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gaia/apps/keyboard/js/settings/keyboard_settings_app.js

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+'use strict';
+
+/* global SettingsPromiseManager, CloseLockManager, DialogController,
+          MozActivity, PanelController, PromiseStorage */
+
+(function(exports) {
+
+var KeyboardSettingsApp = function KeyboardSettingsApp() {
+  this.closeLockManager = null;
+
+  this.settingsPromiseManager = null;
+  this.preferencesStore = null;
+
+  this.panelController = null;
+  this.dialogController = null;
+
+  this._closeLock = null;
+};
+
+KeyboardSettingsApp.prototype.PREFERENCES_STORE_NAME = 'preferences';
+
+KeyboardSettingsApp.prototype.start = function() {
+  this.closeLockManager = new CloseLockManager();
+  this.closeLockManager.onclose = this.close.bind(this);
+  this.closeLockManager.start();
+
+  // SettingsPromiseManager wraps Settings DB methods into promises.
+  // This must be available to *GroupView.
+  this.settingsPromiseManager = new SettingsPromiseManager();
+
+  // This is where we store keyboard specific preferences
+  this.preferencesStore = new PromiseStorage(this.PREFERENCES_STORE_NAME);
+  this.preferencesStore.start();
+
+  this.panelController = new PanelController(this);
+  this.panelController.start();
+
+  this.dialogController = new DialogController();
+  this.dialogController.start();
+
+  document.addEventListener('visibilitychange', this);
+};
+
+KeyboardSettingsApp.prototype.stop = function() {
+  this.closeLockManager.stop();
+  this.closeLockManager = null;
+
+  this.settingsPromiseManager = null;
+
+  this.preferencesStore.stop();
+  this.preferencesStore = null;
+
+  this.panelController.stop();
+  this.panelController = null;
+
+  this.dialogController.stop();
+  this.dialogController = null;
+
+  document.removeEventListener('visibilitychange', this);
+};
+
+KeyboardSettingsApp.prototype.close = function() {
+  this.stop();
+  window.close();
+};
+
+KeyboardSettingsApp.prototype.requestClose = function() {
+  // Until Haida lands this is how users could go back to Settings app
+  Promise.resolve(new MozActivity({
+    name: 'moz_configure_window',
+    data: { target: 'device' }
+  })).catch(function(e) {
+    console.error(e);
+  });
+};
+
+KeyboardSettingsApp.prototype.handleEvent = function(evt) {
+  if (document.hidden) {
+    this._closeLock =
+      this.closeLockManager.requestLock('requestClose');
+  } else if (this._closeLock) {
+    this._closeLock.unlock();
+    this._closeLock = null;
+  }
+};
+
+exports.KeyboardSettingsApp = KeyboardSettingsApp;
+
+})(window);