ppapi/proxy/ppp_text_input_proxy.cc

   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 "ppapi/proxy/ppp_text_input_proxy.h"
   6
   7 #include "ppapi/c/dev/ppp_text_input_dev.h"
   8 #include "ppapi/proxy/host_dispatcher.h"
   9 #include "ppapi/proxy/ppapi_messages.h"
  10 #include "ppapi/shared_impl/proxy_lock.h"
  11
  12 namespace ppapi {
  13 namespace proxy {
  14
  15 namespace {
  16
  17 void RequestSurroundingText(PP_Instance instance,
  18                             uint32_t desired_number_of_characters) {
  19   proxy::HostDispatcher* dispatcher =
  20       proxy::HostDispatcher::GetForInstance(instance);
  21   if (!dispatcher) {
  22     // The dispatcher should always be valid.
  23     NOTREACHED();
  24     return;
  25   }
  26
  27   dispatcher->Send(new PpapiMsg_PPPTextInput_RequestSurroundingText(
  28       API_ID_PPP_TEXT_INPUT, instance, desired_number_of_characters));
  29 }
  30
  31 const PPP_TextInput_Dev g_ppp_text_input_thunk = {
  32   &RequestSurroundingText
  33 };
  34
  35 }  // namespace
  36
  37 // static
  38 const PPP_TextInput_Dev* PPP_TextInput_Proxy::GetProxyInterface() {
  39   return &g_ppp_text_input_thunk;
  40 }
  41
  42 PPP_TextInput_Proxy::PPP_TextInput_Proxy(Dispatcher* dispatcher)
  43     : InterfaceProxy(dispatcher),
  44       ppp_text_input_impl_(NULL) {
  45   if (dispatcher->IsPlugin()) {
  46     ppp_text_input_impl_ = static_cast<const PPP_TextInput_Dev*>(
  47         dispatcher->local_get_interface()(PPP_TEXTINPUT_DEV_INTERFACE));
  48   }
  49 }
  50
  51 PPP_TextInput_Proxy::~PPP_TextInput_Proxy() {
  52 }
  53
  54 bool PPP_TextInput_Proxy::OnMessageReceived(const IPC::Message& msg) {
  55   bool handled = true;
  56   IPC_BEGIN_MESSAGE_MAP(PPP_TextInput_Proxy, msg)
  57     IPC_MESSAGE_HANDLER(PpapiMsg_PPPTextInput_RequestSurroundingText,
  58                         OnMsgRequestSurroundingText)
  59     IPC_MESSAGE_UNHANDLED(handled = false)
  60   IPC_END_MESSAGE_MAP()
  61   return handled;
  62 }
  63
  64 void PPP_TextInput_Proxy::OnMsgRequestSurroundingText(
  65     PP_Instance instance, uint32_t desired_number_of_characters) {
  66   if (ppp_text_input_impl_) {
  67     CallWhileUnlocked(ppp_text_input_impl_->RequestSurroundingText,
  68                       instance, desired_number_of_characters);
  69   }
  70 }
  71
  72 }  // namespace proxy
  73 }  // namespace ppapi