mirror of
https://github.com/paricafe/misskey.git
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78 lines
2 KiB
Vue
78 lines
2 KiB
Vue
<!--
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SPDX-FileCopyrightText: syuilo and misskey-project
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SPDX-License-Identifier: AGPL-3.0-only
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-->
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<template>
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<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`" style="overflow:visible">
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<defs>
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<linearGradient :id="gradientId" x1="0" x2="0" y1="1" y2="0">
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<stop offset="0%" :stop-color="color" stop-opacity="0"></stop>
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<stop offset="100%" :stop-color="color" stop-opacity="0.65"></stop>
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</linearGradient>
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</defs>
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<polygon
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:points="polygonPoints"
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:style="`stroke: none; fill: url(#${ gradientId });`"
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/>
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<polyline
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:points="polylinePoints"
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fill="none"
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:stroke="color"
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stroke-width="2"
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/>
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<circle
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:cx="headX ?? undefined"
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:cy="headY ?? undefined"
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r="3"
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:fill="color"
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/>
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</svg>
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</template>
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<script lang="ts" setup>
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import { watch, ref } from 'vue';
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import { v4 as uuid } from 'uuid';
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import tinycolor from 'tinycolor2';
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import { useInterval } from '@/scripts/use-interval.js';
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const props = defineProps<{
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src: number[];
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}>();
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const viewBoxX = 50;
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const viewBoxY = 50;
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const gradientId = uuid();
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const polylinePoints = ref('');
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const polygonPoints = ref('');
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const headX = ref<number | null>(null);
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const headY = ref<number | null>(null);
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const clock = ref<number | null>(null);
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const accent = tinycolor(getComputedStyle(document.documentElement).getPropertyValue('--accent'));
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const color = accent.toRgbString();
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function draw(): void {
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const stats = props.src.slice().reverse();
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const peak = Math.max.apply(null, stats) || 1;
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const _polylinePoints = stats.map((n, i) => [
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i * (viewBoxX / (stats.length - 1)),
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(1 - (n / peak)) * viewBoxY,
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]);
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polylinePoints.value = _polylinePoints.map(xy => `${xy[0]},${xy[1]}`).join(' ');
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polygonPoints.value = `0,${ viewBoxY } ${ polylinePoints.value } ${ viewBoxX },${ viewBoxY }`;
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headX.value = _polylinePoints.at(-1)![0];
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headY.value = _polylinePoints.at(-1)![1];
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}
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watch(() => props.src, draw, { immediate: true });
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// Vueが何故かWatchを発動させない場合があるので
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useInterval(draw, 1000, {
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immediate: false,
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afterMounted: true,
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});
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</script>
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