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<template>
<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`" @mousedown.prevent="onMousedown">
<polyline
:points="pointsNote"
fill="none"
stroke-width="1"
stroke="#41ddde"/>
<polyline
:points="pointsReply"
fill="none"
stroke-width="1"
stroke="#f7796c"/>
<polyline
:points="pointsRenote"
fill="none"
stroke-width="1"
stroke="#a1de41"/>
<polyline
:points="pointsTotal"
fill="none"
stroke-width="1"
stroke="#555"
stroke-dasharray="2 2"/>
</svg>
</template>
<script lang="ts">
import { defineComponent } from 'vue';
import * as os from '@/os';
function dragListen(fn) {
window.addEventListener('mousemove', fn);
window.addEventListener('mouseleave', dragClear.bind(null, fn));
window.addEventListener('mouseup', dragClear.bind(null, fn));
}
function dragClear(fn) {
window.removeEventListener('mousemove', fn);
window.removeEventListener('mouseleave', dragClear);
window.removeEventListener('mouseup', dragClear);
}
export default defineComponent({
props: ['data'],
data() {
return {
viewBoxX: 147,
viewBoxY: 60,
zoom: 1,
pos: 0,
pointsNote: null,
pointsReply: null,
pointsRenote: null,
pointsTotal: null
};
},
created() {
for (const d of this.data) {
d.total = d.notes + d.replies + d.renotes;
}
this.render();
},
methods: {
render() {
const peak = Math.max.apply(null, this.data.map(d => d.total));
if (peak != 0) {
const data = this.data.slice().reverse();
this.pointsNote = data.map((d, i) => `${(i * this.zoom) + this.pos},${(1 - (d.notes / peak)) * this.viewBoxY}`).join(' ');
this.pointsReply = data.map((d, i) => `${(i * this.zoom) + this.pos},${(1 - (d.replies / peak)) * this.viewBoxY}`).join(' ');
this.pointsRenote = data.map((d, i) => `${(i * this.zoom) + this.pos},${(1 - (d.renotes / peak)) * this.viewBoxY}`).join(' ');
this.pointsTotal = data.map((d, i) => `${(i * this.zoom) + this.pos},${(1 - (d.total / peak)) * this.viewBoxY}`).join(' ');
}
},
onMousedown(e) {
const clickX = e.clientX;
const clickY = e.clientY;
const baseZoom = this.zoom;
const basePos = this.pos;
// 動かした時
dragListen(me => {
let moveLeft = me.clientX - clickX;
let moveTop = me.clientY - clickY;
this.zoom = baseZoom + (-moveTop / 20);
this.pos = basePos + moveLeft;
if (this.zoom < 1) this.zoom = 1;
if (this.pos > 0) this.pos = 0;
if (this.pos < -(((this.data.length - 1) * this.zoom) - this.viewBoxX)) this.pos = -(((this.data.length - 1) * this.zoom) - this.viewBoxX);
this.render();
});
}
}
});
</script>
<style lang="scss" scoped>
svg {
display: block;
padding: 16px;
width: 100%;
box-sizing: border-box;
cursor: all-scroll;
}
</style>
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