1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/command_line.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/message_loop/message_loop.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread.h"
#include "gin/public/isolate_holder.h"
#include "mojo/application/application_runner_chromium.h"
#include "mojo/services/content_handler/public/interfaces/content_handler.mojom.h"
#include "mojo/services/html_viewer/html_document.h"
#include "mojo/services/html_viewer/mojo_blink_platform_impl.h"
#include "mojo/services/html_viewer/webmediaplayer_factory.h"
#include "mojo/services/network/public/interfaces/network_service.mojom.h"
#include "third_party/WebKit/public/web/WebKit.h"
#include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
#include "third_party/mojo/src/mojo/public/c/system/main.h"
#include "third_party/mojo/src/mojo/public/cpp/application/application_connection.h"
#include "third_party/mojo/src/mojo/public/cpp/application/application_delegate.h"
#include "third_party/mojo/src/mojo/public/cpp/application/application_impl.h"
#include "third_party/mojo/src/mojo/public/cpp/application/connect.h"
#include "third_party/mojo/src/mojo/public/cpp/application/interface_factory_impl.h"
#include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
#if !defined(COMPONENT_BUILD)
#include "base/i18n/icu_util.h"
#include "base/path_service.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/ui_base_paths.h"
#endif
using mojo::ApplicationConnection;
using mojo::Array;
using mojo::BindToRequest;
using mojo::ContentHandler;
using mojo::InterfaceRequest;
using mojo::ServiceProvider;
using mojo::ServiceProviderPtr;
using mojo::ShellPtr;
using mojo::String;
using mojo::URLLoaderPtr;
using mojo::URLResponsePtr;
namespace html_viewer {
// Switches for html_viewer to be used with "--args-for". For example:
// --args-for='mojo:html_viewer --enable-mojo-media-renderer'
// Enable MediaRenderer in media pipeline instead of using the internal
// media::Renderer implementation.
const char kEnableMojoMediaRenderer[] = "enable-mojo-media-renderer";
// Disables support for (unprefixed) Encrypted Media Extensions.
const char kDisableEncryptedMedia[] = "disable-encrypted-media";
class HTMLViewer;
class HTMLViewerApplication : public mojo::Application {
public:
HTMLViewerApplication(InterfaceRequest<Application> request,
URLResponsePtr response,
scoped_refptr<base::MessageLoopProxy> compositor_thread,
WebMediaPlayerFactory* web_media_player_factory)
: url_(response->url),
binding_(this, request.Pass()),
initial_response_(response.Pass()),
compositor_thread_(compositor_thread),
web_media_player_factory_(web_media_player_factory) {}
void Initialize(ShellPtr shell, Array<String> args) override {
ServiceProviderPtr service_provider;
shell_ = shell.Pass();
shell_->ConnectToApplication("mojo:network_service",
GetProxy(&service_provider), nullptr);
ConnectToService(service_provider.get(), &network_service_);
}
void AcceptConnection(const String& requestor_url,
InterfaceRequest<ServiceProvider> services,
ServiceProviderPtr exposed_services) override {
if (initial_response_) {
OnResponseReceived(URLLoaderPtr(), services.Pass(),
initial_response_.Pass());
} else {
URLLoaderPtr loader;
network_service_->CreateURLLoader(GetProxy(&loader));
mojo::URLRequestPtr request(mojo::URLRequest::New());
request->url = url_;
request->auto_follow_redirects = true;
// |loader| will be pass to the OnResponseReceived method through a
// callback. Because order of evaluation is undefined, a reference to the
// raw pointer is needed.
mojo::URLLoader* raw_loader = loader.get();
raw_loader->Start(
request.Pass(),
base::Bind(&HTMLViewerApplication::OnResponseReceived,
base::Unretained(this), base::Passed(&loader),
base::Passed(&services)));
}
}
void RequestQuit() override {}
private:
void OnResponseReceived(URLLoaderPtr loader,
InterfaceRequest<ServiceProvider> services,
URLResponsePtr response) {
new HTMLDocument(services.Pass(), response.Pass(), shell_.get(),
compositor_thread_, web_media_player_factory_);
}
String url_;
mojo::StrongBinding<mojo::Application> binding_;
ShellPtr shell_;
mojo::NetworkServicePtr network_service_;
URLResponsePtr initial_response_;
scoped_refptr<base::MessageLoopProxy> compositor_thread_;
WebMediaPlayerFactory* web_media_player_factory_;
};
class ContentHandlerImpl : public mojo::InterfaceImpl<ContentHandler> {
public:
ContentHandlerImpl(scoped_refptr<base::MessageLoopProxy> compositor_thread,
WebMediaPlayerFactory* web_media_player_factory)
: compositor_thread_(compositor_thread),
web_media_player_factory_(web_media_player_factory) {}
~ContentHandlerImpl() override {}
private:
// Overridden from ContentHandler:
void StartApplication(InterfaceRequest<mojo::Application> request,
URLResponsePtr response) override {
new HTMLViewerApplication(request.Pass(),
response.Pass(),
compositor_thread_,
web_media_player_factory_);
}
scoped_refptr<base::MessageLoopProxy> compositor_thread_;
WebMediaPlayerFactory* web_media_player_factory_;
DISALLOW_COPY_AND_ASSIGN(ContentHandlerImpl);
};
class HTMLViewer : public mojo::ApplicationDelegate,
public mojo::InterfaceFactory<ContentHandler> {
public:
HTMLViewer() : compositor_thread_("compositor thread") {}
~HTMLViewer() override { blink::shutdown(); }
private:
// Overridden from ApplicationDelegate:
void Initialize(mojo::ApplicationImpl* app) override {
blink_platform_.reset(new MojoBlinkPlatformImpl(app));
#if defined(V8_USE_EXTERNAL_STARTUP_DATA)
gin::IsolateHolder::LoadV8Snapshot();
#endif
blink::initialize(blink_platform_.get());
#if !defined(COMPONENT_BUILD)
base::i18n::InitializeICU();
ui::RegisterPathProvider();
base::FilePath ui_test_pak_path;
CHECK(PathService::Get(ui::UI_TEST_PAK, &ui_test_pak_path));
ui::ResourceBundle::InitSharedInstanceWithPakPath(ui_test_pak_path);
#endif
base::CommandLine::StringVector command_line_args;
#if defined(OS_WIN)
for (const auto& arg : app->args())
command_line_args.push_back(base::UTF8ToUTF16(arg));
#elif defined(OS_POSIX)
command_line_args = app->args();
#endif
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
command_line->InitFromArgv(command_line_args);
logging::LoggingSettings settings;
settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
logging::InitLogging(settings);
// Display process ID, thread ID and timestamp in logs.
logging::SetLogItems(true, true, true, false);
bool enable_mojo_media_renderer =
command_line->HasSwitch(kEnableMojoMediaRenderer);
if (command_line->HasSwitch(kDisableEncryptedMedia))
blink::WebRuntimeFeatures::enableEncryptedMedia(false);
compositor_thread_.Start();
web_media_player_factory_.reset(new WebMediaPlayerFactory(
compositor_thread_.message_loop_proxy(), enable_mojo_media_renderer));
}
bool ConfigureIncomingConnection(ApplicationConnection* connection) override {
connection->AddService(this);
return true;
}
// Overridden from InterfaceFactory<ContentHandler>
void Create(ApplicationConnection* connection,
mojo::InterfaceRequest<ContentHandler> request) override {
BindToRequest(
new ContentHandlerImpl(compositor_thread_.message_loop_proxy(),
web_media_player_factory_.get()),
&request);
}
scoped_ptr<MojoBlinkPlatformImpl> blink_platform_;
base::Thread compositor_thread_;
scoped_ptr<WebMediaPlayerFactory> web_media_player_factory_;
DISALLOW_COPY_AND_ASSIGN(HTMLViewer);
};
} // namespace html_viewer
MojoResult MojoMain(MojoHandle shell_handle) {
mojo::ApplicationRunnerChromium runner(new html_viewer::HTMLViewer);
return runner.Run(shell_handle);
}
|
