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1 // Copyright (c) 2012 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_BROWSER_PLUGIN_OLD_BROWSER_PLUGIN_HOST_H__ | |
6 #define CONTENT_BROWSER_BROWSER_PLUGIN_OLD_BROWSER_PLUGIN_HOST_H__ | |
7 | |
8 #include <map> | |
9 | |
10 #include "base/compiler_specific.h" | |
11 #include "content/public/browser/notification_observer.h" | |
12 #include "content/public/browser/notification_registrar.h" | |
13 #include "content/public/browser/web_contents_delegate.h" | |
14 #include "content/public/browser/web_contents_observer.h" | |
15 #include "ppapi/c/pp_instance.h" | |
16 #include "ui/gfx/size.h" | |
17 | |
18 class WebContentsImpl; | |
19 | |
20 namespace IPC { | |
21 struct ChannelHandle; | |
22 } | |
23 | |
24 namespace content { | |
25 | |
26 class RenderProcessHost; | |
27 | |
28 namespace old { | |
29 | |
30 | |
31 // A BrowserPluginHost object is used by both embedders and guests. | |
32 // The primary purpose of BrowserPluginHost is to allow an embedder | |
33 // to manage the lifetime of its guests. It cleans up its guests | |
34 // on navigation, crashes, and "hides" guests when it hides. | |
35 // For the guest, BrowserPluginHost keeps track of its embedder, | |
36 // and its BrowserPlugin instance ID. | |
37 class BrowserPluginHost : public WebContentsObserver, | |
38 public NotificationObserver, | |
39 public WebContentsDelegate { | |
40 public: | |
41 // BrowserPluginHost is owned by a WebContentsImpl. Here it takes in its | |
42 // owner. The owner can be either a guest or embedder WebContents. | |
43 explicit BrowserPluginHost(WebContentsImpl* web_contents); | |
44 | |
45 virtual ~BrowserPluginHost(); | |
46 | |
47 void ConnectEmbedderToChannel(RenderViewHost* render_view_host, | |
48 const IPC::ChannelHandle& handle); | |
49 | |
50 // This is called on the first navigation of the browser plugin. It creates | |
51 // a new WebContentsImpl for the guest, associates it with its embedder, sets | |
52 // its size and navigates it to the src URL. | |
53 void NavigateGuestFromEmbedder(RenderViewHost* render_view_host, | |
54 int container_instance_id, | |
55 long long frame_id, | |
56 const std::string& src); | |
57 | |
58 RenderProcessHost* embedder_render_process_host() const { | |
59 return embedder_render_process_host_; | |
60 } | |
61 int instance_id() const { return instance_id_; } | |
62 | |
63 private: | |
64 typedef std::map<WebContentsImpl*, int64> GuestMap; | |
65 typedef std::map<int, BrowserPluginHost*> ContainerInstanceMap; | |
66 | |
67 // Get a guest BrowserPluginHost by its container ID specified | |
68 // in BrowserPlugin. | |
69 BrowserPluginHost* GetGuestByContainerID(int container_id); | |
70 | |
71 // Associate a guest with its container instance ID. | |
72 void RegisterContainerInstance( | |
73 int container_id, | |
74 BrowserPluginHost* observer); | |
75 | |
76 // An embedder BrowserPluginHost keeps track of | |
77 // its guests so that if it navigates away, its associated RenderView | |
78 // crashes or it is hidden, it takes appropriate action on the guest. | |
79 void AddGuest(WebContentsImpl* guest, int64 frame_id); | |
80 | |
81 // This removes a guest from an embedder's guest list. | |
82 // TODO(fsamuel): Use this when deleting guest after they crash. | |
83 // ToT plugin crash handling seems to be broken in this case and so I can't | |
84 // test this scenario at the moment. Delete this comment once fixed. | |
85 void RemoveGuest(WebContentsImpl* guest); | |
86 | |
87 void set_embedder_render_process_host( | |
88 RenderProcessHost* embedder_render_process_host) { | |
89 embedder_render_process_host_ = embedder_render_process_host; | |
90 } | |
91 void set_instance_id(int instance_id) { instance_id_ = instance_id; } | |
92 | |
93 void OnNavigateFromGuest(PP_Instance instance, | |
94 const std::string& src); | |
95 | |
96 void DestroyGuests(); | |
97 | |
98 // WebContentsDelegate implementation. | |
99 virtual bool TakeFocus(bool reverse) OVERRIDE; | |
100 | |
101 // WebContentObserver implementation. | |
102 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | |
103 // Used to monitor frame navigation to cleanup guests when a frame navigates | |
104 // away from the browser plugin it's hosting. | |
105 virtual void DidCommitProvisionalLoadForFrame( | |
106 int64 frame_id, | |
107 bool is_main_frame, | |
108 const GURL& url, | |
109 PageTransition transition_type, | |
110 RenderViewHost* render_view_host) OVERRIDE; | |
111 virtual void RenderViewDeleted(RenderViewHost* render_view_host) OVERRIDE; | |
112 virtual void RenderViewGone(base::TerminationStatus status) OVERRIDE; | |
113 virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE; | |
114 | |
115 // NotificationObserver method override. | |
116 virtual void Observe(int type, | |
117 const NotificationSource& source, | |
118 const NotificationDetails& details) OVERRIDE; | |
119 | |
120 // A scoped container for notification registries. | |
121 NotificationRegistrar registrar_; | |
122 RenderProcessHost* embedder_render_process_host_; | |
123 std::string embedder_channel_name_; | |
124 // An identifier that uniquely identifies a browser plugin container | |
125 // within an embedder. | |
126 int instance_id_; | |
127 GuestMap guests_; | |
128 ContainerInstanceMap guests_by_container_id_; | |
129 | |
130 DISALLOW_COPY_AND_ASSIGN(BrowserPluginHost); | |
131 }; | |
132 | |
133 } // namespace old | |
134 } // namespace content | |
135 | |
136 #endif // CONTENT_BROWSER_BROWSER_PLUGIN_OLD_BROWSER_PLUGIN_HOST_H_ | |
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