From 54a6fbed1570822975117bb74e4e02609fece450 Mon Sep 17 00:00:00 2001
From: syuilo <4439005+syuilo@users.noreply.github.com>
Date: Tue, 20 Aug 2024 16:25:58 +0900
Subject: [PATCH] wa-

---
 .../src/embed/components/EmMediaList.vue      | 378 ++++++++++++++++++
 .../components/{MkEmNote.vue => EmNote.vue}   |   2 +-
 packages/frontend/src/embed/pages/note.vue    |   4 +-
 3 files changed, 381 insertions(+), 3 deletions(-)
 create mode 100644 packages/frontend/src/embed/components/EmMediaList.vue
 rename packages/frontend/src/embed/components/{MkEmNote.vue => EmNote.vue} (99%)

diff --git a/packages/frontend/src/embed/components/EmMediaList.vue b/packages/frontend/src/embed/components/EmMediaList.vue
new file mode 100644
index 0000000000..f489b689e8
--- /dev/null
+++ b/packages/frontend/src/embed/components/EmMediaList.vue
@@ -0,0 +1,378 @@
+<!--
+SPDX-FileCopyrightText: syuilo and misskey-project
+SPDX-License-Identifier: AGPL-3.0-only
+-->
+
+<template>
+<div>
+	<div v-for="media in mediaList.filter(media => !previewable(media))" :key="media.id" :class="$style.banner">
+		<XBanner :media="media" :inert="inEmbedPage"/>
+		<a v-if="inEmbedPage && originalEntityUrl" :href="originalEntityUrl" target="_blank" rel="noopener" :class="$style.mediaLinkForEmbed"></a>
+	</div>
+	<div v-if="mediaList.filter(media => previewable(media)).length > 0" :class="$style.container">
+		<div
+			ref="gallery"
+			:class="[
+				$style.medias,
+				count === 1 ? [$style.n1, {
+					[$style.n116_9]: defaultStore.reactiveState.mediaListWithOneImageAppearance.value === '16_9',
+					[$style.n11_1]: defaultStore.reactiveState.mediaListWithOneImageAppearance.value === '1_1',
+					[$style.n12_3]: defaultStore.reactiveState.mediaListWithOneImageAppearance.value === '2_3',
+				}] : count === 2 ? $style.n2 : count === 3 ? $style.n3 : count === 4 ? $style.n4 : $style.nMany,
+			]"
+		>
+			<div v-for="media in mediaList.filter(media => previewable(media))" :class="$style.media">
+				<XVideo v-if="media.type.startsWith('video')" :key="`video:${media.id}`" :video="media" :class="$style.mediaInner" :inert="inEmbedPage"/>
+				<XImage v-else-if="media.type.startsWith('image')" :key="`image:${media.id}`" :class="$style.mediaInner" class="image" :inert="inEmbedPage" :data-id="media.id" :image="media" :raw="raw"/>
+				<a v-if="inEmbedPage && originalEntityUrl" :href="originalEntityUrl" target="_blank" rel="noopener" :class="$style.mediaLinkForEmbed"></a>
+			</div>
+		</div>
+	</div>
+</div>
+</template>
+
+<script lang="ts" setup>
+import { computed, onMounted, onUnmounted, shallowRef, inject } from 'vue';
+import * as Misskey from 'misskey-js';
+import PhotoSwipeLightbox from 'photoswipe/lightbox';
+import PhotoSwipe from 'photoswipe';
+import 'photoswipe/style.css';
+import XBanner from '@/components/MkMediaBanner.vue';
+import XImage from '@/components/MkMediaImage.vue';
+import XVideo from '@/components/MkMediaVideo.vue';
+import * as os from '@/os.js';
+import { FILE_TYPE_BROWSERSAFE } from '@/const.js';
+import { defaultStore } from '@/store.js';
+import { focusParent } from '@/scripts/focus.js';
+
+const props = defineProps<{
+	mediaList: Misskey.entities.DriveFile[];
+	raw?: boolean;
+
+	/** 埋め込みページ用 親要素の正規URL */
+	originalEntityUrl?: string;
+}>();
+
+const inEmbedPage = inject<boolean>('EMBED_PAGE', false);
+
+const gallery = shallowRef<HTMLDivElement>();
+const pswpZIndex = os.claimZIndex('middle');
+document.documentElement.style.setProperty('--mk-pswp-root-z-index', pswpZIndex.toString());
+const count = computed(() => props.mediaList.filter(media => previewable(media)).length);
+let lightbox: PhotoSwipeLightbox | null = null;
+
+let activeEl: HTMLElement | null = null;
+
+const popstateHandler = (): void => {
+	if (lightbox?.pswp && lightbox.pswp.isOpen === true) {
+		lightbox.pswp.close();
+	}
+};
+
+async function calcAspectRatio() {
+	if (!gallery.value) return;
+
+	const img = props.mediaList[0];
+
+	if (props.mediaList.length !== 1 || !(img.properties.width && img.properties.height)) {
+		gallery.value.style.aspectRatio = '';
+		return;
+	}
+
+	const ratioMax = (ratio: number) => {
+		if (img.properties.width == null || img.properties.height == null) return '';
+		return `${Math.max(ratio, img.properties.width / img.properties.height).toString()} / 1`;
+	};
+
+	switch (defaultStore.state.mediaListWithOneImageAppearance) {
+		case '16_9':
+			gallery.value.style.aspectRatio = ratioMax(16 / 9);
+			break;
+		case '1_1':
+			gallery.value.style.aspectRatio = ratioMax(1 / 1);
+			break;
+		case '2_3':
+			gallery.value.style.aspectRatio = ratioMax(2 / 3);
+			break;
+		default:
+			gallery.value.style.aspectRatio = '';
+			break;
+	}
+}
+
+onMounted(() => {
+	calcAspectRatio();
+	if (defaultStore.state.imageNewTab || inEmbedPage) return;
+
+	lightbox = new PhotoSwipeLightbox({
+		dataSource: props.mediaList
+			.filter(media => {
+				if (media.type === 'image/svg+xml') return true; // svgのwebpublicはpngなのでtrue
+				return media.type.startsWith('image') && FILE_TYPE_BROWSERSAFE.includes(media.type);
+			})
+			.map(media => {
+				const item = {
+					src: media.url,
+					w: media.properties.width,
+					h: media.properties.height,
+					alt: media.comment ?? media.name,
+					comment: media.comment ?? media.name,
+				};
+				if (media.properties.orientation != null && media.properties.orientation >= 5) {
+					[item.w, item.h] = [item.h, item.w];
+				}
+				return item;
+			}),
+		gallery: gallery.value,
+		mainClass: 'pswp',
+		children: '.image',
+		thumbSelector: '.image',
+		loop: false,
+		padding: window.innerWidth > 500 ? {
+			top: 32,
+			bottom: 90,
+			left: 32,
+			right: 32,
+		} : {
+			top: 0,
+			bottom: 78,
+			left: 0,
+			right: 0,
+		},
+		imageClickAction: 'close',
+		tapAction: 'close',
+		bgOpacity: 1,
+		showAnimationDuration: 100,
+		hideAnimationDuration: 100,
+		returnFocus: false,
+		pswpModule: PhotoSwipe,
+	});
+
+	lightbox.addFilter('itemData', (itemData) => {
+		// element is children
+		const { element } = itemData;
+
+		const id = element?.dataset.id;
+		const file = props.mediaList.find(media => media.id === id);
+		if (!file) return itemData;
+
+		itemData.src = file.url;
+		itemData.w = Number(file.properties.width);
+		itemData.h = Number(file.properties.height);
+		if (file.properties.orientation != null && file.properties.orientation >= 5) {
+			[itemData.w, itemData.h] = [itemData.h, itemData.w];
+		}
+		itemData.msrc = file.thumbnailUrl ?? undefined;
+		itemData.alt = file.comment ?? file.name;
+		itemData.comment = file.comment ?? file.name;
+		itemData.thumbCropped = true;
+
+		return itemData;
+	});
+
+	lightbox.on('uiRegister', () => {
+		lightbox?.pswp?.ui?.registerElement({
+			name: 'altText',
+			className: 'pswp__alt-text-container',
+			appendTo: 'wrapper',
+			onInit: (el, pswp) => {
+				const textBox = document.createElement('p');
+				textBox.className = 'pswp__alt-text _acrylic';
+				el.appendChild(textBox);
+
+				pswp.on('change', () => {
+					textBox.textContent = pswp.currSlide?.data.comment;
+				});
+			},
+		});
+	});
+
+	lightbox.on('afterInit', () => {
+		activeEl = document.activeElement instanceof HTMLElement ? document.activeElement : null;
+		focusParent(activeEl, true, true);
+		lightbox?.pswp?.element?.focus({
+			preventScroll: true,
+		});
+		history.pushState(null, '', '#pswp');
+	});
+
+	lightbox.on('destroy', () => {
+		focusParent(activeEl, true, false);
+		activeEl = null;
+		if (window.location.hash === '#pswp') {
+			history.back();
+		}
+	});
+
+	window.addEventListener('popstate', popstateHandler);
+
+	lightbox.init();
+});
+
+onUnmounted(() => {
+	window.removeEventListener('popstate', popstateHandler);
+	lightbox?.destroy();
+	lightbox = null;
+	activeEl = null;
+});
+
+const previewable = (file: Misskey.entities.DriveFile): boolean => {
+	if (file.type === 'image/svg+xml') return true; // svgのwebpublic/thumbnailはpngなのでtrue
+	// FILE_TYPE_BROWSERSAFEに適合しないものはブラウザで表示するのに不適切
+	return (file.type.startsWith('video') || file.type.startsWith('image')) && FILE_TYPE_BROWSERSAFE.includes(file.type);
+};
+
+const openGallery = () => {
+	if (props.mediaList.filter(media => previewable(media)).length > 0) {
+		lightbox?.loadAndOpen(0);
+	}
+};
+
+defineExpose({
+	openGallery,
+});
+</script>
+
+<style lang="scss" module>
+.container {
+	position: relative;
+	width: 100%;
+	margin-top: 4px;
+}
+
+.medias {
+	display: grid;
+	grid-gap: 8px;
+
+	height: 100%;
+	width: 100%;
+
+	&.n1 {
+		grid-template-rows: 1fr;
+
+		// default but fallback (expand)
+		min-height: 64px;
+		max-height: clamp(
+			64px,
+			50cqh,
+			min(360px, 50vh)
+		);
+
+		&.n116_9 {
+			min-height: initial;
+			max-height: initial;
+			aspect-ratio: 16 / 9; // fallback
+		}
+
+		&.n11_1{
+			min-height: initial;
+			max-height: initial;
+			aspect-ratio: 1 / 1; // fallback
+		}
+
+		&.n12_3 {
+			min-height: initial;
+			max-height: initial;
+			aspect-ratio: 2 / 3; // fallback
+		}
+	}
+
+	&.n2 {
+		aspect-ratio: 16/9;
+		grid-template-columns: 1fr 1fr;
+		grid-template-rows: 1fr;
+	}
+
+	&.n3 {
+		aspect-ratio: 16/9;
+		grid-template-columns: 1fr 0.5fr;
+		grid-template-rows: 1fr 1fr;
+
+		> .media:nth-child(1) {
+			grid-row: 1 / 3;
+		}
+
+		> .media:nth-child(3) {
+			grid-column: 2 / 3;
+			grid-row: 2 / 3;
+		}
+	}
+
+	&.n4 {
+		aspect-ratio: 16/9;
+		grid-template-columns: 1fr 1fr;
+		grid-template-rows: 1fr 1fr;
+	}
+
+	&.nMany {
+		grid-template-columns: 1fr 1fr;
+
+		> .media {
+			aspect-ratio: 16/9;
+		}
+	}
+}
+
+.media {
+	overflow: hidden; // clipにするとバグる
+	border-radius: 8px;
+	position: relative;
+
+	>.mediaInner {
+		width: 100%;
+		height: 100%;
+	}
+}
+
+.banner {
+	position: relative;
+}
+
+.mediaLinkForEmbed::after {
+	position: absolute;
+	top: 0;
+	left: 0;
+	right: 0;
+	bottom: 0;
+	z-index: 1;
+	content: '';
+}
+
+:global(.pswp) {
+	--pswp-root-z-index: var(--mk-pswp-root-z-index, 2000700) !important;
+	--pswp-bg: var(--modalBg) !important;
+}
+</style>
+
+<style lang="scss">
+.pswp__bg {
+	background: var(--modalBg);
+	backdrop-filter: var(--modalBgFilter);
+}
+
+.pswp__alt-text-container {
+	display: flex;
+	flex-direction: row;
+	align-items: center;
+
+	position: absolute;
+	bottom: 20px;
+	left: 50%;
+	transform: translateX(-50%);
+
+	width: 75%;
+	max-width: 800px;
+}
+
+.pswp__alt-text {
+	color: var(--fg);
+	margin: 0 auto;
+	text-align: center;
+	padding: var(--margin);
+	border-radius: var(--radius);
+	max-height: 8em;
+	overflow-y: auto;
+	text-shadow: var(--bg) 0 0 10px, var(--bg) 0 0 3px, var(--bg) 0 0 3px;
+	white-space: pre-line;
+}
+</style>
diff --git a/packages/frontend/src/embed/components/MkEmNote.vue b/packages/frontend/src/embed/components/EmNote.vue
similarity index 99%
rename from packages/frontend/src/embed/components/MkEmNote.vue
rename to packages/frontend/src/embed/components/EmNote.vue
index c8ab641385..78d6be6f61 100644
--- a/packages/frontend/src/embed/components/MkEmNote.vue
+++ b/packages/frontend/src/embed/components/EmNote.vue
@@ -132,10 +132,10 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { computed, inject, ref } from 'vue';
 import * as mfm from 'mfm-js';
 import * as Misskey from 'misskey-js';
+import EmMediaList from './EmMediaList.vue';
 import MkNoteSub from '@/components/MkNoteSub.vue';
 import MkNoteSimple from '@/components/MkNoteSimple.vue';
 import MkReactionsViewer from '@/components/MkReactionsViewer.vue';
-import MkMediaList from '@/components/MkMediaList.vue';
 import MkCwButton from '@/components/MkCwButton.vue';
 import MkPoll from '@/components/MkPoll.vue';
 import MkInstanceTicker from '@/components/MkInstanceTicker.vue';
diff --git a/packages/frontend/src/embed/pages/note.vue b/packages/frontend/src/embed/pages/note.vue
index cdb0527f43..6f8593a170 100644
--- a/packages/frontend/src/embed/pages/note.vue
+++ b/packages/frontend/src/embed/pages/note.vue
@@ -6,7 +6,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 <template>
 <div :class="$style.noteEmbedRoot">
 	<MkLoading v-if="loading"/>
-	<MkEmNote v-else-if="note" :note="note"/>
+	<EmNote v-else-if="note" :note="note"/>
 	<XNotFound v-else/>
 </div>
 </template>
@@ -14,7 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 <script setup lang="ts">
 import { ref, provide, inject, onActivated } from 'vue';
 import * as Misskey from 'misskey-js';
-import MkEmNote from '@/embed/components/MkEmNote.vue';
+import EmNote from '@/embed/components/EmNote.vue';
 import XNotFound from '@/pages/not-found.vue';
 import { misskeyApi } from '@/scripts/misskey-api.js';
 import { useRouter } from '@/router/supplier.js';