[perso/Immae/Projets/packagist/connexionswing-ckeditor-component.git] / sources / plugins / clipboard / plugin.js

/**\r
 * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.\r
 * For licensing, see LICENSE.md or http://ckeditor.com/license\r
 */\r
\r
/**\r
 * @ignore\r
 * File overview: Clipboard support.\r
 */\r
\r
//\r
// COPY & PASTE EXECUTION FLOWS:\r
// -- CTRL+C\r
//		* if ( isCustomCopyCutSupported )\r
//			* dataTransfer.setData( 'text/html', getSelectedHtml )\r
//		* else\r
//			* browser's default behavior\r
// -- CTRL+X\r
//		* listen onKey (onkeydown)\r
//		* fire 'saveSnapshot' on editor\r
//		* if ( isCustomCopyCutSupported )\r
//			* dataTransfer.setData( 'text/html', getSelectedHtml )\r
//			* extractSelectedHtml // remove selected contents\r
//		* else\r
//			* browser's default behavior\r
//		* deferred second 'saveSnapshot' event\r
// -- CTRL+V\r
//		* listen onKey (onkeydown)\r
//		* simulate 'beforepaste' for non-IEs on editable\r
//		* listen 'onpaste' on editable ('onbeforepaste' for IE)\r
//		* fire 'beforePaste' on editor\r
//		* if ( !canceled && ( htmlInDataTransfer || !external paste) && dataTransfer is not empty ) getClipboardDataByPastebin\r
//		* fire 'paste' on editor\r
//		* !canceled && fire 'afterPaste' on editor\r
// -- Copy command\r
//		* tryToCutCopy\r
//			* execCommand\r
//		* !success && notification\r
// -- Cut command\r
//		* fixCut\r
//		* tryToCutCopy\r
//			* execCommand\r
//		* !success && notification\r
// -- Paste command\r
//		* fire 'paste' on editable ('beforepaste' for IE)\r
//		* !canceled && execCommand 'paste'\r
//		* !success && fire 'pasteDialog' on editor\r
// -- Paste from native context menu & menubar\r
//		(Fx & Webkits are handled in 'paste' default listener.\r
//		Opera cannot be handled at all because it doesn't fire any events\r
//		Special treatment is needed for IE, for which is this part of doc)\r
//		* listen 'onpaste'\r
//		* cancel native event\r
//		* fire 'beforePaste' on editor\r
//		* if ( !canceled && ( htmlInDataTransfer || !external paste) && dataTransfer is not empty ) getClipboardDataByPastebin\r
//		* execIECommand( 'paste' ) -> this fires another 'paste' event, so cancel it\r
//		* fire 'paste' on editor\r
//		* !canceled && fire 'afterPaste' on editor\r
//\r
//\r
// PASTE EVENT - PREPROCESSING:\r
// -- Possible dataValue types: auto, text, html.\r
// -- Possible dataValue contents:\r
//		* text (possible \n\r)\r
//		* htmlified text (text + br,div,p - no presentational markup & attrs - depends on browser)\r
//		* html\r
// -- Possible flags:\r
//		* htmlified - if true then content is a HTML even if no markup inside. This flag is set\r
//			for content from editable pastebins, because they 'htmlify' pasted content.\r
//\r
// -- Type: auto:\r
//		* content: htmlified text ->	filter, unify text markup (brs, ps, divs), set type: text\r
//		* content: html ->				filter, set type: html\r
// -- Type: text:\r
//		* content: htmlified text ->	filter, unify text markup\r
//		* content: html ->				filter, strip presentational markup, unify text markup\r
// -- Type: html:\r
//		* content: htmlified text ->	filter, unify text markup\r
//		* content: html ->				filter\r
//\r
// -- Phases:\r
//		* if dataValue is empty copy data from dataTransfer to dataValue (priority 1)\r
//		* filtering (priorities 3-5) - e.g. pastefromword filters\r
//		* content type sniffing (priority 6)\r
//		* markup transformations for text (priority 6)\r
//\r
// DRAG & DROP EXECUTION FLOWS:\r
// -- Drag\r
//		* save to the global object:\r
//			* drag timestamp (with 'cke-' prefix),\r
//			* selected html,\r
//			* drag range,\r
//			* editor instance.\r
//		* put drag timestamp into event.dataTransfer.text\r
// -- Drop\r
//		* if events text == saved timestamp && editor == saved editor\r
//			internal drag & drop occurred\r
//			* getRangeAtDropPosition\r
//			* create bookmarks for drag and drop ranges starting from the end of the document\r
//			* dragRange.deleteContents()\r
//			* fire 'paste' with saved html and drop range\r
//		* if events text == saved timestamp && editor != saved editor\r
//			cross editor drag & drop occurred\r
//			* getRangeAtDropPosition\r
//			* fire 'paste' with saved html\r
//			* dragRange.deleteContents()\r
//			* FF: refreshCursor on afterPaste\r
//		* if events text != saved timestamp\r
//			drop form external source occurred\r
//			* getRangeAtDropPosition\r
//			* if event contains html data then fire 'paste' with html\r
//			* else if event contains text data then fire 'paste' with encoded text\r
//			* FF: refreshCursor on afterPaste\r
\r
'use strict';\r
\r
( function() {\r
	// Register the plugin.\r
	CKEDITOR.plugins.add( 'clipboard', {\r
		requires: 'dialog',\r
		// jscs:disable maximumLineLength\r
		lang: 'af,ar,bg,bn,bs,ca,cs,cy,da,de,de-ch,el,en,en-au,en-ca,en-gb,eo,es,et,eu,fa,fi,fo,fr,fr-ca,gl,gu,he,hi,hr,hu,id,is,it,ja,ka,km,ko,ku,lt,lv,mk,mn,ms,nb,nl,no,pl,pt,pt-br,ro,ru,si,sk,sl,sq,sr,sr-latn,sv,th,tr,tt,ug,uk,vi,zh,zh-cn', // %REMOVE_LINE_CORE%\r
		// jscs:enable maximumLineLength\r
		icons: 'copy,copy-rtl,cut,cut-rtl,paste,paste-rtl', // %REMOVE_LINE_CORE%\r
		hidpi: true, // %REMOVE_LINE_CORE%\r
		init: function( editor ) {\r
			var filterType,\r
				filtersFactory = filtersFactoryFactory();\r
\r
			if ( editor.config.forcePasteAsPlainText ) {\r
				filterType = 'plain-text';\r
			} else if ( editor.config.pasteFilter ) {\r
				filterType = editor.config.pasteFilter;\r
			}\r
			// On Webkit the pasteFilter defaults 'semantic-content' because pasted data is so terrible\r
			// that it must be always filtered.\r
			else if ( CKEDITOR.env.webkit && !( 'pasteFilter' in editor.config ) ) {\r
				filterType = 'semantic-content';\r
			}\r
\r
			editor.pasteFilter = filtersFactory.get( filterType );\r
\r
			initPasteClipboard( editor );\r
			initDragDrop( editor );\r
\r
			CKEDITOR.dialog.add( 'paste', CKEDITOR.getUrl( this.path + 'dialogs/paste.js' ) );\r
\r
			editor.on( 'paste', function( evt ) {\r
				// Init `dataTransfer` if `paste` event was fired without it, so it will be always available.\r
				if ( !evt.data.dataTransfer ) {\r
					evt.data.dataTransfer = new CKEDITOR.plugins.clipboard.dataTransfer();\r
				}\r
\r
				// If dataValue is already set (manually or by paste bin), so do not override it.\r
				if ( evt.data.dataValue ) {\r
					return;\r
				}\r
\r
				var dataTransfer = evt.data.dataTransfer,\r
					// IE support only text data and throws exception if we try to get html data.\r
					// This html data object may also be empty if we drag content of the textarea.\r
					value = dataTransfer.getData( 'text/html' );\r
\r
				if ( value ) {\r
					evt.data.dataValue = value;\r
					evt.data.type = 'html';\r
				} else {\r
					// Try to get text data otherwise.\r
					value = dataTransfer.getData( 'text/plain' );\r
\r
					if ( value ) {\r
						evt.data.dataValue = editor.editable().transformPlainTextToHtml( value );\r
						evt.data.type = 'text';\r
					}\r
				}\r
			}, null, null, 1 );\r
\r
			editor.on( 'paste', function( evt ) {\r
				var data = evt.data.dataValue,\r
					blockElements = CKEDITOR.dtd.$block;\r
\r
				// Filter webkit garbage.\r
				if ( data.indexOf( 'Apple-' ) > -1 ) {\r
					// Replace special webkit's &nbsp; with simple space, because webkit\r
					// produces them even for normal spaces.\r
					data = data.replace( /<span class="Apple-converted-space">&nbsp;<\/span>/gi, ' ' );\r
\r
					// Strip <span> around white-spaces when not in forced 'html' content type.\r
					// This spans are created only when pasting plain text into Webkit,\r
					// but for safety reasons remove them always.\r
					if ( evt.data.type != 'html' ) {\r
						data = data.replace( /<span class="Apple-tab-span"[^>]*>([^<]*)<\/span>/gi, function( all, spaces ) {\r
							// Replace tabs with 4 spaces like Fx does.\r
							return spaces.replace( /\t/g, '&nbsp;&nbsp; &nbsp;' );\r
						} );\r
					}\r
\r
					// This br is produced only when copying & pasting HTML content.\r
					if ( data.indexOf( '<br class="Apple-interchange-newline">' ) > -1 ) {\r
						evt.data.startsWithEOL = 1;\r
						evt.data.preSniffing = 'html'; // Mark as not text.\r
						data = data.replace( /<br class="Apple-interchange-newline">/, '' );\r
					}\r
\r
					// Remove all other classes.\r
					data = data.replace( /(<[^>]+) class="Apple-[^"]*"/gi, '$1' );\r
				}\r
\r
				// Strip editable that was copied from inside. (#9534)\r
				if ( data.match( /^<[^<]+cke_(editable|contents)/i ) ) {\r
					var tmp,\r
						editable_wrapper,\r
						wrapper = new CKEDITOR.dom.element( 'div' );\r
\r
					wrapper.setHtml( data );\r
					// Verify for sure and check for nested editor UI parts. (#9675)\r
					while ( wrapper.getChildCount() == 1 &&\r
							( tmp = wrapper.getFirst() ) &&\r
							tmp.type == CKEDITOR.NODE_ELEMENT &&	// Make sure first-child is element.\r
							( tmp.hasClass( 'cke_editable' ) || tmp.hasClass( 'cke_contents' ) ) ) {\r
						wrapper = editable_wrapper = tmp;\r
					}\r
\r
					// If editable wrapper was found strip it and bogus <br> (added on FF).\r
					if ( editable_wrapper )\r
						data = editable_wrapper.getHtml().replace( /<br>$/i, '' );\r
				}\r
\r
				if ( CKEDITOR.env.ie ) {\r
					// &nbsp; <p> -> <p> (br.cke-pasted-remove will be removed later)\r
					data = data.replace( /^&nbsp;(?: |\r\n)?<(\w+)/g, function( match, elementName ) {\r
						if ( elementName.toLowerCase() in blockElements ) {\r
							evt.data.preSniffing = 'html'; // Mark as not a text.\r
							return '<' + elementName;\r
						}\r
						return match;\r
					} );\r
				} else if ( CKEDITOR.env.webkit ) {\r
					// </p><div><br></div> -> </p><br>\r
					// We don't mark br, because this situation can happen for htmlified text too.\r
					data = data.replace( /<\/(\w+)><div><br><\/div>$/, function( match, elementName ) {\r
						if ( elementName in blockElements ) {\r
							evt.data.endsWithEOL = 1;\r
							return '</' + elementName + '>';\r
						}\r
						return match;\r
					} );\r
				} else if ( CKEDITOR.env.gecko ) {\r
					// Firefox adds bogus <br> when user pasted text followed by space(s).\r
					data = data.replace( /(\s)<br>$/, '$1' );\r
				}\r
\r
				evt.data.dataValue = data;\r
			}, null, null, 3 );\r
\r
			editor.on( 'paste', function( evt ) {\r
				var dataObj = evt.data,\r
					type = dataObj.type,\r
					data = dataObj.dataValue,\r
					trueType,\r
					// Default is 'html'.\r
					defaultType = editor.config.clipboard_defaultContentType || 'html',\r
					transferType = dataObj.dataTransfer.getTransferType( editor );\r
\r
				// If forced type is 'html' we don't need to know true data type.\r
				if ( type == 'html' || dataObj.preSniffing == 'html' ) {\r
					trueType = 'html';\r
				} else {\r
					trueType = recogniseContentType( data );\r
				}\r
\r
				// Unify text markup.\r
				if ( trueType == 'htmlifiedtext' ) {\r
					data = htmlifiedTextHtmlification( editor.config, data );\r
				}\r
\r
				// Strip presentational markup & unify text markup.\r
				// Forced plain text (dialog or forcePAPT).\r
				// Note: we do not check dontFilter option in this case, because forcePAPT was implemented\r
				// before pasteFilter and pasteFilter is automatically used on Webkit&Blink since 4.5, so\r
				// forcePAPT should have priority as it had before 4.5.\r
				if ( type == 'text' && trueType == 'html' ) {\r
					data = filterContent( editor, data, filtersFactory.get( 'plain-text' ) );\r
				}\r
				// External paste and pasteFilter exists and filtering isn't disabled.\r
				else if ( transferType == CKEDITOR.DATA_TRANSFER_EXTERNAL && editor.pasteFilter && !dataObj.dontFilter ) {\r
					data = filterContent( editor, data, editor.pasteFilter );\r
				}\r
\r
				if ( dataObj.startsWithEOL ) {\r
					data = '<br data-cke-eol="1">' + data;\r
				}\r
				if ( dataObj.endsWithEOL ) {\r
					data += '<br data-cke-eol="1">';\r
				}\r
\r
				if ( type == 'auto' ) {\r
					type = ( trueType == 'html' || defaultType == 'html' ) ? 'html' : 'text';\r
				}\r
\r
				dataObj.type = type;\r
				dataObj.dataValue = data;\r
				delete dataObj.preSniffing;\r
				delete dataObj.startsWithEOL;\r
				delete dataObj.endsWithEOL;\r
			}, null, null, 6 );\r
\r
			// Inserts processed data into the editor at the end of the\r
			// events chain.\r
			editor.on( 'paste', function( evt ) {\r
				var data = evt.data;\r
\r
				if ( data.dataValue ) {\r
					editor.insertHtml( data.dataValue, data.type, data.range );\r
\r
					// Defer 'afterPaste' so all other listeners for 'paste' will be fired first.\r
					// Fire afterPaste only if paste inserted some HTML.\r
					setTimeout( function() {\r
						editor.fire( 'afterPaste' );\r
					}, 0 );\r
				}\r
			}, null, null, 1000 );\r
\r
			editor.on( 'pasteDialog', function( evt ) {\r
				// TODO it's possible that this setTimeout is not needed any more,\r
				// because of changes introduced in the same commit as this comment.\r
				// Editor.getClipboardData adds listener to the dialog's events which are\r
				// fired after a while (not like 'showDialog').\r
				setTimeout( function() {\r
					// Open default paste dialog.\r
					editor.openDialog( 'paste', evt.data );\r
				}, 0 );\r
			} );\r
		}\r
	} );\r
\r
	function firePasteEvents( editor, data, withBeforePaste ) {\r
		if ( !data.type ) {\r
			data.type = 'auto';\r
		}\r
\r
		if ( withBeforePaste ) {\r
			// Fire 'beforePaste' event so clipboard flavor get customized\r
			// by other plugins.\r
			if ( editor.fire( 'beforePaste', data ) === false )\r
				return false; // Event canceled\r
		}\r
\r
		// Do not fire paste if there is no data (dataValue and dataTranfser are empty).\r
		// This check should be done after firing 'beforePaste' because for native paste\r
		// 'beforePaste' is by default fired even for empty clipboard.\r
		if ( !data.dataValue && data.dataTransfer.isEmpty() ) {\r
			return false;\r
		}\r
\r
		if ( !data.dataValue ) {\r
			data.dataValue = '';\r
		}\r
\r
		// Because of FF bug we need to use this hack, otherwise cursor is hidden\r
		// or it is not possible to move it (#12420).\r
		// Also, check that editor.toolbox exists, because the toolbar plugin might not be loaded (#13305).\r
		if ( CKEDITOR.env.gecko && data.method == 'drop' && editor.toolbox ) {\r
			editor.once( 'afterPaste', function() {\r
				editor.toolbox.focus();\r
			} );\r
		}\r
\r
		return editor.fire( 'paste', data );\r
	}\r
\r
	function initPasteClipboard( editor ) {\r
		var clipboard = CKEDITOR.plugins.clipboard,\r
			preventBeforePasteEvent = 0,\r
			preventPasteEvent = 0,\r
			inReadOnly = 0;\r
\r
		addListeners();\r
		addButtonsCommands();\r
\r
		/**\r
		 * Gets clipboard data by directly accessing the clipboard (IE only) or opening the paste dialog window.\r
		 *\r
		 *		editor.getClipboardData( { title: 'Get my data' }, function( data ) {\r
		 *			if ( data )\r
		 *				alert( data.type + ' ' + data.dataValue );\r
		 *		} );\r
		 *\r
		 * @member CKEDITOR.editor\r
		 * @param {Object} options\r
		 * @param {String} [options.title] The title of the paste dialog window.\r
		 * @param {Function} callback A function that will be executed with `data.type` and `data.dataValue`\r
		 * or `null` if none of the capturing methods succeeded.\r
		 */\r
		editor.getClipboardData = function( options, callback ) {\r
			var beforePasteNotCanceled = false,\r
				dataType = 'auto',\r
				dialogCommited = false;\r
\r
			// Options are optional - args shift.\r
			if ( !callback ) {\r
				callback = options;\r
				options = null;\r
			}\r
\r
			// Listen with maximum priority to handle content before everyone else.\r
			// This callback will handle paste event that will be fired if direct\r
			// access to the clipboard succeed in IE.\r
			editor.on( 'paste', onPaste, null, null, 0 );\r
\r
			// Listen at the end of listeners chain to see if event wasn't canceled\r
			// and to retrieve modified data.type.\r
			editor.on( 'beforePaste', onBeforePaste, null, null, 1000 );\r
\r
			// getClipboardDataDirectly() will fire 'beforePaste' synchronously, so we can\r
			// check if it was canceled and if any listener modified data.type.\r
\r
			// If command didn't succeed (only IE allows to access clipboard and only if\r
			// user agrees) open and handle paste dialog.\r
			if ( getClipboardDataDirectly() === false ) {\r
				// Direct access to the clipboard wasn't successful so remove listener.\r
				editor.removeListener( 'paste', onPaste );\r
\r
				// If beforePaste was canceled do not open dialog.\r
				// Add listeners only if dialog really opened. 'pasteDialog' can be canceled.\r
				if ( beforePasteNotCanceled && editor.fire( 'pasteDialog', onDialogOpen ) ) {\r
					editor.on( 'pasteDialogCommit', onDialogCommit );\r
\r
					// 'dialogHide' will be fired after 'pasteDialogCommit'.\r
					editor.on( 'dialogHide', function( evt ) {\r
						evt.removeListener();\r
						evt.data.removeListener( 'pasteDialogCommit', onDialogCommit );\r
\r
						// Because Opera has to wait a while in pasteDialog we have to wait here.\r
						setTimeout( function() {\r
							// Notify even if user canceled dialog (clicked 'cancel', ESC, etc).\r
							if ( !dialogCommited )\r
								callback( null );\r
						}, 10 );\r
					} );\r
				} else {\r
					callback( null );\r
				}\r
			}\r
\r
			function onPaste( evt ) {\r
				evt.removeListener();\r
				evt.cancel();\r
				callback( evt.data );\r
			}\r
\r
			function onBeforePaste( evt ) {\r
				evt.removeListener();\r
				beforePasteNotCanceled = true;\r
				dataType = evt.data.type;\r
			}\r
\r
			function onDialogCommit( evt ) {\r
				evt.removeListener();\r
				// Cancel pasteDialogCommit so paste dialog won't automatically fire\r
				// 'paste' evt by itself.\r
				evt.cancel();\r
				dialogCommited = true;\r
				callback( {\r
					type: dataType,\r
					dataValue: evt.data.dataValue,\r
					dataTransfer: evt.data.dataTransfer,\r
					method: 'paste'\r
				} );\r
			}\r
\r
			function onDialogOpen() {\r
				this.customTitle = ( options && options.title );\r
			}\r
		};\r
\r
		function addButtonsCommands() {\r
			addButtonCommand( 'Cut', 'cut', createCutCopyCmd( 'cut' ), 10, 1 );\r
			addButtonCommand( 'Copy', 'copy', createCutCopyCmd( 'copy' ), 20, 4 );\r
			addButtonCommand( 'Paste', 'paste', createPasteCmd(), 30, 8 );\r
\r
			function addButtonCommand( buttonName, commandName, command, toolbarOrder, ctxMenuOrder ) {\r
				var lang = editor.lang.clipboard[ commandName ];\r
\r
				editor.addCommand( commandName, command );\r
				editor.ui.addButton && editor.ui.addButton( buttonName, {\r
					label: lang,\r
					command: commandName,\r
					toolbar: 'clipboard,' + toolbarOrder\r
				} );\r
\r
				// If the "menu" plugin is loaded, register the menu item.\r
				if ( editor.addMenuItems ) {\r
					editor.addMenuItem( commandName, {\r
						label: lang,\r
						command: commandName,\r
						group: 'clipboard',\r
						order: ctxMenuOrder\r
					} );\r
				}\r
			}\r
		}\r
\r
		function addListeners() {\r
			editor.on( 'key', onKey );\r
			editor.on( 'contentDom', addPasteListenersToEditable );\r
\r
			// For improved performance, we're checking the readOnly state on selectionChange instead of hooking a key event for that.\r
			editor.on( 'selectionChange', function( evt ) {\r
				inReadOnly = evt.data.selection.getRanges()[ 0 ].checkReadOnly();\r
				setToolbarStates();\r
			} );\r
\r
			// If the "contextmenu" plugin is loaded, register the listeners.\r
			if ( editor.contextMenu ) {\r
				editor.contextMenu.addListener( function( element, selection ) {\r
					inReadOnly = selection.getRanges()[ 0 ].checkReadOnly();\r
					return {\r
						cut: stateFromNamedCommand( 'cut' ),\r
						copy: stateFromNamedCommand( 'copy' ),\r
						paste: stateFromNamedCommand( 'paste' )\r
					};\r
				} );\r
			}\r
		}\r
\r
		// Add events listeners to editable.\r
		function addPasteListenersToEditable() {\r
			var editable = editor.editable();\r
\r
			if ( CKEDITOR.plugins.clipboard.isCustomCopyCutSupported ) {\r
				var initOnCopyCut = function( evt ) {\r
					// If user tries to cut in read-only editor, we must prevent default action. (#13872)\r
					if ( !editor.readOnly || evt.name != 'cut' ) {\r
						clipboard.initPasteDataTransfer( evt, editor );\r
					}\r
					evt.data.preventDefault();\r
				};\r
\r
				editable.on( 'copy', initOnCopyCut );\r
				editable.on( 'cut', initOnCopyCut );\r
\r
				// Delete content with the low priority so one can overwrite cut data.\r
				editable.on( 'cut', function() {\r
					// If user tries to cut in read-only editor, we must prevent default action. (#13872)\r
					if ( !editor.readOnly ) {\r
						editor.extractSelectedHtml();\r
					}\r
				}, null, null, 999 );\r
			}\r
\r
			// We'll be catching all pasted content in one line, regardless of whether\r
			// it's introduced by a document command execution (e.g. toolbar buttons) or\r
			// user paste behaviors (e.g. CTRL+V).\r
			editable.on( clipboard.mainPasteEvent, function( evt ) {\r
				if ( clipboard.mainPasteEvent == 'beforepaste' && preventBeforePasteEvent ) {\r
					return;\r
				}\r
\r
				// If you've just asked yourself why preventPasteEventNow() is not here, but\r
				// in listener for CTRL+V and exec method of 'paste' command\r
				// you've asked the same question we did.\r
				//\r
				// THE ANSWER:\r
				//\r
				// First thing to notice - this answer makes sense only for IE,\r
				// because other browsers don't listen for 'paste' event.\r
				//\r
				// What would happen if we move preventPasteEventNow() here?\r
				// For:\r
				// * CTRL+V - IE fires 'beforepaste', so we prevent 'paste' and pasteDataFromClipboard(). OK.\r
				// * editor.execCommand( 'paste' ) - we fire 'beforepaste', so we prevent\r
				//		'paste' and pasteDataFromClipboard() and doc.execCommand( 'Paste' ). OK.\r
				// * native context menu - IE fires 'beforepaste', so we prevent 'paste', but unfortunately\r
				//		on IE we fail with pasteDataFromClipboard() here, because of... we don't know why, but\r
				//		we just fail, so... we paste nothing. FAIL.\r
				// * native menu bar - the same as for native context menu.\r
				//\r
				// But don't you know any way to distinguish first two cases from last two?\r
				// Only one - special flag set in CTRL+V handler and exec method of 'paste'\r
				// command. And that's what we did using preventPasteEventNow().\r
\r
				pasteDataFromClipboard( evt );\r
			} );\r
\r
			// It's not possible to clearly handle all four paste methods (ctrl+v, native menu bar\r
			// native context menu, editor's command) in one 'paste/beforepaste' event in IE.\r
			//\r
			// For ctrl+v & editor's command it's easy to handle pasting in 'beforepaste' listener,\r
			// so we do this. For another two methods it's better to use 'paste' event.\r
			//\r
			// 'paste' is always being fired after 'beforepaste' (except of weird one on opening native\r
			// context menu), so for two methods handled in 'beforepaste' we're canceling 'paste'\r
			// using preventPasteEvent state.\r
			//\r
			// 'paste' event in IE is being fired before getClipboardDataByPastebin executes its callback.\r
			//\r
			// QUESTION: Why didn't you handle all 4 paste methods in handler for 'paste'?\r
			//		Wouldn't this just be simpler?\r
			// ANSWER: Then we would have to evt.data.preventDefault() only for native\r
			//		context menu and menu bar pastes. The same with execIECommand().\r
			//		That would force us to mark CTRL+V and editor's paste command with\r
			//		special flag, other than preventPasteEvent. But we still would have to\r
			//		have preventPasteEvent for the second event fired by execIECommand.\r
			//		Code would be longer and not cleaner.\r
			if ( clipboard.mainPasteEvent == 'beforepaste' ) {\r
				editable.on( 'paste', function( evt ) {\r
					if ( preventPasteEvent ) {\r
						return;\r
					}\r
\r
					// Cancel next 'paste' event fired by execIECommand( 'paste' )\r
					// at the end of this callback.\r
					preventPasteEventNow();\r
\r
					// Prevent native paste.\r
					evt.data.preventDefault();\r
\r
					pasteDataFromClipboard( evt );\r
\r
					// Force IE to paste content into pastebin so pasteDataFromClipboard will work.\r
					if ( !execIECommand( 'paste' ) ) {\r
						editor.openDialog( 'paste' );\r
					}\r
				} );\r
\r
				// If mainPasteEvent is 'beforePaste' (IE before Edge),\r
				// dismiss the (wrong) 'beforepaste' event fired on context/toolbar menu open. (#7953)\r
				editable.on( 'contextmenu', preventBeforePasteEventNow, null, null, 0 );\r
\r
				editable.on( 'beforepaste', function( evt ) {\r
					// Do not prevent event on CTRL+V and SHIFT+INS because it blocks paste (#11970).\r
					if ( evt.data && !evt.data.$.ctrlKey && !evt.data.$.shiftKey )\r
						preventBeforePasteEventNow();\r
				}, null, null, 0 );\r
			}\r
\r
			editable.on( 'beforecut', function() {\r
				!preventBeforePasteEvent && fixCut( editor );\r
			} );\r
\r
			var mouseupTimeout;\r
\r
			// Use editor.document instead of editable in non-IEs for observing mouseup\r
			// since editable won't fire the event if selection process started within\r
			// iframe and ended out of the editor (#9851).\r
			editable.attachListener( CKEDITOR.env.ie ? editable : editor.document.getDocumentElement(), 'mouseup', function() {\r
				mouseupTimeout = setTimeout( function() {\r
					setToolbarStates();\r
				}, 0 );\r
			} );\r
\r
			// Make sure that deferred mouseup callback isn't executed after editor instance\r
			// had been destroyed. This may happen when editor.destroy() is called in parallel\r
			// with mouseup event (i.e. a button with onclick callback) (#10219).\r
			editor.on( 'destroy', function() {\r
				clearTimeout( mouseupTimeout );\r
			} );\r
\r
			editable.on( 'keyup', setToolbarStates );\r
		}\r
\r
		// Create object representing Cut or Copy commands.\r
		function createCutCopyCmd( type ) {\r
			return {\r
				type: type,\r
				canUndo: type == 'cut', // We can't undo copy to clipboard.\r
				startDisabled: true,\r
				exec: function() {\r
					// Attempts to execute the Cut and Copy operations.\r
					function tryToCutCopy( type ) {\r
						if ( CKEDITOR.env.ie )\r
							return execIECommand( type );\r
\r
						// non-IEs part\r
						try {\r
							// Other browsers throw an error if the command is disabled.\r
							return editor.document.$.execCommand( type, false, null );\r
						} catch ( e ) {\r
							return false;\r
						}\r
					}\r
\r
					this.type == 'cut' && fixCut();\r
\r
					var success = tryToCutCopy( this.type );\r
\r
					if ( !success ) {\r
						// Show cutError or copyError.\r
						editor.showNotification( editor.lang.clipboard[ this.type + 'Error' ] ); // jshint ignore:line\r
					}\r
\r
					return success;\r
				}\r
			};\r
		}\r
\r
		function createPasteCmd() {\r
			return {\r
				// Snapshots are done manually by editable.insertXXX methods.\r
				canUndo: false,\r
				async: true,\r
\r
				exec: function( editor, data ) {\r
					var fire = function( data, withBeforePaste ) {\r
							data &&	firePasteEvents( editor, data, !!withBeforePaste );\r
\r
							editor.fire( 'afterCommandExec', {\r
								name: 'paste',\r
								command: cmd,\r
								returnValue: !!data\r
							} );\r
						},\r
						cmd = this;\r
\r
					// Check data precisely - don't open dialog on empty string.\r
					if ( typeof data == 'string' )\r
						fire( {\r
								dataValue: data,\r
								method: 'paste',\r
								dataTransfer: clipboard.initPasteDataTransfer()\r
							}, 1 );\r
					else\r
						editor.getClipboardData( fire );\r
				}\r
			};\r
		}\r
\r
		function preventPasteEventNow() {\r
			preventPasteEvent = 1;\r
			// For safety reason we should wait longer than 0/1ms.\r
			// We don't know how long execution of quite complex getClipboardData will take\r
			// and in for example 'paste' listener execCommand() (which fires 'paste') is called\r
			// after getClipboardData finishes.\r
			// Luckily, it's impossible to immediately fire another 'paste' event we want to handle,\r
			// because we only handle there native context menu and menu bar.\r
			setTimeout( function() {\r
				preventPasteEvent = 0;\r
			}, 100 );\r
		}\r
\r
		function preventBeforePasteEventNow() {\r
			preventBeforePasteEvent = 1;\r
			setTimeout( function() {\r
				preventBeforePasteEvent = 0;\r
			}, 10 );\r
		}\r
\r
		// Tries to execute any of the paste, cut or copy commands in IE. Returns a\r
		// boolean indicating that the operation succeeded.\r
		// @param {String} command *LOWER CASED* name of command ('paste', 'cut', 'copy').\r
		function execIECommand( command ) {\r
			var doc = editor.document,\r
				body = doc.getBody(),\r
				enabled = false,\r
				onExec = function() {\r
					enabled = true;\r
				};\r
\r
			// The following seems to be the only reliable way to detect that\r
			// clipboard commands are enabled in IE. It will fire the\r
			// onpaste/oncut/oncopy events only if the security settings allowed\r
			// the command to execute.\r
			body.on( command, onExec );\r
\r
			// IE7: document.execCommand has problem to paste into positioned element.\r
			if ( CKEDITOR.env.version > 7 ) {\r
				doc.$.execCommand( command );\r
			} else {\r
				doc.$.selection.createRange().execCommand( command );\r
			}\r
\r
			body.removeListener( command, onExec );\r
\r
			return enabled;\r
		}\r
\r
		// Cutting off control type element in IE standards breaks the selection entirely. (#4881)\r
		function fixCut() {\r
			if ( !CKEDITOR.env.ie || CKEDITOR.env.quirks )\r
				return;\r
\r
			var sel = editor.getSelection(),\r
				control, range, dummy;\r
\r
			if ( ( sel.getType() == CKEDITOR.SELECTION_ELEMENT ) && ( control = sel.getSelectedElement() ) ) {\r
				range = sel.getRanges()[ 0 ];\r
				dummy = editor.document.createText( '' );\r
				dummy.insertBefore( control );\r
				range.setStartBefore( dummy );\r
				range.setEndAfter( control );\r
				sel.selectRanges( [ range ] );\r
\r
				// Clear up the fix if the paste wasn't succeeded.\r
				setTimeout( function() {\r
					// Element still online?\r
					if ( control.getParent() ) {\r
						dummy.remove();\r
						sel.selectElement( control );\r
					}\r
				}, 0 );\r
			}\r
		}\r
\r
		// Allow to peek clipboard content by redirecting the\r
		// pasting content into a temporary bin and grab the content of it.\r
		function getClipboardDataByPastebin( evt, callback ) {\r
			var doc = editor.document,\r
				editable = editor.editable(),\r
				cancel = function( evt ) {\r
					evt.cancel();\r
				},\r
				blurListener;\r
\r
			// Avoid recursions on 'paste' event or consequent paste too fast. (#5730)\r
			if ( doc.getById( 'cke_pastebin' ) )\r
				return;\r
\r
			var sel = editor.getSelection();\r
			var bms = sel.createBookmarks();\r
\r
			// #11384. On IE9+ we use native selectionchange (i.e. editor#selectionCheck) to cache the most\r
			// recent selection which we then lock on editable blur. See selection.js for more info.\r
			// selectionchange fired before getClipboardDataByPastebin() cached selection\r
			// before creating bookmark (cached selection will be invalid, because bookmarks modified the DOM),\r
			// so we need to fire selectionchange one more time, to store current seleciton.\r
			// Selection will be locked when we focus pastebin.\r
			if ( CKEDITOR.env.ie )\r
				sel.root.fire( 'selectionchange' );\r
\r
			// Create container to paste into.\r
			// For rich content we prefer to use "body" since it holds\r
			// the least possibility to be splitted by pasted content, while this may\r
			// breaks the text selection on a frame-less editable, "div" would be\r
			// the best one in that case.\r
			// In another case on old IEs moving the selection into a "body" paste bin causes error panic.\r
			// Body can't be also used for Opera which fills it with <br>\r
			// what is indistinguishable from pasted <br> (copying <br> in Opera isn't possible,\r
			// but it can be copied from other browser).\r
			var pastebin = new CKEDITOR.dom.element(\r
				( CKEDITOR.env.webkit || editable.is( 'body' ) ) && !CKEDITOR.env.ie ? 'body' : 'div', doc );\r
\r
			pastebin.setAttributes( {\r
				id: 'cke_pastebin',\r
				'data-cke-temp': '1'\r
			} );\r
\r
			var containerOffset = 0,\r
				offsetParent,\r
				win = doc.getWindow();\r
\r
			if ( CKEDITOR.env.webkit ) {\r
				// It's better to paste close to the real paste destination, so inherited styles\r
				// (which Webkits will try to compensate by styling span) differs less from the destination's one.\r
				editable.append( pastebin );\r
				// Style pastebin like .cke_editable, to minimize differences between origin and destination. (#9754)\r
				pastebin.addClass( 'cke_editable' );\r
\r
				// Compensate position of offsetParent.\r
				if ( !editable.is( 'body' ) ) {\r
					// We're not able to get offsetParent from pastebin (body element), so check whether\r
					// its parent (editable) is positioned.\r
					if ( editable.getComputedStyle( 'position' ) != 'static' )\r
						offsetParent = editable;\r
					// And if not - safely get offsetParent from editable.\r
					else\r
						offsetParent = CKEDITOR.dom.element.get( editable.$.offsetParent );\r
\r
					containerOffset = offsetParent.getDocumentPosition().y;\r
				}\r
			} else {\r
				// Opera and IE doesn't allow to append to html element.\r
				editable.getAscendant( CKEDITOR.env.ie ? 'body' : 'html', 1 ).append( pastebin );\r
			}\r
\r
			pastebin.setStyles( {\r
				position: 'absolute',\r
				// Position the bin at the top (+10 for safety) of viewport to avoid any subsequent document scroll.\r
				top: ( win.getScrollPosition().y - containerOffset + 10 ) + 'px',\r
				width: '1px',\r
				// Caret has to fit in that height, otherwise browsers like Chrome & Opera will scroll window to show it.\r
				// Set height equal to viewport's height - 20px (safety gaps), minimum 1px.\r
				height: Math.max( 1, win.getViewPaneSize().height - 20 ) + 'px',\r
				overflow: 'hidden',\r
				// Reset styles that can mess up pastebin position.\r
				margin: 0,\r
				padding: 0\r
			} );\r
\r
			// Paste fails in Safari when the body tag has 'user-select: none'. (#12506)\r
			if ( CKEDITOR.env.safari )\r
				pastebin.setStyles( CKEDITOR.tools.cssVendorPrefix( 'user-select', 'text' ) );\r
\r
			// Check if the paste bin now establishes new editing host.\r
			var isEditingHost = pastebin.getParent().isReadOnly();\r
\r
			if ( isEditingHost ) {\r
				// Hide the paste bin.\r
				pastebin.setOpacity( 0 );\r
				// And make it editable.\r
				pastebin.setAttribute( 'contenteditable', true );\r
			}\r
			// Transparency is not enough since positioned non-editing host always shows\r
			// resize handler, pull it off the screen instead.\r
			else {\r
				pastebin.setStyle( editor.config.contentsLangDirection == 'ltr' ? 'left' : 'right', '-1000px' );\r
			}\r
\r
			editor.on( 'selectionChange', cancel, null, null, 0 );\r
\r
			// Webkit fill fire blur on editable when moving selection to\r
			// pastebin (if body is used). Cancel it because it causes incorrect\r
			// selection lock in case of inline editor (#10644).\r
			// The same seems to apply to Firefox (#10787).\r
			if ( CKEDITOR.env.webkit || CKEDITOR.env.gecko )\r
				blurListener = editable.once( 'blur', cancel, null, null, -100 );\r
\r
			// Temporarily move selection to the pastebin.\r
			isEditingHost && pastebin.focus();\r
			var range = new CKEDITOR.dom.range( pastebin );\r
			range.selectNodeContents( pastebin );\r
			var selPastebin = range.select();\r
\r
			// If non-native paste is executed, IE will open security alert and blur editable.\r
			// Editable will then lock selection inside itself and after accepting security alert\r
			// this selection will be restored. We overwrite stored selection, so it's restored\r
			// in pastebin. (#9552)\r
			if ( CKEDITOR.env.ie ) {\r
				blurListener = editable.once( 'blur', function() {\r
					editor.lockSelection( selPastebin );\r
				} );\r
			}\r
\r
			var scrollTop = CKEDITOR.document.getWindow().getScrollPosition().y;\r
\r
			// Wait a while and grab the pasted contents.\r
			setTimeout( function() {\r
				// Restore main window's scroll position which could have been changed\r
				// by browser in cases described in #9771.\r
				if ( CKEDITOR.env.webkit )\r
					CKEDITOR.document.getBody().$.scrollTop = scrollTop;\r
\r
				// Blur will be fired only on non-native paste. In other case manually remove listener.\r
				blurListener && blurListener.removeListener();\r
\r
				// Restore properly the document focus. (#8849)\r
				if ( CKEDITOR.env.ie )\r
					editable.focus();\r
\r
				// IE7: selection must go before removing pastebin. (#8691)\r
				sel.selectBookmarks( bms );\r
				pastebin.remove();\r
\r
				// Grab the HTML contents.\r
				// We need to look for a apple style wrapper on webkit it also adds\r
				// a div wrapper if you copy/paste the body of the editor.\r
				// Remove hidden div and restore selection.\r
				var bogusSpan;\r
				if ( CKEDITOR.env.webkit && ( bogusSpan = pastebin.getFirst() ) && ( bogusSpan.is && bogusSpan.hasClass( 'Apple-style-span' ) ) )\r
					pastebin = bogusSpan;\r
\r
				editor.removeListener( 'selectionChange', cancel );\r
				callback( pastebin.getHtml() );\r
			}, 0 );\r
		}\r
\r
		// Try to get content directly on IE from clipboard, without native event\r
		// being fired before. In other words - synthetically get clipboard data, if it's possible.\r
		// mainPasteEvent will be fired, so if forced native paste:\r
		// * worked, getClipboardDataByPastebin will grab it,\r
		// * didn't work, dataValue and dataTransfer will be empty and editor#paste won't be fired.\r
		// Clipboard data can be accessed directly only on IEs older than Edge.\r
		// On other browsers we should fire beforePaste event and return false.\r
		function getClipboardDataDirectly() {\r
			if ( clipboard.mainPasteEvent == 'paste' ) {\r
				// beforePaste should be fired when dialog open so it can be canceled.\r
				editor.fire( 'beforePaste', { type: 'auto', method: 'paste' } );\r
				return false;\r
			}\r
\r
			// Prevent IE from pasting at the begining of the document.\r
			editor.focus();\r
\r
			// Command will be handled by 'beforepaste', but as\r
			// execIECommand( 'paste' ) will fire also 'paste' event\r
			// we're canceling it.\r
			preventPasteEventNow();\r
\r
			// #9247: Lock focus to prevent IE from hiding toolbar for inline editor.\r
			var focusManager = editor.focusManager;\r
			focusManager.lock();\r
\r
			if ( editor.editable().fire( clipboard.mainPasteEvent ) && !execIECommand( 'paste' ) ) {\r
				focusManager.unlock();\r
				return false;\r
			}\r
			focusManager.unlock();\r
\r
			return true;\r
		}\r
\r
		// Listens for some clipboard related keystrokes, so they get customized.\r
		// Needs to be bind to keydown event.\r
		function onKey( event ) {\r
			if ( editor.mode != 'wysiwyg' )\r
				return;\r
\r
			switch ( event.data.keyCode ) {\r
				// Paste\r
				case CKEDITOR.CTRL + 86: // CTRL+V\r
				case CKEDITOR.SHIFT + 45: // SHIFT+INS\r
					var editable = editor.editable();\r
\r
					// Cancel 'paste' event because ctrl+v is for IE handled\r
					// by 'beforepaste'.\r
					preventPasteEventNow();\r
\r
					// Simulate 'beforepaste' event for all browsers using 'paste' as main event.\r
					if ( clipboard.mainPasteEvent == 'paste' ) {\r
						editable.fire( 'beforepaste' );\r
					}\r
\r
					return;\r
\r
					// Cut\r
				case CKEDITOR.CTRL + 88: // CTRL+X\r
				case CKEDITOR.SHIFT + 46: // SHIFT+DEL\r
					// Save Undo snapshot.\r
					editor.fire( 'saveSnapshot' ); // Save before cut\r
					setTimeout( function() {\r
						editor.fire( 'saveSnapshot' ); // Save after cut\r
					}, 50 ); // OSX is slow (#11416).\r
			}\r
		}\r
\r
		function pasteDataFromClipboard( evt ) {\r
			// Default type is 'auto', but can be changed by beforePaste listeners.\r
			var eventData = {\r
					type: 'auto',\r
					method: 'paste',\r
					dataTransfer: clipboard.initPasteDataTransfer( evt )\r
				};\r
\r
			eventData.dataTransfer.cacheData();\r
\r
			// Fire 'beforePaste' event so clipboard flavor get customized by other plugins.\r
			// If 'beforePaste' is canceled continue executing getClipboardDataByPastebin and then do nothing\r
			// (do not fire 'paste', 'afterPaste' events). This way we can grab all - synthetically\r
			// and natively pasted content and prevent its insertion into editor\r
			// after canceling 'beforePaste' event.\r
			var beforePasteNotCanceled = editor.fire( 'beforePaste', eventData ) !== false;\r
\r
			// Do not use paste bin if the browser let us get HTML or files from dataTranfer.\r
			if ( beforePasteNotCanceled && clipboard.canClipboardApiBeTrusted( eventData.dataTransfer, editor ) ) {\r
				evt.data.preventDefault();\r
				setTimeout( function() {\r
					firePasteEvents( editor, eventData );\r
				}, 0 );\r
			} else {\r
				getClipboardDataByPastebin( evt, function( data ) {\r
					// Clean up.\r
					eventData.dataValue = data.replace( /<span[^>]+data-cke-bookmark[^<]*?<\/span>/ig, '' );\r
\r
					// Fire remaining events (without beforePaste)\r
					beforePasteNotCanceled && firePasteEvents( editor, eventData );\r
				} );\r
			}\r
		}\r
\r
		function setToolbarStates() {\r
			if ( editor.mode != 'wysiwyg' )\r
				return;\r
\r
			var pasteState = stateFromNamedCommand( 'paste' );\r
\r
			editor.getCommand( 'cut' ).setState( stateFromNamedCommand( 'cut' ) );\r
			editor.getCommand( 'copy' ).setState( stateFromNamedCommand( 'copy' ) );\r
			editor.getCommand( 'paste' ).setState( pasteState );\r
			editor.fire( 'pasteState', pasteState );\r
		}\r
\r
		function stateFromNamedCommand( command ) {\r
			if ( inReadOnly && command in { paste: 1, cut: 1 } )\r
				return CKEDITOR.TRISTATE_DISABLED;\r
\r
			if ( command == 'paste' )\r
				return CKEDITOR.TRISTATE_OFF;\r
\r
			// Cut, copy - check if the selection is not empty.\r
			var sel = editor.getSelection(),\r
				ranges = sel.getRanges(),\r
				selectionIsEmpty = sel.getType() == CKEDITOR.SELECTION_NONE || ( ranges.length == 1 && ranges[ 0 ].collapsed );\r
\r
			return selectionIsEmpty ? CKEDITOR.TRISTATE_DISABLED : CKEDITOR.TRISTATE_OFF;\r
		}\r
	}\r
\r
	// Returns:\r
	// * 'htmlifiedtext' if content looks like transformed by browser from plain text.\r
	//		See clipboard/paste.html TCs for more info.\r
	// * 'html' if it is not 'htmlifiedtext'.\r
	function recogniseContentType( data ) {\r
		if ( CKEDITOR.env.webkit ) {\r
			// Plain text or ( <div><br></div> and text inside <div> ).\r
			if ( !data.match( /^[^<]*$/g ) && !data.match( /^(<div><br( ?\/)?><\/div>|<div>[^<]*<\/div>)*$/gi ) )\r
				return 'html';\r
		} else if ( CKEDITOR.env.ie ) {\r
			// Text and <br> or ( text and <br> in <p> - paragraphs can be separated by new \r\n ).\r
			if ( !data.match( /^([^<]|<br( ?\/)?>)*$/gi ) && !data.match( /^(<p>([^<]|<br( ?\/)?>)*<\/p>|(\r\n))*$/gi ) )\r
				return 'html';\r
		} else if ( CKEDITOR.env.gecko ) {\r
			// Text or <br>.\r
			if ( !data.match( /^([^<]|<br( ?\/)?>)*$/gi ) )\r
				return 'html';\r
		} else {\r
			return 'html';\r
		}\r
\r
		return 'htmlifiedtext';\r
	}\r
\r
	// This function transforms what browsers produce when\r
	// pasting plain text into editable element (see clipboard/paste.html TCs\r
	// for more info) into correct HTML (similar to that produced by text2Html).\r
	function htmlifiedTextHtmlification( config, data ) {\r
		function repeatParagraphs( repeats ) {\r
			// Repeat blocks floor((n+1)/2) times.\r
			// Even number of repeats - add <br> at the beginning of last <p>.\r
			return CKEDITOR.tools.repeat( '</p><p>', ~~( repeats / 2 ) ) + ( repeats % 2 == 1 ? '<br>' : '' );\r
		}\r
\r
			// Replace adjacent white-spaces (EOLs too - Fx sometimes keeps them) with one space.\r
		data = data.replace( /\s+/g, ' ' )\r
			// Remove spaces from between tags.\r
			.replace( /> +</g, '><' )\r
			// Normalize XHTML syntax and upper cased <br> tags.\r
			.replace( /<br ?\/>/gi, '<br>' );\r
\r
		// IE - lower cased tags.\r
		data = data.replace( /<\/?[A-Z]+>/g, function( match ) {\r
			return match.toLowerCase();\r
		} );\r
\r
		// Don't touch single lines (no <br|p|div>) - nothing to do here.\r
		if ( data.match( /^[^<]$/ ) )\r
			return data;\r
\r
		// Webkit.\r
		if ( CKEDITOR.env.webkit && data.indexOf( '<div>' ) > -1 ) {\r
				// One line break at the beginning - insert <br>\r
			data = data.replace( /^(<div>(<br>|)<\/div>)(?!$|(<div>(<br>|)<\/div>))/g, '<br>' )\r
				// Two or more - reduce number of new lines by one.\r
				.replace( /^(<div>(<br>|)<\/div>){2}(?!$)/g, '<div></div>' );\r
\r
			// Two line breaks create one paragraph in Webkit.\r
			if ( data.match( /<div>(<br>|)<\/div>/ ) ) {\r
				data = '<p>' + data.replace( /(<div>(<br>|)<\/div>)+/g, function( match ) {\r
					return repeatParagraphs( match.split( '</div><div>' ).length + 1 );\r
				} ) + '</p>';\r
			}\r
\r
			// One line break create br.\r
			data = data.replace( /<\/div><div>/g, '<br>' );\r
\r
			// Remove remaining divs.\r
			data = data.replace( /<\/?div>/g, '' );\r
		}\r
\r
		// Opera and Firefox and enterMode != BR.\r
		if ( CKEDITOR.env.gecko && config.enterMode != CKEDITOR.ENTER_BR ) {\r
			// Remove bogus <br> - Fx generates two <brs> for one line break.\r
			// For two line breaks it still produces two <brs>, but it's better to ignore this case than the first one.\r
			if ( CKEDITOR.env.gecko )\r
				data = data.replace( /^<br><br>$/, '<br>' );\r
\r
			// This line satisfy edge case when for Opera we have two line breaks\r
			//data = data.replace( /)\r
\r
			if ( data.indexOf( '<br><br>' ) > -1 ) {\r
				// Two line breaks create one paragraph, three - 2, four - 3, etc.\r
				data = '<p>' + data.replace( /(<br>){2,}/g, function( match ) {\r
					return repeatParagraphs( match.length / 4 );\r
				} ) + '</p>';\r
			}\r
		}\r
\r
		return switchEnterMode( config, data );\r
	}\r
\r
	function filtersFactoryFactory() {\r
		var filters = {};\r
\r
		function setUpTags() {\r
			var tags = {};\r
\r
			for ( var tag in CKEDITOR.dtd ) {\r
				if ( tag.charAt( 0 ) != '$' && tag != 'div' && tag != 'span' ) {\r
					tags[ tag ] = 1;\r
				}\r
			}\r
\r
			return tags;\r
		}\r
\r
		function createSemanticContentFilter() {\r
			var filter = new CKEDITOR.filter();\r
\r
			filter.allow( {\r
				$1: {\r
					elements: setUpTags(),\r
					attributes: true,\r
					styles: false,\r
					classes: false\r
				}\r
			} );\r
\r
			return filter;\r
		}\r
\r
		return {\r
			get: function( type ) {\r
				if ( type == 'plain-text' ) {\r
					// Does this look confusing to you? Did we forget about enter mode?\r
					// It is a trick that let's us creating one filter for edidtor, regardless of its\r
					// activeEnterMode (which as the name indicates can change during runtime).\r
					//\r
					// How does it work?\r
					// The active enter mode is passed to the filter.applyTo method.\r
					// The filter first marks all elements except <br> as disallowed and then tries to remove\r
					// them. However, it cannot remove e.g. a <p> element completely, because it's a basic structural element,\r
					// so it tries to replace it with an element created based on the active enter mode, eventually doing nothing.\r
					//\r
					// Now you can sleep well.\r
					return filters.plainText || ( filters.plainText = new CKEDITOR.filter( 'br' ) );\r
				} else if ( type == 'semantic-content' ) {\r
					return filters.semanticContent || ( filters.semanticContent = createSemanticContentFilter() );\r
				} else if ( type ) {\r
					// Create filter based on rules (string or object).\r
					return new CKEDITOR.filter( type );\r
				}\r
\r
				return null;\r
			}\r
		};\r
	}\r
\r
	function filterContent( editor, data, filter ) {\r
		var fragment = CKEDITOR.htmlParser.fragment.fromHtml( data ),\r
			writer = new CKEDITOR.htmlParser.basicWriter();\r
\r
		filter.applyTo( fragment, true, false, editor.activeEnterMode );\r
		fragment.writeHtml( writer );\r
\r
		return writer.getHtml();\r
	}\r
\r
	function switchEnterMode( config, data ) {\r
		if ( config.enterMode == CKEDITOR.ENTER_BR ) {\r
			data = data.replace( /(<\/p><p>)+/g, function( match ) {\r
				return CKEDITOR.tools.repeat( '<br>', match.length / 7 * 2 );\r
			} ).replace( /<\/?p>/g, '' );\r
		} else if ( config.enterMode == CKEDITOR.ENTER_DIV ) {\r
			data = data.replace( /<(\/)?p>/g, '<$1div>' );\r
		}\r
\r
		return data;\r
	}\r
\r
	function preventDefaultSetDropEffectToNone( evt ) {\r
		evt.data.preventDefault();\r
		evt.data.$.dataTransfer.dropEffect = 'none';\r
	}\r
\r
	function initDragDrop( editor ) {\r
		var clipboard = CKEDITOR.plugins.clipboard;\r
\r
		editor.on( 'contentDom', function() {\r
			var editable = editor.editable(),\r
				dropTarget = CKEDITOR.plugins.clipboard.getDropTarget( editor ),\r
				top = editor.ui.space( 'top' ),\r
				bottom = editor.ui.space( 'bottom' );\r
\r
			// -------------- DRAGOVER TOP & BOTTOM --------------\r
\r
			// Not allowing dragging on toolbar and bottom (#12613).\r
			clipboard.preventDefaultDropOnElement( top );\r
			clipboard.preventDefaultDropOnElement( bottom );\r
\r
			// -------------- DRAGSTART --------------\r
			// Listed on dragstart to mark internal and cross-editor drag & drop\r
			// and save range and selected HTML.\r
\r
			editable.attachListener( dropTarget, 'dragstart', fireDragEvent );\r
\r
			// Make sure to reset data transfer (in case dragend was not called or was canceled).\r
			editable.attachListener( editor, 'dragstart', clipboard.resetDragDataTransfer, clipboard, null, 1 );\r
\r
			// Create a dataTransfer object and save it globally.\r
			editable.attachListener( editor, 'dragstart', function( evt ) {\r
				clipboard.initDragDataTransfer( evt, editor );\r
			}, null, null, 2 );\r
\r
			editable.attachListener( editor, 'dragstart', function() {\r
				// Save drag range globally for cross editor D&D.\r
				var dragRange = clipboard.dragRange = editor.getSelection().getRanges()[ 0 ];\r
\r
				// Store number of children, so we can later tell if any text node was split on drop. (#13011, #13447)\r
				if ( CKEDITOR.env.ie && CKEDITOR.env.version < 10 ) {\r
					clipboard.dragStartContainerChildCount = dragRange ? getContainerChildCount( dragRange.startContainer ) : null;\r
					clipboard.dragEndContainerChildCount = dragRange ? getContainerChildCount( dragRange.endContainer ) : null;\r
				}\r
			}, null, null, 100 );\r
\r
			// -------------- DRAGEND --------------\r
			// Clean up on dragend.\r
\r
			editable.attachListener( dropTarget, 'dragend', fireDragEvent );\r
\r
			// Init data transfer if someone wants to use it in dragend.\r
			editable.attachListener( editor, 'dragend', clipboard.initDragDataTransfer, clipboard, null, 1 );\r
\r
			// When drag & drop is done we need to reset dataTransfer so the future\r
			// external drop will be not recognize as internal.\r
			editable.attachListener( editor, 'dragend', clipboard.resetDragDataTransfer, clipboard, null, 100 );\r
\r
			// -------------- DRAGOVER --------------\r
			// We need to call preventDefault on dragover because otherwise if\r
			// we drop image it will overwrite document.\r
\r
			editable.attachListener( dropTarget, 'dragover', function( evt ) {\r
				var target = evt.data.getTarget();\r
\r
				// Prevent reloading page when dragging image on empty document (#12619).\r
				if ( target && target.is && target.is( 'html' ) ) {\r
					evt.data.preventDefault();\r
					return;\r
				}\r
\r
				// If we do not prevent default dragover on IE the file path\r
				// will be loaded and we will lose content. On the other hand\r
				// if we prevent it the cursor will not we shown, so we prevent\r
				// dragover only on IE, on versions which support file API and only\r
				// if the event contains files.\r
				if ( CKEDITOR.env.ie &&\r
					CKEDITOR.plugins.clipboard.isFileApiSupported &&\r
					evt.data.$.dataTransfer.types.contains( 'Files' ) ) {\r
					evt.data.preventDefault();\r
				}\r
			} );\r
\r
			// -------------- DROP --------------\r
\r
			editable.attachListener( dropTarget, 'drop', function( evt ) {\r
				// Do nothing if event was already prevented. (#13879)\r
				if ( evt.data.$.defaultPrevented ) {\r
					return;\r
				}\r
\r
				// Cancel native drop.\r
				evt.data.preventDefault();\r
\r
				var target = evt.data.getTarget(),\r
					readOnly = target.isReadOnly();\r
\r
				// Do nothing if drop on non editable element (#13015).\r
				// The <html> tag isn't editable (body is), but we want to allow drop on it\r
				// (so it is possible to drop below editor contents).\r
				if ( readOnly && !( target.type == CKEDITOR.NODE_ELEMENT && target.is( 'html' ) ) ) {\r
					return;\r
				}\r
\r
				// Getting drop position is one of the most complex parts.\r
				var dropRange = clipboard.getRangeAtDropPosition( evt, editor ),\r
					dragRange = clipboard.dragRange;\r
\r
				// Do nothing if it was not possible to get drop range.\r
				if ( !dropRange ) {\r
					return;\r
				}\r
\r
				// Fire drop.\r
				fireDragEvent( evt, dragRange, dropRange  );\r
			}, null, null, 9999 );\r
\r
			// Create dataTransfer or get it, if it was created before.\r
			editable.attachListener( editor, 'drop', clipboard.initDragDataTransfer, clipboard, null, 1 );\r
\r
			// Execute drop action, fire paste.\r
			editable.attachListener( editor, 'drop', function( evt ) {\r
				var data = evt.data;\r
\r
				if ( !data ) {\r
					return;\r
				}\r
\r
				// Let user modify drag and drop range.\r
				var dropRange = data.dropRange,\r
					dragRange = data.dragRange,\r
					dataTransfer = data.dataTransfer;\r
\r
				if ( dataTransfer.getTransferType( editor ) == CKEDITOR.DATA_TRANSFER_INTERNAL ) {\r
					// Execute drop with a timeout because otherwise selection, after drop,\r
					// on IE is in the drag position, instead of drop position.\r
					setTimeout( function() {\r
						clipboard.internalDrop( dragRange, dropRange, dataTransfer, editor );\r
					}, 0 );\r
				} else if ( dataTransfer.getTransferType( editor ) == CKEDITOR.DATA_TRANSFER_CROSS_EDITORS ) {\r
					crossEditorDrop( dragRange, dropRange, dataTransfer );\r
				} else {\r
					externalDrop( dropRange, dataTransfer );\r
				}\r
			}, null, null, 9999 );\r
\r
			// Cross editor drag and drop (drag in one Editor and drop in the other).\r
			function crossEditorDrop( dragRange, dropRange, dataTransfer ) {\r
				// Paste event should be fired before delete contents because otherwise\r
				// Chrome have a problem with drop range (Chrome split the drop\r
				// range container so the offset is bigger then container length).\r
				dropRange.select();\r
				firePasteEvents( editor, { dataTransfer: dataTransfer, method: 'drop' }, 1 );\r
\r
				// Remove dragged content and make a snapshot.\r
				dataTransfer.sourceEditor.fire( 'saveSnapshot' );\r
\r
				dataTransfer.sourceEditor.editable().extractHtmlFromRange( dragRange );\r
\r
				// Make some selection before saving snapshot, otherwise error will be thrown, because\r
				// there will be no valid selection after content is removed.\r
				dataTransfer.sourceEditor.getSelection().selectRanges( [ dragRange ] );\r
				dataTransfer.sourceEditor.fire( 'saveSnapshot' );\r
			}\r
\r
			// Drop from external source.\r
			function externalDrop( dropRange, dataTransfer ) {\r
				// Paste content into the drop position.\r
				dropRange.select();\r
\r
				firePasteEvents( editor, { dataTransfer: dataTransfer, method: 'drop' }, 1 );\r
\r
				// Usually we reset DataTranfer on dragend,\r
				// but dragend is called on the same element as dragstart\r
				// so it will not be called on on external drop.\r
				clipboard.resetDragDataTransfer();\r
			}\r
\r
			// Fire drag/drop events (dragstart, dragend, drop).\r
			function fireDragEvent( evt, dragRange, dropRange ) {\r
				var eventData = {\r
						$: evt.data.$,\r
						target: evt.data.getTarget()\r
					};\r
\r
				if ( dragRange ) {\r
					eventData.dragRange = dragRange;\r
				}\r
				if ( dropRange ) {\r
					eventData.dropRange = dropRange;\r
				}\r
\r
				if ( editor.fire( evt.name, eventData ) === false ) {\r
					evt.data.preventDefault();\r
				}\r
			}\r
\r
			function getContainerChildCount( container ) {\r
				if ( container.type != CKEDITOR.NODE_ELEMENT ) {\r
					container = container.getParent();\r
				}\r
\r
				return container.getChildCount();\r
			}\r
		} );\r
	}\r
\r
	/**\r
	 * @singleton\r
	 * @class CKEDITOR.plugins.clipboard\r
	 */\r
	CKEDITOR.plugins.clipboard = {\r
		/**\r
		 * True if the environment allows to set data on copy or cut manually. This value is false in IE, because this browser\r
		 * shows the security dialog window when the script tries to set clipboard data and on iOS, because custom data is\r
		 * not saved to clipboard there.\r
		 *\r
		 * @since 4.5\r
		 * @readonly\r
		 * @property {Boolean}\r
		 */\r
		isCustomCopyCutSupported: !CKEDITOR.env.ie && !CKEDITOR.env.iOS,\r
\r
		/**\r
		 * True if the environment supports MIME types and custom data types in dataTransfer/cliboardData getData/setData methods.\r
		 *\r
		 * @since 4.5\r
		 * @readonly\r
		 * @property {Boolean}\r
		 */\r
		isCustomDataTypesSupported: !CKEDITOR.env.ie,\r
\r
		/**\r
		 * True if the environment supports File API.\r
		 *\r
		 * @since 4.5\r
		 * @readonly\r
		 * @property {Boolean}\r
		 */\r
		isFileApiSupported: !CKEDITOR.env.ie || CKEDITOR.env.version > 9,\r
\r
		/**\r
		 * Main native paste event editable should listen to.\r
		 *\r
		 * **Note:** Safari does not like the {@link CKEDITOR.editor#beforePaste} event &mdash; it sometimes does not\r
		 * handle <kbd>Ctrl+C</kbd> properly. This is probably caused by some race condition between events.\r
		 * Chrome, Firefox and Edge work well with both events, so it is better to use {@link CKEDITOR.editor#paste}\r
		 * which will handle pasting from e.g. browsers' menu bars.\r
		 * IE7/8 does not like the {@link CKEDITOR.editor#paste} event for which it is throwing random errors.\r
		 *\r
		 * @since 4.5\r
		 * @readonly\r
		 * @property {String}\r
		 */\r
		mainPasteEvent: ( CKEDITOR.env.ie && !CKEDITOR.env.edge ) ? 'beforepaste' : 'paste',\r
\r
		/**\r
		 * Returns `true` if it is expected that a browser provides HTML data through the Clipboard API.\r
		 * If not, this method returns `false` and as a result CKEditor will use the paste bin. Read more in\r
		 * the [Clipboard Integration](http://docs.ckeditor.com/#!/guide/dev_clipboard-section-clipboard-api) guide.\r
		 *\r
		 * @since 4.5.2\r
		 * @returns {Boolean}\r
		 */\r
		canClipboardApiBeTrusted: function( dataTransfer, editor ) {\r
			// If it's an internal or cross-editor data transfer, then it means that custom cut/copy/paste support works\r
			// and that the data were put manually on the data transfer so we can be sure that it's available.\r
			if ( dataTransfer.getTransferType( editor ) != CKEDITOR.DATA_TRANSFER_EXTERNAL ) {\r
				return true;\r
			}\r
\r
			// In Chrome we can trust Clipboard API, with the exception of Chrome on Android (in both - mobile and desktop modes), where\r
			// clipboard API is not available so we need to check it (#13187).\r
			if ( CKEDITOR.env.chrome && !dataTransfer.isEmpty() ) {\r
				return true;\r
			}\r
\r
			// Because of a Firefox bug HTML data are not available in some cases (e.g. paste from Word), in such cases we\r
			// need to use the pastebin (#13528, https://bugzilla.mozilla.org/show_bug.cgi?id=1183686).\r
			if ( CKEDITOR.env.gecko && ( dataTransfer.getData( 'text/html' ) || dataTransfer.getFilesCount() ) ) {\r
				return true;\r
			}\r
\r
			// In Safari and IE HTML data is not available though the Clipboard API.\r
			// In Edge things are a bit messy at the moment -\r
			// https://connect.microsoft.com/IE/feedback/details/1572456/edge-clipboard-api-text-html-content-messed-up-in-event-clipboarddata\r
			// It is safer to use the paste bin in unknown cases.\r
			return false;\r
		},\r
\r
		/**\r
		 * Returns the element that should be used as the target for the drop event.\r
		 *\r
		 * @since 4.5\r
		 * @param {CKEDITOR.editor} editor The editor instance.\r
		 * @returns {CKEDITOR.dom.domObject} the element that should be used as the target for the drop event.\r
		 */\r
		getDropTarget: function( editor ) {\r
			var editable = editor.editable();\r
\r
			// #11123 Firefox needs to listen on document, because otherwise event won't be fired.\r
			// #11086 IE8 cannot listen on document.\r
			if ( ( CKEDITOR.env.ie && CKEDITOR.env.version < 9 ) || editable.isInline() ) {\r
				return editable;\r
			} else {\r
				return editor.document;\r
			}\r
		},\r
\r
		/**\r
		 * IE 8 & 9 split text node on drop so the first node contains the\r
		 * text before the drop position and the second contains the rest. If you\r
		 * drag the content from the same node you will be not be able to get\r
		 * it (the range becomes invalid), so you need to join them back.\r
		 *\r
		 * Note that the first node in IE 8 & 9 is the original node object\r
		 * but with shortened content.\r
		 *\r
		 *		Before:\r
		 *		  --- Text Node A ----------------------------------\r
		 *		                                             /\\r
		 *		                                        Drag position\r
		 *\r
		 *		After (IE 8 & 9):\r
		 *		  --- Text Node A -----  --- Text Node B -----------\r
		 *		                       /\                    /\\r
		 *		                  Drop position        Drag position\r
		 *		                                         (invalid)\r
		 *\r
		 *		After (other browsers):\r
		 *		  --- Text Node A ----------------------------------\r
		 *		                       /\                    /\\r
		 *		                  Drop position        Drag position\r
		 *\r
		 * **Note:** This function is in the public scope for tests usage only.\r
		 *\r
		 * @since 4.5\r
		 * @private\r
		 * @param {CKEDITOR.dom.range} dragRange The drag range.\r
		 * @param {CKEDITOR.dom.range} dropRange The drop range.\r
		 * @param {Number} preDragStartContainerChildCount The number of children of the drag range start container before the drop.\r
		 * @param {Number} preDragEndContainerChildCount The number of children of the drag range end container before the drop.\r
		 */\r
		fixSplitNodesAfterDrop: function( dragRange, dropRange, preDragStartContainerChildCount, preDragEndContainerChildCount ) {\r
			var dropContainer = dropRange.startContainer;\r
\r
			if (\r
				typeof preDragEndContainerChildCount != 'number' ||\r
				typeof preDragStartContainerChildCount != 'number'\r
			) {\r
				return;\r
			}\r
\r
			// We are only concerned about ranges anchored in elements.\r
			if ( dropContainer.type != CKEDITOR.NODE_ELEMENT ) {\r
				return;\r
			}\r
\r
			if ( handleContainer( dragRange.startContainer, dropContainer, preDragStartContainerChildCount ) ) {\r
				return;\r
			}\r
\r
			if ( handleContainer( dragRange.endContainer, dropContainer, preDragEndContainerChildCount ) ) {\r
				return;\r
			}\r
\r
			function handleContainer( dragContainer, dropContainer, preChildCount ) {\r
				var dragElement = dragContainer;\r
				if ( dragElement.type == CKEDITOR.NODE_TEXT ) {\r
					dragElement = dragContainer.getParent();\r
				}\r
\r
				if ( dragElement.equals( dropContainer ) && preChildCount != dropContainer.getChildCount() ) {\r
					applyFix( dropRange );\r
					return true;\r
				}\r
			}\r
\r
			function applyFix( dropRange ) {\r
				var nodeBefore = dropRange.startContainer.getChild( dropRange.startOffset - 1 ),\r
					nodeAfter = dropRange.startContainer.getChild( dropRange.startOffset );\r
\r
				if (\r
					nodeBefore && nodeBefore.type == CKEDITOR.NODE_TEXT &&\r
					nodeAfter && nodeAfter.type == CKEDITOR.NODE_TEXT\r
				) {\r
					var offset = nodeBefore.getLength();\r
\r
					nodeBefore.setText( nodeBefore.getText() + nodeAfter.getText() );\r
					nodeAfter.remove();\r
\r
					dropRange.setStart( nodeBefore, offset );\r
					dropRange.collapse( true );\r
				}\r
			}\r
		},\r
\r
		/**\r
		 * Checks whether turning the drag range into bookmarks will invalidate the drop range.\r
		 * This usually happens when the drop range shares the container with the drag range and is\r
		 * located after the drag range, but there are countless edge cases.\r
		 *\r
		 * This function is stricly related to {@link #internalDrop} which toggles\r
		 * order in which it creates bookmarks for both ranges based on a value returned\r
		 * by this method. In some cases this method returns a value which is not necessarily\r
		 * true in terms of what it was meant to check, but it is convenient, because\r
		 * we know how it is interpreted in {@link #internalDrop}, so the correct\r
		 * behavior of the entire algorithm is assured.\r
		 *\r
		 * **Note:** This function is in the public scope for tests usage only.\r
		 *\r
		 * @since 4.5\r
		 * @private\r
		 * @param {CKEDITOR.dom.range} dragRange The first range to compare.\r
		 * @param {CKEDITOR.dom.range} dropRange The second range to compare.\r
		 * @returns {Boolean} `true` if the first range is before the second range.\r
		 */\r
		isDropRangeAffectedByDragRange: function( dragRange, dropRange ) {\r
			var dropContainer = dropRange.startContainer,\r
				dropOffset = dropRange.endOffset;\r
\r
			// Both containers are the same and drop offset is at the same position or later.\r
			// " A L] A " " M A "\r
			//       ^ ^\r
			if ( dragRange.endContainer.equals( dropContainer ) && dragRange.endOffset <= dropOffset ) {\r
				return true;\r
			}\r
\r
			// Bookmark for drag start container will mess up with offsets.\r
			// " O [L A " " M A "\r
			//           ^       ^\r
			if (\r
				dragRange.startContainer.getParent().equals( dropContainer ) &&\r
				dragRange.startContainer.getIndex() < dropOffset\r
			) {\r
				return true;\r
			}\r
\r
			// Bookmark for drag end container will mess up with offsets.\r
			// " O] L A " " M A "\r
			//           ^       ^\r
			if (\r
				dragRange.endContainer.getParent().equals( dropContainer ) &&\r
				dragRange.endContainer.getIndex() < dropOffset\r
			) {\r
				return true;\r
			}\r
\r
			return false;\r
		},\r
\r
		/**\r
		 * Internal drag and drop (drag and drop in the same editor instance).\r
		 *\r
		 * **Note:** This function is in the public scope for tests usage only.\r
		 *\r
		 * @since 4.5\r
		 * @private\r
		 * @param {CKEDITOR.dom.range} dragRange The first range to compare.\r
		 * @param {CKEDITOR.dom.range} dropRange The second range to compare.\r
		 * @param {CKEDITOR.plugins.clipboard.dataTransfer} dataTransfer\r
		 * @param {CKEDITOR.editor} editor\r
		 */\r
		internalDrop: function( dragRange, dropRange, dataTransfer, editor ) {\r
			var clipboard = CKEDITOR.plugins.clipboard,\r
				editable = editor.editable(),\r
				dragBookmark, dropBookmark, isDropRangeAffected;\r
\r
			// Save and lock snapshot so there will be only\r
			// one snapshot for both remove and insert content.\r
			editor.fire( 'saveSnapshot' );\r
			editor.fire( 'lockSnapshot', { dontUpdate: 1 } );\r
\r
			if ( CKEDITOR.env.ie && CKEDITOR.env.version < 10 ) {\r
				this.fixSplitNodesAfterDrop(\r
					dragRange,\r
					dropRange,\r
					clipboard.dragStartContainerChildCount,\r
					clipboard.dragEndContainerChildCount\r
				);\r
			}\r
\r
			// Because we manipulate multiple ranges we need to do it carefully,\r
			// changing one range (event creating a bookmark) may make other invalid.\r
			// We need to change ranges into bookmarks so we can manipulate them easily in the future.\r
			// We can change the range which is later in the text before we change the preceding range.\r
			// We call isDropRangeAffectedByDragRange to test the order of ranges.\r
			isDropRangeAffected = this.isDropRangeAffectedByDragRange( dragRange, dropRange );\r
			if ( !isDropRangeAffected ) {\r
				dragBookmark = dragRange.createBookmark( false );\r
			}\r
			dropBookmark = dropRange.clone().createBookmark( false );\r
			if ( isDropRangeAffected ) {\r
				dragBookmark = dragRange.createBookmark( false );\r
			}\r
\r
			// Check if drop range is inside range.\r
			// This is an edge case when we drop something on editable's margin/padding.\r
			// That space is not treated as a part of the range we drag, so it is possible to drop there.\r
			// When we drop, browser tries to find closest drop position and it finds it inside drag range. (#13453)\r
			var startNode = dragBookmark.startNode,\r
				endNode = dragBookmark.endNode,\r
				dropNode = dropBookmark.startNode,\r
				dropInsideDragRange =\r
					// Must check endNode because dragRange could be collapsed in some edge cases (simulated DnD).\r
					endNode &&\r
					( startNode.getPosition( dropNode ) & CKEDITOR.POSITION_PRECEDING ) &&\r
					( endNode.getPosition( dropNode ) & CKEDITOR.POSITION_FOLLOWING );\r
\r
			// If the drop range happens to be inside drag range change it's position to the beginning of the drag range.\r
			if ( dropInsideDragRange ) {\r
				// We only change position of bookmark span that is connected with dropBookmark.\r
				// dropRange will be overwritten and set to the dropBookmark later.\r
				dropNode.insertBefore( startNode );\r
			}\r
\r
			// No we can safely delete content for the drag range...\r
			dragRange = editor.createRange();\r
			dragRange.moveToBookmark( dragBookmark );\r
			editable.extractHtmlFromRange( dragRange, 1 );\r
\r
			// ...and paste content into the drop position.\r
			dropRange = editor.createRange();\r
			dropRange.moveToBookmark( dropBookmark );\r
\r
			// We do not select drop range, because of may be in the place we can not set the selection\r
			// (e.g. between blocks, in case of block widget D&D). We put range to the paste event instead.\r
			firePasteEvents( editor, { dataTransfer: dataTransfer, method: 'drop', range: dropRange }, 1 );\r
\r
			editor.fire( 'unlockSnapshot' );\r
		},\r
\r
		/**\r
		 * Gets the range from the `drop` event.\r
		 *\r
		 * @since 4.5\r
		 * @param {Object} domEvent A native DOM drop event object.\r
		 * @param {CKEDITOR.editor} editor The source editor instance.\r
		 * @returns {CKEDITOR.dom.range} range at drop position.\r
		 */\r
		getRangeAtDropPosition: function( dropEvt, editor ) {\r
			var $evt = dropEvt.data.$,\r
				x = $evt.clientX,\r
				y = $evt.clientY,\r
				$range,\r
				defaultRange = editor.getSelection( true ).getRanges()[ 0 ],\r
				range = editor.createRange();\r
\r
			// Make testing possible.\r
			if ( dropEvt.data.testRange )\r
				return dropEvt.data.testRange;\r
\r
			// Webkits.\r
			if ( document.caretRangeFromPoint ) {\r
				$range = editor.document.$.caretRangeFromPoint( x, y );\r
				range.setStart( CKEDITOR.dom.node( $range.startContainer ), $range.startOffset );\r
				range.collapse( true );\r
			}\r
			// FF.\r
			else if ( $evt.rangeParent ) {\r
				range.setStart( CKEDITOR.dom.node( $evt.rangeParent ), $evt.rangeOffset );\r
				range.collapse( true );\r
			}\r
			// IEs 9+.\r
			// We check if editable is focused to make sure that it's an internal DnD. External DnD must use the second\r
			// mechanism because of http://dev.ckeditor.com/ticket/13472#comment:6.\r
			else if ( CKEDITOR.env.ie && CKEDITOR.env.version > 8 && defaultRange && editor.editable().hasFocus ) {\r
				// On IE 9+ range by default is where we expected it.\r
				// defaultRange may be undefined if dragover was canceled (file drop).\r
				return defaultRange;\r
			}\r
			// IE 8 and all IEs if !defaultRange or external DnD.\r
			else if ( document.body.createTextRange ) {\r
				// To use this method we need a focus (which may be somewhere else in case of external drop).\r
				editor.focus();\r
\r
				$range = editor.document.getBody().$.createTextRange();\r
				try {\r
					var sucess = false;\r
\r
					// If user drop between text line IEs moveToPoint throws exception:\r
					//\r
					//		Lorem ipsum pulvinar purus et euismod\r
					//\r
					//		dolor sit amet,| consectetur adipiscing\r
					//		               *\r
					//		vestibulum tincidunt augue eget tempus.\r
					//\r
					// * - drop position\r
					// | - expected cursor position\r
					//\r
					// So we try to call moveToPoint with +-1px up to +-20px above or\r
					// below original drop position to find nearest good drop position.\r
					for ( var i = 0; i < 20 && !sucess; i++ ) {\r
						if ( !sucess ) {\r
							try {\r
								$range.moveToPoint( x, y - i );\r
								sucess = true;\r
							} catch ( err ) {\r
							}\r
						}\r
						if ( !sucess ) {\r
							try {\r
								$range.moveToPoint( x, y + i );\r
								sucess = true;\r
							} catch ( err ) {\r
							}\r
						}\r
					}\r
\r
					if ( sucess ) {\r
						var id = 'cke-temp-' + ( new Date() ).getTime();\r
						$range.pasteHTML( '<span id="' + id + '">\u200b</span>' );\r
\r
						var span = editor.document.getById( id );\r
						range.moveToPosition( span, CKEDITOR.POSITION_BEFORE_START );\r
						span.remove();\r
					} else {\r
						// If the fist method does not succeed we might be next to\r
						// the short element (like header):\r
						//\r
						//		Lorem ipsum pulvinar purus et euismod.\r
						//\r
						//\r
						//		SOME HEADER|        *\r
						//\r
						//\r
						//		vestibulum tincidunt augue eget tempus.\r
						//\r
						// * - drop position\r
						// | - expected cursor position\r
						//\r
						// In such situation elementFromPoint returns proper element. Using getClientRect\r
						// it is possible to check if the cursor should be at the beginning or at the end\r
						// of paragraph.\r
						var $element = editor.document.$.elementFromPoint( x, y ),\r
							element = new CKEDITOR.dom.element( $element ),\r
							rect;\r
\r
						if ( !element.equals( editor.editable() ) && element.getName() != 'html' ) {\r
							rect = element.getClientRect();\r
\r
							if ( x < rect.left ) {\r
								range.setStartAt( element, CKEDITOR.POSITION_AFTER_START );\r
								range.collapse( true );\r
							} else {\r
								range.setStartAt( element, CKEDITOR.POSITION_BEFORE_END );\r
								range.collapse( true );\r
							}\r
						}\r
						// If drop happens on no element elementFromPoint returns html or body.\r
						//\r
						//		*      |Lorem ipsum pulvinar purus et euismod.\r
						//\r
						//		       vestibulum tincidunt augue eget tempus.\r
						//\r
						// * - drop position\r
						// | - expected cursor position\r
						//\r
						// In such case we can try to use default selection. If startContainer is not\r
						// 'editable' element it is probably proper selection.\r
						else if ( defaultRange && defaultRange.startContainer &&\r
							!defaultRange.startContainer.equals( editor.editable() ) ) {\r
							return defaultRange;\r
\r
						// Otherwise we can not find any drop position and we have to return null\r
						// and cancel drop event.\r
						} else {\r
							return null;\r
						}\r
\r
					}\r
				} catch ( err ) {\r
					return null;\r
				}\r
			} else {\r
				return null;\r
			}\r
\r
			return range;\r
		},\r
\r
		/**\r
		 * This function tries to link the `evt.data.dataTransfer` property of the {@link CKEDITOR.editor#dragstart},\r
		 * {@link CKEDITOR.editor#dragend} and {@link CKEDITOR.editor#drop} events to a single\r
		 * {@link CKEDITOR.plugins.clipboard.dataTransfer} object.\r
		 *\r
		 * This method is automatically used by the core of the drag and drop functionality and\r
		 * usually does not have to be called manually when using the drag and drop events.\r
		 *\r
		 * This method behaves differently depending on whether the drag and drop events were fired\r
		 * artificially (to represent a non-native drag and drop) or whether they were caused by the native drag and drop.\r
		 *\r
		 * If the native event is not available, then it will create a new {@link CKEDITOR.plugins.clipboard.dataTransfer}\r
		 * instance (if it does not exist already) and will link it to this and all following event objects until\r
		 * the {@link #resetDragDataTransfer} method is called. It means that all three drag and drop events must be fired\r
		 * in order to ensure that the data transfer is bound correctly.\r
		 *\r
		 * If the native event is available, then the {@link CKEDITOR.plugins.clipboard.dataTransfer} is identified\r
		 * by its ID and a new instance is assigned to the `evt.data.dataTransfer` only if the ID changed or\r
		 * the {@link #resetDragDataTransfer} method was called.\r
		 *\r
		 * @since 4.5\r
		 * @param {CKEDITOR.dom.event} [evt] A drop event object.\r
		 * @param {CKEDITOR.editor} [sourceEditor] The source editor instance.\r
		 */\r
		initDragDataTransfer: function( evt, sourceEditor ) {\r
			// Create a new dataTransfer object based on the drop event.\r
			// If this event was used on dragstart to create dataTransfer\r
			// both dataTransfer objects will have the same id.\r
			var nativeDataTransfer = evt.data.$ ? evt.data.$.dataTransfer : null,\r
				dataTransfer = new this.dataTransfer( nativeDataTransfer, sourceEditor );\r
\r
			if ( !nativeDataTransfer ) {\r
				// No native event.\r
				if ( this.dragData ) {\r
					dataTransfer = this.dragData;\r
				} else {\r
					this.dragData = dataTransfer;\r
				}\r
			} else {\r
				// Native event. If there is the same id we will replace dataTransfer with the one\r
				// created on drag, because it contains drag editor, drag content and so on.\r
				// Otherwise (in case of drag from external source) we save new object to\r
				// the global clipboard.dragData.\r
				if ( this.dragData && dataTransfer.id == this.dragData.id ) {\r
					dataTransfer = this.dragData;\r
				} else {\r
					this.dragData = dataTransfer;\r
				}\r
			}\r
\r
			evt.data.dataTransfer = dataTransfer;\r
		},\r
\r
		/**\r
		 * Removes the global {@link #dragData} so the next call to {@link #initDragDataTransfer}\r
		 * always creates a new instance of {@link CKEDITOR.plugins.clipboard.dataTransfer}.\r
		 *\r
		 * @since 4.5\r
		 */\r
		resetDragDataTransfer: function() {\r
			this.dragData = null;\r
		},\r
\r
		/**\r
		 * Global object storing the data transfer of the current drag and drop operation.\r
		 * Do not use it directly, use {@link #initDragDataTransfer} and {@link #resetDragDataTransfer}.\r
		 *\r
		 * Note: This object is global (meaning that it is not related to a single editor instance)\r
		 * in order to handle drag and drop from one editor into another.\r
		 *\r
		 * @since 4.5\r
		 * @private\r
		 * @property {CKEDITOR.plugins.clipboard.dataTransfer} dragData\r
		 */\r
\r
		/**\r
		 * Range object to save the drag range and remove its content after the drop.\r
		 *\r
		 * @since 4.5\r
		 * @private\r
		 * @property {CKEDITOR.dom.range} dragRange\r
		 */\r
\r
		/**\r
		 * Initializes and links data transfer objects based on the paste event. If the data\r
		 * transfer object was already initialized on this event, the function will\r
		 * return that object. In IE it is not possible to link copy/cut and paste events\r
		 * so the method always returns a new object. The same happens if there is no paste event\r
		 * passed to the method.\r
		 *\r
		 * @since 4.5\r
		 * @param {CKEDITOR.dom.event} [evt] A paste event object.\r
		 * @param {CKEDITOR.editor} [sourceEditor] The source editor instance.\r
		 * @returns {CKEDITOR.plugins.clipboard.dataTransfer} The data transfer object.\r
		 */\r
		initPasteDataTransfer: function( evt, sourceEditor ) {\r
			if ( !this.isCustomCopyCutSupported ) {\r
				return new this.dataTransfer( null, sourceEditor );\r
			} else if ( evt && evt.data && evt.data.$ ) {\r
				var dataTransfer = new this.dataTransfer( evt.data.$.clipboardData, sourceEditor );\r
\r
				if ( this.copyCutData && dataTransfer.id == this.copyCutData.id ) {\r
					dataTransfer = this.copyCutData;\r
					dataTransfer.$ = evt.data.$.clipboardData;\r
				} else {\r
					this.copyCutData = dataTransfer;\r
				}\r
\r
				return dataTransfer;\r
			} else {\r
				return new this.dataTransfer( null, sourceEditor );\r
			}\r
		},\r
\r
		/**\r
		 * Prevents dropping on the specified element.\r
		 *\r
		 * @since 4.5\r
		 * @param {CKEDITOR.dom.element} element The element on which dropping should be disabled.\r
		 */\r
		preventDefaultDropOnElement: function( element ) {\r
			element && element.on( 'dragover', preventDefaultSetDropEffectToNone );\r
		}\r
	};\r
\r
	// Data type used to link drag and drop events.\r
	//\r
	// In IE URL data type is buggie and there is no way to mark drag & drop  without\r
	// modifying text data (which would be displayed if user drop content to the textarea)\r
	// so we just read dragged text.\r
	//\r
	// In Chrome and Firefox we can use custom data types.\r
	var clipboardIdDataType = CKEDITOR.plugins.clipboard.isCustomDataTypesSupported ? 'cke/id' : 'Text';\r
	/**\r
	 * Facade for the native `dataTransfer`/`clipboadData` object to hide all differences\r
	 * between browsers.\r
	 *\r
	 * @since 4.5\r
	 * @class CKEDITOR.plugins.clipboard.dataTransfer\r
	 * @constructor Creates a class instance.\r
	 * @param {Object} [nativeDataTransfer] A native data transfer object.\r
	 * @param {CKEDITOR.editor} [editor] The source editor instance. If the editor is defined, dataValue will\r
	 * be created based on the editor content and the type will be 'html'.\r
	 */\r
	CKEDITOR.plugins.clipboard.dataTransfer = function( nativeDataTransfer, editor ) {\r
		if ( nativeDataTransfer ) {\r
			this.$ = nativeDataTransfer;\r
		}\r
\r
		this._ = {\r
			metaRegExp: /^<meta.*?>/i,\r
			bodyRegExp: /<body(?:[\s\S]*?)>([\s\S]*)<\/body>/i,\r
			fragmentRegExp: /<!--(?:Start|End)Fragment-->/g,\r
\r
			data: {},\r
			files: [],\r
\r
			normalizeType: function( type ) {\r
				type = type.toLowerCase();\r
\r
				if ( type == 'text' || type == 'text/plain' ) {\r
					return 'Text'; // IE support only Text and URL;\r
				} else if ( type == 'url' ) {\r
					return 'URL'; // IE support only Text and URL;\r
				} else {\r
					return type;\r
				}\r
			}\r
		};\r
\r
		// Check if ID is already created.\r
		this.id = this.getData( clipboardIdDataType );\r
\r
		// If there is no ID we need to create it. Different browsers needs different ID.\r
		if ( !this.id ) {\r
			if ( clipboardIdDataType == 'Text' ) {\r
				// For IE10+ only Text data type is supported and we have to compare dragged\r
				// and dropped text. If the ID is not set it means that empty string was dragged\r
				// (ex. image with no alt). We change null to empty string.\r
				this.id = '';\r
			} else {\r
				// String for custom data type.\r
				this.id = 'cke-' + CKEDITOR.tools.getUniqueId();\r
			}\r
		}\r
\r
		// In IE10+ we can not use any data type besides text, so we do not call setData.\r
		if ( clipboardIdDataType != 'Text' ) {\r
			// Try to set ID so it will be passed from the drag to the drop event.\r
			// On some browsers with some event it is not possible to setData so we\r
			// need to catch exceptions.\r
			try {\r
				this.$.setData( clipboardIdDataType, this.id );\r
			} catch ( err ) {}\r
		}\r
\r
		if ( editor ) {\r
			this.sourceEditor = editor;\r
\r
			this.setData( 'text/html', editor.getSelectedHtml( 1 ) );\r
\r
			// Without setData( 'text', ... ) on dragstart there is no drop event in Safari.\r
			// Also 'text' data is empty as drop to the textarea does not work if we do not put there text.\r
			if ( clipboardIdDataType != 'Text' && !this.getData( 'text/plain' ) ) {\r
				this.setData( 'text/plain', editor.getSelection().getSelectedText() );\r
			}\r
		}\r
\r
		/**\r
		 * Data transfer ID used to bind all dataTransfer\r
		 * objects based on the same event (e.g. in drag and drop events).\r
		 *\r
		 * @readonly\r
		 * @property {String} id\r
		 */\r
\r
		/**\r
		 * A native DOM event object.\r
		 *\r
		 * @readonly\r
		 * @property {Object} $\r
		 */\r
\r
		/**\r
		 * Source editor &mdash; the editor where the drag starts.\r
		 * Might be undefined if the drag starts outside the editor (e.g. when dropping files to the editor).\r
		 *\r
		 * @readonly\r
		 * @property {CKEDITOR.editor} sourceEditor\r
		 */\r
\r
		/**\r
		 * Private properties and methods.\r
		 *\r
		 * @private\r
		 * @property {Object} _\r
		 */\r
	};\r
\r
	/**\r
	 * Data transfer operation (drag and drop or copy and paste) started and ended in the same\r
	 * editor instance.\r
	 *\r
	 * @since 4.5\r
	 * @readonly\r
	 * @property {Number} [=1]\r
	 * @member CKEDITOR\r
	 */\r
	CKEDITOR.DATA_TRANSFER_INTERNAL = 1;\r
\r
	/**\r
	 * Data transfer operation (drag and drop or copy and paste) started in one editor\r
	 * instance and ended in another.\r
	 *\r
	 * @since 4.5\r
	 * @readonly\r
	 * @property {Number} [=2]\r
	 * @member CKEDITOR\r
	 */\r
	CKEDITOR.DATA_TRANSFER_CROSS_EDITORS = 2;\r
\r
	/**\r
	 * Data transfer operation (drag and drop or copy and paste) started outside of the editor.\r
	 * The source of the data may be a textarea, HTML, another application, etc.\r
	 *\r
	 * @since 4.5\r
	 * @readonly\r
	 * @property {Number} [=3]\r
	 * @member CKEDITOR\r
	 */\r
	CKEDITOR.DATA_TRANSFER_EXTERNAL = 3;\r
\r
	CKEDITOR.plugins.clipboard.dataTransfer.prototype = {\r
		/**\r
		 * Facade for the native `getData` method.\r
		 *\r
		 * @param {String} type The type of data to retrieve.\r
		 * @returns {String} type Stored data for the given type or an empty string if the data for that type does not exist.\r
		 */\r
		getData: function( type ) {\r
			function isEmpty( data ) {\r
				return data === undefined || data === null || data === '';\r
			}\r
\r
			type = this._.normalizeType( type );\r
\r
			var data = this._.data[ type ],\r
				result;\r
\r
			if ( isEmpty( data ) ) {\r
				try {\r
					data = this.$.getData( type );\r
				} catch ( e ) {}\r
			}\r
\r
			if ( isEmpty( data ) ) {\r
				data = '';\r
			}\r
\r
			// Some browsers add <meta http-equiv="content-type" content="text/html; charset=utf-8"> at the begging of the HTML data\r
			// or surround it with <html><head>...</head><body>(some content)<!--StartFragment--> and <!--EndFragment-->(some content)</body></html>\r
			// This code removes meta tags and returns only the contents of the <body> element if found. Note that\r
			// some significant content may be placed outside Start/EndFragment comments so it's kept.\r
			//\r
			// See #13583 for more details.\r
			if ( type == 'text/html' ) {\r
				data = data.replace( this._.metaRegExp, '' );\r
\r
				// Keep only contents of the <body> element\r
				result = this._.bodyRegExp.exec( data );\r
				if ( result && result.length ) {\r
					data = result[ 1 ];\r
\r
					// Remove also comments.\r
					data = data.replace( this._.fragmentRegExp, '' );\r
				}\r
			}\r
			// Firefox on Linux put files paths as a text/plain data if there are files\r
			// in the dataTransfer object. We need to hide it, because files should be\r
			// handled on paste only if dataValue is empty.\r
			else if ( type == 'Text' && CKEDITOR.env.gecko && this.getFilesCount() &&\r
				data.substring( 0, 7 ) == 'file://' ) {\r
				data = '';\r
			}\r
\r
			return data;\r
		},\r
\r
		/**\r
		 * Facade for the native `setData` method.\r
		 *\r
		 * @param {String} type The type of data to retrieve.\r
		 * @param {String} value The data to add.\r
		 */\r
		setData: function( type, value ) {\r
			type = this._.normalizeType( type );\r
\r
			this._.data[ type ] = value;\r
\r
			// There is "Unexpected call to method or property access." error if you try\r
			// to set data of unsupported type on IE.\r
			if ( !CKEDITOR.plugins.clipboard.isCustomDataTypesSupported && type != 'URL' && type != 'Text' ) {\r
				return;\r
			}\r
\r
			// If we use the text type to bind the ID, then if someone tries to set the text, we must also\r
			// update ID accordingly. #13468.\r
			if ( clipboardIdDataType == 'Text' && type == 'Text' ) {\r
				this.id = value;\r
			}\r
\r
			try {\r
				this.$.setData( type, value );\r
			} catch ( e ) {}\r
		},\r
\r
		/**\r
		 * Gets the data transfer type.\r
		 *\r
		 * @param {CKEDITOR.editor} targetEditor The drop/paste target editor instance.\r
		 * @returns {Number} Possible values: {@link CKEDITOR#DATA_TRANSFER_INTERNAL},\r
		 * {@link CKEDITOR#DATA_TRANSFER_CROSS_EDITORS}, {@link CKEDITOR#DATA_TRANSFER_EXTERNAL}.\r
		 */\r
		getTransferType: function( targetEditor ) {\r
			if ( !this.sourceEditor ) {\r
				return CKEDITOR.DATA_TRANSFER_EXTERNAL;\r
			} else if ( this.sourceEditor == targetEditor ) {\r
				return CKEDITOR.DATA_TRANSFER_INTERNAL;\r
			} else {\r
				return CKEDITOR.DATA_TRANSFER_CROSS_EDITORS;\r
			}\r
		},\r
\r
		/**\r
		 * Copies the data from the native data transfer to a private cache.\r
		 * This function is needed because the data from the native data transfer\r
		 * is available only synchronously to the event listener. It is not possible\r
		 * to get the data asynchronously, after a timeout, and the {@link CKEDITOR.editor#paste}\r
		 * event is fired asynchronously &mdash; hence the need for caching the data.\r
		 */\r
		cacheData: function() {\r
			if ( !this.$ ) {\r
				return;\r
			}\r
\r
			var that = this,\r
				i, file;\r
\r
			function getAndSetData( type ) {\r
				type = that._.normalizeType( type );\r
\r
				var data = that.getData( type );\r
				if ( data ) {\r
					that._.data[ type ] = data;\r
				}\r
			}\r
\r
			// Copy data.\r
			if ( CKEDITOR.plugins.clipboard.isCustomDataTypesSupported ) {\r
				if ( this.$.types ) {\r
					for ( i = 0; i < this.$.types.length; i++ ) {\r
						getAndSetData( this.$.types[ i ] );\r
					}\r
				}\r
			} else {\r
				getAndSetData( 'Text' );\r
				getAndSetData( 'URL' );\r
			}\r
\r
			// Copy files references.\r
			file = this._getImageFromClipboard();\r
			if ( ( this.$ && this.$.files ) || file ) {\r
				this._.files = [];\r
\r
				for ( i = 0; i < this.$.files.length; i++ ) {\r
					this._.files.push( this.$.files[ i ] );\r
				}\r
\r
				// Don't include $.items if both $.files and $.items contains files, because,\r
				// according to spec and browsers behavior, they contain the same files.\r
				if ( this._.files.length === 0 && file ) {\r
					this._.files.push( file );\r
				}\r
			}\r
		},\r
\r
		/**\r
		 * Gets the number of files in the dataTransfer object.\r
		 *\r
		 * @returns {Number} The number of files.\r
		 */\r
		getFilesCount: function() {\r
			if ( this._.files.length ) {\r
				return this._.files.length;\r
			}\r
\r
			if ( this.$ && this.$.files && this.$.files.length ) {\r
				return this.$.files.length;\r
			}\r
\r
			return this._getImageFromClipboard() ? 1 : 0;\r
		},\r
\r
		/**\r
		 * Gets the file at the index given.\r
		 *\r
		 * @param {Number} i Index.\r
		 * @returns {File} File instance.\r
		 */\r
		getFile: function( i ) {\r
			if ( this._.files.length ) {\r
				return this._.files[ i ];\r
			}\r
\r
			if ( this.$ && this.$.files && this.$.files.length ) {\r
				return this.$.files[ i ];\r
			}\r
\r
			// File or null if the file was not found.\r
			return i === 0 ? this._getImageFromClipboard() : undefined;\r
		},\r
\r
		/**\r
		 * Checks if the data transfer contains any data.\r
		 *\r
		 * @returns {Boolean} `true` if the object contains no data.\r
		 */\r
		isEmpty: function() {\r
			var typesToCheck = {},\r
				type;\r
\r
			// If dataTransfer contains files it is not empty.\r
			if ( this.getFilesCount() ) {\r
				return false;\r
			}\r
\r
			// Add custom types.\r
			for ( type in this._.data ) {\r
				typesToCheck[ type ] = 1;\r
			}\r
\r
			// Add native types.\r
			if ( this.$ ) {\r
				if ( CKEDITOR.plugins.clipboard.isCustomDataTypesSupported ) {\r
					if ( this.$.types ) {\r
						for ( var i = 0; i < this.$.types.length; i++ ) {\r
							typesToCheck[ this.$.types[ i ] ] = 1;\r
						}\r
					}\r
				} else {\r
					typesToCheck.Text = 1;\r
					typesToCheck.URL = 1;\r
				}\r
			}\r
\r
			// Remove ID.\r
			if ( clipboardIdDataType != 'Text' ) {\r
				typesToCheck[ clipboardIdDataType ] = 0;\r
			}\r
\r
			for ( type in typesToCheck ) {\r
				if ( typesToCheck[ type ] && this.getData( type ) !== '' ) {\r
					return false;\r
				}\r
			}\r
\r
			return true;\r
		},\r
\r
		/**\r
		 * When the content of the clipboard is pasted in Chrome, the clipboard data object has an empty `files` property,\r
		 * but it is possible to get the file as `items[0].getAsFile();` (#12961).\r
		 *\r
		 * @private\r
		 * @returns {File} File instance or `null` if not found.\r
		 */\r
		_getImageFromClipboard: function() {\r
			var file;\r
\r
			if ( this.$ && this.$.items && this.$.items[ 0 ] ) {\r
				try {\r
					file = this.$.items[ 0 ].getAsFile();\r
					// Duck typing\r
					if ( file && file.type ) {\r
						return file;\r
					}\r
				} catch ( err ) {\r
					// noop\r
				}\r
			}\r
\r
			return undefined;\r
		}\r
	};\r
} )();\r
\r
/**\r
 * The default content type that is used when pasted data cannot be clearly recognized as HTML or text.\r
 *\r
 * For example: `'foo'` may come from a plain text editor or a website. It is not possible to recognize the content\r
 * type in this case, so the default type will be used. At the same time it is clear that `'<b>example</b> text'` is\r
 * HTML and its origin is a web page, email or another rich text editor.\r
 *\r
 * **Note:** If content type is text, then styles of the paste context are preserved.\r
 *\r
 *		CKEDITOR.config.clipboard_defaultContentType = 'text';\r
 *\r
 * See also the {@link CKEDITOR.editor#paste} event and read more about the integration with clipboard\r
 * in the [Clipboard Deep Dive guide](#!/guide/dev_clipboard).\r
 *\r
 * @since 4.0\r
 * @cfg {'html'/'text'} [clipboard_defaultContentType='html']\r
 * @member CKEDITOR.config\r
 */\r
\r
/**\r
 * Fired after the user initiated a paste action, but before the data is inserted into the editor.\r
 * The listeners to this event are able to process the content before its insertion into the document.\r
 *\r
 * Read more about the integration with clipboard in the [Clipboard Deep Dive guide](#!/guide/dev_clipboard).\r
 *\r
 * See also:\r
 *\r
 * * the {@link CKEDITOR.config#pasteFilter} option,\r
 * * the {@link CKEDITOR.editor#drop} event,\r
 * * the {@link CKEDITOR.plugins.clipboard.dataTransfer} class.\r
 *\r
 * @since 3.1\r
 * @event paste\r
 * @member CKEDITOR.editor\r
 * @param {CKEDITOR.editor} editor This editor instance.\r
 * @param data\r
 * @param {String} data.type The type of data in `data.dataValue`. Usually `'html'` or `'text'`, but for listeners\r
 * with a priority smaller than `6` it may also be `'auto'` which means that the content type has not been recognised yet\r
 * (this will be done by the content type sniffer that listens with priority `6`).\r
 * @param {String} data.dataValue HTML to be pasted.\r
 * @param {String} data.method Indicates the data transfer method. It could be drag and drop or copy and paste.\r
 * Possible values: `'drop'`, `'paste'`. Introduced in CKEditor 4.5.\r
 * @param {CKEDITOR.plugins.clipboard.dataTransfer} data.dataTransfer Facade for the native dataTransfer object\r
 * which provides access to various data types and files, and passes some data between linked events\r
 * (like drag and drop). Introduced in CKEditor 4.5.\r
 * @param {Boolean} [data.dontFilter=false] Whether the {@link CKEDITOR.editor#pasteFilter paste filter} should not\r
 * be applied to data. This option has no effect when `data.type` equals `'text'` which means that for instance\r
 * {@link CKEDITOR.config#forcePasteAsPlainText} has a higher priority. Introduced in CKEditor 4.5.\r
 */\r
\r
/**\r
 * Fired before the {@link #paste} event. Allows to preset data type.\r
 *\r
 * **Note:** This event is deprecated. Add a `0` priority listener for the\r
 * {@link #paste} event instead.\r
 *\r
 * @deprecated\r
 * @event beforePaste\r
 * @member CKEDITOR.editor\r
 */\r
\r
 /**\r
 * Fired after the {@link #paste} event if content was modified. Note that if the paste\r
 * event does not insert any data, the `afterPaste` event will not be fired.\r
 *\r
 * @event afterPaste\r
 * @member CKEDITOR.editor\r
 */\r
\r
/**\r
 * Internal event to open the Paste dialog window.\r
 *\r
 * @private\r
 * @event pasteDialog\r
 * @member CKEDITOR.editor\r
 * @param {CKEDITOR.editor} editor This editor instance.\r
 * @param {Function} [data] Callback that will be passed to {@link CKEDITOR.editor#openDialog}.\r
 */\r
\r
/**\r
 * Facade for the native `drop` event. Fired when the native `drop` event occurs.\r
 *\r
 * **Note:** To manipulate dropped data, use the {@link CKEDITOR.editor#paste} event.\r
 * Use the `drop` event only to control drag and drop operations (e.g. to prevent the ability to drop some content).\r
 *\r
 * Read more about integration with drag and drop in the [Clipboard Deep Dive guide](#!/guide/dev_clipboard).\r
 *\r
 * See also:\r
 *\r
 * * The {@link CKEDITOR.editor#paste} event,\r
 * * The {@link CKEDITOR.editor#dragstart} and {@link CKEDITOR.editor#dragend} events,\r
 * * The {@link CKEDITOR.plugins.clipboard.dataTransfer} class.\r
 *\r
 * @since 4.5\r
 * @event drop\r
 * @member CKEDITOR.editor\r
 * @param {CKEDITOR.editor} editor This editor instance.\r
 * @param data\r
 * @param {Object} data.$ Native drop event.\r
 * @param {CKEDITOR.dom.node} data.target Drop target.\r
 * @param {CKEDITOR.plugins.clipboard.dataTransfer} data.dataTransfer DataTransfer facade.\r
 * @param {CKEDITOR.dom.range} data.dragRange Drag range, lets you manipulate the drag range.\r
 * Note that dragged HTML is saved as `text/html` data on `dragstart` so if you change the drag range\r
 * on drop, dropped HTML will not change. You need to change it manually using\r
 * {@link CKEDITOR.plugins.clipboard.dataTransfer#setData dataTransfer.setData}.\r
 * @param {CKEDITOR.dom.range} data.dropRange Drop range, lets you manipulate the drop range.\r
 */\r
\r
/**\r
 * Facade for the native `dragstart` event. Fired when the native `dragstart` event occurs.\r
 *\r
 * This event can be canceled in order to block the drag start operation. It can also be fired to mimic the start of the drag and drop\r
 * operation. For instance, the `widget` plugin uses this option to integrate its custom block widget drag and drop with\r
 * the entire system.\r
 *\r
 * Read more about integration with drag and drop in the [Clipboard Deep Dive guide](#!/guide/dev_clipboard).\r
 *\r
 * See also:\r
 *\r
 * * The {@link CKEDITOR.editor#paste} event,\r
 * * The {@link CKEDITOR.editor#drop} and {@link CKEDITOR.editor#dragend} events,\r
 * * The {@link CKEDITOR.plugins.clipboard.dataTransfer} class.\r
 *\r
 * @since 4.5\r
 * @event dragstart\r
 * @member CKEDITOR.editor\r
 * @param {CKEDITOR.editor} editor This editor instance.\r
 * @param data\r
 * @param {Object} data.$ Native dragstart event.\r
 * @param {CKEDITOR.dom.node} data.target Drag target.\r
 * @param {CKEDITOR.plugins.clipboard.dataTransfer} data.dataTransfer DataTransfer facade.\r
 */\r
\r
/**\r
 * Facade for the native `dragend` event. Fired when the native `dragend` event occurs.\r
 *\r
 * Read more about integration with drag and drop in the [Clipboard Deep Dive guide](#!/guide/dev_clipboard).\r
 *\r
 * See also:\r
 *\r
 * * The {@link CKEDITOR.editor#paste} event,\r
 * * The {@link CKEDITOR.editor#drop} and {@link CKEDITOR.editor#dragend} events,\r
 * * The {@link CKEDITOR.plugins.clipboard.dataTransfer} class.\r
 *\r
 * @since 4.5\r
 * @event dragend\r
 * @member CKEDITOR.editor\r
 * @param {CKEDITOR.editor} editor This editor instance.\r
 * @param data\r
 * @param {Object} data.$ Native dragend event.\r
 * @param {CKEDITOR.dom.node} data.target Drag target.\r
 * @param {CKEDITOR.plugins.clipboard.dataTransfer} data.dataTransfer DataTransfer facade.\r
 */\r
\r
/**\r
 * Defines a filter which is applied to external data pasted or dropped into the editor. Possible values are:\r
 *\r
 * * `'plain-text'` &ndash; Content will be pasted as a plain text.\r
 * * `'semantic-content'` &ndash; Known tags (except `div`, `span`) with all attributes (except\r
 * `style` and `class`) will be kept.\r
 * * `'h1 h2 p div'` &ndash; Custom rules compatible with {@link CKEDITOR.filter}.\r
 * * `null` &ndash; Content will not be filtered by the paste filter (but it still may be filtered\r
 * by [Advanced Content Filter](#!/guide/dev_advanced_content_filter)). This value can be used to\r
 * disable the paste filter in Chrome and Safari, where this option defaults to `'semantic-content'`.\r
 *\r
 * Example:\r
 *\r
 *		config.pasteFilter = 'plain-text';\r
 *\r
 * Custom setting:\r
 *\r
 *		config.pasteFilter = 'h1 h2 p ul ol li; img[!src, alt]; a[!href]';\r
 *\r
 * Based on this configuration option, a proper {@link CKEDITOR.filter} instance will be defined and assigned to the editor\r
 * as a {@link CKEDITOR.editor#pasteFilter}. You can tweak the paste filter settings on the fly on this object\r
 * as well as delete or replace it.\r
 *\r
 *		var editor = CKEDITOR.replace( 'editor', {\r
 *			pasteFilter: 'semantic-content'\r
 *		} );\r
 *\r
 *		editor.on( 'instanceReady', function() {\r
 *			// The result of this will be that all semantic content will be preserved\r
 *			// except tables.\r
 *			editor.pasteFilter.disallow( 'table' );\r
 *		} );\r
 *\r
 * Note that the paste filter is applied only to **external** data. There are three data sources:\r
 *\r
 * * copied and pasted in the same editor (internal),\r
 * * copied from one editor and pasted into another (cross-editor),\r
 * * coming from all other sources like websites, MS Word, etc. (external).\r
 *\r
 * If {@link CKEDITOR.config#allowedContent Advanced Content Filter} is not disabled, then\r
 * it will also be applied to pasted and dropped data. The paste filter job is to "normalize"\r
 * external data which often needs to be handled differently than content produced by the editor.\r
 *\r
 * This setting defaults to `'semantic-content'` in Chrome, Opera and Safari (all Blink and Webkit based browsers)\r
 * due to messy HTML which these browsers keep in the clipboard. In other browsers it defaults to `null`.\r
 *\r
 * @since 4.5\r
 * @cfg {String} [pasteFilter='semantic-content' in Chrome and Safari and `null` in other browsers]\r
 * @member CKEDITOR.config\r
 */\r
\r
/**\r
 * {@link CKEDITOR.filter Content filter} which is used when external data is pasted or dropped into the editor\r
 * or a forced paste as plain text occurs.\r
 *\r
 * This object might be used on the fly to define rules for pasted external content.\r
 * This object is available and used if the {@link CKEDITOR.plugins.clipboard clipboard} plugin is enabled and\r
 * {@link CKEDITOR.config#pasteFilter} or {@link CKEDITOR.config#forcePasteAsPlainText} was defined.\r
 *\r
 * To enable the filter:\r
 *\r
 *		var editor = CKEDITOR.replace( 'editor', {\r
 *			pasteFilter: 'plain-text'\r
 *		} );\r
 *\r
 * You can also modify the filter on the fly later on:\r
 *\r
 *		editor.pasteFilter = new CKEDITOR.filter( 'p h1 h2; a[!href]' );\r
 *\r
 * Note that the paste filter is only applied to **external** data. There are three data sources:\r
 *\r
 * * copied and pasted in the same editor (internal),\r
 * * copied from one editor and pasted into another (cross-editor),\r
 * * coming from all other sources like websites, MS Word, etc. (external).\r
 *\r
 * If {@link CKEDITOR.config#allowedContent Advanced Content Filter} is not disabled, then\r
 * it will also be applied to pasted and dropped data. The paste filter job is to "normalize"\r
 * external data which often needs to be handled differently than content produced by the editor.\r
 *\r
 * @since 4.5\r
 * @readonly\r
 * @property {CKEDITOR.filter} [pasteFilter]\r
 * @member CKEDITOR.editor\r
 */\r