blob: 3080cf37ab96fcfdd0d88333ae133ab178e8dff9 [file] [log] [blame]
// Copyright 2014 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 <map>
#include <memory>
#include <set>
#include "base/containers/id_map.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/values.h"
#include "content/common/android/gin_java_bridge_errors.h"
#include "content/public/renderer/render_frame_observer.h"
namespace content {
class GinJavaBridgeObject;
// This class handles injecting Java objects into the main frame of a
// RenderView. The 'add' and 'remove' messages received from the browser
// process modify the entries in a map of 'pending' objects. These objects are
// bound to the window object of the main frame when that window object is next
// cleared. These objects remain bound until the window object is cleared
// again.
class GinJavaBridgeDispatcher
: public base::SupportsWeakPtr<GinJavaBridgeDispatcher>,
public RenderFrameObserver {
// GinJavaBridgeObjects are managed by gin. An object gets destroyed
// when it is no more referenced from JS. As GinJavaBridgeObject reports
// deletion of self to GinJavaBridgeDispatcher, we would not have stale
// pointers here.
using ObjectMap = base::IDMap<GinJavaBridgeObject*>;
using ObjectID = ObjectMap::KeyType;
explicit GinJavaBridgeDispatcher(RenderFrame* render_frame);
~GinJavaBridgeDispatcher() override;
// RenderFrameObserver override:
bool OnMessageReceived(const IPC::Message& message) override;
void DidClearWindowObject() override;
void GetJavaMethods(ObjectID object_id, std::set<std::string>* methods);
bool HasJavaMethod(ObjectID object_id, const std::string& method_name);
std::unique_ptr<base::Value> InvokeJavaMethod(
ObjectID object_id,
const std::string& method_name,
const base::ListValue& arguments,
GinJavaBridgeError* error);
GinJavaBridgeObject* GetObject(ObjectID object_id);
void OnGinJavaBridgeObjectDeleted(GinJavaBridgeObject* object);
// RenderFrameObserver implementation.
void OnDestruct() override;
void OnAddNamedObject(const std::string& name,
ObjectID object_id);
void OnRemoveNamedObject(const std::string& name);
typedef std::map<std::string, ObjectID> NamedObjectMap;
NamedObjectMap named_objects_;
ObjectMap objects_;
bool inside_did_clear_window_object_;
} // namespace content