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// Copyright 2019 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.
#ifndef EXTENSIONS_RENDERER_EXTENSION_INTERACTION_PROVIDER_H_
#define EXTENSIONS_RENDERER_EXTENSION_INTERACTION_PROVIDER_H_
#include "extensions/renderer/bindings/interaction_provider.h"
#include "base/macros.h"
#include "v8/include/v8.h"
namespace extensions {
// Provides user interaction related utilities specific to extensions system,
// works for both RenderFrame based and Service Worker based extensions.
class ExtensionInteractionProvider : public InteractionProvider {
public:
// Extension system specific implementation of token.
// Can refer to a RenderFrame based extension token or Service Worker based
// extension token.
class Token : public InteractionProvider::Token {
public:
~Token() override;
bool is_for_service_worker() const { return is_for_service_worker_; }
private:
friend class ExtensionInteractionProvider;
friend class TestInteractionProvider;
Token(bool is_for_service_worker);
bool is_for_service_worker_ = false;
DISALLOW_COPY_AND_ASSIGN(Token);
};
// Extension system specific implementation of scope.
class Scope : public InteractionProvider::Scope {
public:
~Scope() override;
// Creates a Scope for a Service Worker context, without token.
static std::unique_ptr<Scope> ForWorker(v8::Local<v8::Context> v8_context);
// Creates a scope from a |token|.
static std::unique_ptr<Scope> ForToken(
v8::Local<v8::Context> v8_context,
std::unique_ptr<InteractionProvider::Token> token);
private:
Scope();
// Increments and decrements Service Worker specific interaction counts.
class ScopedWorkerInteraction {
public:
ScopedWorkerInteraction(v8::Local<v8::Context> v8_context,
bool created_from_token);
~ScopedWorkerInteraction();
private:
v8::Local<v8::Context> v8_context_;
bool created_from_token_ = false;
};
// Used for Service Worker based extension Contexts.
std::unique_ptr<ScopedWorkerInteraction> worker_thread_interaction_;
DISALLOW_COPY_AND_ASSIGN(Scope);
};
ExtensionInteractionProvider();
~ExtensionInteractionProvider() override;
// Returns true if |v8_context| has an active interaction.
static bool HasActiveExtensionInteraction(v8::Local<v8::Context> v8_context);
// InteractionProvider:
std::unique_ptr<InteractionProvider::Token> GetCurrentToken(
v8::Local<v8::Context> v8_context) const override;
std::unique_ptr<InteractionProvider::Scope> CreateScopedInteraction(
v8::Local<v8::Context> v8_context,
std::unique_ptr<InteractionProvider::Token> token) const override;
bool HasActiveInteraction(v8::Local<v8::Context> v8_context) const override;
private:
DISALLOW_COPY_AND_ASSIGN(ExtensionInteractionProvider);
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_EXTENSION_INTERACTION_PROVIDER_H_
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