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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/extension_warning_service.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/notification_service.h"
#include "extensions/browser/extension_system.h"
#include "extensions/common/extension.h"
using content::BrowserThread;
namespace extensions {
ExtensionWarningService::ExtensionWarningService(Profile* profile)
: profile_(profile) {
DCHECK(CalledOnValidThread());
if (profile_) {
registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
content::Source<Profile>(profile_->GetOriginalProfile()));
}
}
ExtensionWarningService::~ExtensionWarningService() {}
void ExtensionWarningService::ClearWarnings(
const std::set<ExtensionWarning::WarningType>& types) {
DCHECK(CalledOnValidThread());
bool deleted_anything = false;
for (ExtensionWarningSet::iterator i = warnings_.begin();
i != warnings_.end();) {
if (types.find(i->warning_type()) != types.end()) {
deleted_anything = true;
warnings_.erase(i++);
} else {
++i;
}
}
if (deleted_anything)
NotifyWarningsChanged();
}
std::set<ExtensionWarning::WarningType>
ExtensionWarningService::GetWarningTypesAffectingExtension(
const std::string& extension_id) const {
DCHECK(CalledOnValidThread());
std::set<ExtensionWarning::WarningType> result;
for (ExtensionWarningSet::const_iterator i = warnings_.begin();
i != warnings_.end(); ++i) {
if (i->extension_id() == extension_id)
result.insert(i->warning_type());
}
return result;
}
std::vector<std::string>
ExtensionWarningService::GetWarningMessagesForExtension(
const std::string& extension_id) const {
DCHECK(CalledOnValidThread());
std::vector<std::string> result;
const ExtensionService* extension_service =
ExtensionSystem::Get(profile_)->extension_service();
for (ExtensionWarningSet::const_iterator i = warnings_.begin();
i != warnings_.end(); ++i) {
if (i->extension_id() == extension_id)
result.push_back(i->GetLocalizedMessage(extension_service->extensions()));
}
return result;
}
void ExtensionWarningService::AddWarnings(
const ExtensionWarningSet& warnings) {
DCHECK(CalledOnValidThread());
size_t old_size = warnings_.size();
warnings_.insert(warnings.begin(), warnings.end());
if (old_size != warnings_.size())
NotifyWarningsChanged();
}
// static
void ExtensionWarningService::NotifyWarningsOnUI(
void* profile_id,
const ExtensionWarningSet& warnings) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
Profile* profile = reinterpret_cast<Profile*>(profile_id);
if (!profile ||
!g_browser_process->profile_manager() ||
!g_browser_process->profile_manager()->IsValidProfile(profile)) {
return;
}
extensions::ExtensionWarningService* warning_service =
extensions::ExtensionSystem::Get(profile)->warning_service();
warning_service->AddWarnings(warnings);
}
void ExtensionWarningService::AddObserver(Observer* observer) {
observer_list_.AddObserver(observer);
}
void ExtensionWarningService::RemoveObserver(Observer* observer) {
observer_list_.RemoveObserver(observer);
}
void ExtensionWarningService::NotifyWarningsChanged() {
FOR_EACH_OBSERVER(Observer, observer_list_, ExtensionWarningsChanged());
}
void ExtensionWarningService::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
const Extension* extension =
content::Details<extensions::UnloadedExtensionInfo>(details)->
extension;
// Unloading one extension might have solved the problems of others.
// Therefore, we clear warnings of this type for all extensions.
std::set<ExtensionWarning::WarningType> warning_types =
GetWarningTypesAffectingExtension(extension->id());
ClearWarnings(warning_types);
break;
}
default:
NOTREACHED();
break;
}
}
} // namespace extensions
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