fix(frontend): フォーカスの挙動を修正 (#14158)

* fix(frontend): 直前のパターンを記録するように

* fix(frontend): フォーカス/タブ移動に関する挙動を調整 (#226)

Cherry-pick commit e8c030673326871edf3623cf2b8675d68f9e1b13

Co-authored-by: taiyme <53635909+taiyme@users.noreply.github.com>

* focusのデザイン修正

* move scripts

* Modalにfocus trapを追加

* 記録するホットキーはレートリミット式にする

* escキーのハンドリングをMkModalに統一

* fix

* enterで子メニューを開けるように

* lint

* fix focus trap

* improve switch accessibility

* 一部のmodalのフォーカストラップが外れない問題を修正

* fix

* fix

* Revert "記録するホットキーはレートリミット式にする"

This reverts commit 40a7509286.

* Revert "fix(frontend): 直前のパターンを記録するように"

This reverts commit 5372b25940.

* Revert "Revert "fix(frontend): 直前のパターンを記録するように""

This reverts commit a9bb52e799.

* Revert "Revert "記録するホットキーはレートリミット式にする""

This reverts commit bdac34273e.

* 試験的にCypressでのFocustrapを無効化

* fix

* fix focus-trap

* Update Changelog

* ✌️

* fix focustrap invocation logic

* スクロールがsticky headerを考慮するように

* 🎨

* スタイルの微調整

* 🎨

* remove deprecated key aliases

* focusElementが足りなかったので修正

* preview系にfocus時スタイルが足りなかったので修正

* `returnFocusElement` -> `returnFocusTo`

* lint

* Update packages/frontend/src/components/MkModalWindow.vue

* Apply suggestions from code review

Co-authored-by: taiy <53635909+taiyme@users.noreply.github.com>

* keydownイベントをまとめる

* use correct pesudo-element selector

* fix

* rename

---------

Co-authored-by: taiyme <53635909+taiyme@users.noreply.github.com>
Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

packages/frontend/src/scripts/hotkey.ts

@@ -2,6 +2,7 @@
  * SPDX-FileCopyrightText: syuilo and misskey-project
  * SPDX-License-Identifier: AGPL-3.0-only
  */
+import { getHTMLElementOrNull } from "@/scripts/get-dom-node-or-null.js";
 
 //#region types
 export type Keymap = Record<string, CallbackFunction | CallbackObject>;
@@ -30,8 +31,8 @@ type Action = {
 //#region consts
 const KEY_ALIASES = {
 	'esc': 'Escape',
-	'enter': ['Enter', 'NumpadEnter'],
-	'space': [' ', 'Spacebar'],
+	'enter': 'Enter',
+	'space': ' ',
 	'up': 'ArrowUp',
 	'down': 'ArrowDown',
 	'left': 'ArrowLeft',
@@ -44,6 +45,10 @@ const MODIFIER_KEYS = ['ctrl', 'alt', 'shift'];
 const IGNORE_ELEMENTS = ['input', 'textarea'];
 //#endregion
 
+//#region store
+let latestHotkey: Pattern & { callback: CallbackFunction } | null = null;
+//#endregion
+
 //#region impl
 export const makeHotkey = (keymap: Keymap) => {
 	const actions = parseKeymap(keymap);
@@ -51,13 +56,14 @@ export const makeHotkey = (keymap: Keymap) => {
 		if ('pswp' in window && window.pswp != null) return;
 		if (document.activeElement != null) {
 			if (IGNORE_ELEMENTS.includes(document.activeElement.tagName.toLowerCase())) return;
-			if ((document.activeElement as HTMLElement).isContentEditable) return;
+			if (getHTMLElementOrNull(document.activeElement)?.isContentEditable) return;
 		}
-		for (const { patterns, callback, options } of actions) {
-			if (matchPatterns(ev, patterns, options)) {
+		for (const action of actions) {
+			if (matchPatterns(ev, action)) {
 				ev.preventDefault();
 				ev.stopPropagation();
-				callback(ev);
+				action.callback(ev);
+				storePattern(ev, action.callback);
 			}
 		}
 	};
@@ -102,10 +108,21 @@ const parseOptions = (rawCallback: Keymap[keyof Keymap]) => {
 	return { ...defaultOptions } as const satisfies Action['options'];
 };
 
-const matchPatterns = (ev: KeyboardEvent, patterns: Action['patterns'], options: Action['options']) => {
+const matchPatterns = (ev: KeyboardEvent, action: Action) => {
+	const { patterns, options, callback } = action;
 	if (ev.repeat && !options.allowRepeat) return false;
 	const key = ev.key.toLowerCase();
 	return patterns.some(({ which, ctrl, shift, alt }) => {
+		if (
+			latestHotkey != null &&
+			latestHotkey.which.includes(key) &&
+			latestHotkey.ctrl === ctrl &&
+			latestHotkey.alt === alt &&
+			latestHotkey.shift === shift &&
+			latestHotkey.callback === callback
+		) {
+			return false;
+		}
 		if (!which.includes(key)) return false;
 		if (ctrl !== (ev.ctrlKey || ev.metaKey)) return false;
 		if (alt !== ev.altKey) return false;
@@ -114,6 +131,26 @@ const matchPatterns = (ev: KeyboardEvent, patterns: Action['patterns'], options:
 	});
 };
 
+let lastHotKeyStoreTimer: number | null = null;
+
+const storePattern = (ev: KeyboardEvent, callback: CallbackFunction) => {
+	if (lastHotKeyStoreTimer != null) {
+		clearTimeout(lastHotKeyStoreTimer);
+	}
+
+	latestHotkey = {
+		which: [ev.key.toLowerCase()],
+		ctrl: ev.ctrlKey || ev.metaKey,
+		alt: ev.altKey,
+		shift: ev.shiftKey,
+		callback,
+	};
+
+	lastHotKeyStoreTimer = window.setTimeout(() => {
+		latestHotkey = null;
+	}, 500);
+};
+
 const parseKeyCode = (input?: string | null) => {
 	if (input == null) return [];
 	const raw = getValueByKey(KEY_ALIASES, input);