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// Copyright 2015 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 "extensions/browser/guest_view/extensions_guest_view_manager_delegate.h"
#include <utility>
#include "components/guest_view/browser/guest_view_base.h"
#include "components/guest_view/browser/guest_view_manager.h"
#include "components/guest_view/common/guest_view_constants.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/render_process_host.h"
#include "extensions/browser/api/extensions_api_client.h"
#include "extensions/browser/event_router.h"
#include "extensions/browser/guest_view/app_view/app_view_guest.h"
#include "extensions/browser/guest_view/extension_options/extension_options_guest.h"
#include "extensions/browser/guest_view/extension_view/extension_view_guest.h"
#include "extensions/browser/guest_view/guest_view_events.h"
#include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h"
#include "extensions/browser/guest_view/web_view/web_view_guest.h"
#include "extensions/browser/process_manager.h"
#include "extensions/browser/process_map.h"
#include "extensions/common/features/feature.h"
#include "extensions/common/features/feature_provider.h"
using guest_view::GuestViewBase;
using guest_view::GuestViewManager;
namespace extensions {
ExtensionsGuestViewManagerDelegate::ExtensionsGuestViewManagerDelegate(
content::BrowserContext* context)
: context_(context) {
}
ExtensionsGuestViewManagerDelegate::~ExtensionsGuestViewManagerDelegate() {
}
void ExtensionsGuestViewManagerDelegate::DispatchEvent(
const std::string& event_name,
scoped_ptr<base::DictionaryValue> args,
GuestViewBase* guest,
int instance_id) {
EventFilteringInfo info;
info.SetInstanceID(instance_id);
scoped_ptr<base::ListValue> event_args(new base::ListValue());
event_args->Append(args.release());
// GetEventHistogramValue maps guest view event names to their histogram
// value. It needs to be like this because the guest view component doesn't
// know about extensions, so GuestViewEvent can't have an
// extensions::events::HistogramValue as an argument.
events::HistogramValue histogram_value =
guest_view_events::GetEventHistogramValue(event_name);
DCHECK_NE(events::UNKNOWN, histogram_value) << "Event " << event_name
<< " must have a histogram value";
content::WebContents* owner = guest->owner_web_contents();
EventRouter::DispatchEventToSender(owner, guest->browser_context(),
guest->owner_host(), histogram_value,
event_name, std::move(event_args),
EventRouter::USER_GESTURE_UNKNOWN, info);
}
bool ExtensionsGuestViewManagerDelegate::IsGuestAvailableToContext(
GuestViewBase* guest) {
const Feature* feature =
FeatureProvider::GetAPIFeature(guest->GetAPINamespace());
CHECK(feature);
ProcessMap* process_map = ProcessMap::Get(context_);
CHECK(process_map);
const Extension* owner_extension = ProcessManager::Get(context_)->
GetExtensionForWebContents(guest->owner_web_contents());
// Ok for |owner_extension| to be nullptr, the embedder might be WebUI.
Feature::Availability availability = feature->IsAvailableToContext(
owner_extension,
process_map->GetMostLikelyContextType(
owner_extension,
guest->owner_web_contents()->GetRenderProcessHost()->GetID()),
guest->GetOwnerSiteURL());
return availability.is_available();
}
bool ExtensionsGuestViewManagerDelegate::IsOwnedByExtension(
GuestViewBase* guest) {
return !!ProcessManager::Get(context_)->
GetExtensionForWebContents(guest->owner_web_contents());
}
void ExtensionsGuestViewManagerDelegate::RegisterAdditionalGuestViewTypes() {
GuestViewManager* manager = GuestViewManager::FromBrowserContext(context_);
manager->RegisterGuestViewType<AppViewGuest>();
manager->RegisterGuestViewType<ExtensionOptionsGuest>();
manager->RegisterGuestViewType<ExtensionViewGuest>();
manager->RegisterGuestViewType<MimeHandlerViewGuest>();
manager->RegisterGuestViewType<WebViewGuest>();
}
} // namespace extensions
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