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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/media/media_internals_proxy.h"
#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "content/browser/media/media_internals_handler.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_ui.h"
namespace content {
static const int kMediaInternalsProxyEventDelayMilliseconds = 100;
static const net::NetLog::EventType kNetEventTypeFilter[] = {
net::NetLog::TYPE_DISK_CACHE_ENTRY_IMPL,
net::NetLog::TYPE_SPARSE_READ,
net::NetLog::TYPE_SPARSE_WRITE,
net::NetLog::TYPE_URL_REQUEST_START_JOB,
net::NetLog::TYPE_HTTP_TRANSACTION_READ_RESPONSE_HEADERS,
};
MediaInternalsProxy::MediaInternalsProxy() {
registrar_.Add(this, NOTIFICATION_RENDERER_PROCESS_TERMINATED,
NotificationService::AllBrowserContextsAndSources());
}
void MediaInternalsProxy::Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK_EQ(type, NOTIFICATION_RENDERER_PROCESS_TERMINATED);
RenderProcessHost* process = Source<RenderProcessHost>(source).ptr();
CallJavaScriptFunctionOnUIThread("media.onRendererTerminated",
new base::FundamentalValue(process->GetID()));
}
void MediaInternalsProxy::Attach(MediaInternalsMessageHandler* handler) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
handler_ = handler;
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&MediaInternalsProxy::ObserveMediaInternalsOnIOThread, this));
}
void MediaInternalsProxy::Detach() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
handler_ = NULL;
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(
&MediaInternalsProxy::StopObservingMediaInternalsOnIOThread, this));
}
void MediaInternalsProxy::GetEverything() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// Ask MediaInternals for all its data.
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&MediaInternalsProxy::GetEverythingOnIOThread, this));
// Send the page names for constants.
CallJavaScriptFunctionOnUIThread("media.onReceiveConstants", GetConstants());
}
void MediaInternalsProxy::OnUpdate(const base::string16& update) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&MediaInternalsProxy::UpdateUIOnUIThread, this, update));
}
void MediaInternalsProxy::OnAddEntry(const net::NetLog::Entry& entry) {
bool is_event_interesting = false;
for (size_t i = 0; i < arraysize(kNetEventTypeFilter); i++) {
if (entry.type() == kNetEventTypeFilter[i]) {
is_event_interesting = true;
break;
}
}
if (!is_event_interesting)
return;
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&MediaInternalsProxy::AddNetEventOnUIThread, this,
entry.ToValue()));
}
MediaInternalsProxy::~MediaInternalsProxy() {}
base::Value* MediaInternalsProxy::GetConstants() {
base::DictionaryValue* event_phases = new base::DictionaryValue();
event_phases->SetInteger(
net::NetLog::EventPhaseToString(net::NetLog::PHASE_NONE),
net::NetLog::PHASE_NONE);
event_phases->SetInteger(
net::NetLog::EventPhaseToString(net::NetLog::PHASE_BEGIN),
net::NetLog::PHASE_BEGIN);
event_phases->SetInteger(
net::NetLog::EventPhaseToString(net::NetLog::PHASE_END),
net::NetLog::PHASE_END);
base::DictionaryValue* constants = new base::DictionaryValue();
constants->Set("eventTypes", net::NetLog::GetEventTypesAsValue());
constants->Set("eventPhases", event_phases);
return constants;
}
void MediaInternalsProxy::ObserveMediaInternalsOnIOThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
update_callback_ = base::Bind(&MediaInternalsProxy::OnUpdate,
base::Unretained(this));
MediaInternals::GetInstance()->AddUpdateCallback(update_callback_);
if (GetContentClient()->browser()->GetNetLog()) {
net::NetLog* net_log = GetContentClient()->browser()->GetNetLog();
net_log->AddThreadSafeObserver(this, net::NetLog::LOG_ALL_BUT_BYTES);
}
}
void MediaInternalsProxy::StopObservingMediaInternalsOnIOThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
MediaInternals::GetInstance()->RemoveUpdateCallback(update_callback_);
if (GetContentClient()->browser()->GetNetLog()) {
net::NetLog* net_log = GetContentClient()->browser()->GetNetLog();
net_log->RemoveThreadSafeObserver(this);
}
}
void MediaInternalsProxy::GetEverythingOnIOThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
MediaInternals::GetInstance()->SendEverything();
}
void MediaInternalsProxy::UpdateUIOnUIThread(const base::string16& update) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// Don't forward updates to a destructed UI.
if (handler_)
handler_->OnUpdate(update);
}
void MediaInternalsProxy::AddNetEventOnUIThread(base::Value* entry) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// Send the updates to the page in kMediaInternalsProxyEventDelayMilliseconds
// if an update is not already pending.
if (!pending_net_updates_) {
pending_net_updates_.reset(new base::ListValue());
base::MessageLoop::current()->PostDelayedTask(
FROM_HERE,
base::Bind(&MediaInternalsProxy::SendNetEventsOnUIThread, this),
base::TimeDelta::FromMilliseconds(
kMediaInternalsProxyEventDelayMilliseconds));
}
pending_net_updates_->Append(entry);
}
void MediaInternalsProxy::SendNetEventsOnUIThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
CallJavaScriptFunctionOnUIThread("media.onNetUpdate",
pending_net_updates_.release());
}
void MediaInternalsProxy::CallJavaScriptFunctionOnUIThread(
const std::string& function, base::Value* args) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
scoped_ptr<base::Value> args_value(args);
std::vector<const base::Value*> args_vector;
args_vector.push_back(args_value.get());
base::string16 update = WebUI::GetJavascriptCall(function, args_vector);
UpdateUIOnUIThread(update);
}
} // namespace content
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