/*
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* FCKeditor - The text editor for Internet - http://www.fckeditor.net
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* Copyright (C) 2003-2009 Frederico Caldeira Knabben
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*
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* == BEGIN LICENSE ==
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*
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* Licensed under the terms of any of the following licenses at your
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* choice:
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*
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* - GNU General Public License Version 2 or later (the "GPL")
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* http://www.gnu.org/licenses/gpl.html
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*
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* - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
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* http://www.gnu.org/licenses/lgpl.html
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*
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* - Mozilla Public License Version 1.1 or later (the "MPL")
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* http://www.mozilla.org/MPL/MPL-1.1.html
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*
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* == END LICENSE ==
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*
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* FCKStyle Class: contains a style definition, and all methods to work with
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* the style in a document.
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*/
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/**
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* @param {Object} styleDesc A "style descriptor" object, containing the raw
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* style definition in the following format:
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* '<style name>' : {
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* Element : '<element name>',
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* Attributes : {
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* '<att name>' : '<att value>',
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* ...
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* },
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* Styles : {
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* '<style name>' : '<style value>',
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* ...
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* },
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* Overrides : '<element name>'|{
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* Element : '<element name>',
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* Attributes : {
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* '<att name>' : '<att value>'|/<att regex>/
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* },
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* Styles : {
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* '<style name>' : '<style value>'|/<style regex>/
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* },
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* }
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* }
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*/
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var FCKStyle = function( styleDesc )
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{
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this.Element = ( styleDesc.Element || 'span' ).toLowerCase() ;
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this._StyleDesc = styleDesc ;
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}
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FCKStyle.prototype =
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{
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/**
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* Get the style type, based on its element name:
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* - FCK_STYLE_BLOCK (0): Block Style
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* - FCK_STYLE_INLINE (1): Inline Style
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* - FCK_STYLE_OBJECT (2): Object Style
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*/
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GetType : function()
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{
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var type = this.GetType_$ ;
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if ( type != undefined )
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return type ;
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var elementName = this.Element ;
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if ( elementName == '#' || FCKListsLib.StyleBlockElements[ elementName ] )
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type = FCK_STYLE_BLOCK ;
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else if ( FCKListsLib.StyleObjectElements[ elementName ] )
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type = FCK_STYLE_OBJECT ;
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else
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type = FCK_STYLE_INLINE ;
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return ( this.GetType_$ = type ) ;
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},
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/**
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* Apply the style to the current selection.
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*/
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ApplyToSelection : function( targetWindow )
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{
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// Create a range for the current selection.
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var range = new FCKDomRange( targetWindow ) ;
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range.MoveToSelection() ;
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this.ApplyToRange( range, true ) ;
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},
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/**
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* Apply the style to a FCKDomRange.
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*/
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ApplyToRange : function( range, selectIt, updateRange )
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{
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// ApplyToRange is not valid for FCK_STYLE_OBJECT types.
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// Use ApplyToObject instead.
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switch ( this.GetType() )
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{
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case FCK_STYLE_BLOCK :
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this.ApplyToRange = this._ApplyBlockStyle ;
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break ;
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case FCK_STYLE_INLINE :
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this.ApplyToRange = this._ApplyInlineStyle ;
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break ;
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default :
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return ;
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}
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this.ApplyToRange( range, selectIt, updateRange ) ;
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},
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/**
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* Apply the style to an object. Valid for FCK_STYLE_BLOCK types only.
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*/
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ApplyToObject : function( objectElement )
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{
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if ( !objectElement )
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return ;
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this.BuildElement( null, objectElement ) ;
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},
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/**
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* Remove the style from the current selection.
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*/
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RemoveFromSelection : function( targetWindow )
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{
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// Create a range for the current selection.
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var range = new FCKDomRange( targetWindow ) ;
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range.MoveToSelection() ;
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this.RemoveFromRange( range, true ) ;
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},
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/**
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* Remove the style from a FCKDomRange. Block type styles will have no
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* effect.
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*/
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RemoveFromRange : function( range, selectIt, updateRange )
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{
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var bookmark ;
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// Create the attribute list to be used later for element comparisons.
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var styleAttribs = this._GetAttribsForComparison() ;
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var styleOverrides = this._GetOverridesForComparison() ;
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// If collapsed, we are removing all conflicting styles from the range
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// parent tree.
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if ( range.CheckIsCollapsed() )
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{
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// Bookmark the range so we can re-select it after processing.
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var bookmark = range.CreateBookmark( true ) ;
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// Let's start from the bookmark <span> parent.
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var bookmarkStart = range.GetBookmarkNode( bookmark, true ) ;
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var path = new FCKElementPath( bookmarkStart.parentNode ) ;
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// While looping through the path, we'll be saving references to
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// parent elements if the range is in one of their boundaries. In
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// this way, we are able to create a copy of those elements when
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// removing a style if the range is in a boundary limit (see #1270).
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var boundaryElements = [] ;
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// Check if the range is in the boundary limits of an element
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// (related to #1270).
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var isBoundaryRight = !FCKDomTools.GetNextSibling( bookmarkStart ) ;
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var isBoundary = isBoundaryRight || !FCKDomTools.GetPreviousSibling( bookmarkStart ) ;
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// This is the last element to be removed in the boundary situation
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// described at #1270.
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var lastBoundaryElement ;
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var boundaryLimitIndex = -1 ;
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for ( var i = 0 ; i < path.Elements.length ; i++ )
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{
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var pathElement = path.Elements[i] ;
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if ( this.CheckElementRemovable( pathElement ) )
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{
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if ( isBoundary
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&& !FCKDomTools.CheckIsEmptyElement( pathElement,
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function( el )
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{
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return ( el != bookmarkStart ) ;
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} )
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)
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{
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lastBoundaryElement = pathElement ;
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// We'll be continuously including elements in the
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// boundaryElements array, but only those added before
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// setting lastBoundaryElement must be used later, so
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// let's mark the current index here.
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boundaryLimitIndex = boundaryElements.length - 1 ;
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}
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else
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{
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var pathElementName = pathElement.nodeName.toLowerCase() ;
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if ( pathElementName == this.Element )
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{
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// Remove any attribute that conflict with this style, no
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// matter their values.
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for ( var att in styleAttribs )
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{
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if ( FCKDomTools.HasAttribute( pathElement, att ) )
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{
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switch ( att )
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{
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case 'style' :
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this._RemoveStylesFromElement( pathElement ) ;
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break ;
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case 'class' :
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// The 'class' element value must match (#1318).
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if ( FCKDomTools.GetAttributeValue( pathElement, att ) != this.GetFinalAttributeValue( att ) )
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continue ;
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/*jsl:fallthru*/
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default :
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FCKDomTools.RemoveAttribute( pathElement, att ) ;
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}
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}
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}
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}
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// Remove overrides defined to the same element name.
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this._RemoveOverrides( pathElement, styleOverrides[ pathElementName ] ) ;
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// Remove the element if no more attributes are available and it's an inline style element
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if ( this.GetType() == FCK_STYLE_INLINE)
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this._RemoveNoAttribElement( pathElement ) ;
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}
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}
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else if ( isBoundary )
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boundaryElements.push( pathElement ) ;
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// Check if we are still in a boundary (at the same side).
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isBoundary = isBoundary && ( ( isBoundaryRight && !FCKDomTools.GetNextSibling( pathElement ) ) || ( !isBoundaryRight && !FCKDomTools.GetPreviousSibling( pathElement ) ) ) ;
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// If we are in an element that is not anymore a boundary, or
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// we are at the last element, let's move things outside the
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// boundary (if available).
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if ( lastBoundaryElement && ( !isBoundary || ( i == path.Elements.length - 1 ) ) )
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{
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// Remove the bookmark node from the DOM.
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var currentElement = FCKDomTools.RemoveNode( bookmarkStart ) ;
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// Build the collapsed group of elements that are not
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// removed by this style, but share the boundary.
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// (see comment 1 and 2 at #1270)
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for ( var j = 0 ; j <= boundaryLimitIndex ; j++ )
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{
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var newElement = FCKDomTools.CloneElement( boundaryElements[j] ) ;
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newElement.appendChild( currentElement ) ;
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currentElement = newElement ;
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}
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// Re-insert the bookmark node (and the collapsed elements)
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// in the DOM, in the new position next to the styled element.
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if ( isBoundaryRight )
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FCKDomTools.InsertAfterNode( lastBoundaryElement, currentElement ) ;
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else
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lastBoundaryElement.parentNode.insertBefore( currentElement, lastBoundaryElement ) ;
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isBoundary = false ;
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lastBoundaryElement = null ;
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}
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}
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// Re-select the original range.
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if ( selectIt )
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range.SelectBookmark( bookmark ) ;
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if ( updateRange )
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range.MoveToBookmark( bookmark ) ;
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return ;
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}
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// Expand the range, if inside inline element boundaries.
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range.Expand( 'inline_elements' ) ;
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// Bookmark the range so we can re-select it after processing.
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bookmark = range.CreateBookmark( true ) ;
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// The style will be applied within the bookmark boundaries.
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var startNode = range.GetBookmarkNode( bookmark, true ) ;
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var endNode = range.GetBookmarkNode( bookmark, false ) ;
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range.Release( true ) ;
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// We need to check the selection boundaries (bookmark spans) to break
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// the code in a way that we can properly remove partially selected nodes.
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// For example, removing a <b> style from
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// <b>This is [some text</b> to show <b>the] problem</b>
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// ... where [ and ] represent the selection, must result:
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// <b>This is </b>[some text to show the]<b> problem</b>
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// The strategy is simple, we just break the partial nodes before the
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// removal logic, having something that could be represented this way:
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// <b>This is </b>[<b>some text</b> to show <b>the</b>]<b> problem</b>
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// Let's start checking the start boundary.
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var path = new FCKElementPath( startNode ) ;
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var pathElements = path.Elements ;
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var pathElement ;
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for ( var i = 1 ; i < pathElements.length ; i++ )
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{
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pathElement = pathElements[i] ;
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if ( pathElement == path.Block || pathElement == path.BlockLimit )
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break ;
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// If this element can be removed (even partially).
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if ( this.CheckElementRemovable( pathElement ) )
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FCKDomTools.BreakParent( startNode, pathElement, range ) ;
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}
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// Now the end boundary.
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path = new FCKElementPath( endNode ) ;
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pathElements = path.Elements ;
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for ( var i = 1 ; i < pathElements.length ; i++ )
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{
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pathElement = pathElements[i] ;
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if ( pathElement == path.Block || pathElement == path.BlockLimit )
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break ;
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elementName = pathElement.nodeName.toLowerCase() ;
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// If this element can be removed (even partially).
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if ( this.CheckElementRemovable( pathElement ) )
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FCKDomTools.BreakParent( endNode, pathElement, range ) ;
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}
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// Navigate through all nodes between the bookmarks.
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var currentNode = FCKDomTools.GetNextSourceNode( startNode, true ) ;
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while ( currentNode )
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{
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// Cache the next node to be processed. Do it now, because
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// currentNode may be removed.
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var nextNode = FCKDomTools.GetNextSourceNode( currentNode ) ;
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// Remove elements nodes that match with this style rules.
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if ( currentNode.nodeType == 1 )
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{
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var elementName = currentNode.nodeName.toLowerCase() ;
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var mayRemove = ( elementName == this.Element ) ;
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if ( mayRemove )
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{
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// Remove any attribute that conflict with this style, no matter
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// their values.
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for ( var att in styleAttribs )
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{
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if ( FCKDomTools.HasAttribute( currentNode, att ) )
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{
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switch ( att )
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{
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case 'style' :
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this._RemoveStylesFromElement( currentNode ) ;
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break ;
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case 'class' :
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// The 'class' element value must match (#1318).
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if ( FCKDomTools.GetAttributeValue( currentNode, att ) != this.GetFinalAttributeValue( att ) )
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continue ;
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/*jsl:fallthru*/
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default :
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FCKDomTools.RemoveAttribute( currentNode, att ) ;
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}
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}
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}
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}
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else
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mayRemove = !!styleOverrides[ elementName ] ;
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if ( mayRemove )
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{
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// Remove overrides defined to the same element name.
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this._RemoveOverrides( currentNode, styleOverrides[ elementName ] ) ;
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// Remove the element if no more attributes are available.
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this._RemoveNoAttribElement( currentNode ) ;
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}
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}
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// If we have reached the end of the selection, stop looping.
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if ( nextNode == endNode )
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break ;
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currentNode = nextNode ;
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}
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this._FixBookmarkStart( startNode ) ;
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// Re-select the original range.
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if ( selectIt )
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range.SelectBookmark( bookmark ) ;
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if ( updateRange )
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range.MoveToBookmark( bookmark ) ;
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},
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/**
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* Checks if an element, or any of its attributes, is removable by the
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* current style definition.
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*/
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CheckElementRemovable : function( element, fullMatch )
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{
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if ( !element )
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return false ;
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var elementName = element.nodeName.toLowerCase() ;
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// If the element name is the same as the style name.
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if ( elementName == this.Element )
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{
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// If no attributes are defined in the element.
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if ( !fullMatch && !FCKDomTools.HasAttributes( element ) )
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return true ;
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// If any attribute conflicts with the style attributes.
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var attribs = this._GetAttribsForComparison() ;
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var allMatched = ( attribs._length == 0 ) ;
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for ( var att in attribs )
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{
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if ( att == '_length' )
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continue ;
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if ( this._CompareAttributeValues( att, FCKDomTools.GetAttributeValue( element, att ), ( this.GetFinalAttributeValue( att ) || '' ) ) )
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{
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allMatched = true ;
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if ( !fullMatch )
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break ;
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}
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else
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{
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allMatched = false ;
|
if ( fullMatch )
|
return false ;
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}
|
}
|
if ( allMatched )
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return true ;
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}
|
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// Check if the element can be somehow overriden.
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var override = this._GetOverridesForComparison()[ elementName ] ;
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if ( override )
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{
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// If no attributes have been defined, remove the element.
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if ( !( attribs = override.Attributes ) ) // Only one "="
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return true ;
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for ( var i = 0 ; i < attribs.length ; i++ )
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{
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var attName = attribs[i][0] ;
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if ( FCKDomTools.HasAttribute( element, attName ) )
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{
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var attValue = attribs[i][1] ;
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// Remove the attribute if:
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// - The override definition value is null ;
|
// - The override definition valie is a string that
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// matches the attribute value exactly.
|
// - The override definition value is a regex that
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// has matches in the attribute value.
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if ( attValue == null ||
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( typeof attValue == 'string' && FCKDomTools.GetAttributeValue( element, attName ) == attValue ) ||
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attValue.test( FCKDomTools.GetAttributeValue( element, attName ) ) )
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return true ;
|
}
|
}
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}
|
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return false ;
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},
|
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/**
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* Get the style state for an element path. Returns "true" if the element
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* is active in the path.
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*/
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CheckActive : function( elementPath )
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{
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switch ( this.GetType() )
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{
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case FCK_STYLE_BLOCK :
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return this.CheckElementRemovable( elementPath.Block || elementPath.BlockLimit, true ) ;
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case FCK_STYLE_INLINE :
|
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var elements = elementPath.Elements ;
|
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for ( var i = 0 ; i < elements.length ; i++ )
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{
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var element = elements[i] ;
|
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if ( element == elementPath.Block || element == elementPath.BlockLimit )
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continue ;
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if ( this.CheckElementRemovable( element, true ) )
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return true ;
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}
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}
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return false ;
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},
|
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/**
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* Removes an inline style from inside an element tree. The element node
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* itself is not checked or removed, only the child tree inside of it.
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*/
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RemoveFromElement : function( element )
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{
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var attribs = this._GetAttribsForComparison() ;
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var overrides = this._GetOverridesForComparison() ;
|
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// Get all elements with the same name.
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var innerElements = element.getElementsByTagName( this.Element ) ;
|
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for ( var i = innerElements.length - 1 ; i >= 0 ; i-- )
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{
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var innerElement = innerElements[i] ;
|
|
// Remove any attribute that conflict with this style, no matter
|
// their values.
|
for ( var att in attribs )
|
{
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if ( FCKDomTools.HasAttribute( innerElement, att ) )
|
{
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switch ( att )
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{
|
case 'style' :
|
this._RemoveStylesFromElement( innerElement ) ;
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break ;
|
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case 'class' :
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// The 'class' element value must match (#1318).
|
if ( FCKDomTools.GetAttributeValue( innerElement, att ) != this.GetFinalAttributeValue( att ) )
|
continue ;
|
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/*jsl:fallthru*/
|
|
default :
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FCKDomTools.RemoveAttribute( innerElement, att ) ;
|
}
|
}
|
}
|
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// Remove overrides defined to the same element name.
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this._RemoveOverrides( innerElement, overrides[ this.Element ] ) ;
|
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// Remove the element if no more attributes are available.
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this._RemoveNoAttribElement( innerElement ) ;
|
}
|
|
// Now remove any other element with different name that is
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// defined to be overriden.
|
for ( var overrideElement in overrides )
|
{
|
if ( overrideElement != this.Element )
|
{
|
// Get all elements.
|
innerElements = element.getElementsByTagName( overrideElement ) ;
|
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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$/, '' ) ;
|
|
// 1. Convert spaces or tabs at the beginning or at the end to
|
innerHTML = innerHTML.replace( /^[ \t]+|[ \t]+$/g, function( match, offset, s )
|
{
|
if ( match.length == 1 ) // one space, preserve it
|
return ' ' ;
|
else if ( offset == 0 ) // beginning of block
|
return new Array( match.length ).join( ' ' ) + ' ' ;
|
else // end of block
|
return ' ' + new Array( match.length ).join( ' ' ) ;
|
} ) ;
|
|
// 2. Convert \n to <BR>.
|
// 3. Convert contiguous (i.e. non-singular) spaces or tabs to
|
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( ' ' ) + ' ' ;
|
} ) ;
|
}
|
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 to spaces since 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]+| )/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 ) ;
|
}
|
} ;
|
