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// Copyright (c) 2009 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_process_manager.h"
#include "chrome/browser/browsing_instance.h"
#include "chrome/browser/extensions/extension_host.h"
#if defined(TOOLKIT_VIEWS)
#include "chrome/browser/extensions/extension_view.h"
#endif
#include "chrome/browser/extensions/extensions_service.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/tab_contents/site_instance.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/notification_service.h"
static void CreateBackgroundHosts(
ExtensionProcessManager* manager, const ExtensionList* extensions) {
for (ExtensionList::const_iterator extension = extensions->begin();
extension != extensions->end(); ++extension) {
// Start the process for the master page, if it exists.
if ((*extension)->background_url().is_valid())
manager->CreateBackgroundHost(*extension, (*extension)->background_url());
}
}
ExtensionProcessManager::ExtensionProcessManager(Profile* profile)
: browsing_instance_(new BrowsingInstance(profile)) {
registrar_.Add(this, NotificationType::EXTENSIONS_LOADED,
NotificationService::AllSources());
registrar_.Add(this, NotificationType::EXTENSION_UNLOADED,
NotificationService::AllSources());
if (profile->GetExtensionsService())
CreateBackgroundHosts(this, profile->GetExtensionsService()->extensions());
}
ExtensionProcessManager::~ExtensionProcessManager() {
// Copy background_hosts_ to avoid iterator invalidation issues.
ExtensionHostSet to_delete(background_hosts_.begin(),
background_hosts_.end());
ExtensionHostSet::iterator iter;
for (iter = to_delete.begin(); iter != to_delete.end(); ++iter)
delete *iter;
}
#if defined(TOOLKIT_VIEWS)
ExtensionView* ExtensionProcessManager::CreateView(Extension* extension,
const GURL& url,
Browser* browser) {
ExtensionHost* host = new ExtensionHost(extension,
GetSiteInstanceForURL(url), this);
all_hosts_.insert(host);
return new ExtensionView(host, browser, url);
}
#endif
void ExtensionProcessManager::CreateBackgroundHost(Extension* extension,
const GURL& url) {
ExtensionHost* host =
new ExtensionHost(extension, GetSiteInstanceForURL(url), this);
host->CreateRenderView(url, NULL); // create a RenderViewHost with no view
all_hosts_.insert(host);
background_hosts_.insert(host);
}
SiteInstance* ExtensionProcessManager::GetSiteInstanceForURL(const GURL& url) {
return browsing_instance_->GetSiteInstanceForURL(url);
}
void ExtensionProcessManager::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
switch (type.value) {
case NotificationType::EXTENSIONS_LOADED: {
const ExtensionList* extensions = Details<ExtensionList>(details).ptr();
CreateBackgroundHosts(this, extensions);
break;
}
case NotificationType::EXTENSION_UNLOADED: {
Extension* extension = Details<Extension>(details).ptr();
for (ExtensionHostSet::iterator iter = background_hosts_.begin();
iter != background_hosts_.end(); ++iter) {
ExtensionHost* host = *iter;
if (host->extension()->id() == extension->id()) {
delete host;
// |host| should deregister itself from our structures.
DCHECK(background_hosts_.find(host) == background_hosts_.end());
break;
}
}
break;
}
default:
NOTREACHED();
}
}
void ExtensionProcessManager::OnExtensionHostDestroyed(ExtensionHost* host) {
all_hosts_.erase(host);
background_hosts_.erase(host);
}
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