整理した

src/client/app/mobile/views/components/activity.vue

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+<template>
+<div class="mk-activity">
+	<svg v-if="data" ref="canvas" viewBox="0 0 30 1" preserveAspectRatio="none">
+		<g v-for="(d, i) in data">
+			<rect width="0.8" :height="d.postsH"
+				:x="i + 0.1" :y="1 - d.postsH - d.repliesH - d.repostsH"
+				fill="#41ddde"/>
+			<rect width="0.8" :height="d.repliesH"
+				:x="i + 0.1" :y="1 - d.repliesH - d.repostsH"
+				fill="#f7796c"/>
+			<rect width="0.8" :height="d.repostsH"
+				:x="i + 0.1" :y="1 - d.repostsH"
+				fill="#a1de41"/>
+			</g>
+	</svg>
+</div>
+</template>
+
+<script lang="ts">
+import Vue from 'vue';
+export default Vue.extend({
+	props: ['user'],
+	data() {
+		return {
+			fetching: true,
+			data: [],
+			peak: null
+		};
+	},
+	mounted() {
+		(this as any).api('aggregation/users/activity', {
+			userId: this.user.id,
+			limit: 30
+		}).then(data => {
+			data.forEach(d => d.total = d.posts + d.replies + d.reposts);
+			this.peak = Math.max.apply(null, data.map(d => d.total));
+			data.forEach(d => {
+				d.postsH = d.posts / this.peak;
+				d.repliesH = d.replies / this.peak;
+				d.repostsH = d.reposts / this.peak;
+			});
+			data.reverse();
+			this.data = data;
+		});
+	}
+});
+</script>
+
+<style lang="stylus" scoped>
+.mk-activity
+	max-width 600px
+	margin 0 auto
+
+	> svg
+		display block
+		width 100%
+		height 80px
+
+		> rect
+			transform-origin center
+
+</style>