content/renderer/pepper/pepper_webplugin_impl.cc

   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 "content/renderer/pepper/pepper_webplugin_impl.h"
   6
   7 #include <cmath>
   8
   9 #include "base/debug/crash_logging.h"
  10 #include "base/message_loop/message_loop.h"
  11 #include "content/public/common/page_zoom.h"
  12 #include "content/public/renderer/content_renderer_client.h"
  13 #include "content/renderer/pepper/message_channel.h"
  14 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
  15 #include "content/renderer/pepper/plugin_instance_throttler_impl.h"
  16 #include "content/renderer/pepper/plugin_module.h"
  17 #include "content/renderer/pepper/v8object_var.h"
  18 #include "content/renderer/render_frame_impl.h"
  19 #include "ppapi/shared_impl/ppapi_globals.h"
  20 #include "ppapi/shared_impl/var_tracker.h"
  21 #include "third_party/WebKit/public/platform/WebPoint.h"
  22 #include "third_party/WebKit/public/platform/WebRect.h"
  23 #include "third_party/WebKit/public/platform/WebSize.h"
  24 #include "third_party/WebKit/public/platform/WebURLLoaderClient.h"
  25 #include "third_party/WebKit/public/web/WebBindings.h"
  26 #include "third_party/WebKit/public/web/WebDocument.h"
  27 #include "third_party/WebKit/public/web/WebElement.h"
  28 #include "third_party/WebKit/public/web/WebFrame.h"
  29 #include "third_party/WebKit/public/web/WebPluginContainer.h"
  30 #include "third_party/WebKit/public/web/WebPluginParams.h"
  31 #include "third_party/WebKit/public/web/WebPrintParams.h"
  32 #include "third_party/WebKit/public/web/WebPrintPresetOptions.h"
  33 #include "third_party/WebKit/public/web/WebPrintScalingOption.h"
  34 #include "url/gurl.h"
  35
  36 using ppapi::V8ObjectVar;
  37 using blink::WebCanvas;
  38 using blink::WebPlugin;
  39 using blink::WebPluginContainer;
  40 using blink::WebPluginParams;
  41 using blink::WebPoint;
  42 using blink::WebPrintParams;
  43 using blink::WebRect;
  44 using blink::WebSize;
  45 using blink::WebString;
  46 using blink::WebURL;
  47 using blink::WebVector;
  48
  49 namespace content {
  50
  51 struct PepperWebPluginImpl::InitData {
  52   scoped_refptr<PluginModule> module;
  53   RenderFrameImpl* render_frame;
  54   std::vector<std::string> arg_names;
  55   std::vector<std::string> arg_values;
  56   GURL url;
  57 };
  58
  59 PepperWebPluginImpl::PepperWebPluginImpl(
  60     PluginModule* plugin_module,
  61     const WebPluginParams& params,
  62     RenderFrameImpl* render_frame,
  63     scoped_ptr<PluginInstanceThrottlerImpl> throttler)
  64     : init_data_(new InitData()),
  65       full_frame_(params.loadManually),
  66       throttler_(throttler.Pass()),
  67       instance_object_(PP_MakeUndefined()),
  68       container_(NULL) {
  69   DCHECK(plugin_module);
  70   init_data_->module = plugin_module;
  71   init_data_->render_frame = render_frame;
  72   for (size_t i = 0; i < params.attributeNames.size(); ++i) {
  73     init_data_->arg_names.push_back(params.attributeNames[i].utf8());
  74     init_data_->arg_values.push_back(params.attributeValues[i].utf8());
  75   }
  76   init_data_->url = params.url;
  77
  78   // Set subresource URL for crash reporting.
  79   base::debug::SetCrashKeyValue("subresource_url", init_data_->url.spec());
  80
  81   if (throttler_)
  82     throttler_->SetWebPlugin(this);
  83 }
  84
  85 PepperWebPluginImpl::~PepperWebPluginImpl() {}
  86
  87 blink::WebPluginContainer* PepperWebPluginImpl::container() const {
  88   return container_;
  89 }
  90
  91 bool PepperWebPluginImpl::initialize(WebPluginContainer* container) {
  92   // The plugin delegate may have gone away.
  93   instance_ = init_data_->module->CreateInstance(
  94       init_data_->render_frame, container, init_data_->url);
  95   if (!instance_.get())
  96     return false;
  97
  98   // Enable script objects for this plugin.
  99   container->allowScriptObjects();
 100
 101   bool success =
 102       instance_->Initialize(init_data_->arg_names, init_data_->arg_values,
 103                             full_frame_, throttler_.Pass());
 104   if (!success) {
 105     instance_->Delete();
 106     instance_ = NULL;
 107
 108     blink::WebPlugin* replacement_plugin =
 109         GetContentClient()->renderer()->CreatePluginReplacement(
 110             init_data_->render_frame, init_data_->module->path());
 111     if (!replacement_plugin || !replacement_plugin->initialize(container))
 112       return false;
 113
 114     container->setPlugin(replacement_plugin);
 115     return true;
 116   }
 117
 118   init_data_.reset();
 119   container_ = container;
 120   return true;
 121 }
 122
 123 void PepperWebPluginImpl::destroy() {
 124   // Tell |container_| to clear references to this plugin's script objects.
 125   if (container_)
 126     container_->clearScriptObjects();
 127
 128   if (instance_.get()) {
 129     ppapi::PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(instance_object_);
 130     instance_object_ = PP_MakeUndefined();
 131     instance_->Delete();
 132     instance_ = NULL;
 133   }
 134
 135   base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
 136 }
 137
 138 v8::Local<v8::Object> PepperWebPluginImpl::v8ScriptableObject(
 139       v8::Isolate* isolate) {
 140   // Call through the plugin to get its instance object. The plugin should pass
 141   // us a reference which we release in destroy().
 142   if (instance_object_.type == PP_VARTYPE_UNDEFINED)
 143     instance_object_ = instance_->GetInstanceObject(isolate);
 144   // GetInstanceObject talked to the plugin which may have removed the instance
 145   // from the DOM, in which case instance_ would be NULL now.
 146   if (!instance_.get())
 147     return v8::Local<v8::Object>();
 148
 149   scoped_refptr<V8ObjectVar> object_var(
 150       V8ObjectVar::FromPPVar(instance_object_));
 151   // If there's an InstanceObject, tell the Instance's MessageChannel to pass
 152   // any non-postMessage calls to it.
 153   if (object_var.get()) {
 154     MessageChannel* message_channel = instance_->message_channel();
 155     if (message_channel)
 156       message_channel->SetPassthroughObject(object_var->GetHandle());
 157   }
 158
 159   v8::Handle<v8::Object> result = instance_->GetMessageChannelObject();
 160   return result;
 161 }
 162
 163 bool PepperWebPluginImpl::getFormValue(WebString& value) { return false; }
 164
 165 void PepperWebPluginImpl::paint(WebCanvas* canvas, const WebRect& rect) {
 166   if (!instance_->FlashIsFullscreenOrPending())
 167     instance_->Paint(canvas, plugin_rect_, rect);
 168 }
 169
 170 void PepperWebPluginImpl::updateGeometry(
 171     const WebRect& window_rect,
 172     const WebRect& clip_rect,
 173     const WebRect& unobscured_rect,
 174     const WebVector<WebRect>& cut_outs_rects,
 175     bool is_visible) {
 176   plugin_rect_ = window_rect;
 177   if (!instance_->FlashIsFullscreenOrPending()) {
 178     std::vector<gfx::Rect> cut_outs;
 179     for (size_t i = 0; i < cut_outs_rects.size(); ++i)
 180       cut_outs.push_back(cut_outs_rects[i]);
 181     instance_->ViewChanged(plugin_rect_, clip_rect, unobscured_rect, cut_outs);
 182   }
 183 }
 184
 185 void PepperWebPluginImpl::updateFocus(bool focused,
 186                                       blink::WebFocusType focus_type) {
 187   instance_->SetWebKitFocus(focused);
 188 }
 189
 190 void PepperWebPluginImpl::updateVisibility(bool visible) {}
 191
 192 bool PepperWebPluginImpl::acceptsInputEvents() { return true; }
 193
 194 bool PepperWebPluginImpl::handleInputEvent(const blink::WebInputEvent& event,
 195                                            blink::WebCursorInfo& cursor_info) {
 196   if (instance_->FlashIsFullscreenOrPending())
 197     return false;
 198   return instance_->HandleInputEvent(event, &cursor_info);
 199 }
 200
 201 void PepperWebPluginImpl::didReceiveResponse(
 202     const blink::WebURLResponse& response) {
 203   DCHECK(!instance_->document_loader());
 204   instance_->HandleDocumentLoad(response);
 205 }
 206
 207 void PepperWebPluginImpl::didReceiveData(const char* data, int data_length) {
 208   blink::WebURLLoaderClient* document_loader = instance_->document_loader();
 209   if (document_loader)
 210     document_loader->didReceiveData(NULL, data, data_length, 0);
 211 }
 212
 213 void PepperWebPluginImpl::didFinishLoading() {
 214   blink::WebURLLoaderClient* document_loader = instance_->document_loader();
 215   if (document_loader)
 216     document_loader->didFinishLoading(
 217         NULL, 0.0, blink::WebURLLoaderClient::kUnknownEncodedDataLength);
 218 }
 219
 220 void PepperWebPluginImpl::didFailLoading(const blink::WebURLError& error) {
 221   blink::WebURLLoaderClient* document_loader = instance_->document_loader();
 222   if (document_loader)
 223     document_loader->didFail(NULL, error);
 224 }
 225
 226 void PepperWebPluginImpl::didFinishLoadingFrameRequest(const blink::WebURL& url,
 227                                                        void* notify_data) {}
 228
 229 void PepperWebPluginImpl::didFailLoadingFrameRequest(
 230     const blink::WebURL& url,
 231     void* notify_data,
 232     const blink::WebURLError& error) {}
 233
 234 bool PepperWebPluginImpl::hasSelection() const {
 235   return !selectionAsText().isEmpty();
 236 }
 237
 238 WebString PepperWebPluginImpl::selectionAsText() const {
 239   return instance_->GetSelectedText(false);
 240 }
 241
 242 WebString PepperWebPluginImpl::selectionAsMarkup() const {
 243   return instance_->GetSelectedText(true);
 244 }
 245
 246 WebURL PepperWebPluginImpl::linkAtPosition(const WebPoint& position) const {
 247   return GURL(instance_->GetLinkAtPosition(position));
 248 }
 249
 250 void PepperWebPluginImpl::setZoomLevel(double level, bool text_only) {
 251   instance_->Zoom(content::ZoomLevelToZoomFactor(level), text_only);
 252 }
 253
 254 bool PepperWebPluginImpl::startFind(const blink::WebString& search_text,
 255                                     bool case_sensitive,
 256                                     int identifier) {
 257   return instance_->StartFind(search_text, case_sensitive, identifier);
 258 }
 259
 260 void PepperWebPluginImpl::selectFindResult(bool forward) {
 261   instance_->SelectFindResult(forward);
 262 }
 263
 264 void PepperWebPluginImpl::stopFind() { instance_->StopFind(); }
 265
 266 bool PepperWebPluginImpl::supportsPaginatedPrint() {
 267   return instance_->SupportsPrintInterface();
 268 }
 269
 270 bool PepperWebPluginImpl::isPrintScalingDisabled() {
 271   return instance_->IsPrintScalingDisabled();
 272 }
 273
 274 int PepperWebPluginImpl::printBegin(const WebPrintParams& print_params) {
 275   return instance_->PrintBegin(print_params);
 276 }
 277
 278 bool PepperWebPluginImpl::printPage(int page_number, blink::WebCanvas* canvas) {
 279   return instance_->PrintPage(page_number, canvas);
 280 }
 281
 282 void PepperWebPluginImpl::printEnd() { return instance_->PrintEnd(); }
 283
 284 bool PepperWebPluginImpl::getPrintPresetOptionsFromDocument(
 285     blink::WebPrintPresetOptions* preset_options) {
 286   return instance_->GetPrintPresetOptionsFromDocument(preset_options);
 287 }
 288
 289 bool PepperWebPluginImpl::canRotateView() { return instance_->CanRotateView(); }
 290
 291 void PepperWebPluginImpl::rotateView(RotationType type) {
 292   instance_->RotateView(type);
 293 }
 294
 295 bool PepperWebPluginImpl::isPlaceholder() { return false; }
 296
 297 }  // namespace content