fckstyle.js
资源名称:MEIMS.rar [点击查看]
上传用户:ah_jiwei
上传日期:2022-07-24
资源大小:54044k
文件大小:38k
源码类别:
数据库编程
开发平台:
Visual C++
- /*
- * FCKeditor - The text editor for Internet - http://www.fckeditor.net
- * Copyright (C) 2003-2007 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 )
- {
- // 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 ) ;
- },
- /**
- * 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 )
- {
- 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 ;
- 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.
- 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 ) ;
- return ;
- }
- // 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 ) ;
- 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 ;
- 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 ) ;
- },
- /**
- * 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 ) ;
- 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 ;
- 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 ( valueA == 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 ;
- },
- /**
- * Apply an inline style to a FCKDomRange.
- *
- * TODO
- * - Implement the "#" style handling.
- * - Properly handle block containers like <div> and <blockquote>.
- */
- _ApplyBlockStyle : function( range, selectIt )
- {
- // Bookmark the range so we can re-select it after processing.
- var bookmark ;
- if ( selectIt )
- bookmark = range.CreateBookmark( true ) ;
- var iterator = new FCKDomRangeIterator( range ) ;
- iterator.EnforceRealBlocks = true ;
- var block ;
- while( ( block = iterator.GetNextParagraph() ) ) // Only one =
- {
- // Create the new node right before the current one.
- var newBlock = block.parentNode.insertBefore( this.BuildElement( range.Window.document ), block ) ;
- // Move everything from the current node to the new one.
- FCKDomTools.MoveChildren( block, newBlock ) ;
- // Delete the current node.
- FCKDomTools.RemoveNode( block ) ;
- }
- // Re-select the original range.
- if ( selectIt )
- range.SelectBookmark( 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 )
- {
- 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.
- if ( ( FCK.DTD[ currentNode.parentNode.nodeName.toLowerCase() ] || FCK.DTD.span )[ 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 ) ;
- },
- _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 ) ;
- }
- } ;