Desktop: Improve focus handling for notebook edit, share, and sync dialogs

packages/app-desktop/gui/Dialog.tsx

@@ -1,49 +1,46 @@
-import styled from 'styled-components';
-
-const DialogModalLayer = styled.div`
-	z-index: 9999;
-	display: flex;
-	position: fixed;
-	top: 0;
-	left: 0;
-	width: 100%;
-	height: 100%;
-	background-color: rgba(0,0,0,0.6);
-	align-items: flex-start;
-	justify-content: center;
-
-	overflow: auto;
-	scrollbar-width: none;
-	&::-webkit-scrollbar {
-		display: none;
-	}
-`;
-
-const DialogRoot = styled.div`
-	background-color: ${props => props.theme.backgroundColor};
-	padding: 16px;
-	box-shadow: 6px 6px 20px rgba(0,0,0,0.5);
-	margin: 20px;
-	min-height: fit-content;
-	display: flex;
-	flex-direction: column;
-	border-radius: 10px;
-`;
+import * as React from 'react';
+import { ReactElement, ReactEventHandler, useCallback, useEffect, useRef, useState } from 'react';
 
 interface Props {
-	// eslint-disable-next-line @typescript-eslint/ban-types -- Old code before rule was applied
-	renderContent: Function;
+	renderContent: ()=> ReactElement;
 	className?: string;
-	// eslint-disable-next-line @typescript-eslint/ban-types -- Old code before rule was applied
-	onClose?: Function;
+	onClose?: ()=> void;
 }
 
 export default function Dialog(props: Props) {
+	const [dialogElement, setDialogRef] = useState<HTMLDialogElement>();
+
+	useEffect(() => {
+		if (!dialogElement) return;
+
+		// Use .showModal instead of the open attribute: .showModal correctly
+		// traps the keyboard focus in the dialog
+		dialogElement.showModal();
+	}, [dialogElement]);
+
+	const onCloseRef = useRef(props.onClose);
+	onCloseRef.current = props.onClose;
+
+	const onCancel: ReactEventHandler<HTMLDialogElement> = useCallback((event) => {
+		const canCancel = !!onCloseRef.current;
+		if (canCancel) {
+			// Prevents [Escape] from closing the dialog. In many places, this is handled
+			// elsewhere.
+			// See https://stackoverflow.com/a/61021326
+			event.preventDefault();
+		}
+	}, []);
+
 	return (
-		<DialogModalLayer className={props.className}>
-			<DialogRoot>
+		<dialog
+			ref={setDialogRef}
+			className={`dialog-modal-layer ${props.className}`}
+			onClose={props.onClose}
+			onCancel={onCancel}
+		>
+			<div className='content'>
 				{props.renderContent()}
-			</DialogRoot>
-		</DialogModalLayer>
+			</div>
+		</dialog>
 	);
 }

packages/app-desktop/gui/EditFolderDialog/IconSelector.tsx

@@ -21,7 +21,7 @@ interface Props {
 export const IconSelector = (props: Props) => {
 	const [emojiButtonClassReady, setEmojiButtonClassReady] = useState<boolean>(false);
 	const [picker, setPicker] = useState<EmojiButton>();
-	const buttonRef = useRef(null);
+	const buttonRef = useRef<HTMLButtonElement>(null);
 
 	useAsyncEffect(async (event: AsyncEffectEvent) => {
 		const loadScripts = async () => {
@@ -61,6 +61,7 @@ export const IconSelector = (props: Props) => {
 		// eslint-disable-next-line @typescript-eslint/no-explicit-any -- Old code before rule was applied
 		const p: EmojiButton = new (window as any).EmojiButton({
 			zIndex: 10000,
+			rootElement: buttonRef.current?.parentElement,
 		});
 
 		const onEmoji = (selection: FolderIcon) => {
@@ -73,6 +74,7 @@ export const IconSelector = (props: Props) => {
 
 		return () => {
 			p.off('emoji', onEmoji);
+			p.destroyPicker();
 		};
 	}, [emojiButtonClassReady, props.onChange]);
 

packages/app-desktop/gui/SyncWizard/Dialog.tsx

@@ -140,17 +140,16 @@ type SyncTargetInfoName = 'dropbox' | 'onedrive' | 'joplinCloud';
 export default function(props: Props) {
 	const joplinCloudDescriptionRef = useRef(null);
 
-	// eslint-disable-next-line @typescript-eslint/ban-types -- Old code before rule was applied
-	function closeDialog(dispatch: Function) {
-		dispatch({
+	const closeDialog = useCallback(() => {
+		props.dispatch({
 			type: 'DIALOG_CLOSE',
 			name: 'syncWizard',
 		});
-	}
+	}, [props.dispatch]);
 
 	const onButtonRowClick = useCallback(() => {
-		closeDialog(props.dispatch);
-	}, [props.dispatch]);
+		closeDialog();
+	}, [closeDialog]);
 
 	const { height: descriptionHeight } = useElementSize(joplinCloudDescriptionRef);
 
@@ -184,12 +183,12 @@ export default function(props: Props) {
 
 		Setting.setValue('sync.target', route.target);
 		await Setting.saveAll();
-		closeDialog(props.dispatch);
+		closeDialog();
 		props.dispatch({
 			type: 'NAV_GO',
 			routeName: route.name,
 		});
-	}, [props.dispatch]);
+	}, [props.dispatch, closeDialog]);
 
 	function renderSelectArea(info: SyncTargetInfo) {
 		return (
@@ -229,7 +228,7 @@ export default function(props: Props) {
 	}
 
 	const onSelfHostingClick = useCallback(() => {
-		closeDialog(props.dispatch);
+		closeDialog();
 
 		props.dispatch({
 			type: 'NAV_GO',
@@ -238,7 +237,7 @@ export default function(props: Props) {
 				defaultSection: 'sync',
 			},
 		});
-	}, [props.dispatch]);
+	}, [props.dispatch, closeDialog]);
 
 	function renderContent() {
 		// eslint-disable-next-line @typescript-eslint/no-explicit-any -- Old code before rule was applied
@@ -278,6 +277,6 @@ export default function(props: Props) {
 	}
 
 	return (
-		<Dialog renderContent={renderDialogWrapper}/>
+		<Dialog onClose={closeDialog} renderContent={renderDialogWrapper}/>
 	);
 }

packages/app-desktop/gui/styles/dialog-modal-layer.scss

@@ -0,0 +1,28 @@
+
+.dialog-modal-layer {
+	display: flex;
+	top: 0;
+	left: 0;
+	width: 100%;
+	height: 100%;
+	align-items: flex-start;
+	justify-content: center;
+	border: none;
+	margin: 0;
+	background-color: transparent;
+
+	> .content {
+		background-color: var(--joplin-background-color);
+		padding: 16px;
+		box-shadow: 6px 6px 20px rgba(0,0,0,0.5);
+		margin: 20px;
+		min-height: fit-content;
+		display: flex;
+		flex-direction: column;
+		border-radius: 10px;
+	}
+
+	&::backdrop {
+		background-color: rgba(0,0,0,0.6);
+	}
+}

packages/app-desktop/gui/styles/index.scss

@@ -0,0 +1,2 @@
+
+@use './dialog-modal-layer.scss';

packages/app-desktop/style.scss

@@ -10,4 +10,5 @@
 @use 'gui/NoteListHeader/style.scss' as note-list-header;
 @use 'gui/TrashNotification/style.scss' as trash-notification;
 @use 'gui/Sidebar/style.scss' as sidebar-styles;
+@use 'gui/styles/index.scss';
 @use 'main.scss' as main;