Rewrite remove-format to typescript.

.gitignore

@@ -60,6 +60,7 @@ packages/ckeditor5-minimap/src/**/*.js
 packages/ckeditor5-page-break/src/**/*.js
 packages/ckeditor5-paragraph/src/**/*.js
 packages/ckeditor5-paste-from-office/src/**/*.js
+packages/ckeditor5-remove-format/src/**/*.js
 packages/ckeditor5-restricted-editing/src/**/*.js
 packages/ckeditor5-select-all/src/**/*.js
 packages/ckeditor5-typing/src/**/*.js

packages/ckeditor5-remove-format/package.json

@@ -10,7 +10,7 @@
     "ckeditor5-plugin",
     "ckeditor5-dll"
   ],
-  "main": "src/index.js",
+  "main": "src/index.ts",
   "dependencies": {
     "ckeditor5": "^36.0.1"
   },
@@ -30,6 +30,7 @@
     "@ckeditor/ckeditor5-typing": "^36.0.1",
     "@ckeditor/ckeditor5-undo": "^36.0.1",
     "@ckeditor/ckeditor5-utils": "^36.0.1",
+    "typescript": "^4.8.4",
     "webpack": "^5.58.1",
     "webpack-cli": "^4.9.0"
   },
@@ -48,13 +49,16 @@
   },
   "files": [
     "lang",
-    "src",
+    "src/**/*.js",
+    "src/**/*.d.ts",
     "theme",
     "build",
     "ckeditor5-metadata.json",
     "CHANGELOG.md"
   ],
   "scripts": {
-    "dll:build": "webpack"
+    "dll:build": "webpack",
+    "build": "tsc -p ./tsconfig.release.json",
+    "postversion": "npm run build"
   }
 }

packages/ckeditor5-remove-format/src/index.ts

@@ -0,0 +1,12 @@
+/**
+ * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/**
+ * @module remove-format
+ */
+
+export { default as RemoveFormat } from './removeformat';
+export { default as RemoveFormatEditing } from './removeformatediting';
+export { default as RemoveFormatUI } from './removeformatui';

packages/ckeditor5-remove-format/src/removeformat.ts

@@ -0,0 +1,43 @@
+/**
+ * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/**
+ * @module remove-format/removeformat
+ */
+
+import { Plugin, type PluginDependencies } from 'ckeditor5/src/core';
+
+import RemoveFormatUI from './removeformatui';
+import RemoveFormatEditing from './removeformatediting';
+
+/**
+ * The remove format plugin.
+ *
+ * This is a "glue" plugin which loads the {@link module:remove-format/removeformatediting~RemoveFormatEditing}
+ * and {@link module:remove-format/removeformatui~RemoveFormatUI} plugins.
+ *
+ * For a detailed overview, check out the {@glink features/remove-format remove format} feature documentation.
+ */
+export default class RemoveFormat extends Plugin {
+	/**
+	 * @inheritDoc
+	 */
+	public static get requires(): PluginDependencies {
+		return [ RemoveFormatEditing, RemoveFormatUI ];
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public static get pluginName(): 'RemoveFormat' {
+		return 'RemoveFormat';
+	}
+}
+
+declare module '@ckeditor/ckeditor5-core' {
+	interface PluginsMap {
+		[ RemoveFormat.pluginName ]: RemoveFormat;
+	}
+}

packages/ckeditor5-remove-format/src/removeformatcommand.ts

@@ -0,0 +1,118 @@
+/**
+ * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/**
+ * @module remove-format/removeformatcommand
+ */
+
+import type { DocumentSelection, Item, Schema } from 'ckeditor5/src/engine';
+import { Command } from 'ckeditor5/src/core';
+import { first } from 'ckeditor5/src/utils';
+
+/**
+ * The remove format command.
+ *
+ * It is used by the {@link module:remove-format/removeformat~RemoveFormat remove format feature}
+ * to clear the formatting in the selection.
+ *
+ * ```ts
+ * editor.execute( 'removeFormat' );
+ * ```
+ */
+export default class RemoveFormatCommand extends Command {
+	declare public value: boolean;
+
+	/**
+	 * @inheritDoc
+	 */
+	public override refresh(): void {
+		const model = this.editor.model;
+
+		this.isEnabled = !!first( this._getFormattingItems( model.document.selection, model.schema ) );
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public override execute(): void {
+		const model = this.editor.model;
+		const schema = model.schema;
+
+		model.change( writer => {
+			for ( const item of this._getFormattingItems( model.document.selection, schema ) ) {
+				if ( item.is( 'selection' ) ) {
+					for ( const attributeName of this._getFormattingAttributes( item, schema ) ) {
+						writer.removeSelectionAttribute( attributeName );
+					}
+				} else {
+					// Workaround for items with multiple removable attributes. See
+					// https://github.com/ckeditor/ckeditor5-remove-format/pull/1#pullrequestreview-220515609
+					const itemRange = writer.createRangeOn( item );
+
+					for ( const attributeName of this._getFormattingAttributes( item, schema ) ) {
+						writer.removeAttribute( attributeName, itemRange );
+					}
+				}
+			}
+		} );
+	}
+
+	/**
+	 * Returns an iterable of items in a selection (including the selection itself) that have formatting model
+	 * attributes to be removed by the feature.
+	 *
+	 * @param schema The schema describing the item.
+	 */
+	private* _getFormattingItems( selection: DocumentSelection, schema: Schema ) {
+		const itemHasRemovableFormatting = ( item: Item | DocumentSelection ) => {
+			return !!first( this._getFormattingAttributes( item, schema ) );
+		};
+
+		// Check formatting on selected items that are not blocks.
+		for ( const curRange of selection.getRanges() ) {
+			for ( const item of curRange.getItems() ) {
+				if ( !schema.isBlock( item ) && itemHasRemovableFormatting( item ) ) {
+					yield item;
+				}
+			}
+		}
+
+		// Check formatting from selected blocks.
+		for ( const block of selection.getSelectedBlocks() ) {
+			if ( itemHasRemovableFormatting( block ) ) {
+				yield block;
+			}
+		}
+
+		// Finally the selection might be formatted as well, so make sure to check it.
+		if ( itemHasRemovableFormatting( selection ) ) {
+			yield selection;
+		}
+	}
+
+	/**
+	 * Returns an iterable of formatting attributes of a given model item.
+	 *
+	 * **Note:** Formatting items have the `isFormatting` property set to `true`.
+	 *
+	 * @param schema The schema describing the item.
+	 * @returns The names of formatting attributes found in a given item.
+	 */
+	private* _getFormattingAttributes( item: Item | DocumentSelection, schema: Schema ) {
+		for ( const [ attributeName ] of item.getAttributes() ) {
+			const attributeProperties = schema.getAttributeProperties( attributeName );
+
+			if ( attributeProperties && attributeProperties.isFormatting ) {
+				yield attributeName;
+			}
+		}
+	}
+}
+
+declare module '@ckeditor/ckeditor5-core' {
+	interface CommandsMap {
+		removeFormat: RemoveFormatCommand;
+	}
+}

packages/ckeditor5-remove-format/src/removeformatediting.ts

@@ -0,0 +1,41 @@
+/**
+ * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/**
+ * @module remove-format/removeformatediting
+ */
+
+import { Plugin } from 'ckeditor5/src/core';
+
+import RemoveFormatCommand from './removeformatcommand';
+
+/**
+ * The remove format editing plugin.
+ *
+ * It registers the {@link module:remove-format/removeformatcommand~RemoveFormatCommand removeFormat} command.
+ */
+export default class RemoveFormatEditing extends Plugin {
+	/**
+	 * @inheritDoc
+	 */
+	public static get pluginName(): 'RemoveFormatEditing' {
+		return 'RemoveFormatEditing';
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public init(): void {
+		const editor = this.editor;
+
+		editor.commands.add( 'removeFormat', new RemoveFormatCommand( editor ) );
+	}
+}
+
+declare module '@ckeditor/ckeditor5-core' {
+	interface PluginsMap {
+		[ RemoveFormatEditing.pluginName ]: RemoveFormatEditing;
+	}
+}

packages/ckeditor5-remove-format/src/removeformatui.ts

@@ -0,0 +1,65 @@
+/**
+ * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/**
+ * @module remove-format/removeformatui
+ */
+
+import { Plugin } from 'ckeditor5/src/core';
+import { ButtonView } from 'ckeditor5/src/ui';
+
+import type RemoveFormatCommand from './removeformatcommand';
+
+import removeFormatIcon from '../theme/icons/remove-format.svg';
+
+const REMOVE_FORMAT = 'removeFormat';
+
+/**
+ * The remove format UI plugin. It registers the `'removeFormat'` button which can be
+ * used in the toolbar.
+ */
+export default class RemoveFormatUI extends Plugin {
+	/**
+	 * @inheritDoc
+	 */
+	public static get pluginName(): 'RemoveFormatUI' {
+		return 'RemoveFormatUI';
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public init(): void {
+		const editor = this.editor;
+		const t = editor.t;
+
+		editor.ui.componentFactory.add( REMOVE_FORMAT, locale => {
+			const command: RemoveFormatCommand = editor.commands.get( REMOVE_FORMAT )!;
+			const view = new ButtonView( locale );
+
+			view.set( {
+				label: t( 'Remove Format' ),
+				icon: removeFormatIcon,
+				tooltip: true
+			} );
+
+			view.bind( 'isOn', 'isEnabled' ).to( command, 'value', 'isEnabled' );
+
+			// Execute the command.
+			this.listenTo( view, 'execute', () => {
+				editor.execute( REMOVE_FORMAT );
+				editor.editing.view.focus();
+			} );
+
+			return view;
+		} );
+	}
+}
+
+declare module '@ckeditor/ckeditor5-core' {
+	interface PluginsMap {
+		[ RemoveFormatUI.pluginName ]: RemoveFormatUI;
+	}
+}

packages/ckeditor5-remove-format/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "extends": "ckeditor5/tsconfig.json",
+  "include": [
+    "src",
+    "../../typings"
+  ]
+}

packages/ckeditor5-remove-format/tsconfig.release.json

@@ -0,0 +1,10 @@
+{
+  "extends": "../../tsconfig.release.json",
+  "include": [
+    "./src/",
+    "../../typings/"
+  ],
+  "exclude": [
+    "./tests/"
+  ]
+}