |
} ; |
| 853 |
} |
| 854 |
|
| 855 |
return null ; |
| 856 |
}, |
| 857 |
|
| 858 |
// Transform a block without a block tag in a valid block (orphan text in the body or td, usually). |
| 859 |
FixBlock : function( isStart, blockTag ) |
| 860 |
{ |
| 861 |
// Bookmark the range so we can restore it later. |
| 862 |
var oBookmark = this.CreateBookmark() ; |
| 863 |
|
| 864 |
// Collapse the range to the requested ending boundary. |
| 865 |
this.Collapse( isStart ) ; |
| 866 |
|
| 867 |
// Expands it to the block contents. |
| 868 |
this.Expand( 'block_contents' ) ; |
| 869 |
|
| 870 |
// Create the fixed block. |
| 871 |
var oFixedBlock = this.Window.document.createElement( blockTag ) ; |
| 872 |
|
| 873 |
// Move the contents of the temporary range to the fixed block. |
| 874 |
this.ExtractContents().AppendTo( oFixedBlock ) ; |
| 875 |
FCKDomTools.TrimNode( oFixedBlock ) ; |
| 876 |
|
| 877 |
// If the fixed block is empty (not counting bookmark nodes) |
| 878 |
// Add a <br /> inside to expand it. |
| 879 |
if ( FCKDomTools.CheckIsEmptyElement(oFixedBlock, function( element ) { return element.getAttribute('_fck_bookmark') != 'true' ; } ) |
| 880 |
&& FCKBrowserInfo.IsGeckoLike ) |
| 881 |
FCKTools.AppendBogusBr( oFixedBlock ) ; |
| 882 |
|
| 883 |
// Insert the fixed block into the DOM. |
| 884 |
this.InsertNode( oFixedBlock ) ; |
| 885 |
|
| 886 |
// Move the range back to the bookmarked place. |
| 887 |
this.MoveToBookmark( oBookmark ) ; |
| 888 |
|
| 889 |
return oFixedBlock ; |
| 890 |
}, |
| 891 |
|
| 892 |
Release : function( preserveWindow ) |
| 893 |
{ |
| 894 |
if ( !preserveWindow ) |
| 895 |
this.Window = null ; |
| 896 |
|
| 897 |
this.StartNode = null ; |
| 898 |
this.StartContainer = null ; |
| 899 |
this.StartBlock = null ; |
| 900 |
this.StartBlockLimit = null ; |
| 901 |
this.EndNode = null ; |
| 902 |
this.EndContainer = null ; |
| 903 |
this.EndBlock = null ; |
| 904 |
this.EndBlockLimit = null ; |
| 905 |
this._Range = null ; |
| 906 |
this._Cache = null ; |
| 907 |
}, |
| 908 |
|
| 909 |
CheckHasRange : function() |
| 910 |
{ |
| 911 |
return !!this._Range ; |
| 912 |
}, |
| 913 |
|
| 914 |
GetTouchedStartNode : function() |
| 915 |
{ |
| 916 |
var range = this._Range ; |
| 917 |
var container = range.startContainer ; |
| 918 |
|
| 919 |
if ( range.collapsed || container.nodeType != 1 ) |
| 920 |
return container ; |
| 921 |
|
| 922 |
return container.childNodes[ range.startOffset ] || container ; |
| 923 |
}, |
| 924 |
|
| 925 |
GetTouchedEndNode : function() |
| 926 |
{ |
| 927 |
var range = this._Range ; |
| 928 |
var container = range.endContainer ; |
| 929 |
|
| 930 |
if ( range.collapsed || container.nodeType != 1 ) |
| 931 |
return container ; |
| 932 |
|
| 933 |
return container.childNodes[ range.endOffset - 1 ] || container ; |
| 934 |
} |
| 935 |
} ; |
| 936 |
|
