:pizza:

3 files changed, 196 insertions, 0 deletions

diff --git a/src/client/app/common/views/components/index.ts b/src/client/app/common/views/components/index.ts
index 422a3da050..4700b6269e 100644
--- a/src/client/app/common/views/components/index.ts
+++ b/src/client/app/common/views/components/index.ts
@@ -1,5 +1,6 @@
 import Vue from 'vue';
 
+import trends from './trends.vue';
 import analogClock from './analog-clock.vue';
 import menu from './menu.vue';
 import noteHeader from './note-header.vue';
@@ -40,6 +41,7 @@ import uiSelect from './ui/select.vue';
 import formButton from './ui/form/button.vue';
 import formRadio from './ui/form/radio.vue';
 
+Vue.component('mk-trends', trends);
 Vue.component('mk-analog-clock', analogClock);
 Vue.component('mk-menu', menu);
 Vue.component('mk-note-header', noteHeader);
diff --git a/src/client/app/common/views/components/trends.chart.vue b/src/client/app/common/views/components/trends.chart.vue
new file mode 100644
index 0000000000..723a3947f8
--- /dev/null
+++ b/src/client/app/common/views/components/trends.chart.vue
@@ -0,0 +1,89 @@
+<template>
+<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`" style="overflow:visible">
+	<defs>
+		<linearGradient :id="gradientId" x1="0" x2="0" y1="1" y2="0">
+			<stop offset="0%" stop-color="hsl(200, 80%, 70%)"></stop>
+			<stop offset="100%" stop-color="hsl(90, 80%, 70%)"></stop>
+		</linearGradient>
+		<mask :id="maskId" x="0" y="0" :width="viewBoxX" :height="viewBoxY">
+			<polygon
+				:points="polygonPoints"
+				fill="#fff"
+				fill-opacity="0.5"/>
+			<polyline
+				:points="polylinePoints"
+				fill="none"
+				stroke="#fff"
+				stroke-width="2"/>
+			<circle
+				:cx="headX"
+				:cy="headY"
+				r="3"
+				fill="#fff"/>
+		</mask>
+	</defs>
+	<rect
+		x="-10" y="-10"
+		:width="viewBoxX + 20" :height="viewBoxY + 20"
+		:style="`stroke: none; fill: url(#${ gradientId }); mask: url(#${ maskId })`"/>
+</svg>
+</template>
+
+<script lang="ts">
+import Vue from 'vue';
+import * as uuid from 'uuid';
+
+export default Vue.extend({
+	props: {
+		src: {
+			type: Array,
+			required: true
+		}
+	},
+	data() {
+		return {
+			viewBoxX: 50,
+			viewBoxY: 30,
+			gradientId: uuid(),
+			maskId: uuid(),
+			polylinePoints: '',
+			polygonPoints: '',
+			headX: null,
+			headY: null,
+			clock: null
+		};
+	},
+	watch: {
+		src() {
+			this.draw();
+		}
+	},
+	created() {
+		this.draw();
+
+		// Vueが何故かWatchを発動させない場合があるので
+		this.clock = setInterval(this.draw, 1000);
+	},
+	beforeDestroy() {
+		clearInterval(this.clock);
+	},
+	methods: {
+		draw() {
+			const stats = this.src.slice().reverse();
+			const peak = Math.max.apply(null, stats) || 1;
+
+			const polylinePoints = stats.map((n, i) => [
+				i * (this.viewBoxX / (stats.length - 1)),
+				(1 - (n / peak)) * this.viewBoxY
+			]);
+
+			this.polylinePoints = polylinePoints.map(xy => `${xy[0]},${xy[1]}`).join(' ');
+
+			this.polygonPoints = `0,${ this.viewBoxY } ${ this.polylinePoints } ${ this.viewBoxX },${ this.viewBoxY }`;
+
+			this.headX = polylinePoints[polylinePoints.length - 1][0];
+			this.headY = polylinePoints[polylinePoints.length - 1][1];
+		}
+	}
+});
+</script>
diff --git a/src/client/app/common/views/components/trends.vue b/src/client/app/common/views/components/trends.vue
new file mode 100644
index 0000000000..627edc3876
--- /dev/null
+++ b/src/client/app/common/views/components/trends.vue
@@ -0,0 +1,105 @@
+<template>
+<div class="csqvmxybqbycalfhkxvyfrgbrdalkaoc">
+	<p class="fetching" v-if="fetching">%fa:spinner .pulse .fw%%i18n:common.loading%<mk-ellipsis/></p>
+	<p class="empty" v-else-if="stats.length == 0">%fa:exclamation-circle%%i18n:@empty%</p>
+	<!-- トランジションを有効にするとなぜかメモリリークする -->
+	<!-- <transition-group v-else tag="div" name="chart"> -->
+	<div>
+		<div v-for="stat in stats" :key="stat.tag">
+			<div class="tag">
+				<router-link :to="`/tags/${ encodeURIComponent(stat.tag) }`" :title="stat.tag">#{{ stat.tag }}</router-link>
+				<p>{{ '%i18n:@count%'.replace('{}', stat.usersCount) }}</p>
+			</div>
+			<x-chart class="chart" :src="stat.chart"/>
+		</div>
+	</div>
+	<!-- </transition-group> -->
+</div>
+</template>
+
+<script lang="ts">
+import Vue from 'vue';
+import XChart from './trends.chart.vue';
+
+export default Vue.extend({
+	components: {
+		XChart
+	},
+	data() {
+		return {
+			stats: [],
+			fetching: true,
+			clock: null
+		};
+	},
+	mounted() {
+		this.fetch();
+		this.clock = setInterval(this.fetch, 1000 * 60);
+	},
+	beforeDestroy() {
+		clearInterval(this.clock);
+	},
+	methods: {
+		fetch() {
+			(this as any).api('hashtags/trend').then(stats => {
+				this.stats = stats;
+				this.fetching = false;
+			});
+		}
+	}
+});
+</script>
+
+<style lang="stylus" scoped>
+root(isDark)
+	> .fetching
+	> .empty
+		margin 0
+		padding 16px
+		text-align center
+		color #aaa
+
+		> [data-fa]
+			margin-right 4px
+
+	> div
+		.chart-move
+			transition transform 1s ease
+
+		> div
+			display flex
+			align-items center
+			padding 14px 16px
+
+			&:not(:last-child)
+				border-bottom solid 1px isDark ? #393f4f : #eee
+
+			> .tag
+				flex 1
+				overflow hidden
+				font-size 14px
+				color isDark ? #9baec8 : #65727b
+
+				> a
+					display block
+					width 100%
+					white-space nowrap
+					overflow hidden
+					text-overflow ellipsis
+					color inherit
+
+				> p
+					margin 0
+					font-size 75%
+					opacity 0.7
+
+			> .chart
+				height 30px
+
+.csqvmxybqbycalfhkxvyfrgbrdalkaoc[data-darkmode]
+	root(true)
+
+.csqvmxybqbycalfhkxvyfrgbrdalkaoc:not([data-darkmode])
+	root(false)
+
+</style>