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