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9 changed files with 246 additions and 321 deletions

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@ -1,3 +1,20 @@
## 6.5.0
* Use more precise typings for all event params.
* Updated peer deps for `echarts` to `^5.4.1`.
## 6.4.1
* Improve typings for mouse event params.
## 6.4.0
* Delay the disposal of the ECharts instance to the moment the element is disconnected from the DOM if possible (#433).
## 6.3.3
* Make autoresize work for grid layout by default (#675).
## 6.3.2 ## 6.3.2
* Added basic types for events (only event names). * Added basic types for events (only event names).

122
README.md
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@ -20,13 +20,13 @@ Not ready yet? Read documentation for older versions [here →](https://github.c
$ npm install echarts vue-echarts $ npm install echarts vue-echarts
``` ```
To make `vue-echarts` work for *Vue 2* (<2.7.0), you need to have `@vue/composition-api` installed: To make `vue-echarts` work for _Vue 2_ (<2.7.0), you need to have `@vue/composition-api` installed:
```sh ```sh
npm i -D @vue/composition-api npm i -D @vue/composition-api
``` ```
If you are using *NuxtJS* on top of *Vue 2* (<2.7.0), you'll also need `@nuxtjs/composition-api`: If you are using _NuxtJS_ on top of _Vue 2_ (<2.7.0), you'll also need `@nuxtjs/composition-api`:
```sh ```sh
npm i -D @nuxtjs/composition-api npm i -D @nuxtjs/composition-api
@ -34,87 +34,7 @@ npm i -D @nuxtjs/composition-api
And then add `'@nuxtjs/composition-api/module'` in the `buildModules` option in your `nuxt.config.js`. And then add `'@nuxtjs/composition-api/module'` in the `buildModules` option in your `nuxt.config.js`.
<details> #### Example
<summary>Vue 3</summary>
```js
import { createApp } from 'vue'
import ECharts from 'vue-echarts'
import { use } from "echarts/core"
// import ECharts modules manually to reduce bundle size
import {
CanvasRenderer
} from 'echarts/renderers'
import {
BarChart
} from 'echarts/charts'
import {
GridComponent,
TooltipComponent
} from 'echarts/components'
use([
CanvasRenderer,
BarChart,
GridComponent,
TooltipComponent
])
const app = createApp(...)
// register globally (or you can do it locally)
app.component('v-chart', ECharts)
app.mount(...)
```
</details>
<details>
<summary>Vue 2</summary>
```js
import Vue from 'vue'
import ECharts from 'vue-echarts'
import { use } from 'echarts/core'
// import ECharts modules manually to reduce bundle size
import {
CanvasRenderer
} from 'echarts/renderers'
import {
BarChart
} from 'echarts/charts'
import {
GridComponent,
TooltipComponent
} from 'echarts/components'
use([
CanvasRenderer,
BarChart,
GridComponent,
TooltipComponent
]);
// register globally (or you can do it locally)
Vue.component('v-chart', ECharts)
new Vue(...)
```
</details>
We encourage manually importing components and charts from ECharts for smaller bundle size. See all supported renderers/charts/components [here →](https://github.com/apache/echarts/blob/master/src/echarts.all.ts)
But if you really want to import the whole ECharts bundle without having to import modules manually, just add this in your code:
```js
import "echarts";
```
#### SFC example
<details> <details>
<summary>Vue 3 <a href="https://stackblitz.com/edit/vue-echarts-vue-3?file=src%2FApp.vue">Demo →</a></summary> <summary>Vue 3 <a href="https://stackblitz.com/edit/vue-echarts-vue-3?file=src%2FApp.vue">Demo →</a></summary>
@ -124,7 +44,7 @@ import "echarts";
<v-chart class="chart" :option="option" /> <v-chart class="chart" :option="option" />
</template> </template>
<script> <script setup>
import { use } from "echarts/core"; import { use } from "echarts/core";
import { CanvasRenderer } from "echarts/renderers"; import { CanvasRenderer } from "echarts/renderers";
import { PieChart } from "echarts/charts"; import { PieChart } from "echarts/charts";
@ -134,7 +54,7 @@ import {
LegendComponent LegendComponent
} from "echarts/components"; } from "echarts/components";
import VChart, { THEME_KEY } from "vue-echarts"; import VChart, { THEME_KEY } from "vue-echarts";
import { ref, defineComponent } from "vue"; import { ref, provide } from "vue";
use([ use([
CanvasRenderer, CanvasRenderer,
@ -144,16 +64,9 @@ use([
LegendComponent LegendComponent
]); ]);
export default defineComponent({ provide(THEME_KEY, "dark");
name: "HelloWorld",
components: { const option = ref({
VChart
},
provide: {
[THEME_KEY]: "dark"
},
setup () {
const option = ref({
title: { title: {
text: "Traffic Sources", text: "Traffic Sources",
left: "center" left: "center"
@ -189,10 +102,6 @@ export default defineComponent({
} }
} }
] ]
});
return { option };
}
}); });
</script> </script>
@ -299,6 +208,14 @@ export default {
</details> </details>
We encourage manually importing components and charts from ECharts for smaller bundle size. See all supported renderers/charts/components [here →](https://github.com/apache/echarts/blob/master/src/echarts.all.ts)
But if you really want to import the whole ECharts bundle without having to import modules manually, just add this in your code:
```js
import "echarts";
```
### CDN & Global variable ### CDN & Global variable
Drop `<script>` inside your HTML file and access the component via `window.VueECharts`. Drop `<script>` inside your HTML file and access the component via `window.VueECharts`.
@ -310,7 +227,7 @@ Drop `<script>` inside your HTML file and access the component via `window.VueEC
```html ```html
<script src="https://cdn.jsdelivr.net/npm/vue@3.2.37"></script> <script src="https://cdn.jsdelivr.net/npm/vue@3.2.37"></script>
<script src="https://cdn.jsdelivr.net/npm/echarts@5.3.3"></script> <script src="https://cdn.jsdelivr.net/npm/echarts@5.3.3"></script>
<script src="https://cdn.jsdelivr.net/npm/vue-echarts@6.3.2"></script> <script src="https://cdn.jsdelivr.net/npm/vue-echarts@6.5.0"></script>
``` ```
<!-- vue3Scripts:end --> <!-- vue3Scripts:end -->
@ -330,7 +247,7 @@ app.component('v-chart', VueECharts)
```html ```html
<script src="https://cdn.jsdelivr.net/npm/vue@2.7.5"></script> <script src="https://cdn.jsdelivr.net/npm/vue@2.7.5"></script>
<script src="https://cdn.jsdelivr.net/npm/echarts@5.3.3"></script> <script src="https://cdn.jsdelivr.net/npm/echarts@5.3.3"></script>
<script src="https://cdn.jsdelivr.net/npm/vue-echarts@6.3.2"></script> <script src="https://cdn.jsdelivr.net/npm/vue-echarts@6.5.0"></script>
``` ```
<!-- vue2Scripts:end --> <!-- vue2Scripts:end -->
@ -448,6 +365,7 @@ import { THEME_KEY } from 'vue-echarts'
> } > }
> } > }
> ``` > ```
</details> </details>
### Methods ### Methods
@ -479,7 +397,7 @@ You can bind events with Vue's `v-on` directive.
```vue ```vue
<template> <template>
<v-chart :option="option" @highlight="handleHighlight"/> <v-chart :option="option" @highlight="handleHighlight" />
</template> </template>
``` ```

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@ -18,13 +18,13 @@
$ npm install echarts vue-echarts $ npm install echarts vue-echarts
``` ```
要在 *Vue 2*<2.7.0下使用 `vue-echarts`需要确保 `@vue/composition-api` 已经安装 要在 _Vue 2_<2.7.0下使用 `vue-echarts`需要确保 `@vue/composition-api` 已经安装
```sh ```sh
npm i -D @vue/composition-api npm i -D @vue/composition-api
``` ```
如果你在使用基于 *Vue 2*<2.7.0 *NuxtJS*那么还需要安装 `@nuxtjs/composition-api` 如果你在使用基于 _Vue 2_<2.7.0 _NuxtJS_那么还需要安装 `@nuxtjs/composition-api`
```sh ```sh
npm i -D @nuxtjs/composition-api npm i -D @nuxtjs/composition-api
@ -32,87 +32,7 @@ npm i -D @nuxtjs/composition-api
然后在 `nuxt.config.js` `buildModules` 选项中添加 `'@nuxtjs/composition-api/module'` 然后在 `nuxt.config.js` `buildModules` 选项中添加 `'@nuxtjs/composition-api/module'`
<details> #### 示例
<summary>Vue 3</summary>
```js
import { createApp } from 'vue'
import ECharts from 'vue-echarts'
import { use } from "echarts/core";
// 手动引入 ECharts 各模块来减小打包体积
import {
CanvasRenderer
} from 'echarts/renderers'
import {
BarChart
} from 'echarts/charts'
import {
GridComponent,
TooltipComponent
} from 'echarts/components'
use([
CanvasRenderer,
BarChart,
GridComponent,
TooltipComponent
]);
const app = createApp(...)
// 全局注册组件(也可以使用局部注册)
app.component('v-chart', ECharts)
app.mount(...)
```
</details>
<details>
<summary>Vue 2</summary>
```js
import Vue from 'vue'
import ECharts from 'vue-echarts'
import { use } from 'echarts/core'
// 手动引入 ECharts 各模块来减小打包体积
import {
CanvasRenderer
} from 'echarts/renderers'
import {
BarChart
} from 'echarts/charts'
import {
GridComponent,
TooltipComponent
} from 'echarts/components'
use([
CanvasRenderer,
BarChart,
GridComponent,
TooltipComponent
]);
// 全局注册组件(也可以使用局部注册)
Vue.component('v-chart', ECharts)
new Vue(...)
```
</details>
为了更小的打包体积,我们建议手动从 ECharts 引入单个图表和组件。请参考所有支持的渲染器/图表/组件。[前往 →](https://github.com/apache/echarts/blob/master/src/echarts.all.ts)
但如果你实在需要全量引入 ECharts 从而无需手动引入模块,只需要在代码中添加:
```js
import "echarts";
```
#### 单文件组件示例
<details> <details>
<summary>Vue 3 <a href="https://stackblitz.com/edit/vue-echarts-vue-3?file=src%2FApp.vue">Demo →</a></summary> <summary>Vue 3 <a href="https://stackblitz.com/edit/vue-echarts-vue-3?file=src%2FApp.vue">Demo →</a></summary>
@ -122,7 +42,7 @@ import "echarts";
<v-chart class="chart" :option="option" /> <v-chart class="chart" :option="option" />
</template> </template>
<script> <script setup>
import { use } from "echarts/core"; import { use } from "echarts/core";
import { CanvasRenderer } from "echarts/renderers"; import { CanvasRenderer } from "echarts/renderers";
import { PieChart } from "echarts/charts"; import { PieChart } from "echarts/charts";
@ -132,7 +52,7 @@ import {
LegendComponent LegendComponent
} from "echarts/components"; } from "echarts/components";
import VChart, { THEME_KEY } from "vue-echarts"; import VChart, { THEME_KEY } from "vue-echarts";
import { ref, defineComponent } from "vue"; import { ref, provide } from "vue";
use([ use([
CanvasRenderer, CanvasRenderer,
@ -142,16 +62,9 @@ use([
LegendComponent LegendComponent
]); ]);
export default defineComponent({ provide(THEME_KEY, "dark");
name: "HelloWorld",
components: { const option = ref({
VChart
},
provide: {
[THEME_KEY]: "dark"
},
setup: () => {
const option = ref({
title: { title: {
text: "Traffic Sources", text: "Traffic Sources",
left: "center" left: "center"
@ -187,10 +100,6 @@ export default defineComponent({
} }
} }
] ]
});
return { option };
}
}); });
</script> </script>
@ -297,6 +206,14 @@ export default {
</details> </details>
为了更小的打包体积,我们建议手动从 ECharts 引入单个图表和组件。请参考所有支持的渲染器/图表/组件。[前往 →](https://github.com/apache/echarts/blob/master/src/echarts.all.ts)
但如果你实在需要全量引入 ECharts 从而无需手动引入模块,只需要在代码中添加:
```js
import "echarts";
```
### CDN & 全局变量 ### CDN & 全局变量
用如下方式在 HTML 中插入 `<script>` 标签,并且通过 `window.VueECharts` 来访问组件接口: 用如下方式在 HTML 中插入 `<script>` 标签,并且通过 `window.VueECharts` 来访问组件接口:
@ -304,12 +221,11 @@ export default {
<details> <details>
<summary>Vue 3 <a href="https://stackblitz.com/edit/vue-echarts-vue-3-global?file=index.html">Demo →</a></summary> <summary>Vue 3 <a href="https://stackblitz.com/edit/vue-echarts-vue-3-global?file=index.html">Demo →</a></summary>
<!-- vue3Scripts:start --> <!-- vue3Scripts:start -->
```html ```html
<script src="https://cdn.jsdelivr.net/npm/vue@3.2.37"></script> <script src="https://cdn.jsdelivr.net/npm/vue@3.2.37"></script>
<script src="https://cdn.jsdelivr.net/npm/echarts@5.3.3"></script> <script src="https://cdn.jsdelivr.net/npm/echarts@5.3.3"></script>
<script src="https://cdn.jsdelivr.net/npm/vue-echarts@6.3.2"></script> <script src="https://cdn.jsdelivr.net/npm/vue-echarts@6.5.0"></script>
``` ```
<!-- vue3Scripts:end --> <!-- vue3Scripts:end -->
@ -329,7 +245,7 @@ app.component('v-chart', VueECharts)
```html ```html
<script src="https://cdn.jsdelivr.net/npm/vue@2.7.5"></script> <script src="https://cdn.jsdelivr.net/npm/vue@2.7.5"></script>
<script src="https://cdn.jsdelivr.net/npm/echarts@5.3.3"></script> <script src="https://cdn.jsdelivr.net/npm/echarts@5.3.3"></script>
<script src="https://cdn.jsdelivr.net/npm/vue-echarts@6.3.2"></script> <script src="https://cdn.jsdelivr.net/npm/vue-echarts@6.5.0"></script>
``` ```
<!-- vue2Scripts:end --> <!-- vue2Scripts:end -->
@ -396,7 +312,7 @@ Vue.component("v-chart", VueECharts);
```vue ```vue
<template> <template>
<v-chart :option="option" @highlight="handleHighlight"/> <v-chart :option="option" @highlight="handleHighlight" />
</template> </template>
``` ```
@ -509,6 +425,7 @@ import { THEME_KEY } from 'vue-echarts'
> } > }
> } > }
> ``` > ```
</details> </details>
### 方法 ### 方法

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@ -1,6 +1,6 @@
{ {
"name": "vue-echarts", "name": "vue-echarts",
"version": "6.3.2", "version": "6.5.0",
"description": "Vue.js component for Apache ECharts.", "description": "Vue.js component for Apache ECharts.",
"author": "GU Yiling <justice360@gmail.com>", "author": "GU Yiling <justice360@gmail.com>",
"scripts": { "scripts": {
@ -40,7 +40,7 @@
"@vue/eslint-config-typescript": "^10.0.0", "@vue/eslint-config-typescript": "^10.0.0",
"comment-mark": "^1.0.0", "comment-mark": "^1.0.0",
"core-js": "^3.23.0", "core-js": "^3.23.0",
"echarts": "^5.3.2", "echarts": "^5.4.1",
"echarts-liquidfill": "^3.1.0", "echarts-liquidfill": "^3.1.0",
"eslint": "^7.20.0", "eslint": "^7.20.0",
"eslint-plugin-prettier": "^3.3.1", "eslint-plugin-prettier": "^3.3.1",
@ -67,7 +67,7 @@
}, },
"peerDependencies": { "peerDependencies": {
"@vue/composition-api": "^1.0.5", "@vue/composition-api": "^1.0.5",
"echarts": "^5.1.2", "echarts": "^5.4.1",
"vue": "^2.6.12 || ^3.1.1" "vue": "^2.6.12 || ^3.1.1"
}, },
"jsdelivr": "dist/index.umd.min.js", "jsdelivr": "dist/index.umd.min.js",

20
pnpm-lock.yaml generated
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@ -15,7 +15,7 @@ specifiers:
'@vue/eslint-config-typescript': ^10.0.0 '@vue/eslint-config-typescript': ^10.0.0
comment-mark: ^1.0.0 comment-mark: ^1.0.0
core-js: ^3.23.0 core-js: ^3.23.0
echarts: ^5.3.2 echarts: ^5.4.1
echarts-liquidfill: ^3.1.0 echarts-liquidfill: ^3.1.0
eslint: ^7.20.0 eslint: ^7.20.0
eslint-plugin-prettier: ^3.3.1 eslint-plugin-prettier: ^3.3.1
@ -60,8 +60,8 @@ devDependencies:
'@vue/eslint-config-typescript': 10.0.0_yzev4ryi2uowr3tzgilgj3i2em '@vue/eslint-config-typescript': 10.0.0_yzev4ryi2uowr3tzgilgj3i2em
comment-mark: 1.1.1 comment-mark: 1.1.1
core-js: 3.23.3 core-js: 3.23.3
echarts: 5.3.3 echarts: 5.4.1
echarts-liquidfill: 3.1.0_echarts@5.3.3 echarts-liquidfill: 3.1.0_echarts@5.4.1
eslint: 7.32.0 eslint: 7.32.0
eslint-plugin-prettier: 3.4.1_fqyzhpusvewbsl54pqqbxqaegm eslint-plugin-prettier: 3.4.1_fqyzhpusvewbsl54pqqbxqaegm
eslint-plugin-vue: 8.7.1_eslint@7.32.0 eslint-plugin-vue: 8.7.1_eslint@7.32.0
@ -3925,19 +3925,19 @@ packages:
engines: {node: '>=6.0.0'} engines: {node: '>=6.0.0'}
dev: true dev: true
/echarts-liquidfill/3.1.0_echarts@5.3.3: /echarts-liquidfill/3.1.0_echarts@5.4.1:
resolution: {integrity: sha512-5Dlqs/jTsdTUAsd+K5LPLLTgrbbNORUSBQyk8PSy1Mg2zgHDWm83FmvA4s0ooNepCJojFYRITTQ4GU1UUSKYLw==} resolution: {integrity: sha512-5Dlqs/jTsdTUAsd+K5LPLLTgrbbNORUSBQyk8PSy1Mg2zgHDWm83FmvA4s0ooNepCJojFYRITTQ4GU1UUSKYLw==}
peerDependencies: peerDependencies:
echarts: ^5.0.1 echarts: ^5.0.1
dependencies: dependencies:
echarts: 5.3.3 echarts: 5.4.1
dev: true dev: true
/echarts/5.3.3: /echarts/5.4.1:
resolution: {integrity: sha512-BRw2serInRwO5SIwRviZ6Xgm5Lb7irgz+sLiFMmy/HOaf4SQ+7oYqxKzRHAKp4xHQ05AuHw1xvoQWJjDQq/FGw==} resolution: {integrity: sha512-9ltS3M2JB0w2EhcYjCdmtrJ+6haZcW6acBolMGIuf01Hql1yrIV01L1aRj7jsaaIULJslEP9Z3vKlEmnJaWJVQ==}
dependencies: dependencies:
tslib: 2.3.0 tslib: 2.3.0
zrender: 5.3.2 zrender: 5.4.1
dev: true dev: true
/ee-first/1.1.1: /ee-first/1.1.1:
@ -7831,8 +7831,8 @@ packages:
strip-indent: 2.0.0 strip-indent: 2.0.0
dev: true dev: true
/zrender/5.3.2: /zrender/5.4.1:
resolution: {integrity: sha512-8IiYdfwHj2rx0UeIGZGGU4WEVSDEdeVCaIg/fomejg1Xu6OifAL1GVzIPHg2D+MyUkbNgPWji90t0a8IDk+39w==} resolution: {integrity: sha512-M4Z05BHWtajY2241EmMPHglDQAJ1UyHQcYsxDNzD9XLSkPDqMq4bB28v9Pb4mvHnVQ0GxyTklZ/69xCFP6RXBA==}
dependencies: dependencies:
tslib: 2.3.0 tslib: 2.3.0
dev: true dev: true

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@ -8,7 +8,7 @@ import {
computed, computed,
inject, inject,
onMounted, onMounted,
onUnmounted, onBeforeUnmount,
h, h,
nextTick, nextTick,
watchEffect, watchEffect,
@ -38,9 +38,10 @@ import {
loadingProps loadingProps
} from "./composables"; } from "./composables";
import { omitOn, unwrapInjected } from "./utils"; import { omitOn, unwrapInjected } from "./utils";
import { register, TAG_NAME, type EChartsElement } from "./wc";
import "./style.css"; import "./style.css";
const TAG_NAME = "x-vue-echarts"; const wcRegistered = register();
if (Vue2) { if (Vue2) {
Vue2.config.ignoredElements.push(TAG_NAME); Vue2.config.ignoredElements.push(TAG_NAME);
@ -70,7 +71,7 @@ export default defineComponent({
emits: [] as unknown as Emits, emits: [] as unknown as Emits,
inheritAttrs: false, inheritAttrs: false,
setup(props, { attrs }) { setup(props, { attrs }) {
const root = shallowRef<HTMLElement>(); const root = shallowRef<EChartsElement>();
const chart = shallowRef<EChartsType>(); const chart = shallowRef<EChartsType>();
const manualOption = shallowRef<Option>(); const manualOption = shallowRef<Option>();
const defaultTheme = inject(THEME_KEY, null); const defaultTheme = inject(THEME_KEY, null);
@ -273,7 +274,17 @@ export default defineComponent({
init(); init();
}); });
onUnmounted(cleanup); onBeforeUnmount(() => {
if (wcRegistered && root.value) {
// For registered web component, we can leverage the
// `disconnectedCallback` to dispose the chart instance
// so that we can delay the cleanup after exsiting leaving
// transition.
root.value.__dispose = cleanup;
} else {
cleanup();
}
});
return { return {
chart, chart,

View File

@ -1 +1 @@
x-vue-echarts{display:block;width:100%;height:100%} x-vue-echarts{display:block;width:100%;height:100%;min-width:0}

View File

@ -1,4 +1,9 @@
import { init, type SetOptionOpts } from "echarts/core"; import {
init,
type SetOptionOpts,
type ECElementEvent,
type ElementEvent
} from "echarts/core";
import type { Ref } from "vue"; import type { Ref } from "vue";
export type Injection<T> = T | null | Ref<T | null> | { value: T | null }; export type Injection<T> = T | null | Ref<T | null> | { value: T | null };
@ -20,16 +25,28 @@ export type EventTarget = EChartsType | ZRenderType;
type SetOptionType = EChartsType["setOption"]; type SetOptionType = EChartsType["setOption"];
export type Option = Parameters<SetOptionType>[0]; export type Option = Parameters<SetOptionType>[0];
type EChartsEventName = type ElementEventName =
| "click" | "click"
| "dblclick" | "dblclick"
| "mousewheel"
| "mouseout"
| "mouseover"
| "mouseup"
| "mousedown" | "mousedown"
| "mousemove" | "mousemove"
| "mouseup"
| "mouseover"
| "mouseout"
| "globalout"
| "contextmenu" | "contextmenu"
| "drag"
| "dragstart"
| "dragend"
| "dragenter"
| "dragleave"
| "dragover"
| "drop"
| "globalout";
type ZRenderEventName = `zr:${ElementEventName}`;
type OtherEventName =
| "highlight" | "highlight"
| "downplay" | "downplay"
| "selectchanged" | "selectchanged"
@ -56,28 +73,22 @@ type EChartsEventName =
| "brush" | "brush"
| "brushEnd" | "brushEnd"
| "brushselected" | "brushselected"
| "globalcursortaken" | "globalcursortaken";
| "rendered"
| "finished"; type ElementEmits = {
type ZRenderEventName = [key in ElementEventName]: (params: ECElementEvent) => boolean;
| "click"
| "dblclick"
| "mousewheel"
| "mouseout"
| "mouseover"
| "mouseup"
| "mousedown"
| "mousemove"
| "contextmenu"
| "drag"
| "dragstart"
| "dragend"
| "dragenter"
| "dragleave"
| "dragover"
| "drop"
| "globalout";
type EventName = EChartsEventName | `zr:${ZRenderEventName}`;
export type Emits = {
[key in EventName]: null;
}; };
type ZRenderEmits = {
[key in ZRenderEventName]: (params: ElementEvent) => boolean;
};
type OtherEmits = {
[key in OtherEventName]: null;
};
export type Emits = ElementEmits &
OtherEmits & {
rendered: (params: { elapsedTime: number }) => boolean;
finished: () => boolean;
} & ZRenderEmits;

51
src/wc.ts Normal file
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@ -0,0 +1,51 @@
let registered: boolean | null = null;
export const TAG_NAME = "x-vue-echarts";
export interface EChartsElement extends HTMLElement {
__dispose: (() => void) | null;
}
export function register(): boolean {
if (registered != null) {
return registered;
}
if (
typeof HTMLElement === "undefined" ||
typeof customElements === "undefined"
) {
return (registered = false);
}
try {
// Class definitions cannot be transpiled to ES5
// so we are doing a little trick here to ensure
// we are using native classes. As we use this as
// a progressive enhancement, it will be fine even
// if the browser doesn't support native classes.
const reg = new Function(
"tag",
`class EChartsElement extends HTMLElement {
__dispose = null;
disconnectedCallback() {
if (this.__dispose) {
this.__dispose();
this.__dispose = null;
}
}
}
if (customElements.get(tag) == null) {
customElements.define(tag, EChartsElement);
}
`
);
reg(TAG_NAME);
} catch (e) {
return (registered = false);
}
return (registered = true);
}