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<!--
SPDX-FileCopyrightText: syuilo and misskey-project
SPDX-License-Identifier: AGPL-3.0-only
-->
<template>
<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`" :class="$style.root" @mousedown.prevent="onMousedown">
<polyline
:points="pointsNote"
fill="none"
stroke-width="1"
stroke="#41ddde"
/>
<polyline
:points="pointsReply"
fill="none"
stroke-width="1"
stroke="#f7796c"
/>
<polyline
:points="pointsRenote"
fill="none"
stroke-width="1"
stroke="#a1de41"
/>
<polyline
:points="pointsTotal"
fill="none"
stroke-width="1"
stroke="#555"
stroke-dasharray="2 2"
/>
</svg>
</template>
<script lang="ts" setup>
import { onMounted, ref } from 'vue';
const props = defineProps<{
activity: {
total: number;
notes: number;
replies: number;
renotes: number;
}[]
}>();
const viewBoxX = ref(147);
const viewBoxY = ref(60);
const zoom = ref(1);
const pos = ref(0);
const pointsNote = ref<string>();
const pointsReply = ref<string>();
const pointsRenote = ref<string>();
const pointsTotal = ref<string>();
function dragListen(fn: (ev: MouseEvent | TouchEvent) => void) {
window.addEventListener('mousemove', fn);
window.addEventListener('mouseleave', dragClear.bind(null, fn));
window.addEventListener('mouseup', dragClear.bind(null, fn));
}
function dragClear(fn: (ev: MouseEvent | TouchEvent) => void) {
window.removeEventListener('mousemove', fn);
window.removeEventListener('mouseleave', dragClear as any);
window.removeEventListener('mouseup', dragClear as any);
}
function getPositionX(event: MouseEvent | TouchEvent) {
return 'touches' in event && event.touches.length > 0 ? event.touches[0].clientX : 'clientX' in event ? event.clientX : 0;
}
function getPositionY(event: MouseEvent | TouchEvent) {
return 'touches' in event && event.touches.length > 0 ? event.touches[0].clientY : 'clientY' in event ? event.clientY : 0;
}
function onMousedown(ev: MouseEvent) {
const clickX = ev.clientX;
const clickY = ev.clientY;
const baseZoom = zoom.value;
const basePos = pos.value;
// 動かした時
dragListen(me => {
const x = getPositionX(me);
const y = getPositionY(me);
let moveLeft = x - clickX;
let moveTop = y - clickY;
zoom.value = Math.max(1, baseZoom + (-moveTop / 20));
pos.value = Math.min(0, basePos + moveLeft);
if (pos.value < -(((props.activity.length - 1) * zoom.value) - viewBoxX.value)) pos.value = -(((props.activity.length - 1) * zoom.value) - viewBoxX.value);
render();
});
}
function render() {
const peak = Math.max(...props.activity.map(d => d.total));
if (peak !== 0) {
const activity = props.activity.slice().reverse();
pointsNote.value = activity.map((d, i) => `${(i * zoom.value) + pos.value},${(1 - (d.notes / peak)) * viewBoxY.value}`).join(' ');
pointsReply.value = activity.map((d, i) => `${(i * zoom.value) + pos.value},${(1 - (d.replies / peak)) * viewBoxY.value}`).join(' ');
pointsRenote.value = activity.map((d, i) => `${(i * zoom.value) + pos.value},${(1 - (d.renotes / peak)) * viewBoxY.value}`).join(' ');
pointsTotal.value = activity.map((d, i) => `${(i * zoom.value) + pos.value},${(1 - (d.total / peak)) * viewBoxY.value}`).join(' ');
}
}
onMounted(() => {
render();
});
</script>
<style lang="scss" module>
.root {
display: block;
padding: 16px;
width: 100%;
box-sizing: border-box;
cursor: all-scroll;
}
</style>
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