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| 1 // Copyright 2013 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 // A proxy for NPObject that sends all calls to the object to an NPObjectStub | |
| 6 // running in a different process. | |
| 7 | |
| 8 #ifndef CONTENT_CHILD_NPAPI_NPOBJECT_PROXY_H_ | |
| 9 #define CONTENT_CHILD_NPAPI_NPOBJECT_PROXY_H_ | |
| 10 | |
| 11 #include <stdint.h> | |
| 12 | |
| 13 #include "base/memory/ref_counted.h" | |
| 14 #include "content/child/npapi/npobject_base.h" | |
| 15 #include "ipc/ipc_listener.h" | |
| 16 #include "ipc/ipc_sender.h" | |
| 17 #include "third_party/npapi/bindings/npruntime.h" | |
| 18 #include "ui/gfx/native_widget_types.h" | |
| 19 #include "url/gurl.h" | |
| 20 | |
| 21 struct NPObject; | |
| 22 | |
| 23 namespace content { | |
| 24 class NPChannelBase; | |
| 25 | |
| 26 // When running a plugin in a different process from the renderer, we need to | |
| 27 // proxy calls to NPObjects across process boundaries. This happens both ways, | |
| 28 // as a plugin can get an NPObject for the window, and a page can get an | |
| 29 // NPObject for the plugin. In the process that interacts with the NPobject we | |
| 30 // give it an NPObjectProxy instead. All calls to it are sent across an IPC | |
| 31 // channel (specifically, a NPChannelBase). The NPObjectStub on the other | |
| 32 // side translates the IPC messages into calls to the actual NPObject, and | |
| 33 // returns the marshalled result. | |
| 34 class NPObjectProxy : public IPC::Listener, | |
| 35 public IPC::Sender, | |
| 36 public NPObjectBase { | |
| 37 public: | |
| 38 ~NPObjectProxy() override; | |
| 39 | |
| 40 static NPObject* Create(NPChannelBase* channel, | |
| 41 int route_id, | |
| 42 int render_view_id, | |
| 43 const GURL& page_url, | |
| 44 NPP owner); | |
| 45 | |
| 46 // IPC::Sender implementation: | |
| 47 bool Send(IPC::Message* msg) override; | |
| 48 int route_id() { return route_id_; } | |
| 49 NPChannelBase* channel() { return channel_.get(); } | |
| 50 | |
| 51 // The next 9 functions are called on NPObjects from the plugin and browser. | |
| 52 static bool NPHasMethod(NPObject *obj, | |
| 53 NPIdentifier name); | |
| 54 static bool NPInvoke(NPObject *obj, | |
| 55 NPIdentifier name, | |
| 56 const NPVariant *args, | |
| 57 uint32_t arg_count, | |
| 58 NPVariant *result); | |
| 59 static bool NPInvokeDefault(NPObject *npobj, | |
| 60 const NPVariant *args, | |
| 61 uint32_t arg_count, | |
| 62 NPVariant *result); | |
| 63 static bool NPHasProperty(NPObject *obj, | |
| 64 NPIdentifier name); | |
| 65 static bool NPGetProperty(NPObject *obj, | |
| 66 NPIdentifier name, | |
| 67 NPVariant *result); | |
| 68 static bool NPSetProperty(NPObject *obj, | |
| 69 NPIdentifier name, | |
| 70 const NPVariant *value); | |
| 71 static bool NPRemoveProperty(NPObject *obj, | |
| 72 NPIdentifier name); | |
| 73 static bool NPNEnumerate(NPObject *obj, | |
| 74 NPIdentifier **value, | |
| 75 uint32_t *count); | |
| 76 static bool NPNConstruct(NPObject *npobj, | |
| 77 const NPVariant *args, | |
| 78 uint32_t arg_count, | |
| 79 NPVariant *result); | |
| 80 | |
| 81 // The next two functions are only called on NPObjects from the browser. | |
| 82 static bool NPNEvaluate(NPP npp, | |
| 83 NPObject *obj, | |
| 84 NPString *script, | |
| 85 NPVariant *result); | |
| 86 | |
| 87 static bool NPInvokePrivate(NPP npp, | |
| 88 NPObject *obj, | |
| 89 bool is_default, | |
| 90 NPIdentifier name, | |
| 91 const NPVariant *args, | |
| 92 uint32_t arg_count, | |
| 93 NPVariant *result); | |
| 94 | |
| 95 static NPObjectProxy* GetProxy(NPObject* object); | |
| 96 static const NPClass* npclass() { return &npclass_proxy_; } | |
| 97 | |
| 98 // NPObjectBase implementation. | |
| 99 NPObject* GetUnderlyingNPObject() override; | |
| 100 | |
| 101 IPC::Listener* GetChannelListener() override; | |
| 102 | |
| 103 private: | |
| 104 NPObjectProxy(NPChannelBase* channel, | |
| 105 int route_id, | |
| 106 int render_view_id, | |
| 107 const GURL& page_url); | |
| 108 | |
| 109 // IPC::Listener implementation: | |
| 110 bool OnMessageReceived(const IPC::Message& msg) override; | |
| 111 void OnChannelError() override; | |
| 112 | |
| 113 static NPObject* NPAllocate(NPP, NPClass*); | |
| 114 static void NPDeallocate(NPObject* npObj); | |
| 115 | |
| 116 // This function is only caled on NPObjects from the plugin. | |
| 117 static void NPPInvalidate(NPObject *obj); | |
| 118 static NPClass npclass_proxy_; | |
| 119 | |
| 120 scoped_refptr<NPChannelBase> channel_; | |
| 121 int route_id_; | |
| 122 int render_view_id_; | |
| 123 | |
| 124 // The url of the main frame hosting the plugin. | |
| 125 GURL page_url_; | |
| 126 }; | |
| 127 | |
| 128 } // namespace content | |
| 129 | |
| 130 #endif // CONTENT_CHILD_NPAPI_NPOBJECT_PROXY_H_ | |
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Chromium Code Reviews
Issue 1483733002:
Remove support for NPObjects. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master