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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMECAST_RENDERER_FEATURE_MANAGER_H_
#define CHROMECAST_RENDERER_FEATURE_MANAGER_H_
#include <iosfwd>
#include <map>
#include <string>
#include <vector>
#include "base/containers/flat_set.h"
#include "base/values.h"
#include "chromecast/common/mojom/feature_manager.mojom.h"
#include "chromecast/renderer/native_bindings_helper.h"
#include "content/public/renderer/render_frame_observer.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "services/service_manager/public/cpp/binder_registry.h"
#include "url/gurl.h"
namespace chromecast {
// Receives messages from the browser process to enable/disable Cast
// application-facing features. Features usually have an associated V8 binding
// which exposes a platform capability to the app.
class FeatureManager : public content::RenderFrameObserver,
public shell::mojom::FeatureManager {
public:
explicit FeatureManager(content::RenderFrame* render_frame);
FeatureManager(const FeatureManager&) = delete;
FeatureManager& operator=(const FeatureManager&) = delete;
~FeatureManager() override;
const GURL& dev_origin() const { return dev_origin_; }
bool configured() const { return configured_; }
bool FeatureEnabled(const std::string& feature) const;
const chromecast::shell::mojom::FeaturePtr& GetFeature(
const std::string& feature) const;
friend std::ostream& operator<<(std::ostream& os,
const FeatureManager& features);
protected:
// Allows a derived class to add its own features at the end of
// mojom::FeatureManager::ConfigureFeatures().
virtual void ConfigureFeaturesInternal();
// Map for storing enabled features, name -> FeaturePtr.
using FeaturesMap =
std::map<std::string, chromecast::shell::mojom::FeaturePtr>;
FeaturesMap features_map_;
base::flat_set<CastBinding*> v8_bindings_;
private:
// content::RenderFrameObserver implementation:
void OnInterfaceRequestForFrame(
const std::string& interface_name,
mojo::ScopedMessagePipeHandle* interface_pipe) override;
void DidClearWindowObject() override;
void OnDestruct() override;
// shell::mojom::FeatureManager implementation
void ConfigureFeatures(
std::vector<chromecast::shell::mojom::FeaturePtr> features) override;
// Bind the incoming request with this implementation
void OnFeatureManagerRequest(
mojo::PendingReceiver<shell::mojom::FeatureManager> request);
void EnableBindings();
void SetupAdditionalSecureOrigin();
// Flag for when the configuration message is received from the browser.
bool configured_;
bool can_install_bindings_;
// Origin enabled for development
GURL dev_origin_;
bool secure_origin_set_;
service_manager::BinderRegistry registry_;
mojo::ReceiverSet<shell::mojom::FeatureManager> bindings_;
};
} // namespace chromecast
#endif // CHROMECAST_RENDERER_FEATURE_MANAGER_H_