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// Copyright (c) 2013 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 "ui/aura/window_targeter.h"
#include "ui/aura/scoped_window_targeter.h"
#include "ui/aura/test/aura_test_base.h"
#include "ui/aura/test/test_window_delegate.h"
#include "ui/aura/window.h"
#include "ui/events/event_utils.h"
#include "ui/events/test/test_event_handler.h"
namespace aura {
// Always returns the same window.
class StaticWindowTargeter : public ui::EventTargeter {
public:
explicit StaticWindowTargeter(aura::Window* window)
: window_(window) {}
~StaticWindowTargeter() override {}
private:
// ui::EventTargeter:
ui::EventTarget* FindTargetForLocatedEvent(ui::EventTarget* root,
ui::LocatedEvent* event) override {
return window_;
}
Window* window_;
DISALLOW_COPY_AND_ASSIGN(StaticWindowTargeter);
};
class WindowTargeterTest : public test::AuraTestBase {
public:
WindowTargeterTest() {}
~WindowTargeterTest() override {}
Window* root_window() { return AuraTestBase::root_window(); }
};
gfx::RectF GetEffectiveVisibleBoundsInRootWindow(Window* window) {
gfx::RectF bounds = gfx::Rect(window->bounds().size());
Window* root = window->GetRootWindow();
CHECK(window->layer());
CHECK(root->layer());
gfx::Transform transform;
if (!window->layer()->GetTargetTransformRelativeTo(root->layer(), &transform))
return gfx::RectF();
transform.TransformRect(&bounds);
return bounds;
}
TEST_F(WindowTargeterTest, Basic) {
test::TestWindowDelegate delegate;
scoped_ptr<Window> window(CreateNormalWindow(1, root_window(), &delegate));
Window* one = CreateNormalWindow(2, window.get(), &delegate);
Window* two = CreateNormalWindow(3, window.get(), &delegate);
window->SetBounds(gfx::Rect(0, 0, 100, 100));
one->SetBounds(gfx::Rect(0, 0, 500, 100));
two->SetBounds(gfx::Rect(501, 0, 500, 1000));
root_window()->Show();
ui::test::TestEventHandler handler;
one->AddPreTargetHandler(&handler);
ui::MouseEvent press(ui::ET_MOUSE_PRESSED, gfx::Point(20, 20),
gfx::Point(20, 20), ui::EventTimeForNow(), ui::EF_NONE,
ui::EF_NONE);
DispatchEventUsingWindowDispatcher(&press);
EXPECT_EQ(1, handler.num_mouse_events());
handler.Reset();
DispatchEventUsingWindowDispatcher(&press);
EXPECT_EQ(1, handler.num_mouse_events());
one->RemovePreTargetHandler(&handler);
}
TEST_F(WindowTargeterTest, ScopedWindowTargeter) {
test::TestWindowDelegate delegate;
scoped_ptr<Window> window(CreateNormalWindow(1, root_window(), &delegate));
Window* child = CreateNormalWindow(2, window.get(), &delegate);
window->SetBounds(gfx::Rect(30, 30, 100, 100));
child->SetBounds(gfx::Rect(20, 20, 50, 50));
root_window()->Show();
ui::EventTarget* root = root_window();
ui::EventTargeter* targeter = root->GetEventTargeter();
gfx::Point event_location(60, 60);
{
ui::MouseEvent mouse(ui::ET_MOUSE_MOVED, event_location, event_location,
ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE);
EXPECT_EQ(child, targeter->FindTargetForEvent(root, &mouse));
}
// Install a targeter on |window| so that the events never reach the child.
scoped_ptr<ScopedWindowTargeter> scoped_targeter(
new ScopedWindowTargeter(window.get(), scoped_ptr<ui::EventTargeter>(
new StaticWindowTargeter(window.get()))));
{
ui::MouseEvent mouse(ui::ET_MOUSE_MOVED, event_location, event_location,
ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE);
EXPECT_EQ(window.get(), targeter->FindTargetForEvent(root, &mouse));
}
scoped_targeter.reset();
{
ui::MouseEvent mouse(ui::ET_MOUSE_MOVED, event_location, event_location,
ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE);
EXPECT_EQ(child, targeter->FindTargetForEvent(root, &mouse));
}
}
// Test that ScopedWindowTargeter does not crash if the window for which it
// replaces the targeter gets destroyed before it does.
TEST_F(WindowTargeterTest, ScopedWindowTargeterWindowDestroyed) {
test::TestWindowDelegate delegate;
scoped_ptr<Window> window(CreateNormalWindow(1, root_window(), &delegate));
scoped_ptr<ScopedWindowTargeter> scoped_targeter(
new ScopedWindowTargeter(window.get(), scoped_ptr<ui::EventTargeter>(
new StaticWindowTargeter(window.get()))));
window.reset();
scoped_targeter.reset();
// We did not crash!
}
TEST_F(WindowTargeterTest, TargetTransformedWindow) {
root_window()->Show();
test::TestWindowDelegate delegate;
scoped_ptr<Window> window(CreateNormalWindow(2, root_window(), &delegate));
const gfx::Rect window_bounds(100, 20, 400, 80);
window->SetBounds(window_bounds);
ui::EventTarget* root_target = root_window();
ui::EventTargeter* targeter = root_target->GetEventTargeter();
gfx::Point event_location(490, 50);
{
ui::MouseEvent mouse(ui::ET_MOUSE_MOVED, event_location, event_location,
ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE);
EXPECT_EQ(window.get(), targeter->FindTargetForEvent(root_target, &mouse));
}
// Scale |window| by 50%. This should move it away from underneath
// |event_location|, so an event in that location will not be targeted to it.
gfx::Transform transform;
transform.Scale(0.5, 0.5);
window->SetTransform(transform);
EXPECT_EQ(gfx::RectF(100, 20, 200, 40).ToString(),
GetEffectiveVisibleBoundsInRootWindow(window.get()).ToString());
{
ui::MouseEvent mouse(ui::ET_MOUSE_MOVED, event_location, event_location,
ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE);
EXPECT_EQ(root_window(), targeter->FindTargetForEvent(root_target, &mouse));
}
transform = gfx::Transform();
transform.Translate(200, 10);
transform.Scale(0.5, 0.5);
window->SetTransform(transform);
EXPECT_EQ(gfx::RectF(300, 30, 200, 40).ToString(),
GetEffectiveVisibleBoundsInRootWindow(window.get()).ToString());
{
ui::MouseEvent mouse(ui::ET_MOUSE_MOVED, event_location, event_location,
ui::EventTimeForNow(), ui::EF_NONE, ui::EF_NONE);
EXPECT_EQ(window.get(), targeter->FindTargetForEvent(root_target, &mouse));
}
}
} // namespace aura
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