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/* |
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* FCKeditor - The text editor for Internet - http://www.fckeditor.net |
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* Copyright (C) 2003-2009 Frederico Caldeira Knabben |
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* |
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* == BEGIN LICENSE == |
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* |
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* Licensed under the terms of any of the following licenses at your |
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* choice: |
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* |
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* - GNU General Public License Version 2 or later (the "GPL") |
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* http://www.gnu.org/licenses/gpl.html |
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* |
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* - GNU Lesser General Public License Version 2.1 or later (the "LGPL") |
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* http://www.gnu.org/licenses/lgpl.html |
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* |
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* - Mozilla Public License Version 1.1 or later (the "MPL") |
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* http://www.mozilla.org/MPL/MPL-1.1.html |
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* |
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* == END LICENSE == |
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* |
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* FCKIndentCommand Class: controls block indentation. |
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*/ |
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|
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var FCKIndentCommand = function( name, offset ) |
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{ |
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this.Name = name ; |
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this.Offset = offset ; |
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this.IndentCSSProperty = FCKConfig.ContentLangDirection.IEquals( 'ltr' ) ? 'marginLeft' : 'marginRight' ; |
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} |
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|
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FCKIndentCommand._InitIndentModeParameters = function() |
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{ |
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if ( FCKConfig.IndentClasses && FCKConfig.IndentClasses.length > 0 ) |
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{ |
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this._UseIndentClasses = true ; |
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this._IndentClassMap = {} ; |
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for ( var i = 0 ; i < FCKConfig.IndentClasses.length ;i++ ) |
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this._IndentClassMap[FCKConfig.IndentClasses[i]] = i + 1 ; |
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this._ClassNameRegex = new RegExp( '(?:^|\\s+)(' + FCKConfig.IndentClasses.join( '|' ) + ')(?=$|\\s)' ) ; |
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} |
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else |
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this._UseIndentClasses = false ; |
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} |
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|
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|
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FCKIndentCommand.prototype = |
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{ |
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Execute : function() |
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{ |
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// Save an undo snapshot before doing anything. |
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FCKUndo.SaveUndoStep() ; |
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|
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var range = new FCKDomRange( FCK.EditorWindow ) ; |
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range.MoveToSelection() ; |
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var bookmark = range.CreateBookmark() ; |
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|
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// Two cases to handle here: either we're in a list, or not. |
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// If we're in a list, then the indent/outdent operations would be done on the list nodes. |
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// Otherwise, apply the operation on the nearest block nodes. |
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var nearestListBlock = FCKDomTools.GetCommonParentNode( range.StartNode || range.StartContainer , |
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range.EndNode || range.EndContainer, |
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['ul', 'ol'] ) ; |
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if ( nearestListBlock ) |
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this._IndentList( range, nearestListBlock ) ; |
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else |
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this._IndentBlock( range ) ; |
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|
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range.MoveToBookmark( bookmark ) ; |
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range.Select() ; |
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|
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FCK.Focus() ; |
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FCK.Events.FireEvent( 'OnSelectionChange' ) ; |
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}, |
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|
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GetState : function() |
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{ |
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// Disabled if not WYSIWYG. |
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if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG || ! FCK.EditorWindow ) |
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return FCK_TRISTATE_DISABLED ; |
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|
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// Initialize parameters if not already initialzed. |
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if ( FCKIndentCommand._UseIndentClasses == undefined ) |
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FCKIndentCommand._InitIndentModeParameters() ; |
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|
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// If we're not in a list, and the starting block's indentation is zero, and the current |
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// command is the outdent command, then we should return FCK_TRISTATE_DISABLED. |
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var startContainer = FCKSelection.GetBoundaryParentElement( true ) ; |
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var endContainer = FCKSelection.GetBoundaryParentElement( false ) ; |
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var listNode = FCKDomTools.GetCommonParentNode( startContainer, endContainer, ['ul','ol'] ) ; |
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|
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if ( listNode ) |
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{ |
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if ( this.Name.IEquals( 'outdent' ) ) |
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return FCK_TRISTATE_OFF ; |
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var firstItem = FCKTools.GetElementAscensor( startContainer, 'li' ) ; |
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if ( !firstItem || !firstItem.previousSibling ) |
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return FCK_TRISTATE_DISABLED ; |
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return FCK_TRISTATE_OFF ; |
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} |
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if ( ! FCKIndentCommand._UseIndentClasses && this.Name.IEquals( 'indent' ) ) |
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return FCK_TRISTATE_OFF; |
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|
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var path = new FCKElementPath( startContainer ) ; |
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var firstBlock = path.Block || path.BlockLimit ; |
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if ( !firstBlock ) |
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return FCK_TRISTATE_DISABLED ; |
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|
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if ( FCKIndentCommand._UseIndentClasses ) |
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{ |
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var indentClass = firstBlock.className.match( FCKIndentCommand._ClassNameRegex ) ; |
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var indentStep = 0 ; |
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if ( indentClass != null ) |
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{ |
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indentClass = indentClass[1] ; |
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indentStep = FCKIndentCommand._IndentClassMap[indentClass] ; |
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} |
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if ( ( this.Name == 'outdent' && indentStep == 0 ) || |
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( this.Name == 'indent' && indentStep == FCKConfig.IndentClasses.length ) ) |
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return FCK_TRISTATE_DISABLED ; |
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return FCK_TRISTATE_OFF ; |
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} |
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else |
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{ |
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var indent = parseInt( firstBlock.style[this.IndentCSSProperty], 10 ) ; |
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if ( isNaN( indent ) ) |
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indent = 0 ; |
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if ( indent <= 0 ) |
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return FCK_TRISTATE_DISABLED ; |
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return FCK_TRISTATE_OFF ; |
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} |
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}, |
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|
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_IndentBlock : function( range ) |
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{ |
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var iterator = new FCKDomRangeIterator( range ) ; |
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iterator.EnforceRealBlocks = true ; |
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|
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range.Expand( 'block_contents' ) ; |
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var commonParents = FCKDomTools.GetCommonParents( range.StartContainer, range.EndContainer ) ; |
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var nearestParent = commonParents[commonParents.length - 1] ; |
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var block ; |
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|
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while ( ( block = iterator.GetNextParagraph() ) ) |
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{ |
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// We don't want to indent subtrees recursively, so only perform the indent operation |
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// if the block itself is the nearestParent, or the block's parent is the nearestParent. |
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if ( ! ( block == nearestParent || block.parentNode == nearestParent ) ) |
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continue ; |
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|
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if ( FCKIndentCommand._UseIndentClasses ) |
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{ |
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// Transform current class name to indent step index. |
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var indentClass = block.className.match( FCKIndentCommand._ClassNameRegex ) ; |
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var indentStep = 0 ; |
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if ( indentClass != null ) |
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{ |
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indentClass = indentClass[1] ; |
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indentStep = FCKIndentCommand._IndentClassMap[indentClass] ; |
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} |
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|
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// Operate on indent step index, transform indent step index back to class name. |
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if ( this.Name.IEquals( 'outdent' ) ) |
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indentStep-- ; |
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else if ( this.Name.IEquals( 'indent' ) ) |
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indentStep++ ; |
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indentStep = Math.min( indentStep, FCKConfig.IndentClasses.length ) ; |
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indentStep = Math.max( indentStep, 0 ) ; |
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var className = block.className.replace( FCKIndentCommand._ClassNameRegex, '' ) ; |
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if ( indentStep < 1 ) |
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block.className = className ; |
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else |
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block.className = ( className.length > 0 ? className + ' ' : '' ) + |
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FCKConfig.IndentClasses[indentStep - 1] ; |
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} |
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else |
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{ |
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// Offset distance is assumed to be in pixels for now. |
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var currentOffset = parseInt( block.style[this.IndentCSSProperty], 10 ) ; |
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if ( isNaN( currentOffset ) ) |
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currentOffset = 0 ; |
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currentOffset += this.Offset ; |
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currentOffset = Math.max( currentOffset, 0 ) ; |
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currentOffset = Math.ceil( currentOffset / this.Offset ) * this.Offset ; |
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block.style[this.IndentCSSProperty] = currentOffset ? currentOffset + FCKConfig.IndentUnit : '' ; |
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if ( block.getAttribute( 'style' ) == '' ) |
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block.removeAttribute( 'style' ) ; |
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} |
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} |
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}, |
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|
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_IndentList : function( range, listNode ) |
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{ |
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// Our starting and ending points of the range might be inside some blocks under a list item... |
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// So before playing with the iterator, we need to expand the block to include the list items. |
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var startContainer = range.StartContainer ; |
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var endContainer = range.EndContainer ; |
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while ( startContainer && startContainer.parentNode != listNode ) |
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startContainer = startContainer.parentNode ; |
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while ( endContainer && endContainer.parentNode != listNode ) |
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endContainer = endContainer.parentNode ; |
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|
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if ( ! startContainer || ! endContainer ) |
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return ; |
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|
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// Now we can iterate over the individual items on the same tree depth. |
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var block = startContainer ; |
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var itemsToMove = [] ; |
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var stopFlag = false ; |
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while ( stopFlag == false ) |
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{ |
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if ( block == endContainer ) |
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stopFlag = true ; |
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itemsToMove.push( block ) ; |
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block = block.nextSibling ; |
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} |
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if ( itemsToMove.length < 1 ) |
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return ; |
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|
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// Do indent or outdent operations on the array model of the list, not the list's DOM tree itself. |
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// The array model demands that it knows as much as possible about the surrounding lists, we need |
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// to feed it the further ancestor node that is still a list. |
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var listParents = FCKDomTools.GetParents( listNode ) ; |
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for ( var i = 0 ; i < listParents.length ; i++ ) |
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{ |
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if ( listParents[i].nodeName.IEquals( ['ul', 'ol'] ) ) |
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{ |
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listNode = listParents[i] ; |
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break ; |
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} |
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} |
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var indentOffset = this.Name.IEquals( 'indent' ) ? 1 : -1 ; |
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var startItem = itemsToMove[0] ; |
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var lastItem = itemsToMove[ itemsToMove.length - 1 ] ; |
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var markerObj = {} ; |
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|
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// Convert the list DOM tree into a one dimensional array. |
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var listArray = FCKDomTools.ListToArray( listNode, markerObj ) ; |
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|
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// Apply indenting or outdenting on the array. |
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var baseIndent = listArray[lastItem._FCK_ListArray_Index].indent ; |
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for ( var i = startItem._FCK_ListArray_Index ; i <= lastItem._FCK_ListArray_Index ; i++ ) |
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listArray[i].indent += indentOffset ; |
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for ( var i = lastItem._FCK_ListArray_Index + 1 ; i < listArray.length && listArray[i].indent > baseIndent ; i++ ) |
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listArray[i].indent += indentOffset ; |
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|
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/* For debug use only |
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var PrintArray = function( listArray, doc ) |
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{ |
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var s = [] ; |
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for ( var i = 0 ; i < listArray.length ; i++ ) |
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{ |
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for ( var j in listArray[i] ) |
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{ |
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if ( j != 'contents' ) |
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s.push( j + ":" + listArray[i][j] + "; " ) ; |
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else |
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{ |
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var docFrag = doc.createDocumentFragment() ; |
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var tmpNode = doc.createElement( 'span' ) ; |
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for ( var k = 0 ; k < listArray[i][j].length ; k++ ) |
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docFrag.appendChild( listArray[i][j][k].cloneNode( true ) ) ; |
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tmpNode.appendChild( docFrag ) ; |
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s.push( j + ":" + tmpNode.innerHTML + "; ") ; |
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} |
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} |
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s.push( '\n' ) ; |
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} |
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alert( s.join('') ) ; |
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} |
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PrintArray( listArray, FCK.EditorDocument ) ; |
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*/ |
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|
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// Convert the array back to a DOM forest (yes we might have a few subtrees now). |
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// And replace the old list with the new forest. |
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var newList = FCKDomTools.ArrayToList( listArray ) ; |
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if ( newList ) |
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listNode.parentNode.replaceChild( newList.listNode, listNode ) ; |
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|
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// Clean up the markers. |
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FCKDomTools.ClearAllMarkers( markerObj ) ; |
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} |
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} ; |
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|
