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.
4
5 #include "content/renderer/pepper/host_dispatcher_wrapper.h"
6
7 #include "content/common/view_messages.h"
8 #include "content/renderer/pepper/pepper_hung_plugin_filter.h"
9 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
10 #include "content/renderer/pepper/pepper_proxy_channel_delegate_impl.h"
11 #include "content/renderer/pepper/plugin_module.h"
12 #include "content/renderer/pepper/renderer_ppapi_host_impl.h"
13 #include "content/renderer/pepper/renderer_restrict_dispatch_group.h"
14 #include "content/renderer/render_frame_impl.h"
15
16 namespace content {
17
HostDispatcherWrapper(PluginModule * module,base::ProcessId peer_pid,int plugin_child_id,const ppapi::PpapiPermissions & perms,bool is_external)18 HostDispatcherWrapper::HostDispatcherWrapper(
19 PluginModule* module,
20 base::ProcessId peer_pid,
21 int plugin_child_id,
22 const ppapi::PpapiPermissions& perms,
23 bool is_external)
24 : module_(module),
25 peer_pid_(peer_pid),
26 plugin_child_id_(plugin_child_id),
27 permissions_(perms),
28 is_external_(is_external) {}
29
~HostDispatcherWrapper()30 HostDispatcherWrapper::~HostDispatcherWrapper() {}
31
Init(const IPC::ChannelHandle & channel_handle,PP_GetInterface_Func local_get_interface,const ppapi::Preferences & preferences,scoped_refptr<PepperHungPluginFilter> filter)32 bool HostDispatcherWrapper::Init(const IPC::ChannelHandle& channel_handle,
33 PP_GetInterface_Func local_get_interface,
34 const ppapi::Preferences& preferences,
35 scoped_refptr<PepperHungPluginFilter> filter) {
36 if (channel_handle.name.empty())
37 return false;
38
39 #if defined(OS_POSIX)
40 DCHECK_NE(-1, channel_handle.socket.fd);
41 if (channel_handle.socket.fd == -1)
42 return false;
43 #endif
44
45 dispatcher_delegate_.reset(new PepperProxyChannelDelegateImpl);
46 dispatcher_.reset(new ppapi::proxy::HostDispatcher(
47 module_->pp_module(), local_get_interface, permissions_));
48 // The HungPluginFilter needs to know when we are blocked on a sync message
49 // to the plugin. Note the filter outlives the dispatcher, so there is no
50 // need to remove it as an observer.
51 dispatcher_->AddSyncMessageStatusObserver(filter.get());
52 // Guarantee the hung_plugin_filter_ outlives |dispatcher_|.
53 hung_plugin_filter_ = filter;
54
55 if (!dispatcher_->InitHostWithChannel(dispatcher_delegate_.get(),
56 peer_pid_,
57 channel_handle,
58 true, // Client.
59 preferences)) {
60 dispatcher_.reset();
61 dispatcher_delegate_.reset();
62 return false;
63 }
64 // HungPluginFilter needs to listen for some messages on the IO thread.
65 dispatcher_->AddIOThreadMessageFilter(filter);
66
67 dispatcher_->channel()->SetRestrictDispatchChannelGroup(
68 kRendererRestrictDispatchGroup_Pepper);
69 return true;
70 }
71
GetProxiedInterface(const char * name)72 const void* HostDispatcherWrapper::GetProxiedInterface(const char* name) {
73 return dispatcher_->GetProxiedInterface(name);
74 }
75
AddInstance(PP_Instance instance)76 void HostDispatcherWrapper::AddInstance(PP_Instance instance) {
77 ppapi::proxy::HostDispatcher::SetForInstance(instance, dispatcher_.get());
78
79 RendererPpapiHostImpl* host =
80 RendererPpapiHostImpl::GetForPPInstance(instance);
81 // TODO(brettw) remove this null check when the old-style pepper-based
82 // browser tag is removed from this file. Getting this notification should
83 // always give us an instance we can find in the map otherwise, but that
84 // isn't true for browser tag support.
85 if (host) {
86 RenderFrame* render_frame = host->GetRenderFrameForInstance(instance);
87 PepperPluginInstance* plugin_instance = host->GetPluginInstance(instance);
88 render_frame->Send(new ViewHostMsg_DidCreateOutOfProcessPepperInstance(
89 plugin_child_id_,
90 instance,
91 PepperRendererInstanceData(
92 0, // The render process id will be supplied in the browser.
93 render_frame->GetRoutingID(),
94 host->GetDocumentURL(instance),
95 plugin_instance->GetPluginURL()),
96 is_external_));
97 }
98 }
99
RemoveInstance(PP_Instance instance)100 void HostDispatcherWrapper::RemoveInstance(PP_Instance instance) {
101 ppapi::proxy::HostDispatcher::RemoveForInstance(instance);
102
103 RendererPpapiHostImpl* host =
104 RendererPpapiHostImpl::GetForPPInstance(instance);
105 // TODO(brettw) remove null check as described in AddInstance.
106 if (host) {
107 RenderFrame* render_frame = host->GetRenderFrameForInstance(instance);
108 if (render_frame) {
109 render_frame->Send(new ViewHostMsg_DidDeleteOutOfProcessPepperInstance(
110 plugin_child_id_, instance, is_external_));
111 }
112 }
113 }
114
115 } // namespace content
116