// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/public/cpp/window_finder.h"
#include "ash/shell.h"
#include "ash/test/ash_test_base.h"
#include "ash/wm/container_finder.h"
#include "ash/wm/overview/overview_controller.h"
#include "ash/wm/overview/overview_grid.h"
#include "ash/wm/overview/overview_item.h"
#include "ash/wm/overview/overview_session.h"
#include "ash/wm/window_state.h"
#include "base/memory/raw_ptr.h"
#include "ui/aura/test/test_window_delegate.h"
#include "ui/aura/window_observer.h"
#include "ui/aura/window_targeter.h"
#include "ui/gfx/geometry/insets.h"
namespace ash {
using WindowFinderTest = AshTestBase;
TEST_F(WindowFinderTest, RealTopmostCanBeNullptr) {
std::unique_ptr<aura::Window> window1 =
CreateTestWindow(gfx::Rect(0, 0, 100, 100));
std::set<aura::Window*> ignore;
EXPECT_EQ(window1.get(), GetTopmostWindowAtPoint(gfx::Point(10, 10), ignore));
}
TEST_F(WindowFinderTest, ToplevelCanBeNotDrawn) {
aura::test::TestWindowDelegate delegate;
auto window = std::make_unique<aura::Window>(&delegate,
aura::client::WINDOW_TYPE_POPUP);
window->Init(ui::LAYER_NOT_DRAWN);
gfx::Rect bounds(0, 0, 100, 100);
window->SetBounds(bounds);
auto* parent = GetDefaultParentForWindow(
window.get(), Shell::GetPrimaryRootWindow(), bounds);
parent->AddChild(window.get());
window->Show();
std::set<aura::Window*> ignore;
EXPECT_EQ(window.get(), GetTopmostWindowAtPoint(gfx::Point(10, 10), ignore));
}
TEST_F(WindowFinderTest, MultipleDisplays) {
UpdateDisplay("300x200,400x300");
std::unique_ptr<aura::Window> window1 =
CreateTestWindow(gfx::Rect(0, 0, 100, 100));
std::unique_ptr<aura::Window> window2 =
CreateTestWindow(gfx::Rect(300, 0, 100, 100));
ASSERT_NE(window1->GetRootWindow(), window2->GetRootWindow());
std::set<aura::Window*> ignore;
EXPECT_EQ(window1.get(), GetTopmostWindowAtPoint(gfx::Point(10, 10), ignore));
EXPECT_EQ(window2.get(),
GetTopmostWindowAtPoint(gfx::Point(310, 10), ignore));
EXPECT_EQ(nullptr, GetTopmostWindowAtPoint(gfx::Point(10, 210), ignore));
}
TEST_F(WindowFinderTest, WindowTargeterWithHitTestRects) {
std::unique_ptr<aura::Window> window1 =
CreateTestWindow(gfx::Rect(0, 0, 100, 100));
std::unique_ptr<aura::Window> window2 =
CreateTestWindow(gfx::Rect(0, 0, 100, 100));
std::set<aura::Window*> ignore;
EXPECT_EQ(window2.get(), GetTopmostWindowAtPoint(gfx::Point(10, 10), ignore));
auto targeter = std::make_unique<aura::WindowTargeter>();
targeter->SetInsets(gfx::Insets::TLBR(0, 50, 0, 0));
window2->SetEventTargeter(std::move(targeter));
EXPECT_EQ(window1.get(), GetTopmostWindowAtPoint(gfx::Point(10, 10), ignore));
EXPECT_EQ(window2.get(), GetTopmostWindowAtPoint(gfx::Point(60, 10), ignore));
}
// Tests that when overview is active, GetTopmostWindowAtPoint() will return
// the window in overview that contains the specified screen point, even though
// it might be a minimized window.
TEST_F(WindowFinderTest, TopmostWindowWithOverviewActive) {
UpdateDisplay("500x400");
std::unique_ptr<aura::Window> window1 =
CreateTestWindow(gfx::Rect(0, 0, 100, 100));
std::unique_ptr<aura::Window> window2 =
CreateTestWindow(gfx::Rect(0, 0, 100, 100));
OverviewController* overview_controller = Shell::Get()->overview_controller();
EnterOverview();
EXPECT_TRUE(overview_controller->InOverviewSession());
// Get |window1| and |window2|'s transformed bounds in overview.
OverviewGrid* grid =
overview_controller->overview_session()->GetGridWithRootWindow(
window1->GetRootWindow());
gfx::Rect bounds1 = gfx::ToEnclosedRect(
grid->GetOverviewItemContaining(window1.get())->target_bounds());
gfx::Rect bounds2 = gfx::ToEnclosedRect(
grid->GetOverviewItemContaining(window2.get())->target_bounds());
std::set<aura::Window*> ignore;
EXPECT_EQ(window1.get(),
GetTopmostWindowAtPoint(bounds1.CenterPoint(), ignore));
EXPECT_EQ(window2.get(),
GetTopmostWindowAtPoint(bounds2.CenterPoint(), ignore));
WindowState::Get(window1.get())->Minimize();
EXPECT_EQ(window1.get(),
GetTopmostWindowAtPoint(bounds1.CenterPoint(), ignore));
}
namespace {
// Defines an observer that tries to get the top-most window while the window it
// observes is being destroyed. This is to verify that the destroying window
// cannot be found and returned as the top-most one.
class WindowDestroyingObserver : public aura::WindowObserver {
public:
WindowDestroyingObserver(const gfx::Point& screen_point, aura::Window* window)
: screen_point_(screen_point), window_being_observed_(window) {
window_being_observed_->AddObserver(this);
}
aura::Window* top_most_window_while_destroying() const {
return top_most_window_while_destroying_;
}
~WindowDestroyingObserver() override { StopObserving(); }
// aura::WindowObserver:
void OnWindowDestroying(aura::Window* window) override {
StopObserving();
top_most_window_while_destroying_ =
GetTopmostWindowAtPoint(screen_point_, /*ignore=*/{});
}
private:
void StopObserving() {
if (window_being_observed_) {
window_being_observed_->RemoveObserver(this);
window_being_observed_ = nullptr;
}
}
// The point in screen coordinates at which we'll get the top-most window when
// `window_being_observed_` is destroying.
const gfx::Point screen_point_;
raw_ptr<aura::Window> window_being_observed_;
// This is the window we find as the top-most window while
// `window_being_observed_` is being destroyed.
raw_ptr<aura::Window> top_most_window_while_destroying_ = nullptr;
};
} // namespace
TEST_F(WindowFinderTest, WindowBeingDestroyedCannotBeReturned) {
std::unique_ptr<aura::Window> window =
CreateTestWindow(gfx::Rect(0, 0, 100, 100));
auto* window_ptr = window.get();
WindowDestroyingObserver observer{window->GetBoundsInScreen().CenterPoint(),
window_ptr};
window.reset();
EXPECT_NE(window_ptr, observer.top_most_window_while_destroying());
}
} // namespace ash
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