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/* * FCKeditor - The text editor for Internet - http://www.fckeditor.net * Copyright (C) 2003-2009 Frederico Caldeira Knabben * * == BEGIN LICENSE == * * Licensed under the terms of any of the following licenses at your * choice: * * - GNU General Public License Version 2 or later (the "GPL") * http://www.gnu.org/licenses/gpl.html * * - GNU Lesser General Public License Version 2.1 or later (the "LGPL") * http://www.gnu.org/licenses/lgpl.html * * - Mozilla Public License Version 1.1 or later (the "MPL") * http://www.mozilla.org/MPL/MPL-1.1.html * * == END LICENSE == * * FCKJustifyCommand Class: controls block justification. */ var FCKJustifyCommand = function( alignValue ) { this.AlignValue = alignValue ; // Detect whether this is the instance for the default alignment. var contentDir = FCKConfig.ContentLangDirection.toLowerCase() ; this.IsDefaultAlign = ( alignValue == 'left' && contentDir == 'ltr' ) || ( alignValue == 'right' && contentDir == 'rtl' ) ; // Get the class name to be used by this instance. var cssClassName = this._CssClassName = ( function() { var classes = FCKConfig.JustifyClasses ; if ( classes ) { switch ( alignValue ) { case 'left' : return classes[0] || null ; case 'center' : return classes[1] || null ; case 'right' : return classes[2] || null ; case 'justify' : return classes[3] || null ; } } return null ; } )() ; if ( cssClassName && cssClassName.length > 0 ) this._CssClassRegex = new RegExp( '(?:^|\\s+)' + cssClassName + '(?=$|\\s)' ) ; } FCKJustifyCommand._GetClassNameRegex = function() { var regex = FCKJustifyCommand._ClassRegex ; if ( regex != undefined ) return regex ; var names = [] ; var classes = FCKConfig.JustifyClasses ; if ( classes ) { for ( var i = 0 ; i < 4 ; i++ ) { var className = classes[i] ; if ( className && className.length > 0 ) names.push( className ) ; } } if ( names.length > 0 ) regex = new RegExp( '(?:^|\\s+)(?:' + names.join( '|' ) + ')(?=$|\\s)' ) ; else regex = null ; return FCKJustifyCommand._ClassRegex = regex ; } FCKJustifyCommand.prototype = { Execute : function() { // Save an undo snapshot before doing anything. FCKUndo.SaveUndoStep() ; var range = new FCKDomRange( FCK.EditorWindow ) ; range.MoveToSelection() ; var currentState = this.GetState() ; if ( currentState == FCK_TRISTATE_DISABLED ) return ; // Store a bookmark of the selection since the paragraph iterator might // change the DOM tree and break selections. var bookmark = range.CreateBookmark() ; var cssClassName = this._CssClassName ; // Apply alignment setting for each paragraph. var iterator = new FCKDomRangeIterator( range ) ; var block ; while ( ( block = iterator.GetNextParagraph() ) ) { block.removeAttribute( 'align' ) ; if ( cssClassName ) { // Remove the any of the alignment classes from the className. var className = block.className.replace( FCKJustifyCommand._GetClassNameRegex(), '' ) ; // Append the desired class name. if ( currentState == FCK_TRISTATE_OFF ) { if ( className.length > 0 ) className += ' ' ; block.className = className + cssClassName ; } else if ( className.length == 0 ) FCKDomTools.RemoveAttribute( block, 'class' ) ; } else { var style = block.style ; if ( currentState == FCK_TRISTATE_OFF ) style.textAlign = this.AlignValue ; else { style.textAlign = '' ; if ( style.cssText.length == 0 ) block.removeAttribute( 'style' ) ; } } } // Restore previous selection. range.MoveToBookmark( bookmark ) ; range.Select() ; FCK.Focus() ; FCK.Events.FireEvent( 'OnSelectionChange' ) ; }, GetState : function() { // Disabled if not WYSIWYG. if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG || ! FCK.EditorWindow ) return FCK_TRISTATE_DISABLED ; // Retrieve the first selected block. var path = new FCKElementPath( FCKSelection.GetBoundaryParentElement( true ) ) ; var firstBlock = path.Block || path.BlockLimit ; if ( !firstBlock || firstBlock.nodeName.toLowerCase() == 'body' ) return FCK_TRISTATE_OFF ; // Check if the desired style is already applied to the block. var currentAlign ; if ( FCKBrowserInfo.IsIE ) currentAlign = firstBlock.currentStyle.textAlign ; else currentAlign = FCK.EditorWindow.getComputedStyle( firstBlock, '' ).getPropertyValue( 'text-align' ); currentAlign = currentAlign.replace( /(-moz-|-webkit-|start|auto)/i, '' ); if ( ( !currentAlign && this.IsDefaultAlign ) || currentAlign == this.AlignValue ) return FCK_TRISTATE_ON ; return FCK_TRISTATE_OFF ; } } ;