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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 "chrome/browser/extensions/event_router_forwarder.h"
#include <stddef.h>
#include <memory>
#include <utility>
#include "base/bind.h"
#include "base/task/post_task.h"
#include "base/values.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "extensions/browser/event_router.h"
#include "url/gurl.h"
using content::BrowserThread;
namespace extensions {
EventRouterForwarder::EventRouterForwarder() {
}
EventRouterForwarder::~EventRouterForwarder() {
}
void EventRouterForwarder::BroadcastEventToRenderers(
events::HistogramValue histogram_value,
const std::string& event_name,
std::unique_ptr<base::ListValue> event_args,
const GURL& event_url) {
HandleEvent(std::string(), histogram_value, event_name, std::move(event_args),
0, true, event_url);
}
void EventRouterForwarder::DispatchEventToRenderers(
events::HistogramValue histogram_value,
const std::string& event_name,
std::unique_ptr<base::ListValue> event_args,
void* profile,
bool use_profile_to_restrict_events,
const GURL& event_url) {
if (!profile)
return;
HandleEvent(std::string(), histogram_value, event_name, std::move(event_args),
profile, use_profile_to_restrict_events, event_url);
}
void EventRouterForwarder::HandleEvent(
const std::string& extension_id,
events::HistogramValue histogram_value,
const std::string& event_name,
std::unique_ptr<base::ListValue> event_args,
void* profile_ptr,
bool use_profile_to_restrict_events,
const GURL& event_url) {
if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
base::PostTaskWithTraits(
FROM_HERE, {BrowserThread::UI},
base::BindOnce(&EventRouterForwarder::HandleEvent, this, extension_id,
histogram_value, event_name, std::move(event_args),
profile_ptr, use_profile_to_restrict_events, event_url));
return;
}
if (!g_browser_process || !g_browser_process->profile_manager())
return;
ProfileManager* profile_manager = g_browser_process->profile_manager();
Profile* profile = NULL;
if (profile_ptr) {
if (!profile_manager->IsValidProfile(profile_ptr))
return;
profile = reinterpret_cast<Profile*>(profile_ptr);
}
if (profile) {
CallEventRouter(profile, extension_id, histogram_value, event_name,
std::move(event_args),
use_profile_to_restrict_events ? profile : NULL, event_url);
} else {
std::vector<Profile*> profiles(profile_manager->GetLoadedProfiles());
for (size_t i = 0; i < profiles.size(); ++i) {
std::unique_ptr<base::ListValue> per_profile_event_args(
event_args->DeepCopy());
CallEventRouter(profiles[i], extension_id, histogram_value, event_name,
std::move(per_profile_event_args),
use_profile_to_restrict_events ? profiles[i] : NULL,
event_url);
}
}
}
void EventRouterForwarder::CallEventRouter(
Profile* profile,
const std::string& extension_id,
events::HistogramValue histogram_value,
const std::string& event_name,
std::unique_ptr<base::ListValue> event_args,
Profile* restrict_to_profile,
const GURL& event_url) {
#if defined(OS_CHROMEOS)
// Extension does not exist for chromeos login. This needs to be
// removed once we have an extension service for login screen.
// crosbug.com/12856.
if (!extensions::EventRouter::Get(profile))
return;
#endif
auto event = std::make_unique<Event>(
histogram_value, event_name, std::move(event_args), restrict_to_profile);
event->event_url = event_url;
if (extension_id.empty()) {
extensions::EventRouter::Get(profile)->BroadcastEvent(std::move(event));
} else {
extensions::EventRouter::Get(profile)
->DispatchEventToExtension(extension_id, std::move(event));
}
}
} // namespace extensions
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