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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "webkit/plugins/ppapi/npapi_glue.h" | 5 #include "webkit/plugins/ppapi/npapi_glue.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
| 9 #include "base/string_util.h" | 9 #include "base/string_util.h" |
| 10 #include "webkit/plugins/ppapi/host_globals.h" | |
| 11 #include "webkit/plugins/ppapi/npobject_var.h" | 10 #include "webkit/plugins/ppapi/npobject_var.h" |
| 12 #include "webkit/plugins/ppapi/plugin_module.h" | 11 #include "webkit/plugins/ppapi/plugin_module.h" |
| 13 #include "webkit/plugins/ppapi/plugin_object.h" | 12 #include "webkit/plugins/ppapi/plugin_object.h" |
| 14 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h" | 13 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h" |
| 15 #include "webkit/plugins/ppapi/resource_tracker.h" | 14 #include "webkit/plugins/ppapi/resource_tracker.h" |
| 16 #include "third_party/npapi/bindings/npapi.h" | 15 #include "third_party/npapi/bindings/npapi.h" |
| 17 #include "third_party/npapi/bindings/npruntime.h" | 16 #include "third_party/npapi/bindings/npruntime.h" |
| 18 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h" | 17 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h" |
| 19 | 18 |
| 20 using ppapi::NPObjectVar; | 19 using ppapi::NPObjectVar; |
| 21 using ppapi::PpapiGlobals; | |
| 22 using ppapi::StringVar; | 20 using ppapi::StringVar; |
| 23 using ppapi::Var; | 21 using ppapi::Var; |
| 24 using WebKit::WebBindings; | 22 using WebKit::WebBindings; |
| 25 | 23 |
| 26 namespace webkit { | 24 namespace webkit { |
| 27 namespace ppapi { | 25 namespace ppapi { |
| 28 | 26 |
| 29 namespace { | 27 namespace { |
| 30 | 28 |
| 31 const char kInvalidPluginValue[] = "Error: Plugin returned invalid value."; | 29 const char kInvalidPluginValue[] = "Error: Plugin returned invalid value."; |
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| 127 WebBindings::extractIdentifierData(id, string_value, int_value, is_string); | 125 WebBindings::extractIdentifierData(id, string_value, int_value, is_string); |
| 128 if (is_string) | 126 if (is_string) |
| 129 return StringVar::StringToPPVar(module, string_value); | 127 return StringVar::StringToPPVar(module, string_value); |
| 130 | 128 |
| 131 return PP_MakeInt32(int_value); | 129 return PP_MakeInt32(int_value); |
| 132 } | 130 } |
| 133 | 131 |
| 134 PP_Var NPObjectToPPVar(PluginInstance* instance, NPObject* object) { | 132 PP_Var NPObjectToPPVar(PluginInstance* instance, NPObject* object) { |
| 135 DCHECK(object); | 133 DCHECK(object); |
| 136 scoped_refptr<NPObjectVar> object_var( | 134 scoped_refptr<NPObjectVar> object_var( |
| 137 HostGlobals::Get()->host_resource_tracker()->NPObjectVarForNPObject( | 135 ResourceTracker::Get()->NPObjectVarForNPObject(instance->pp_instance(), |
| 138 instance->pp_instance(), object)); | 136 object)); |
| 139 if (!object_var) { // No object for this module yet, make a new one. | 137 if (!object_var) { // No object for this module yet, make a new one. |
| 140 object_var = new NPObjectVar(instance->module()->pp_module(), | 138 object_var = new NPObjectVar(instance->module()->pp_module(), |
| 141 instance->pp_instance(), object); | 139 instance->pp_instance(), object); |
| 142 } | 140 } |
| 143 return object_var->GetPPVar(); | 141 return object_var->GetPPVar(); |
| 144 } | 142 } |
| 145 | 143 |
| 146 // PPResultAndExceptionToNPResult ---------------------------------------------- | 144 // PPResultAndExceptionToNPResult ---------------------------------------------- |
| 147 | 145 |
| 148 PPResultAndExceptionToNPResult::PPResultAndExceptionToNPResult( | 146 PPResultAndExceptionToNPResult::PPResultAndExceptionToNPResult( |
| 149 NPObject* object_var, | 147 NPObject* object_var, |
| 150 NPVariant* np_result) | 148 NPVariant* np_result) |
| 151 : object_var_(object_var), | 149 : object_var_(object_var), |
| 152 np_result_(np_result), | 150 np_result_(np_result), |
| 153 exception_(PP_MakeUndefined()), | 151 exception_(PP_MakeUndefined()), |
| 154 success_(false), | 152 success_(false), |
| 155 checked_exception_(false) { | 153 checked_exception_(false) { |
| 156 } | 154 } |
| 157 | 155 |
| 158 PPResultAndExceptionToNPResult::~PPResultAndExceptionToNPResult() { | 156 PPResultAndExceptionToNPResult::~PPResultAndExceptionToNPResult() { |
| 159 // The user should have called SetResult or CheckExceptionForNoResult | 157 // The user should have called SetResult or CheckExceptionForNoResult |
| 160 // before letting this class go out of scope, or the exception will have | 158 // before letting this class go out of scope, or the exception will have |
| 161 // been lost. | 159 // been lost. |
| 162 DCHECK(checked_exception_); | 160 DCHECK(checked_exception_); |
| 163 | 161 |
| 164 PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(exception_); | 162 ResourceTracker::Get()->GetVarTracker()->ReleaseVar(exception_); |
| 165 } | 163 } |
| 166 | 164 |
| 167 // Call this with the return value of the PPAPI function. It will convert | 165 // Call this with the return value of the PPAPI function. It will convert |
| 168 // the result to the NPVariant output parameter and pass any exception on to | 166 // the result to the NPVariant output parameter and pass any exception on to |
| 169 // the JS engine. It will update the success flag and return it. | 167 // the JS engine. It will update the success flag and return it. |
| 170 bool PPResultAndExceptionToNPResult::SetResult(PP_Var result) { | 168 bool PPResultAndExceptionToNPResult::SetResult(PP_Var result) { |
| 171 DCHECK(!checked_exception_); // Don't call more than once. | 169 DCHECK(!checked_exception_); // Don't call more than once. |
| 172 DCHECK(np_result_); // Should be expecting a result. | 170 DCHECK(np_result_); // Should be expecting a result. |
| 173 | 171 |
| 174 checked_exception_ = true; | 172 checked_exception_ = true; |
| 175 | 173 |
| 176 if (has_exception()) { | 174 if (has_exception()) { |
| 177 ThrowException(); | 175 ThrowException(); |
| 178 success_ = false; | 176 success_ = false; |
| 179 } else if (!PPVarToNPVariant(result, np_result_)) { | 177 } else if (!PPVarToNPVariant(result, np_result_)) { |
| 180 WebBindings::setException(object_var_, kInvalidPluginValue); | 178 WebBindings::setException(object_var_, kInvalidPluginValue); |
| 181 success_ = false; | 179 success_ = false; |
| 182 } else { | 180 } else { |
| 183 success_ = true; | 181 success_ = true; |
| 184 } | 182 } |
| 185 | 183 |
| 186 // No matter what happened, we need to release the reference to the | 184 // No matter what happened, we need to release the reference to the |
| 187 // value passed in. On success, a reference to this value will be in | 185 // value passed in. On success, a reference to this value will be in |
| 188 // the np_result_. | 186 // the np_result_. |
| 189 PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(result); | 187 ResourceTracker::Get()->GetVarTracker()->ReleaseVar(result); |
| 190 return success_; | 188 return success_; |
| 191 } | 189 } |
| 192 | 190 |
| 193 // Call this after calling a PPAPI function that could have set the | 191 // Call this after calling a PPAPI function that could have set the |
| 194 // exception. It will pass the exception on to the JS engine and update | 192 // exception. It will pass the exception on to the JS engine and update |
| 195 // the success flag. | 193 // the success flag. |
| 196 // | 194 // |
| 197 // The success flag will be returned. | 195 // The success flag will be returned. |
| 198 bool PPResultAndExceptionToNPResult::CheckExceptionForNoResult() { | 196 bool PPResultAndExceptionToNPResult::CheckExceptionForNoResult() { |
| 199 DCHECK(!checked_exception_); // Don't call more than once. | 197 DCHECK(!checked_exception_); // Don't call more than once. |
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| 231 const NPVariant* variants) | 229 const NPVariant* variants) |
| 232 : size_(size) { | 230 : size_(size) { |
| 233 if (size_ > 0) { | 231 if (size_ > 0) { |
| 234 array_.reset(new PP_Var[size_]); | 232 array_.reset(new PP_Var[size_]); |
| 235 for (size_t i = 0; i < size_; i++) | 233 for (size_t i = 0; i < size_; i++) |
| 236 array_[i] = NPVariantToPPVar(instance, &variants[i]); | 234 array_[i] = NPVariantToPPVar(instance, &variants[i]); |
| 237 } | 235 } |
| 238 } | 236 } |
| 239 | 237 |
| 240 PPVarArrayFromNPVariantArray::~PPVarArrayFromNPVariantArray() { | 238 PPVarArrayFromNPVariantArray::~PPVarArrayFromNPVariantArray() { |
| 241 ::ppapi::VarTracker* var_tracker = PpapiGlobals::Get()->GetVarTracker(); | 239 ::ppapi::VarTracker* var_tracker = ResourceTracker::Get()->GetVarTracker(); |
| 242 for (size_t i = 0; i < size_; i++) | 240 for (size_t i = 0; i < size_; i++) |
| 243 var_tracker->ReleaseVar(array_[i]); | 241 var_tracker->ReleaseVar(array_[i]); |
| 244 } | 242 } |
| 245 | 243 |
| 246 // PPVarFromNPObject ----------------------------------------------------------- | 244 // PPVarFromNPObject ----------------------------------------------------------- |
| 247 | 245 |
| 248 PPVarFromNPObject::PPVarFromNPObject(PluginInstance* instance, NPObject* object) | 246 PPVarFromNPObject::PPVarFromNPObject(PluginInstance* instance, NPObject* object) |
| 249 : var_(NPObjectToPPVar(instance, object)) { | 247 : var_(NPObjectToPPVar(instance, object)) { |
| 250 } | 248 } |
| 251 | 249 |
| 252 PPVarFromNPObject::~PPVarFromNPObject() { | 250 PPVarFromNPObject::~PPVarFromNPObject() { |
| 253 PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(var_); | 251 ResourceTracker::Get()->GetVarTracker()->ReleaseVar(var_); |
| 254 } | 252 } |
| 255 | 253 |
| 256 // NPObjectAccessorWithIdentifier ---------------------------------------------- | 254 // NPObjectAccessorWithIdentifier ---------------------------------------------- |
| 257 | 255 |
| 258 NPObjectAccessorWithIdentifier::NPObjectAccessorWithIdentifier( | 256 NPObjectAccessorWithIdentifier::NPObjectAccessorWithIdentifier( |
| 259 NPObject* object, | 257 NPObject* object, |
| 260 NPIdentifier identifier, | 258 NPIdentifier identifier, |
| 261 bool allow_integer_identifier) | 259 bool allow_integer_identifier) |
| 262 : object_(PluginObject::FromNPObject(object)), | 260 : object_(PluginObject::FromNPObject(object)), |
| 263 identifier_(PP_MakeUndefined()) { | 261 identifier_(PP_MakeUndefined()) { |
| 264 if (object_) { | 262 if (object_) { |
| 265 identifier_ = NPIdentifierToPPVar( | 263 identifier_ = NPIdentifierToPPVar( |
| 266 object_->instance()->module()->pp_module(), identifier); | 264 object_->instance()->module()->pp_module(), identifier); |
| 267 if (identifier_.type == PP_VARTYPE_INT32 && !allow_integer_identifier) | 265 if (identifier_.type == PP_VARTYPE_INT32 && !allow_integer_identifier) |
| 268 identifier_.type = PP_VARTYPE_UNDEFINED; // Mark it invalid. | 266 identifier_.type = PP_VARTYPE_UNDEFINED; // Mark it invalid. |
| 269 } | 267 } |
| 270 } | 268 } |
| 271 | 269 |
| 272 NPObjectAccessorWithIdentifier::~NPObjectAccessorWithIdentifier() { | 270 NPObjectAccessorWithIdentifier::~NPObjectAccessorWithIdentifier() { |
| 273 PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(identifier_); | 271 ResourceTracker::Get()->GetVarTracker()->ReleaseVar(identifier_); |
| 274 } | 272 } |
| 275 | 273 |
| 276 // TryCatch -------------------------------------------------------------------- | 274 // TryCatch -------------------------------------------------------------------- |
| 277 | 275 |
| 278 TryCatch::TryCatch(PP_Module module, PP_Var* exception) | 276 TryCatch::TryCatch(PP_Module module, PP_Var* exception) |
| 279 : pp_module_(module), | 277 : pp_module_(module), |
| 280 has_exception_(exception && exception->type != PP_VARTYPE_UNDEFINED), | 278 has_exception_(exception && exception->type != PP_VARTYPE_UNDEFINED), |
| 281 exception_(exception) { | 279 exception_(exception) { |
| 282 WebBindings::pushExceptionHandler(&TryCatch::Catch, this); | 280 WebBindings::pushExceptionHandler(&TryCatch::Catch, this); |
| 283 } | 281 } |
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| 312 } | 310 } |
| 313 } | 311 } |
| 314 | 312 |
| 315 // static | 313 // static |
| 316 void TryCatch::Catch(void* self, const char* message) { | 314 void TryCatch::Catch(void* self, const char* message) { |
| 317 static_cast<TryCatch*>(self)->SetException(message); | 315 static_cast<TryCatch*>(self)->SetException(message); |
| 318 } | 316 } |
| 319 | 317 |
| 320 } // namespace ppapi | 318 } // namespace ppapi |
| 321 } // namespace webkit | 319 } // namespace webkit |
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