Add ImeMenuTray element.

ash/common/system/chromeos/ime_menu/ime_menu_tray_unittest.cc

+// 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.
+
+#include "ash/common/system/chromeos/ime_menu/ime_menu_tray.h"
+
+#include "ash/common/system/tray/system_tray_notifier.h"
+#include "ash/common/wm_shell.h"
+#include "ash/test/ash_test_base.h"
+#include "ash/test/test_system_tray_delegate.h"
+#include "base/strings/utf_string_conversions.h"
+#include "ui/events/event.h"
+#include "ui/views/controls/label.h"
+
+using base::UTF8ToUTF16;
+
+namespace ash {
+
+class ImeMenuTrayTest : public test::AshTestBase {
+ public:
+  ImeMenuTrayTest() {}
+  ~ImeMenuTrayTest() override {}
+
+  ImeMenuTray* ime_menu_tray() { return ime_menu_tray_.get(); }
+
+  // test::AshTestBase:
+  void SetUp() override {
+    test::AshTestBase::SetUp();
+    ime_menu_tray_.reset(new ImeMenuTray(GetPrimaryShelf()));
+  }
+
+  void TearDown() override {
+    ime_menu_tray_.reset();
+    test::AshTestBase::TearDown();
+  }
+
+ protected:
+  // Returns true if the IME menu tray is visible.
+  bool IsVisible() { return ime_menu_tray_->visible(); }
+
+  // Returns the label text of the tray.
+  const base::string16& GetTrayText() { return ime_menu_tray_->label_->text(); }
+
+  // Returns true if the background color of the tray is active.
+  bool IsTrayBackgroundActive() {
+    return ime_menu_tray_->draw_background_as_active();
+  }
+
+ private:
+  std::unique_ptr<ImeMenuTray> ime_menu_tray_;
+
+  DISALLOW_COPY_AND_ASSIGN(ImeMenuTrayTest);
+};
+
+// Tests that visibility of IME menu tray should be consistent with the
+// activation of the IME menu.
+TEST_F(ImeMenuTrayTest, ImeMenuTrayVisibility) {
+  ASSERT_FALSE(IsVisible());
+
+  WmShell::Get()->system_tray_notifier()->NotifyRefreshIMEMenu(true);
+  EXPECT_TRUE(IsVisible());
+
+  WmShell::Get()->system_tray_notifier()->NotifyRefreshIMEMenu(false);
+  EXPECT_FALSE(IsVisible());
+}
+
+// Tests that IME menu tray shows the right info of the current IME.
+TEST_F(ImeMenuTrayTest, TrayLabelTest) {
+  WmShell::Get()->system_tray_notifier()->NotifyRefreshIMEMenu(true);
+  ASSERT_TRUE(IsVisible());
+
+  // Changes the input method to "ime1".
+  IMEInfo info1;
+  info1.id = "ime1";
+  info1.name = UTF8ToUTF16("English");
+  info1.medium_name = UTF8ToUTF16("English");
+  info1.short_name = UTF8ToUTF16("US");
+  info1.third_party = false;
+  info1.selected = true;
+  GetSystemTrayDelegate()->SetCurrentIME(info1);
+  WmShell::Get()->system_tray_notifier()->NotifyRefreshIME();
+  EXPECT_EQ(UTF8ToUTF16("US"), GetTrayText());
+
+  // Changes the input method to a third-party IME extension.
+  IMEInfo info2;
+  info2.id = "ime2";
+  info2.name = UTF8ToUTF16("English UK");
+  info2.medium_name = UTF8ToUTF16("English UK");
+  info2.short_name = UTF8ToUTF16("UK");
+  info2.third_party = true;
+  info2.selected = true;
+  GetSystemTrayDelegate()->SetCurrentIME(info2);
+  WmShell::Get()->system_tray_notifier()->NotifyRefreshIME();
+  EXPECT_EQ(UTF8ToUTF16("UK*"), GetTrayText());
+}
+
+// Tests that IME menu tray changes background color when tapped/clicked. And
+// tests that the background color becomes 'inactive' when disabling the IME
+// menu feature.
+TEST_F(ImeMenuTrayTest, PerformAction) {
+  WmShell::Get()->system_tray_notifier()->NotifyRefreshIMEMenu(true);
+  ASSERT_TRUE(IsVisible());
+  ASSERT_FALSE(IsTrayBackgroundActive());
+
+  ui::GestureEvent tap(0, 0, 0, base::TimeTicks(),
+                       ui::GestureEventDetails(ui::ET_GESTURE_TAP));
+  ime_menu_tray()->PerformAction(tap);
+  EXPECT_TRUE(IsTrayBackgroundActive());
+
+  ime_menu_tray()->PerformAction(tap);
+  EXPECT_FALSE(IsTrayBackgroundActive());
+
+  // If disabling the IME menu feature when the menu tray is activated, the tray
+  // element will be deactivated.
+  ime_menu_tray()->PerformAction(tap);
+  EXPECT_TRUE(IsTrayBackgroundActive());
+  WmShell::Get()->system_tray_notifier()->NotifyRefreshIMEMenu(false);
+  EXPECT_FALSE(IsVisible());
+  EXPECT_FALSE(IsTrayBackgroundActive());
+}
+
+}  // namespace ash