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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 CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_ | |
6 #define CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_ | |
7 | |
8 #include <map> | |
9 | |
10 #include "base/gtest_prod_util.h" | |
11 #include "base/lazy_instance.h" | |
12 #include "base/macros.h" | |
13 #include "content/public/browser/browser_plugin_guest_manager.h" | |
14 #include "content/public/browser/site_instance.h" | |
15 #include "content/public/browser/web_contents.h" | |
16 | |
17 class GuestViewBase; | |
18 class GuestViewManagerFactory; | |
19 class GURL; | |
20 | |
21 namespace content { | |
22 class BrowserContext; | |
23 class WebContents; | |
24 } // namespace content | |
25 | |
26 class GuestViewManager : public content::BrowserPluginGuestManager, | |
27 public base::SupportsUserData::Data { | |
28 public: | |
29 explicit GuestViewManager(content::BrowserContext* context); | |
30 virtual ~GuestViewManager(); | |
31 | |
32 static GuestViewManager* FromBrowserContext(content::BrowserContext* context); | |
33 | |
34 // Overrides factory for testing. Default (NULL) value indicates regular | |
35 // (non-test) environment. | |
36 static void set_factory_for_testing(GuestViewManagerFactory* factory) { | |
37 GuestViewManager::factory_ = factory; | |
38 } | |
39 // Returns the guest WebContents associated with the given |guest_instance_id| | |
40 // if the provided |embedder_render_process_id| is allowed to access it. | |
41 // If the embedder is not allowed access, the embedder will be killed, and | |
42 // this method will return NULL. If no WebContents exists with the given | |
43 // instance ID, then NULL will also be returned. | |
44 content::WebContents* GetGuestByInstanceIDSafely( | |
45 int guest_instance_id, | |
46 int embedder_render_process_id); | |
47 | |
48 int GetNextInstanceID(); | |
49 | |
50 typedef base::Callback<void(content::WebContents*)> | |
51 WebContentsCreatedCallback; | |
52 void CreateGuest(const std::string& view_type, | |
53 const std::string& embedder_extension_id, | |
54 content::WebContents* embedder_web_contents, | |
55 const base::DictionaryValue& create_params, | |
56 const WebContentsCreatedCallback& callback); | |
57 | |
58 content::WebContents* CreateGuestWithWebContentsParams( | |
59 const std::string& view_type, | |
60 const std::string& embedder_extension_id, | |
61 int embedder_render_process_id, | |
62 const content::WebContents::CreateParams& create_params); | |
63 | |
64 content::SiteInstance* GetGuestSiteInstance( | |
65 const GURL& guest_site); | |
66 | |
67 // BrowserPluginGuestManager implementation. | |
68 virtual void MaybeGetGuestByInstanceIDOrKill( | |
69 int guest_instance_id, | |
70 int embedder_render_process_id, | |
71 const GuestByInstanceIDCallback& callback) OVERRIDE; | |
72 virtual bool ForEachGuest(content::WebContents* embedder_web_contents, | |
73 const GuestCallback& callback) OVERRIDE; | |
74 | |
75 protected: | |
76 friend class GuestViewBase; | |
77 FRIEND_TEST_ALL_PREFIXES(GuestViewManagerTest, AddRemove); | |
78 | |
79 // Can be overriden in tests. | |
80 virtual void AddGuest(int guest_instance_id, | |
81 content::WebContents* guest_web_contents); | |
82 | |
83 void RemoveGuest(int guest_instance_id); | |
84 | |
85 content::WebContents* GetGuestByInstanceID(int guest_instance_id); | |
86 | |
87 bool CanEmbedderAccessInstanceIDMaybeKill( | |
88 int embedder_render_process_id, | |
89 int guest_instance_id); | |
90 | |
91 bool CanEmbedderAccessInstanceID(int embedder_render_process_id, | |
92 int guest_instance_id); | |
93 | |
94 // Returns true if |guest_instance_id| can be used to add a new guest to this | |
95 // manager. | |
96 // We disallow adding new guest with instance IDs that were previously removed | |
97 // from this manager using RemoveGuest. | |
98 bool CanUseGuestInstanceID(int guest_instance_id); | |
99 | |
100 // Static factory instance (always NULL for non-test). | |
101 static GuestViewManagerFactory* factory_; | |
102 | |
103 // Contains guests' WebContents, mapping from their instance ids. | |
104 typedef std::map<int, content::WebContents*> GuestInstanceMap; | |
105 GuestInstanceMap guest_web_contents_by_instance_id_; | |
106 | |
107 int current_instance_id_; | |
108 | |
109 // Any instance ID whose number not greater than this was removed via | |
110 // RemoveGuest. | |
111 // This is used so that we don't have store all removed instance IDs in | |
112 // |removed_instance_ids_|. | |
113 int last_instance_id_removed_; | |
114 // The remaining instance IDs that are greater than | |
115 // |last_instance_id_removed_| are kept here. | |
116 std::set<int> removed_instance_ids_; | |
117 | |
118 content::BrowserContext* context_; | |
119 | |
120 DISALLOW_COPY_AND_ASSIGN(GuestViewManager); | |
121 }; | |
122 | |
123 #endif // CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_ | |
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