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pepper_browser_connection.cc
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pepper_browser_connection.cc
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// Copyright 2013 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 "content/renderer/pepper/pepper_browser_connection.h"
#include <limits>
#include "base/logging.h"
#include "content/common/view_messages.h"
#include "content/renderer/pepper/pepper_in_process_router.h"
#include "content/renderer/render_view_impl.h"
#include "ipc/ipc_message_macros.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/resource_message_params.h"
namespace content {
PepperBrowserConnection::PepperBrowserConnection(RenderView* render_view)
: RenderViewObserver(render_view),
RenderViewObserverTracker<PepperBrowserConnection>(render_view),
next_sequence_number_(1) {
}
PepperBrowserConnection::~PepperBrowserConnection() {
}
bool PepperBrowserConnection::OnMessageReceived(const IPC::Message& msg) {
// Check if the message is an in-process reply.
if (PepperInProcessRouter::OnPluginMsgReceived(msg))
return true;
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PepperBrowserConnection, msg)
IPC_MESSAGE_HANDLER(PpapiHostMsg_CreateResourceHostsFromHostReply,
OnMsgCreateResourceHostsFromHostReply)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PepperBrowserConnection::DidCreateInProcessInstance(
PP_Instance instance,
int render_view_id,
const GURL& document_url,
const GURL& plugin_url) {
Send(new ViewHostMsg_DidCreateInProcessInstance(
instance,
// Browser provides the render process id.
PepperRendererInstanceData(0,
render_view_id,
document_url,
plugin_url)));
}
void PepperBrowserConnection::DidDeleteInProcessInstance(PP_Instance instance) {
Send(new ViewHostMsg_DidDeleteInProcessInstance(instance));
}
void PepperBrowserConnection::SendBrowserCreate(
int child_process_id,
PP_Instance instance,
const std::vector<IPC::Message>& nested_msgs,
const PendingResourceIDCallback& callback) {
int32_t sequence_number = GetNextSequence();
pending_create_map_[sequence_number] = callback;
ppapi::proxy::ResourceMessageCallParams params(0, sequence_number);
Send(new PpapiHostMsg_CreateResourceHostsFromHost(
routing_id(),
child_process_id,
params,
instance,
nested_msgs));
}
void PepperBrowserConnection::SendBrowserFileRefGetInfo(
int child_process_id,
const std::vector<PP_Resource>& resources,
const FileRefGetInfoCallback& callback) {
int32_t sequence_number = GetNextSequence();
get_info_map_[sequence_number] = callback;
Send(new PpapiHostMsg_FileRef_GetInfoForRenderer(
routing_id(), child_process_id, sequence_number, resources));
}
void PepperBrowserConnection::OnMsgCreateResourceHostsFromHostReply(
int32_t sequence_number,
const std::vector<int>& pending_resource_host_ids) {
// Check that the message is destined for the plugin this object is associated
// with.
std::map<int32_t, PendingResourceIDCallback>::iterator it =
pending_create_map_.find(sequence_number);
if (it != pending_create_map_.end()) {
it->second.Run(pending_resource_host_ids);
pending_create_map_.erase(it);
} else {
NOTREACHED();
}
}
void PepperBrowserConnection::OnMsgFileRefGetInfoReply(
int32_t sequence_number,
const std::vector<PP_Resource>& resources,
const std::vector<PP_FileSystemType>& types,
const std::vector<std::string>& file_system_url_specs,
const std::vector<base::FilePath>& external_paths) {
// Check that the message is destined for the plugin this object is associated
// with.
std::map<int32_t, FileRefGetInfoCallback>::iterator it =
get_info_map_.find(sequence_number);
if (it != get_info_map_.end()) {
FileRefGetInfoCallback callback = it->second;
get_info_map_.erase(it);
callback.Run(resources, types, file_system_url_specs, external_paths);
} else {
NOTREACHED();
}
}
int32_t PepperBrowserConnection::GetNextSequence() {
// Return the value with wraparound, making sure we don't make a sequence
// number with a 0 ID. Note that signed wraparound is undefined in C++ so we
// manually check.
int32_t ret = next_sequence_number_;
if (next_sequence_number_ == std::numeric_limits<int32_t>::max())
next_sequence_number_ = 1; // Skip 0 which is invalid.
else
next_sequence_number_++;
return ret;
}
} // namespace content