remoting/webapp/crd/js/host_install_dialog.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 'use strict';
   6
   7 /** @suppress {duplicate} */
   8 var remoting = remoting || {};
   9
  10 /**
  11  * HostInstallDialog prompts the user to install host components.
  12  *
  13  * @constructor
  14  */
  15 remoting.HostInstallDialog = function() {
  16   this.continueInstallButton_ = document.getElementById(
  17       'host-install-continue');
  18   this.cancelInstallButton_ = document.getElementById(
  19       'host-install-dismiss');
  20   this.retryInstallButton_ = document.getElementById(
  21       'host-install-retry');
  22
  23   this.onOkClickedHandler_ = this.onOkClicked_.bind(this);
  24   this.onCancelClickedHandler_ = this.onCancelClicked_.bind(this);
  25   this.onRetryClickedHandler_ = this.onRetryClicked_.bind(this);
  26
  27   this.continueInstallButton_.disabled = false;
  28   this.cancelInstallButton_.disabled = false;
  29
  30   /** @private {function():void} */
  31   this.onDoneHandler_ = function() {};
  32
  33   /** @private {function(!remoting.Error):void} */
  34   this.onErrorHandler_ = function(error) {};
  35
  36   /** @private {remoting.HostInstaller} */
  37   this.hostInstaller_ = new remoting.HostInstaller();
  38 };
  39
  40 /**
  41  * Starts downloading host components and shows installation prompt.
  42  *
  43  * @param {function():void} onDone Callback called when user clicks Ok,
  44  * presumably after installing the host. The handler must verify that the host
  45  * has been installed and call tryAgain() otherwise.
  46  * @param {function(!remoting.Error):void} onError Callback called when user
  47  *    clicks Cancel button or there is some other unexpected error.
  48  * @return {void}
  49  */
  50 remoting.HostInstallDialog.prototype.show = function(onDone, onError) {
  51   this.continueInstallButton_.addEventListener(
  52       'click', this.onOkClickedHandler_, false);
  53   this.cancelInstallButton_.addEventListener(
  54       'click', this.onCancelClickedHandler_, false);
  55   remoting.setMode(remoting.AppMode.HOST_INSTALL_PROMPT);
  56
  57   this.onDoneHandler_ = onDone;
  58
  59   this.onErrorHandler_ = onError;
  60
  61   /** @type {remoting.HostInstaller} */
  62   var hostInstaller = new remoting.HostInstaller();
  63
  64   /** @type {remoting.HostInstallDialog} */
  65   var that = this;
  66
  67   this.hostInstaller_.downloadAndWaitForInstall().then(function() {
  68     that.continueInstallButton_.click();
  69     that.hostInstaller_.cancel();
  70   }, function(){
  71     that.onErrorHandler_(new remoting.Error(remoting.Error.Tag.CANCELLED));
  72     that.hostInstaller_.cancel();
  73   });
  74 };
  75
  76 /**
  77  * In manual host installation, onDone handler must call this method if it
  78  * detects that the host components are still unavailable. The same onDone
  79  * and onError callbacks will be used when user clicks Ok or Cancel.
  80  */
  81 remoting.HostInstallDialog.prototype.tryAgain = function() {
  82   this.retryInstallButton_.addEventListener(
  83       'click', this.onRetryClickedHandler_.bind(this), false);
  84   remoting.setMode(remoting.AppMode.HOST_INSTALL_PENDING);
  85   this.continueInstallButton_.disabled = false;
  86   this.cancelInstallButton_.disabled = false;
  87 };
  88
  89 remoting.HostInstallDialog.prototype.onOkClicked_ = function() {
  90   this.continueInstallButton_.removeEventListener(
  91       'click', this.onOkClickedHandler_, false);
  92   this.cancelInstallButton_.removeEventListener(
  93       'click', this.onCancelClickedHandler_, false);
  94   this.continueInstallButton_.disabled = true;
  95   this.cancelInstallButton_.disabled = true;
  96
  97   this.onDoneHandler_();
  98 };
  99
 100 remoting.HostInstallDialog.prototype.onCancelClicked_ = function() {
 101   this.continueInstallButton_.removeEventListener(
 102       'click', this.onOkClickedHandler_, false);
 103   this.cancelInstallButton_.removeEventListener(
 104       'click', this.onCancelClickedHandler_, false);
 105   this.hostInstaller_.cancel();
 106   this.onErrorHandler_(new remoting.Error(remoting.Error.Tag.CANCELLED));
 107 };
 108
 109 remoting.HostInstallDialog.prototype.onRetryClicked_ = function() {
 110   this.retryInstallButton_.removeEventListener(
 111       'click', this.onRetryClickedHandler_.bind(this), false);
 112   this.continueInstallButton_.addEventListener(
 113       'click', this.onOkClickedHandler_, false);
 114   this.cancelInstallButton_.addEventListener(
 115       'click', this.onCancelClickedHandler_, false);
 116   remoting.setMode(remoting.AppMode.HOST_INSTALL_PROMPT);
 117 };