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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 MASH_WM_ACCELERATOR_REGISTRAR_IMPL_H_
#define MASH_WM_ACCELERATOR_REGISTRAR_IMPL_H_
#include <stdint.h>
#include <map>
#include "base/callback.h"
#include "base/macros.h"
#include "components/mus/public/interfaces/accelerator_registrar.mojom.h"
#include "mash/wm/root_windows_observer.h"
#include "mojo/public/cpp/bindings/strong_binding.h"
#include "mojo/public/cpp/bindings/weak_binding_set.h"
namespace mash {
namespace wm {
class WindowManagerApplication;
// Manages AcceleratorHandlers from a particular AcceleratorRegistrar
// connection. This manages its own lifetime, and destroys itself when the
// AcceleratorRegistrar and all its AcceleratorHandlers are disconnected. Upon
// destruction, it calls the DestroyCallback.
class AcceleratorRegistrarImpl : public mus::mojom::AcceleratorRegistrar,
public RootWindowsObserver {
public:
using DestroyCallback = base::Callback<void(AcceleratorRegistrarImpl*)>;
AcceleratorRegistrarImpl(WindowManagerApplication* wm_app,
uint32_t accelerator_namespace,
mojo::InterfaceRequest<AcceleratorRegistrar> request,
const DestroyCallback& destroy_callback);
void Destroy();
// Returns true if this AcceleratorRegistrar has an accelerator with the
// specified id.
bool OwnsAccelerator(uint32_t accelerator_id) const;
void ProcessAccelerator(uint32_t accelerator_id, mus::mojom::EventPtr event);
private:
struct Accelerator;
~AcceleratorRegistrarImpl() override;
uint32_t ComputeAcceleratorId(uint32_t accelerator_id) const;
void OnBindingGone();
void OnHandlerGone();
void AddAcceleratorToRoot(RootWindowController* root,
uint32_t namespaced_accelerator_id);
void RemoveAllAccelerators();
// mus::mojom::AcceleratorRegistrar:
void SetHandler(mus::mojom::AcceleratorHandlerPtr handler) override;
void AddAccelerator(uint32_t accelerator_id,
mus::mojom::EventMatcherPtr matcher,
const AddAcceleratorCallback& callback) override;
void RemoveAccelerator(uint32_t accelerator_id) override;
// RootWindowsObserver:
void OnRootWindowControllerAdded(RootWindowController* controller) override;
WindowManagerApplication* wm_app_;
mus::mojom::AcceleratorHandlerPtr accelerator_handler_;
mojo::Binding<AcceleratorRegistrar> binding_;
uint32_t accelerator_namespace_;
std::map<uint32_t, Accelerator> accelerators_;
DestroyCallback destroy_callback_;
DISALLOW_COPY_AND_ASSIGN(AcceleratorRegistrarImpl);
};
} // namespace wm
} // namespace mash
#endif // MASH_WM_ACCELERATOR_REGISTRAR_IMPL_H_
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