ash/wm/window_state_unittest.cc - chromium/src - Git at Google

 // Copyright 2014 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/wm/window_state.h"

 #include <utility>

 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm/wm_event.h"
 #include "ash/screen_util.h"
 #include "ash/test/ash_md_test_base.h"
 #include "ash/wm/window_state_aura.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/test/test_window_delegate.h"
 #include "ui/aura/window.h"
 #include "ui/display/screen.h"

 namespace ash {
 namespace wm {
 namespace {

 class AlwaysMaximizeTestState : public WindowState::State {
  public:
   explicit AlwaysMaximizeTestState(WindowStateType initial_state_type)
       : state_type_(initial_state_type) {}
   ~AlwaysMaximizeTestState() override {}

   // WindowState::State overrides:
   void OnWMEvent(WindowState* window_state, const WMEvent* event) override {
     // We don't do anything here.
   }
   WindowStateType GetType() const override { return state_type_; }
   void AttachState(WindowState* window_state,
                    WindowState::State* previous_state) override {
     // We always maximize.
     if (state_type_ != WINDOW_STATE_TYPE_MAXIMIZED) {
       window_state->Maximize();
       state_type_ = WINDOW_STATE_TYPE_MAXIMIZED;
     }
   }
   void DetachState(WindowState* window_state) override {}

  private:
   WindowStateType state_type_;

   DISALLOW_COPY_AND_ASSIGN(AlwaysMaximizeTestState);
 };

 }  // namespace

 using WindowStateTest = test::AshMDTestBase;

 INSTANTIATE_TEST_CASE_P(
     /* prefix intentionally left blank due to only one parameterization */,
     WindowStateTest,
     testing::Values(MaterialDesignController::NON_MATERIAL,
                     MaterialDesignController::MATERIAL_NORMAL,
                     MaterialDesignController::MATERIAL_EXPERIMENTAL));

 // Test that a window gets properly snapped to the display's edges in a
 // multi monitor environment.
 TEST_P(WindowStateTest, SnapWindowBasic) {
   if (!SupportsMultipleDisplays())
     return;

   UpdateDisplay("0+0-500x400, 0+500-600x400");
   const gfx::Rect kPrimaryDisplayWorkAreaBounds =
       display::Screen::GetScreen()->GetPrimaryDisplay().work_area();
   const gfx::Rect kSecondaryDisplayWorkAreaBounds =
       ScreenUtil::GetSecondaryDisplay().work_area();

   std::unique_ptr<aura::Window> window(
       CreateTestWindowInShellWithBounds(gfx::Rect(100, 100, 100, 100)));
   WindowState* window_state = GetWindowState(window.get());
   const WMEvent snap_left(WM_EVENT_SNAP_LEFT);
   window_state->OnWMEvent(&snap_left);
   gfx::Rect expected = gfx::Rect(kPrimaryDisplayWorkAreaBounds.x(),
                                  kPrimaryDisplayWorkAreaBounds.y(),
                                  kPrimaryDisplayWorkAreaBounds.width() / 2,
                                  kPrimaryDisplayWorkAreaBounds.height());
   EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

   const WMEvent snap_right(WM_EVENT_SNAP_RIGHT);
   window_state->OnWMEvent(&snap_right);
   expected.set_x(kPrimaryDisplayWorkAreaBounds.right() - expected.width());
   EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

   // Move the window to the secondary display.
   window->SetBoundsInScreen(gfx::Rect(600, 0, 100, 100),
                             ScreenUtil::GetSecondaryDisplay());

   window_state->OnWMEvent(&snap_right);
   expected = gfx::Rect(kSecondaryDisplayWorkAreaBounds.x() +
                            kSecondaryDisplayWorkAreaBounds.width() / 2,
                        kSecondaryDisplayWorkAreaBounds.y(),
                        kSecondaryDisplayWorkAreaBounds.width() / 2,
                        kSecondaryDisplayWorkAreaBounds.height());
   EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

   window_state->OnWMEvent(&snap_left);
   expected.set_x(kSecondaryDisplayWorkAreaBounds.x());
   EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());
 }

 // Test how the minimum and maximum size specified by the aura::WindowDelegate
 // affect snapping.
 TEST_P(WindowStateTest, SnapWindowMinimumSize) {
   if (!SupportsHostWindowResize())
     return;

   UpdateDisplay("0+0-600x900");
   const gfx::Rect kWorkAreaBounds =
       display::Screen::GetScreen()->GetPrimaryDisplay().work_area();

   aura::test::TestWindowDelegate delegate;
   std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithDelegate(
       &delegate, -1, gfx::Rect(0, 100, kWorkAreaBounds.width() - 1, 100)));

   // It should be possible to snap a window with a minimum size.
   delegate.set_minimum_size(gfx::Size(kWorkAreaBounds.width() - 1, 0));
   WindowState* window_state = GetWindowState(window.get());
   EXPECT_TRUE(window_state->CanSnap());
   const WMEvent snap_right(WM_EVENT_SNAP_RIGHT);
   window_state->OnWMEvent(&snap_right);
   gfx::Rect expected =
       gfx::Rect(kWorkAreaBounds.x() + 1, kWorkAreaBounds.y(),
                 kWorkAreaBounds.width() - 1, kWorkAreaBounds.height());
   EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

   // It should not be possible to snap a window with a maximum size, or if it
   // cannot be maximized.
   delegate.set_maximum_size(gfx::Size(kWorkAreaBounds.width() - 1, 0));
   EXPECT_FALSE(window_state->CanSnap());
   delegate.set_maximum_size(gfx::Size(0, kWorkAreaBounds.height() - 1));
   EXPECT_FALSE(window_state->CanSnap());
   delegate.set_maximum_size(gfx::Size());
   window->SetProperty(aura::client::kCanMaximizeKey, false);
   EXPECT_FALSE(window_state->CanSnap());
 }

 // Test that the minimum size specified by aura::WindowDelegate gets respected.
 TEST_P(WindowStateTest, TestRespectMinimumSize) {
   if (!SupportsHostWindowResize())
     return;

   UpdateDisplay("0+0-1024x768");

   aura::test::TestWindowDelegate delegate;
   const gfx::Size minimum_size(gfx::Size(500, 300));
   delegate.set_minimum_size(minimum_size);

   std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithDelegate(
       &delegate, -1, gfx::Rect(0, 100, 100, 100)));

   // Check that the window has the correct minimum size.
   EXPECT_EQ(minimum_size.ToString(), window->bounds().size().ToString());

   // Set the size to something bigger - that should work.
   gfx::Rect bigger_bounds(700, 500, 700, 500);
   window->SetBounds(bigger_bounds);
   EXPECT_EQ(bigger_bounds.ToString(), window->bounds().ToString());

   // Set the size to something smaller - that should only resize to the smallest
   // possible size.
   gfx::Rect smaller_bounds(700, 500, 100, 100);
   window->SetBounds(smaller_bounds);
   EXPECT_EQ(minimum_size.ToString(), window->bounds().size().ToString());
 }

 // Test that the minimum window size specified by aura::WindowDelegate does not
 // exceed the screen size.
 TEST_P(WindowStateTest, TestIgnoreTooBigMinimumSize) {
   if (!SupportsHostWindowResize())
     return;

   UpdateDisplay("0+0-1024x768");
   const gfx::Size work_area_size =
       display::Screen::GetScreen()->GetPrimaryDisplay().work_area().size();
   const gfx::Size illegal_size(1280, 960);
   const gfx::Rect illegal_bounds(gfx::Point(0, 0), illegal_size);

   aura::test::TestWindowDelegate delegate;
   const gfx::Size minimum_size(illegal_size);
   delegate.set_minimum_size(minimum_size);

   // The creation should force the window to respect the screen size.
   std::unique_ptr<aura::Window> window(
       CreateTestWindowInShellWithDelegate(&delegate, -1, illegal_bounds));
   EXPECT_EQ(work_area_size.ToString(), window->bounds().size().ToString());

   // Trying to set the size to something bigger then the screen size should be
   // ignored.
   window->SetBounds(illegal_bounds);
   EXPECT_EQ(work_area_size.ToString(), window->bounds().size().ToString());

   // Maximizing the window should not allow it to go bigger than that either.
   WindowState* window_state = GetWindowState(window.get());
   window_state->Maximize();
   EXPECT_EQ(work_area_size.ToString(), window->bounds().size().ToString());
 }

 // Test that setting the bounds of a snapped window keeps its snapped.
 TEST_P(WindowStateTest, SnapWindowSetBounds) {
   if (!SupportsHostWindowResize())
     return;

   UpdateDisplay("0+0-900x600");
   const gfx::Rect kWorkAreaBounds =
       display::Screen::GetScreen()->GetPrimaryDisplay().work_area();

   std::unique_ptr<aura::Window> window(
       CreateTestWindowInShellWithBounds(gfx::Rect(100, 100, 100, 100)));
   WindowState* window_state = GetWindowState(window.get());
   const WMEvent snap_left(WM_EVENT_SNAP_LEFT);
   window_state->OnWMEvent(&snap_left);
   EXPECT_EQ(WINDOW_STATE_TYPE_LEFT_SNAPPED, window_state->GetStateType());
   gfx::Rect expected =
       gfx::Rect(kWorkAreaBounds.x(), kWorkAreaBounds.y(),
                 kWorkAreaBounds.width() / 2, kWorkAreaBounds.height());
   EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

   // Snapped windows can have any width.
   expected.set_width(500);
   window->SetBounds(gfx::Rect(10, 10, 500, 300));
   EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());
   EXPECT_EQ(WINDOW_STATE_TYPE_LEFT_SNAPPED, window_state->GetStateType());
 }

 // Test that snapping left/right preserves the restore bounds.
 TEST_P(WindowStateTest, RestoreBounds) {
   std::unique_ptr<aura::Window> window(
       CreateTestWindowInShellWithBounds(gfx::Rect(100, 100, 100, 100)));
   WindowState* window_state = GetWindowState(window.get());

   EXPECT_TRUE(window_state->IsNormalStateType());

   // 1) Start with restored window with restore bounds set.
   gfx::Rect restore_bounds = window->GetBoundsInScreen();
   restore_bounds.set_width(restore_bounds.width() + 1);
   window_state->SetRestoreBoundsInScreen(restore_bounds);
   const WMEvent snap_left(WM_EVENT_SNAP_LEFT);
   window_state->OnWMEvent(&snap_left);
   const WMEvent snap_right(WM_EVENT_SNAP_RIGHT);
   window_state->OnWMEvent(&snap_right);
   EXPECT_NE(restore_bounds.ToString(), window->GetBoundsInScreen().ToString());
   EXPECT_EQ(restore_bounds.ToString(),
             window_state->GetRestoreBoundsInScreen().ToString());
   window_state->Restore();
   EXPECT_EQ(restore_bounds.ToString(), window->GetBoundsInScreen().ToString());

   // 2) Start with restored bounds set as a result of maximizing the window.
   window_state->Maximize();
   gfx::Rect maximized_bounds = window->GetBoundsInScreen();
   EXPECT_NE(maximized_bounds.ToString(), restore_bounds.ToString());
   EXPECT_EQ(restore_bounds.ToString(),
             window_state->GetRestoreBoundsInScreen().ToString());

   window_state->OnWMEvent(&snap_left);
   EXPECT_NE(restore_bounds.ToString(), window->GetBoundsInScreen().ToString());
   EXPECT_NE(maximized_bounds.ToString(),
             window->GetBoundsInScreen().ToString());
   EXPECT_EQ(restore_bounds.ToString(),
             window_state->GetRestoreBoundsInScreen().ToString());

   window_state->Restore();
   EXPECT_EQ(restore_bounds.ToString(), window->GetBoundsInScreen().ToString());
 }

 // Test that maximizing an auto managed window, then snapping it puts the window
 // at the snapped bounds and not at the auto-managed (centered) bounds.
 TEST_P(WindowStateTest, AutoManaged) {
   std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
   WindowState* window_state = GetWindowState(window.get());
   window_state->set_window_position_managed(true);
   window->Hide();
   window->SetBounds(gfx::Rect(100, 100, 100, 100));
   window->Show();

   window_state->Maximize();
   const WMEvent snap_right(WM_EVENT_SNAP_RIGHT);
   window_state->OnWMEvent(&snap_right);

   const gfx::Rect kWorkAreaBounds =
       display::Screen::GetScreen()->GetPrimaryDisplay().work_area();
   gfx::Rect expected_snapped_bounds(
       kWorkAreaBounds.x() + kWorkAreaBounds.width() / 2, kWorkAreaBounds.y(),
       kWorkAreaBounds.width() / 2, kWorkAreaBounds.height());
   EXPECT_EQ(expected_snapped_bounds.ToString(),
             window->GetBoundsInScreen().ToString());

   // The window should still be auto managed despite being right maximized.
   EXPECT_TRUE(window_state->window_position_managed());
 }

 // Test that the replacement of a State object works as expected.
 TEST_P(WindowStateTest, SimpleStateSwap) {
   std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
   WindowState* window_state = GetWindowState(window.get());
   EXPECT_FALSE(window_state->IsMaximized());
   window_state->SetStateObject(std::unique_ptr<WindowState::State>(
       new AlwaysMaximizeTestState(window_state->GetStateType())));
   EXPECT_TRUE(window_state->IsMaximized());
 }

 // Test that the replacement of a state object, following a restore with the
 // original one restores the window to its original state.
 TEST_P(WindowStateTest, StateSwapRestore) {
   std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
   WindowState* window_state = GetWindowState(window.get());
   EXPECT_FALSE(window_state->IsMaximized());
   std::unique_ptr<WindowState::State> old(
       window_state->SetStateObject(std::unique_ptr<WindowState::State>(
           new AlwaysMaximizeTestState(window_state->GetStateType()))));
   EXPECT_TRUE(window_state->IsMaximized());
   window_state->SetStateObject(std::move(old));
   EXPECT_FALSE(window_state->IsMaximized());
 }

 // Tests that a window that had same bounds as the work area shrinks after the
 // window is maximized and then restored.
 TEST_P(WindowStateTest, RestoredWindowBoundsShrink) {
   if (!SupportsHostWindowResize())
     return;

   UpdateDisplay("0+0-600x900");
   std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
   WindowState* window_state = GetWindowState(window.get());
   EXPECT_FALSE(window_state->IsMaximized());
   gfx::Rect work_area =
       display::Screen::GetScreen()->GetPrimaryDisplay().work_area();

   window->SetBounds(work_area);
   window_state->Maximize();
   EXPECT_TRUE(window_state->IsMaximized());
   EXPECT_EQ(work_area.ToString(), window->bounds().ToString());

   window_state->Restore();
   EXPECT_FALSE(window_state->IsMaximized());
   EXPECT_NE(work_area.ToString(), window->bounds().ToString());
   EXPECT_TRUE(work_area.Contains(window->bounds()));
 }

 TEST_P(WindowStateTest, DoNotResizeMaximizedWindowInFullscreen) {
   if (!SupportsHostWindowResize())
     return;
   const int height_offset = GetMdMaximizedWindowHeightOffset();

   std::unique_ptr<aura::Window> maximized(CreateTestWindowInShellWithId(0));
   std::unique_ptr<aura::Window> fullscreen(CreateTestWindowInShellWithId(1));
   WindowState* maximized_state = GetWindowState(maximized.get());
   maximized_state->Maximize();
   ASSERT_TRUE(maximized_state->IsMaximized());
   EXPECT_EQ(gfx::Rect(0, 0, 800, 553 + height_offset).ToString(),
             maximized->GetBoundsInScreen().ToString());

   // Entering fullscreen mode will not update the maximized window's size
   // under fullscreen.
   WMEvent fullscreen_event(WM_EVENT_FULLSCREEN);
   WindowState* fullscreen_state = GetWindowState(fullscreen.get());
   fullscreen_state->OnWMEvent(&fullscreen_event);
   ASSERT_TRUE(fullscreen_state->IsFullscreen());
   ASSERT_TRUE(maximized_state->IsMaximized());
   EXPECT_EQ(gfx::Rect(0, 0, 800, 553 + height_offset).ToString(),
             maximized->GetBoundsInScreen().ToString());

   // Updating display size will update the maximum window size.
   UpdateDisplay("900x700");
   EXPECT_EQ("0,0 900x700", maximized->GetBoundsInScreen().ToString());
   fullscreen.reset();

   // Exiting fullscreen will update the maximized window to the work area.
   EXPECT_EQ(gfx::Rect(0, 0, 900, 653 + height_offset).ToString(),
             maximized->GetBoundsInScreen().ToString());
 }

 TEST_P(WindowStateTest, AllowSetBoundsInMaximized) {
   std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
   WindowState* window_state = GetWindowState(window.get());
   EXPECT_FALSE(window_state->IsMaximized());
   gfx::Rect work_area =
       display::Screen::GetScreen()->GetPrimaryDisplay().work_area();
   gfx::Rect original_bounds(50, 50, 200, 200);
   window->SetBounds(original_bounds);
   ASSERT_EQ(original_bounds, window->bounds());

   window_state->set_allow_set_bounds_in_maximized(true);
   window_state->Maximize();

   EXPECT_TRUE(window_state->IsMaximized());
   EXPECT_EQ(work_area, window->bounds());

   gfx::Rect new_bounds(10, 10, 300, 300);
   window->SetBounds(new_bounds);
   EXPECT_EQ(new_bounds, window->bounds());

   window_state->Restore();
   EXPECT_FALSE(window_state->IsMaximized());
   EXPECT_EQ(original_bounds, window->bounds());

   window_state->set_allow_set_bounds_in_maximized(false);
   window_state->Maximize();

   EXPECT_TRUE(window_state->IsMaximized());
   EXPECT_EQ(work_area, window->bounds());
   window->SetBounds(new_bounds);
   EXPECT_EQ(work_area, window->bounds());
 }

 // TODO(skuhne): Add more unit test to verify the correctness for the restore
 // operation.

 }  // namespace wm
 }  // namespace ash
	// Copyright 2014 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/wm/window_state.h"

	#include <utility>

	#include "ash/common/material_design/material_design_controller.h"
	#include "ash/common/wm/window_state.h"
	#include "ash/common/wm/wm_event.h"
	#include "ash/screen_util.h"
	#include "ash/test/ash_md_test_base.h"
	#include "ash/wm/window_state_aura.h"
	#include "ui/aura/client/aura_constants.h"
	#include "ui/aura/test/test_window_delegate.h"
	#include "ui/aura/window.h"
	#include "ui/display/screen.h"

	namespace ash {
	namespace wm {
	namespace {

	class AlwaysMaximizeTestState : public WindowState::State {
	public:
	explicit AlwaysMaximizeTestState(WindowStateType initial_state_type)
	: state_type_(initial_state_type) {}
	~AlwaysMaximizeTestState() override {}

	// WindowState::State overrides:
	void OnWMEvent(WindowState* window_state, const WMEvent* event) override {
	// We don't do anything here.
	}
	WindowStateType GetType() const override { return state_type_; }
	void AttachState(WindowState* window_state,
	WindowState::State* previous_state) override {
	// We always maximize.
	if (state_type_ != WINDOW_STATE_TYPE_MAXIMIZED) {
	window_state->Maximize();
	state_type_ = WINDOW_STATE_TYPE_MAXIMIZED;
	}
	}
	void DetachState(WindowState* window_state) override {}

	private:
	WindowStateType state_type_;

	DISALLOW_COPY_AND_ASSIGN(AlwaysMaximizeTestState);
	};

	} // namespace

	using WindowStateTest = test::AshMDTestBase;

	INSTANTIATE_TEST_CASE_P(
	/* prefix intentionally left blank due to only one parameterization */,
	WindowStateTest,
	testing::Values(MaterialDesignController::NON_MATERIAL,
	MaterialDesignController::MATERIAL_NORMAL,
	MaterialDesignController::MATERIAL_EXPERIMENTAL));

	// Test that a window gets properly snapped to the display's edges in a
	// multi monitor environment.
	TEST_P(WindowStateTest, SnapWindowBasic) {
	if (!SupportsMultipleDisplays())
	return;

	UpdateDisplay("0+0-500x400, 0+500-600x400");
	const gfx::Rect kPrimaryDisplayWorkAreaBounds =
	display::Screen::GetScreen()->GetPrimaryDisplay().work_area();
	const gfx::Rect kSecondaryDisplayWorkAreaBounds =
	ScreenUtil::GetSecondaryDisplay().work_area();

	std::unique_ptr<aura::Window> window(
	CreateTestWindowInShellWithBounds(gfx::Rect(100, 100, 100, 100)));
	WindowState* window_state = GetWindowState(window.get());
	const WMEvent snap_left(WM_EVENT_SNAP_LEFT);
	window_state->OnWMEvent(&snap_left);
	gfx::Rect expected = gfx::Rect(kPrimaryDisplayWorkAreaBounds.x(),
	kPrimaryDisplayWorkAreaBounds.y(),
	kPrimaryDisplayWorkAreaBounds.width() / 2,
	kPrimaryDisplayWorkAreaBounds.height());
	EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

	const WMEvent snap_right(WM_EVENT_SNAP_RIGHT);
	window_state->OnWMEvent(&snap_right);
	expected.set_x(kPrimaryDisplayWorkAreaBounds.right() - expected.width());
	EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

	// Move the window to the secondary display.
	window->SetBoundsInScreen(gfx::Rect(600, 0, 100, 100),
	ScreenUtil::GetSecondaryDisplay());

	window_state->OnWMEvent(&snap_right);
	expected = gfx::Rect(kSecondaryDisplayWorkAreaBounds.x() +
	kSecondaryDisplayWorkAreaBounds.width() / 2,
	kSecondaryDisplayWorkAreaBounds.y(),
	kSecondaryDisplayWorkAreaBounds.width() / 2,
	kSecondaryDisplayWorkAreaBounds.height());
	EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

	window_state->OnWMEvent(&snap_left);
	expected.set_x(kSecondaryDisplayWorkAreaBounds.x());
	EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());
	}

	// Test how the minimum and maximum size specified by the aura::WindowDelegate
	// affect snapping.
	TEST_P(WindowStateTest, SnapWindowMinimumSize) {
	if (!SupportsHostWindowResize())
	return;

	UpdateDisplay("0+0-600x900");
	const gfx::Rect kWorkAreaBounds =
	display::Screen::GetScreen()->GetPrimaryDisplay().work_area();

	aura::test::TestWindowDelegate delegate;
	std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithDelegate(
	&delegate, -1, gfx::Rect(0, 100, kWorkAreaBounds.width() - 1, 100)));

	// It should be possible to snap a window with a minimum size.
	delegate.set_minimum_size(gfx::Size(kWorkAreaBounds.width() - 1, 0));
	WindowState* window_state = GetWindowState(window.get());
	EXPECT_TRUE(window_state->CanSnap());
	const WMEvent snap_right(WM_EVENT_SNAP_RIGHT);
	window_state->OnWMEvent(&snap_right);
	gfx::Rect expected =
	gfx::Rect(kWorkAreaBounds.x() + 1, kWorkAreaBounds.y(),
	kWorkAreaBounds.width() - 1, kWorkAreaBounds.height());
	EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

	// It should not be possible to snap a window with a maximum size, or if it
	// cannot be maximized.
	delegate.set_maximum_size(gfx::Size(kWorkAreaBounds.width() - 1, 0));
	EXPECT_FALSE(window_state->CanSnap());
	delegate.set_maximum_size(gfx::Size(0, kWorkAreaBounds.height() - 1));
	EXPECT_FALSE(window_state->CanSnap());
	delegate.set_maximum_size(gfx::Size());
	window->SetProperty(aura::client::kCanMaximizeKey, false);
	EXPECT_FALSE(window_state->CanSnap());
	}

	// Test that the minimum size specified by aura::WindowDelegate gets respected.
	TEST_P(WindowStateTest, TestRespectMinimumSize) {
	if (!SupportsHostWindowResize())
	return;

	UpdateDisplay("0+0-1024x768");

	aura::test::TestWindowDelegate delegate;
	const gfx::Size minimum_size(gfx::Size(500, 300));
	delegate.set_minimum_size(minimum_size);

	std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithDelegate(
	&delegate, -1, gfx::Rect(0, 100, 100, 100)));

	// Check that the window has the correct minimum size.
	EXPECT_EQ(minimum_size.ToString(), window->bounds().size().ToString());

	// Set the size to something bigger - that should work.
	gfx::Rect bigger_bounds(700, 500, 700, 500);
	window->SetBounds(bigger_bounds);
	EXPECT_EQ(bigger_bounds.ToString(), window->bounds().ToString());

	// Set the size to something smaller - that should only resize to the smallest
	// possible size.
	gfx::Rect smaller_bounds(700, 500, 100, 100);
	window->SetBounds(smaller_bounds);
	EXPECT_EQ(minimum_size.ToString(), window->bounds().size().ToString());
	}

	// Test that the minimum window size specified by aura::WindowDelegate does not
	// exceed the screen size.
	TEST_P(WindowStateTest, TestIgnoreTooBigMinimumSize) {
	if (!SupportsHostWindowResize())
	return;

	UpdateDisplay("0+0-1024x768");
	const gfx::Size work_area_size =
	display::Screen::GetScreen()->GetPrimaryDisplay().work_area().size();
	const gfx::Size illegal_size(1280, 960);
	const gfx::Rect illegal_bounds(gfx::Point(0, 0), illegal_size);

	aura::test::TestWindowDelegate delegate;
	const gfx::Size minimum_size(illegal_size);
	delegate.set_minimum_size(minimum_size);

	// The creation should force the window to respect the screen size.
	std::unique_ptr<aura::Window> window(
	CreateTestWindowInShellWithDelegate(&delegate, -1, illegal_bounds));
	EXPECT_EQ(work_area_size.ToString(), window->bounds().size().ToString());

	// Trying to set the size to something bigger then the screen size should be
	// ignored.
	window->SetBounds(illegal_bounds);
	EXPECT_EQ(work_area_size.ToString(), window->bounds().size().ToString());

	// Maximizing the window should not allow it to go bigger than that either.
	WindowState* window_state = GetWindowState(window.get());
	window_state->Maximize();
	EXPECT_EQ(work_area_size.ToString(), window->bounds().size().ToString());
	}

	// Test that setting the bounds of a snapped window keeps its snapped.
	TEST_P(WindowStateTest, SnapWindowSetBounds) {
	if (!SupportsHostWindowResize())
	return;

	UpdateDisplay("0+0-900x600");
	const gfx::Rect kWorkAreaBounds =
	display::Screen::GetScreen()->GetPrimaryDisplay().work_area();

	std::unique_ptr<aura::Window> window(
	CreateTestWindowInShellWithBounds(gfx::Rect(100, 100, 100, 100)));
	WindowState* window_state = GetWindowState(window.get());
	const WMEvent snap_left(WM_EVENT_SNAP_LEFT);
	window_state->OnWMEvent(&snap_left);
	EXPECT_EQ(WINDOW_STATE_TYPE_LEFT_SNAPPED, window_state->GetStateType());
	gfx::Rect expected =
	gfx::Rect(kWorkAreaBounds.x(), kWorkAreaBounds.y(),
	kWorkAreaBounds.width() / 2, kWorkAreaBounds.height());
	EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());

	// Snapped windows can have any width.
	expected.set_width(500);
	window->SetBounds(gfx::Rect(10, 10, 500, 300));
	EXPECT_EQ(expected.ToString(), window->GetBoundsInScreen().ToString());
	EXPECT_EQ(WINDOW_STATE_TYPE_LEFT_SNAPPED, window_state->GetStateType());
	}

	// Test that snapping left/right preserves the restore bounds.
	TEST_P(WindowStateTest, RestoreBounds) {
	std::unique_ptr<aura::Window> window(
	CreateTestWindowInShellWithBounds(gfx::Rect(100, 100, 100, 100)));
	WindowState* window_state = GetWindowState(window.get());

	EXPECT_TRUE(window_state->IsNormalStateType());

	// 1) Start with restored window with restore bounds set.
	gfx::Rect restore_bounds = window->GetBoundsInScreen();
	restore_bounds.set_width(restore_bounds.width() + 1);
	window_state->SetRestoreBoundsInScreen(restore_bounds);
	const WMEvent snap_left(WM_EVENT_SNAP_LEFT);
	window_state->OnWMEvent(&snap_left);
	const WMEvent snap_right(WM_EVENT_SNAP_RIGHT);
	window_state->OnWMEvent(&snap_right);
	EXPECT_NE(restore_bounds.ToString(), window->GetBoundsInScreen().ToString());
	EXPECT_EQ(restore_bounds.ToString(),
	window_state->GetRestoreBoundsInScreen().ToString());
	window_state->Restore();
	EXPECT_EQ(restore_bounds.ToString(), window->GetBoundsInScreen().ToString());

	// 2) Start with restored bounds set as a result of maximizing the window.
	window_state->Maximize();
	gfx::Rect maximized_bounds = window->GetBoundsInScreen();
	EXPECT_NE(maximized_bounds.ToString(), restore_bounds.ToString());
	EXPECT_EQ(restore_bounds.ToString(),
	window_state->GetRestoreBoundsInScreen().ToString());

	window_state->OnWMEvent(&snap_left);
	EXPECT_NE(restore_bounds.ToString(), window->GetBoundsInScreen().ToString());
	EXPECT_NE(maximized_bounds.ToString(),
	window->GetBoundsInScreen().ToString());
	EXPECT_EQ(restore_bounds.ToString(),
	window_state->GetRestoreBoundsInScreen().ToString());

	window_state->Restore();
	EXPECT_EQ(restore_bounds.ToString(), window->GetBoundsInScreen().ToString());
	}

	// Test that maximizing an auto managed window, then snapping it puts the window
	// at the snapped bounds and not at the auto-managed (centered) bounds.
	TEST_P(WindowStateTest, AutoManaged) {
	std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
	WindowState* window_state = GetWindowState(window.get());
	window_state->set_window_position_managed(true);
	window->Hide();
	window->SetBounds(gfx::Rect(100, 100, 100, 100));
	window->Show();

	window_state->Maximize();
	const WMEvent snap_right(WM_EVENT_SNAP_RIGHT);
	window_state->OnWMEvent(&snap_right);

	const gfx::Rect kWorkAreaBounds =
	display::Screen::GetScreen()->GetPrimaryDisplay().work_area();
	gfx::Rect expected_snapped_bounds(
	kWorkAreaBounds.x() + kWorkAreaBounds.width() / 2, kWorkAreaBounds.y(),
	kWorkAreaBounds.width() / 2, kWorkAreaBounds.height());
	EXPECT_EQ(expected_snapped_bounds.ToString(),
	window->GetBoundsInScreen().ToString());

	// The window should still be auto managed despite being right maximized.
	EXPECT_TRUE(window_state->window_position_managed());
	}

	// Test that the replacement of a State object works as expected.
	TEST_P(WindowStateTest, SimpleStateSwap) {
	std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
	WindowState* window_state = GetWindowState(window.get());
	EXPECT_FALSE(window_state->IsMaximized());
	window_state->SetStateObject(std::unique_ptr<WindowState::State>(
	new AlwaysMaximizeTestState(window_state->GetStateType())));
	EXPECT_TRUE(window_state->IsMaximized());
	}

	// Test that the replacement of a state object, following a restore with the
	// original one restores the window to its original state.
	TEST_P(WindowStateTest, StateSwapRestore) {
	std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
	WindowState* window_state = GetWindowState(window.get());
	EXPECT_FALSE(window_state->IsMaximized());
	std::unique_ptr<WindowState::State> old(
	window_state->SetStateObject(std::unique_ptr<WindowState::State>(
	new AlwaysMaximizeTestState(window_state->GetStateType()))));
	EXPECT_TRUE(window_state->IsMaximized());
	window_state->SetStateObject(std::move(old));
	EXPECT_FALSE(window_state->IsMaximized());
	}

	// Tests that a window that had same bounds as the work area shrinks after the
	// window is maximized and then restored.
	TEST_P(WindowStateTest, RestoredWindowBoundsShrink) {
	if (!SupportsHostWindowResize())
	return;

	UpdateDisplay("0+0-600x900");
	std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
	WindowState* window_state = GetWindowState(window.get());
	EXPECT_FALSE(window_state->IsMaximized());
	gfx::Rect work_area =
	display::Screen::GetScreen()->GetPrimaryDisplay().work_area();

	window->SetBounds(work_area);
	window_state->Maximize();
	EXPECT_TRUE(window_state->IsMaximized());
	EXPECT_EQ(work_area.ToString(), window->bounds().ToString());

	window_state->Restore();
	EXPECT_FALSE(window_state->IsMaximized());
	EXPECT_NE(work_area.ToString(), window->bounds().ToString());
	EXPECT_TRUE(work_area.Contains(window->bounds()));
	}

	TEST_P(WindowStateTest, DoNotResizeMaximizedWindowInFullscreen) {
	if (!SupportsHostWindowResize())
	return;
	const int height_offset = GetMdMaximizedWindowHeightOffset();

	std::unique_ptr<aura::Window> maximized(CreateTestWindowInShellWithId(0));
	std::unique_ptr<aura::Window> fullscreen(CreateTestWindowInShellWithId(1));
	WindowState* maximized_state = GetWindowState(maximized.get());
	maximized_state->Maximize();
	ASSERT_TRUE(maximized_state->IsMaximized());
	EXPECT_EQ(gfx::Rect(0, 0, 800, 553 + height_offset).ToString(),
	maximized->GetBoundsInScreen().ToString());

	// Entering fullscreen mode will not update the maximized window's size
	// under fullscreen.
	WMEvent fullscreen_event(WM_EVENT_FULLSCREEN);
	WindowState* fullscreen_state = GetWindowState(fullscreen.get());
	fullscreen_state->OnWMEvent(&fullscreen_event);
	ASSERT_TRUE(fullscreen_state->IsFullscreen());
	ASSERT_TRUE(maximized_state->IsMaximized());
	EXPECT_EQ(gfx::Rect(0, 0, 800, 553 + height_offset).ToString(),
	maximized->GetBoundsInScreen().ToString());

	// Updating display size will update the maximum window size.
	UpdateDisplay("900x700");
	EXPECT_EQ("0,0 900x700", maximized->GetBoundsInScreen().ToString());
	fullscreen.reset();

	// Exiting fullscreen will update the maximized window to the work area.
	EXPECT_EQ(gfx::Rect(0, 0, 900, 653 + height_offset).ToString(),
	maximized->GetBoundsInScreen().ToString());
	}

	TEST_P(WindowStateTest, AllowSetBoundsInMaximized) {
	std::unique_ptr<aura::Window> window(CreateTestWindowInShellWithId(0));
	WindowState* window_state = GetWindowState(window.get());
	EXPECT_FALSE(window_state->IsMaximized());
	gfx::Rect work_area =
	display::Screen::GetScreen()->GetPrimaryDisplay().work_area();
	gfx::Rect original_bounds(50, 50, 200, 200);
	window->SetBounds(original_bounds);
	ASSERT_EQ(original_bounds, window->bounds());

	window_state->set_allow_set_bounds_in_maximized(true);
	window_state->Maximize();

	EXPECT_TRUE(window_state->IsMaximized());
	EXPECT_EQ(work_area, window->bounds());

	gfx::Rect new_bounds(10, 10, 300, 300);
	window->SetBounds(new_bounds);
	EXPECT_EQ(new_bounds, window->bounds());

	window_state->Restore();
	EXPECT_FALSE(window_state->IsMaximized());
	EXPECT_EQ(original_bounds, window->bounds());

	window_state->set_allow_set_bounds_in_maximized(false);
	window_state->Maximize();

	EXPECT_TRUE(window_state->IsMaximized());
	EXPECT_EQ(work_area, window->bounds());
	window->SetBounds(new_bounds);
	EXPECT_EQ(work_area, window->bounds());
	}

	// TODO(skuhne): Add more unit test to verify the correctness for the restore
	// operation.

	} // namespace wm
	} // namespace ash