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// Copyright 2021 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_DELEGATE_H_
#define UI_LINUX_LINUX_UI_DELEGATE_H_
#include <cstdint>
#include <string>
#include "base/callback_forward.h"
#include "base/component_export.h"
namespace gfx {
using AcceleratedWidget = uint32_t;
}
namespace ui {
enum class LinuxUiBackend {
kStub,
kX11,
kWayland,
};
class COMPONENT_EXPORT(LINUX_UI) LinuxUiDelegate {
public:
static LinuxUiDelegate* GetInstance();
LinuxUiDelegate();
virtual ~LinuxUiDelegate();
virtual LinuxUiBackend GetBackend() const = 0;
// Only implemented on Wayland.
virtual bool ExportWindowHandle(
uint32_t parent_widget,
base::OnceCallback<void(const std::string&)> callback);
// Only implemented on X11.
virtual void SetTransientWindowForParent(gfx::AcceleratedWidget parent,
gfx::AcceleratedWidget transient);
// Exports a prefixed, platform-dependent (X11 or Wayland) window handle for
// an Aura window id, then calls the given callback with the handle. Returns
// true on success. |callback| may be run synchronously or asynchronously.
virtual bool ExportWindowHandle(
gfx::AcceleratedWidget window_id,
base::OnceCallback<void(std::string)> callback) = 0;
private:
static LinuxUiDelegate* instance_;
};
} // namespace ui
#endif // UI_LINUX_LINUX_UI_DELEGATE_H_
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