misskey/packages/frontend/src/components/MkFolder.vue

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<!--
SPDX-FileCopyrightText: syuilo and misskey-project
SPDX-License-Identifier: AGPL-3.0-only
-->
<template>
<div ref="rootEl" :class="$style.root" role="group" :aria-expanded="opened">
<MkStickyContainer>
<template #header>
<button :class="[$style.header, { [$style.opened]: opened }]" class="_button" role="button" data-cy-folder-header @click="toggle">
<div :class="$style.headerIcon"><slot name="icon"></slot></div>
<div :class="$style.headerText">
<div :class="$style.headerTextMain">
<MkCondensedLine :minScale="2 / 3"><slot name="label"></slot></MkCondensedLine>
</div>
<div :class="$style.headerTextSub">
<slot name="caption"></slot>
</div>
</div>
<div :class="$style.headerRight">
<span :class="$style.headerRightText"><slot name="suffix"></slot></span>
<i v-if="opened" class="ti ti-chevron-up icon"></i>
<i v-else class="ti ti-chevron-down icon"></i>
</div>
</button>
</template>
<div v-if="openedAtLeastOnce" :class="[$style.body, { [$style.bgSame]: bgSame }]" :style="{ maxHeight: maxHeight ? `${maxHeight}px` : undefined, overflow: maxHeight ? `auto` : undefined }" :aria-hidden="!opened">
<Transition
:enterActiveClass="prefer.s.animation ? $style.transition_toggle_enterActive : ''"
:leaveActiveClass="prefer.s.animation ? $style.transition_toggle_leaveActive : ''"
:enterFromClass="prefer.s.animation ? $style.transition_toggle_enterFrom : ''"
:leaveToClass="prefer.s.animation ? $style.transition_toggle_leaveTo : ''"
@enter="enter"
@afterEnter="afterEnter"
@leave="leave"
@afterLeave="afterLeave"
>
<KeepAlive>
<div v-show="opened">
<MkStickyContainer>
<template #header>
<div v-if="$slots.header" :class="$style.inBodyHeader">
<slot name="header"></slot>
</div>
</template>
<div v-if="withSpacer" class="_spacer" :style="{ '--MI_SPACER-min': props.spacerMin + 'px', '--MI_SPACER-max': props.spacerMax + 'px' }">
<slot></slot>
</div>
<div v-else>
<slot></slot>
</div>
<template #footer>
<div v-if="$slots.footer" :class="$style.inBodyFooter">
<slot name="footer"></slot>
</div>
</template>
</MkStickyContainer>
</div>
</KeepAlive>
</Transition>
</div>
</MkStickyContainer>
</div>
</template>
<script lang="ts" setup>
import { nextTick, onMounted, ref, useTemplateRef } from 'vue';
import { prefer } from '@/preferences.js';
import { getBgColor } from '@/utility/get-bg-color.js';
const props = withDefaults(defineProps<{
defaultOpen?: boolean;
maxHeight?: number | null;
withSpacer?: boolean;
spacerMin?: number;
spacerMax?: number;
}>(), {
defaultOpen: false,
maxHeight: null,
withSpacer: true,
spacerMin: 14,
spacerMax: 22,
});
const rootEl = useTemplateRef('rootEl');
const bgSame = ref(false);
const opened = ref(props.defaultOpen);
const openedAtLeastOnce = ref(props.defaultOpen);
//#region interpolate-sizeに対応していないブラウザ向けTODO: 主要ブラウザが対応したら消す)
function enter(el: Element) {
if (CSS.supports('interpolate-size', 'allow-keywords')) return;
if (!(el instanceof HTMLElement)) return;
const elementHeight = el.getBoundingClientRect().height;
el.style.height = '0';
el.offsetHeight; // reflow
el.style.height = `${Math.min(elementHeight, props.maxHeight ?? Infinity)}px`;
}
function afterEnter(el: Element) {
if (CSS.supports('interpolate-size', 'allow-keywords')) return;
if (!(el instanceof HTMLElement)) return;
el.style.height = '';
}
function leave(el: Element) {
if (CSS.supports('interpolate-size', 'allow-keywords')) return;
if (!(el instanceof HTMLElement)) return;
const elementHeight = el.getBoundingClientRect().height;
el.style.height = `${elementHeight}px`;
el.offsetHeight; // reflow
el.style.height = '0';
}
function afterLeave(el: Element) {
if (CSS.supports('interpolate-size', 'allow-keywords')) return;
if (!(el instanceof HTMLElement)) return;
el.style.height = '';
}
//#endregion
function toggle() {
if (!opened.value) {
openedAtLeastOnce.value = true;
}
nextTick(() => {
opened.value = !opened.value;
});
}
onMounted(() => {
const computedStyle = getComputedStyle(window.document.documentElement);
const parentBg = getBgColor(rootEl.value?.parentElement) ?? 'transparent';
const myBg = computedStyle.getPropertyValue('--MI_THEME-panel');
bgSame.value = parentBg === myBg;
});
</script>
<style lang="scss" module>
.transition_toggle_enterActive,
.transition_toggle_leaveActive {
overflow-y: hidden; // 子要素のmarginが突き出るため clip を使ってはいけない
transition: opacity 0.3s, height 0.3s;
}
@supports (interpolate-size: allow-keywords) {
.transition_toggle_enterFrom,
.transition_toggle_leaveTo {
height: 0;
}
.root {
interpolate-size: allow-keywords; // heightのtransitionを動作させるために必要
}
}
.transition_toggle_enterFrom,
.transition_toggle_leaveTo {
opacity: 0;
}
.root {
display: block;
}
.header {
display: flex;
align-items: center;
width: 100%;
box-sizing: border-box;
padding: 9px 12px 9px 12px;
background: var(--MI_THEME-folderHeaderBg);
-webkit-backdrop-filter: var(--MI-blur, blur(15px));
backdrop-filter: var(--MI-blur, blur(15px));
border-radius: 6px;
transition: border-radius 0.3s;
&:hover {
text-decoration: none;
background: var(--MI_THEME-folderHeaderHoverBg);
}
&:focus-within {
outline-offset: 2px;
}
&.active {
color: var(--MI_THEME-accent);
background: var(--MI_THEME-folderHeaderHoverBg);
}
&.opened {
border-radius: 6px 6px 0 0;
}
}
.headerUpper {
display: flex;
align-items: center;
}
.headerLower {
color: color(from var(--MI_THEME-fg) srgb r g b / 0.75);
font-size: .85em;
padding-left: 4px;
}
.headerIcon {
margin-right: 0.75em;
flex-shrink: 0;
text-align: center;
opacity: 0.8;
&:empty {
display: none;
& + .headerText {
padding-left: 4px;
}
}
}
.headerText {
white-space: nowrap;
text-overflow: ellipsis;
overflow: hidden;
padding-right: 12px;
}
.headerTextMain,
.headerTextSub {
width: fit-content;
max-width: 100%;
}
.headerTextSub {
color: color(from var(--MI_THEME-fg) srgb r g b / 0.75);
font-size: .85em;
}
.headerRight {
margin-left: auto;
color: color(from var(--MI_THEME-fg) srgb r g b / 0.75);
white-space: nowrap;
}
.headerRightText:not(:empty) {
margin-right: 0.75em;
}
.body {
background: var(--MI_THEME-panel);
border-radius: 0 0 6px 6px;
container-type: inline-size;
&.bgSame {
background: var(--MI_THEME-bg);
.inBodyHeader {
background: color(from var(--MI_THEME-bg) srgb r g b / 0.75);
}
}
}
.inBodyHeader {
background: color(from var(--MI_THEME-panel) srgb r g b / 0.75);
-webkit-backdrop-filter: var(--MI-blur, blur(15px));
backdrop-filter: var(--MI-blur, blur(15px));
border-bottom: solid 0.5px var(--MI_THEME-divider);
}
.inBodyFooter {
padding: 12px;
background: color(from var(--MI_THEME-bg) srgb r g b / 0.5);
-webkit-backdrop-filter: var(--MI-blur, blur(15px));
backdrop-filter: var(--MI-blur, blur(15px));
background-size: auto auto;
background-image: repeating-linear-gradient(135deg, transparent, transparent 5px, var(--MI_THEME-panel) 5px, var(--MI_THEME-panel) 10px);
border-radius: 0 0 6px 6px;
}
</style>