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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_EXO_WAYLAND_WAYLAND_DISPLAY_OUTPUT_H_
#define COMPONENTS_EXO_WAYLAND_WAYLAND_DISPLAY_OUTPUT_H_
#include <cstdint>
#include "base/containers/flat_map.h"
#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
struct wl_client;
struct wl_global;
struct wl_resource;
namespace exo {
namespace wayland {
// Class that represents a wayland output. Tied to a specific display ID and
// associated with a global, and wl_outputs created by clients. This object
// will self destruct upon the display removal after delays up to 12 seconds
// (3 seconds x (1 initial delay + 3 retries)) to give time for clients to
// release the output they created, except for the shutdown scenario where
// they're removed immediately.
class WaylandDisplayOutput {
public:
explicit WaylandDisplayOutput(int64_t display_id);
WaylandDisplayOutput(const WaylandDisplayOutput&) = delete;
WaylandDisplayOutput& operator=(const WaylandDisplayOutput&) = delete;
~WaylandDisplayOutput();
// Delay interval between delete attempts.
static constexpr base::TimeDelta kDeleteTaskDelay = base::Seconds(3);
// Number of times to retry deletion.
static constexpr int kDeleteRetries = 3;
int64_t id() const;
void set_global(wl_global* global);
// Register/Unregister output resources, which will be used to
// notify surface when enter/leave the output.
void UnregisterOutput(wl_resource* output_resource);
void RegisterOutput(wl_resource* output_resource);
wl_resource* GetOutputResourceForClient(wl_client* client);
// Self destruct in 5 seconeds.
// Caller must not access this object after calling this.
void OnDisplayRemoved();
int output_counts() const { return output_ids_.size(); }
bool had_registered_output() const { return had_registered_output_; }
private:
const int64_t id_;
raw_ptr<wl_global, DanglingUntriaged | ExperimentalAsh> global_ = nullptr;
base::flat_map<wl_client*, wl_resource*> output_ids_;
bool had_registered_output_ = false;
bool is_destructing_ = false;
};
} // namespace wayland
} // namespace exo
#endif // COMPONENTS_EXO_WAYLAND_WAYLAND_DISPLAY_OUTPUT_H_
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