enhance(client): Chartjsのツールチップを自前に

packages/client/src/components/chart.vue

@@ -8,7 +8,7 @@
 </template>
 
 <script lang="ts">
-import { defineComponent, onMounted, ref, watch, PropType } from 'vue';
+import { defineComponent, onMounted, ref, watch, PropType, onUnmounted, shallowRef } from 'vue';
 import {
 	Chart,
 	ArcElement,
@@ -31,6 +31,7 @@ import { enUS } from 'date-fns/locale';
 import zoomPlugin from 'chartjs-plugin-zoom';
 import * as os from '@/os';
 import { defaultStore } from '@/store';
+import MkChartTooltip from '@/components/chart-tooltip.vue';
 
 Chart.register(
 	ArcElement,
@@ -137,6 +138,43 @@ export default defineComponent({
 			}));
 		};
 
+		const tooltipShowing = ref(false);
+		const tooltipX = ref(0);
+		const tooltipY = ref(0);
+		const tooltipTitle = ref(null);
+		const tooltipSeries = ref(null);
+		let disposeTooltipComponent;
+
+		os.popup(MkChartTooltip, {
+			showing: tooltipShowing,
+			x: tooltipX,
+			y: tooltipY,
+			title: tooltipTitle,
+			series: tooltipSeries,
+		}, {}).then(({ dispose }) => {
+			disposeTooltipComponent = dispose;
+		});
+
+		function externalTooltipHandler(context) {
+			if (context.tooltip.opacity === 0) {
+				tooltipShowing.value = false;
+				return;
+			}
+
+			tooltipTitle.value = context.tooltip.title[0];
+			tooltipSeries.value = context.tooltip.body.map((b, i) => ({
+				backgroundColor: context.tooltip.labelColors[i].backgroundColor,
+				borderColor: context.tooltip.labelColors[i].borderColor,
+				text: b.lines[0],
+			}));
+
+			const rect = context.chart.canvas.getBoundingClientRect();
+
+			tooltipShowing.value = true;
+			tooltipX.value = rect.left + window.pageXOffset + context.tooltip.caretX;
+			tooltipY.value = rect.top + window.pageYOffset + context.tooltip.caretY;
+		}
+
 		const render = () => {
 			if (chartInstance) {
 				chartInstance.destroy();
@@ -222,10 +260,12 @@ export default defineComponent({
 							},
 						},
 						tooltip: {
+							enabled: false,
 							mode: 'index',
 							animation: {
 								duration: 0,
 							},
+							external: externalTooltipHandler,
 						},
 						zoom: {
 							pan: {
@@ -684,6 +724,10 @@ export default defineComponent({
 			fetchAndRender();
 		});
 
+		onUnmounted(() => {
+			if (disposeTooltipComponent) disposeTooltipComponent();
+		});
+
 		return {
 			chartEl,
 			fetching,