chromium/ui/linux/linux_ui.h

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_LINUX_LINUX_UI_H_
#define UI_LINUX_LINUX_UI_H_

#include <memory>
#include <optional>
#include <string>
#include <vector>

#include "base/command_line.h"
#include "base/component_export.h"
#include "base/containers/flat_map.h"
#include "base/observer_list.h"
#include "base/scoped_observation_traits.h"
#include "build/buildflag.h"
#include "build/chromecast_buildflags.h"
#include "printing/buildflags/buildflags.h"
#include "ui/display/types/display_config.h"

// The main entrypoint into Linux toolkit specific code. GTK/QT code should only
// be executed behind this interface.

SkColor;
// TODO(thomasanderson): Remove Profile forward declaration.
class Profile;

namespace aura {
class Window;
}

namespace base {
class TimeDelta;
}

namespace gfx {
struct FontRenderParams;
class Image;
class Size;
}  // namespace gfx

namespace printing {
class PrintingContextLinux;
class PrintDialogLinuxInterface;
}  // namespace printing

namespace ui {

class CursorThemeManagerObserver;
class DeviceScaleFactorObserver;
class Event;
class LinuxInputMethodContext;
class LinuxInputMethodContextDelegate;
class LinuxUiTheme;
class NativeTheme;
class NavButtonProvider;
class SelectFileDialog;
class SelectFilePolicy;
class TextEditCommandAuraLinux;
class WindowButtonOrderObserver;
class WindowFrameProvider;

// Adapter class with targets to render like different toolkits. Set by any
// project that wants to do linux desktop native rendering.
class COMPONENT_EXPORT(LINUX_UI) LinuxUi { … };

class COMPONENT_EXPORT(LINUX_UI) LinuxUiTheme { … };

// This is used internally by LinuxUi implementations and linux_ui_factory to
// allow converting a LinuxUi to a LinuxUiTheme.  Users should not use (and have
// no way of obtaining) an instance of this class.
class LinuxUiAndTheme : public LinuxUi, public LinuxUiTheme { … };

}  // namespace ui

namespace base {

template <>
struct ScopedObservationTraits<ui::LinuxUi, ui::CursorThemeManagerObserver> { … };

template <>
struct ScopedObservationTraits<ui::LinuxUi, ui::DeviceScaleFactorObserver> { … };

template <>
struct ScopedObservationTraits<ui::LinuxUi, ui::WindowButtonOrderObserver> { … };

}  // namespace base

#endif  // UI_LINUX_LINUX_UI_H_