components/html_viewer/blink_platform_impl.cc

   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 "components/html_viewer/blink_platform_impl.h"
   6
   7 #include <cmath>
   8
   9 #include "base/command_line.h"
  10 #include "base/rand_util.h"
  11 #include "base/stl_util.h"
  12 #include "base/synchronization/waitable_event.h"
  13 #include "base/thread_task_runner_handle.h"
  14 #include "base/threading/platform_thread.h"
  15 #include "base/time/time.h"
  16 #include "base/trace_event/trace_event.h"
  17 #include "components/html_viewer/blink_resource_constants.h"
  18 #include "components/html_viewer/web_clipboard_impl.h"
  19 #include "components/html_viewer/web_cookie_jar_impl.h"
  20 #include "components/html_viewer/web_graphics_context_3d_command_buffer_impl.h"
  21 #include "components/html_viewer/web_socket_handle_impl.h"
  22 #include "components/html_viewer/web_url_loader_impl.h"
  23 #include "components/message_port/web_message_port_channel_impl.h"
  24 #include "components/mime_util/mime_util.h"
  25 #include "components/scheduler/child/webthread_impl_for_worker_scheduler.h"
  26 #include "components/scheduler/renderer/renderer_scheduler.h"
  27 #include "components/scheduler/renderer/webthread_impl_for_renderer_scheduler.h"
  28 #include "mojo/application/public/cpp/application_impl.h"
  29 #include "mojo/application/public/cpp/connect.h"
  30 #include "mojo/common/user_agent.h"
  31 #include "net/base/data_url.h"
  32 #include "net/base/ip_address_number.h"
  33 #include "net/base/net_errors.h"
  34 #include "net/base/net_util.h"
  35 #include "third_party/WebKit/public/platform/WebWaitableEvent.h"
  36 #include "ui/base/resource/resource_bundle.h"
  37 #include "ui/events/gestures/blink/web_gesture_curve_impl.h"
  38 #include "url/gurl.h"
  39
  40 namespace html_viewer {
  41 namespace {
  42
  43 // Allows overriding user agent scring.
  44 const char kUserAgentSwitch[] = "user-agent";
  45
  46 class WebWaitableEventImpl : public blink::WebWaitableEvent {
  47  public:
  48   WebWaitableEventImpl(ResetPolicy policy, InitialState state) {
  49     bool manual_reset = policy == ResetPolicy::Manual;
  50     bool initially_signaled = state == InitialState::Signaled;
  51     impl_.reset(new base::WaitableEvent(manual_reset, initially_signaled));
  52   }
  53   virtual ~WebWaitableEventImpl() {}
  54
  55   virtual void reset() { impl_->Reset(); }
  56   virtual void wait() { impl_->Wait(); }
  57   virtual void signal() { impl_->Signal(); }
  58
  59   base::WaitableEvent* impl() {
  60     return impl_.get();
  61   }
  62
  63  private:
  64   scoped_ptr<base::WaitableEvent> impl_;
  65   DISALLOW_COPY_AND_ASSIGN(WebWaitableEventImpl);
  66 };
  67
  68 }  // namespace
  69
  70 BlinkPlatformImpl::BlinkPlatformImpl(
  71     mojo::ApplicationImpl* app,
  72     scheduler::RendererScheduler* renderer_scheduler)
  73     : app_(app),
  74       main_thread_task_runner_(renderer_scheduler->DefaultTaskRunner()),
  75       main_thread_(new scheduler::WebThreadImplForRendererScheduler(
  76           renderer_scheduler)) {
  77   if (app) {
  78     mojo::URLRequestPtr request(mojo::URLRequest::New());
  79     request->url = mojo::String::From("mojo:network_service");
  80     scoped_ptr<mojo::ApplicationConnection> connection =
  81         app->ConnectToApplication(request.Pass());
  82     connection->ConnectToService(&web_socket_factory_);
  83     connection->ConnectToService(&url_loader_factory_);
  84
  85     mojo::CookieStorePtr cookie_store;
  86     connection->ConnectToService(&cookie_store);
  87     cookie_jar_.reset(new WebCookieJarImpl(cookie_store.Pass()));
  88
  89     mojo::ClipboardPtr clipboard;
  90     mojo::URLRequestPtr request2(mojo::URLRequest::New());
  91     request2->url = mojo::String::From("mojo:clipboard");
  92     app->ConnectToService(request2.Pass(), &clipboard);
  93     clipboard_.reset(new WebClipboardImpl(clipboard.Pass()));
  94   }
  95 }
  96
  97 BlinkPlatformImpl::~BlinkPlatformImpl() {
  98 }
  99
 100 blink::WebCookieJar* BlinkPlatformImpl::cookieJar() {
 101   return cookie_jar_.get();
 102 }
 103
 104 blink::WebClipboard* BlinkPlatformImpl::clipboard() {
 105   return clipboard_.get();
 106 }
 107
 108 blink::WebMimeRegistry* BlinkPlatformImpl::mimeRegistry() {
 109   return &mime_registry_;
 110 }
 111
 112 blink::WebThemeEngine* BlinkPlatformImpl::themeEngine() {
 113   return &theme_engine_;
 114 }
 115
 116 blink::WebString BlinkPlatformImpl::defaultLocale() {
 117   return blink::WebString::fromUTF8("en-US");
 118 }
 119
 120 blink::WebBlobRegistry* BlinkPlatformImpl::blobRegistry() {
 121   return &blob_registry_;
 122 }
 123
 124 double BlinkPlatformImpl::currentTime() {
 125   return base::Time::Now().ToDoubleT();
 126 }
 127
 128 double BlinkPlatformImpl::monotonicallyIncreasingTime() {
 129   return base::TimeTicks::Now().ToInternalValue() /
 130       static_cast<double>(base::Time::kMicrosecondsPerSecond);
 131 }
 132
 133 void BlinkPlatformImpl::cryptographicallyRandomValues(unsigned char* buffer,
 134                                                       size_t length) {
 135   base::RandBytes(buffer, length);
 136 }
 137
 138 bool BlinkPlatformImpl::isThreadedCompositingEnabled() {
 139   return true;
 140 }
 141
 142 blink::WebCompositorSupport* BlinkPlatformImpl::compositorSupport() {
 143   return &compositor_support_;
 144 }
 145
 146 uint32_t BlinkPlatformImpl::getUniqueIdForProcess() {
 147   // TODO(rickyz): Replace this with base::GetUniqueIdForProcess when that's
 148   // ready.
 149   return base::trace_event::TraceLog::GetInstance()->process_id();
 150 }
 151
 152 void BlinkPlatformImpl::createMessageChannel(
 153     blink::WebMessagePortChannel** channel1,
 154     blink::WebMessagePortChannel** channel2) {
 155   message_port::WebMessagePortChannelImpl::CreatePair(channel1, channel2);
 156 }
 157
 158 blink::WebScrollbarBehavior* BlinkPlatformImpl::scrollbarBehavior() {
 159   return &scrollbar_behavior_;
 160 }
 161
 162 const unsigned char* BlinkPlatformImpl::getTraceCategoryEnabledFlag(
 163     const char* category_name) {
 164   static const unsigned char buf[] = "*";
 165   return buf;
 166 }
 167
 168 blink::WebGraphicsContext3D*
 169 BlinkPlatformImpl::createOffscreenGraphicsContext3D(
 170     const blink::WebGraphicsContext3D::Attributes& attributes,
 171     blink::WebGraphicsContext3D* share_context) {
 172   return createOffscreenGraphicsContext3D(attributes, share_context, nullptr);
 173 }
 174
 175 blink::WebGraphicsContext3D*
 176 BlinkPlatformImpl::createOffscreenGraphicsContext3D(
 177     const blink::WebGraphicsContext3D::Attributes& attributes,
 178     blink::WebGraphicsContext3D* share_context,
 179     blink::WebGLInfo* gl_info) {
 180   return WebGraphicsContext3DCommandBufferImpl::CreateOffscreenContext(
 181       app_, GURL(attributes.topDocumentURL), attributes, share_context,
 182       gl_info);
 183 }
 184
 185 blink::WebGraphicsContext3D*
 186 BlinkPlatformImpl::createOffscreenGraphicsContext3D(
 187     const blink::WebGraphicsContext3D::Attributes& attributes) {
 188   return createOffscreenGraphicsContext3D(attributes, nullptr, nullptr);
 189 }
 190
 191 blink::WebGraphicsContext3DProvider*
 192 BlinkPlatformImpl::createSharedOffscreenGraphicsContext3DProvider() {
 193   return nullptr;
 194 }
 195
 196 blink::WebData BlinkPlatformImpl::loadResource(const char* resource) {
 197   for (size_t i = 0; i < arraysize(kDataResources); ++i) {
 198     if (!strcmp(resource, kDataResources[i].name)) {
 199       base::StringPiece data =
 200           ResourceBundle::GetSharedInstance().GetRawDataResourceForScale(
 201               kDataResources[i].id, ui::SCALE_FACTOR_100P);
 202       return blink::WebData(data.data(), data.size());
 203     }
 204   }
 205   NOTREACHED() << "Requested resource is unavailable: " << resource;
 206   return blink::WebData();
 207 }
 208
 209 blink::WebURLLoader* BlinkPlatformImpl::createURLLoader() {
 210   return new WebURLLoaderImpl(url_loader_factory_.get(), &blob_registry_);
 211 }
 212
 213 blink::WebSocketHandle* BlinkPlatformImpl::createWebSocketHandle() {
 214   return new WebSocketHandleImpl(web_socket_factory_.get());
 215 }
 216
 217 blink::WebString BlinkPlatformImpl::userAgent() {
 218   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 219   if (command_line->HasSwitch(kUserAgentSwitch)) {
 220     return blink::WebString::fromUTF8(
 221         command_line->GetSwitchValueASCII(kUserAgentSwitch));
 222   }
 223   return blink::WebString::fromUTF8(mojo::common::GetUserAgent());
 224 }
 225
 226 blink::WebData BlinkPlatformImpl::parseDataURL(
 227     const blink::WebURL& url,
 228     blink::WebString& mimetype_out,
 229     blink::WebString& charset_out) {
 230   std::string mimetype, charset, data;
 231   if (net::DataURL::Parse(url, &mimetype, &charset, &data) &&
 232       mime_util::IsSupportedMimeType(mimetype)) {
 233     mimetype_out = blink::WebString::fromUTF8(mimetype);
 234     charset_out = blink::WebString::fromUTF8(charset);
 235     return data;
 236   }
 237   return blink::WebData();
 238 }
 239
 240 blink::WebURLError BlinkPlatformImpl::cancelledError(const blink::WebURL& url)
 241     const {
 242   blink::WebURLError error;
 243   error.domain = blink::WebString::fromUTF8(net::kErrorDomain);
 244   error.reason = net::ERR_ABORTED;
 245   error.unreachableURL = url;
 246   error.staleCopyInCache = false;
 247   error.isCancellation = true;
 248   return error;
 249 }
 250
 251 bool BlinkPlatformImpl::isReservedIPAddress(
 252     const blink::WebString& host) const {
 253   net::IPAddressNumber address;
 254   if (!net::ParseURLHostnameToNumber(host.utf8(), &address))
 255     return false;
 256   return net::IsIPAddressReserved(address);
 257 }
 258
 259 blink::WebThread* BlinkPlatformImpl::createThread(const char* name) {
 260   scheduler::WebThreadImplForWorkerScheduler* thread =
 261       new scheduler::WebThreadImplForWorkerScheduler(name);
 262   thread->TaskRunner()->PostTask(
 263       FROM_HERE, base::Bind(&BlinkPlatformImpl::UpdateWebThreadTLS,
 264                             base::Unretained(this), thread));
 265   return thread;
 266 }
 267
 268 blink::WebThread* BlinkPlatformImpl::currentThread() {
 269   if (main_thread_->isCurrentThread())
 270     return main_thread_.get();
 271   return static_cast<blink::WebThread*>(current_thread_slot_.Get());
 272 }
 273
 274 void BlinkPlatformImpl::yieldCurrentThread() {
 275   base::PlatformThread::YieldCurrentThread();
 276 }
 277
 278 blink::WebWaitableEvent* BlinkPlatformImpl::createWaitableEvent(
 279     blink::WebWaitableEvent::ResetPolicy policy,
 280     blink::WebWaitableEvent::InitialState state) {
 281   return new WebWaitableEventImpl(policy, state);
 282 }
 283
 284 blink::WebWaitableEvent* BlinkPlatformImpl::waitMultipleEvents(
 285     const blink::WebVector<blink::WebWaitableEvent*>& web_events) {
 286   std::vector<base::WaitableEvent*> events;
 287   for (size_t i = 0; i < web_events.size(); ++i)
 288     events.push_back(static_cast<WebWaitableEventImpl*>(web_events[i])->impl());
 289   size_t idx = base::WaitableEvent::WaitMany(
 290       vector_as_array(&events), events.size());
 291   DCHECK_LT(idx, web_events.size());
 292   return web_events[idx];
 293 }
 294
 295 blink::WebGestureCurve* BlinkPlatformImpl::createFlingAnimationCurve(
 296     blink::WebGestureDevice device_source,
 297     const blink::WebFloatPoint& velocity,
 298     const blink::WebSize& cumulative_scroll) {
 299   const bool is_main_thread = true;
 300   return ui::WebGestureCurveImpl::CreateFromDefaultPlatformCurve(
 301              gfx::Vector2dF(velocity.x, velocity.y),
 302              gfx::Vector2dF(cumulative_scroll.width, cumulative_scroll.height),
 303              is_main_thread).release();
 304 }
 305
 306 blink::WebCrypto* BlinkPlatformImpl::crypto() {
 307   return &web_crypto_;
 308 }
 309
 310 blink::WebNotificationManager*
 311 BlinkPlatformImpl::notificationManager() {
 312   return &web_notification_manager_;
 313 }
 314
 315 void BlinkPlatformImpl::UpdateWebThreadTLS(blink::WebThread* thread) {
 316   DCHECK(!current_thread_slot_.Get());
 317   current_thread_slot_.Set(thread);
 318 }
 319
 320 }  // namespace html_viewer