refactor(frontend): MkMarquee のコードの可読性の向上 (#16017)

* fix(frontend/MkMarquee): Composition API に移行

* move animation to scoped environment

* refactor

---------

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

2 files changed, 89 insertions, 112 deletions

diff --git a/packages/frontend/src/components/MkMarquee.vue b/packages/frontend/src/components/MkMarquee.vue
deleted file mode 100644
index 4a89d21b92..0000000000
--- a/packages/frontend/src/components/MkMarquee.vue
+++ /dev/null
@@ -1,112 +0,0 @@
-<!--
-SPDX-FileCopyrightText: syuilo and misskey-project
-SPDX-License-Identifier: AGPL-3.0-only
--->
-
-<script lang="ts">
-import { h, onMounted, onUnmounted, ref, watch } from 'vue';
-
-export default {
-	name: 'MarqueeText',
-	props: {
-		duration: {
-			type: Number,
-			default: 15,
-		},
-		repeat: {
-			type: Number,
-			default: 2,
-		},
-		paused: {
-			type: Boolean,
-			default: false,
-		},
-		reverse: {
-			type: Boolean,
-			default: false,
-		},
-	},
-	setup(props) {
-		const contentEl = ref<HTMLElement>();
-
-		function calc() {
-			if (contentEl.value == null) return;
-			const eachLength = contentEl.value.offsetWidth / props.repeat;
-			const factor = 3000;
-			const duration = props.duration / ((1 / eachLength) * factor);
-
-			contentEl.value.style.animationDuration = `${duration}s`;
-		}
-
-		watch(() => props.duration, calc);
-
-		onMounted(() => {
-			calc();
-		});
-
-		onUnmounted(() => {
-		});
-
-		return {
-			contentEl,
-		};
-	},
-	render({
-		$slots, $style, $props: {
-			duration, repeat, paused, reverse,
-		},
-	}) {
-		return h('div', { class: [$style.wrap] }, [
-			h('span', {
-				ref: 'contentEl',
-				class: [
-					paused
-						? $style.paused
-						: undefined,
-					$style.content,
-				],
-			}, Array(repeat).fill(
-				h('span', {
-					class: $style.text,
-					style: {
-						animationDirection: reverse
-							? 'reverse'
-							: undefined,
-					},
-				}, $slots.default()),
-			)),
-		]);
-	},
-};
-</script>
-
-<style lang="scss" module>
-.wrap {
-	overflow: clip;
-	animation-play-state: running;
-
-	&:hover {
-		animation-play-state: paused;
-	}
-}
-.content {
-	display: inline-block;
-	white-space: nowrap;
-	animation-play-state: inherit;
-}
-.text {
-	display: inline-block;
-	animation-name: marquee;
-	animation-timing-function: linear;
-	animation-iteration-count: infinite;
-	animation-duration: inherit;
-	animation-play-state: inherit;
-}
-.paused .text {
-	animation-play-state: paused;
-}
-@keyframes marquee {
-	0% { transform:translateX(0); }
-	100% { transform:translateX(-100%); }
-}
-</style>
diff --git a/packages/frontend/src/components/MkMarqueeText.vue b/packages/frontend/src/components/MkMarqueeText.vue
new file mode 100644
index 0000000000..a2c365afe9
--- /dev/null
+++ b/packages/frontend/src/components/MkMarqueeText.vue
@@ -0,0 +1,89 @@
+<!--
+SPDX-FileCopyrightText: syuilo and misskey-project
+SPDX-License-Identifier: AGPL-3.0-only
+-->
+
+<template>
+<div :class="$style.wrap">
+	<span
+		ref="contentEl"
+		:class="[$style.content, {
+			[$style.paused]: paused,
+			[$style.reverse]: reverse,
+		}]"
+	>
+		<span v-for="key in repeat" :key="key" :class="$style.text">
+			<slot></slot>
+		</span>
+	</span>
+</div>
+</template>
+
+<script lang="ts" setup>
+import { onMounted, useTemplateRef, watch } from 'vue';
+
+const props = withDefaults(defineProps<{
+	duration?: number;
+	repeat?: number;
+	paused?: boolean;
+	reverse?: boolean;
+}>(), {
+	duration: 15,
+	repeat: 2,
+	paused: false,
+	reverse: false,
+});
+
+const contentEl = useTemplateRef('contentEl');
+
+function calcDuration() {
+	if (contentEl.value == null) return;
+	const eachLength = contentEl.value.offsetWidth / props.repeat;
+	const factor = 3000;
+	const duration = props.duration / ((1 / eachLength) * factor);
+	contentEl.value.style.animationDuration = `${duration}s`;
+}
+
+watch(() => props.duration, calcDuration);
+
+onMounted(calcDuration);
+</script>
+
+<style lang="scss" module>
+.wrap {
+	overflow: clip;
+	animation-play-state: running;
+
+	&:hover {
+		animation-play-state: paused;
+	}
+}
+
+.content {
+	display: inline-block;
+	white-space: nowrap;
+	animation-play-state: inherit;
+}
+
+.text {
+	display: inline-block;
+	animation-name: marquee;
+	animation-timing-function: linear;
+	animation-iteration-count: infinite;
+	animation-duration: inherit;
+	animation-play-state: inherit;
+}
+
+.paused .text {
+	animation-play-state: paused;
+}
+
+.reverse .text {
+	animation-direction: reverse;
+}
+
+@keyframes marquee {
+	0% { transform: translateX(0); }
+	100% { transform: translateX(-100%); }
+}
+</style>