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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/frame_messages.h"
#include "content/renderer/pepper/pepper_in_process_router.h"
#include "content/renderer/render_frame_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(RenderFrame* render_frame)
: RenderFrameObserver(render_frame),
RenderFrameObserverTracker<PepperBrowserConnection>(render_frame),
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_frame_id,
const GURL& document_url,
const GURL& plugin_url) {
// We don't need to know if it's a privileged context for in-process plugins.
// In process plugins are deprecated and the only in-process plugin that
// exists is the "NaCl plugin" which will never need to know this.
bool is_privileged_context = false;
Send(new FrameHostMsg_DidCreateInProcessInstance(
instance,
// Browser provides the render process id.
PepperRendererInstanceData(0, render_frame_id, document_url, plugin_url,
is_privileged_context)));
}
void PepperBrowserConnection::DidDeleteInProcessInstance(PP_Instance instance) {
Send(new FrameHostMsg_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::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();
}
}
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;
}
void PepperBrowserConnection::OnDestruct() {
delete this;
}
} // namespace content
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