/*
* FCKeditor - The text editor for Internet - http://www.fckeditor.net
* Copyright (C) 2003-2009 Frederico Caldeira Knabben
*
* == BEGIN LICENSE ==
*
* Licensed under the terms of any of the following licenses at your
* choice:
*
* - GNU General Public License Version 2 or later (the "GPL")
* http://www.gnu.org/licenses/gpl.html
*
* - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
* http://www.gnu.org/licenses/lgpl.html
*
* - Mozilla Public License Version 1.1 or later (the "MPL")
* http://www.mozilla.org/MPL/MPL-1.1.html
*
* == END LICENSE ==
*
* Class for working with a selection range, much like the W3C DOM Range, but
* it is not intended to be an implementation of the W3C interface.
*/
var FCKDomRange = function( sourceWindow )
{
this.Window = sourceWindow ;
this._Cache = {} ;
}
FCKDomRange.prototype =
{
_UpdateElementInfo : function()
{
var innerRange = this._Range ;
if ( !innerRange )
this.Release( true ) ;
else
{
// For text nodes, the node itself is the StartNode.
var eStart = innerRange.startContainer ;
var oElementPath = new FCKElementPath( eStart ) ;
this.StartNode = eStart.nodeType == 3 ? eStart : eStart.childNodes[ innerRange.startOffset ] ;
this.StartContainer = eStart ;
this.StartBlock = oElementPath.Block ;
this.StartBlockLimit = oElementPath.BlockLimit ;
if ( innerRange.collapsed )
{
this.EndNode = this.StartNode ;
this.EndContainer = this.StartContainer ;
this.EndBlock = this.StartBlock ;
this.EndBlockLimit = this.StartBlockLimit ;
}
else
{
var eEnd = innerRange.endContainer ;
if ( eStart != eEnd )
oElementPath = new FCKElementPath( eEnd ) ;
// The innerRange.endContainer[ innerRange.endOffset ] is not
// usually part of the range, but the marker for the range end. So,
// let's get the previous available node as the real end.
var eEndNode = eEnd ;
if ( innerRange.endOffset == 0 )
{
while ( eEndNode && !eEndNode.previousSibling )
eEndNode = eEndNode.parentNode ;
if ( eEndNode )
eEndNode = eEndNode.previousSibling ;
}
else if ( eEndNode.nodeType == 1 )
eEndNode = eEndNode.childNodes[ innerRange.endOffset - 1 ] ;
this.EndNode = eEndNode ;
this.EndContainer = eEnd ;
this.EndBlock = oElementPath.Block ;
this.EndBlockLimit = oElementPath.BlockLimit ;
}
}
this._Cache = {} ;
},
CreateRange : function()
{
return new FCKW3CRange( this.Window.document ) ;
},
DeleteContents : function()
{
if ( this._Range )
{
this._Range.deleteContents() ;
this._UpdateElementInfo() ;
}
},
ExtractContents : function()
{
if ( this._Range )
{
var docFrag = this._Range.extractContents() ;
this._UpdateElementInfo() ;
return docFrag ;
}
return null ;
},
CheckIsCollapsed : function()
{
if ( this._Range )
return this._Range.collapsed ;
return false ;
},
Collapse : function( toStart )
{
if ( this._Range )
this._Range.collapse( toStart ) ;
this._UpdateElementInfo() ;
},
Clone : function()
{
var oClone = FCKTools.CloneObject( this ) ;
if ( this._Range )
oClone._Range = this._Range.cloneRange() ;
return oClone ;
},
MoveToNodeContents : function( targetNode )
{
if ( !this._Range )
this._Range = this.CreateRange() ;
this._Range.selectNodeContents( targetNode ) ;
this._UpdateElementInfo() ;
},
MoveToElementStart : function( targetElement )
{
this.SetStart(targetElement,1) ;
this.SetEnd(targetElement,1) ;
},
// Moves to the first editing point inside a element. For example, in a
// element tree like " Text
", the start editing point
// is "^ Text
" (inside ).
MoveToElementEditStart : function( targetElement )
{
var editableElement ;
while ( targetElement && targetElement.nodeType == 1 )
{
if ( FCKDomTools.CheckIsEditable( targetElement ) )
editableElement = targetElement ;
else if ( editableElement )
break ; // If we already found an editable element, stop the loop.
targetElement = targetElement.firstChild ;
}
if ( editableElement )
this.MoveToElementStart( editableElement ) ;
},
InsertNode : function( node )
{
if ( this._Range )
this._Range.insertNode( node ) ;
},
CheckIsEmpty : function()
{
if ( this.CheckIsCollapsed() )
return true ;
// Inserts the contents of the range in a div tag.
var eToolDiv = this.Window.document.createElement( 'div' ) ;
this._Range.cloneContents().AppendTo( eToolDiv ) ;
FCKDomTools.TrimNode( eToolDiv ) ;
return ( eToolDiv.innerHTML.length == 0 ) ;
},
/**
* Checks if the start boundary of the current range is "visually" (like a
* selection caret) at the beginning of the block. It means that some
* things could be brefore the range, like spaces or empty inline elements,
* but it would still be considered at the beginning of the block.
*/
CheckStartOfBlock : function()
{
var cache = this._Cache ;
var bIsStartOfBlock = cache.IsStartOfBlock ;
if ( bIsStartOfBlock != undefined )
return bIsStartOfBlock ;
// Take the block reference.
var block = this.StartBlock || this.StartBlockLimit ;
var container = this._Range.startContainer ;
var offset = this._Range.startOffset ;
var currentNode ;
if ( offset > 0 )
{
// First, check the start container. If it is a text node, get the
// substring of the node value before the range offset.
if ( container.nodeType == 3 )
{
var textValue = container.nodeValue.substr( 0, offset ).Trim() ;
// If we have some text left in the container, we are not at
// the end for the block.
if ( textValue.length != 0 )
return cache.IsStartOfBlock = false ;
}
else
currentNode = container.childNodes[ offset - 1 ] ;
}
// We'll not have a currentNode if the container was a text node, or
// the offset is zero.
if ( !currentNode )
currentNode = FCKDomTools.GetPreviousSourceNode( container, true, null, block ) ;
while ( currentNode )
{
switch ( currentNode.nodeType )
{
case 1 :
// It's not an inline element.
if ( !FCKListsLib.InlineChildReqElements[ currentNode.nodeName.toLowerCase() ] )
return cache.IsStartOfBlock = false ;
break ;
case 3 :
// It's a text node with real text.
if ( currentNode.nodeValue.Trim().length > 0 )
return cache.IsStartOfBlock = false ;
}
currentNode = FCKDomTools.GetPreviousSourceNode( currentNode, false, null, block ) ;
}
return cache.IsStartOfBlock = true ;
},
/**
* Checks if the end boundary of the current range is "visually" (like a
* selection caret) at the end of the block. It means that some things
* could be after the range, like spaces, empty inline elements, or a
* single
, but it would still be considered at the end of the block.
*/
CheckEndOfBlock : function( refreshSelection )
{
var isEndOfBlock = this._Cache.IsEndOfBlock ;
if ( isEndOfBlock != undefined )
return isEndOfBlock ;
// Take the block reference.
var block = this.EndBlock || this.EndBlockLimit ;
var container = this._Range.endContainer ;
var offset = this._Range.endOffset ;
var currentNode ;
// First, check the end container. If it is a text node, get the
// substring of the node value after the range offset.
if ( container.nodeType == 3 )
{
var textValue = container.nodeValue ;
if ( offset < textValue.length )
{
textValue = textValue.substr( offset ) ;
// If we have some text left in the container, we are not at
// the end for the block.
if ( textValue.Trim().length != 0 )
return this._Cache.IsEndOfBlock = false ;
}
}
else
currentNode = container.childNodes[ offset ] ;
// We'll not have a currentNode if the container was a text node, of
// the offset is out the container children limits (after it probably).
if ( !currentNode )
currentNode = FCKDomTools.GetNextSourceNode( container, true, null, block ) ;
var hadBr = false ;
while ( currentNode )
{
switch ( currentNode.nodeType )
{
case 1 :
var nodeName = currentNode.nodeName.toLowerCase() ;
// It's an inline element.
if ( FCKListsLib.InlineChildReqElements[ nodeName ] )
break ;
// It is the first
found.
if ( nodeName == 'br' && !hadBr )
{
hadBr = true ;
break ;
}
return this._Cache.IsEndOfBlock = false ;
case 3 :
// It's a text node with real text.
if ( currentNode.nodeValue.Trim().length > 0 )
return this._Cache.IsEndOfBlock = false ;
}
currentNode = FCKDomTools.GetNextSourceNode( currentNode, false, null, block ) ;
}
if ( refreshSelection )
this.Select() ;
return this._Cache.IsEndOfBlock = true ;
},
// This is an "intrusive" way to create a bookmark. It includes tags
// in the range boundaries. The advantage of it is that it is possible to
// handle DOM mutations when moving back to the bookmark.
// Attention: the inclusion of nodes in the DOM is a design choice and
// should not be changed as there are other points in the code that may be
// using those nodes to perform operations. See GetBookmarkNode.
// For performance, includeNodes=true if intended to SelectBookmark.
CreateBookmark : function( includeNodes )
{
// Create the bookmark info (random IDs).
var oBookmark =
{
StartId : (new Date()).valueOf() + Math.floor(Math.random()*1000) + 'S',
EndId : (new Date()).valueOf() + Math.floor(Math.random()*1000) + 'E'
} ;
var oDoc = this.Window.document ;
var eStartSpan ;
var eEndSpan ;
var oClone ;
// For collapsed ranges, add just the start marker.
if ( !this.CheckIsCollapsed() )
{
eEndSpan = oDoc.createElement( 'span' ) ;
eEndSpan.style.display = 'none' ;
eEndSpan.id = oBookmark.EndId ;
eEndSpan.setAttribute( '_fck_bookmark', true ) ;
// For IE, it must have something inside, otherwise it may be
// removed during DOM operations.
// if ( FCKBrowserInfo.IsIE )
eEndSpan.innerHTML = ' ' ;
oClone = this.Clone() ;
oClone.Collapse( false ) ;
oClone.InsertNode( eEndSpan ) ;
}
eStartSpan = oDoc.createElement( 'span' ) ;
eStartSpan.style.display = 'none' ;
eStartSpan.id = oBookmark.StartId ;
eStartSpan.setAttribute( '_fck_bookmark', true ) ;
// For IE, it must have something inside, otherwise it may be removed
// during DOM operations.
// if ( FCKBrowserInfo.IsIE )
eStartSpan.innerHTML = ' ' ;
oClone = this.Clone() ;
oClone.Collapse( true ) ;
oClone.InsertNode( eStartSpan ) ;
if ( includeNodes )
{
oBookmark.StartNode = eStartSpan ;
oBookmark.EndNode = eEndSpan ;
}
// Update the range position.
if ( eEndSpan )
{
this.SetStart( eStartSpan, 4 ) ;
this.SetEnd( eEndSpan, 3 ) ;
}
else
this.MoveToPosition( eStartSpan, 4 ) ;
return oBookmark ;
},
// This one should be a part of a hypothetic "bookmark" object.
GetBookmarkNode : function( bookmark, start )
{
var doc = this.Window.document ;
if ( start )
return bookmark.StartNode || doc.getElementById( bookmark.StartId ) ;
else
return bookmark.EndNode || doc.getElementById( bookmark.EndId ) ;
},
MoveToBookmark : function( bookmark, preserveBookmark )
{
var eStartSpan = this.GetBookmarkNode( bookmark, true ) ;
var eEndSpan = this.GetBookmarkNode( bookmark, false ) ;
this.SetStart( eStartSpan, 3 ) ;
if ( !preserveBookmark )
FCKDomTools.RemoveNode( eStartSpan ) ;
// If collapsed, the end span will not be available.
if ( eEndSpan )
{
this.SetEnd( eEndSpan, 3 ) ;
if ( !preserveBookmark )
FCKDomTools.RemoveNode( eEndSpan ) ;
}
else
this.Collapse( true ) ;
this._UpdateElementInfo() ;
},
// Non-intrusive bookmark algorithm
CreateBookmark2 : function()
{
// If there is no range then get out of here.
// It happens on initial load in Safari #962 and if the editor it's hidden also in Firefox
if ( ! this._Range )
return { "Start" : 0, "End" : 0 } ;
// First, we record down the offset values
var bookmark =
{
"Start" : [ this._Range.startOffset ],
"End" : [ this._Range.endOffset ]
} ;
// Since we're treating the document tree as normalized, we need to backtrack the text lengths
// of previous text nodes into the offset value.
var curStart = this._Range.startContainer.previousSibling ;
var curEnd = this._Range.endContainer.previousSibling ;
// Also note that the node that we use for "address base" would change during backtracking.
var addrStart = this._Range.startContainer ;
var addrEnd = this._Range.endContainer ;
while ( curStart && curStart.nodeType == 3 && addrStart.nodeType == 3 )
{
bookmark.Start[0] += curStart.length ;
addrStart = curStart ;
curStart = curStart.previousSibling ;
}
while ( curEnd && curEnd.nodeType == 3 && addrEnd.nodeType == 3 )
{
bookmark.End[0] += curEnd.length ;
addrEnd = curEnd ;
curEnd = curEnd.previousSibling ;
}
// If the object pointed to by the startOffset and endOffset are text nodes, we need
// to backtrack and add in the text offset to the bookmark addresses.
if ( addrStart.nodeType == 1 && addrStart.childNodes[bookmark.Start[0]] && addrStart.childNodes[bookmark.Start[0]].nodeType == 3 )
{
var curNode = addrStart.childNodes[bookmark.Start[0]] ;
var offset = 0 ;
while ( curNode.previousSibling && curNode.previousSibling.nodeType == 3 )
{
curNode = curNode.previousSibling ;
offset += curNode.length ;
}
addrStart = curNode ;
bookmark.Start[0] = offset ;
}
if ( addrEnd.nodeType == 1 && addrEnd.childNodes[bookmark.End[0]] && addrEnd.childNodes[bookmark.End[0]].nodeType == 3 )
{
var curNode = addrEnd.childNodes[bookmark.End[0]] ;
var offset = 0 ;
while ( curNode.previousSibling && curNode.previousSibling.nodeType == 3 )
{
curNode = curNode.previousSibling ;
offset += curNode.length ;
}
addrEnd = curNode ;
bookmark.End[0] = offset ;
}
// Then, we record down the precise position of the container nodes
// by walking up the DOM tree and counting their childNode index
bookmark.Start = FCKDomTools.GetNodeAddress( addrStart, true ).concat( bookmark.Start ) ;
bookmark.End = FCKDomTools.GetNodeAddress( addrEnd, true ).concat( bookmark.End ) ;
return bookmark;
},
MoveToBookmark2 : function( bookmark )
{
// Reverse the childNode counting algorithm in CreateBookmark2()
var curStart = FCKDomTools.GetNodeFromAddress( this.Window.document, bookmark.Start.slice( 0, -1 ), true ) ;
var curEnd = FCKDomTools.GetNodeFromAddress( this.Window.document, bookmark.End.slice( 0, -1 ), true ) ;
// Generate the W3C Range object and update relevant data
this.Release( true ) ;
this._Range = new FCKW3CRange( this.Window.document ) ;
var startOffset = bookmark.Start[ bookmark.Start.length - 1 ] ;
var endOffset = bookmark.End[ bookmark.End.length - 1 ] ;
while ( curStart.nodeType == 3 && startOffset > curStart.length )
{
if ( ! curStart.nextSibling || curStart.nextSibling.nodeType != 3 )
break ;
startOffset -= curStart.length ;
curStart = curStart.nextSibling ;
}
while ( curEnd.nodeType == 3 && endOffset > curEnd.length )
{
if ( ! curEnd.nextSibling || curEnd.nextSibling.nodeType != 3 )
break ;
endOffset -= curEnd.length ;
curEnd = curEnd.nextSibling ;
}
this._Range.setStart( curStart, startOffset ) ;
this._Range.setEnd( curEnd, endOffset ) ;
this._UpdateElementInfo() ;
},
MoveToPosition : function( targetElement, position )
{
this.SetStart( targetElement, position ) ;
this.Collapse( true ) ;
},
/*
* Moves the position of the start boundary of the range to a specific position
* relatively to a element.
* @position:
* 1 = After Start ^contents
* 2 = Before End contents^
* 3 = Before Start ^contents
* 4 = After End contents^
*/
SetStart : function( targetElement, position, noInfoUpdate )
{
var oRange = this._Range ;
if ( !oRange )
oRange = this._Range = this.CreateRange() ;
switch( position )
{
case 1 : // After Start ^contents
oRange.setStart( targetElement, 0 ) ;
break ;
case 2 : // Before End contents^
oRange.setStart( targetElement, targetElement.childNodes.length ) ;
break ;
case 3 : // Before Start ^contents
oRange.setStartBefore( targetElement ) ;
break ;
case 4 : // After End contents^
oRange.setStartAfter( targetElement ) ;
}
if ( !noInfoUpdate )
this._UpdateElementInfo() ;
},
/*
* Moves the position of the start boundary of the range to a specific position
* relatively to a element.
* @position:
* 1 = After Start ^contents
* 2 = Before End contents^
* 3 = Before Start ^contents
* 4 = After End contents^
*/
SetEnd : function( targetElement, position, noInfoUpdate )
{
var oRange = this._Range ;
if ( !oRange )
oRange = this._Range = this.CreateRange() ;
switch( position )
{
case 1 : // After Start ^contents
oRange.setEnd( targetElement, 0 ) ;
break ;
case 2 : // Before End contents^
oRange.setEnd( targetElement, targetElement.childNodes.length ) ;
break ;
case 3 : // Before Start ^contents
oRange.setEndBefore( targetElement ) ;
break ;
case 4 : // After End contents^
oRange.setEndAfter( targetElement ) ;
}
if ( !noInfoUpdate )
this._UpdateElementInfo() ;
},
Expand : function( unit )
{
var oNode, oSibling ;
switch ( unit )
{
// Expand the range to include all inline parent elements if we are
// are in their boundary limits.
// For example (where [ ] are the range limits):
// Before => Some [Some sample text].
// After => Some [Some sample text].
case 'inline_elements' :
// Expand the start boundary.
if ( this._Range.startOffset == 0 )
{
oNode = this._Range.startContainer ;
if ( oNode.nodeType != 1 )
oNode = oNode.previousSibling ? null : oNode.parentNode ;
if ( oNode )
{
while ( FCKListsLib.InlineNonEmptyElements[ oNode.nodeName.toLowerCase() ] )
{
this._Range.setStartBefore( oNode ) ;
if ( oNode != oNode.parentNode.firstChild )
break ;
oNode = oNode.parentNode ;
}
}
}
// Expand the end boundary.
oNode = this._Range.endContainer ;
var offset = this._Range.endOffset ;
if ( ( oNode.nodeType == 3 && offset >= oNode.nodeValue.length ) || ( oNode.nodeType == 1 && offset >= oNode.childNodes.length ) || ( oNode.nodeType != 1 && oNode.nodeType != 3 ) )
{
if ( oNode.nodeType != 1 )
oNode = oNode.nextSibling ? null : oNode.parentNode ;
if ( oNode )
{
while ( FCKListsLib.InlineNonEmptyElements[ oNode.nodeName.toLowerCase() ] )
{
this._Range.setEndAfter( oNode ) ;
if ( oNode != oNode.parentNode.lastChild )
break ;
oNode = oNode.parentNode ;
}
}
}
break ;
case 'block_contents' :
case 'list_contents' :
var boundarySet = FCKListsLib.BlockBoundaries ;
if ( unit == 'list_contents' || FCKConfig.EnterMode == 'br' )
boundarySet = FCKListsLib.ListBoundaries ;
if ( this.StartBlock && FCKConfig.EnterMode != 'br' && unit == 'block_contents' )
this.SetStart( this.StartBlock, 1 ) ;
else
{
// Get the start node for the current range.
oNode = this._Range.startContainer ;
// If it is an element, get the node right before of it (in source order).
if ( oNode.nodeType == 1 )
{
var lastNode = oNode.childNodes[ this._Range.startOffset ] ;
if ( lastNode )
oNode = FCKDomTools.GetPreviousSourceNode( lastNode, true ) ;
else
oNode = oNode.lastChild || oNode ;
}
// We must look for the left boundary, relative to the range
// start, which is limited by a block element.
while ( oNode
&& ( oNode.nodeType != 1
|| ( oNode != this.StartBlockLimit
&& !boundarySet[ oNode.nodeName.toLowerCase() ] ) ) )
{
this._Range.setStartBefore( oNode ) ;
oNode = oNode.previousSibling || oNode.parentNode ;
}
}
if ( this.EndBlock && FCKConfig.EnterMode != 'br' && unit == 'block_contents' && this.EndBlock.nodeName.toLowerCase() != 'li' )
this.SetEnd( this.EndBlock, 2 ) ;
else
{
oNode = this._Range.endContainer ;
if ( oNode.nodeType == 1 )
oNode = oNode.childNodes[ this._Range.endOffset ] || oNode.lastChild ;
// We must look for the right boundary, relative to the range
// end, which is limited by a block element.
while ( oNode
&& ( oNode.nodeType != 1
|| ( oNode != this.StartBlockLimit
&& !boundarySet[ oNode.nodeName.toLowerCase() ] ) ) )
{
this._Range.setEndAfter( oNode ) ;
oNode = oNode.nextSibling || oNode.parentNode ;
}
// In EnterMode='br', the end
boundary element must
// be included in the expanded range.
if ( oNode && oNode.nodeName.toLowerCase() == 'br' )
this._Range.setEndAfter( oNode ) ;
}
this._UpdateElementInfo() ;
}
},
/**
* Split the block element for the current range. It deletes the contents
* of the range and splits the block in the collapsed position, resulting
* in two sucessive blocks. The range is then positioned in the middle of
* them.
*
* It returns and object with the following properties:
* - PreviousBlock : a reference to the block element that preceeds
* the range after the split.
* - NextBlock : a reference to the block element that follows the
* range after the split.
* - WasStartOfBlock : a boolean indicating that the range was
* originaly at the start of the block.
* - WasEndOfBlock : a boolean indicating that the range was originaly
* at the end of the block.
*
* If the range was originaly at the start of the block, no split will happen
* and the PreviousBlock value will be null. The same is valid for the
* NextBlock value if the range was at the end of the block.
*/
SplitBlock : function( forceBlockTag )
{
var blockTag = forceBlockTag || FCKConfig.EnterMode ;
if ( !this._Range )
this.MoveToSelection() ;
// The range boundaries must be in the same "block limit" element.
if ( this.StartBlockLimit == this.EndBlockLimit )
{
// Get the current blocks.
var eStartBlock = this.StartBlock ;
var eEndBlock = this.EndBlock ;
var oElementPath = null ;
if ( blockTag != 'br' )
{
if ( !eStartBlock )
{
eStartBlock = this.FixBlock( true, blockTag ) ;
eEndBlock = this.EndBlock ; // FixBlock may have fixed the EndBlock too.
}
if ( !eEndBlock )
eEndBlock = this.FixBlock( false, blockTag ) ;
}
// Get the range position.
var bIsStartOfBlock = ( eStartBlock != null && this.CheckStartOfBlock() ) ;
var bIsEndOfBlock = ( eEndBlock != null && this.CheckEndOfBlock() ) ;
// Delete the current contents.
if ( !this.CheckIsEmpty() )
this.DeleteContents() ;
if ( eStartBlock && eEndBlock && eStartBlock == eEndBlock )
{
if ( bIsEndOfBlock )
{
oElementPath = new FCKElementPath( this.StartContainer ) ;
this.MoveToPosition( eEndBlock, 4 ) ;
eEndBlock = null ;
}
else if ( bIsStartOfBlock )
{
oElementPath = new FCKElementPath( this.StartContainer ) ;
this.MoveToPosition( eStartBlock, 3 ) ;
eStartBlock = null ;
}
else
{
// Extract the contents of the block from the selection point to the end of its contents.
this.SetEnd( eStartBlock, 2 ) ;
var eDocFrag = this.ExtractContents() ;
// Duplicate the block element after it.
eEndBlock = eStartBlock.cloneNode( false ) ;
eEndBlock.removeAttribute( 'id', false ) ;
// Place the extracted contents in the duplicated block.
eDocFrag.AppendTo( eEndBlock ) ;
FCKDomTools.InsertAfterNode( eStartBlock, eEndBlock ) ;
this.MoveToPosition( eStartBlock, 4 ) ;
// In Gecko, the last child node must be a bogus
.
// Note: bogus
added under or would cause lists to be incorrectly rendered.
if ( FCKBrowserInfo.IsGecko &&
! eStartBlock.nodeName.IEquals( ['ul', 'ol'] ) )
FCKTools.AppendBogusBr( eStartBlock ) ;
}
}
return {
PreviousBlock : eStartBlock,
NextBlock : eEndBlock,
WasStartOfBlock : bIsStartOfBlock,
WasEndOfBlock : bIsEndOfBlock,
ElementPath : oElementPath
} ;
}
return null ;
},
// Transform a block without a block tag in a valid block (orphan text in the body or td, usually).
FixBlock : function( isStart, blockTag )
{
// Bookmark the range so we can restore it later.
var oBookmark = this.CreateBookmark() ;
// Collapse the range to the requested ending boundary.
this.Collapse( isStart ) ;
// Expands it to the block contents.
this.Expand( 'block_contents' ) ;
// Create the fixed block.
var oFixedBlock = this.Window.document.createElement( blockTag ) ;
// Move the contents of the temporary range to the fixed block.
this.ExtractContents().AppendTo( oFixedBlock ) ;
FCKDomTools.TrimNode( oFixedBlock ) ;
// If the fixed block is empty (not counting bookmark nodes)
// Add a
inside to expand it.
if ( FCKDomTools.CheckIsEmptyElement(oFixedBlock, function( element ) { return element.getAttribute('_fck_bookmark') != 'true' ; } )
&& FCKBrowserInfo.IsGeckoLike )
FCKTools.AppendBogusBr( oFixedBlock ) ;
// Insert the fixed block into the DOM.
this.InsertNode( oFixedBlock ) ;
// Move the range back to the bookmarked place.
this.MoveToBookmark( oBookmark ) ;
return oFixedBlock ;
},
Release : function( preserveWindow )
{
if ( !preserveWindow )
this.Window = null ;
this.StartNode = null ;
this.StartContainer = null ;
this.StartBlock = null ;
this.StartBlockLimit = null ;
this.EndNode = null ;
this.EndContainer = null ;
this.EndBlock = null ;
this.EndBlockLimit = null ;
this._Range = null ;
this._Cache = null ;
},
CheckHasRange : function()
{
return !!this._Range ;
},
GetTouchedStartNode : function()
{
var range = this._Range ;
var container = range.startContainer ;
if ( range.collapsed || container.nodeType != 1 )
return container ;
return container.childNodes[ range.startOffset ] || container ;
},
GetTouchedEndNode : function()
{
var range = this._Range ;
var container = range.endContainer ;
if ( range.collapsed || container.nodeType != 1 )
return container ;
return container.childNodes[ range.endOffset - 1 ] || container ;
}
} ;