feat(projects): add visactor plugin demos (#658)

* feat: add vtable plugin

* feat: add vchart hook

* feat: add dark mode support in vtable

* feat: add visactor icon

* feat: add vtable-gantt plugin

* fix: fix theme update in vtable-gantt

* feat: update visactor version

src/hooks/common/vchart.ts

@@ -0,0 +1,157 @@
+import { computed, effectScope, onScopeDispose, ref, watch } from 'vue';
+import VChart, { registerLiquidChart } from '@visactor/vchart';
+import type { ISpec, ITheme } from '@visactor/vchart';
+import light from '@visactor/vchart-theme/public/light.json';
+import dark from '@visactor/vchart-theme/public/dark.json';
+import { useElementSize } from '@vueuse/core';
+import { useThemeStore } from '@/store/modules/theme';
+registerLiquidChart();
+
+// register the theme
+VChart.ThemeManager.registerTheme('light', light as ITheme);
+VChart.ThemeManager.registerTheme('dark', dark as ITheme);
+
+interface ChartHooks {
+  onRender?: (chart: VChart) => void | Promise<void>;
+  onUpdated?: (chart: VChart) => void | Promise<void>;
+  onDestroy?: (chart: VChart) => void | Promise<void>;
+}
+
+export function useVChart<T extends ISpec>(specFactory: () => T, hooks: ChartHooks = {}) {
+  const scope = effectScope();
+  const themeStore = useThemeStore();
+  const darkMode = computed(() => themeStore.darkMode);
+
+  const domRef = ref<HTMLElement | null>(null);
+  const initialSize = { width: 0, height: 0 };
+  const { width, height } = useElementSize(domRef, initialSize);
+
+  let chart: VChart | null = null;
+  const spec: T = specFactory();
+
+  const { onRender, onUpdated, onDestroy } = hooks;
+
+  /**
+   * whether can render chart
+   *
+   * when domRef is ready and initialSize is valid
+   */
+  function canRender() {
+    return domRef.value && initialSize.width > 0 && initialSize.height > 0;
+  }
+
+  /** is chart rendered */
+  function isRendered() {
+    return Boolean(domRef.value && chart);
+  }
+
+  /**
+   * update chart spec
+   *
+   * @param callback callback function
+   */
+  async function updateSpec(callback: (opts: T, optsFactory: () => T) => ISpec = () => spec) {
+    if (!isRendered()) return;
+
+    const updatedOpts = callback(spec, specFactory);
+
+    Object.assign(spec, updatedOpts);
+
+    if (isRendered()) {
+      chart?.release();
+    }
+
+    chart?.updateSpec({ ...updatedOpts }, true);
+
+    await onUpdated?.(chart!);
+  }
+
+  function setSpec(newSpec: T) {
+    chart?.updateSpec(newSpec);
+  }
+
+  /** render chart */
+  async function render() {
+    if (!isRendered()) {
+      // apply the theme
+      if (darkMode.value) {
+        VChart.ThemeManager.setCurrentTheme('dark');
+      } else {
+        VChart.ThemeManager.setCurrentTheme('light');
+      }
+
+      chart = new VChart(spec, { dom: domRef.value as HTMLElement });
+      chart.renderSync();
+
+      await onRender?.(chart);
+    }
+  }
+
+  /** resize chart */
+  function resize() {
+    // chart?.resize();
+  }
+
+  /** destroy chart */
+  async function destroy() {
+    if (!chart) return;
+
+    await onDestroy?.(chart);
+    chart?.release();
+    chart = null;
+  }
+
+  /** change chart theme */
+  async function changeTheme() {
+    await destroy();
+    await render();
+    await onUpdated?.(chart!);
+  }
+
+  /**
+   * render chart by size
+   *
+   * @param w width
+   * @param h height
+   */
+  async function renderChartBySize(w: number, h: number) {
+    initialSize.width = w;
+    initialSize.height = h;
+
+    // size is abnormal, destroy chart
+    if (!canRender()) {
+      await destroy();
+
+      return;
+    }
+
+    // resize chart
+    if (isRendered()) {
+      resize();
+    }
+
+    // render chart
+    await render();
+  }
+
+  scope.run(() => {
+    watch([width, height], ([newWidth, newHeight]) => {
+      renderChartBySize(newWidth, newHeight);
+    });
+
+    watch(darkMode, () => {
+      changeTheme();
+    });
+  });
+
+  onScopeDispose(() => {
+    destroy();
+    scope.stop();
+  });
+
+  return {
+    domRef,
+    updateSpec,
+    setSpec
+  };
+}