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      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*/
     31   this.onDoneHandler_ = function() {}
     32 
     33   /** @param {remoting.Error} error @private */
     34   this.onErrorHandler_ = function(error) {}
     35 };
     36 
     37 /** @type {Object.<string,string>} */
     38 remoting.HostInstallDialog.hostDownloadUrls = {
     39   'Win32' : 'http://dl.google.com/dl/edgedl/chrome-remote-desktop/' +
     40       'chromeremotedesktophost.msi',
     41   'MacIntel' : 'https://dl.google.com/chrome-remote-desktop/' +
     42       'chromeremotedesktop.dmg',
     43   'Linux x86_64' : 'https://dl.google.com/linux/direct/' +
     44       'chrome-remote-desktop_current_amd64.deb',
     45   'Linux i386' : 'https://dl.google.com/linux/direct/' +
     46       'chrome-remote-desktop_current_i386.deb'
     47 };
     48 
     49 /**
     50  * Starts downloading host components and shows installation prompt.
     51  *
     52  * @param {function():void} onDone Callback called when user clicks Ok,
     53  * presumably after installing the host. The handler must verify that the host
     54  * has been installed and call tryAgain() otherwise.
     55  * @param {function(remoting.Error):void} onError Callback called when user
     56  *    clicks Cancel button or there is some other unexpected error.
     57  * @return {void}
     58  */
     59 remoting.HostInstallDialog.prototype.show = function(onDone, onError) {
     60   this.continueInstallButton_.addEventListener(
     61       'click', this.onOkClickedHandler_, false);
     62   this.cancelInstallButton_.addEventListener(
     63       'click', this.onCancelClickedHandler_, false);
     64   remoting.setMode(remoting.AppMode.HOST_INSTALL_PROMPT);
     65 
     66   var hostPackageUrl =
     67       remoting.HostInstallDialog.hostDownloadUrls[navigator.platform];
     68   if (hostPackageUrl === undefined) {
     69     this.onErrorHandler_(remoting.Error.CANCELLED);
     70     return;
     71   }
     72 
     73   // Start downloading the package.
     74   if (remoting.isAppsV2) {
     75     // TODO(jamiewalch): Use chrome.downloads when it is available to
     76     // apps v2 (http://crbug.com/174046)
     77     window.open(hostPackageUrl);
     78   } else {
     79     window.location = hostPackageUrl;
     80   }
     81 
     82   /** @type {function():void} */
     83   this.onDoneHandler_ = onDone;
     84 
     85   /** @type {function(remoting.Error):void} */
     86   this.onErrorHandler_ = onError;
     87 }
     88 
     89 /**
     90  * In manual host installation, onDone handler must call this method if it
     91  * detects that the host components are still unavailable. The same onDone
     92  * and onError callbacks will be used when user clicks Ok or Cancel.
     93  */
     94 remoting.HostInstallDialog.prototype.tryAgain = function() {
     95   this.retryInstallButton_.addEventListener(
     96       'click', this.onRetryClickedHandler_.bind(this), false);
     97   remoting.setMode(remoting.AppMode.HOST_INSTALL_PENDING);
     98   this.continueInstallButton_.disabled = false;
     99   this.cancelInstallButton_.disabled = false;
    100 };
    101 
    102 remoting.HostInstallDialog.prototype.onOkClicked_ = function() {
    103   this.continueInstallButton_.removeEventListener(
    104       'click', this.onOkClickedHandler_, false);
    105   this.cancelInstallButton_.removeEventListener(
    106       'click', this.onCancelClickedHandler_, false);
    107   this.continueInstallButton_.disabled = true;
    108   this.cancelInstallButton_.disabled = true;
    109 
    110   this.onDoneHandler_();
    111 }
    112 
    113 remoting.HostInstallDialog.prototype.onCancelClicked_ = function() {
    114   this.continueInstallButton_.removeEventListener(
    115       'click', this.onOkClickedHandler_, false);
    116   this.cancelInstallButton_.removeEventListener(
    117       'click', this.onCancelClickedHandler_, false);
    118   this.onErrorHandler_(remoting.Error.CANCELLED);
    119 }
    120 
    121 remoting.HostInstallDialog.prototype.onRetryClicked_ = function() {
    122   this.retryInstallButton_.removeEventListener(
    123       'click', this.onRetryClickedHandler_.bind(this), false);
    124   this.continueInstallButton_.addEventListener(
    125       'click', this.onOkClickedHandler_, false);
    126   this.cancelInstallButton_.addEventListener(
    127       'click', this.onCancelClickedHandler_, false);
    128   remoting.setMode(remoting.AppMode.HOST_INSTALL_PROMPT);
    129 };
    130