i/7794: Introduce Insert Image via URL feature.

packages/ckeditor5-image/lang/contexts.json

@@ -15,5 +15,10 @@
 	"Resize image to %0": "The label used for the standalone resize options buttons in the image toolbar",
 	"Resize image to the original size": "The accessibility label of the standalone image resize reset option button in the image toolbar for the screen readers",
 	"Original": "Default label for the resize option that resets the size of the image.",
-	"Image resize list": "The accessibility label of the image resize dropdown list for the screen readers."
+	"Image resize list": "The accessibility label of the image resize dropdown list for the screen readers.",
+	"Insert": "The label of submit form button if image src URL input has no value",
+	"Update": "The label of submit form button if image src URL input has value",
+	"Cancel": "The label of cancel form button",
+	"Insert image via URL": "The input label for the Insert image via URL form",
+	"Paste the image source URL.": "The tip label below the Insert image via URL form"
 }

packages/ckeditor5-image/package.json

@@ -22,6 +22,7 @@
     "@ckeditor/ckeditor5-basic-styles": "^21.0.0",
     "@ckeditor/ckeditor5-block-quote": "^21.0.0",
     "@ckeditor/ckeditor5-cloud-services": "^21.0.0",
+    "@ckeditor/ckeditor5-ckfinder": "^21.0.0",
     "@ckeditor/ckeditor5-editor-classic": "^21.0.0",
     "@ckeditor/ckeditor5-enter": "^21.0.0",
     "@ckeditor/ckeditor5-easy-image": "^21.0.0",

packages/ckeditor5-image/src/imageupload/imageuploadcommand.js

@@ -44,7 +44,10 @@ export default class ImageUploadCommand extends Command {
 	 * @inheritDoc
 	 */
 	refresh() {
-		this.isEnabled = isImageAllowed( this.editor.model );
+		const imageElement = this.editor.model.document.selection.getSelectedElement();
+		const isImage = imageElement && imageElement.name === 'image' || false;
+
+		this.isEnabled = isImageAllowed( this.editor.model ) || isImage;
 	}
 
 	/**

packages/ckeditor5-image/src/imageupload/imageuploadui.js

@@ -8,56 +8,155 @@
  */
 
 import Plugin from '@ckeditor/ckeditor5-core/src/plugin';
+import ImageUploadPanelView from './ui/imageuploadpanelview';
+
 import FileDialogButtonView from '@ckeditor/ckeditor5-upload/src/ui/filedialogbuttonview';
+import { createImageTypeRegExp, prepareIntegrations } from './utils';
+
 import imageIcon from '@ckeditor/ckeditor5-core/theme/icons/image.svg';
-import { createImageTypeRegExp } from './utils';
+
+import { isImage } from '../image/utils';
 
 /**
  * The image upload button plugin.
  *
  * For a detailed overview, check the {@glink features/image-upload/image-upload Image upload feature} documentation.
  *
- * Adds the `'imageUpload'` button to the {@link module:ui/componentfactory~ComponentFactory UI component factory}.
+ * Adds the `'imageUpload'` dropdown to the {@link module:ui/componentfactory~ComponentFactory UI component factory}.
  *
  * @extends module:core/plugin~Plugin
  */
 export default class ImageUploadUI extends Plugin {
+	/**
+	 * @inheritDoc
+	 */
+	static get pluginName() {
+		return 'ImageUploadUI';
+	}
+
 	/**
 	 * @inheritDoc
 	 */
 	init() {
 		const editor = this.editor;
-		const t = editor.t;
+		const command = editor.commands.get( 'imageUpload' );
 
-		// Setup `imageUpload` button.
 		editor.ui.componentFactory.add( 'imageUpload', locale => {
-			const view = new FileDialogButtonView( locale );
-			const command = editor.commands.get( 'imageUpload' );
-			const imageTypes = editor.config.get( 'image.upload.types' );
-			const imageTypesRegExp = createImageTypeRegExp( imageTypes );
+			const imageUploadView = new ImageUploadPanelView( locale, prepareIntegrations( editor ) );
+
+			const dropdownView = imageUploadView.dropdownView;
+			const panelView = dropdownView.panelView;
+			const splitButtonView = dropdownView.buttonView;
 
-			view.set( {
-				acceptedType: imageTypes.map( type => `image/${ type }` ).join( ',' ),
-				allowMultipleFiles: true
-			} );
+			splitButtonView.actionView = this._createFileDialogButtonView( locale );
 
-			view.buttonView.set( {
-				label: t( 'Insert image' ),
-				icon: imageIcon,
-				tooltip: true
-			} );
+			panelView.children.add( imageUploadView );
 
-			view.buttonView.bind( 'isEnabled' ).to( command );
+			return this._setUpDropdown( dropdownView, imageUploadView, command );
+		} );
+	}
+
+	/**
+	 * Sets up the dropdown view.
+	 *
+	 * @param {module:ui/dropdown/dropdownview~DropdownView} dropdownView A dropdownView.
+	 * @param {module:image/imageupload/ui/imageuploadpanelview~ImageUploadPanelView} imageUploadView An imageUploadView.
+	 * @param {module:core/command~Command} command An imageUpload command
+	 *
+	 * @private
+	 * @returns {module:ui/dropdown/dropdownview~DropdownView}
+	 */
+	_setUpDropdown( dropdownView, imageUploadView, command ) {
+		const editor = this.editor;
+		const t = editor.t;
+		const insertButtonView = imageUploadView.insertButtonView;
+
+		dropdownView.bind( 'isEnabled' ).to( command );
 
-			view.on( 'done', ( evt, files ) => {
-				const imagesToUpload = Array.from( files ).filter( file => imageTypesRegExp.test( file.type ) );
+		dropdownView.on( 'change:isOpen', () => {
+			const selectedElement = editor.model.document.selection.getSelectedElement();
 
-				if ( imagesToUpload.length ) {
-					editor.execute( 'imageUpload', { file: imagesToUpload } );
+			if ( dropdownView.isOpen ) {
+				imageUploadView.focus();
+
+				if ( isImage( selectedElement ) ) {
+					imageUploadView.imageURLInputValue = selectedElement.getAttribute( 'src' );
+					insertButtonView.label = t( 'Update' );
+				} else {
+					imageUploadView.imageURLInputValue = '';
+					insertButtonView.label = t( 'Insert' );
 				}
-			} );
+			}
+		} );
 
-			return view;
+		imageUploadView.delegate( 'submit', 'cancel' ).to( dropdownView );
+		this.delegate( 'cancel' ).to( dropdownView );
+
+		dropdownView.on( 'submit', () => {
+			closePanel();
+			onSubmit();
+		} );
+
+		dropdownView.on( 'cancel', () => {
+			closePanel();
+		} );
+
+		function onSubmit() {
+			const selectedElement = editor.model.document.selection.getSelectedElement();
+
+			if ( isImage( selectedElement ) ) {
+				editor.model.change( writer => {
+					writer.setAttribute( 'src', imageUploadView.imageURLInputValue, selectedElement );
+					writer.removeAttribute( 'srcset', selectedElement );
+					writer.removeAttribute( 'sizes', selectedElement );
+				} );
+			} else {
+				editor.execute( 'imageInsert', { source: imageUploadView.imageURLInputValue } );
+			}
+		}
+
+		function closePanel() {
+			editor.editing.view.focus();
+			dropdownView.isOpen = false;
+		}
+
+		return dropdownView;
+	}
+
+	/**
+	 * Creates and sets up file dialog button view.
+	 *
+	 * @param {module:utils/locale~Locale} locale The localization services instance.
+	 *
+	 * @private
+	 * @returns {module:upload/ui/filedialogbuttonview~FileDialogButtonView}
+	 */
+	_createFileDialogButtonView( locale ) {
+		const editor = this.editor;
+		const t = locale.t;
+		const imageTypes = editor.config.get( 'image.upload.types' );
+		const fileDialogButtonView = new FileDialogButtonView( locale );
+		const imageTypesRegExp = createImageTypeRegExp( imageTypes );
+
+		fileDialogButtonView.set( {
+			acceptedType: imageTypes.map( type => `image/${ type }` ).join( ',' ),
+			allowMultipleFiles: true
+		} );
+
+		fileDialogButtonView.buttonView.set( {
+			label: t( 'Insert image' ),
+			icon: imageIcon,
+			tooltip: true
 		} );
+
+		fileDialogButtonView.on( 'done', ( evt, files ) => {
+			const imagesToUpload = Array.from( files ).filter( file => imageTypesRegExp.test( file.type ) );
+
+			if ( imagesToUpload.length ) {
+				editor.execute( 'imageUpload', { file: imagesToUpload } );
+			}
+		} );
+
+		return fileDialogButtonView;
 	}
 }

packages/ckeditor5-image/src/imageupload/ui/imageuploadformrowview.js

@@ -0,0 +1,103 @@
+/**
+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
+ */
+
+/**
+ * @module image/imageupload/ui/imageuploadformrowview
+ */
+
+import View from '@ckeditor/ckeditor5-ui/src/view';
+
+import '../../../theme/imageuploadformrowview.css';
+
+/**
+ * The class representing a single row in a complex form,
+ * used by {@link module:image/imageupload/ui/imageuploadpanelview~ImageUploadPanelView}.
+ *
+ * **Note**: For now this class is private. When more use cases arrive (beyond ckeditor5-table and ckeditor5-image),
+ * it will become a component in ckeditor5-ui.
+ *
+ * @private
+ * @extends module:ui/view~View
+ */
+export default class ImageUploadFormRowView extends View {
+	/**
+	 * Creates an instance of the form row class.
+	 *
+	 * @param {module:utils/locale~Locale} locale The locale instance.
+	 * @param {Object} options
+	 * @param {Array.<module:ui/view~View>} [options.children]
+	 * @param {String} [options.class]
+	 * @param {module:ui/view~View} [options.labelView] When passed, the row gets the `group` and `aria-labelledby`
+	 * DOM attributes and gets described by the label.
+	 */
+	constructor( locale, options = {} ) {
+		super( locale );
+
+		const bind = this.bindTemplate;
+
+		/**
+		 * An additional CSS class added to the {@link #element}.
+		 *
+		 * @observable
+		 * @member {String} #class
+		 */
+		this.set( 'class', options.class || null );
+
+		/**
+		 * A collection of row items (buttons, dropdowns, etc.).
+		 *
+		 * @readonly
+		 * @member {module:ui/viewcollection~ViewCollection}
+		 */
+		this.children = this.createCollection();
+
+		if ( options.children ) {
+			options.children.forEach( child => this.children.add( child ) );
+		}
+
+		/**
+		 * The role property reflected by the `role` DOM attribute of the {@link #element}.
+		 *
+		 * **Note**: Used only when a `labelView` is passed to constructor `options`.
+		 *
+		 * @private
+		 * @observable
+		 * @member {String} #role
+		 */
+		this.set( '_role', null );
+
+		/**
+		 * The ARIA property reflected by the `aria-labelledby` DOM attribute of the {@link #element}.
+		 *
+		 * **Note**: Used only when a `labelView` is passed to constructor `options`.
+		 *
+		 * @private
+		 * @observable
+		 * @member {String} #ariaLabelledBy
+		 */
+		this.set( '_ariaLabelledBy', null );
+
+		if ( options.labelView ) {
+			this.set( {
+				_role: 'group',
+				_ariaLabelledBy: options.labelView.id
+			} );
+		}
+
+		this.setTemplate( {
+			tag: 'div',
+			attributes: {
+				class: [
+					'ck',
+					'ck-form__row',
+					bind.to( 'class' )
+				],
+				role: bind.to( '_role' ),
+				'aria-labelledby': bind.to( '_ariaLabelledBy' )
+			},
+			children: this.children
+		} );
+	}
+}