MD Settings: Google Play Store: Add subpage and polish (Take 2)

chrome/browser/resources/settings/android_apps_page/android_apps_subpage.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview
- * 'android-apps-page' is the settings page for enabling android apps.
+ * 'android-apps-subpage' is the settings subpage for managing android apps.
  */
 
 Polymer({
-  is: 'settings-android-apps-page',
+  is: 'settings-android-apps-subpage',
 
   behaviors: [I18nBehavior, PrefsBehavior],
 
   properties: {
     /** Preferences state. */
     prefs: Object,
 
     /** @private {!AndroidAppsInfo|undefined} */
-    androidAppsInfo_: Object,
+    androidAppsInfo: Object,
+
+    /** @private */
+    dialogBody_: {
+      type: String,
+      value: function() {
+        return this.i18nAdvanced(
+            'androidAppsDisableDialogMessage',
+            {substitutions: [], tags: ['br']});
+      }
+    }
   },
 
   /** @private {?settings.AndroidAppsBrowserProxy} */
   browserProxy_: null,
 
   /** @override */
   created: function() {
     this.browserProxy_ = settings.AndroidAppsBrowserProxyImpl.getInstance();
   },
 
-  /** @override */
-  ready: function() {
-    cr.addWebUIListener(
-        'android-apps-info-update', this.androidAppsInfoUpdate_.bind(this));
-    this.browserProxy_.requestAndroidAppsInfo();
-  },
-
-  /**
-   * @param {AndroidAppsInfo} info
-   * @private
-   */
-  androidAppsInfoUpdate_: function(info) {
-    this.androidAppsInfo_ = info;
-  },
-
   /**
    * @param {Event} event
    * @private
    */
   onManageAndroidAppsKeydown_: function(event) {
     if (event.key != 'Enter' && event.key != ' ')
       return;
-    this.browserProxy_.showAndroidAppsSettings(true  /** keyboardAction */);
+    this.browserProxy_.showAndroidAppsSettings(true /** keyboardAction */);
     event.stopPropagation();
   },
 
   /** @private */
   onManageAndroidAppsTap_: function(event) {
     this.browserProxy_.showAndroidAppsSettings(false /** keyboardAction */);
   },
 
   /**
-   * @return {string}
+   * @return {boolean}
    * @private
    */
-  getDialogBody_: function() {
-    return this.i18nAdvanced(
-        'androidAppsDisableDialogMessage', {substitutions: [], tags: ['br']});
+  allowRemove_: function() {
+    return this.prefs.arc.enabled.enforcement !=
+        chrome.settingsPrivate.Enforcement.ENFORCED;
   },
 
   /**
-   * Handles the change event for the arc.enabled checkbox. Shows a
-   * confirmation dialog when disabling the preference.
+   * Shows a confirmation dialog when disabling android apps.
    * @param {Event} event
    * @private
    */
-  onArcEnabledChange_: function(event) {
-    if (event.target.checked) {
-      /** @type {!SettingsCheckboxElement} */ (event.target).sendPrefChange();
-      return;
-    }
+  onRemoveTap_: function(event) {
     this.$.confirmDisableDialog.showModal();
   },
 
   /**
    * Handles the shared proxy confirmation dialog 'Confirm' button.
    * @private
    */
   onConfirmDisableDialogConfirm_: function() {
-    /** @type {!SettingsCheckboxElement} */ (this.$.enabled).sendPrefChange();
+    this.setPrefValue('arc.enabled', false);
     this.$.confirmDisableDialog.close();
+    settings.navigateToPreviousRoute();
   },
 
   /**
    * Handles the shared proxy confirmation dialog 'Cancel' button or a cancel
    * event.
    * @private
    */
   onConfirmDisableDialogCancel_: function() {
-    /** @type {!SettingsCheckboxElement} */ (this.$.enabled).resetToPrefValue();
     this.$.confirmDisableDialog.close();
   },
-
-  /**
-   * @param {!Event} e
-   * @private
-   */
-  stopPropagation_: function(e) {
-    e.stopPropagation();
-  },
 });