/*
Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
/**
* @file Increse and decrease indent commands.
*/
(function()
{
var listNodeNames = { ol : 1, ul : 1 };
function setState( editor, state )
{
editor.getCommand( this.name ).setState( state );
}
function onSelectionChange( evt )
{
var elements = evt.data.path.elements,
listNode, listItem,
editor = evt.editor;
for ( var i = 0 ; i < elements.length ; i++ )
{
if ( elements[i].getName() == 'li' )
{
listItem = elements[i];
continue;
}
if ( listNodeNames[ elements[i].getName() ] )
{
listNode = elements[i];
break;
}
}
if ( listNode )
{
if ( this.name == 'outdent' )
return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
else
{
while ( listItem && ( listItem = listItem.getPrevious( CKEDITOR.dom.walker.whitespaces( true ) ) ) )
{
if ( listItem.getName && listItem.getName() == 'li' )
return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
}
return setState.call( this, editor, CKEDITOR.TRISTATE_DISABLED );
}
}
if ( !this.useIndentClasses && this.name == 'indent' )
return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
var path = evt.data.path,
firstBlock = path.block || path.blockLimit;
if ( !firstBlock )
return setState.call( this, editor, CKEDITOR.TRISTATE_DISABLED );
if ( this.useIndentClasses )
{
var indentClass = firstBlock.$.className.match( this.classNameRegex ),
indentStep = 0;
if ( indentClass )
{
indentClass = indentClass[1];
indentStep = this.indentClassMap[ indentClass ];
}
if ( ( this.name == 'outdent' && !indentStep ) ||
( this.name == 'indent' && indentStep == editor.config.indentClasses.length ) )
return setState.call( this, editor, CKEDITOR.TRISTATE_DISABLED );
return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
}
else
{
var indent = parseInt( firstBlock.getStyle( this.indentCssProperty ), 10 );
if ( isNaN( indent ) )
indent = 0;
if ( indent <= 0 )
return setState.call( this, editor, CKEDITOR.TRISTATE_DISABLED );
return setState.call( this, editor, CKEDITOR.TRISTATE_OFF );
}
}
function indentList( editor, range, listNode )
{
// Our starting and ending points of the range might be inside some blocks under a list item...
// So before playing with the iterator, we need to expand the block to include the list items.
var startContainer = range.startContainer,
endContainer = range.endContainer;
while ( startContainer && !startContainer.getParent().equals( listNode ) )
startContainer = startContainer.getParent();
while ( endContainer && !endContainer.getParent().equals( listNode ) )
endContainer = endContainer.getParent();
if ( !startContainer || !endContainer )
return;
// Now we can iterate over the individual items on the same tree depth.
var block = startContainer,
itemsToMove = [],
stopFlag = false;
while ( !stopFlag )
{
if ( block.equals( endContainer ) )
stopFlag = true;
itemsToMove.push( block );
block = block.getNext();
}
if ( itemsToMove.length < 1 )
return;
// Do indent or outdent operations on the array model of the list, not the
// list's DOM tree itself. The array model demands that it knows as much as
// possible about the surrounding lists, we need to feed it the further
// ancestor node that is still a list.
var listParents = listNode.getParents( true );
for ( var i = 0 ; i < listParents.length ; i++ )
{
if ( listParents[i].getName && listNodeNames[ listParents[i].getName() ] )
{
listNode = listParents[i];
break;
}
}
var indentOffset = this.name == 'indent' ? 1 : -1,
startItem = itemsToMove[0],
lastItem = itemsToMove[ itemsToMove.length - 1 ],
database = {};
// Convert the list DOM tree into a one dimensional array.
var listArray = CKEDITOR.plugins.list.listToArray( listNode, database );
// Apply indenting or outdenting on the array.
var baseIndent = listArray[ lastItem.getCustomData( 'listarray_index' ) ].indent;
for ( i = startItem.getCustomData( 'listarray_index' ); i <= lastItem.getCustomData( 'listarray_index' ); i++ )
{
listArray[ i ].indent += indentOffset;
// Make sure the newly created sublist get a brand-new element of the same type. (#5372)
var listRoot = listArray[ i ].parent;
listArray[ i ].parent = new CKEDITOR.dom.element( listRoot.getName(), listRoot.getDocument() );
}
for ( i = lastItem.getCustomData( 'listarray_index' ) + 1 ;
i < listArray.length && listArray[i].indent > baseIndent ; i++ )
listArray[i].indent += indentOffset;
// Convert the array back to a DOM forest (yes we might have a few subtrees now).
// And replace the old list with the new forest.
var newList = CKEDITOR.plugins.list.arrayToList( listArray, database, null, editor.config.enterMode, 0 );
// Avoid nested <li> after outdent even they're visually same,
// recording them for later refactoring.(#3982)
if ( this.name == 'outdent' )
{
var parentLiElement;
if ( ( parentLiElement = listNode.getParent() ) && parentLiElement.is( 'li' ) )
{
var children = newList.listNode.getChildren(),
pendingLis = [],
count = children.count(),
child;
for ( i = count - 1 ; i >= 0 ; i-- )
{
if ( ( child = children.getItem( i ) ) && child.is && child.is( 'li' ) )
pendingLis.push( child );
}
}
}
if ( newList )
newList.listNode.replace( listNode );
// Move the nested <li> to be appeared after the parent.
if ( pendingLis && pendingLis.length )
{
for ( i = 0; i < pendingLis.length ; i++ )
{
var li = pendingLis[ i ],
followingList = li;
// Nest preceding <ul>/<ol> inside current <li> if any.
while ( ( followingList = followingList.getNext() ) &&
followingList.is &&
followingList.getName() in listNodeNames )
{
li.append( followingList );
}
li.insertAfter( parentLiElement );
}
}
// Clean up the markers.
CKEDITOR.dom.element.clearAllMarkers( database );
}
function indentBlock( editor, range )
{
var iterator = range.createIterator(),
enterMode = editor.config.enterMode;
iterator.enforceRealBlocks = true;
iterator.enlargeBr = enterMode != CKEDITOR.ENTER_BR;
var block;
while ( ( block = iterator.getNextParagraph() ) )
{
if ( this.useIndentClasses )
{
// Transform current class name to indent step index.
var indentClass = block.$.className.match( this.classNameRegex ),
indentStep = 0;
if ( indentClass )
{
indentClass = indentClass[1];
indentStep = this.indentClassMap[ indentClass ];
}
// Operate on indent step index, transform indent step index back to class
// name.
if ( this.name == 'outdent' )
indentStep--;
else
indentStep++;
indentStep = Math.min( indentStep, editor.config.indentClasses.length );
indentStep = Math.max( indentStep, 0 );
var className = CKEDITOR.tools.ltrim( block.$.className.replace( this.classNameRegex, '' ) );
if ( indentStep < 1 )
block.$.className = className;
else
block.$.className = CKEDITOR.tools.ltrim( className + ' ' + editor.config.indentClasses[ indentStep - 1 ] );
}
else
{
var currentOffset = parseInt( block.getStyle( this.indentCssProperty ), 10 );
if ( isNaN( currentOffset ) )
currentOffset = 0;
currentOffset += ( this.name == 'indent' ? 1 : -1 ) * editor.config.indentOffset;
currentOffset = Math.max( currentOffset, 0 );
currentOffset = Math.ceil( currentOffset / editor.config.indentOffset ) * editor.config.indentOffset;
block.setStyle( this.indentCssProperty, currentOffset ? currentOffset + editor.config.indentUnit : '' );
if ( block.getAttribute( 'style' ) === '' )
block.removeAttribute( 'style' );
}
}
}
function indentCommand( editor, name )
{
this.name = name;
this.useIndentClasses = editor.config.indentClasses && editor.config.indentClasses.length > 0;
if ( this.useIndentClasses )
{
this.classNameRegex = new RegExp( '(?:^|\\s+)(' + editor.config.indentClasses.join( '|' ) + ')(?=$|\\s)' );
this.indentClassMap = {};
for ( var i = 0 ; i < editor.config.indentClasses.length ; i++ )
this.indentClassMap[ editor.config.indentClasses[i] ] = i + 1;
}
else
this.indentCssProperty = editor.config.contentsLangDirection == 'ltr' ? 'margin-left' : 'margin-right';
this.startDisabled = name == 'outdent';
}
indentCommand.prototype = {
exec : function( editor )
{
var selection = editor.getSelection(),
range = selection && selection.getRanges()[0];
if ( !selection || !range )
return;
var bookmarks = selection.createBookmarks( true ),
nearestListBlock = range.getCommonAncestor();
while ( nearestListBlock && !( nearestListBlock.type == CKEDITOR.NODE_ELEMENT &&
listNodeNames[ nearestListBlock.getName() ] ) )
nearestListBlock = nearestListBlock.getParent();
if ( nearestListBlock )
indentList.call( this, editor, range, nearestListBlock );
else
indentBlock.call( this, editor, range );
editor.focus();
editor.forceNextSelectionCheck();
selection.selectBookmarks( bookmarks );
}
};
CKEDITOR.plugins.add( 'indent',
{
init : function( editor )
{
// Register commands.
var indent = new indentCommand( editor, 'indent' ),
outdent = new indentCommand( editor, 'outdent' );
editor.addCommand( 'indent', indent );
editor.addCommand( 'outdent', outdent );
// Register the toolbar buttons.
editor.ui.addButton( 'Indent',
{
label : editor.lang.indent,
command : 'indent'
});
editor.ui.addButton( 'Outdent',
{
label : editor.lang.outdent,
command : 'outdent'
});
// Register the state changing handlers.
editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, indent ) );
editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, outdent ) );
},
requires : [ 'domiterator', 'list' ]
} );
})();
CKEDITOR.tools.extend( CKEDITOR.config,
{
indentOffset : 40,
indentUnit : 'px',
indentClasses : null
});
/**
* Size of each indentation step
* @type Number
* @example
* config.indentOffset = 40;
*/
/**
* Unit for the indentation style
* @type String
* @example
* config.indentUnit = 'px';
*/
/**
* List of classes to use for indenting the contents.
* @type Array
* @example
* // Don't use classes for indenting. (this is the default value)
* config.indentClasses = null;
* @example
* // Use the classes 'Indent1', 'Indent2', 'Indent3'
* config.indentClasses = ['Indent1', 'Indent2', 'Indent3'];
*/
/**
* Size of each indentation step
* @type Number
* @default 40
* @example
* config.indentOffset = 4;
*/
/**
* Unit for the indentation style
* @type String
* @default 'px'
* @example
* config.indentUnit = 'em';
*/
/**
* List of classes to use for indenting the contents. If it's null, no classes will be used
* and instead the {@link #indentUnit} and {@link #indentOffset} properties will be used.
* @type Array
* default null
* @example
* // Use the classes 'Indent1', 'Indent2', 'Indent3'
* config.indentClasses = ['Indent1', 'Indent2', 'Indent3'];
*/
;
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