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// Copyright (c) 2012 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/browser/renderer_host/pepper/browser_ppapi_host_impl.h"
#include "content/browser/renderer_host/pepper/pepper_message_filter.h"
#include "content/browser/tracing/trace_message_filter.h"
#include "content/common/pepper_renderer_instance_data.h"
#include "content/public/common/process_type.h"
#include "ipc/ipc_message_macros.h"
#include "ppapi/proxy/ppapi_messages.h"
namespace content {
// static
BrowserPpapiHost* BrowserPpapiHost::CreateExternalPluginProcess(
IPC::Sender* sender,
ppapi::PpapiPermissions permissions,
base::ProcessHandle plugin_child_process,
IPC::ChannelProxy* channel,
int render_process_id,
int render_view_id,
const base::FilePath& profile_directory) {
// The plugin name and path shouldn't be needed for external plugins.
BrowserPpapiHostImpl* browser_ppapi_host =
new BrowserPpapiHostImpl(sender, permissions, std::string(),
base::FilePath(), profile_directory,
false /* in_process */,
true /* external_plugin */);
browser_ppapi_host->set_plugin_process_handle(plugin_child_process);
scoped_refptr<PepperMessageFilter> pepper_message_filter(
new PepperMessageFilter());
channel->AddFilter(pepper_message_filter->GetFilter());
channel->AddFilter(browser_ppapi_host->message_filter());
channel->AddFilter((new TraceMessageFilter())->GetFilter());
return browser_ppapi_host;
}
BrowserPpapiHostImpl::BrowserPpapiHostImpl(
IPC::Sender* sender,
const ppapi::PpapiPermissions& permissions,
const std::string& plugin_name,
const base::FilePath& plugin_path,
const base::FilePath& profile_data_directory,
bool in_process,
bool external_plugin)
: ppapi_host_(new ppapi::host::PpapiHost(sender, permissions)),
plugin_process_handle_(base::kNullProcessHandle),
plugin_name_(plugin_name),
plugin_path_(plugin_path),
profile_data_directory_(profile_data_directory),
in_process_(in_process),
external_plugin_(external_plugin),
ssl_context_helper_(new SSLContextHelper()) {
message_filter_ = new HostMessageFilter(ppapi_host_.get(), this);
ppapi_host_->AddHostFactoryFilter(scoped_ptr<ppapi::host::HostFactory>(
new ContentBrowserPepperHostFactory(this)));
}
BrowserPpapiHostImpl::~BrowserPpapiHostImpl() {
// Notify the filter so it won't foward messages to us.
message_filter_->OnHostDestroyed();
// Delete the host explicitly first. This shutdown will destroy the
// resources, which may want to do cleanup in their destructors and expect
// their pointers to us to be valid.
ppapi_host_.reset();
}
ppapi::host::PpapiHost* BrowserPpapiHostImpl::GetPpapiHost() {
return ppapi_host_.get();
}
base::ProcessHandle BrowserPpapiHostImpl::GetPluginProcessHandle() const {
// Handle should previously have been set before use.
DCHECK(plugin_process_handle_ != base::kNullProcessHandle);
return plugin_process_handle_;
}
bool BrowserPpapiHostImpl::IsValidInstance(PP_Instance instance) const {
return instance_map_.find(instance) != instance_map_.end();
}
bool BrowserPpapiHostImpl::GetRenderViewIDsForInstance(
PP_Instance instance,
int* render_process_id,
int* render_view_id) const {
InstanceMap::const_iterator found = instance_map_.find(instance);
if (found == instance_map_.end()) {
*render_process_id = 0;
*render_view_id = 0;
return false;
}
*render_process_id = found->second.render_process_id;
*render_view_id = found->second.render_view_id;
return true;
}
const std::string& BrowserPpapiHostImpl::GetPluginName() {
return plugin_name_;
}
const base::FilePath& BrowserPpapiHostImpl::GetPluginPath() {
return plugin_path_;
}
const base::FilePath& BrowserPpapiHostImpl::GetProfileDataDirectory() {
return profile_data_directory_;
}
GURL BrowserPpapiHostImpl::GetDocumentURLForInstance(PP_Instance instance) {
InstanceMap::const_iterator found = instance_map_.find(instance);
if (found == instance_map_.end())
return GURL();
return found->second.document_url;
}
GURL BrowserPpapiHostImpl::GetPluginURLForInstance(PP_Instance instance) {
InstanceMap::const_iterator found = instance_map_.find(instance);
if (found == instance_map_.end())
return GURL();
return found->second.plugin_url;
}
void BrowserPpapiHostImpl::SetOnKeepaliveCallback(
const BrowserPpapiHost::OnKeepaliveCallback& callback) {
on_keepalive_callback_ = callback;
}
void BrowserPpapiHostImpl::AddInstance(
PP_Instance instance,
const PepperRendererInstanceData& instance_data) {
DCHECK(instance_map_.find(instance) == instance_map_.end());
instance_map_[instance] = instance_data;
}
void BrowserPpapiHostImpl::DeleteInstance(PP_Instance instance) {
InstanceMap::iterator found = instance_map_.find(instance);
if (found == instance_map_.end()) {
NOTREACHED();
return;
}
instance_map_.erase(found);
}
BrowserPpapiHostImpl::HostMessageFilter::HostMessageFilter(
ppapi::host::PpapiHost* ppapi_host,
BrowserPpapiHostImpl* browser_ppapi_host_impl)
: ppapi_host_(ppapi_host),
browser_ppapi_host_impl_(browser_ppapi_host_impl) {
}
bool BrowserPpapiHostImpl::HostMessageFilter::OnMessageReceived(
const IPC::Message& msg) {
// Don't forward messages if our owner object has been destroyed.
if (!ppapi_host_)
return false;
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(BrowserPpapiHostImpl::HostMessageFilter, msg)
// Add necessary message handlers here.
IPC_MESSAGE_HANDLER(PpapiHostMsg_Keepalive, OnKeepalive)
IPC_MESSAGE_UNHANDLED(handled = ppapi_host_->OnMessageReceived(msg))
IPC_END_MESSAGE_MAP();
return handled;
}
void BrowserPpapiHostImpl::HostMessageFilter::OnHostDestroyed() {
DCHECK(ppapi_host_);
ppapi_host_ = NULL;
browser_ppapi_host_impl_ = NULL;
}
BrowserPpapiHostImpl::HostMessageFilter::~HostMessageFilter() {
}
void BrowserPpapiHostImpl::HostMessageFilter::OnKeepalive() {
if (browser_ppapi_host_impl_)
browser_ppapi_host_impl_->OnKeepalive();
}
void BrowserPpapiHostImpl::OnKeepalive() {
// An instance has been active. The on_keepalive_callback_ will be
// used to permit the content embedder to handle this, e.g. by tracking
// activity and shutting down processes that go idle.
//
// Currently embedders do not need to distinguish between instances having
// different idle state, and thus this implementation handles all instances
// for this module together.
if (on_keepalive_callback_.is_null())
return;
BrowserPpapiHost::OnKeepaliveInstanceData
instance_data(instance_map_.size());
InstanceMap::iterator instance = instance_map_.begin();
int i = 0;
while (instance != instance_map_.end()) {
instance_data[i].render_process_id = instance->second.render_process_id;
instance_data[i].render_view_id = instance->second.render_view_id;
instance_data[i].document_url = instance->second.document_url;
++instance;
++i;
}
on_keepalive_callback_.Run(instance_data, profile_data_directory_);
}
} // namespace content
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