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Fix(frontend): CW内などの画像が表示されないことがあるバグを修正 #12721

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Dec 20, 2023
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1 change: 1 addition & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,7 @@
- Fix: AiScriptの`readline`が不正な値を返すことがある問題を修正
- Fix: 投票のみ/画像のみの引用RNが、通知欄でただのRNとして判定されるバグを修正
- Fix: CWをつけて引用RNしても、普通のRNとして扱われてしまうバグを修正しました。
- Fix: 「画像が1枚のみのメディアリストの高さ」を「デフォルト」以外に設定していると、CWの中などに添付された画像が見られないバグを修正

### Server
- Enhance: MFM `$[ruby ]` が他ソフトウェアと連合されるように
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77 changes: 8 additions & 69 deletions packages/frontend/src/components/MkMediaList.vue
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ SPDX-License-Identifier: AGPL-3.0-only
-->

<template>
<div ref="root">
<div>
<XBanner v-for="media in mediaList.filter(media => !previewable(media))" :key="media.id" :media="media"/>
<div v-if="mediaList.filter(media => previewable(media)).length > 0" :class="$style.container">
<div
Expand All @@ -27,41 +27,6 @@ SPDX-License-Identifier: AGPL-3.0-only
</div>
</template>

<script lang="ts">
/**
* アスペクト比算出のためにHTMLElement.clientWidthを使うが、
* 大変重たいのでコンテナ要素とメディアリスト幅のペアをキャッシュする
* (タイムラインごとにスクロールコンテナが存在する前提だが……)
*/
const widthCache = new Map<Element, number>();
/**
* コンテナ要素がリサイズされたらキャッシュを削除する
*/
const ro = new ResizeObserver(entries => {
for (const entry of entries) {
widthCache.delete(entry.target);
}
});
async function getClientWidthWithCache(targetEl: HTMLElement, containerEl: HTMLElement, count = 0) {
if (_DEV_) console.log('getClientWidthWithCache', { targetEl, containerEl, count, cache: widthCache.get(containerEl) });
if (widthCache.has(containerEl)) return widthCache.get(containerEl)!;
const width = targetEl.clientWidth;
if (count <= 10 && width < 64) {
// widthが64未満はおかしいのでリトライする
await new Promise(resolve => setTimeout(resolve, 50));
return getClientWidthWithCache(targetEl, containerEl, count + 1);
}
widthCache.set(containerEl, width);
ro.observe(containerEl);
return width;
}
</script>

<script lang="ts" setup>
import { computed, onMounted, onUnmounted, shallowRef } from 'vue';
import * as Misskey from 'misskey-js';
Expand All @@ -74,15 +39,12 @@ import XVideo from '@/components/MkMediaVideo.vue';
import * as os from '@/os.js';
import { FILE_TYPE_BROWSERSAFE } from '@/const';
import { defaultStore } from '@/store.js';
import { getScrollContainer, getBodyScrollHeight } from '@/scripts/scroll.js';
const props = defineProps<{
mediaList: Misskey.entities.DriveFile[];
raw?: boolean;
}>();
const root = shallowRef<HTMLDivElement>();
const container = shallowRef<HTMLElement | null | undefined>(undefined);
const gallery = shallowRef<HTMLDivElement>();
const pswpZIndex = os.claimZIndex('middle');
document.documentElement.style.setProperty('--mk-pswp-root-z-index', pswpZIndex.toString());
Expand All @@ -95,12 +57,8 @@ const popstateHandler = (): void => {
}
};
/**
* アスペクト比をmediaListWithOneImageAppearanceに基づいていい感じに調整する
* aspect-ratioではなくheightを使う
*/
async function calcAspectRatio() {
if (!gallery.value || !root.value) return;
if (!gallery.value) return;
let img = props.mediaList[0];
Expand All @@ -109,41 +67,22 @@ async function calcAspectRatio() {
return;
}
if (!container.value) container.value = getScrollContainer(root.value);
const width = container.value ? await getClientWidthWithCache(root.value, container.value) : root.value.clientWidth;
const heightMin = (ratio: number) => {
const imgResizeRatio = width / img.properties.width;
const imgDrawHeight = img.properties.height * imgResizeRatio;
const maxHeight = width * ratio;
const height = Math.min(imgDrawHeight, maxHeight);
if (_DEV_) console.log('Image height calculated:', { width, properties: img.properties, imgResizeRatio, imgDrawHeight, maxHeight, height });
return `${height}px`;
};
const ratioMax = (ratio: number) => `${Math.max(ratio, img.properties.width / img.properties.height).toString()} / 1`;
switch (defaultStore.state.mediaListWithOneImageAppearance) {
case '16_9':
gallery.value.style.height = heightMin(9 / 16);
gallery.value.style.aspectRatio = ratioMax(16 / 9);
break;
case '1_1':
gallery.value.style.height = heightMin(1);
gallery.value.style.aspectRatio = ratioMax(1 / 1);
break;
case '2_3':
gallery.value.style.height = heightMin(3 / 2);
gallery.value.style.aspectRatio = ratioMax(2 / 3);
break;
default: {
const maxHeight = Math.max(64, (container.value ? container.value.clientHeight : getBodyScrollHeight()) * 0.5 || 360);
if (width === 0 || !maxHeight) return;
const imgResizeRatio = width / img.properties.width;
const imgDrawHeight = img.properties.height * imgResizeRatio;
gallery.value.style.height = `${Math.max(64, Math.min(imgDrawHeight, maxHeight))}px`;
gallery.value.style.minHeight = 'initial';
gallery.value.style.maxHeight = 'initial';
default:
gallery.value.style.aspectRatio = '';
break;
}
}
gallery.value.style.aspectRatio = 'initial';
}
onMounted(() => {
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