refactor(frontend): カスタムディレクティブの型付け (#16659)

* refactor(frontend): カスタムディレクティブの型付け

* fix

13 files changed, 158 insertions, 94 deletions

diff --git a/packages/frontend/src/directives/adaptive-bg.ts b/packages/frontend/src/directives/adaptive-bg.ts
index a68cd1b18b..25e9ae1c9e 100644
--- a/packages/frontend/src/directives/adaptive-bg.ts
+++ b/packages/frontend/src/directives/adaptive-bg.ts
@@ -6,8 +6,8 @@
 import type { Directive } from 'vue';
 import { getBgColor } from '@/utility/get-bg-color.js';
 
-export default {
-	mounted(src, binding, vn) {
+export const adaptiveBgDirective = {
+	mounted(src) {
 		const parentBg = getBgColor(src.parentElement) ?? 'transparent';
 
 		const myBg = window.getComputedStyle(src).backgroundColor;
@@ -18,4 +18,4 @@ export default {
 			src.style.backgroundColor = myBg;
 		}
 	},
-} as Directive;
+} as Directive<HTMLElement>;
diff --git a/packages/frontend/src/directives/adaptive-border.ts b/packages/frontend/src/directives/adaptive-border.ts
index 8072a1ffd9..749861fd94 100644
--- a/packages/frontend/src/directives/adaptive-border.ts
+++ b/packages/frontend/src/directives/adaptive-border.ts
@@ -9,8 +9,8 @@ import { globalEvents } from '@/events.js';
 
 const handlerMap = new WeakMap<any, any>();
 
-export default {
-	mounted(src, binding, vn) {
+export const adaptiveBorderDirective = {
+	mounted(src) {
 		function calc() {
 			const parentBg = getBgColor(src.parentElement) ?? 'transparent';
 
@@ -30,7 +30,7 @@ export default {
 		globalEvents.on('themeChanged', calc);
 	},
 
-	unmounted(src, binding, vn) {
+	unmounted(src) {
 		globalEvents.off('themeChanged', handlerMap.get(src));
 	},
-} as Directive;
+} as Directive<HTMLElement>;
diff --git a/packages/frontend/src/directives/anim.ts b/packages/frontend/src/directives/anim.ts
index ad0cb5ed81..a165fa11e0 100644
--- a/packages/frontend/src/directives/anim.ts
+++ b/packages/frontend/src/directives/anim.ts
@@ -5,8 +5,8 @@
 
 import type { Directive } from 'vue';
 
-export default {
-	beforeMount(src, binding, vn) {
+export const animDirective = {
+	beforeMount(src) {
 		src.style.opacity = '0';
 		src.style.transform = 'scale(0.9)';
 		// ページネーションと相性が悪いので
@@ -14,10 +14,10 @@ export default {
 		src.classList.add('_zoom');
 	},
 
-	mounted(src, binding, vn) {
+	mounted(src) {
 		window.setTimeout(() => {
 			src.style.opacity = '1';
 			src.style.transform = 'none';
 		}, 1);
 	},
-} as Directive;
+} as Directive<HTMLElement>;
diff --git a/packages/frontend/src/directives/appear.ts b/packages/frontend/src/directives/appear.ts
index f5fec108dc..f714871420 100644
--- a/packages/frontend/src/directives/appear.ts
+++ b/packages/frontend/src/directives/appear.ts
@@ -6,12 +6,16 @@
 import { throttle } from 'throttle-debounce';
 import type { Directive } from 'vue';
 
-export default {
-	mounted(src, binding, vn) {
+interface HTMLElementWithObserver extends HTMLElement {
+	_observer_?: IntersectionObserver;
+}
+
+export const appearDirective = {
+	mounted(src, binding) {
 		const fn = binding.value;
 		if (fn == null) return;
 
-		const check = throttle(1000, (entries) => {
+		const check = throttle<IntersectionObserverCallback>(1000, (entries) => {
 			if (entries.some(entry => entry.isIntersecting)) {
 				fn();
 			}
@@ -24,7 +28,7 @@ export default {
 		src._observer_ = observer;
 	},
 
-	unmounted(src, binding, vn) {
+	unmounted(src) {
 		if (src._observer_) src._observer_.disconnect();
 	},
-} as Directive;
+} as Directive<HTMLElementWithObserver, () => void>;
diff --git a/packages/frontend/src/directives/click-anime.ts b/packages/frontend/src/directives/click-anime.ts
index c34f351fb3..7891e8092c 100644
--- a/packages/frontend/src/directives/click-anime.ts
+++ b/packages/frontend/src/directives/click-anime.ts
@@ -6,8 +6,8 @@
 import type { Directive } from 'vue';
 import { prefer } from '@/preferences.js';
 
-export default {
-	mounted(el: HTMLElement, binding, vn) {
+export const clickAnimeDirective = {
+	mounted(el) {
 		if (!prefer.s.animation) return;
 
 		const target = el.children[0];
@@ -37,4 +37,4 @@ export default {
 			target.classList.add('_anime_bounce_standBy');
 		});
 	},
-} as Directive;
+} as Directive<HTMLElement>;
diff --git a/packages/frontend/src/directives/follow-append.ts b/packages/frontend/src/directives/follow-append.ts
index f3eaac10e3..303dcb842a 100644
--- a/packages/frontend/src/directives/follow-append.ts
+++ b/packages/frontend/src/directives/follow-append.ts
@@ -6,8 +6,12 @@
 import type { Directive } from 'vue';
 import { getScrollContainer, getScrollPosition } from '@@/js/scroll.js';
 
-export default {
-	mounted(src, binding, vn) {
+interface HTMLElementWithRO extends HTMLElement {
+	_ro_?: ResizeObserver;
+}
+
+export const followAppendDirective = {
+	mounted(src, binding) {
 		if (binding.value === false) return;
 
 		let isBottom = true;
@@ -34,7 +38,7 @@ export default {
 		src._ro_ = ro;
 	},
 
-	unmounted(src, binding, vn) {
+	unmounted(src) {
 		if (src._ro_) src._ro_.unobserve(src);
 	},
-} as Directive;
+} as Directive<HTMLElementWithRO, boolean>;
diff --git a/packages/frontend/src/directives/get-size.ts b/packages/frontend/src/directives/get-size.ts
index 488f201a0d..42660987dd 100644
--- a/packages/frontend/src/directives/get-size.ts
+++ b/packages/frontend/src/directives/get-size.ts
@@ -37,8 +37,10 @@ function calc(src: Element) {
 	info.fn(width, height);
 }
 
-export default {
-	mounted(src, binding, vn) {
+type SizeCallback = (w: number, h: number) => void;
+
+export const getSizeDirective = {
+	mounted(src, binding) {
 		const resize = new ResizeObserver((entries, observer) => {
 			calc(src);
 		});
@@ -48,7 +50,7 @@ export default {
 		calc(src);
 	},
 
-	unmounted(src, binding, vn) {
+	unmounted(src, binding) {
 		binding.value(0, 0);
 		const info = mountings.get(src);
 		if (!info) return;
@@ -56,4 +58,4 @@ export default {
 		if (info.intersection) info.intersection.disconnect();
 		mountings.delete(src);
 	},
-} as Directive<Element, (w: number, h: number) => void>;
+} as Directive<Element, SizeCallback>;
diff --git a/packages/frontend/src/directives/hotkey.ts b/packages/frontend/src/directives/hotkey.ts
index 63637ab2ba..d8fdfe647a 100644
--- a/packages/frontend/src/directives/hotkey.ts
+++ b/packages/frontend/src/directives/hotkey.ts
@@ -5,8 +5,14 @@
 
 import type { Directive } from 'vue';
 import { makeHotkey } from '@/utility/hotkey.js';
+import type { Keymap } from '@/utility/hotkey.js';
 
-export default {
+interface HTMLElementWithHotkey extends HTMLElement {
+	_hotkey_global?: boolean;
+	_keyHandler?: (ev: KeyboardEvent) => void;
+}
+
+export const hotkeyDirective = {
 	mounted(el, binding) {
 		el._hotkey_global = binding.modifiers.global === true;
 
@@ -20,10 +26,11 @@ export default {
 	},
 
 	unmounted(el) {
+		if (el._keyHandler == null) return;
 		if (el._hotkey_global) {
 			window.document.removeEventListener('keydown', el._keyHandler);
 		} else {
 			el.removeEventListener('keydown', el._keyHandler);
 		}
 	},
-} as Directive;
+} as Directive<HTMLElementWithHotkey, Keymap>;
diff --git a/packages/frontend/src/directives/index.ts b/packages/frontend/src/directives/index.ts
index 9555045afe..07b756b95d 100644
--- a/packages/frontend/src/directives/index.ts
+++ b/packages/frontend/src/directives/index.ts
@@ -3,19 +3,19 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import type { App } from 'vue';
+import type { App, Directive } from 'vue';
 
-import userPreview from './user-preview.js';
-import getSize from './get-size.js';
-import ripple from './ripple.js';
-import tooltip from './tooltip.js';
-import hotkey from './hotkey.js';
-import appear from './appear.js';
-import anim from './anim.js';
-import clickAnime from './click-anime.js';
-import panel from './panel.js';
-import adaptiveBorder from './adaptive-border.js';
-import adaptiveBg from './adaptive-bg.js';
+import { userPreviewDirective } from './user-preview.js';
+import { getSizeDirective } from './get-size.js';
+import { rippleDirective } from './ripple.js';
+import { tooltipDirective } from './tooltip.js';
+import { hotkeyDirective } from './hotkey.js';
+import { appearDirective } from './appear.js';
+import { animDirective } from './anim.js';
+import { clickAnimeDirective } from './click-anime.js';
+import { panelDirective } from './panel.js';
+import { adaptiveBorderDirective } from './adaptive-border.js';
+import { adaptiveBgDirective } from './adaptive-bg.js';
 
 export default function(app: App) {
 	for (const [key, value] of Object.entries(directives)) {
@@ -24,16 +24,32 @@ export default function(app: App) {
 }
 
 export const directives = {
-	'userPreview': userPreview,
-	'user-preview': userPreview,
-	'get-size': getSize,
-	'ripple': ripple,
-	'tooltip': tooltip,
-	'hotkey': hotkey,
-	'appear': appear,
-	'anim': anim,
-	'click-anime': clickAnime,
-	'panel': panel,
-	'adaptive-border': adaptiveBorder,
-	'adaptive-bg': adaptiveBg,
-};
+	'userPreview': userPreviewDirective,
+	'user-preview': userPreviewDirective,
+	'get-size': getSizeDirective,
+	'ripple': rippleDirective,
+	'tooltip': tooltipDirective,
+	'hotkey': hotkeyDirective,
+	'appear': appearDirective,
+	'anim': animDirective,
+	'click-anime': clickAnimeDirective,
+	'panel': panelDirective,
+	'adaptive-border': adaptiveBorderDirective,
+	'adaptive-bg': adaptiveBgDirective,
+} as Record<string, Directive>;
+
+declare module 'vue' {
+	export interface ComponentCustomProperties {
+		vUserPreview: typeof userPreviewDirective;
+		vGetSize: typeof getSizeDirective;
+		vRipple: typeof rippleDirective;
+		vTooltip: typeof tooltipDirective;
+		vHotkey: typeof hotkeyDirective;
+		vAppear: typeof appearDirective;
+		vAnim: typeof animDirective;
+		vClickAnime: typeof clickAnimeDirective;
+		vPanel: typeof panelDirective;
+		vAdaptiveBorder: typeof adaptiveBorderDirective;
+		vAdaptiveBg: typeof adaptiveBgDirective;
+	}
+}
diff --git a/packages/frontend/src/directives/panel.ts b/packages/frontend/src/directives/panel.ts
index 0af19e6ca3..7913baefe4 100644
--- a/packages/frontend/src/directives/panel.ts
+++ b/packages/frontend/src/directives/panel.ts
@@ -6,8 +6,8 @@
 import type { Directive } from 'vue';
 import { getBgColor } from '@/utility/get-bg-color.js';
 
-export default {
-	mounted(src, binding, vn) {
+export const panelDirective = {
+	mounted(src) {
 		const parentBg = getBgColor(src.parentElement) ?? 'transparent';
 
 		const myBg = getComputedStyle(window.document.documentElement).getPropertyValue('--MI_THEME-panel');
@@ -18,4 +18,4 @@ export default {
 			src.style.backgroundColor = 'var(--MI_THEME-panel)';
 		}
 	},
-} as Directive;
+} as Directive<HTMLElement>;
diff --git a/packages/frontend/src/directives/ripple.ts b/packages/frontend/src/directives/ripple.ts
index 614cd37011..bacf49ab72 100644
--- a/packages/frontend/src/directives/ripple.ts
+++ b/packages/frontend/src/directives/ripple.ts
@@ -3,12 +3,13 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
+import type { Directive } from 'vue';
 import MkRippleEffect from '@/components/MkRippleEffect.vue';
 import { prefer } from '@/preferences.js';
 import { popup } from '@/os.js';
 
-export default {
-	mounted(el, binding, vn) {
+export const rippleDirective = {
+	mounted(el, binding) {
 		// 明示的に false であればバインドしない
 		if (binding.value === false) return;
 		if (!prefer.s.animation) return;
@@ -24,4 +25,4 @@ export default {
 			});
 		});
 	},
-};
+} as Directive<HTMLElement, boolean | undefined>;
diff --git a/packages/frontend/src/directives/tooltip.ts b/packages/frontend/src/directives/tooltip.ts
index 62aecbc87c..9cfa8d657d 100644
--- a/packages/frontend/src/directives/tooltip.ts
+++ b/packages/frontend/src/directives/tooltip.ts
@@ -14,13 +14,30 @@ import { popup, alert } from '@/os.js';
 const start = isTouchUsing ? 'touchstart' : 'mouseenter';
 const end = isTouchUsing ? 'touchend' : 'mouseleave';
 
-export default {
-	mounted(el: HTMLElement, binding, vn) {
+type TooltipDirectiveState = {
+	text: string;
+	_close: null | (() => void);
+	showTimer: number | null;
+	hideTimer: number | null;
+	checkTimer: number | null;
+	show: () => void;
+	close: () => void;
+};
+
+interface TooltipDirectiveElement extends HTMLElement {
+	_tooltipDirective_?: TooltipDirectiveState;
+}
+
+type TooltipDirectiveModifiers = 'left' | 'right' | 'top' | 'bottom' | 'mfm' | 'noDelay';
+type TooltipDirectiveArg = 'dialog';
+
+export const tooltipDirective = {
+	mounted(el, binding) {
 		const delay = binding.modifiers.noDelay ? 0 : 100;
 
-		const self = (el as any)._tooltipDirective_ = {} as any;
+		const self = el._tooltipDirective_ = {} as TooltipDirectiveState;
 
-		self.text = binding.value as string;
+		self.text = binding.value;
 		self._close = null;
 		self.showTimer = null;
 		self.hideTimer = null;
@@ -28,7 +45,7 @@ export default {
 
 		self.close = () => {
 			if (self._close) {
-				window.clearInterval(self.checkTimer);
+				if (self.checkTimer) window.clearInterval(self.checkTimer);
 				self._close();
 				self._close = null;
 			}
@@ -72,8 +89,8 @@ export default {
 		});
 
 		el.addEventListener(start, (ev) => {
-			window.clearTimeout(self.showTimer);
-			window.clearTimeout(self.hideTimer);
+			if (self.showTimer) window.clearTimeout(self.showTimer);
+			if (self.hideTimer) window.clearTimeout(self.hideTimer);
 			if (delay === 0) {
 				self.show();
 			} else {
@@ -82,8 +99,8 @@ export default {
 		}, { passive: true });
 
 		el.addEventListener(end, () => {
-			window.clearTimeout(self.showTimer);
-			window.clearTimeout(self.hideTimer);
+			if (self.showTimer) window.clearTimeout(self.showTimer);
+			if (self.hideTimer) window.clearTimeout(self.hideTimer);
 			if (delay === 0) {
 				self.close();
 			} else {
@@ -92,18 +109,23 @@ export default {
 		}, { passive: true });
 
 		el.addEventListener('click', () => {
-			window.clearTimeout(self.showTimer);
+			if (self.showTimer) window.clearTimeout(self.showTimer);
 			self.close();
 		});
 	},
 
 	updated(el, binding) {
 		const self = el._tooltipDirective_;
+		if (self == null) return;
 		self.text = binding.value as string;
 	},
 
-	unmounted(el, binding, vn) {
+	unmounted(el) {
 		const self = el._tooltipDirective_;
-		window.clearInterval(self.checkTimer);
+		if (self == null) return;
+		if (self.showTimer) window.clearTimeout(self.showTimer);
+		if (self.hideTimer) window.clearTimeout(self.hideTimer);
+		if (self.checkTimer) window.clearTimeout(self.checkTimer);
+		self.close();
 	},
-} as Directive;
+} as Directive<TooltipDirectiveElement, string, TooltipDirectiveModifiers, TooltipDirectiveArg>;
diff --git a/packages/frontend/src/directives/user-preview.ts b/packages/frontend/src/directives/user-preview.ts
index b11ef8f088..76e345a108 100644
--- a/packages/frontend/src/directives/user-preview.ts
+++ b/packages/frontend/src/directives/user-preview.ts
@@ -5,18 +5,19 @@
 
 import { defineAsyncComponent, ref } from 'vue';
 import type { Directive } from 'vue';
+import * as Misskey from 'misskey-js';
 import { popup } from '@/os.js';
 import { isTouchUsing } from '@/utility/touch.js';
 
 export class UserPreview {
-	private el;
-	private user;
-	private showTimer;
-	private hideTimer;
-	private checkTimer;
-	private promise;
+	private el: HTMLElement;
+	private user: string | Misskey.entities.UserDetailed;
+	private showTimer: number | null = null;
+	private hideTimer: number | null = null;
+	private checkTimer: number | null = null;
+	private promise: null | { cancel: () => void } = null;
 
-	constructor(el, user) {
+	constructor(el: HTMLElement, user: string | Misskey.entities.UserDetailed) {
 		this.el = el;
 		this.user = user;
 
@@ -43,10 +44,10 @@ export class UserPreview {
 			source: this.el,
 		}, {
 			mouseover: () => {
-				window.clearTimeout(this.hideTimer);
+				if (this.hideTimer) window.clearTimeout(this.hideTimer);
 			},
 			mouseleave: () => {
-				window.clearTimeout(this.showTimer);
+				if (this.showTimer) window.clearTimeout(this.showTimer);
 				this.hideTimer = window.setTimeout(this.close, 500);
 			},
 			closed: () => dispose(),
@@ -60,8 +61,8 @@ export class UserPreview {
 
 		this.checkTimer = window.setInterval(() => {
 			if (!window.document.body.contains(this.el)) {
-				window.clearTimeout(this.showTimer);
-				window.clearTimeout(this.hideTimer);
+				if (this.showTimer) window.clearTimeout(this.showTimer);
+				if (this.hideTimer) window.clearTimeout(this.hideTimer);
 				this.close();
 			}
 		}, 1000);
@@ -69,26 +70,26 @@ export class UserPreview {
 
 	private close() {
 		if (this.promise) {
-			window.clearInterval(this.checkTimer);
+			if (this.checkTimer) window.clearInterval(this.checkTimer);
 			this.promise.cancel();
 			this.promise = null;
 		}
 	}
 
 	private onMouseover() {
-		window.clearTimeout(this.showTimer);
-		window.clearTimeout(this.hideTimer);
+		if (this.showTimer) window.clearTimeout(this.showTimer);
+		if (this.hideTimer) window.clearTimeout(this.hideTimer);
 		this.showTimer = window.setTimeout(this.show, 500);
 	}
 
 	private onMouseleave() {
-		window.clearTimeout(this.showTimer);
-		window.clearTimeout(this.hideTimer);
+		if (this.showTimer) window.clearTimeout(this.showTimer);
+		if (this.hideTimer) window.clearTimeout(this.hideTimer);
 		this.hideTimer = window.setTimeout(this.close, 500);
 	}
 
 	private onClick() {
-		window.clearTimeout(this.showTimer);
+		if (this.showTimer) window.clearTimeout(this.showTimer);
 		this.close();
 	}
 
@@ -105,8 +106,14 @@ export class UserPreview {
 	}
 }
 
-export default {
-	mounted(el: HTMLElement, binding, vn) {
+interface UserPreviewDirectiveElement extends HTMLElement {
+	_userPreviewDirective_?: {
+		preview: UserPreview;
+	};
+}
+
+export const userPreviewDirective = {
+	mounted(el, binding) {
 		if (binding.value == null) return;
 		if (isTouchUsing) return;
 
@@ -117,10 +124,11 @@ export default {
 		self.preview = new UserPreview(el, binding.value);
 	},
 
-	unmounted(el, binding, vn) {
+	unmounted(el, binding) {
 		if (binding.value == null) return;
 
 		const self = el._userPreviewDirective_;
+		if (self == null) return;
 		self.preview.detach();
 	},
-} as Directive;
+} as Directive<UserPreviewDirectiveElement, string | Misskey.entities.UserDetailed>;