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.
5 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_
6 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_
8 #include "base/basictypes.h"
9 #include "content/common/content_export.h"
12 class RenderFrameHostDelegate
;
14 class RenderViewHostDelegate
;
15 class RenderWidgetHostDelegate
;
16 class SessionStorageNamespace
;
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
21 // RenderViewHost class.
22 class RenderViewHostFactory
{
24 // Creates a RenderViewHost using the currently registered factory, or the
25 // default one if no factory is registered. Ownership of the returned
26 // pointer will be passed to the caller.
27 static RenderViewHost
* Create(SiteInstance
* instance
,
28 RenderViewHostDelegate
* delegate
,
29 RenderWidgetHostDelegate
* widget_delegate
,
31 int32 main_frame_routing_id
,
35 // Returns true if there is currently a globally-registered factory.
36 static bool has_factory() {
41 RenderViewHostFactory() {}
42 virtual ~RenderViewHostFactory() {}
44 // You can derive from this class and specify an implementation for this
45 // function to create a different kind of RenderViewHost for testing.
46 virtual RenderViewHost
* CreateRenderViewHost(
47 SiteInstance
* instance
,
48 RenderViewHostDelegate
* delegate
,
49 RenderWidgetHostDelegate
* widget_delegate
,
52 int32 main_frame_routing_id
,
53 bool swapped_out
) = 0;
55 // 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
57 // before the call. This class does NOT take ownership of the pointer.
58 CONTENT_EXPORT
static void RegisterFactory(RenderViewHostFactory
* factory
);
60 // Unregister the previously registered factory. With no factory registered,
61 // the default RenderViewHosts will be created.
62 CONTENT_EXPORT
static void UnregisterFactory();
65 // The current globally registered factory. This is NULL when we should
66 // create the default RenderViewHosts.
67 CONTENT_EXPORT
static RenderViewHostFactory
* factory_
;
69 DISALLOW_COPY_AND_ASSIGN(RenderViewHostFactory
);
72 } // namespace content
74 #endif // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_FACTORY_H_