ckeditor/_source/plugins/pastefromword/plugin.js

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/*
Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
(function()
{
	function forceHtmlMode( evt ) { evt.data.mode = 'html'; }

	CKEDITOR.plugins.add( 'pastefromword',
	{
		init : function( editor )
		{

			// Flag indicate this command is actually been asked instead of a generic
			// pasting.
			var forceFromWord = 0;
			var resetFromWord = function( evt )
				{
					evt && evt.removeListener();
					editor.removeListener( 'beforePaste', forceHtmlMode );
					forceFromWord && setTimeout( function() { forceFromWord = 0; }, 0 );
				};

			// Features bring by this command beside the normal process:
			// 1. No more bothering of user about the clean-up.
			// 2. Perform the clean-up even if content is not from MS-Word.
			// (e.g. from a MS-Word similar application.)
			editor.addCommand( 'pastefromword',
			{
				canUndo : false,
				exec : function()
				{
					// Ensure the received data format is HTML and apply content filtering. (#6718)
					forceFromWord = 1;
					editor.on( 'beforePaste', forceHtmlMode );

					if ( editor.execCommand( 'paste', 'html' ) === false )
					{
						editor.on( 'dialogShow', function ( evt )
						{
							evt.removeListener();
							evt.data.on( 'cancel', resetFromWord );
						});

						editor.on( 'dialogHide', function( evt )
						{
							evt.data.removeListener( 'cancel', resetFromWord );
						} );
					}

					editor.on( 'afterPaste', resetFromWord );
				}
			});

			// Register the toolbar button.
			editor.ui.addButton( 'PasteFromWord',
				{
					label : editor.lang.pastefromword.toolbar,
					command : 'pastefromword'
				});