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<!--
SPDX-FileCopyrightText: syuilo and misskey-project
SPDX-License-Identifier: AGPL-3.0-only
-->
<template>
<canvas ref="chartEl"></canvas>
</template>
<script lang="ts" setup>
import { onMounted, useTemplateRef } from 'vue';
import { Chart } from 'chart.js';
import { useChartTooltip } from '@/use/use-chart-tooltip.js';
import { initChart } from '@/utility/init-chart.js';
export type InstanceForPie = {
name: string,
color: string | null,
value: number,
onClick?: () => void
};
initChart();
const props = defineProps<{
data: InstanceForPie[];
}>();
const chartEl = useTemplateRef('chartEl');
const { handler: externalTooltipHandler } = useChartTooltip({
position: 'middle',
});
let chartInstance: Chart;
onMounted(() => {
chartInstance = new Chart(chartEl.value, {
type: 'doughnut',
data: {
labels: props.data.map(x => x.name),
datasets: [{
backgroundColor: props.data.map(x => x.color),
borderColor: getComputedStyle(window.document.documentElement).getPropertyValue('--MI_THEME-panel'),
borderWidth: 2,
hoverOffset: 0,
data: props.data.map(x => x.value),
}],
},
options: {
layout: {
padding: {
left: 16,
right: 16,
top: 16,
bottom: 16,
},
},
onClick: (ev) => {
const hit = chartInstance.getElementsAtEventForMode(ev, 'nearest', { intersect: true }, false)[0];
if (hit && props.data[hit.index].onClick) {
props.data[hit.index].onClick();
}
},
plugins: {
legend: {
display: false,
},
tooltip: {
enabled: false,
mode: 'index',
animation: {
duration: 0,
},
external: externalTooltipHandler,
},
},
},
});
});
</script>
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