1 files changed, 159 insertions, 0 deletions
diff --git a/packages/frontend/src/components/MkFolder.vue b/packages/frontend/src/components/MkFolder.vue
new file mode 100644
index 0000000000..9e83b07cd7
--- /dev/null
+++ b/packages/frontend/src/components/MkFolder.vue
@@ -0,0 +1,159 @@
+<template>
+<div v-size="{ max: [500] }" class="ssazuxis">
+	<header class="_button" :style="{ background: bg }" @click="showBody = !showBody">
+		<div class="title"><slot name="header"></slot></div>
+		<div class="divider"></div>
+		<button class="_button">
+			<template v-if="showBody"><i class="ti ti-chevron-up"></i></template>
+			<template v-else><i class="ti ti-chevron-down"></i></template>
+		</button>
+	</header>
+	<transition
+		:name="$store.state.animation ? 'folder-toggle' : ''"
+		@enter="enter"
+		@after-enter="afterEnter"
+		@leave="leave"
+		@after-leave="afterLeave"
+	>
+		<div v-show="showBody">
+			<slot></slot>
+		</div>
+	</transition>
+</div>
+</template>
+
+<script lang="ts">
+import { defineComponent } from 'vue';
+import tinycolor from 'tinycolor2';
+
+const localStoragePrefix = 'ui:folder:';
+
+export default defineComponent({
+	props: {
+		expanded: {
+			type: Boolean,
+			required: false,
+			default: true,
+		},
+		persistKey: {
+			type: String,
+			required: false,
+			default: null,
+		},
+	},
+	data() {
+		return {
+			bg: null,
+			showBody: (this.persistKey && localStorage.getItem(localStoragePrefix + this.persistKey)) ? localStorage.getItem(localStoragePrefix + this.persistKey) === 't' : this.expanded,
+		};
+	},
+	watch: {
+		showBody() {
+			if (this.persistKey) {
+				localStorage.setItem(localStoragePrefix + this.persistKey, this.showBody ? 't' : 'f');
+			}
+		},
+	},
+	mounted() {
+		function getParentBg(el: Element | null): string {
+			if (el == null || el.tagName === 'BODY') return 'var(--bg)';
+			const bg = el.style.background || el.style.backgroundColor;
+			if (bg) {
+				return bg;
+			} else {
+				return getParentBg(el.parentElement);
+			}
+		}
+		const rawBg = getParentBg(this.$el);
+		const bg = tinycolor(rawBg.startsWith('var(') ? getComputedStyle(document.documentElement).getPropertyValue(rawBg.slice(4, -1)) : rawBg);
+		bg.setAlpha(0.85);
+		this.bg = bg.toRgbString();
+	},
+	methods: {
+		toggleContent(show: boolean) {
+			this.showBody = show;
+		},
+
+		enter(el) {
+			const elementHeight = el.getBoundingClientRect().height;
+			el.style.height = 0;
+			el.offsetHeight; // reflow
+			el.style.height = elementHeight + 'px';
+		},
+		afterEnter(el) {
+			el.style.height = null;
+		},
+		leave(el) {
+			const elementHeight = el.getBoundingClientRect().height;
+			el.style.height = elementHeight + 'px';
+			el.offsetHeight; // reflow
+			el.style.height = 0;
+		},
+		afterLeave(el) {
+			el.style.height = null;
+		},
+	},
+});
+</script>
+
+<style lang="scss" scoped>
+.folder-toggle-enter-active, .folder-toggle-leave-active {
+	overflow-y: hidden;
+	transition: opacity 0.5s, height 0.5s !important;
+}
+.folder-toggle-enter-from {
+	opacity: 0;
+}
+.folder-toggle-leave-to {
+	opacity: 0;
+}
+
+.ssazuxis {
+	position: relative;
+
+	> header {
+		display: flex;
+		position: relative;
+		z-index: 10;
+		position: sticky;
+		top: var(--stickyTop, 0px);
+		padding: var(--x-padding);
+		-webkit-backdrop-filter: var(--blur, blur(8px));
+		backdrop-filter: var(--blur, blur(20px));
+
+		> .title {
+			display: grid;
+			place-content: center;
+			margin: 0;
+			padding: 12px 16px 12px 0;
+
+			> i {
+				margin-right: 6px;
+			}
+
+			&:empty {
+				display: none;
+			}
+		}
+
+		> .divider {
+			flex: 1;
+			margin: auto;
+			height: 1px;
+			background: var(--divider);
+		}
+
+		> button {
+			padding: 12px 0 12px 16px;
+		}
+	}
+
+	&.max-width_500px {
+		> header {
+			> .title {
+				padding: 8px 10px 8px 0;
+			}
+		}
+	}
+}
+</style>