/*
Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
(function()
{
CKEDITOR.plugins.add( 'enterkey',
{
requires : [ 'keystrokes', 'indent' ],
init : function( editor )
{
var specialKeys = editor.specialKeys;
specialKeys[ 13 ] = enter;
specialKeys[ CKEDITOR.SHIFT + 13 ] = shiftEnter;
}
});
CKEDITOR.plugins.enterkey =
{
enterBlock : function( editor, mode, range, forceMode )
{
// Get the range for the current selection.
range = range || getRange( editor );
var doc = range.document;
// Exit the list when we're inside an empty list item block. (#5376)
if ( range.checkStartOfBlock() && range.checkEndOfBlock() )
{
var path = new CKEDITOR.dom.elementPath( range.startContainer ),
block = path.block;
if ( block.is( 'li' ) || block.getParent().is( 'li' ) )
{
editor.execCommand( 'outdent' );
return;
}
}
// Determine the block element to be used.
var blockTag = ( mode == CKEDITOR.ENTER_DIV ? 'div' : 'p' );
// Split the range.
var splitInfo = range.splitBlock( blockTag );
if ( !splitInfo )
return;
// Get the current blocks.
var previousBlock = splitInfo.previousBlock,
nextBlock = splitInfo.nextBlock;
var isStartOfBlock = splitInfo.wasStartOfBlock,
isEndOfBlock = splitInfo.wasEndOfBlock;
var node;
// If this is a block under a list item, split it as well. (#1647)
if ( nextBlock )
{
node = nextBlock.getParent();
if ( node.is( 'li' ) )
{
nextBlock.breakParent( node );
nextBlock.move( nextBlock.getNext(), true );
}
}
else if ( previousBlock && ( node = previousBlock.getParent() ) && node.is( 'li' ) )
{
previousBlock.breakParent( node );
range.moveToElementEditStart( previousBlock.getNext() );
previousBlock.move( previousBlock.getPrevious() );
}
// If we have both the previous and next blocks, it means that the
// boundaries were on separated blocks, or none of them where on the
// block limits (start/end).
if ( !isStartOfBlock && !isEndOfBlock )
{
// If the next block is an <li> with another list tree as the first
// child, we'll need to append a filler (<br>/NBSP) or the list item
// wouldn't be editable. (#1420)
if ( nextBlock.is( 'li' )
&& ( node = nextBlock.getFirst( CKEDITOR.dom.walker.invisible( true ) ) )
&& node.is && node.is( 'ul', 'ol' ) )
( CKEDITOR.env.ie ? doc.createText( '\xa0' ) : doc.createElement( 'br' ) ).insertBefore( node );
// Move the selection to the end block.
if ( nextBlock )
range.moveToElementEditStart( nextBlock );
}
else
{
var newBlock;
if ( previousBlock )
{
// Do not enter this block if it's a header tag, or we are in
// a Shift+Enter (#77). Create a new block element instead
// (later in the code).
if ( previousBlock.is( 'li' ) ||
!( forceMode || headerTagRegex.test( previousBlock.getName() ) ) )
{
// Otherwise, duplicate the previous block.
newBlock = previousBlock.clone();
}
}
else if ( nextBlock )
newBlock = nextBlock.clone();
if ( !newBlock )
newBlock = doc.createElement( blockTag );
// Recreate the inline elements tree, which was available
// before hitting enter, so the same styles will be available in
// the new block.
var elementPath = splitInfo.elementPath;
if ( elementPath )
{
for ( var i = 0, len = elementPath.elements.length ; i < len ; i++ )
{
var element = elementPath.elements[ i ];
if ( element.equals( elementPath.block ) || element.equals( elementPath.blockLimit ) )
break;
if ( CKEDITOR.dtd.$removeEmpty[ element.getName() ] )
{
element = element.clone();
newBlock.moveChildren( element );
newBlock.append( element );
}
}
}
if ( !CKEDITOR.env.ie )
newBlock.appendBogus();
range.insertNode( newBlock );
// This is tricky, but to make the new block visible correctly
// we must select it.
// The previousBlock check has been included because it may be
// empty if we have fixed a block-less space (like ENTER into an
// empty table cell).
if ( CKEDITOR.env.ie && isStartOfBlock && ( !isEndOfBlock || !previousBlock.getChildCount() ) )
{
// Move the selection to the new block.
range.moveToElementEditStart( isEndOfBlock ? previousBlock : newBlock );
range.select();
}
// Move the selection to the new block.
range.moveToElementEditStart( isStartOfBlock && !isEndOfBlock ? nextBlock : newBlock );
}
if ( !CKEDITOR.env.ie )
{
if ( nextBlock )
{
// If we have split the block, adds a temporary span at the
// range position and scroll relatively to it.
var tmpNode = doc.createElement( 'span' );
// We need some content for Safari.
tmpNode.setHtml( ' ' );
range.insertNode( tmpNode );
tmpNode.scrollIntoView();
range.deleteContents();
}
else
{
// We may use the above scroll logic for the new block case
// too, but it gives some weird result with Opera.
newBlock.scrollIntoView();
}
}
range.select();
},
enterBr : function( editor, mode, range, forceMode )
{
// Get the range for the current selection.
range = range || getRange( editor );
var doc = range.document;
// Determine the block element to be used.
var blockTag = ( mode == CKEDITOR.ENTER_DIV ? 'div' : 'p' );
var isEndOfBlock = range.checkEndOfBlock();
var elementPath = new CKEDITOR.dom.elementPath( editor.getSelection().getStartElement() );
var startBlock = elementPath.block,
startBlockTag = startBlock && elementPath.block.getName();
var isPre = false;
if ( !forceMode && startBlockTag == 'li' )
{
enterBlock( editor, mode, range, forceMode );
return;
}
// If we are at the end of a header block.
if ( !forceMode && isEndOfBlock && headerTagRegex.test( startBlockTag ) )
{
// Insert a <br> after the current paragraph.
doc.createElement( 'br' ).insertAfter( startBlock );
// A text node is required by Gecko only to make the cursor blink.
if ( CKEDITOR.env.gecko )
doc.createText( '' ).insertAfter( startBlock );
// IE has different behaviors regarding position.
range.setStartAt( startBlock.getNext(), CKEDITOR.env.ie ? CKEDITOR.POSITION_BEFORE_START : CKEDITOR.POSITION_AFTER_START );
}
else
{
var lineBreak;
isPre = ( startBlockTag == 'pre' );
// Gecko prefers <br> as line-break inside <pre> (#4711).
if ( isPre && !CKEDITOR.env.gecko )
lineBreak = doc.createText( CKEDITOR.env.ie ? '\r' : '\n' );
else
lineBreak = doc.createElement( 'br' );
range.deleteContents();
range.insertNode( lineBreak );
// A text node is required by Gecko only to make the cursor blink.
// We need some text inside of it, so the bogus <br> is properly
// created.
if ( !CKEDITOR.env.ie )
doc.createText( '\ufeff' ).insertAfter( lineBreak );
// If we are at the end of a block, we must be sure the bogus node is available in that block.
if ( isEndOfBlock && !CKEDITOR.env.ie )
lineBreak.getParent().appendBogus();
// Now we can remove the text node contents, so the caret doesn't
// stop on it.
if ( !CKEDITOR.env.ie )
lineBreak.getNext().$.nodeValue = '';
// IE has different behavior regarding position.
if ( CKEDITOR.env.ie )
range.setStartAt( lineBreak, CKEDITOR.POSITION_AFTER_END );
else
range.setStartAt( lineBreak.getNext(), CKEDITOR.POSITION_AFTER_START );
// Scroll into view, for non IE.
if ( !CKEDITOR.env.ie )
{
var dummy = null;
// BR is not positioned in Opera and Webkit.
if ( !CKEDITOR.env.gecko )
{
dummy = doc.createElement( 'span' );
// We need have some contents for Webkit to position it
// under parent node. ( #3681)
dummy.setHtml(' ');
}
else
dummy = doc.createElement( 'br' );
dummy.insertBefore( lineBreak.getNext() );
dummy.scrollIntoView();
dummy.remove();
}
}
// This collapse guarantees the cursor will be blinking.
range.collapse( true );
range.select( isPre );
}
};
var plugin = CKEDITOR.plugins.enterkey,
enterBr = plugin.enterBr,
enterBlock = plugin.enterBlock,
headerTagRegex = /^h[1-6]$/;
function shiftEnter( editor )
{
// On SHIFT+ENTER we want to enforce the mode to be respected, instead
// of cloning the current block. (#77)
return enter( editor, editor.config.shiftEnterMode, true );
}
function enter( editor, mode, forceMode )
{
forceMode = editor.config.forceEnterMode || forceMode;
// Only effective within document.
if ( editor.mode != 'wysiwyg' )
return false;
if ( !mode )
mode = editor.config.enterMode;
// Use setTimout so the keys get cancelled immediatelly.
setTimeout( function()
{
editor.fire( 'saveSnapshot' ); // Save undo step.
if ( mode == CKEDITOR.ENTER_BR || editor.getSelection().getStartElement().hasAscendant( 'pre', true ) )
enterBr( editor, mode, null, forceMode );
else
enterBlock( editor, mode, null, forceMode );
}, 0 );
return true;
}
function getRange( editor )
{
// Get the selection ranges.
var ranges = editor.getSelection().getRanges();
// Delete the contents of all ranges except the first one.
for ( var i = ranges.length - 1 ; i > 0 ; i-- )
{
ranges[ i ].deleteContents();
}
// Return the first range.
return ranges[ 0 ];
}
})();
;
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