support(switch account): try to click the button if found (#636)

src/puppet-web/bridge.ts

@@ -582,8 +582,14 @@ export class Bridge {
       })
     })
   }
+
+  public async clickSwitchAccount(): Promise<boolean> {
+    log.verbose('PuppetWebBridge', 'clickSwitchAccount()')
+    return this.puppet.browser.clickSwitchAccount()
+  }
 }
 
+
 /* tslint:disable:jsdoc-format */
 /* tslint:disable:max-line-length */
 /**

src/puppet-web/browser-driver.ts

@@ -18,6 +18,7 @@
  */
 import {
   Builder,
+  By,
   Capabilities,
   IWebDriverOptionsCookie,
   logging,
@@ -52,7 +53,7 @@ promiseManager.USE_PROMISE_MANAGER = false
 process.env['DBUS_SESSION_BUS_ADDRESS'] = '/dev/null'
 
 export class BrowserDriver {
-  private driver: WebDriver
+  public driver: WebDriver
 
   constructor(
     private head: HeadName,
@@ -429,6 +430,7 @@ export class BrowserDriver {
 
 // export default BrowserDriver
 export {
+  By,
   IWebDriverOptionsCookie,
   Session,
   TargetLocator,

src/puppet-web/browser.ts

@@ -35,6 +35,7 @@ import {
 import {
   BrowserDriver,
   IWebDriverOptionsCookie,
+  By,
 }                           from './browser-driver'
 
 export interface BrowserSetting {
@@ -494,6 +495,20 @@ export class Browser extends EventEmitter {
     return dead
   }
 
+  public async clickSwitchAccount(): Promise<boolean> {
+    log.verbose('PuppetWebBrowser', 'clickSwitchAccount()')
+
+    try {
+      const button = await this.driver.driver.findElement(By.linkText('Switch Account'))
+      button.click()
+      log.silly('PuppetWebBrowser', 'clickSwitchAccount() clicked!')
+      return true
+    } catch (e) {
+      log.silly('PuppetWebBrowser', 'clickSwitchAccount() button not found: %s', e && e.message || e)
+      return false
+    }
+  }
+
   public addCookie(cookies: IWebDriverOptionsCookie[]):  Promise<void>
   public addCookie(cookie:  IWebDriverOptionsCookie):    Promise<void>
 

src/puppet-web/puppet-web.ts

@@ -119,6 +119,11 @@ export class PuppetWeb extends Puppet {
       }
       log.verbose('PuppetWeb', 'initBridge() done')
 
+      const clicked = await this.bridge.clickSwitchAccount()
+      if (clicked) {
+        log.verbose('PuppetWeb', 'init() bridge.clickSwitchAccount() clicked')
+      }
+
       /**
        *  state must set to `live`
        *  before feed Watchdog