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// 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/host/ash_window_tree_host.h"
#include "ash/host/ash_window_tree_host_init_params.h"
#include "ash/host/ash_window_tree_host_unified.h"
#include "ash/host/root_window_transformer.h"
#include "ash/host/transformer_helper.h"
#include "ash/ime/input_method_event_handler.h"
#include "base/command_line.h"
#include "base/trace_event/trace_event.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host_ozone.h"
#include "ui/events/event_processor.h"
#include "ui/events/null_event_targeter.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/gfx/transform.h"
#include "ui/ozone/public/input_controller.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/platform_window/platform_window.h"
namespace ash {
namespace {
class AshWindowTreeHostOzone : public AshWindowTreeHost,
public aura::WindowTreeHostOzone {
public:
explicit AshWindowTreeHostOzone(const gfx::Rect& initial_bounds);
~AshWindowTreeHostOzone() override;
private:
// AshWindowTreeHost:
void ToggleFullScreen() override;
bool ConfineCursorToRootWindow() override;
void UnConfineCursor() override;
void SetRootWindowTransformer(
scoped_ptr<RootWindowTransformer> transformer) override;
gfx::Insets GetHostInsets() const override;
aura::WindowTreeHost* AsWindowTreeHost() override;
void PrepareForShutdown() override;
void SetRootTransform(const gfx::Transform& transform) override;
gfx::Transform GetRootTransform() const override;
gfx::Transform GetInverseRootTransform() const override;
void UpdateRootWindowSize(const gfx::Size& host_size) override;
void OnCursorVisibilityChangedNative(bool show) override;
void SetBounds(const gfx::Rect& bounds) override;
void DispatchEvent(ui::Event* event) override;
// ui::internal::InputMethodDelegate:
ui::EventDispatchDetails DispatchKeyEventPostIME(
ui::KeyEvent* event) override;
// Temporarily disable the tap-to-click feature. Used on CrOS.
void SetTapToClickPaused(bool state);
TransformerHelper transformer_helper_;
DISALLOW_COPY_AND_ASSIGN(AshWindowTreeHostOzone);
};
AshWindowTreeHostOzone::AshWindowTreeHostOzone(const gfx::Rect& initial_bounds)
: aura::WindowTreeHostOzone(initial_bounds), transformer_helper_(this) {
transformer_helper_.Init();
}
AshWindowTreeHostOzone::~AshWindowTreeHostOzone() {
}
void AshWindowTreeHostOzone::ToggleFullScreen() {
NOTIMPLEMENTED();
}
bool AshWindowTreeHostOzone::ConfineCursorToRootWindow() {
gfx::Rect confined_bounds(GetBounds().size());
confined_bounds.Inset(transformer_helper_.GetHostInsets());
platform_window()->ConfineCursorToBounds(confined_bounds);
return true;
}
void AshWindowTreeHostOzone::UnConfineCursor() {
NOTIMPLEMENTED();
}
void AshWindowTreeHostOzone::SetRootWindowTransformer(
scoped_ptr<RootWindowTransformer> transformer) {
transformer_helper_.SetRootWindowTransformer(transformer.Pass());
ConfineCursorToRootWindow();
}
gfx::Insets AshWindowTreeHostOzone::GetHostInsets() const {
return transformer_helper_.GetHostInsets();
}
aura::WindowTreeHost* AshWindowTreeHostOzone::AsWindowTreeHost() {
return this;
}
void AshWindowTreeHostOzone::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(
scoped_ptr<ui::EventTargeter>(new ui::NullEventTargeter));
}
void AshWindowTreeHostOzone::SetRootTransform(const gfx::Transform& transform) {
transformer_helper_.SetTransform(transform);
}
gfx::Transform AshWindowTreeHostOzone::GetRootTransform() const {
return transformer_helper_.GetTransform();
}
gfx::Transform AshWindowTreeHostOzone::GetInverseRootTransform() const {
return transformer_helper_.GetInverseTransform();
}
void AshWindowTreeHostOzone::UpdateRootWindowSize(const gfx::Size& host_size) {
transformer_helper_.UpdateWindowSize(host_size);
}
void AshWindowTreeHostOzone::OnCursorVisibilityChangedNative(bool show) {
SetTapToClickPaused(!show);
}
void AshWindowTreeHostOzone::SetBounds(const gfx::Rect& bounds) {
WindowTreeHostOzone::SetBounds(bounds);
ConfineCursorToRootWindow();
}
void AshWindowTreeHostOzone::DispatchEvent(ui::Event* event) {
TRACE_EVENT0("input", "AshWindowTreeHostOzone::DispatchEvent");
if (event->IsLocatedEvent())
TranslateLocatedEvent(static_cast<ui::LocatedEvent*>(event));
SendEventToProcessor(event);
}
ui::EventDispatchDetails AshWindowTreeHostOzone::DispatchKeyEventPostIME(
ui::KeyEvent* event) {
input_method_handler()->SetPostIME(true);
ui::EventDispatchDetails details =
event_processor()->OnEventFromSource(event);
if (!details.dispatcher_destroyed)
input_method_handler()->SetPostIME(false);
return details;
}
void AshWindowTreeHostOzone::SetTapToClickPaused(bool state) {
#if defined(OS_CHROMEOS)
DCHECK(ui::OzonePlatform::GetInstance()->GetInputController());
// Temporarily pause tap-to-click when the cursor is hidden.
ui::OzonePlatform::GetInstance()->GetInputController()->SetTapToClickPaused(
state);
#endif
}
} // namespace
AshWindowTreeHost* AshWindowTreeHost::Create(
const AshWindowTreeHostInitParams& init_params) {
if (init_params.offscreen)
return new AshWindowTreeHostUnified(init_params.initial_bounds);
return new AshWindowTreeHostOzone(init_params.initial_bounds);
}
} // namespace ash
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