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gaia/apps/camera/js/controllers/indicators.js

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+define(function(require, exports, module) {
+'use strict';
+
+/**
+ * Dependencies
+ */
+
+var debug = require('debug')('controller:indicators');
+var IndicatorsView = require('views/indicators');
+
+/**
+ * Exports
+ */
+
+module.exports = function(app) { return new IndicatorsController(app); };
+module.exports.IndicatorsController = IndicatorsController;
+
+/**
+ * Initialize a new `IndicatorsController`
+ *
+ * @param {Object} options
+ */
+function IndicatorsController(app) {
+  this.app = app;
+  this.settings = app.settings;
+  this.configure = this.configure.bind(this);
+  this.createView();
+  this.configure();
+  this.bindEvents();
+  debug('initialized');
+}
+
+/**
+ * Creates and injects the view.
+ *
+ * The view is hidden until the
+ * settings are configured.
+ *
+ * @private
+ */
+IndicatorsController.prototype.createView = function() {
+  debug('create view');
+  this.view = this.app.views.indicators || new IndicatorsView();
+  this.view.appendTo(this.app.el);
+  debug('view created');
+};
+
+/**
+ * Bind to relevant events.
+ *
+ * @public
+ */
+IndicatorsController.prototype.bindEvents = function() {
+  this.settings.countdown.on('change:selected', this.view.setter('countdown'));
+  this.settings.mode.on('change:selected', this.view.setter('mode'));
+  this.settings.hdr.on('change:selected', this.view.setter('hdr'));
+  this.app.on('change:batteryStatus', this.view.setter('battery'));
+  this.app.on('change:recording', this.view.setter('recording'));
+  this.app.on('settings:configured', this.configure);
+
+  // Handle indicators screen reader visibility
+  // depending on settings visibility. When settings
+  // are open, though the view is behind an overlay
+  // and not hidden off screen, it still needs
+  // to be hidden from the screen reader.
+  this.app.on('settings:opened', this.view.setter('ariaHidden', true));
+  this.app.on('settings:closed', this.view.setter('ariaHidden', false));
+
+  // Preview gallery
+  this.app.on('previewgallery:opened', this.view.hide);
+  this.app.on('previewgallery:closed', this.view.show);
+  debug('events bound');
+};
+
+/**
+ * Configures the view to match
+ * current settings state.
+ *
+ * @private
+ */
+IndicatorsController.prototype.configure = function() {
+  debug('configuring');
+  this.view.set('hdr', this.settings.hdr.selected('key'));
+  this.view.set('countdown', this.settings.countdown.selected('key'));
+  this.view.set('battery', this.app.get('batteryStatus'));
+  debug('configured');
+};
+
+});