1 /* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "public/web/WebBindings.h" 33 34 #include "bindings/core/v8/NPV8Object.h" 35 #include "bindings/core/v8/ScriptController.h" 36 #include "bindings/core/v8/V8DOMWrapper.h" 37 #include "bindings/core/v8/V8Element.h" 38 #include "bindings/core/v8/V8NPObject.h" 39 #include "bindings/core/v8/V8NPUtils.h" 40 #include "bindings/core/v8/V8Range.h" 41 #include "bindings/core/v8/custom/V8ArrayBufferCustom.h" 42 #include "bindings/core/v8/custom/V8ArrayBufferViewCustom.h" 43 #include "bindings/core/v8/npruntime_impl.h" 44 #include "bindings/core/v8/npruntime_priv.h" 45 #include "core/dom/Range.h" 46 #include "core/frame/LocalDOMWindow.h" 47 #include "core/frame/LocalFrame.h" 48 #include "public/platform/WebArrayBuffer.h" 49 #include "public/web/WebArrayBufferView.h" 50 #include "public/web/WebElement.h" 51 #include "public/web/WebRange.h" 52 #include "wtf/ArrayBufferView.h" 53 54 namespace blink { 55 56 bool WebBindings::construct(NPP npp, NPObject* object, const NPVariant* args, uint32_t argCount, NPVariant* result) 57 { 58 return _NPN_Construct(npp, object, args, argCount, result); 59 } 60 61 NPObject* WebBindings::createObject(NPP npp, NPClass* npClass) 62 { 63 return _NPN_CreateObject(npp, npClass); 64 } 65 66 bool WebBindings::enumerate(NPP npp, NPObject* object, NPIdentifier** identifier, uint32_t* identifierCount) 67 { 68 return _NPN_Enumerate(npp, object, identifier, identifierCount); 69 } 70 71 bool WebBindings::evaluate(NPP npp, NPObject* object, NPString* script, NPVariant* result) 72 { 73 return _NPN_Evaluate(npp, object, script, result); 74 } 75 76 bool WebBindings::evaluateHelper(NPP npp, bool popupsAllowed, NPObject* object, NPString* script, NPVariant* result) 77 { 78 return _NPN_EvaluateHelper(npp, popupsAllowed, object, script, result); 79 } 80 81 NPIdentifier WebBindings::getIntIdentifier(int32_t number) 82 { 83 return _NPN_GetIntIdentifier(number); 84 } 85 86 bool WebBindings::getProperty(NPP npp, NPObject* object, NPIdentifier property, NPVariant* result) 87 { 88 return _NPN_GetProperty(npp, object, property, result); 89 } 90 91 NPIdentifier WebBindings::getStringIdentifier(const NPUTF8* string) 92 { 93 return _NPN_GetStringIdentifier(string); 94 } 95 96 void WebBindings::getStringIdentifiers(const NPUTF8** names, int32_t nameCount, NPIdentifier* identifiers) 97 { 98 _NPN_GetStringIdentifiers(names, nameCount, identifiers); 99 } 100 101 bool WebBindings::hasMethod(NPP npp, NPObject* object, NPIdentifier method) 102 { 103 return _NPN_HasMethod(npp, object, method); 104 } 105 106 bool WebBindings::hasProperty(NPP npp, NPObject* object, NPIdentifier property) 107 { 108 return _NPN_HasProperty(npp, object, property); 109 } 110 111 bool WebBindings::identifierIsString(NPIdentifier identifier) 112 { 113 return _NPN_IdentifierIsString(identifier); 114 } 115 116 int32_t WebBindings::intFromIdentifier(NPIdentifier identifier) 117 { 118 return _NPN_IntFromIdentifier(identifier); 119 } 120 121 void WebBindings::initializeVariantWithStringCopy(NPVariant* variant, const NPString* value) 122 { 123 _NPN_InitializeVariantWithStringCopy(variant, value); 124 } 125 126 bool WebBindings::invoke(NPP npp, NPObject* object, NPIdentifier method, const NPVariant* args, uint32_t argCount, NPVariant* result) 127 { 128 return _NPN_Invoke(npp, object, method, args, argCount, result); 129 } 130 131 bool WebBindings::invokeDefault(NPP npp, NPObject* object, const NPVariant* args, uint32_t argCount, NPVariant* result) 132 { 133 return _NPN_InvokeDefault(npp, object, args, argCount, result); 134 } 135 136 void WebBindings::releaseObject(NPObject* object) 137 { 138 return _NPN_ReleaseObject(object); 139 } 140 141 void WebBindings::releaseVariantValue(NPVariant* variant) 142 { 143 _NPN_ReleaseVariantValue(variant); 144 } 145 146 bool WebBindings::removeProperty(NPP npp, NPObject* object, NPIdentifier identifier) 147 { 148 return _NPN_RemoveProperty(npp, object, identifier); 149 } 150 151 NPObject* WebBindings::retainObject(NPObject* object) 152 { 153 return _NPN_RetainObject(object); 154 } 155 156 void WebBindings::setException(NPObject* object, const NPUTF8* message) 157 { 158 _NPN_SetException(object, message); 159 } 160 161 bool WebBindings::setProperty(NPP npp, NPObject* object, NPIdentifier identifier, const NPVariant* value) 162 { 163 return _NPN_SetProperty(npp, object, identifier, value); 164 } 165 166 void WebBindings::registerObjectOwner(NPP) 167 { 168 } 169 170 void WebBindings::unregisterObjectOwner(NPP) 171 { 172 } 173 174 NPP WebBindings::getObjectOwner(NPObject*) 175 { 176 return 0; 177 } 178 179 void WebBindings::unregisterObject(NPObject* object) 180 { 181 _NPN_UnregisterObject(object); 182 } 183 184 void WebBindings::dropV8WrapperForObject(NPObject* object) 185 { 186 forgetV8ObjectForNPObject(object); 187 } 188 189 NPUTF8* WebBindings::utf8FromIdentifier(NPIdentifier identifier) 190 { 191 return _NPN_UTF8FromIdentifier(identifier); 192 } 193 194 void WebBindings::extractIdentifierData(const NPIdentifier& identifier, const NPUTF8*& string, int32_t& number, bool& isString) 195 { 196 PrivateIdentifier* data = static_cast<PrivateIdentifier*>(identifier); 197 if (!data) { 198 isString = false; 199 number = 0; 200 return; 201 } 202 203 isString = data->isString; 204 if (isString) 205 string = data->value.string; 206 else 207 number = data->value.number; 208 } 209 210 static bool getRangeImpl(NPObject* object, WebRange* webRange, v8::Isolate* isolate) 211 { 212 if (!object) 213 return false; 214 215 V8NPObject* v8NPObject = npObjectToV8NPObject(object); 216 if (!v8NPObject) 217 return false; 218 219 v8::HandleScope handleScope(isolate); 220 v8::Handle<v8::Object> v8Object = v8::Local<v8::Object>::New(isolate, v8NPObject->v8Object); 221 if (v8Object.IsEmpty()) 222 return false; 223 if (!V8Range::wrapperTypeInfo.equals(toWrapperTypeInfo(v8Object))) 224 return false; 225 226 Range* native = V8Range::hasInstance(v8Object, isolate) ? V8Range::toImpl(v8Object) : 0; 227 if (!native) 228 return false; 229 230 *webRange = WebRange(native); 231 return true; 232 } 233 234 static bool getNodeImpl(NPObject* object, WebNode* webNode, v8::Isolate* isolate) 235 { 236 if (!object) 237 return false; 238 239 V8NPObject* v8NPObject = npObjectToV8NPObject(object); 240 if (!v8NPObject) 241 return false; 242 243 v8::HandleScope handleScope(isolate); 244 v8::Handle<v8::Object> v8Object = v8::Local<v8::Object>::New(isolate, v8NPObject->v8Object); 245 if (v8Object.IsEmpty()) 246 return false; 247 Node* native = V8Node::hasInstance(v8Object, isolate) ? V8Node::toImpl(v8Object) : 0; 248 if (!native) 249 return false; 250 251 *webNode = WebNode(native); 252 return true; 253 } 254 255 static bool getElementImpl(NPObject* object, WebElement* webElement, v8::Isolate* isolate) 256 { 257 if (!object) 258 return false; 259 260 V8NPObject* v8NPObject = npObjectToV8NPObject(object); 261 if (!v8NPObject) 262 return false; 263 264 v8::HandleScope handleScope(isolate); 265 v8::Handle<v8::Object> v8Object = v8::Local<v8::Object>::New(isolate, v8NPObject->v8Object); 266 if (v8Object.IsEmpty()) 267 return false; 268 Element* native = V8Element::hasInstance(v8Object, isolate) ? V8Element::toImpl(v8Object) : 0; 269 if (!native) 270 return false; 271 272 *webElement = WebElement(native); 273 return true; 274 } 275 276 static bool getArrayBufferImpl(NPObject* object, WebArrayBuffer* arrayBuffer, v8::Isolate* isolate) 277 { 278 if (!object) 279 return false; 280 281 V8NPObject* v8NPObject = npObjectToV8NPObject(object); 282 if (!v8NPObject) 283 return false; 284 285 v8::HandleScope handleScope(isolate); 286 v8::Handle<v8::Object> v8Object = v8::Local<v8::Object>::New(isolate, v8NPObject->v8Object); 287 if (v8Object.IsEmpty()) 288 return false; 289 ArrayBuffer* native = V8ArrayBuffer::hasInstance(v8Object, isolate) ? V8ArrayBuffer::toImpl(v8Object) : 0; 290 if (!native) 291 return false; 292 293 *arrayBuffer = WebArrayBuffer(native); 294 return true; 295 } 296 297 static bool getArrayBufferViewImpl(NPObject* object, WebArrayBufferView* arrayBufferView, v8::Isolate* isolate) 298 { 299 if (!object) 300 return false; 301 302 V8NPObject* v8NPObject = npObjectToV8NPObject(object); 303 if (!v8NPObject) 304 return false; 305 306 v8::HandleScope handleScope(isolate); 307 v8::Handle<v8::Object> v8Object = v8::Local<v8::Object>::New(isolate, v8NPObject->v8Object); 308 if (v8Object.IsEmpty()) 309 return false; 310 ArrayBufferView* native = V8ArrayBufferView::hasInstance(v8Object, isolate) ? V8ArrayBufferView::toImpl(v8Object) : 0; 311 if (!native) 312 return false; 313 314 *arrayBufferView = WebArrayBufferView(native); 315 return true; 316 } 317 318 static NPObject* makeIntArrayImpl(const WebVector<int>& data, v8::Isolate* isolate) 319 { 320 v8::HandleScope handleScope(isolate); 321 v8::Handle<v8::Array> result = v8::Array::New(isolate, data.size()); 322 for (size_t i = 0; i < data.size(); ++i) 323 result->Set(i, v8::Number::New(isolate, data[i])); 324 325 LocalDOMWindow* window = currentDOMWindow(isolate); 326 return npCreateV8ScriptObject(0, result, window, isolate); 327 } 328 329 static NPObject* makeStringArrayImpl(const WebVector<WebString>& data, v8::Isolate* isolate) 330 { 331 v8::HandleScope handleScope(isolate); 332 v8::Handle<v8::Array> result = v8::Array::New(isolate, data.size()); 333 for (size_t i = 0; i < data.size(); ++i) 334 result->Set(i, v8String(isolate, data[i])); 335 336 LocalDOMWindow* window = currentDOMWindow(isolate); 337 return npCreateV8ScriptObject(0, result, window, isolate); 338 } 339 340 bool WebBindings::getRange(NPObject* range, WebRange* webRange) 341 { 342 return getRangeImpl(range, webRange, v8::Isolate::GetCurrent()); 343 } 344 345 bool WebBindings::getArrayBuffer(NPObject* arrayBuffer, WebArrayBuffer* webArrayBuffer) 346 { 347 return getArrayBufferImpl(arrayBuffer, webArrayBuffer, v8::Isolate::GetCurrent()); 348 } 349 350 bool WebBindings::getArrayBufferView(NPObject* arrayBufferView, WebArrayBufferView* webArrayBufferView) 351 { 352 return getArrayBufferViewImpl(arrayBufferView, webArrayBufferView, v8::Isolate::GetCurrent()); 353 } 354 355 bool WebBindings::getNode(NPObject* node, WebNode* webNode) 356 { 357 return getNodeImpl(node, webNode, v8::Isolate::GetCurrent()); 358 } 359 360 bool WebBindings::getElement(NPObject* element, WebElement* webElement) 361 { 362 return getElementImpl(element, webElement, v8::Isolate::GetCurrent()); 363 } 364 365 NPObject* WebBindings::makeIntArray(const WebVector<int>& data) 366 { 367 return makeIntArrayImpl(data, v8::Isolate::GetCurrent()); 368 } 369 370 NPObject* WebBindings::makeStringArray(const WebVector<WebString>& data) 371 { 372 return makeStringArrayImpl(data, v8::Isolate::GetCurrent()); 373 } 374 375 void WebBindings::pushExceptionHandler(ExceptionHandler handler, void* data) 376 { 377 blink::pushExceptionHandler(handler, data); 378 } 379 380 void WebBindings::popExceptionHandler() 381 { 382 blink::popExceptionHandler(); 383 } 384 385 void WebBindings::toNPVariant(v8::Local<v8::Value> object, NPObject* root, NPVariant* result) 386 { 387 convertV8ObjectToNPVariant(object, root, result, v8::Isolate::GetCurrent()); 388 } 389 390 v8::Handle<v8::Value> WebBindings::toV8Value(const NPVariant* variant) 391 { 392 v8::Isolate* isolate = v8::Isolate::GetCurrent(); 393 if (variant->type == NPVariantType_Object) { 394 NPObject* object = NPVARIANT_TO_OBJECT(*variant); 395 V8NPObject* v8Object = npObjectToV8NPObject(object); 396 if (!v8Object) 397 return v8::Undefined(isolate); 398 return convertNPVariantToV8Object(variant, v8Object->rootObject->frame()->script().windowScriptNPObject(), isolate); 399 } 400 // Safe to pass 0 since we have checked the script object class to make sure the 401 // argument is a primitive v8 type. 402 return convertNPVariantToV8Object(variant, 0, isolate); 403 } 404 405 } // namespace blink 406