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/*
Copyright (c) 2003-2009, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
/**
* @file Justify commands.
*/
(function()
{
var alignRemoveRegex = /(-moz-|-webkit-|start|auto)/i;
function getState( editor, path )
{
var firstBlock = path.block || path.blockLimit;
if ( !firstBlock || firstBlock.getName() == 'body' )
return CKEDITOR.TRISTATE_OFF;
var currentAlign = firstBlock.getComputedStyle( 'text-align' ).replace( alignRemoveRegex, '' );
if ( ( !currentAlign && this.isDefaultAlign ) || currentAlign == this.value )
return CKEDITOR.TRISTATE_ON;
return CKEDITOR.TRISTATE_OFF;
}
function onSelectionChange( evt )
{
var command = evt.editor.getCommand( this.name );
command.state = getState.call( this, evt.editor, evt.data.path );
command.fire( 'state' );
}
function justifyCommand( editor, name, value )
{
this.name = name;
this.value = value;
var contentDir = editor.config.contentsLangDirection;
this.isDefaultAlign = ( value == 'left' && contentDir == 'ltr' ) ||
( value == 'right' && contentDir == 'rtl' );
var classes = editor.config.justifyClasses;
if ( classes )
{
switch ( value )
{
case 'left' :
this.cssClassName = classes[0];
break;
case 'center' :
this.cssClassName = classes[1];
break;
case 'right' :
this.cssClassName = classes[2];
break;
case 'justify' :
this.cssClassName = classes[3];
break;
}
this.cssClassRegex = new RegExp( '(?:^|\\s+)(?:' + classes.join( '|' ) + ')(?=$|\\s)' );
}
}
justifyCommand.prototype = {
exec : function( editor )
{
var selection = editor.getSelection();
if ( !selection )
return;
var bookmarks = selection.createBookmarks(),
ranges = selection.getRanges();
var cssClassName = this.cssClassName,
iterator,
block;
for ( var i = ranges.length - 1 ; i >= 0 ; i-- )
{
iterator = ranges[ i ].createIterator();
while ( ( block = iterator.getNextParagraph() ) )
{
block.removeAttribute( 'align' );
if ( cssClassName )
{
// Remove any of the alignment classes from the className.
var className = block.$.className =
CKEDITOR.tools.ltrim( block.$.className.replace( this.cssClassRegex, '' ) );
// Append the desired class name.
if ( this.state == CKEDITOR.TRISTATE_OFF && !this.isDefaultAlign )
block.addClass( cssClassName );
else if ( !className )
block.removeAttribute( 'class' );
}
else
{
if ( this.state == CKEDITOR.TRISTATE_OFF && !this.isDefaultAlign )
block.setStyle( 'text-align', this.value );
else
block.removeStyle( 'text-align' );
}
}
}
editor.focus();
editor.forceNextSelectionCheck();
selection.selectBookmarks( bookmarks );
}
};
CKEDITOR.plugins.add( 'justify',
{
init : function( editor )
{
var left = new justifyCommand( editor, 'justifyleft', 'left' ),
center = new justifyCommand( editor, 'justifycenter', 'center' ),
right = new justifyCommand( editor, 'justifyright', 'right' ),
justify = new justifyCommand( editor, 'justifyblock', 'justify' );
editor.addCommand( 'justifyleft', left );
editor.addCommand( 'justifycenter', center );
editor.addCommand( 'justifyright', right );
editor.addCommand( 'justifyblock', justify );
editor.ui.addButton( 'JustifyLeft',
{
label : editor.lang.justify.left,
command : 'justifyleft'
} );
editor.ui.addButton( 'JustifyCenter',
{
label : editor.lang.justify.center,
command : 'justifycenter'
} );
editor.ui.addButton( 'JustifyRight',
{
label : editor.lang.justify.right,
command : 'justifyright'
} );
editor.ui.addButton( 'JustifyBlock',
{
label : editor.lang.justify.block,
command : 'justifyblock'
} );
editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, left ) );
editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, right ) );
editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, center ) );
editor.on( 'selectionChange', CKEDITOR.tools.bind( onSelectionChange, justify ) );
},
requires : [ 'domiterator' ]
});
})();
CKEDITOR.tools.extend( CKEDITOR.config,
{
justifyClasses : null
} );
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