303 lines
8.5 KiB
JavaScript
303 lines
8.5 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 Blockquote.
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*/
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(function()
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{
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function getState( editor, path )
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{
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var firstBlock = path.block || path.blockLimit;
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if ( !firstBlock || firstBlock.getName() == 'body' )
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return CKEDITOR.TRISTATE_OFF;
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// See if the first block has a blockquote parent.
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if ( firstBlock.getAscendant( 'blockquote', true ) )
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return CKEDITOR.TRISTATE_ON;
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return CKEDITOR.TRISTATE_OFF;
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}
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function onSelectionChange( evt )
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{
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var editor = evt.editor,
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command = editor.getCommand( 'blockquote' );
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command.state = getState( editor, evt.data.path );
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command.fire( 'state' );
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}
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function noBlockLeft( bqBlock )
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{
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for ( var i = 0, length = bqBlock.getChildCount(), child ; i < length && ( child = bqBlock.getChild( i ) ) ; i++ )
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{
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if ( child.type == CKEDITOR.NODE_ELEMENT && child.isBlockBoundary() )
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return false;
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}
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return true;
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}
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var commandObject =
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{
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exec : function( editor )
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{
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var state = editor.getCommand( 'blockquote' ).state,
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selection = editor.getSelection(),
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range = selection && selection.getRanges( true )[0];
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if ( !range )
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return;
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var bookmarks = selection.createBookmarks();
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// Kludge for #1592: if the bookmark nodes are in the beginning of
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// blockquote, then move them to the nearest block element in the
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// blockquote.
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if ( CKEDITOR.env.ie )
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{
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var bookmarkStart = bookmarks[0].startNode,
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bookmarkEnd = bookmarks[0].endNode,
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cursor;
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if ( bookmarkStart && bookmarkStart.getParent().getName() == 'blockquote' )
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{
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cursor = bookmarkStart;
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while ( ( cursor = cursor.getNext() ) )
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{
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if ( cursor.type == CKEDITOR.NODE_ELEMENT &&
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cursor.isBlockBoundary() )
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{
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bookmarkStart.move( cursor, true );
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break;
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}
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}
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}
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if ( bookmarkEnd
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&& bookmarkEnd.getParent().getName() == 'blockquote' )
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{
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cursor = bookmarkEnd;
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while ( ( cursor = cursor.getPrevious() ) )
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{
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if ( cursor.type == CKEDITOR.NODE_ELEMENT &&
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cursor.isBlockBoundary() )
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{
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bookmarkEnd.move( cursor );
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break;
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}
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}
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}
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}
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var iterator = range.createIterator(),
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block;
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iterator.enlargeBr = editor.config.enterMode != CKEDITOR.ENTER_BR;
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if ( state == CKEDITOR.TRISTATE_OFF )
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{
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var paragraphs = [];
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while ( ( block = iterator.getNextParagraph() ) )
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paragraphs.push( block );
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// If no paragraphs, create one from the current selection position.
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if ( paragraphs.length < 1 )
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{
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var para = editor.document.createElement( editor.config.enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' ),
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firstBookmark = bookmarks.shift();
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range.insertNode( para );
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para.append( new CKEDITOR.dom.text( '\ufeff', editor.document ) );
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range.moveToBookmark( firstBookmark );
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range.selectNodeContents( para );
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range.collapse( true );
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firstBookmark = range.createBookmark();
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paragraphs.push( para );
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bookmarks.unshift( firstBookmark );
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}
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// Make sure all paragraphs have the same parent.
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var commonParent = paragraphs[0].getParent(),
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tmp = [];
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for ( var i = 0 ; i < paragraphs.length ; i++ )
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{
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block = paragraphs[i];
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commonParent = commonParent.getCommonAncestor( block.getParent() );
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}
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// The common parent must not be the following tags: table, tbody, tr, ol, ul.
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var denyTags = { table : 1, tbody : 1, tr : 1, ol : 1, ul : 1 };
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while ( denyTags[ commonParent.getName() ] )
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commonParent = commonParent.getParent();
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// Reconstruct the block list to be processed such that all resulting blocks
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// satisfy parentNode.equals( commonParent ).
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var lastBlock = null;
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while ( paragraphs.length > 0 )
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{
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block = paragraphs.shift();
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while ( !block.getParent().equals( commonParent ) )
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block = block.getParent();
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if ( !block.equals( lastBlock ) )
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tmp.push( block );
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lastBlock = block;
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}
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// If any of the selected blocks is a blockquote, remove it to prevent
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// nested blockquotes.
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while ( tmp.length > 0 )
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{
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block = tmp.shift();
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if ( block.getName() == 'blockquote' )
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{
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var docFrag = new CKEDITOR.dom.documentFragment( editor.document );
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while ( block.getFirst() )
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{
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docFrag.append( block.getFirst().remove() );
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paragraphs.push( docFrag.getLast() );
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}
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docFrag.replace( block );
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}
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else
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paragraphs.push( block );
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}
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// Now we have all the blocks to be included in a new blockquote node.
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var bqBlock = editor.document.createElement( 'blockquote' );
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bqBlock.insertBefore( paragraphs[0] );
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while ( paragraphs.length > 0 )
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{
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block = paragraphs.shift();
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bqBlock.append( block );
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}
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}
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else if ( state == CKEDITOR.TRISTATE_ON )
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{
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var moveOutNodes = [],
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database = {};
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while ( ( block = iterator.getNextParagraph() ) )
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{
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var bqParent = null,
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bqChild = null;
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while ( block.getParent() )
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{
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if ( block.getParent().getName() == 'blockquote' )
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{
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bqParent = block.getParent();
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bqChild = block;
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break;
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}
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block = block.getParent();
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}
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// Remember the blocks that were recorded down in the moveOutNodes array
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// to prevent duplicates.
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if ( bqParent && bqChild && !bqChild.getCustomData( 'blockquote_moveout' ) )
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{
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moveOutNodes.push( bqChild );
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CKEDITOR.dom.element.setMarker( database, bqChild, 'blockquote_moveout', true );
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}
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}
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CKEDITOR.dom.element.clearAllMarkers( database );
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var movedNodes = [],
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processedBlockquoteBlocks = [];
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database = {};
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while ( moveOutNodes.length > 0 )
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{
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var node = moveOutNodes.shift();
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bqBlock = node.getParent();
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// If the node is located at the beginning or the end, just take it out
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// without splitting. Otherwise, split the blockquote node and move the
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// paragraph in between the two blockquote nodes.
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if ( !node.getPrevious() )
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node.remove().insertBefore( bqBlock );
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else if ( !node.getNext() )
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node.remove().insertAfter( bqBlock );
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else
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{
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node.breakParent( node.getParent() );
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processedBlockquoteBlocks.push( node.getNext() );
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}
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// Remember the blockquote node so we can clear it later (if it becomes empty).
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if ( !bqBlock.getCustomData( 'blockquote_processed' ) )
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{
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processedBlockquoteBlocks.push( bqBlock );
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CKEDITOR.dom.element.setMarker( database, bqBlock, 'blockquote_processed', true );
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}
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movedNodes.push( node );
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}
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CKEDITOR.dom.element.clearAllMarkers( database );
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// Clear blockquote nodes that have become empty.
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for ( i = processedBlockquoteBlocks.length - 1 ; i >= 0 ; i-- )
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{
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bqBlock = processedBlockquoteBlocks[i];
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if ( noBlockLeft( bqBlock ) )
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bqBlock.remove();
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}
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if ( editor.config.enterMode == CKEDITOR.ENTER_BR )
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{
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var firstTime = true;
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while ( movedNodes.length )
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{
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node = movedNodes.shift();
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if ( node.getName() == 'div' )
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{
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docFrag = new CKEDITOR.dom.documentFragment( editor.document );
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var needBeginBr = firstTime && node.getPrevious() &&
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!( node.getPrevious().type == CKEDITOR.NODE_ELEMENT && node.getPrevious().isBlockBoundary() );
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if ( needBeginBr )
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docFrag.append( editor.document.createElement( 'br' ) );
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var needEndBr = node.getNext() &&
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!( node.getNext().type == CKEDITOR.NODE_ELEMENT && node.getNext().isBlockBoundary() );
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while ( node.getFirst() )
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node.getFirst().remove().appendTo( docFrag );
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if ( needEndBr )
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docFrag.append( editor.document.createElement( 'br' ) );
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docFrag.replace( node );
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firstTime = false;
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}
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}
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}
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}
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selection.selectBookmarks( bookmarks );
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editor.focus();
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}
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};
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CKEDITOR.plugins.add( 'blockquote',
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{
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init : function( editor )
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{
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editor.addCommand( 'blockquote', commandObject );
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editor.ui.addButton( 'Blockquote',
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{
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label : editor.lang.blockquote,
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command : 'blockquote'
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} );
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editor.on( 'selectionChange', onSelectionChange );
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},
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requires : [ 'domiterator' ]
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} );
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})();
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