feat(Wechat): 支持延后 config

fjc0k · Mar 30, 2019 · 99e5cd6 · 99e5cd6
1 parent 3fb0efc
commit 99e5cd6
Showing 1 changed file with 21 additions and 14 deletions.
diff --git a/src/Wechat.ts b/src/Wechat.ts
@@ -154,37 +154,30 @@ export class WeChat {
   private ready: boolean = false
 
   private bus = new EventBus<{
+    ready: () => void,
     error: WechatErrorCallback,
   }>()
 
   private prevShareParams: WechatUpdateShareDataParams = {}
 
-  constructor(params: WechatConfigParams) {
+  constructor(params?: WechatConfigParams) {
+    this.config(params)
+  }
+
+  config(params: WechatConfigParams) {
     if (typeof wx === 'undefined') {
       throw new Error('请先引入微信 JSSDK')
     }
     wx.config(params)
     wx.ready(() => {
       this.ready = true
+      this.bus.emit('ready')
     })
     wx.error((err: any) => {
       this.bus.emit('error', err)
     })
   }
 
-  private invoke(jsApi: WechatJsApi, params: Record<string, any> = {}): Promise<any> {
-    return new Promise((resolve, reject) => {
-      if (!wx[jsApi]) reject(`wx.${jsApi} 不可用`)
-      params.success = resolve
-      params.fail = reject
-      if (this.ready) {
-        wx[jsApi](params)
-      } else {
-        wx.ready(() => wx[jsApi](params))
-      }
-    })
-  }
-
   checkJsApi<T extends WechatJsApi>(jsApiList: T[]): Promise<Record<T, boolean>> {
     return this.invoke('checkJsApi', { jsApiList })
       .then(res => res.checkResult)
@@ -245,4 +238,18 @@ export class WeChat {
   onError(callback: WechatErrorCallback) {
     this.bus.on('error', callback)
   }
+
+  private invoke(jsApi: WechatJsApi, params: Record<string, any> = {}): Promise<any> {
+    return new Promise((resolve, reject) => {
+      if (typeof wx === 'undefined') return reject('请先引入微信 JSSDK')
+      if (!wx[jsApi]) return reject(`wx.${jsApi} 不可用`)
+      params.success = resolve
+      params.fail = reject
+      if (this.ready) {
+        wx[jsApi](params)
+      } else {
+        this.bus.once('ready', () => wx[jsApi](params))
+      }
+    })
+  }
 }