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      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_view_impl.h"
     15 
     16 namespace content {
     17 
     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 }
     30 
     31 HostDispatcherWrapper::~HostDispatcherWrapper() {
     32 }
     33 
     34 bool HostDispatcherWrapper::Init(const IPC::ChannelHandle& channel_handle,
     35                                  PP_GetInterface_Func local_get_interface,
     36                                  const ppapi::Preferences& preferences,
     37                                  PepperHungPluginFilter* filter) {
     38   if (channel_handle.name.empty())
     39     return false;
     40 
     41 #if defined(OS_POSIX)
     42   DCHECK_NE(-1, channel_handle.socket.fd);
     43   if (channel_handle.socket.fd == -1)
     44     return false;
     45 #endif
     46 
     47   dispatcher_delegate_.reset(new PepperProxyChannelDelegateImpl);
     48   dispatcher_.reset(new ppapi::proxy::HostDispatcher(
     49       module_->pp_module(), local_get_interface, filter, permissions_));
     50 
     51   if (!dispatcher_->InitHostWithChannel(dispatcher_delegate_.get(),
     52                                         peer_pid_,
     53                                         channel_handle,
     54                                         true,  // Client.
     55                                         preferences)) {
     56     dispatcher_.reset();
     57     dispatcher_delegate_.reset();
     58     return false;
     59   }
     60   dispatcher_->channel()->SetRestrictDispatchChannelGroup(
     61       kRendererRestrictDispatchGroup_Pepper);
     62   return true;
     63 }
     64 
     65 const void* HostDispatcherWrapper::GetProxiedInterface(const char* name) {
     66   return dispatcher_->GetProxiedInterface(name);
     67 }
     68 
     69 void HostDispatcherWrapper::AddInstance(PP_Instance instance) {
     70   ppapi::proxy::HostDispatcher::SetForInstance(instance, dispatcher_.get());
     71 
     72   RendererPpapiHostImpl* host =
     73       RendererPpapiHostImpl::GetForPPInstance(instance);
     74   // TODO(brettw) remove this null check when the old-style pepper-based
     75   // browser tag is removed from this file. Getting this notification should
     76   // always give us an instance we can find in the map otherwise, but that
     77   // isn't true for browser tag support.
     78   if (host) {
     79     RenderView* render_view = host->GetRenderViewForInstance(instance);
     80     PepperPluginInstance* plugin_instance = host->GetPluginInstance(instance);
     81     render_view->Send(new ViewHostMsg_DidCreateOutOfProcessPepperInstance(
     82         plugin_child_id_,
     83         instance,
     84         PepperRendererInstanceData(
     85             0,  // The render process id will be supplied in the browser.
     86             render_view->GetRoutingID(),
     87             host->GetDocumentURL(instance),
     88             plugin_instance->GetPluginURL()),
     89         is_external_));
     90   }
     91 }
     92 
     93 void HostDispatcherWrapper::RemoveInstance(PP_Instance instance) {
     94   ppapi::proxy::HostDispatcher::RemoveForInstance(instance);
     95 
     96   RendererPpapiHostImpl* host =
     97       RendererPpapiHostImpl::GetForPPInstance(instance);
     98   // TODO(brettw) remove null check as described in AddInstance.
     99   if (host) {
    100     RenderView* render_view = host->GetRenderViewForInstance(instance);
    101     render_view->Send(new ViewHostMsg_DidDeleteOutOfProcessPepperInstance(
    102         plugin_child_id_,
    103         instance,
    104         is_external_));
    105   }
    106 }
    107 
    108 }  // namespace content
    109