459 lines
15 KiB
JavaScript
459 lines
15 KiB
JavaScript
/*
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Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
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For licensing, see LICENSE.html or http://ckeditor.com/license
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*/
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/**
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* @file Increse and decrease indent commands.
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*/
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(function()
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{
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var listNodeNames = { ol : 1, ul : 1 },
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isNotWhitespaces = CKEDITOR.dom.walker.whitespaces( true ),
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isNotBookmark = CKEDITOR.dom.walker.bookmark( false, true );
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function onSelectionChange( evt )
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{
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var editor = evt.editor,
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elementPath = evt.data.path,
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list = elementPath && elementPath.contains( listNodeNames ),
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firstBlock = elementPath.block || elementPath.blockLimit;
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if ( list )
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return this.setState( CKEDITOR.TRISTATE_OFF );
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if ( !this.useIndentClasses && this.name == 'indent' )
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return this.setState( CKEDITOR.TRISTATE_OFF );
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if ( !firstBlock )
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return this.setState( CKEDITOR.TRISTATE_DISABLED );
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if ( this.useIndentClasses )
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{
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var indentClass = firstBlock.$.className.match( this.classNameRegex ),
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indentStep = 0;
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if ( indentClass )
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{
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indentClass = indentClass[1];
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indentStep = this.indentClassMap[ indentClass ];
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}
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if ( ( this.name == 'outdent' && !indentStep ) ||
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( this.name == 'indent' && indentStep == editor.config.indentClasses.length ) )
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return this.setState( CKEDITOR.TRISTATE_DISABLED );
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return this.setState( CKEDITOR.TRISTATE_OFF );
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}
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else
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{
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var indent = parseInt( firstBlock.getStyle( getIndentCssProperty( firstBlock ) ), 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 this.setState( CKEDITOR.TRISTATE_DISABLED );
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return this.setState( CKEDITOR.TRISTATE_OFF );
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}
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}
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function indentCommand( editor, name )
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{
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this.name = name;
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this.useIndentClasses = editor.config.indentClasses && editor.config.indentClasses.length > 0;
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if ( this.useIndentClasses )
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{
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this.classNameRegex = new RegExp( '(?:^|\\s+)(' + editor.config.indentClasses.join( '|' ) + ')(?=$|\\s)' );
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this.indentClassMap = {};
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for ( var i = 0 ; i < editor.config.indentClasses.length ; i++ )
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this.indentClassMap[ editor.config.indentClasses[i] ] = i + 1;
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}
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this.startDisabled = name == 'outdent';
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}
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// Returns the CSS property to be used for identing a given element.
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function getIndentCssProperty( element, dir )
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{
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return ( dir || element.getComputedStyle( 'direction' ) ) == 'ltr' ? 'margin-left' : 'margin-right';
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}
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function isListItem( node )
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{
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return node.type = CKEDITOR.NODE_ELEMENT && node.is( 'li' );
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}
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indentCommand.prototype = {
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exec : function( editor )
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{
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var self = this, database = {};
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function indentList( 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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endContainer = range.endContainer;
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while ( startContainer && !startContainer.getParent().equals( listNode ) )
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startContainer = startContainer.getParent();
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while ( endContainer && !endContainer.getParent().equals( listNode ) )
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endContainer = endContainer.getParent();
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if ( !startContainer || !endContainer )
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return;
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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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itemsToMove = [],
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stopFlag = false;
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while ( !stopFlag )
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{
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if ( block.equals( endContainer ) )
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stopFlag = true;
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itemsToMove.push( block );
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block = block.getNext();
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}
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if ( itemsToMove.length < 1 )
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return;
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// Do indent or outdent operations on the array model of the list, not the
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// list's DOM tree itself. The array model demands that it knows as much as
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// possible about the surrounding lists, we need to feed it the further
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// ancestor node that is still a list.
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var listParents = listNode.getParents( true );
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for ( var i = 0 ; i < listParents.length ; i++ )
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{
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if ( listParents[i].getName && listNodeNames[ listParents[i].getName() ] )
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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 = self.name == 'indent' ? 1 : -1,
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startItem = itemsToMove[0],
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lastItem = itemsToMove[ itemsToMove.length - 1 ];
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// Convert the list DOM tree into a one dimensional array.
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var listArray = CKEDITOR.plugins.list.listToArray( listNode, database );
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// Apply indenting or outdenting on the array.
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var baseIndent = listArray[ lastItem.getCustomData( 'listarray_index' ) ].indent;
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for ( i = startItem.getCustomData( 'listarray_index' ); i <= lastItem.getCustomData( 'listarray_index' ); i++ )
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{
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listArray[ i ].indent += indentOffset;
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// Make sure the newly created sublist get a brand-new element of the same type. (#5372)
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var listRoot = listArray[ i ].parent;
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listArray[ i ].parent = new CKEDITOR.dom.element( listRoot.getName(), listRoot.getDocument() );
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}
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for ( i = lastItem.getCustomData( 'listarray_index' ) + 1 ;
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i < listArray.length && listArray[i].indent > baseIndent ; i++ )
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listArray[i].indent += indentOffset;
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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 = CKEDITOR.plugins.list.arrayToList( listArray, database, null, editor.config.enterMode, listNode.getDirection() );
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// Avoid nested <li> after outdent even they're visually same,
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// recording them for later refactoring.(#3982)
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if ( self.name == 'outdent' )
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{
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var parentLiElement;
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if ( ( parentLiElement = listNode.getParent() ) && parentLiElement.is( 'li' ) )
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{
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var children = newList.listNode.getChildren(),
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pendingLis = [],
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count = children.count(),
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child;
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for ( i = count - 1 ; i >= 0 ; i-- )
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{
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if ( ( child = children.getItem( i ) ) && child.is && child.is( 'li' ) )
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pendingLis.push( child );
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}
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}
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}
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if ( newList )
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newList.listNode.replace( listNode );
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// Move the nested <li> to be appeared after the parent.
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if ( pendingLis && pendingLis.length )
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{
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for ( i = 0; i < pendingLis.length ; i++ )
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{
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var li = pendingLis[ i ],
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followingList = li;
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// Nest preceding <ul>/<ol> inside current <li> if any.
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while ( ( followingList = followingList.getNext() ) &&
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followingList.is &&
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followingList.getName() in listNodeNames )
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{
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// IE requires a filler NBSP for nested list inside empty list item,
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// otherwise the list item will be inaccessiable. (#4476)
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if ( CKEDITOR.env.ie && !li.getFirst( function( node ){ return isNotWhitespaces( node ) && isNotBookmark( node ); } ) )
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li.append( range.document.createText( '\u00a0' ) );
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li.append( followingList );
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}
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li.insertAfter( parentLiElement );
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}
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}
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}
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function indentBlock()
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{
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var iterator = range.createIterator(),
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enterMode = editor.config.enterMode;
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iterator.enforceRealBlocks = true;
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iterator.enlargeBr = enterMode != CKEDITOR.ENTER_BR;
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var block;
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while ( ( block = iterator.getNextParagraph( enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' ) ) )
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indentElement( block );
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}
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function indentElement( element, dir )
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{
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if ( element.getCustomData( 'indent_processed' ) )
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return false;
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if ( self.useIndentClasses )
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{
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// Transform current class name to indent step index.
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var indentClass = element.$.className.match( self.classNameRegex ),
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indentStep = 0;
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if ( indentClass )
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{
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indentClass = indentClass[1];
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indentStep = self.indentClassMap[ indentClass ];
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}
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// Operate on indent step index, transform indent step index back to class
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// name.
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if ( self.name == 'outdent' )
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indentStep--;
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else
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indentStep++;
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if ( indentStep < 0 )
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return false;
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indentStep = Math.min( indentStep, editor.config.indentClasses.length );
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indentStep = Math.max( indentStep, 0 );
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element.$.className = CKEDITOR.tools.ltrim( element.$.className.replace( self.classNameRegex, '' ) );
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if ( indentStep > 0 )
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element.addClass( editor.config.indentClasses[ indentStep - 1 ] );
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}
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else
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{
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var indentCssProperty = getIndentCssProperty( element, dir ),
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currentOffset = parseInt( element.getStyle( indentCssProperty ), 10 );
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if ( isNaN( currentOffset ) )
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currentOffset = 0;
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var indentOffset = editor.config.indentOffset || 40;
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currentOffset += ( self.name == 'indent' ? 1 : -1 ) * indentOffset;
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if ( currentOffset < 0 )
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return false;
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currentOffset = Math.max( currentOffset, 0 );
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currentOffset = Math.ceil( currentOffset / indentOffset ) * indentOffset;
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element.setStyle( indentCssProperty, currentOffset ? currentOffset + ( editor.config.indentUnit || 'px' ) : '' );
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if ( element.getAttribute( 'style' ) === '' )
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element.removeAttribute( 'style' );
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}
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CKEDITOR.dom.element.setMarker( database, element, 'indent_processed', 1 );
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return true;
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}
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var selection = editor.getSelection(),
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bookmarks = selection.createBookmarks( 1 ),
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ranges = selection && selection.getRanges( 1 ),
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range;
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var iterator = ranges.createIterator();
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while ( ( range = iterator.getNextRange() ) )
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{
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var rangeRoot = range.getCommonAncestor(),
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nearestListBlock = rangeRoot;
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while ( nearestListBlock && !( nearestListBlock.type == CKEDITOR.NODE_ELEMENT &&
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listNodeNames[ nearestListBlock.getName() ] ) )
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nearestListBlock = nearestListBlock.getParent();
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// Avoid having selection enclose the entire list. (#6138)
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// [<ul><li>...</li></ul>] =><ul><li>[...]</li></ul>
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if ( !nearestListBlock )
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{
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var selectedNode = range.getEnclosedNode();
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if ( selectedNode
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&& selectedNode.type == CKEDITOR.NODE_ELEMENT
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&& selectedNode.getName() in listNodeNames)
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{
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range.setStartAt( selectedNode, CKEDITOR.POSITION_AFTER_START );
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range.setEndAt( selectedNode, CKEDITOR.POSITION_BEFORE_END );
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nearestListBlock = selectedNode;
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}
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}
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// Avoid selection anchors under list root.
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// <ul>[<li>...</li>]</ul> => <ul><li>[...]</li></ul>
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if ( nearestListBlock && range.startContainer.type == CKEDITOR.NODE_ELEMENT
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&& range.startContainer.getName() in listNodeNames )
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{
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var walker = new CKEDITOR.dom.walker( range );
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walker.evaluator = isListItem;
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range.startContainer = walker.next();
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}
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if ( nearestListBlock && range.endContainer.type == CKEDITOR.NODE_ELEMENT
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&& range.endContainer.getName() in listNodeNames )
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{
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walker = new CKEDITOR.dom.walker( range );
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walker.evaluator = isListItem;
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range.endContainer = walker.previous();
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}
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if ( nearestListBlock )
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{
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var firstListItem = nearestListBlock.getFirst( isListItem ),
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hasMultipleItems = !!firstListItem.getNext( isListItem ),
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rangeStart = range.startContainer,
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indentWholeList = firstListItem.equals( rangeStart ) || firstListItem.contains( rangeStart );
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// Indent the entire list if cursor is inside the first list item. (#3893)
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// Only do that for indenting or when using indent classes or when there is something to outdent. (#6141)
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if ( !( indentWholeList &&
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( self.name == 'indent' || self.useIndentClasses || parseInt( nearestListBlock.getStyle( getIndentCssProperty( nearestListBlock ) ), 10 ) ) &&
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indentElement( nearestListBlock, !hasMultipleItems && firstListItem.getDirection() ) ) )
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indentList( nearestListBlock );
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}
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else
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indentBlock();
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}
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// Clean up the markers.
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CKEDITOR.dom.element.clearAllMarkers( database );
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editor.forceNextSelectionCheck();
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selection.selectBookmarks( bookmarks );
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}
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};
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CKEDITOR.plugins.add( 'indent',
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{
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init : function( editor )
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{
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// Register commands.
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var indent = editor.addCommand( 'indent', new indentCommand( editor, 'indent' ) ),
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outdent = editor.addCommand( 'outdent', new indentCommand( editor, 'outdent' ) );
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// Register the toolbar buttons.
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editor.ui.addButton( 'Indent',
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{
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label : editor.lang.indent,
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command : 'indent'
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});
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editor.ui.addButton( 'Outdent',
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{
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label : editor.lang.outdent,
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command : 'outdent'
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});
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// Register the state changing handlers.
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editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, indent ) );
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editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, outdent ) );
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// [IE6/7] Raw lists are using margin instead of padding for visual indentation in wysiwyg mode. (#3893)
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if ( CKEDITOR.env.ie6Compat || CKEDITOR.env.ie7Compat )
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{
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editor.addCss(
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"ul,ol" +
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"{" +
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" margin-left: 0px;" +
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" padding-left: 40px;" +
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"}" );
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}
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// Register dirChanged listener.
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editor.on( 'dirChanged', function( e )
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{
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var range = new CKEDITOR.dom.range( editor.document );
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range.setStartBefore( e.data.node );
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range.setEndAfter( e.data.node );
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var walker = new CKEDITOR.dom.walker( range ),
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node;
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while ( ( node = walker.next() ) )
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{
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if ( node.type == CKEDITOR.NODE_ELEMENT )
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{
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// A child with the defined dir is to be ignored.
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if ( !node.equals( e.data.node ) && node.getDirection() )
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{
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range.setStartAfter( node );
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walker = new CKEDITOR.dom.walker( range );
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continue;
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}
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// Switch alignment classes.
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var classes = editor.config.indentClasses;
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if ( classes )
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{
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var suffix = ( e.data.dir == 'ltr' ) ? [ '_rtl', '' ] : [ '', '_rtl' ];
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for ( var i = 0; i < classes.length; i++ )
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{
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if ( node.hasClass( classes[ i ] + suffix[ 0 ] ) )
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{
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node.removeClass( classes[ i ] + suffix[ 0 ] );
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node.addClass( classes[ i ] + suffix[ 1 ] );
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}
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}
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}
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// Switch the margins.
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var marginLeft = node.getStyle( 'margin-right' ),
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marginRight = node.getStyle( 'margin-left' );
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marginLeft ? node.setStyle( 'margin-left', marginLeft ) : node.removeStyle( 'margin-left' );
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marginRight ? node.setStyle( 'margin-right', marginRight ) : node.removeStyle( 'margin-right' );
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}
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}
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});
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},
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requires : [ 'domiterator', 'list' ]
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} );
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})();
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/**
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* Size of each indentation step
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* @name CKEDITOR.config.indentOffset
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* @type Number
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* @default 40
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* @example
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* config.indentOffset = 4;
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*/
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/**
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* Unit for the indentation style
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* @name CKEDITOR.config.indentUnit
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* @type String
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* @default 'px'
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* @example
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* config.indentUnit = 'em';
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*/
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/**
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* List of classes to use for indenting the contents. If it's null, no classes will be used
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* and instead the {@link #indentUnit} and {@link #indentOffset} properties will be used.
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* @name CKEDITOR.config.indentClasses
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* @type Array
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* default null
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* @example
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* // Use the classes 'Indent1', 'Indent2', 'Indent3'
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* config.indentClasses = ['Indent1', 'Indent2', 'Indent3'];
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*/
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