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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_JAVA_GIN_JAVA_BRIDGE_DISPATCHER_HOST_H_ | |
| 6 #define CONTENT_BROWSER_RENDERER_HOST_JAVA_GIN_JAVA_BRIDGE_DISPATCHER_HOST_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <set> | |
| 10 | |
| 11 #include "base/android/jni_weak_ref.h" | |
| 12 #include "base/android/scoped_java_ref.h" | |
| 13 #include "base/memory/ref_counted.h" | |
| 14 #include "base/memory/weak_ptr.h" | |
| 15 #include "content/browser/renderer_host/java/gin_java_bound_object.h" | |
| 16 #include "content/browser/renderer_host/java/gin_java_method_invocation_helper.h
" | |
| 17 #include "content/public/browser/web_contents_observer.h" | |
| 18 | |
| 19 namespace base { | |
| 20 class ListValue; | |
| 21 } | |
| 22 | |
| 23 namespace IPC { | |
| 24 class Message; | |
| 25 } | |
| 26 | |
| 27 namespace content { | |
| 28 | |
| 29 // This class handles injecting Java objects into a single RenderView. The Java | |
| 30 // object itself lives in the browser process on a background thread, while a | |
| 31 // proxy object is created in the renderer. An instance of this class exists | |
| 32 // for each RenderFrameHost. | |
| 33 class GinJavaBridgeDispatcherHost | |
| 34 : public base::SupportsWeakPtr<GinJavaBridgeDispatcherHost>, | |
| 35 public WebContentsObserver, | |
| 36 public GinJavaMethodInvocationHelper::DispatcherDelegate { | |
| 37 public: | |
| 38 | |
| 39 GinJavaBridgeDispatcherHost(WebContents* web_contents, | |
| 40 jobject retained_object_set); | |
| 41 virtual ~GinJavaBridgeDispatcherHost(); | |
| 42 | |
| 43 void AddNamedObject( | |
| 44 const std::string& name, | |
| 45 const base::android::JavaRef<jobject>& object, | |
| 46 const base::android::JavaRef<jclass>& safe_annotation_clazz); | |
| 47 void RemoveNamedObject(const std::string& name); | |
| 48 void SetAllowObjectContentsInspection(bool allow); | |
| 49 | |
| 50 // WebContentsObserver | |
| 51 virtual void RenderFrameCreated(RenderFrameHost* render_frame_host) OVERRIDE; | |
| 52 virtual void RenderFrameDeleted(RenderFrameHost* render_frame_host) OVERRIDE; | |
| 53 virtual void DocumentAvailableInMainFrame() OVERRIDE; | |
| 54 virtual bool OnMessageReceived(const IPC::Message& message, | |
| 55 RenderFrameHost* render_frame_host) OVERRIDE; | |
| 56 | |
| 57 // GinJavaMethodInvocationHelper::DispatcherDelegate | |
| 58 virtual JavaObjectWeakGlobalRef GetObjectWeakRef( | |
| 59 GinJavaBoundObject::ObjectID object_id) OVERRIDE; | |
| 60 | |
| 61 void OnGetMethods(RenderFrameHost* render_frame_host, | |
| 62 GinJavaBoundObject::ObjectID object_id, | |
| 63 IPC::Message* reply_msg); | |
| 64 void OnHasMethod(RenderFrameHost* render_frame_host, | |
| 65 GinJavaBoundObject::ObjectID object_id, | |
| 66 const std::string& method_name, | |
| 67 IPC::Message* reply_msg); | |
| 68 void OnInvokeMethod(RenderFrameHost* render_frame_host, | |
| 69 GinJavaBoundObject::ObjectID object_id, | |
| 70 const std::string& method_name, | |
| 71 const base::ListValue& arguments, | |
| 72 IPC::Message* reply_msg); | |
| 73 | |
| 74 private: | |
| 75 typedef std::set<RenderFrameHost*> RendererSet; | |
| 76 void OnObjectWrapperDeleted(RenderFrameHost* render_frame_host, | |
| 77 GinJavaBoundObject::ObjectID object_id); | |
| 78 | |
| 79 void SendReply(RenderFrameHost* render_frame_host, IPC::Message* reply_msg); | |
| 80 void SendMethods(RenderFrameHost* render_frame_host, | |
| 81 IPC::Message* reply_msg, | |
| 82 const std::set<std::string>& method_names); | |
| 83 void SendHasMethodReply(RenderFrameHost* render_frame_host, | |
| 84 IPC::Message* reply_msg, | |
| 85 bool result); | |
| 86 void ProcessMethodInvocationResult( | |
| 87 RenderFrameHost* render_frame_host, | |
| 88 IPC::Message* reply_msg, | |
| 89 scoped_refptr<GinJavaMethodInvocationHelper> result); | |
| 90 void ProcessMethodInvocationObjectResult( | |
| 91 RenderFrameHost* render_frame_host, | |
| 92 IPC::Message* reply_msg, | |
| 93 scoped_refptr<GinJavaMethodInvocationHelper> result); | |
| 94 GinJavaBoundObject::ObjectID AddObject( | |
| 95 const base::android::JavaRef<jobject>& object, | |
| 96 const base::android::JavaRef<jclass>& safe_annotation_clazz, | |
| 97 bool is_named, | |
| 98 RenderFrameHost* holder); | |
| 99 bool FindObjectId(const base::android::JavaRef<jobject>& object, | |
| 100 GinJavaBoundObject::ObjectID* object_id); | |
| 101 void RemoveHolder(RenderFrameHost* holder, | |
| 102 const GinJavaBoundObject::ObjectMap::iterator& from, | |
| 103 size_t count); | |
| 104 | |
| 105 // Every time a GinJavaBoundObject backed by a real Java object is | |
| 106 // created/destroyed, we insert/remove a strong ref to that Java object into | |
| 107 // this set so that it doesn't get garbage collected while it's still | |
| 108 // potentially in use. Although the set is managed native side, it's owned | |
| 109 // and defined in Java so that pushing refs into it does not create new GC | |
| 110 // roots that would prevent ContentViewCore from being garbage collected. | |
| 111 JavaObjectWeakGlobalRef retained_object_set_; | |
| 112 bool allow_object_contents_inspection_; | |
| 113 RendererSet renderers_; | |
| 114 GinJavaBoundObject::ObjectMap objects_; | |
| 115 typedef std::map<std::string, GinJavaBoundObject::ObjectID> NamedObjectMap; | |
| 116 NamedObjectMap named_objects_; | |
| 117 | |
| 118 DISALLOW_COPY_AND_ASSIGN(GinJavaBridgeDispatcherHost); | |
| 119 }; | |
| 120 | |
| 121 } // namespace content | |
| 122 | |
| 123 #endif // CONTENT_BROWSER_RENDERER_HOST_JAVA_GIN_JAVA_BRIDGE_DISPATCHER_HOST_H_ | |
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