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gaia/apps/calendar/js/views/view_selector.js

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+define(function(require, exports, module) {
+'use strict';
+
+var View = require('view');
+var core = require('core');
+var nextTick = require('common/next_tick');
+var timeObserver = require('time_observer');
+
+function ViewSelector(opts) {
+  View.call(this, opts);
+  this._showTodayDate = this._showTodayDate.bind(this);
+}
+module.exports = ViewSelector;
+
+ViewSelector.prototype = {
+  __proto__: View.prototype,
+
+  selectors: {
+    element: '#view-selector'
+  },
+
+  render: function() {
+    this._showTodayDate();
+    this.delegate(this.element, 'click', 'a', this);
+    timeObserver.on('day', this._showTodayDate);
+  },
+
+  handleEvent: function(event, target) {
+    if (target.matches('[role="tab"]')) {
+      this._toggleActiveTabOnClick(event);
+    } else {
+      this._moveToTodayOnClick(event);
+    }
+  },
+
+  _moveToTodayOnClick: function(event) {
+    var date = new Date();
+    core.timeController.move(date);
+    core.timeController.selectedDay = date;
+
+    event.preventDefault();
+  },
+
+  // FIXME: this should be handled by the router (Bug 1021445)
+  // Handle aria-selected attribute for tabs.
+  _toggleActiveTabOnClick: function(event) {
+    var tabs = this.element.querySelectorAll('[role="tab"]');
+    Array.from(tabs).forEach(tab => {
+      if (tab !== event.target) {
+        tab.setAttribute('aria-selected', false);
+        return;
+      }
+      nextTick(() => tab.setAttribute('aria-selected', true));
+    });
+  },
+
+  _showTodayDate: function() {
+    var icon = this.element.querySelector('.icon-calendar-today');
+    icon.innerHTML = (new Date()).getDate();
+  }
+};
+
+});