src/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/npobject_var.h"
  15 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
  16 #include "content/renderer/pepper/plugin_module.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::NPObjectVar;
  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 NPObject* PepperWebPluginImpl::scriptableObject() {
 130   // Call through the plugin to get its instance object. The plugin should pass
 131   // us a reference which we release in destroy().
 132   if (instance_object_.type == PP_VARTYPE_UNDEFINED)
 133     instance_object_ = instance_->GetInstanceObject();
 134   // GetInstanceObject talked to the plugin which may have removed the instance
 135   // from the DOM, in which case instance_ would be NULL now.
 136   if (!instance_.get())
 137     return NULL;
 138
 139   scoped_refptr<NPObjectVar> object(NPObjectVar::FromPPVar(instance_object_));
 140   // If there's an InstanceObject, tell the Instance's MessageChannel to pass
 141   // any non-postMessage calls to it.
 142   if (object.get()) {
 143     instance_->message_channel().SetPassthroughObject(object->np_object());
 144   }
 145   NPObject* message_channel_np_object(instance_->message_channel().np_object());
 146   // The object is expected to be retained before it is returned.
 147   blink::WebBindings::retainObject(message_channel_np_object);
 148   return message_channel_np_object;
 149 }
 150
 151 NPP PepperWebPluginImpl::pluginNPP() { return instance_->instanceNPP(); }
 152
 153 bool PepperWebPluginImpl::getFormValue(WebString& value) { return false; }
 154
 155 void PepperWebPluginImpl::paint(WebCanvas* canvas, const WebRect& rect) {
 156   if (!instance_->FlashIsFullscreenOrPending())
 157     instance_->Paint(canvas, plugin_rect_, rect);
 158 }
 159
 160 void PepperWebPluginImpl::updateGeometry(
 161     const WebRect& window_rect,
 162     const WebRect& clip_rect,
 163     const WebVector<WebRect>& cut_outs_rects,
 164     bool is_visible) {
 165   plugin_rect_ = window_rect;
 166   if (!instance_->FlashIsFullscreenOrPending()) {
 167     std::vector<gfx::Rect> cut_outs;
 168     for (size_t i = 0; i < cut_outs_rects.size(); ++i)
 169       cut_outs.push_back(cut_outs_rects[i]);
 170     instance_->ViewChanged(plugin_rect_, clip_rect, cut_outs);
 171   }
 172 }
 173
 174 void PepperWebPluginImpl::updateFocus(bool focused) {
 175   instance_->SetWebKitFocus(focused);
 176 }
 177
 178 void PepperWebPluginImpl::updateVisibility(bool visible) {}
 179
 180 bool PepperWebPluginImpl::acceptsInputEvents() { return true; }
 181
 182 bool PepperWebPluginImpl::handleInputEvent(const blink::WebInputEvent& event,
 183                                            blink::WebCursorInfo& cursor_info) {
 184   if (instance_->FlashIsFullscreenOrPending())
 185     return false;
 186   return instance_->HandleInputEvent(event, &cursor_info);
 187 }
 188
 189 void PepperWebPluginImpl::didReceiveResponse(
 190     const blink::WebURLResponse& response) {
 191   DCHECK(!instance_->document_loader());
 192   instance_->HandleDocumentLoad(response);
 193 }
 194
 195 void PepperWebPluginImpl::didReceiveData(const char* data, int data_length) {
 196   blink::WebURLLoaderClient* document_loader = instance_->document_loader();
 197   if (document_loader)
 198     document_loader->didReceiveData(NULL, data, data_length, 0);
 199 }
 200
 201 void PepperWebPluginImpl::didFinishLoading() {
 202   blink::WebURLLoaderClient* document_loader = instance_->document_loader();
 203   if (document_loader)
 204     document_loader->didFinishLoading(
 205         NULL, 0.0, blink::WebURLLoaderClient::kUnknownEncodedDataLength);
 206 }
 207
 208 void PepperWebPluginImpl::didFailLoading(const blink::WebURLError& error) {
 209   blink::WebURLLoaderClient* document_loader = instance_->document_loader();
 210   if (document_loader)
 211     document_loader->didFail(NULL, error);
 212 }
 213
 214 void PepperWebPluginImpl::didFinishLoadingFrameRequest(const blink::WebURL& url,
 215                                                        void* notify_data) {}
 216
 217 void PepperWebPluginImpl::didFailLoadingFrameRequest(
 218     const blink::WebURL& url,
 219     void* notify_data,
 220     const blink::WebURLError& error) {}
 221
 222 bool PepperWebPluginImpl::hasSelection() const {
 223   return !selectionAsText().isEmpty();
 224 }
 225
 226 WebString PepperWebPluginImpl::selectionAsText() const {
 227   return instance_->GetSelectedText(false);
 228 }
 229
 230 WebString PepperWebPluginImpl::selectionAsMarkup() const {
 231   return instance_->GetSelectedText(true);
 232 }
 233
 234 WebURL PepperWebPluginImpl::linkAtPosition(const WebPoint& position) const {
 235   return GURL(instance_->GetLinkAtPosition(position));
 236 }
 237
 238 void PepperWebPluginImpl::setZoomLevel(double level, bool text_only) {
 239   instance_->Zoom(content::ZoomLevelToZoomFactor(level), text_only);
 240 }
 241
 242 bool PepperWebPluginImpl::startFind(const blink::WebString& search_text,
 243                                     bool case_sensitive,
 244                                     int identifier) {
 245   return instance_->StartFind(search_text, case_sensitive, identifier);
 246 }
 247
 248 void PepperWebPluginImpl::selectFindResult(bool forward) {
 249   instance_->SelectFindResult(forward);
 250 }
 251
 252 void PepperWebPluginImpl::stopFind() { instance_->StopFind(); }
 253
 254 bool PepperWebPluginImpl::supportsPaginatedPrint() {
 255   return instance_->SupportsPrintInterface();
 256 }
 257
 258 bool PepperWebPluginImpl::isPrintScalingDisabled() {
 259   return instance_->IsPrintScalingDisabled();
 260 }
 261
 262 int PepperWebPluginImpl::printBegin(const WebPrintParams& print_params) {
 263   return instance_->PrintBegin(print_params);
 264 }
 265
 266 bool PepperWebPluginImpl::printPage(int page_number, blink::WebCanvas* canvas) {
 267   return instance_->PrintPage(page_number, canvas);
 268 }
 269
 270 void PepperWebPluginImpl::printEnd() { return instance_->PrintEnd(); }
 271
 272 bool PepperWebPluginImpl::canRotateView() { return instance_->CanRotateView(); }
 273
 274 void PepperWebPluginImpl::rotateView(RotationType type) {
 275   instance_->RotateView(type);
 276 }
 277
 278 bool PepperWebPluginImpl::isPlaceholder() { return false; }
 279
 280 }  // namespace content