X-Git-Url: https://scm.cri.minesparis.psl.eu/git/ckeditor.git/blobdiff_plain/871bad8291b6dbc29d489d95d185458caab25158..14d450d78a2d67ec1decd64c928151851961dd36:/_source/plugins/undo/plugin.js?ds=inline

diff --git a/_source/plugins/undo/plugin.js b/_source/plugins/undo/plugin.js
deleted file mode 100644
index 89819f0..0000000
--- a/_source/plugins/undo/plugin.js
+++ /dev/null
@@ -1,580 +0,0 @@
-/*
-Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
-For licensing, see LICENSE.html or http://ckeditor.com/license
-*/
-
-/**
- * @fileOverview Undo/Redo system for saving shapshot for document modification
- *		and other recordable changes.
- */
-
-(function()
-{
-	CKEDITOR.plugins.add( 'undo',
-	{
-		requires : [ 'selection', 'wysiwygarea' ],
-
-		init : function( editor )
-		{
-			var undoManager = new UndoManager( editor );
-
-			var undoCommand = editor.addCommand( 'undo',
-				{
-					exec : function()
-					{
-						if ( undoManager.undo() )
-						{
-							editor.selectionChange();
-							this.fire( 'afterUndo' );
-						}
-					},
-					state : CKEDITOR.TRISTATE_DISABLED,
-					canUndo : false
-				});
-
-			var redoCommand = editor.addCommand( 'redo',
-				{
-					exec : function()
-					{
-						if ( undoManager.redo() )
-						{
-							editor.selectionChange();
-							this.fire( 'afterRedo' );
-						}
-					},
-					state : CKEDITOR.TRISTATE_DISABLED,
-					canUndo : false
-				});
-
-			undoManager.onChange = function()
-			{
-				undoCommand.setState( undoManager.undoable() ? CKEDITOR.TRISTATE_OFF : CKEDITOR.TRISTATE_DISABLED );
-				redoCommand.setState( undoManager.redoable() ? CKEDITOR.TRISTATE_OFF : CKEDITOR.TRISTATE_DISABLED );
-			};
-
-			function recordCommand( event )
-			{
-				// If the command hasn't been marked to not support undo.
-				if ( undoManager.enabled && event.data.command.canUndo !== false )
-					undoManager.save();
-			}
-
-			// We'll save snapshots before and after executing a command.
-			editor.on( 'beforeCommandExec', recordCommand );
-			editor.on( 'afterCommandExec', recordCommand );
-
-			// Save snapshots before doing custom changes.
-			editor.on( 'saveSnapshot', function()
-				{
-					undoManager.save();
-				});
-
-			// Registering keydown on every document recreation.(#3844)
-			editor.on( 'contentDom', function()
-				{
-					editor.document.on( 'keydown', function( event )
-						{
-							// Do not capture CTRL hotkeys.
-							if ( !event.data.$.ctrlKey && !event.data.$.metaKey )
-								undoManager.type( event );
-						});
-				});
-
-			// Always save an undo snapshot - the previous mode might have
-			// changed editor contents.
-			editor.on( 'beforeModeUnload', function()
-				{
-					editor.mode == 'wysiwyg' && undoManager.save( true );
-				});
-
-			// Make the undo manager available only in wysiwyg mode.
-			editor.on( 'mode', function()
-				{
-					undoManager.enabled = editor.readOnly ? false : editor.mode == 'wysiwyg';
-					undoManager.onChange();
-				});
-
-			editor.ui.addButton( 'Undo',
-				{
-					label : editor.lang.undo,
-					command : 'undo'
-				});
-
-			editor.ui.addButton( 'Redo',
-				{
-					label : editor.lang.redo,
-					command : 'redo'
-				});
-
-			editor.resetUndo = function()
-			{
-				// Reset the undo stack.
-				undoManager.reset();
-
-				// Create the first image.
-				editor.fire( 'saveSnapshot' );
-			};
-
-			/**
-			 * Update the undo stacks with any subsequent DOM changes after this call.
-			 * @name CKEDITOR.editor#updateUndo
-			 * @example
-			 * function()
-			 * {
-			 * editor.fire( 'updateSnapshot' );
-			 * ...
-			 *  // Ask to include subsequent (in this call stack) DOM changes to be
-			 * // considered as part of the first snapshot.
-			 * 	editor.fire( 'updateSnapshot' );
-			 * 	editor.document.body.append(...);
-			 * ...
-			 * }
-			 */
-			editor.on( 'updateSnapshot', function()
-			{
-				if ( undoManager.currentImage && new Image( editor ).equals( undoManager.currentImage ) )
-					setTimeout( function() { undoManager.update(); }, 0 );
-			});
-		}
-	});
-
-	CKEDITOR.plugins.undo = {};
-
-	/**
-	 * Undo snapshot which represents the current document status.
-	 * @name CKEDITOR.plugins.undo.Image
-	 * @param editor The editor instance on which the image is created.
-	 */
-	var Image = CKEDITOR.plugins.undo.Image = function( editor )
-	{
-		this.editor = editor;
-
-		editor.fire( 'beforeUndoImage' );
-
-		var contents = editor.getSnapshot(),
-			selection	= contents && editor.getSelection();
-
-		// In IE, we need to remove the expando attributes.
-		CKEDITOR.env.ie && contents && ( contents = contents.replace( /\s+data-cke-expando=".*?"/g, '' ) );
-
-		this.contents	= contents;
-		this.bookmarks	= selection && selection.createBookmarks2( true );
-
-		editor.fire( 'afterUndoImage' );
-	};
-
-	// Attributes that browser may changing them when setting via innerHTML.
-	var protectedAttrs = /\b(?:href|src|name)="[^"]*?"/gi;
-
-	Image.prototype =
-	{
-		equals : function( otherImage, contentOnly )
-		{
-
-			var thisContents = this.contents,
-				otherContents = otherImage.contents;
-
-			// For IE6/7 : Comparing only the protected attribute values but not the original ones.(#4522)
-			if ( CKEDITOR.env.ie && ( CKEDITOR.env.ie7Compat || CKEDITOR.env.ie6Compat ) )
-			{
-				thisContents = thisContents.replace( protectedAttrs, '' );
-				otherContents = otherContents.replace( protectedAttrs, '' );
-			}
-
-			if ( thisContents != otherContents )
-				return false;
-
-			if ( contentOnly )
-				return true;
-
-			var bookmarksA = this.bookmarks,
-				bookmarksB = otherImage.bookmarks;
-
-			if ( bookmarksA || bookmarksB )
-			{
-				if ( !bookmarksA || !bookmarksB || bookmarksA.length != bookmarksB.length )
-					return false;
-
-				for ( var i = 0 ; i < bookmarksA.length ; i++ )
-				{
-					var bookmarkA = bookmarksA[ i ],
-						bookmarkB = bookmarksB[ i ];
-
-					if (
-						bookmarkA.startOffset != bookmarkB.startOffset ||
-						bookmarkA.endOffset != bookmarkB.endOffset ||
-						!CKEDITOR.tools.arrayCompare( bookmarkA.start, bookmarkB.start ) ||
-						!CKEDITOR.tools.arrayCompare( bookmarkA.end, bookmarkB.end ) )
-					{
-						return false;
-					}
-				}
-			}
-
-			return true;
-		}
-	};
-
-	/**
-	 * @constructor Main logic for Redo/Undo feature.
-	 */
-	function UndoManager( editor )
-	{
-		this.editor = editor;
-
-		// Reset the undo stack.
-		this.reset();
-	}
-
-
-	var editingKeyCodes = { /*Backspace*/ 8:1, /*Delete*/ 46:1 },
-		modifierKeyCodes = { /*Shift*/ 16:1, /*Ctrl*/ 17:1, /*Alt*/ 18:1 },
-		navigationKeyCodes = { 37:1, 38:1, 39:1, 40:1 };  // Arrows: L, T, R, B
-
-	UndoManager.prototype =
-	{
-		/**
-		 * Process undo system regard keystrikes.
-		 * @param {CKEDITOR.dom.event} event
-		 */
-		type : function( event )
-		{
-			var keystroke = event && event.data.getKey(),
-				isModifierKey = keystroke in modifierKeyCodes,
-				isEditingKey = keystroke in editingKeyCodes,
-				wasEditingKey = this.lastKeystroke in editingKeyCodes,
-				sameAsLastEditingKey = isEditingKey && keystroke == this.lastKeystroke,
-				// Keystrokes which navigation through contents.
-				isReset = keystroke in navigationKeyCodes,
-				wasReset = this.lastKeystroke in navigationKeyCodes,
-
-				// Keystrokes which just introduce new contents.
-				isContent = ( !isEditingKey && !isReset ),
-
-				// Create undo snap for every different modifier key.
-				modifierSnapshot = ( isEditingKey && !sameAsLastEditingKey ),
-				// Create undo snap on the following cases:
-				// 1. Just start to type .
-				// 2. Typing some content after a modifier.
-				// 3. Typing some content after make a visible selection.
-				startedTyping = !( isModifierKey || this.typing )
-					|| ( isContent && ( wasEditingKey || wasReset ) );
-
-			if ( startedTyping || modifierSnapshot )
-			{
-				var beforeTypeImage = new Image( this.editor );
-
-				// Use setTimeout, so we give the necessary time to the
-				// browser to insert the character into the DOM.
-				CKEDITOR.tools.setTimeout( function()
-					{
-						var currentSnapshot = this.editor.getSnapshot();
-
-						// In IE, we need to remove the expando attributes.
-						if ( CKEDITOR.env.ie )
-							currentSnapshot = currentSnapshot.replace( /\s+data-cke-expando=".*?"/g, '' );
-
-						if ( beforeTypeImage.contents != currentSnapshot )
-						{
-							// It's safe to now indicate typing state.
-							this.typing = true;
-
-							// This's a special save, with specified snapshot
-							// and without auto 'fireChange'.
-							if ( !this.save( false, beforeTypeImage, false ) )
-								// Drop future snapshots.
-								this.snapshots.splice( this.index + 1, this.snapshots.length - this.index - 1 );
-
-							this.hasUndo = true;
-							this.hasRedo = false;
-
-							this.typesCount = 1;
-							this.modifiersCount = 1;
-
-							this.onChange();
-						}
-					},
-					0, this
-				);
-			}
-
-			this.lastKeystroke = keystroke;
-
-			// Create undo snap after typed too much (over 25 times).
-			if ( isEditingKey )
-			{
-				this.typesCount = 0;
-				this.modifiersCount++;
-
-				if ( this.modifiersCount > 25 )
-				{
-					this.save( false, null, false );
-					this.modifiersCount = 1;
-				}
-			}
-			else if ( !isReset )
-			{
-				this.modifiersCount = 0;
-				this.typesCount++;
-
-				if ( this.typesCount > 25 )
-				{
-					this.save( false, null, false );
-					this.typesCount = 1;
-				}
-			}
-
-		},
-
-		reset : function()	// Reset the undo stack.
-		{
-			/**
-			 * Remember last pressed key.
-			 */
-			this.lastKeystroke = 0;
-
-			/**
-			 * Stack for all the undo and redo snapshots, they're always created/removed
-			 * in consistency.
-			 */
-			this.snapshots = [];
-
-			/**
-			 * Current snapshot history index.
-			 */
-			this.index = -1;
-
-			this.limit = this.editor.config.undoStackSize || 20;
-
-			this.currentImage = null;
-
-			this.hasUndo = false;
-			this.hasRedo = false;
-
-			this.resetType();
-		},
-
-		/**
-		 * Reset all states about typing.
-		 * @see  UndoManager.type
-		 */
-		resetType : function()
-		{
-			this.typing = false;
-			delete this.lastKeystroke;
-			this.typesCount = 0;
-			this.modifiersCount = 0;
-		},
-		fireChange : function()
-		{
-			this.hasUndo = !!this.getNextImage( true );
-			this.hasRedo = !!this.getNextImage( false );
-			// Reset typing
-			this.resetType();
-			this.onChange();
-		},
-
-		/**
-		 * Save a snapshot of document image for later retrieve.
-		 */
-		save : function( onContentOnly, image, autoFireChange )
-		{
-			var snapshots = this.snapshots;
-
-			// Get a content image.
-			if ( !image )
-				image = new Image( this.editor );
-
-			// Do nothing if it was not possible to retrieve an image.
-			if ( image.contents === false )
-				return false;
-
-			// Check if this is a duplicate. In such case, do nothing.
-			if ( this.currentImage && image.equals( this.currentImage, onContentOnly ) )
-				return false;
-
-			// Drop future snapshots.
-			snapshots.splice( this.index + 1, snapshots.length - this.index - 1 );
-
-			// If we have reached the limit, remove the oldest one.
-			if ( snapshots.length == this.limit )
-				snapshots.shift();
-
-			// Add the new image, updating the current index.
-			this.index = snapshots.push( image ) - 1;
-
-			this.currentImage = image;
-
-			if ( autoFireChange !== false )
-				this.fireChange();
-			return true;
-		},
-
-		restoreImage : function( image )
-		{
-			this.editor.loadSnapshot( image.contents );
-
-			if ( image.bookmarks )
-				this.editor.getSelection().selectBookmarks( image.bookmarks );
-			else if ( CKEDITOR.env.ie )
-			{
-				// IE BUG: If I don't set the selection to *somewhere* after setting
-				// document contents, then IE would create an empty paragraph at the bottom
-				// the next time the document is modified.
-				var $range = this.editor.document.getBody().$.createTextRange();
-				$range.collapse( true );
-				$range.select();
-			}
-
-			this.index = image.index;
-
-			// Update current image with the actual editor
-			// content, since actualy content may differ from
-			// the original snapshot due to dom change. (#4622)
-			this.update();
-			this.fireChange();
-		},
-
-		// Get the closest available image.
-		getNextImage : function( isUndo )
-		{
-			var snapshots = this.snapshots,
-				currentImage = this.currentImage,
-				image, i;
-
-			if ( currentImage )
-			{
-				if ( isUndo )
-				{
-					for ( i = this.index - 1 ; i >= 0 ; i-- )
-					{
-						image = snapshots[ i ];
-						if ( !currentImage.equals( image, true ) )
-						{
-							image.index = i;
-							return image;
-						}
-					}
-				}
-				else
-				{
-					for ( i = this.index + 1 ; i < snapshots.length ; i++ )
-					{
-						image = snapshots[ i ];
-						if ( !currentImage.equals( image, true ) )
-						{
-							image.index = i;
-							return image;
-						}
-					}
-				}
-			}
-
-			return null;
-		},
-
-		/**
-		 * Check the current redo state.
-		 * @return {Boolean} Whether the document has previous state to
-		 *		retrieve.
-		 */
-		redoable : function()
-		{
-			return this.enabled && this.hasRedo;
-		},
-
-		/**
-		 * Check the current undo state.
-		 * @return {Boolean} Whether the document has future state to restore.
-		 */
-		undoable : function()
-		{
-			return this.enabled && this.hasUndo;
-		},
-
-		/**
-		 * Perform undo on current index.
-		 */
-		undo : function()
-		{
-			if ( this.undoable() )
-			{
-				this.save( true );
-
-				var image = this.getNextImage( true );
-				if ( image )
-					return this.restoreImage( image ), true;
-			}
-
-			return false;
-		},
-
-		/**
-		 * Perform redo on current index.
-		 */
-		redo : function()
-		{
-			if ( this.redoable() )
-			{
-				// Try to save. If no changes have been made, the redo stack
-				// will not change, so it will still be redoable.
-				this.save( true );
-
-				// If instead we had changes, we can't redo anymore.
-				if ( this.redoable() )
-				{
-					var image = this.getNextImage( false );
-					if ( image )
-						return this.restoreImage( image ), true;
-				}
-			}
-
-			return false;
-		},
-
-		/**
-		 * Update the last snapshot of the undo stack with the current editor content.
-		 */
-		update : function()
-		{
-			this.snapshots.splice( this.index, 1, ( this.currentImage = new Image( this.editor ) ) );
-		}
-	};
-})();
-
-/**
- * The number of undo steps to be saved. The higher this setting value the more
- * memory is used for it.
- * @name CKEDITOR.config.undoStackSize
- * @type Number
- * @default 20
- * @example
- * config.undoStackSize = 50;
- */
-
-/**
- * Fired when the editor is about to save an undo snapshot. This event can be
- * fired by plugins and customizations to make the editor saving undo snapshots.
- * @name CKEDITOR.editor#saveSnapshot
- * @event
- */
-
-/**
- * Fired before an undo image is to be taken. An undo image represents the
- * editor state at some point. It's saved into an undo store, so the editor is
- * able to recover the editor state on undo and redo operations.
- * @name CKEDITOR.editor#beforeUndoImage
- * @since 3.5.3
- * @see CKEDITOR.editor#afterUndoImage
- * @event
- */
-
-/**
- * Fired after an undo image is taken. An undo image represents the
- * editor state at some point. It's saved into an undo store, so the editor is
- * able to recover the editor state on undo and redo operations.
- * @name CKEDITOR.editor#afterUndoImage
- * @since 3.5.3
- * @see CKEDITOR.editor#beforeUndoImage
- * @event
- */