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| 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 "WebBindings.h" | |
| 33 | |
| 34 #include "npruntime_impl.h" | |
| 35 #include "npruntime_priv.h" | |
| 36 #include "webkit/api/public/WebDragData.h" | |
| 37 #include "webkit/api/public/WebRange.h" | |
| 38 | |
| 39 #if USE(V8) | |
| 40 #include "ChromiumDataObject.h" | |
| 41 #include "ClipboardChromium.h" | |
| 42 #include "EventNames.h" | |
| 43 #include "MouseEvent.h" | |
| 44 #include "NPV8Object.h" // for PrivateIdentifier | |
| 45 #include "Range.h" | |
| 46 #include "V8DOMWrapper.h" | |
| 47 #include "V8Helpers.h" | |
| 48 #include "V8Proxy.h" | |
| 49 #elif USE(JSC) | |
| 50 #include "bridge/c/c_utility.h" | |
| 51 #endif | |
| 52 | |
| 53 #if USE(JAVASCRIPTCORE_BINDINGS) | |
| 54 using JSC::Bindings::PrivateIdentifier; | |
| 55 #endif | |
| 56 | |
| 57 using namespace WebCore; | |
| 58 | |
| 59 namespace WebKit { | |
| 60 | |
| 61 bool WebBindings::construct(NPP npp, NPObject *npobj, const NPVariant *args, uint32_t argCount, NPVariant* result) | |
| 62 { | |
| 63 return _NPN_Construct(npp, npobj, args, argCount, result); | |
| 64 } | |
| 65 | |
| 66 NPObject* WebBindings::createObject(NPP npp, NPClass* npClass) | |
| 67 { | |
| 68 return _NPN_CreateObject(npp, npClass); | |
| 69 } | |
| 70 | |
| 71 bool WebBindings::enumerate(NPP id, NPObject* obj, NPIdentifier** identifier, uint32_t* val) | |
| 72 { | |
| 73 return _NPN_Enumerate(id, obj, identifier, val); | |
| 74 } | |
| 75 | |
| 76 bool WebBindings::evaluate(NPP npp, NPObject* npObject, NPString* npScript, NPVariant* result) | |
| 77 { | |
| 78 return _NPN_Evaluate(npp, npObject, npScript, result); | |
| 79 } | |
| 80 | |
| 81 bool WebBindings::evaluateHelper(NPP npp, bool popups_allowed, NPObject* npobj, NPString* npscript, NPVariant* result) | |
| 82 { | |
| 83 return _NPN_EvaluateHelper(npp, popups_allowed, npobj, npscript, result); | |
| 84 } | |
| 85 | |
| 86 NPIdentifier WebBindings::getIntIdentifier(int32_t number) | |
| 87 { | |
| 88 return _NPN_GetIntIdentifier(number); | |
| 89 } | |
| 90 | |
| 91 bool WebBindings::getProperty(NPP npp, NPObject* obj, NPIdentifier propertyName, NPVariant *result) | |
| 92 { | |
| 93 return _NPN_GetProperty(npp, obj, propertyName, result); | |
| 94 } | |
| 95 | |
| 96 NPIdentifier WebBindings::getStringIdentifier(const NPUTF8* string) | |
| 97 { | |
| 98 return _NPN_GetStringIdentifier(string); | |
| 99 } | |
| 100 | |
| 101 void WebBindings::getStringIdentifiers(const NPUTF8** names, int32_t nameCount, NPIdentifier* identifiers) | |
| 102 { | |
| 103 _NPN_GetStringIdentifiers(names, nameCount, identifiers); | |
| 104 } | |
| 105 | |
| 106 bool WebBindings::hasMethod(NPP npp, NPObject* npObject, NPIdentifier methodName) | |
| 107 { | |
| 108 return _NPN_HasMethod(npp, npObject, methodName); | |
| 109 } | |
| 110 | |
| 111 bool WebBindings::hasProperty(NPP npp, NPObject* npObject, NPIdentifier propertyName) | |
| 112 { | |
| 113 return _NPN_HasProperty(npp, npObject, propertyName); | |
| 114 } | |
| 115 | |
| 116 bool WebBindings::identifierIsString(NPIdentifier identifier) | |
| 117 { | |
| 118 return _NPN_IdentifierIsString(identifier); | |
| 119 } | |
| 120 | |
| 121 int32_t WebBindings::intFromIdentifier(NPIdentifier identifier) | |
| 122 { | |
| 123 return _NPN_IntFromIdentifier(identifier); | |
| 124 } | |
| 125 | |
| 126 void WebBindings::initializeVariantWithStringCopy(NPVariant* variant, const NPString* value) | |
| 127 { | |
| 128 #if USE(V8) | |
| 129 _NPN_InitializeVariantWithStringCopy(variant, value); | |
| 130 #else | |
| 131 NPN_InitializeVariantWithStringCopy(variant, value); | |
| 132 #endif | |
| 133 } | |
| 134 | |
| 135 bool WebBindings::invoke(NPP npp, NPObject* npObject, NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result) | |
| 136 { | |
| 137 return _NPN_Invoke(npp, npObject, methodName, arguments, argumentCount, result); | |
| 138 } | |
| 139 | |
| 140 bool WebBindings::invokeDefault(NPP id, NPObject* obj, const NPVariant* args, uint32_t count, NPVariant* result) | |
| 141 { | |
| 142 return _NPN_InvokeDefault(id, obj, args, count, result); | |
| 143 } | |
| 144 | |
| 145 void WebBindings::releaseObject(NPObject* npObject) | |
| 146 { | |
| 147 return _NPN_ReleaseObject(npObject); | |
| 148 } | |
| 149 | |
| 150 void WebBindings::releaseVariantValue(NPVariant* variant) | |
| 151 { | |
| 152 _NPN_ReleaseVariantValue(variant); | |
| 153 } | |
| 154 | |
| 155 bool WebBindings::removeProperty(NPP id, NPObject* object, NPIdentifier identifier) | |
| 156 { | |
| 157 return _NPN_RemoveProperty(id, object, identifier); | |
| 158 } | |
| 159 | |
| 160 NPObject* WebBindings::retainObject(NPObject* npObject) | |
| 161 { | |
| 162 return _NPN_RetainObject(npObject); | |
| 163 } | |
| 164 | |
| 165 void WebBindings::setException(NPObject* obj, const NPUTF8* message) | |
| 166 { | |
| 167 _NPN_SetException(obj, message); | |
| 168 } | |
| 169 | |
| 170 bool WebBindings::setProperty(NPP id, NPObject* obj, NPIdentifier identifier, const NPVariant* variant) | |
| 171 { | |
| 172 return _NPN_SetProperty(id, obj, identifier, variant); | |
| 173 } | |
| 174 | |
| 175 void WebBindings::unregisterObject(NPObject* npObject) | |
| 176 { | |
| 177 #if USE(V8) | |
| 178 _NPN_UnregisterObject(npObject); | |
| 179 #endif | |
| 180 } | |
| 181 | |
| 182 NPUTF8* WebBindings::utf8FromIdentifier(NPIdentifier identifier) | |
| 183 { | |
| 184 return _NPN_UTF8FromIdentifier(identifier); | |
| 185 } | |
| 186 | |
| 187 void WebBindings::extractIdentifierData(const NPIdentifier& identifier, const NPUTF8*& string, int32_t& number, bool& isString) | |
| 188 { | |
| 189 PrivateIdentifier* priv = static_cast<PrivateIdentifier*>(identifier); | |
| 190 if (!priv) { | |
| 191 isString = false; | |
| 192 number = 0; | |
| 193 return; | |
| 194 } | |
| 195 | |
| 196 isString = priv->isString; | |
| 197 if (isString) | |
| 198 string = priv->value.string; | |
| 199 else | |
| 200 number = priv->value.number; | |
| 201 } | |
| 202 | |
| 203 #if USE(V8) | |
| 204 | |
| 205 static v8::Local<v8::Value> getEvent(const v8::Handle<v8::Context>& context) | |
| 206 { | |
| 207 static v8::Persistent<v8::String> eventSymbol(v8::Persistent<v8::String>::New(v8::String::NewSymbol("event"))); | |
| 208 return context->Global()->GetHiddenValue(eventSymbol); | |
| 209 } | |
| 210 | |
| 211 static bool getDragDataImpl(NPObject* npobj, int* eventId, WebDragData* data) | |
| 212 { | |
| 213 if (!npobj) | |
| 214 return false; | |
| 215 if (npobj->_class != npScriptObjectClass) | |
| 216 return false; | |
| 217 | |
| 218 v8::HandleScope handleScope; | |
| 219 v8::Handle<v8::Context> context = v8::Context::GetEntered(); | |
| 220 if (context.IsEmpty()) | |
| 221 return false; | |
| 222 | |
| 223 // Get the current WebCore event. | |
| 224 v8::Handle<v8::Value> currentEvent(getEvent(context)); | |
| 225 Event* event = V8DOMWrapper::convertToNativeEvent(currentEvent); | |
| 226 if (!event) | |
| 227 return false; | |
| 228 | |
| 229 // Check that the given npobj is that event. | |
| 230 V8NPObject* object = reinterpret_cast<V8NPObject*>(npobj); | |
| 231 Event* given = V8DOMWrapper::convertToNativeEvent(object->v8Object); | |
| 232 if (given != event) | |
| 233 return false; | |
| 234 | |
| 235 // Check the execution frames are same origin. | |
| 236 V8Proxy* current = V8Proxy::retrieve(V8Proxy::retrieveFrameForCurrentContext()); | |
| 237 Frame* frame = V8Proxy::retrieveFrame(context); | |
| 238 if (!current || !current->canAccessFrame(frame, false)) | |
| 239 return false; | |
| 240 | |
| 241 const EventNames& names(eventNames()); | |
| 242 const AtomicString& eventType(event->type()); | |
| 243 | |
| 244 enum DragTargetMouseEventId { | |
| 245 DragEnterId = 1, DragOverId = 2, DragLeaveId = 3, DropId = 4 | |
| 246 }; | |
| 247 | |
| 248 // The event type should be a drag event. | |
| 249 if (eventType == names.dragenterEvent) | |
| 250 *eventId = DragEnterId; | |
| 251 else if (eventType == names.dragoverEvent) | |
| 252 *eventId = DragOverId; | |
| 253 else if (eventType == names.dragleaveEvent) | |
| 254 *eventId = DragLeaveId; | |
| 255 else if (eventType == names.dropEvent) | |
| 256 *eventId = DropId; | |
| 257 else | |
| 258 return false; | |
| 259 | |
| 260 // Drag events are mouse events and should have a clipboard. | |
| 261 MouseEvent* me = static_cast<MouseEvent*>(event); | |
| 262 Clipboard* clipboard = me->clipboard(); | |
| 263 if (!clipboard) | |
| 264 return false; | |
| 265 | |
| 266 // And that clipboard should be accessible by WebKit policy. | |
| 267 ClipboardChromium* chrome = static_cast<ClipboardChromium*>(clipboard); | |
| 268 HashSet<String> accessible(chrome->types()); | |
| 269 if (accessible.isEmpty()) | |
| 270 return false; | |
| 271 | |
| 272 RefPtr<ChromiumDataObject> dataObject(chrome->dataObject()); | |
| 273 if (dataObject && data) | |
| 274 *data = WebDragData(dataObject); | |
| 275 | |
| 276 return dataObject; | |
| 277 } | |
| 278 | |
| 279 static bool getRangeImpl(NPObject* npobj, WebRange* range) | |
| 280 { | |
| 281 V8NPObject* v8npobject = reinterpret_cast<V8NPObject*>(npobj); | |
| 282 v8::Handle<v8::Object> v8object(v8npobject->v8Object); | |
| 283 if (V8ClassIndex::RANGE != V8DOMWrapper::domWrapperType(v8object)) | |
| 284 return false; | |
| 285 | |
| 286 Range* native = V8DOMWrapper::convertToNativeObject<WebCore::Range>(V8ClassIndex::RANGE, v8object); | |
| 287 if (!native) | |
| 288 return false; | |
| 289 | |
| 290 *range = WebRange(native); | |
| 291 return true; | |
| 292 } | |
| 293 | |
| 294 #endif | |
| 295 | |
| 296 bool WebBindings::getDragData(NPObject* event, int* eventId, WebDragData* data) | |
| 297 { | |
| 298 #if USE(V8) | |
| 299 return getDragDataImpl(event, eventId, data); | |
| 300 #else | |
| 301 // Not supported on other ports (JSC, etc). | |
| 302 return false; | |
| 303 #endif | |
| 304 } | |
| 305 | |
| 306 bool WebBindings::isDragEvent(NPObject* event) | |
| 307 { | |
| 308 int eventId; | |
| 309 return getDragData(event, &eventId, 0); | |
| 310 } | |
| 311 | |
| 312 bool WebBindings::getRange(NPObject* range, WebRange* webrange) | |
| 313 { | |
| 314 #if USE(V8) | |
| 315 return getRangeImpl(range, webrange); | |
| 316 #else | |
| 317 // Not supported on other ports (JSC, etc). | |
| 318 return false; | |
| 319 #endif | |
| 320 } | |
| 321 | |
| 322 } // namespace WebKit | |
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Chromium Code Reviews
Issue 385057:
Deleted webkit/api which now lives in webkit.org (Closed)
