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// Copyright 2016 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.
#include "gpu/command_buffer/common/constants.h"
#include "gpu/ipc/common/surface_handle.h"
class GURL;
namespace gpu {
// TODO(kylechar): Rename this class. It's used to provide GpuServiceImpl
// functionality to multiple classes in src/gpu/ so delegate is inaccurate.
class GpuChannelManagerDelegate {
// Called on any successful context creation.
virtual void DidCreateContextSuccessfully() = 0;
// Tells the delegate that an offscreen context was created for the provided
// |active_url|.
virtual void DidCreateOffscreenContext(const GURL& active_url) = 0;
// Notification from GPU that the channel is destroyed.
virtual void DidDestroyChannel(int client_id) = 0;
// Tells the delegate that an offscreen context was destroyed for the provided
// |active_url|.
virtual void DidDestroyOffscreenContext(const GURL& active_url) = 0;
// Tells the delegate that a context was lost.
virtual void DidLoseContext(bool offscreen,
error::ContextLostReason reason,
const GURL& active_url) = 0;
// Tells the delegate to cache the given shader information in persistent
// storage. The embedder is expected to repopulate the in-memory cache through
// the respective GpuChannelManager API.
virtual void StoreShaderToDisk(int32_t client_id,
const std::string& key,
const std::string& shader) = 0;
// Cleanly exits the GPU process in response to an error. This will not exit
// with in-process GPU as that would also exit the browser. This can only be
// called from the GPU thread.
virtual void MaybeExitOnContextLost() = 0;
// Returns true if the GPU process is exiting. This can be called from any
// thread.
virtual bool IsExiting() const = 0;
#if defined(OS_WIN)
// Tells the delegate that |child_window| was created in the GPU process and
// to send an IPC to make SetParent() syscall. This syscall is blocked by the
// GPU sandbox and must be made in the browser process.
virtual void SendCreatedChildWindow(SurfaceHandle parent_window,
SurfaceHandle child_window) = 0;
// Sets the currently active URL. Use GURL() to clear the URL.
virtual void SetActiveURL(const GURL& url) = 0;
virtual ~GpuChannelManagerDelegate() = default;
} // namespace gpu