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// Copyright 2020 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_OZONE_PLATFORM_WAYLAND_HOST_XDG_FOREIGN_WRAPPER_H_
#define UI_OZONE_PLATFORM_WAYLAND_HOST_XDG_FOREIGN_WRAPPER_H_
#include <string>
#include "base/functional/callback.h"
#include "ui/ozone/platform/wayland/common/wayland_object.h"
#include "ui/ozone/platform/wayland/host/wayland_connection.h"
#include "ui/ozone/platform/wayland/host/wayland_window_observer.h"
namespace ui {
class WaylandConnection;
// A wrapper for xdg foreign objects. Exports surfaces that have xdg_surface
// roles and asynchronously returns handles for them. Only xdg_surface surfaces
// may be exported. Currently supports only exporting surfaces.
class XdgForeignWrapper : public wl::GlobalObjectRegistrar<XdgForeignWrapper>,
public WaylandWindowObserver {
public:
class XdgForeignWrapperInternal;
static constexpr char kInterfaceNameV1[] = "zxdg_exporter_v1";
static constexpr char kInterfaceNameV2[] = "zxdg_exporter_v2";
static void Instantiate(WaylandConnection* connection,
wl_registry* registry,
uint32_t name,
const std::string& interface,
uint32_t version);
using OnHandleExported = base::OnceCallback<void(const std::string&)>;
XdgForeignWrapper(WaylandConnection* connection,
wl::Object<zxdg_exporter_v1> exporter_v1);
XdgForeignWrapper(WaylandConnection* connection,
wl::Object<zxdg_exporter_v2> exporter_v2);
XdgForeignWrapper(const XdgForeignWrapper&) = delete;
XdgForeignWrapper& operator=(const XdgForeignWrapper&) = delete;
~XdgForeignWrapper() override;
// Exports |window|'s wl_surface and asynchronously returns a handle for that
// via the |cb|. Please note that wl_surface that has xdg_surface role can be
// exported.
void ExportSurfaceToForeign(WaylandWindow* window, OnHandleExported cb);
private:
explicit XdgForeignWrapper(WaylandConnection* connection);
// WaylandWindowObserver:
void OnWindowRemoved(WaylandWindow* window) override;
base::ScopedObservation<WaylandWindowManager, WaylandWindowObserver>
window_removal_observer_{this};
std::unique_ptr<XdgForeignWrapperInternal> impl_;
};
} // namespace ui
#endif // UI_OZONE_PLATFORM_WAYLAND_HOST_XDG_FOREIGN_WRAPPER_H_
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