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// Copyright (c) 2012 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/wm/window_cycle_controller.h"
#include <algorithm>
#include "ash/shell.h"
#include "ash/shell_window_ids.h"
#include "ash/test/ash_test_base.h"
#include "ash/test/test_shell_delegate.h"
#include "ash/wm/window_util.h"
#include "base/memory/scoped_ptr.h"
#include "ui/aura/test/test_windows.h"
#include "ui/aura/window.h"
#include "ui/gfx/rect.h"
namespace ash {
namespace {
using aura::test::CreateTestWindowWithId;
using aura::test::TestWindowDelegate;
using aura::Window;
class WindowCycleControllerTest : public test::AshTestBase {
public:
WindowCycleControllerTest() {}
virtual ~WindowCycleControllerTest() {}
private:
DISALLOW_COPY_AND_ASSIGN(WindowCycleControllerTest);
};
TEST_F(WindowCycleControllerTest, HandleCycleWindowBaseCases) {
WindowCycleController* controller =
Shell::GetInstance()->window_cycle_controller();
// Cycling doesn't crash if there are no windows.
std::vector<Window*> windows = Shell::GetInstance()->delegate()->
GetCycleWindowList(ShellDelegate::SOURCE_KEYBOARD);
EXPECT_TRUE(windows.empty());
controller->HandleCycleWindow(WindowCycleController::FORWARD, false);
// Create a single test window.
Window* default_container =
ash::Shell::GetInstance()->GetContainer(
internal::kShellWindowId_DefaultContainer);
scoped_ptr<Window> window0(CreateTestWindowWithId(0, default_container));
wm::ActivateWindow(window0.get());
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
// Cycling works for a single window, even though nothing changes.
controller->HandleCycleWindow(WindowCycleController::FORWARD, false);
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
}
TEST_F(WindowCycleControllerTest, HandleCycleWindow) {
WindowCycleController* controller =
Shell::GetInstance()->window_cycle_controller();
// Set up several windows to use to test cycling. Create them in reverse
// order so they are stacked 0 over 1 over 2.
Window* default_container =
Shell::GetInstance()->GetContainer(
internal::kShellWindowId_DefaultContainer);
scoped_ptr<Window> window2(CreateTestWindowWithId(2, default_container));
scoped_ptr<Window> window1(CreateTestWindowWithId(1, default_container));
scoped_ptr<Window> window0(CreateTestWindowWithId(0, default_container));
wm::ActivateWindow(window0.get());
// Window lists should return the topmost window in front.
std::vector<Window*> windows = Shell::GetInstance()->delegate()->
GetCycleWindowList(ShellDelegate::SOURCE_KEYBOARD);
ASSERT_EQ(3u, windows.size());
ASSERT_EQ(window0.get(), windows[0]);
ASSERT_EQ(window1.get(), windows[1]);
ASSERT_EQ(window2.get(), windows[2]);
// Simulate pressing and releasing Alt-tab.
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
controller->HandleCycleWindow(WindowCycleController::FORWARD, true);
controller->AltKeyReleased();
EXPECT_TRUE(wm::IsActiveWindow(window1.get()));
// Pressing and releasing Alt-tab again should cycle back to the most-
// recently-used window in the current child order.
controller->HandleCycleWindow(WindowCycleController::FORWARD, true);
controller->AltKeyReleased();
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
// Pressing Alt-tab multiple times without releasing Alt should cycle through
// all the windows and wrap around.
controller->HandleCycleWindow(WindowCycleController::FORWARD, true);
EXPECT_TRUE(controller->IsCycling());
EXPECT_TRUE(wm::IsActiveWindow(window1.get()));
controller->HandleCycleWindow(WindowCycleController::FORWARD, true);
EXPECT_TRUE(controller->IsCycling());
EXPECT_TRUE(wm::IsActiveWindow(window2.get()));
controller->HandleCycleWindow(WindowCycleController::FORWARD, true);
EXPECT_TRUE(controller->IsCycling());
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
controller->AltKeyReleased();
EXPECT_FALSE(controller->IsCycling());
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
// Reset our stacking order.
wm::ActivateWindow(window2.get());
wm::ActivateWindow(window1.get());
wm::ActivateWindow(window0.get());
// Likewise we can cycle backwards through all the windows.
controller->HandleCycleWindow(WindowCycleController::BACKWARD, true);
EXPECT_TRUE(wm::IsActiveWindow(window2.get()));
controller->HandleCycleWindow(WindowCycleController::BACKWARD, true);
EXPECT_TRUE(wm::IsActiveWindow(window1.get()));
controller->HandleCycleWindow(WindowCycleController::BACKWARD, true);
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
controller->AltKeyReleased();
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
// Passing false for is_alt_down does not start a cycle gesture.
controller->HandleCycleWindow(WindowCycleController::FORWARD, false);
EXPECT_FALSE(controller->IsCycling());
EXPECT_TRUE(wm::IsActiveWindow(window1.get()));
controller->HandleCycleWindow(WindowCycleController::FORWARD, false);
EXPECT_FALSE(controller->IsCycling());
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
// When the screen is locked, cycling window does not take effect.
Shell::GetInstance()->delegate()->LockScreen();
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
controller->HandleCycleWindow(WindowCycleController::FORWARD, false);
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
controller->HandleCycleWindow(WindowCycleController::BACKWARD, false);
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
Shell::GetInstance()->delegate()->UnlockScreen();
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
controller->HandleCycleWindow(WindowCycleController::FORWARD, false);
EXPECT_TRUE(wm::IsActiveWindow(window1.get()));
controller->HandleCycleWindow(WindowCycleController::FORWARD, false);
EXPECT_TRUE(wm::IsActiveWindow(window0.get()));
// When a modal window is active, cycling window does not take effect.
aura::Window* modal_container =
ash::Shell::GetInstance()->GetContainer(
internal::kShellWindowId_SystemModalContainer);
scoped_ptr<Window> modal_window(
CreateTestWindowWithId(-2, modal_container));
wm::ActivateWindow(modal_window.get());
EXPECT_TRUE(wm::IsActiveWindow(modal_window.get()));
controller->HandleCycleWindow(WindowCycleController::FORWARD, false);
EXPECT_TRUE(wm::IsActiveWindow(modal_window.get()));
EXPECT_FALSE(wm::IsActiveWindow(window0.get()));
EXPECT_FALSE(wm::IsActiveWindow(window1.get()));
EXPECT_FALSE(wm::IsActiveWindow(window2.get()));
controller->HandleCycleWindow(WindowCycleController::BACKWARD, false);
EXPECT_TRUE(wm::IsActiveWindow(modal_window.get()));
EXPECT_FALSE(wm::IsActiveWindow(window0.get()));
EXPECT_FALSE(wm::IsActiveWindow(window1.get()));
EXPECT_FALSE(wm::IsActiveWindow(window2.get()));
}
} // namespace
} // namespace ash
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