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
12namespace ppapi {
13namespace proxy {
14
15namespace {
16
17#if !defined(OS_NACL)
18void RequestSurroundingText(PP_Instance instance,
19                            uint32_t desired_number_of_characters) {
20  proxy::HostDispatcher* dispatcher =
21      proxy::HostDispatcher::GetForInstance(instance);
22  if (!dispatcher) {
23    // The dispatcher should always be valid.
24    NOTREACHED();
25    return;
26  }
27
28  dispatcher->Send(new PpapiMsg_PPPTextInput_RequestSurroundingText(
29      API_ID_PPP_TEXT_INPUT, instance, desired_number_of_characters));
30}
31
32const PPP_TextInput_Dev g_ppp_text_input_thunk = {
33  &RequestSurroundingText
34};
35#else
36// The NaCl plugin doesn't need the host side interface - stub it out.
37static const PPP_TextInput_Dev g_ppp_text_input_thunk = {};
38#endif  // !defined(OS_NACL)
39
40}  // namespace
41
42// static
43const PPP_TextInput_Dev* PPP_TextInput_Proxy::GetProxyInterface() {
44  return &g_ppp_text_input_thunk;
45}
46
47PPP_TextInput_Proxy::PPP_TextInput_Proxy(Dispatcher* dispatcher)
48    : InterfaceProxy(dispatcher),
49      ppp_text_input_impl_(NULL) {
50  if (dispatcher->IsPlugin()) {
51    ppp_text_input_impl_ = static_cast<const PPP_TextInput_Dev*>(
52        dispatcher->local_get_interface()(PPP_TEXTINPUT_DEV_INTERFACE));
53  }
54}
55
56PPP_TextInput_Proxy::~PPP_TextInput_Proxy() {
57}
58
59bool PPP_TextInput_Proxy::OnMessageReceived(const IPC::Message& msg) {
60  if (!dispatcher()->IsPlugin())
61    return false;
62
63  bool handled = true;
64  IPC_BEGIN_MESSAGE_MAP(PPP_TextInput_Proxy, msg)
65    IPC_MESSAGE_HANDLER(PpapiMsg_PPPTextInput_RequestSurroundingText,
66                        OnMsgRequestSurroundingText)
67    IPC_MESSAGE_UNHANDLED(handled = false)
68  IPC_END_MESSAGE_MAP()
69  return handled;
70}
71
72void PPP_TextInput_Proxy::OnMsgRequestSurroundingText(
73    PP_Instance instance, uint32_t desired_number_of_characters) {
74  if (ppp_text_input_impl_) {
75    CallWhileUnlocked(ppp_text_input_impl_->RequestSurroundingText,
76                      instance, desired_number_of_characters);
77  }
78}
79
80}  // namespace proxy
81}  // namespace ppapi
82