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