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fckstyle.js
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arturo
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 r0 /*
* FCKeditor - The text editor for Internet - http://www.fckeditor.net
* Copyright (C) 2003-2008 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 ==
*
* FCKStyle Class: contains a style definition, and all methods to work with
* the style in a document.
*/
/**
* @param {Object} styleDesc A "style descriptor" object, containing the raw
* style definition in the following format:
* '<style name>' : {
* Element : '<element name>',
* Attributes : {
* '<att name>' : '<att value>',
* ...
* },
* Styles : {
* '<style name>' : '<style value>',
* ...
* },
* Overrides : '<element name>'|{
* Element : '<element name>',
* Attributes : {
* '<att name>' : '<att value>'|/<att regex>/
* },
* Styles : {
* '<style name>' : '<style value>'|/<style regex>/
* },
* }
* }
*/
var FCKStyle = function( styleDesc )
{
this.Element = ( styleDesc.Element || 'span' ).toLowerCase() ;
this._StyleDesc = styleDesc ;
}
FCKStyle.prototype =
{
/**
* Get the style type, based on its element name:
* - FCK_STYLE_BLOCK (0): Block Style
* - FCK_STYLE_INLINE (1): Inline Style
* - FCK_STYLE_OBJECT (2): Object Style
*/
GetType : function()
{
var type = this.GetType_$ ;
if ( type != undefined )
return type ;
var elementName = this.Element ;
if ( elementName == '#' || FCKListsLib.StyleBlockElements[ elementName ] )
type = FCK_STYLE_BLOCK ;
else if ( FCKListsLib.StyleObjectElements[ elementName ] )
type = FCK_STYLE_OBJECT ;
else
type = FCK_STYLE_INLINE ;
return ( this.GetType_$ = type ) ;
},
/**
* Apply the style to the current selection.
*/
ApplyToSelection : function( targetWindow )
{
// Create a range for the current selection.
var range = new FCKDomRange( targetWindow ) ;
range.MoveToSelection() ;
this.ApplyToRange( range, true ) ;
},
/**
* Apply the style to a FCKDomRange.
*/
ApplyToRange : function( range, selectIt, updateRange )
{
// ApplyToRange is not valid for FCK_STYLE_OBJECT types.
// Use ApplyToObject instead.
switch ( this.GetType() )
{
case FCK_STYLE_BLOCK :
this.ApplyToRange = this._ApplyBlockStyle ;
break ;
case FCK_STYLE_INLINE :
this.ApplyToRange = this._ApplyInlineStyle ;
break ;
default :
return ;
}
this.ApplyToRange( range, selectIt, updateRange ) ;
},
/**
* Apply the style to an object. Valid for FCK_STYLE_BLOCK types only.
*/
ApplyToObject : function( objectElement )
{
if ( !objectElement )
return ;
this.BuildElement( null, objectElement ) ;
},
/**
* Remove the style from the current selection.
*/
RemoveFromSelection : function( targetWindow )
{
// Create a range for the current selection.
var range = new FCKDomRange( targetWindow ) ;
range.MoveToSelection() ;
this.RemoveFromRange( range, true ) ;
},
/**
* Remove the style from a FCKDomRange. Block type styles will have no
* effect.
*/
RemoveFromRange : function( range, selectIt, updateRange )
{
var bookmark ;
// Create the attribute list to be used later for element comparisons.
var styleAttribs = this._GetAttribsForComparison() ;
var styleOverrides = this._GetOverridesForComparison() ;
// If collapsed, we are removing all conflicting styles from the range
// parent tree.
if ( range.CheckIsCollapsed() )
{
// Bookmark the range so we can re-select it after processing.
var bookmark = range.CreateBookmark( true ) ;
// Let's start from the bookmark <span> parent.
var bookmarkStart = range.GetBookmarkNode( bookmark, true ) ;
var path = new FCKElementPath( bookmarkStart.parentNode ) ;
// While looping through the path, we'll be saving references to
// parent elements if the range is in one of their boundaries. In
// this way, we are able to create a copy of those elements when
// removing a style if the range is in a boundary limit (see #1270).
var boundaryElements = [] ;
// Check if the range is in the boundary limits of an element
// (related to #1270).
var isBoundaryRight = !FCKDomTools.GetNextSibling( bookmarkStart ) ;
var isBoundary = isBoundaryRight || !FCKDomTools.GetPreviousSibling( bookmarkStart ) ;
// This is the last element to be removed in the boundary situation
// described at #1270.
var lastBoundaryElement ;
var boundaryLimitIndex = -1 ;
for ( var i = 0 ; i < path.Elements.length ; i++ )
{
var pathElement = path.Elements[i] ;
if ( this.CheckElementRemovable( pathElement ) )
{
if ( isBoundary
&& !FCKDomTools.CheckIsEmptyElement( pathElement,
function( el )
{
return ( el != bookmarkStart ) ;
} )
)
{
lastBoundaryElement = pathElement ;
// We'll be continuously including elements in the
// boundaryElements array, but only those added before
// setting lastBoundaryElement must be used later, so
// let's mark the current index here.
boundaryLimitIndex = boundaryElements.length - 1 ;
}
else
{
var pathElementName = pathElement.nodeName.toLowerCase() ;
if ( pathElementName == this.Element )
{
// Remove any attribute that conflict with this style, no
// matter their values.
for ( var att in styleAttribs )
{
if ( FCKDomTools.HasAttribute( pathElement, att ) )
{
switch ( att )
{
case 'style' :
this._RemoveStylesFromElement( pathElement ) ;
break ;
case 'class' :
// The 'class' element value must match (#1318).
if ( FCKDomTools.GetAttributeValue( pathElement, att ) != this.GetFinalAttributeValue( att ) )
continue ;
/*jsl:fallthru*/
default :
FCKDomTools.RemoveAttribute( pathElement, att ) ;
}
}
}
}
// Remove overrides defined to the same element name.
this._RemoveOverrides( pathElement, styleOverrides[ pathElementName ] ) ;
// Remove the element if no more attributes are available and it's an inline style element
if ( this.GetType() == FCK_STYLE_INLINE)
this._RemoveNoAttribElement( pathElement ) ;
}
}
else if ( isBoundary )
boundaryElements.push( pathElement ) ;
// Check if we are still in a boundary (at the same side).
isBoundary = isBoundary && ( ( isBoundaryRight && !FCKDomTools.GetNextSibling( pathElement ) ) || ( !isBoundaryRight && !FCKDomTools.GetPreviousSibling( pathElement ) ) ) ;
// If we are in an element that is not anymore a boundary, or
// we are at the last element, let's move things outside the
// boundary (if available).
if ( lastBoundaryElement && ( !isBoundary || ( i == path.Elements.length - 1 ) ) )
{
// Remove the bookmark node from the DOM.
var currentElement = FCKDomTools.RemoveNode( bookmarkStart ) ;
// Build the collapsed group of elements that are not
// removed by this style, but share the boundary.
// (see comment 1 and 2 at #1270)
for ( var j = 0 ; j <= boundaryLimitIndex ; j++ )
{
var newElement = FCKDomTools.CloneElement( boundaryElements[j] ) ;
newElement.appendChild( currentElement ) ;
currentElement = newElement ;
}
// Re-insert the bookmark node (and the collapsed elements)
// in the DOM, in the new position next to the styled element.
if ( isBoundaryRight )
FCKDomTools.InsertAfterNode( lastBoundaryElement, currentElement ) ;
else
lastBoundaryElement.parentNode.insertBefore( currentElement, lastBoundaryElement ) ;
isBoundary = false ;
lastBoundaryElement = null ;
}
}
// Re-select the original range.
if ( selectIt )
range.SelectBookmark( bookmark ) ;
if ( updateRange )
range.MoveToBookmark( bookmark ) ;
return ;
}
// Expand the range, if inside inline element boundaries.
range.Expand( 'inline_elements' ) ;
// Bookmark the range so we can re-select it after processing.
bookmark = range.CreateBookmark( true ) ;
// The style will be applied within the bookmark boundaries.
var startNode = range.GetBookmarkNode( bookmark, true ) ;
var endNode = range.GetBookmarkNode( bookmark, false ) ;
range.Release( true ) ;
// We need to check the selection boundaries (bookmark spans) to break
// the code in a way that we can properly remove partially selected nodes.
// For example, removing a <b> style from
// <b>This is [some text</b> to show <b>the] problem</b>
// ... where [ and ] represent the selection, must result:
// <b>This is </b>[some text to show the]<b> problem</b>
// The strategy is simple, we just break the partial nodes before the
// removal logic, having something that could be represented this way:
// <b>This is </b>[<b>some text</b> to show <b>the</b>]<b> problem</b>
// Let's start checking the start boundary.
var path = new FCKElementPath( startNode ) ;
var pathElements = path.Elements ;
var pathElement ;
for ( var i = 1 ; i < pathElements.length ; i++ )
{
pathElement = pathElements[i] ;
if ( pathElement == path.Block || pathElement == path.BlockLimit )
break ;
// If this element can be removed (even partially).
if ( this.CheckElementRemovable( pathElement ) )
FCKDomTools.BreakParent( startNode, pathElement, range ) ;
}
// Now the end boundary.
path = new FCKElementPath( endNode ) ;
pathElements = path.Elements ;
for ( var i = 1 ; i < pathElements.length ; i++ )
{
pathElement = pathElements[i] ;
if ( pathElement == path.Block || pathElement == path.BlockLimit )
break ;
elementName = pathElement.nodeName.toLowerCase() ;
// If this element can be removed (even partially).
if ( this.CheckElementRemovable( pathElement ) )
FCKDomTools.BreakParent( endNode, pathElement, range ) ;
}
// Navigate through all nodes between the bookmarks.
var currentNode = FCKDomTools.GetNextSourceNode( startNode, true ) ;
while ( currentNode )
{
// Cache the next node to be processed. Do it now, because
// currentNode may be removed.
var nextNode = FCKDomTools.GetNextSourceNode( currentNode ) ;
// Remove elements nodes that match with this style rules.
if ( currentNode.nodeType == 1 )
{
var elementName = currentNode.nodeName.toLowerCase() ;
var mayRemove = ( elementName == this.Element ) ;
if ( mayRemove )
{
// Remove any attribute that conflict with this style, no matter
// their values.
for ( var att in styleAttribs )
{
if ( FCKDomTools.HasAttribute( currentNode, att ) )
{
switch ( att )
{
case 'style' :
this._RemoveStylesFromElement( currentNode ) ;
break ;
case 'class' :
// The 'class' element value must match (#1318).
if ( FCKDomTools.GetAttributeValue( currentNode, att ) != this.GetFinalAttributeValue( att ) )
continue ;
/*jsl:fallthru*/
default :
FCKDomTools.RemoveAttribute( currentNode, att ) ;
}
}
}
}
else
mayRemove = !!styleOverrides[ elementName ] ;
if ( mayRemove )
{
// Remove overrides defined to the same element name.
this._RemoveOverrides( currentNode, styleOverrides[ elementName ] ) ;
// Remove the element if no more attributes are available.
this._RemoveNoAttribElement( currentNode ) ;
}
}
// If we have reached the end of the selection, stop looping.
if ( nextNode == endNode )
break ;
currentNode = nextNode ;
}
this._FixBookmarkStart( startNode ) ;
// Re-select the original range.
if ( selectIt )
range.SelectBookmark( bookmark ) ;
if ( updateRange )
range.MoveToBookmark( bookmark ) ;
},
/**
* Checks if an element, or any of its attributes, is removable by the
* current style definition.
*/
CheckElementRemovable : function( element, fullMatch )
{
if ( !element )
return false ;
var elementName = element.nodeName.toLowerCase() ;
// If the element name is the same as the style name.
if ( elementName == this.Element )
{
// If no attributes are defined in the element.
if ( !fullMatch && !FCKDomTools.HasAttributes( element ) )
return true ;
// If any attribute conflicts with the style attributes.
var attribs = this._GetAttribsForComparison() ;
var allMatched = ( attribs._length == 0 ) ;
for ( var att in attribs )
{
if ( att == '_length' )
continue ;
if ( this._CompareAttributeValues( att, FCKDomTools.GetAttributeValue( element, att ), ( this.GetFinalAttributeValue( att ) || '' ) ) )
{
allMatched = true ;
if ( !fullMatch )
break ;
}
else
{
allMatched = false ;
if ( fullMatch )
return false ;
}
}
if ( allMatched )
return true ;
}
// Check if the element can be somehow overriden.
var override = this._GetOverridesForComparison()[ elementName ] ;
if ( override )
{
// If no attributes have been defined, remove the element.
if ( !( attribs = override.Attributes ) ) // Only one "="
return true ;
for ( var i = 0 ; i < attribs.length ; i++ )
{
var attName = attribs[i][0] ;
if ( FCKDomTools.HasAttribute( element, attName ) )
{
var attValue = attribs[i][1] ;
// Remove the attribute if:
// - The override definition value is null ;
// - The override definition valie is a string that
// matches the attribute value exactly.
// - The override definition value is a regex that
// has matches in the attribute value.
if ( attValue == null ||
( typeof attValue == 'string' && FCKDomTools.GetAttributeValue( element, attName ) == attValue ) ||
attValue.test( FCKDomTools.GetAttributeValue( element, attName ) ) )
return true ;
}
}
}
return false ;
},
/**
* Get the style state for an element path. Returns "true" if the element
* is active in the path.
*/
CheckActive : function( elementPath )
{
switch ( this.GetType() )
{
case FCK_STYLE_BLOCK :
return this.CheckElementRemovable( elementPath.Block || elementPath.BlockLimit, true ) ;
case FCK_STYLE_INLINE :
var elements = elementPath.Elements ;
for ( var i = 0 ; i < elements.length ; i++ )
{
var element = elements[i] ;
if ( element == elementPath.Block || element == elementPath.BlockLimit )
continue ;
if ( this.CheckElementRemovable( element, true ) )
return true ;
}
}
return false ;
},
/**
* Removes an inline style from inside an element tree. The element node
* itself is not checked or removed, only the child tree inside of it.
*/
RemoveFromElement : function( element )
{
var attribs = this._GetAttribsForComparison() ;
var overrides = this._GetOverridesForComparison() ;
// Get all elements with the same name.
var innerElements = element.getElementsByTagName( this.Element ) ;
for ( var i = innerElements.length - 1 ; i >= 0 ; i-- )
{
var innerElement = innerElements[i] ;
// Remove any attribute that conflict with this style, no matter
// their values.
for ( var att in attribs )
{
if ( FCKDomTools.HasAttribute( innerElement, att ) )
{
switch ( att )
{
case 'style' :
this._RemoveStylesFromElement( innerElement ) ;
break ;
case 'class' :
// The 'class' element value must match (#1318).
if ( FCKDomTools.GetAttributeValue( innerElement, att ) != this.GetFinalAttributeValue( att ) )
continue ;
/*jsl:fallthru*/
default :
FCKDomTools.RemoveAttribute( innerElement, att ) ;
}
}
}
// Remove overrides defined to the same element name.
this._RemoveOverrides( innerElement, overrides[ this.Element ] ) ;
// Remove the element if no more attributes are available.
this._RemoveNoAttribElement( innerElement ) ;
}
// Now remove any other element with different name that is
// defined to be overriden.
for ( var overrideElement in overrides )
{
if ( overrideElement != this.Element )
{
// Get all elements.
innerElements = element.getElementsByTagName( overrideElement ) ;
for ( var i = innerElements.length - 1 ; i >= 0 ; i-- )
{
var innerElement = innerElements[i] ;
this._RemoveOverrides( innerElement, overrides[ overrideElement ] ) ;
this._RemoveNoAttribElement( innerElement ) ;
}
}
}
},
_RemoveStylesFromElement : function( element )
{
var elementStyle = element.style.cssText ;
var pattern = this.GetFinalStyleValue() ;
if ( elementStyle.length > 0 && pattern.length == 0 )
return ;
pattern = '(^|;)\\s*(' +
pattern.replace( /\s*([^ ]+):.*?(;|$)/g, '$1|' ).replace( /\|$/, '' ) +
'):[^;]+' ;
var regex = new RegExp( pattern, 'gi' ) ;
elementStyle = elementStyle.replace( regex, '' ).Trim() ;
if ( elementStyle.length == 0 || elementStyle == ';' )
FCKDomTools.RemoveAttribute( element, 'style' ) ;
else
element.style.cssText = elementStyle.replace( regex, '' ) ;
},
/**
* Remove all attributes that are defined to be overriden,
*/
_RemoveOverrides : function( element, override )
{
var attributes = override && override.Attributes ;
if ( attributes )
{
for ( var i = 0 ; i < attributes.length ; i++ )
{
var attName = attributes[i][0] ;
if ( FCKDomTools.HasAttribute( element, attName ) )
{
var attValue = attributes[i][1] ;
// Remove the attribute if:
// - The override definition value is null ;
// - The override definition valie is a string that
// matches the attribute value exactly.
// - The override definition value is a regex that
// has matches in the attribute value.
if ( attValue == null ||
( attValue.test && attValue.test( FCKDomTools.GetAttributeValue( element, attName ) ) ) ||
( typeof attValue == 'string' && FCKDomTools.GetAttributeValue( element, attName ) == attValue ) )
FCKDomTools.RemoveAttribute( element, attName ) ;
}
}
}
},
/**
* If the element has no more attributes, remove it.
*/
_RemoveNoAttribElement : function( element )
{
// If no more attributes remained in the element, remove it,
// leaving its children.
if ( !FCKDomTools.HasAttributes( element ) )
{
// Removing elements may open points where merging is possible,
// so let's cache the first and last nodes for later checking.
var firstChild = element.firstChild ;
var lastChild = element.lastChild ;
FCKDomTools.RemoveNode( element, true ) ;
// Check the cached nodes for merging.
this._MergeSiblings( firstChild ) ;
if ( firstChild != lastChild )
this._MergeSiblings( lastChild ) ;
}
},
/**
* Creates a DOM element for this style object.
*/
BuildElement : function( targetDoc, element )
{
// Create the element.
var el = element || targetDoc.createElement( this.Element ) ;
// Assign all defined attributes.
var attribs = this._StyleDesc.Attributes ;
var attValue ;
if ( attribs )
{
for ( var att in attribs )
{
attValue = this.GetFinalAttributeValue( att ) ;
if ( att.toLowerCase() == 'class' )
el.className = attValue ;
else
el.setAttribute( att, attValue ) ;
}
}
// Assign the style attribute.
if ( this._GetStyleText().length > 0 )
el.style.cssText = this.GetFinalStyleValue() ;
return el ;
},
_CompareAttributeValues : function( attName, valueA, valueB )
{
if ( attName == 'style' && valueA && valueB )
{
valueA = valueA.replace( /;$/, '' ).toLowerCase() ;
valueB = valueB.replace( /;$/, '' ).toLowerCase() ;
}
// Return true if they match or if valueA is null and valueB is an empty string
return ( valueA == valueB || ( ( valueA === null || valueA === '' ) && ( valueB === null || valueB === '' ) ) )
},
GetFinalAttributeValue : function( attName )
{
var attValue = this._StyleDesc.Attributes ;
var attValue = attValue ? attValue[ attName ] : null ;
if ( !attValue && attName == 'style' )
return this.GetFinalStyleValue() ;
if ( attValue && this._Variables )
// Using custom Replace() to guarantee the correct scope.
attValue = attValue.Replace( FCKRegexLib.StyleVariableAttName, this._GetVariableReplace, this ) ;
return attValue ;
},
GetFinalStyleValue : function()
{
var attValue = this._GetStyleText() ;
if ( attValue.length > 0 && this._Variables )
{
// Using custom Replace() to guarantee the correct scope.
attValue = attValue.Replace( FCKRegexLib.StyleVariableAttName, this._GetVariableReplace, this ) ;
attValue = FCKTools.NormalizeCssText( attValue ) ;
}
return attValue ;
},
_GetVariableReplace : function()
{
// The second group in the regex is the variable name.
return this._Variables[ arguments[2] ] || arguments[0] ;
},
/**
* Set the value of a variable attribute or style, to be used when
* appliying the style.
*/
SetVariable : function( name, value )
{
var variables = this._Variables ;
if ( !variables )
variables = this._Variables = {} ;
this._Variables[ name ] = value ;
},
/**
* Converting from a PRE block to a non-PRE block in formatting operations.
*/
_FromPre : function( doc, block, newBlock )
{
var innerHTML = block.innerHTML ;
// Trim the first and last linebreaks immediately after and before <pre>, </pre>,
// if they exist.
// This is done because the linebreaks are not rendered.
innerHTML = innerHTML.replace( /(\r\n|\r)/g, '\n' ) ;
innerHTML = innerHTML.replace( /^[ \t]*\n/, '' ) ;
innerHTML = innerHTML.replace( /\n$/, '' ) ;
// 1. Convert spaces or tabs at the beginning or at the end to &nbsp;
innerHTML = innerHTML.replace( /^[ \t]+|[ \t]+$/g, function( match, offset, s )
{
if ( match.length == 1 ) // one space, preserve it
return '&nbsp;' ;
else if ( offset == 0 ) // beginning of block
return new Array( match.length ).join( '&nbsp;' ) + ' ' ;
else // end of block
return ' ' + new Array( match.length ).join( '&nbsp;' ) ;
} ) ;
// 2. Convert \n to <BR>.
// 3. Convert contiguous (i.e. non-singular) spaces or tabs to &nbsp;
var htmlIterator = new FCKHtmlIterator( innerHTML ) ;
var results = [] ;
htmlIterator.Each( function( isTag, value )
{
if ( !isTag )
{
value = value.replace( /\n/g, '<br>' ) ;
value = value.replace( /[ \t]{2,}/g,
function ( match )
{
return new Array( match.length ).join( '&nbsp;' ) + ' ' ;
} ) ;
}
results.push( value ) ;
} ) ;
newBlock.innerHTML = results.join( '' ) ;
return newBlock ;
},
/**
* Converting from a non-PRE block to a PRE block in formatting operations.
*/
_ToPre : function( doc, block, newBlock )
{
// Handle converting from a regular block to a <pre> block.
var innerHTML = block.innerHTML.Trim() ;
// 1. Delete ANSI whitespaces immediately before and after <BR> because
// they are not visible.
// 2. Mark down any <BR /> nodes here so they can be turned into \n in
// the next step and avoid being compressed.
innerHTML = innerHTML.replace( /[ \t\r\n]*(<br[^>]*>)[ \t\r\n]*/gi, '<br />' ) ;
// 3. Compress other ANSI whitespaces since they're only visible as one
// single space previously.
// 4. Convert &nbsp; to spaces since &nbsp; is no longer needed in <PRE>.
// 5. Convert any <BR /> to \n. This must not be done earlier because
// the \n would then get compressed.
var htmlIterator = new FCKHtmlIterator( innerHTML ) ;
var results = [] ;
htmlIterator.Each( function( isTag, value )
{
if ( !isTag )
value = value.replace( /([ \t\n\r]+|&nbsp;)/g, ' ' ) ;
else if ( isTag && value == '<br />' )
value = '\n' ;
results.push( value ) ;
} ) ;
// Assigning innerHTML to <PRE> in IE causes all linebreaks to be
// reduced to spaces.
// Assigning outerHTML to <PRE> in IE doesn't work if the <PRE> isn't
// contained in another node since the node reference is changed after
// outerHTML assignment.
// So, we need some hacks to workaround IE bugs here.
if ( FCKBrowserInfo.IsIE )
{
var temp = doc.createElement( 'div' ) ;
temp.appendChild( newBlock ) ;
newBlock.outerHTML = '<pre>\n' + results.join( '' ) + '</pre>' ;
newBlock = temp.removeChild( temp.firstChild ) ;
}
else
newBlock.innerHTML = results.join( '' ) ;
return newBlock ;
},
/**
* Merge a <pre> block with a previous <pre> block, if available.
*/
_CheckAndMergePre : function( previousBlock, preBlock )
{
// Check if the previous block and the current block are next
// to each other.
if ( previousBlock != FCKDomTools.GetPreviousSourceElement( preBlock, true ) )
return ;
// Merge the previous <pre> block contents into the current <pre>
// block.
//
// Another thing to be careful here is that currentBlock might contain
// a '\n' at the beginning, and previousBlock might contain a '\n'
// towards the end. These new lines are not normally displayed but they
// become visible after merging.
var innerHTML = previousBlock.innerHTML.replace( /\n$/, '' ) + '\n\n' +
preBlock.innerHTML.replace( /^\n/, '' ) ;
// Buggy IE normalizes innerHTML from <pre>, breaking whitespaces.
if ( FCKBrowserInfo.IsIE )
preBlock.outerHTML = '<pre>' + innerHTML + '</pre>' ;
else
preBlock.innerHTML = innerHTML ;
// Remove the previous <pre> block.
//
// The preBlock must not be moved or deleted from the DOM tree. This
// guarantees the FCKDomRangeIterator in _ApplyBlockStyle would not
// get lost at the next iteration.
FCKDomTools.RemoveNode( previousBlock ) ;
},
_CheckAndSplitPre : function( newBlock )
{
var lastNewBlock ;
var cursor = newBlock.firstChild ;
// We are not splitting <br><br> at the beginning of the block, so
// we'll start from the second child.
cursor = cursor && cursor.nextSibling ;
while ( cursor )
{
var next = cursor.nextSibling ;
// If we have two <BR>s, and they're not at the beginning or the end,
// then we'll split up the contents following them into another block.
// Stop processing if we are at the last child couple.
if ( next && next.nextSibling && cursor.nodeName.IEquals( 'br' ) && next.nodeName.IEquals( 'br' ) )
{
// Remove the first <br>.
FCKDomTools.RemoveNode( cursor ) ;
// Move to the node after the second <br>.
cursor = next.nextSibling ;
// Remove the second <br>.
FCKDomTools.RemoveNode( next ) ;
// Create the block that will hold the child nodes from now on.
lastNewBlock = FCKDomTools.InsertAfterNode( lastNewBlock || newBlock, FCKDomTools.CloneElement( newBlock ) ) ;
continue ;
}
// If we split it, then start moving the nodes to the new block.
if ( lastNewBlock )
{
cursor = cursor.previousSibling ;
FCKDomTools.MoveNode(cursor.nextSibling, lastNewBlock ) ;
}
cursor = cursor.nextSibling ;
}
},
/**
* Apply an inline style to a FCKDomRange.
*
* TODO
* - Implement the "#" style handling.
* - Properly handle block containers like <div> and <blockquote>.
*/
_ApplyBlockStyle : function( range, selectIt, updateRange )
{
// Bookmark the range so we can re-select it after processing.
var bookmark ;
if ( selectIt )
bookmark = range.CreateBookmark() ;
var iterator = new FCKDomRangeIterator( range ) ;
iterator.EnforceRealBlocks = true ;
var block ;
var doc = range.Window.document ;
var previousPreBlock ;
while( ( block = iterator.GetNextParagraph() ) ) // Only one =
{
// Create the new node right before the current one.
var newBlock = this.BuildElement( doc ) ;
// Check if we are changing from/to <pre>.
var newBlockIsPre = newBlock.nodeName.IEquals( 'pre' ) ;
var blockIsPre = block.nodeName.IEquals( 'pre' ) ;
var toPre = newBlockIsPre && !blockIsPre ;
var fromPre = !newBlockIsPre && blockIsPre ;
// Move everything from the current node to the new one.
if ( toPre )
newBlock = this._ToPre( doc, block, newBlock ) ;
else if ( fromPre )
newBlock = this._FromPre( doc, block, newBlock ) ;
else // Convering from a regular block to another regular block.
FCKDomTools.MoveChildren( block, newBlock ) ;
// Replace the current block.
block.parentNode.insertBefore( newBlock, block ) ;
FCKDomTools.RemoveNode( block ) ;
// Complete other tasks after inserting the node in the DOM.
if ( newBlockIsPre )
{
if ( previousPreBlock )
this._CheckAndMergePre( previousPreBlock, newBlock ) ; // Merge successive <pre> blocks.
previousPreBlock = newBlock ;
}
else if ( fromPre )
this._CheckAndSplitPre( newBlock ) ; // Split <br><br> in successive <pre>s.
}
// Re-select the original range.
if ( selectIt )
range.SelectBookmark( bookmark ) ;
if ( updateRange )
range.MoveToBookmark( bookmark ) ;
},
/**
* Apply an inline style to a FCKDomRange.
*
* TODO
* - Merge elements, when applying styles to similar elements that enclose
* the entire selection, outputing:
* <span style="color: #ff0000; background-color: #ffffff">XYZ</span>
* instead of:
* <span style="color: #ff0000;"><span style="background-color: #ffffff">XYZ</span></span>
*/
_ApplyInlineStyle : function( range, selectIt, updateRange )
{
var doc = range.Window.document ;
if ( range.CheckIsCollapsed() )
{
// Create the element to be inserted in the DOM.
var collapsedElement = this.BuildElement( doc ) ;
range.InsertNode( collapsedElement ) ;
range.MoveToPosition( collapsedElement, 2 ) ;
range.Select() ;
return ;
}
// The general idea here is navigating through all nodes inside the
// current selection, working on distinct range blocks, defined by the
// DTD compatibility between the style element and the nodes inside the
// ranges.
//
// For example, suppose we have the following selection (where [ and ]
// are the boundaries), and we apply a <b> style there:
//
// <p>Here we [have <b>some</b> text.<p>
// <p>And some here] here.</p>
//
// Two different ranges will be detected:
//
// "have <b>some</b> text."
// "And some here"
//
// Both ranges will be extracted, moved to a <b> element, and
// re-inserted, resulting in the following output:
//
// <p>Here we [<b>have some text.</b><p>
// <p><b>And some here</b>] here.</p>
//
// Note that the <b> element at <b>some</b> is also removed because it
// is not needed anymore.
var elementName = this.Element ;
// Get the DTD definition for the element. Defaults to "span".
var elementDTD = FCK.DTD[ elementName ] || FCK.DTD.span ;
// Create the attribute list to be used later for element comparisons.
var styleAttribs = this._GetAttribsForComparison() ;
var styleNode ;
// Expand the range, if inside inline element boundaries.
range.Expand( 'inline_elements' ) ;
// Bookmark the range so we can re-select it after processing.
var bookmark = range.CreateBookmark( true ) ;
// The style will be applied within the bookmark boundaries.
var startNode = range.GetBookmarkNode( bookmark, true ) ;
var endNode = range.GetBookmarkNode( bookmark, false ) ;
// We'll be reusing the range to apply the styles. So, release it here
// to indicate that it has not been initialized.
range.Release( true ) ;
// Let's start the nodes lookup from the node right after the bookmark
// span.
var currentNode = FCKDomTools.GetNextSourceNode( startNode, true ) ;
while ( currentNode )
{
var applyStyle = false ;
var nodeType = currentNode.nodeType ;
var nodeName = nodeType == 1 ? currentNode.nodeName.toLowerCase() : null ;
// Check if the current node can be a child of the style element.
if ( !nodeName || elementDTD[ nodeName ] )
{
// Check if the style element can be a child of the current
// node parent or if the element is not defined in the DTD.
if ( ( FCK.DTD[ currentNode.parentNode.nodeName.toLowerCase() ] || FCK.DTD.span )[ elementName ] || !FCK.DTD[ elementName ] )
{
// This node will be part of our range, so if it has not
// been started, place its start right before the node.
if ( !range.CheckHasRange() )
range.SetStart( currentNode, 3 ) ;
// Non element nodes, or empty elements can be added
// completely to the range.
if ( nodeType != 1 || currentNode.childNodes.length == 0 )
{
var includedNode = currentNode ;
var parentNode = includedNode.parentNode ;
// This node is about to be included completelly, but,
// if this is the last node in its parent, we must also
// check if the parent itself can be added completelly
// to the range.
while ( includedNode == parentNode.lastChild
&& elementDTD[ parentNode.nodeName.toLowerCase() ] )
{
includedNode = parentNode ;
}
range.SetEnd( includedNode, 4 ) ;
// If the included node is the last node in its parent
// and its parent can't be inside the style node, apply
// the style immediately.
if ( includedNode == includedNode.parentNode.lastChild && !elementDTD[ includedNode.parentNode.nodeName.toLowerCase() ] )
applyStyle = true ;
}
else
{
// Element nodes will not be added directly. We need to
// check their children because the selection could end
// inside the node, so let's place the range end right
// before the element.
range.SetEnd( currentNode, 3 ) ;
}
}
else
applyStyle = true ;
}
else
applyStyle = true ;
// Get the next node to be processed.
currentNode = FCKDomTools.GetNextSourceNode( currentNode ) ;
// If we have reached the end of the selection, just apply the
// style ot the range, and stop looping.
if ( currentNode == endNode )
{
currentNode = null ;
applyStyle = true ;
}
// Apply the style if we have something to which apply it.
if ( applyStyle && range.CheckHasRange() && !range.CheckIsCollapsed() )
{
// Build the style element, based on the style object definition.
styleNode = this.BuildElement( doc ) ;
// Move the contents of the range to the style element.
range.ExtractContents().AppendTo( styleNode ) ;
// If it is not empty.
if ( styleNode.innerHTML.RTrim().length > 0 )
{
// Insert it in the range position (it is collapsed after
// ExtractContents.
range.InsertNode( styleNode ) ;
// Here we do some cleanup, removing all duplicated
// elements from the style element.
this.RemoveFromElement( styleNode ) ;
// Let's merge our new style with its neighbors, if possible.
this._MergeSiblings( styleNode, this._GetAttribsForComparison() ) ;
// As the style system breaks text nodes constantly, let's normalize
// things for performance.
// With IE, some paragraphs get broken when calling normalize()
// repeatedly. Also, for IE, we must normalize body, not documentElement.
// IE is also known for having a "crash effect" with normalize().
// We should try to normalize with IE too in some way, somewhere.
if ( !FCKBrowserInfo.IsIE )
styleNode.normalize() ;
}
// Style applied, let's release the range, so it gets marked to
// re-initialization in the next loop.
range.Release( true ) ;
}
}
this._FixBookmarkStart( startNode ) ;
// Re-select the original range.
if ( selectIt )
range.SelectBookmark( bookmark ) ;
if ( updateRange )
range.MoveToBookmark( bookmark ) ;
},
_FixBookmarkStart : function( startNode )
{
// After appliying or removing an inline style, the start boundary of
// the selection must be placed inside all inline elements it is
// bordering.
var startSibling ;
while ( ( startSibling = startNode.nextSibling ) ) // Only one "=".
{
if ( startSibling.nodeType == 1
&& FCKListsLib.InlineNonEmptyElements[ startSibling.nodeName.toLowerCase() ] )
{
// If it is an empty inline element, we can safely remove it.
if ( !startSibling.firstChild )
FCKDomTools.RemoveNode( startSibling ) ;
else
FCKDomTools.MoveNode( startNode, startSibling, true ) ;
continue ;
}
// Empty text nodes can be safely removed to not disturb.
if ( startSibling.nodeType == 3 && startSibling.length == 0 )
{
FCKDomTools.RemoveNode( startSibling ) ;
continue ;
}
break ;
}
},
/**
* Merge an element with its similar siblings.
* "attribs" is and object computed with _CreateAttribsForComparison.
*/
_MergeSiblings : function( element, attribs )
{
if ( !element || element.nodeType != 1 || !FCKListsLib.InlineNonEmptyElements[ element.nodeName.toLowerCase() ] )
return ;
this._MergeNextSibling( element, attribs ) ;
this._MergePreviousSibling( element, attribs ) ;
},
/**
* Merge an element with its similar siblings after it.
* "attribs" is and object computed with _CreateAttribsForComparison.
*/
_MergeNextSibling : function( element, attribs )
{
// Check the next sibling.
var sibling = element.nextSibling ;
// Check if the next sibling is a bookmark element. In this case, jump it.
var hasBookmark = ( sibling && sibling.nodeType == 1 && sibling.getAttribute( '_fck_bookmark' ) ) ;
if ( hasBookmark )
sibling = sibling.nextSibling ;
if ( sibling && sibling.nodeType == 1 && sibling.nodeName == element.nodeName )
{
if ( !attribs )
attribs = this._CreateElementAttribsForComparison( element ) ;
if ( this._CheckAttributesMatch( sibling, attribs ) )
{
// Save the last child to be checked too (to merge things like <b><i></i></b><b><i></i></b>).
var innerSibling = element.lastChild ;
if ( hasBookmark )
FCKDomTools.MoveNode( element.nextSibling, element ) ;
// Move contents from the sibling.
FCKDomTools.MoveChildren( sibling, element ) ;
FCKDomTools.RemoveNode( sibling ) ;
// Now check the last inner child (see two comments above).
if ( innerSibling )
this._MergeNextSibling( innerSibling ) ;
}
}
},
/**
* Merge an element with its similar siblings before it.
* "attribs" is and object computed with _CreateAttribsForComparison.
*/
_MergePreviousSibling : function( element, attribs )
{
// Check the previous sibling.
var sibling = element.previousSibling ;
// Check if the previous sibling is a bookmark element. In this case, jump it.
var hasBookmark = ( sibling && sibling.nodeType == 1 && sibling.getAttribute( '_fck_bookmark' ) ) ;
if ( hasBookmark )
sibling = sibling.previousSibling ;
if ( sibling && sibling.nodeType == 1 && sibling.nodeName == element.nodeName )
{
if ( !attribs )
attribs = this._CreateElementAttribsForComparison( element ) ;
if ( this._CheckAttributesMatch( sibling, attribs ) )
{
// Save the first child to be checked too (to merge things like <b><i></i></b><b><i></i></b>).
var innerSibling = element.firstChild ;
if ( hasBookmark )
FCKDomTools.MoveNode( element.previousSibling, element, true ) ;
// Move contents to the sibling.
FCKDomTools.MoveChildren( sibling, element, true ) ;
FCKDomTools.RemoveNode( sibling ) ;
// Now check the first inner child (see two comments above).
if ( innerSibling )
this._MergePreviousSibling( innerSibling ) ;
}
}
},
/**
* Build the cssText based on the styles definition.
*/
_GetStyleText : function()
{
var stylesDef = this._StyleDesc.Styles ;
// Builds the StyleText.
var stylesText = ( this._StyleDesc.Attributes ? this._StyleDesc.Attributes['style'] || '' : '' ) ;
if ( stylesText.length > 0 )
stylesText += ';' ;
for ( var style in stylesDef )
stylesText += style + ':' + stylesDef[style] + ';' ;
// Browsers make some changes to the style when applying them. So, here
// we normalize it to the browser format. We'll not do that if there
// are variables inside the style.
if ( stylesText.length > 0 && !( /#\(/.test( stylesText ) ) )
{
stylesText = FCKTools.NormalizeCssText( stylesText ) ;
}
return (this._GetStyleText = function() { return stylesText ; })() ;
},
/**
* Get the the collection used to compare the attributes defined in this
* style with attributes in an element. All information in it is lowercased.
*/
_GetAttribsForComparison : function()
{
// If we have already computed it, just return it.
var attribs = this._GetAttribsForComparison_$ ;
if ( attribs )
return attribs ;
attribs = new Object() ;
// Loop through all defined attributes.
var styleAttribs = this._StyleDesc.Attributes ;
if ( styleAttribs )
{
for ( var styleAtt in styleAttribs )
{
attribs[ styleAtt.toLowerCase() ] = styleAttribs[ styleAtt ].toLowerCase() ;
}
}
// Includes the style definitions.
if ( this._GetStyleText().length > 0 )
{
attribs['style'] = this._GetStyleText().toLowerCase() ;
}
// Appends the "length" information to the object.
FCKTools.AppendLengthProperty( attribs, '_length' ) ;
// Return it, saving it to the next request.
return ( this._GetAttribsForComparison_$ = attribs ) ;
},
/**
* Get the the collection used to compare the elements and attributes,
* defined in this style overrides, with other element. All information in
* it is lowercased.
*/
_GetOverridesForComparison : function()
{
// If we have already computed it, just return it.
var overrides = this._GetOverridesForComparison_$ ;
if ( overrides )
return overrides ;
overrides = new Object() ;
var overridesDesc = this._StyleDesc.Overrides ;
if ( overridesDesc )
{
// The override description can be a string, object or array.
// Internally, well handle arrays only, so transform it if needed.
if ( !FCKTools.IsArray( overridesDesc ) )
overridesDesc = [ overridesDesc ] ;
// Loop through all override definitions.
for ( var i = 0 ; i < overridesDesc.length ; i++ )
{
var override = overridesDesc[i] ;
var elementName ;
var overrideEl ;
var attrs ;
// If can be a string with the element name.
if ( typeof override == 'string' )
elementName = override.toLowerCase() ;
// Or an object.
else
{
elementName = override.Element ? override.Element.toLowerCase() : this.Element ;
attrs = override.Attributes ;
}
// We can have more than one override definition for the same
// element name, so we attempt to simply append information to
// it if it already exists.
overrideEl = overrides[ elementName ] || ( overrides[ elementName ] = {} ) ;
if ( attrs )
{
// The returning attributes list is an array, because we
// could have different override definitions for the same
// attribute name.
var overrideAttrs = ( overrideEl.Attributes = overrideEl.Attributes || new Array() ) ;
for ( var attName in attrs )
{
// Each item in the attributes array is also an array,
// where [0] is the attribute name and [1] is the
// override value.
overrideAttrs.push( [ attName.toLowerCase(), attrs[ attName ] ] ) ;
}
}
}
}
return ( this._GetOverridesForComparison_$ = overrides ) ;
},
/*
* Create and object containing all attributes specified in an element,
* added by a "_length" property. All values are lowercased.
*/
_CreateElementAttribsForComparison : function( element )
{
var attribs = new Object() ;
var attribsCount = 0 ;
for ( var i = 0 ; i < element.attributes.length ; i++ )
{
var att = element.attributes[i] ;
if ( att.specified )
{
attribs[ att.nodeName.toLowerCase() ] = FCKDomTools.GetAttributeValue( element, att ).toLowerCase() ;
attribsCount++ ;
}
}
attribs._length = attribsCount ;
return attribs ;
},
/**
* Checks is the element attributes have a perfect match with the style
* attributes.
*/
_CheckAttributesMatch : function( element, styleAttribs )
{
// Loop through all specified attributes. The same number of
// attributes must be found and their values must match to
// declare them as equal.
var elementAttrbs = element.attributes ;
var matchCount = 0 ;
for ( var i = 0 ; i < elementAttrbs.length ; i++ )
{
var att = elementAttrbs[i] ;
if ( att.specified )
{
var attName = att.nodeName.toLowerCase() ;
var styleAtt = styleAttribs[ attName ] ;
// The attribute is not defined in the style.
if ( !styleAtt )
break ;
// The values are different.
if ( styleAtt != FCKDomTools.GetAttributeValue( element, att ).toLowerCase() )
break ;
matchCount++ ;
}
}
return ( matchCount == styleAttribs._length ) ;
}
} ;