1// Copyright 2014 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/shell/renderer/ipc_echo.h"
6
7#include "base/logging.h"
8#include "content/shell/common/shell_messages.h"
9#include "content/shell/renderer/binding_helpers.h"
10#include "gin/object_template_builder.h"
11#include "gin/wrappable.h"
12#include "ipc/ipc_sender.h"
13#include "third_party/WebKit/public/web/WebDOMCustomEvent.h"
14#include "third_party/WebKit/public/web/WebDOMEvent.h"
15#include "third_party/WebKit/public/web/WebSerializedScriptValue.h"
16
17namespace content {
18
19class IPCEchoBindings : public gin::Wrappable<IPCEchoBindings> {
20public:
21  static gin::WrapperInfo kWrapperInfo;
22  static void Install(base::WeakPtr<IPCEcho> echo, blink::WebFrame* frame);
23
24  explicit IPCEchoBindings(base::WeakPtr<IPCEcho>);
25
26  void RequestEcho(int id, int size);
27  int GetLastEchoId() const;
28  int GetLastEchoSize() const;
29
30private:
31  virtual gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
32      v8::Isolate*) OVERRIDE;
33
34  base::WeakPtr<IPCEcho> native_;
35};
36
37IPCEchoBindings::IPCEchoBindings(base::WeakPtr<IPCEcho> native)
38    : native_(native) {
39}
40
41void IPCEchoBindings::RequestEcho(int id, int size) {
42  if (!native_)
43    return;
44  native_->RequestEcho(id, size);
45}
46
47int IPCEchoBindings::GetLastEchoId() const {
48  if (!native_)
49    return 0;
50  return native_->last_echo_id();
51}
52
53int IPCEchoBindings::GetLastEchoSize() const {
54  if (!native_)
55    return 0;
56  return native_->last_echo_size();
57}
58
59gin::WrapperInfo IPCEchoBindings::kWrapperInfo = {
60    gin::kEmbedderNativeGin };
61
62gin::ObjectTemplateBuilder IPCEchoBindings::GetObjectTemplateBuilder(
63    v8::Isolate* isolate) {
64  return gin::Wrappable<IPCEchoBindings>::GetObjectTemplateBuilder(isolate)
65      .SetMethod("requestEcho",
66                 &IPCEchoBindings::RequestEcho)
67      .SetProperty("lastEchoId",
68                   &IPCEchoBindings::GetLastEchoId)
69      .SetProperty("lastEchoSize",
70                   &IPCEchoBindings::GetLastEchoSize);
71}
72
73// static
74void IPCEchoBindings::Install(base::WeakPtr<IPCEcho> echo,
75                              blink::WebFrame* frame) {
76  std::vector<std::string> names;
77  names.push_back("ipcEcho");
78  return InstallAsWindowProperties(
79      new IPCEchoBindings(echo), frame, names);
80}
81
82IPCEcho::IPCEcho(blink::WebDocument document,
83                 IPC::Sender* sender,
84                 int routing_id)
85    : document_(document), sender_(sender), routing_id_(routing_id),
86      last_echo_id_(0),
87      weak_factory_(this) {
88}
89
90IPCEcho::~IPCEcho() {
91}
92
93void IPCEcho::RequestEcho(int id, int size) {
94  sender_->Send(new ShellViewHostMsg_EchoPing(
95      routing_id_, id, std::string(size, '*')));
96}
97
98void IPCEcho::DidRespondEcho(int id, int size) {
99  last_echo_id_ = id;
100  last_echo_size_ = size;
101  blink::WebString eventName = blink::WebString::fromUTF8("CustomEvent");
102  blink::WebString eventType = blink::WebString::fromUTF8("pong");
103  blink::WebDOMEvent event = document_.createEvent(eventName);
104  event.to<blink::WebDOMCustomEvent>().initCustomEvent(
105      eventType, false, false, blink::WebSerializedScriptValue());
106  document_.dispatchEvent(event);
107}
108
109void IPCEcho::Install(blink::WebFrame* frame) {
110  IPCEchoBindings::Install(weak_factory_.GetWeakPtr(), frame);
111}
112
113}  // namespace content
114