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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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