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Side by Side Diff: trunk/src/content/browser/renderer_host/render_view_host_factory.h

Issue 105523006: Revert 241151 "Make RenderFrameHostManager swap RenderFrameHosts..." (Closed) Base URL: svn://svn.chromium.org/chrome/
Patch Set: Created 7 years ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_ 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_
6 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_ 6 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_
7 7
8 #include "base/basictypes.h" 8 #include "base/basictypes.h"
9 #include "content/common/content_export.h" 9 #include "content/common/content_export.h"
10 10
11 namespace content { 11 namespace content {
12 class RenderFrameHostDelegate; 12 class RenderFrameHostDelegate;
13 class RenderViewHost; 13 class RenderViewHost;
14 class RenderViewHostDelegate; 14 class RenderViewHostDelegate;
15 class RenderWidgetHostDelegate; 15 class RenderWidgetHostDelegate;
16 class SessionStorageNamespace; 16 class SessionStorageNamespace;
17 class SiteInstance; 17 class SiteInstance;
18 18
19 // A factory for creating RenderViewHosts. There is a global factory function 19 // A factory for creating RenderViewHosts. There is a global factory function
20 // that can be installed for the purposes of testing to provide a specialized 20 // that can be installed for the purposes of testing to provide a specialized
21 // RenderViewHost class. 21 // RenderViewHost class.
22 class RenderViewHostFactory { 22 class RenderViewHostFactory {
23 public: 23 public:
24 // Creates a RenderViewHost using the currently registered factory, or the 24 // Creates a RenderViewHost using the currently registered factory, or the
25 // default one if no factory is registered. Ownership of the returned 25 // default one if no factory is registered. Ownership of the returned
26 // pointer will be passed to the caller. 26 // pointer will be passed to the caller.
27 static RenderViewHost* Create( 27 static RenderViewHost* Create(
28 SiteInstance* instance, 28 SiteInstance* instance,
29 RenderViewHostDelegate* delegate, 29 RenderViewHostDelegate* delegate,
30 RenderFrameHostDelegate* frame_delegate,
30 RenderWidgetHostDelegate* widget_delegate, 31 RenderWidgetHostDelegate* widget_delegate,
31 int routing_id, 32 int routing_id,
32 int main_frame_routing_id, 33 int main_frame_routing_id,
33 bool swapped_out, 34 bool swapped_out,
34 bool hidden); 35 bool hidden);
35 36
36 // Returns true if there is currently a globally-registered factory. 37 // Returns true if there is currently a globally-registered factory.
37 static bool has_factory() { 38 static bool has_factory() {
38 return !!factory_; 39 return !!factory_;
39 } 40 }
40 41
41 protected: 42 protected:
42 RenderViewHostFactory() {} 43 RenderViewHostFactory() {}
43 virtual ~RenderViewHostFactory() {} 44 virtual ~RenderViewHostFactory() {}
44 45
45 // You can derive from this class and specify an implementation for this 46 // You can derive from this class and specify an implementation for this
46 // function to create a different kind of RenderViewHost for testing. 47 // function to create a different kind of RenderViewHost for testing.
47 virtual RenderViewHost* CreateRenderViewHost( 48 virtual RenderViewHost* CreateRenderViewHost(
48 SiteInstance* instance, 49 SiteInstance* instance,
49 RenderViewHostDelegate* delegate, 50 RenderViewHostDelegate* delegate,
51 RenderFrameHostDelegate* frame_delegate,
50 RenderWidgetHostDelegate* widget_delegate, 52 RenderWidgetHostDelegate* widget_delegate,
51 int routing_id, 53 int routing_id,
52 int main_frame_routing_id, 54 int main_frame_routing_id,
53 bool swapped_out) = 0; 55 bool swapped_out) = 0;
54 56
55 // Registers your factory to be called when new RenderViewHosts are created. 57 // Registers your factory to be called when new RenderViewHosts are created.
56 // We have only one global factory, so there must be no factory registered 58 // We have only one global factory, so there must be no factory registered
57 // before the call. This class does NOT take ownership of the pointer. 59 // before the call. This class does NOT take ownership of the pointer.
58 CONTENT_EXPORT static void RegisterFactory(RenderViewHostFactory* factory); 60 CONTENT_EXPORT static void RegisterFactory(RenderViewHostFactory* factory);
59 61
60 // Unregister the previously registered factory. With no factory registered, 62 // Unregister the previously registered factory. With no factory registered,
61 // the default RenderViewHosts will be created. 63 // the default RenderViewHosts will be created.
62 CONTENT_EXPORT static void UnregisterFactory(); 64 CONTENT_EXPORT static void UnregisterFactory();
63 65
64 private: 66 private:
65 // The current globally registered factory. This is NULL when we should 67 // The current globally registered factory. This is NULL when we should
66 // create the default RenderViewHosts. 68 // create the default RenderViewHosts.
67 CONTENT_EXPORT static RenderViewHostFactory* factory_; 69 CONTENT_EXPORT static RenderViewHostFactory* factory_;
68 70
69 DISALLOW_COPY_AND_ASSIGN(RenderViewHostFactory); 71 DISALLOW_COPY_AND_ASSIGN(RenderViewHostFactory);
70 }; 72 };
71 73
72 } // namespace content 74 } // namespace content
73 75
74 #endif // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_ 76 #endif // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_
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