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/*
Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
/**
* @file Blockquote.
*/
(function()
{
function getState( editor, path )
{
var firstBlock = path.block || path.blockLimit;
if ( !firstBlock || firstBlock.getName() == 'body' )
return CKEDITOR.TRISTATE_OFF;
// See if the first block has a blockquote parent.
if ( firstBlock.getAscendant( 'blockquote', true ) )
return CKEDITOR.TRISTATE_ON;
return CKEDITOR.TRISTATE_OFF;
}
function onSelectionChange( evt )
{
var editor = evt.editor;
if ( editor.readOnly )
return;
var command = editor.getCommand( 'blockquote' );
command.state = getState( editor, evt.data.path );
command.fire( 'state' );
}
function noBlockLeft( bqBlock )
{
for ( var i = 0, length = bqBlock.getChildCount(), child ; i < length && ( child = bqBlock.getChild( i ) ) ; i++ )
{
if ( child.type == CKEDITOR.NODE_ELEMENT && child.isBlockBoundary() )
return false;
}
return true;
}
var commandObject =
{
exec : function( editor )
{
var state = editor.getCommand( 'blockquote' ).state,
selection = editor.getSelection(),
range = selection && selection.getRanges( true )[0];
if ( !range )
return;
var bookmarks = selection.createBookmarks();
// Kludge for #1592: if the bookmark nodes are in the beginning of
// blockquote, then move them to the nearest block element in the
// blockquote.
if ( CKEDITOR.env.ie )
{
var bookmarkStart = bookmarks[0].startNode,
bookmarkEnd = bookmarks[0].endNode,
cursor;
if ( bookmarkStart && bookmarkStart.getParent().getName() == 'blockquote' )
{
cursor = bookmarkStart;
while ( ( cursor = cursor.getNext() ) )
{
if ( cursor.type == CKEDITOR.NODE_ELEMENT &&
cursor.isBlockBoundary() )
{
bookmarkStart.move( cursor, true );
break;
}
}
}
if ( bookmarkEnd
&& bookmarkEnd.getParent().getName() == 'blockquote' )
{
cursor = bookmarkEnd;
while ( ( cursor = cursor.getPrevious() ) )
{
if ( cursor.type == CKEDITOR.NODE_ELEMENT &&
cursor.isBlockBoundary() )
{
bookmarkEnd.move( cursor );
break;
}
}
}
}
var iterator = range.createIterator(),
block;
iterator.enlargeBr = editor.config.enterMode != CKEDITOR.ENTER_BR;
if ( state == CKEDITOR.TRISTATE_OFF )
{
var paragraphs = [];
while ( ( block = iterator.getNextParagraph() ) )
paragraphs.push( block );
// If no paragraphs, create one from the current selection position.
if ( paragraphs.length < 1 )
{
var para = editor.document.createElement( editor.config.enterMode == CKEDITOR.ENTER_P ? 'p' : 'div' ),
firstBookmark = bookmarks.shift();
range.insertNode( para );
para.append( new CKEDITOR.dom.text( '\ufeff', editor.document ) );
range.moveToBookmark( firstBookmark );
range.selectNodeContents( para );
range.collapse( true );
firstBookmark = range.createBookmark();
paragraphs.push( para );
bookmarks.unshift( firstBookmark );
}
// Make sure all paragraphs have the same parent.
var commonParent = paragraphs[0].getParent(),
tmp = [];
for ( var i = 0 ; i < paragraphs.length ; i++ )
{
block = paragraphs[i];
commonParent = commonParent.getCommonAncestor( block.getParent() );
}
// The common parent must not be the following tags: table, tbody, tr, ol, ul.
var denyTags = { table : 1, tbody : 1, tr : 1, ol : 1, ul : 1 };
while ( denyTags[ commonParent.getName() ] )
commonParent = commonParent.getParent();
// Reconstruct the block list to be processed such that all resulting blocks
// satisfy parentNode.equals( commonParent ).
var lastBlock = null;
while ( paragraphs.length > 0 )
{
block = paragraphs.shift();
while ( !block.getParent().equals( commonParent ) )
block = block.getParent();
if ( !block.equals( lastBlock ) )
tmp.push( block );
lastBlock = block;
}
// If any of the selected blocks is a blockquote, remove it to prevent
// nested blockquotes.
while ( tmp.length > 0 )
{
block = tmp.shift();
if ( block.getName() == 'blockquote' )
{
var docFrag = new CKEDITOR.dom.documentFragment( editor.document );
while ( block.getFirst() )
{
docFrag.append( block.getFirst().remove() );
paragraphs.push( docFrag.getLast() );
}
docFrag.replace( block );
}
else
paragraphs.push( block );
}
// Now we have all the blocks to be included in a new blockquote node.
var bqBlock = editor.document.createElement( 'blockquote' );
bqBlock.insertBefore( paragraphs[0] );
while ( paragraphs.length > 0 )
{
block = paragraphs.shift();
bqBlock.append( block );
}
}
else if ( state == CKEDITOR.TRISTATE_ON )
{
var moveOutNodes = [],
database = {};
while ( ( block = iterator.getNextParagraph() ) )
{
var bqParent = null,
bqChild = null;
while ( block.getParent() )
{
if ( block.getParent().getName() == 'blockquote' )
{
bqParent = block.getParent();
bqChild = block;
break;
}
block = block.getParent();
}
// Remember the blocks that were recorded down in the moveOutNodes array
// to prevent duplicates.
if ( bqParent && bqChild && !bqChild.getCustomData( 'blockquote_moveout' ) )
{
moveOutNodes.push( bqChild );
CKEDITOR.dom.element.setMarker( database, bqChild, 'blockquote_moveout', true );
}
}
CKEDITOR.dom.element.clearAllMarkers( database );
var movedNodes = [],
processedBlockquoteBlocks = [];
database = {};
while ( moveOutNodes.length > 0 )
{
var node = moveOutNodes.shift();
bqBlock = node.getParent();
// If the node is located at the beginning or the end, just take it out
// without splitting. Otherwise, split the blockquote node and move the
// paragraph in between the two blockquote nodes.
if ( !node.getPrevious() )
node.remove().insertBefore( bqBlock );
else if ( !node.getNext() )
node.remove().insertAfter( bqBlock );
else
{
node.breakParent( node.getParent() );
processedBlockquoteBlocks.push( node.getNext() );
}
// Remember the blockquote node so we can clear it later (if it becomes empty).
if ( !bqBlock.getCustomData( 'blockquote_processed' ) )
{
processedBlockquoteBlocks.push( bqBlock );
CKEDITOR.dom.element.setMarker( database, bqBlock, 'blockquote_processed', true );
}
movedNodes.push( node );
}
CKEDITOR.dom.element.clearAllMarkers( database );
// Clear blockquote nodes that have become empty.
for ( i = processedBlockquoteBlocks.length - 1 ; i >= 0 ; i-- )
{
bqBlock = processedBlockquoteBlocks[i];
if ( noBlockLeft( bqBlock ) )
bqBlock.remove();
}
if ( editor.config.enterMode == CKEDITOR.ENTER_BR )
{
var firstTime = true;
while ( movedNodes.length )
{
node = movedNodes.shift();
if ( node.getName() == 'div' )
{
docFrag = new CKEDITOR.dom.documentFragment( editor.document );
var needBeginBr = firstTime && node.getPrevious() &&
!( node.getPrevious().type == CKEDITOR.NODE_ELEMENT && node.getPrevious().isBlockBoundary() );
if ( needBeginBr )
docFrag.append( editor.document.createElement( 'br' ) );
var needEndBr = node.getNext() &&
!( node.getNext().type == CKEDITOR.NODE_ELEMENT && node.getNext().isBlockBoundary() );
while ( node.getFirst() )
node.getFirst().remove().appendTo( docFrag );
if ( needEndBr )
docFrag.append( editor.document.createElement( 'br' ) );
docFrag.replace( node );
firstTime = false;
}
}
}
}
selection.selectBookmarks( bookmarks );
editor.focus();
}
};
CKEDITOR.plugins.add( 'blockquote',
{
init : function( editor )
{
editor.addCommand( 'blockquote', commandObject );
editor.ui.addButton( 'Blockquote',
{
label : editor.lang.blockquote,
command : 'blockquote'
} );
editor.on( 'selectionChange', onSelectionChange );
},
requires : [ 'domiterator' ]
} );
})();
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