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// Copyright 2016 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/host/ash_window_tree_host_platform.h"
#include "base/memory/raw_ptr.h"
#include <utility>
#include "ash/host/ash_window_tree_host_delegate.h"
#include "ash/host/root_window_transformer.h"
#include "ash/host/transformer_helper.h"
#include "base/feature_list.h"
#include "base/trace_event/trace_event.h"
#include "ui/aura/null_window_targeter.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host_platform.h"
#include "ui/events/event_sink.h"
#include "ui/events/null_event_targeter.h"
#include "ui/events/ozone/chromeos/cursor_controller.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/gfx/geometry/transform.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/platform_window/platform_window.h"
#include "ui/platform_window/platform_window_init_properties.h"
namespace ash {
class ScopedEnableUnadjustedMouseEventsOzone
: public aura::ScopedEnableUnadjustedMouseEvents {
public:
explicit ScopedEnableUnadjustedMouseEventsOzone(
ui::InputController* input_controller)
: input_controller_(input_controller) {
input_controller_->SuspendMouseAcceleration();
}
~ScopedEnableUnadjustedMouseEventsOzone() override {
input_controller_->EndMouseAccelerationSuspension();
}
private:
raw_ptr<ui::InputController> input_controller_;
};
AshWindowTreeHostPlatform::AshWindowTreeHostPlatform(
ui::PlatformWindowInitProperties properties,
AshWindowTreeHostDelegate* delegate)
: aura::WindowTreeHostPlatform(std::move(properties),
std::make_unique<aura::Window>(nullptr)),
delegate_(delegate),
transformer_helper_(this),
input_controller_(
ui::OzonePlatform::GetInstance()->GetInputController()) {
DCHECK(delegate_);
CommonInit();
}
AshWindowTreeHostPlatform::AshWindowTreeHostPlatform(
std::unique_ptr<ui::PlatformWindow> platform_window,
AshWindowTreeHostDelegate* delegate,
size_t compositor_memory_limit_mb)
: aura::WindowTreeHostPlatform(std::make_unique<aura::Window>(nullptr)),
delegate_(delegate),
transformer_helper_(this) {
DCHECK(delegate_);
CreateCompositor(/* force_software_compositor */ false,
/* use_external_begin_frame_control */ false,
/* enable_compositing_based_throttling */ false,
compositor_memory_limit_mb);
SetPlatformWindow(std::move(platform_window));
CommonInit();
}
AshWindowTreeHostPlatform::~AshWindowTreeHostPlatform() = default;
void AshWindowTreeHostPlatform::ConfineCursorToRootWindow() {
if (!allow_confine_cursor())
return;
gfx::Rect confined_bounds(GetBoundsInPixels().size());
confined_bounds.Inset(transformer_helper_.GetHostInsets());
last_cursor_confine_bounds_in_pixels_ = confined_bounds;
platform_window()->ConfineCursorToBounds(confined_bounds);
}
void AshWindowTreeHostPlatform::ConfineCursorToBoundsInRoot(
const gfx::Rect& bounds_in_root) {
if (!allow_confine_cursor())
return;
last_cursor_confine_bounds_in_pixels_ =
GetRootTransform().MapRect(bounds_in_root);
platform_window()->ConfineCursorToBounds(
last_cursor_confine_bounds_in_pixels_);
}
gfx::Rect AshWindowTreeHostPlatform::GetLastCursorConfineBoundsInPixels()
const {
return last_cursor_confine_bounds_in_pixels_;
}
void AshWindowTreeHostPlatform::UpdateCursorConfig() {
const display::Display* display = delegate_->GetDisplayById(GetDisplayId());
if (!display) {
LOG(ERROR)
<< "While updating cursor config, could not find display with id="
<< GetDisplayId();
return;
}
// Scale all motion on High-DPI displays.
float scale = display->device_scale_factor();
if (!display->IsInternal())
scale *= 1.2;
ui::CursorController::GetInstance()->SetCursorConfigForWindow(
GetAcceleratedWidget(), display->panel_rotation(), scale);
}
void AshWindowTreeHostPlatform::ClearCursorConfig() {
ui::CursorController::GetInstance()->ClearCursorConfigForWindow(
GetAcceleratedWidget());
}
void AshWindowTreeHostPlatform::UpdateRootWindowSize() {
aura::WindowTreeHostPlatform::UpdateRootWindowSize();
}
void AshWindowTreeHostPlatform::SetRootWindowTransformer(
std::unique_ptr<RootWindowTransformer> transformer) {
transformer_helper_.SetRootWindowTransformer(std::move(transformer));
ConfineCursorToRootWindow();
}
gfx::Insets AshWindowTreeHostPlatform::GetHostInsets() const {
return transformer_helper_.GetHostInsets();
}
aura::WindowTreeHost* AshWindowTreeHostPlatform::AsWindowTreeHost() {
return this;
}
void AshWindowTreeHostPlatform::PrepareForShutdown() {
// Block the root window from dispatching events because it is weird for a
// ScreenPositionClient not to be attached to the root window and for
// ui::EventHandlers to be unable to convert the event's location to screen
// coordinates.
window()->SetEventTargeter(std::make_unique<aura::NullWindowTargeter>());
// Do anything platform specific necessary before shutdown (eg. stop
// listening for configuration XEvents).
platform_window()->PrepareForShutdown();
}
void AshWindowTreeHostPlatform::SetRootTransform(
const gfx::Transform& transform) {
transformer_helper_.SetTransform(transform);
}
gfx::Transform AshWindowTreeHostPlatform::GetRootTransform() const {
return transformer_helper_.GetTransform();
}
gfx::Transform AshWindowTreeHostPlatform::GetInverseRootTransform() const {
return transformer_helper_.GetInverseTransform();
}
gfx::Rect
AshWindowTreeHostPlatform::GetTransformedRootWindowBoundsFromPixelSize(
const gfx::Size& host_size_in_pixels) const {
return transformer_helper_.GetTransformedWindowBounds(host_size_in_pixels);
}
void AshWindowTreeHostPlatform::OnCursorVisibilityChangedNative(bool show) {
SetTapToClickPaused(!show);
}
void AshWindowTreeHostPlatform::SetBoundsInPixels(const gfx::Rect& bounds) {
WindowTreeHostPlatform::SetBoundsInPixels(bounds);
ConfineCursorToRootWindow();
}
void AshWindowTreeHostPlatform::CommonInit() {
transformer_helper_.Init();
}
void AshWindowTreeHostPlatform::SetTapToClickPaused(bool state) {
// Temporarily pause tap-to-click when the cursor is hidden.
ui::OzonePlatform::GetInstance()->GetInputController()->SetTapToClickPaused(
state);
}
std::unique_ptr<aura::ScopedEnableUnadjustedMouseEvents>
AshWindowTreeHostPlatform::RequestUnadjustedMovement() {
return std::make_unique<ScopedEnableUnadjustedMouseEventsOzone>(
input_controller_);
}
void AshWindowTreeHostPlatform::OnDamageRect(const gfx::Rect& damage_rect) {
if (ignore_platform_damage_rect_for_test_) {
return;
}
return aura::WindowTreeHostPlatform::OnDamageRect(damage_rect);
}
void AshWindowTreeHostPlatform::DispatchEvent(ui::Event* event) {
TRACE_EVENT0("input", "AshWindowTreeHostPlatform::DispatchEvent");
if (event->IsLocatedEvent())
TranslateLocatedEvent(event->AsLocatedEvent());
return aura::WindowTreeHostPlatform::DispatchEvent(event);
}
} // namespace ash
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