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// Copyright 2015 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.
#ifndef UI_AURA_WINDOW_TREE_HOST_PLATFORM_H_
#define UI_AURA_WINDOW_TREE_HOST_PLATFORM_H_
#include <memory>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "ui/aura/aura_export.h"
#include "ui/aura/client/window_types.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/platform_window/platform_window_delegate.h"
namespace ui {
enum class DomCode;
class PlatformWindowBase;
class KeyboardHook;
struct PlatformWindowInitProperties;
} // namespace ui
namespace aura {
// The unified WindowTreeHost implementation for platforms
// that implement PlatformWindow.
class AURA_EXPORT WindowTreeHostPlatform : public WindowTreeHost,
public ui::PlatformWindowDelegate {
public:
// See Compositor() for details on |trace_environment_name|.
explicit WindowTreeHostPlatform(
ui::PlatformWindowInitProperties properties,
std::unique_ptr<Window> = nullptr,
const char* trace_environment_name = nullptr,
bool use_external_begin_frame_control = false);
~WindowTreeHostPlatform() override;
// WindowTreeHost:
ui::EventSource* GetEventSource() override;
gfx::AcceleratedWidget GetAcceleratedWidget() override;
void ShowImpl() override;
void HideImpl() override;
gfx::Rect GetBoundsInPixels() const override;
void SetBoundsInPixels(const gfx::Rect& bounds) override;
gfx::Point GetLocationOnScreenInPixels() const override;
void SetCapture() override;
void ReleaseCapture() override;
void SetCursorNative(gfx::NativeCursor cursor) override;
void MoveCursorToScreenLocationInPixels(
const gfx::Point& location_in_pixels) override;
void OnCursorVisibilityChangedNative(bool show) override;
protected:
// NOTE: this does not call CreateCompositor(); subclasses must call
// CreateCompositor() at the appropriate time.
explicit WindowTreeHostPlatform(std::unique_ptr<Window> window = nullptr);
// Creates a ui::PlatformWindow appropriate for the current platform and
// installs it at as the PlatformWindow for this WindowTreeHostPlatform.
void CreateAndSetPlatformWindow(ui::PlatformWindowInitProperties properties);
void SetPlatformWindow(std::unique_ptr<ui::PlatformWindowBase> window);
ui::PlatformWindowBase* platform_window() { return platform_window_.get(); }
const ui::PlatformWindowBase* platform_window() const {
return platform_window_.get();
}
// ui::PlatformWindowDelegate:
void OnBoundsChanged(const gfx::Rect& new_bounds) override;
void OnDamageRect(const gfx::Rect& damaged_region) override;
void DispatchEvent(ui::Event* event) override;
void OnCloseRequest() override;
void OnClosed() override;
void OnWindowStateChanged(ui::PlatformWindowState new_state) override;
void OnLostCapture() override;
void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) override;
void OnAcceleratedWidgetDestroyed() override;
void OnActivationChanged(bool active) override;
void OnMouseEnter() override;
// Overridden from aura::WindowTreeHost:
bool CaptureSystemKeyEventsImpl(
base::Optional<base::flat_set<ui::DomCode>> dom_codes) override;
void ReleaseSystemKeyEventCapture() override;
bool IsKeyLocked(ui::DomCode dom_code) override;
base::flat_map<std::string, std::string> GetKeyboardLayoutMap() override;
// This function is only for test purpose.
gfx::NativeCursor* GetCursorNative() { return &current_cursor_; }
private:
gfx::AcceleratedWidget widget_;
std::unique_ptr<ui::PlatformWindowBase> platform_window_;
gfx::NativeCursor current_cursor_;
gfx::Rect bounds_in_pixels_;
std::unique_ptr<ui::KeyboardHook> keyboard_hook_;
gfx::Size pending_size_;
// Tracks how nested OnBoundsChanged() is. That is, on entering
// OnBoundsChanged() this is incremented and on leaving OnBoundsChanged() this
// is decremented.
int on_bounds_changed_recursion_depth_ = 0;
DISALLOW_COPY_AND_ASSIGN(WindowTreeHostPlatform);
};
} // namespace aura
#endif // UI_AURA_WINDOW_TREE_HOST_PLATFORM_H_