Add ImeMenuTray element.

ash/system/chromeos/ime_menu/ime_menu_tray_unittest.cc

Index: ash/system/chromeos/ime_menu/ime_menu_tray_unittest.cc
diff --git a/ash/system/chromeos/ime_menu/ime_menu_tray_unittest.cc b/ash/system/chromeos/ime_menu/ime_menu_tray_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4a67a0ffe1f553400e6b2e65c77835ad801617e4
--- /dev/null
+++ b/ash/system/chromeos/ime_menu/ime_menu_tray_unittest.cc
@@ -0,0 +1,118 @@
+// 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/system/chromeos/ime_menu/ime_menu_tray.h"
+
+#include "ash/common/wm/window_state.h"
+#include "ash/shell.h"
+#include "ash/system/status_area_widget.h"
+#include "ash/system/tray/system_tray.h"
+#include "ash/system/tray/system_tray_notifier.h"
+#include "ash/test/ash_test_base.h"
+#include "ash/test/status_area_widget_test_helper.h"
+#include "ash/test/test_system_tray_delegate.h"
+#include "ash/wm/window_state_aura.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/time/time.h"
+#include "ui/events/event.h"
+
+namespace ash {
+
+namespace {
+
+ImeMenuTray* GetTray() {
+  return StatusAreaWidgetTestHelper::GetStatusAreaWidget()->ime_menu_tray();
+}
+
+}  // namespace
+
+class ImeMenuTrayTest : public test::AshTestBase {
+ public:
+  ImeMenuTrayTest() {}
+  ~ImeMenuTrayTest() override {}
+
+ protected:
+  // Returns the label text of the tray.
+  base::string16 GetTrayText() { return GetTray()->GetLabelTextForTesting(); }
+
+  // Returns true if the background color of the tray is active.
+  bool IsTrayBackgroundActive() {
+    return GetTray()->draw_background_as_active();
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ImeMenuTrayTest);
+};
+
+TEST_F(ImeMenuTrayTest, ImeMenuTrayVisibility) {
+  ASSERT_TRUE(GetTray());
+  ASSERT_FALSE(GetTray()->visible());
+
+  Shell::GetInstance()->system_tray_notifier()->NotifyRefreshIMEMenu(true);
+  ASSERT_TRUE(GetTray()->visible());
+
+  Shell::GetInstance()->system_tray_notifier()->NotifyRefreshIMEMenu(false);
+  ASSERT_FALSE(GetTray()->visible());
+}
+
+TEST_F(ImeMenuTrayTest, TrayLabelTest) {
+  ASSERT_TRUE(GetTray());
+  ASSERT_TRUE(GetSystemTrayDelegate());
+
+  std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
+  wm::WindowState* window_state = wm::GetWindowState(window.get());
+  GetTray()->SetWindowState(window_state);
+
+  // Changes the input method to "ime1".
+  IMEInfo info1;
+  info1.id = "ime1";
+  info1.name = base::UTF8ToUTF16("English");
+  info1.medium_name = base::UTF8ToUTF16("English");
+  info1.short_name = base::UTF8ToUTF16("US");
+  info1.third_party = false;
+  info1.selected = true;
+  GetSystemTrayDelegate()->SetCurrentIME(info1);
+  Shell::GetInstance()->system_tray_notifier()->NotifyRefreshIME();
+  ASSERT_EQ(info1.short_name, GetTrayText());
+
+  // Changes the input method to a third-party IME extension.
+  IMEInfo info2;
+  info2.id = "ime2";
+  info2.name = base::UTF8ToUTF16("English UK");
+  info2.medium_name = base::UTF8ToUTF16("English UK");
+  info2.short_name = base::UTF8ToUTF16("UK");
+  info2.third_party = true;
+  info2.selected = true;
+  GetSystemTrayDelegate()->SetCurrentIME(info2);
+  Shell::GetInstance()->system_tray_notifier()->NotifyRefreshIME();
+  ASSERT_EQ(info2.short_name + base::UTF8ToUTF16("*"), GetTrayText());
+}
+
+TEST_F(ImeMenuTrayTest, PerformAction) {
+  ASSERT_TRUE(GetTray());
+  ASSERT_TRUE(GetSystemTrayDelegate());
+
+  std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
+  wm::WindowState* window_state = wm::GetWindowState(window.get());
+  window_state->Minimize();
+  ASSERT_TRUE(window_state->IsMinimized());
+
+  GetTray()->SetWindowState(window_state);
+  Shell::GetInstance()->system_tray_notifier()->NotifyRefreshIMEMenu(true);
+  ASSERT_TRUE(GetTray()->visible());
+
+  // Tabs on the tray when the window is minimized.
+  ui::GestureEvent tap(0, 0, 0, base::TimeTicks(),
+                       ui::GestureEventDetails(ui::ET_GESTURE_TAP));
+  GetTray()->PerformAction(tap);
+  ASSERT_FALSE(window_state->IsMinimized());
+  ASSERT_TRUE(IsTrayBackgroundActive());
+
+  // Tabs on the tray when the window is unminimized.
+  GetTray()->PerformAction(tap);
+  ASSERT_TRUE(window_state->IsMinimized());
+  ASSERT_FALSE(IsTrayBackgroundActive());
+}
+
+}  // namespace ash