blob: 2f0c5f6a5bfeba3fab445919b0be7c9ac8279866 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BRIDGE_DISPATCHER_HOST_H_
#define CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BRIDGE_DISPATCHER_HOST_H_
#include <vector>
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/string16.h"
#include "content/common_child/npobject_stub.h"
#include "content/public/browser/render_view_host_observer.h"
class RouteIDGenerator;
struct NPObject;
namespace content {
class NPChannelBase;
class RenderViewHost;
struct NPVariant_Param;
// This class handles injecting Java objects into a single RenderView. The Java
// object itself lives in the browser process on a background thread, while a
// proxy object is created in the renderer. An instance of this class exists
// for each RenderViewHost.
class JavaBridgeDispatcherHost
: public base::RefCountedThreadSafe<JavaBridgeDispatcherHost>,
public RenderViewHostObserver {
public:
// We hold a weak pointer to the RenderViewhost. It must outlive this object.
JavaBridgeDispatcherHost(RenderViewHost* render_view_host);
// Injects |object| into the main frame of the corresponding RenderView. A
// proxy object is created in the renderer and when the main frame's window
// object is next cleared, this proxy object is bound to the window object
// using |name|. The proxy object remains bound until the next time the
// window object is cleared after a call to RemoveNamedObject() or
// AddNamedObject() with the same name. The proxy object proxies calls back
// to |object|, which is manipulated on the background thread. This class
// holds a reference to |object| for the time that the proxy object is bound
// to the window object.
void AddNamedObject(const string16& name, NPObject* object);
void RemoveNamedObject(const string16& name);
// RenderViewHostObserver overrides:
// The IPC macros require this to be public.
virtual bool Send(IPC::Message* msg) OVERRIDE;
virtual void RenderViewHostDestroyed(
RenderViewHost* render_view_host) OVERRIDE;
private:
friend class base::RefCountedThreadSafe<JavaBridgeDispatcherHost>;
virtual ~JavaBridgeDispatcherHost();
// RenderViewHostObserver override:
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
// Message handlers
void OnGetChannelHandle(IPC::Message* reply_msg);
void GetChannelHandle(IPC::Message* reply_msg);
void CreateNPVariantParam(NPObject* object, NPVariant_Param* param);
void CreateObjectStub(NPObject* object, int route_id);
scoped_refptr<NPChannelBase> channel_;
bool is_renderer_initialized_;
std::vector<base::WeakPtr<NPObjectStub> > stubs_;
DISALLOW_COPY_AND_ASSIGN(JavaBridgeDispatcherHost);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BRIDGE_DISPATCHER_HOST_H_
|
