--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/chromium/src/WebBindings.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,336 @@
+/*
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "WebBindings.h"
+
+#include "npruntime_impl.h"
+#include "npruntime_priv.h"
+
+#if USE(V8)
+#include "ChromiumDataObject.h"
+#include "ClipboardChromium.h"
+#include "EventNames.h"
+#include "MouseEvent.h"
+#include "NPV8Object.h" // for PrivateIdentifier
+#include "Range.h"
+#include "V8BindingState.h"
+#include "V8DOMWrapper.h"
+#include "V8Event.h"
+#include "V8Helpers.h"
+#include "V8HiddenPropertyName.h"
+#include "V8NPUtils.h"
+#include "V8Proxy.h"
+#include "V8Range.h"
+#elif USE(JSC)
+#include "bridge/c/c_utility.h"
+#endif
+#include "WebDragData.h"
+#include "WebRange.h"
+
+#if USE(JAVASCRIPTCORE_BINDINGS)
+using JSC::Bindings::PrivateIdentifier;
+#endif
+
+using namespace WebCore;
+
+namespace WebKit {
+
+bool WebBindings::construct(NPP npp, NPObject *npobj, const NPVariant *args, uint32_t argCount, NPVariant* result)
+{
+ return _NPN_Construct(npp, npobj, args, argCount, result);
+}
+
+NPObject* WebBindings::createObject(NPP npp, NPClass* npClass)
+{
+ return _NPN_CreateObject(npp, npClass);
+}
+
+bool WebBindings::enumerate(NPP id, NPObject* obj, NPIdentifier** identifier, uint32_t* val)
+{
+ return _NPN_Enumerate(id, obj, identifier, val);
+}
+
+bool WebBindings::evaluate(NPP npp, NPObject* npObject, NPString* npScript, NPVariant* result)
+{
+ return _NPN_Evaluate(npp, npObject, npScript, result);
+}
+
+bool WebBindings::evaluateHelper(NPP npp, bool popups_allowed, NPObject* npobj, NPString* npscript, NPVariant* result)
+{
+ return _NPN_EvaluateHelper(npp, popups_allowed, npobj, npscript, result);
+}
+
+NPIdentifier WebBindings::getIntIdentifier(int32_t number)
+{
+ return _NPN_GetIntIdentifier(number);
+}
+
+bool WebBindings::getProperty(NPP npp, NPObject* obj, NPIdentifier propertyName, NPVariant *result)
+{
+ return _NPN_GetProperty(npp, obj, propertyName, result);
+}
+
+NPIdentifier WebBindings::getStringIdentifier(const NPUTF8* string)
+{
+ return _NPN_GetStringIdentifier(string);
+}
+
+void WebBindings::getStringIdentifiers(const NPUTF8** names, int32_t nameCount, NPIdentifier* identifiers)
+{
+ _NPN_GetStringIdentifiers(names, nameCount, identifiers);
+}
+
+bool WebBindings::hasMethod(NPP npp, NPObject* npObject, NPIdentifier methodName)
+{
+ return _NPN_HasMethod(npp, npObject, methodName);
+}
+
+bool WebBindings::hasProperty(NPP npp, NPObject* npObject, NPIdentifier propertyName)
+{
+ return _NPN_HasProperty(npp, npObject, propertyName);
+}
+
+bool WebBindings::identifierIsString(NPIdentifier identifier)
+{
+ return _NPN_IdentifierIsString(identifier);
+}
+
+int32_t WebBindings::intFromIdentifier(NPIdentifier identifier)
+{
+ return _NPN_IntFromIdentifier(identifier);
+}
+
+void WebBindings::initializeVariantWithStringCopy(NPVariant* variant, const NPString* value)
+{
+#if USE(V8)
+ _NPN_InitializeVariantWithStringCopy(variant, value);
+#else
+ NPN_InitializeVariantWithStringCopy(variant, value);
+#endif
+}
+
+bool WebBindings::invoke(NPP npp, NPObject* npObject, NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result)
+{
+ return _NPN_Invoke(npp, npObject, methodName, arguments, argumentCount, result);
+}
+
+bool WebBindings::invokeDefault(NPP id, NPObject* obj, const NPVariant* args, uint32_t count, NPVariant* result)
+{
+ return _NPN_InvokeDefault(id, obj, args, count, result);
+}
+
+void WebBindings::releaseObject(NPObject* npObject)
+{
+ return _NPN_ReleaseObject(npObject);
+}
+
+void WebBindings::releaseVariantValue(NPVariant* variant)
+{
+ _NPN_ReleaseVariantValue(variant);
+}
+
+bool WebBindings::removeProperty(NPP id, NPObject* object, NPIdentifier identifier)
+{
+ return _NPN_RemoveProperty(id, object, identifier);
+}
+
+NPObject* WebBindings::retainObject(NPObject* npObject)
+{
+ return _NPN_RetainObject(npObject);
+}
+
+void WebBindings::setException(NPObject* obj, const NPUTF8* message)
+{
+ _NPN_SetException(obj, message);
+}
+
+bool WebBindings::setProperty(NPP id, NPObject* obj, NPIdentifier identifier, const NPVariant* variant)
+{
+ return _NPN_SetProperty(id, obj, identifier, variant);
+}
+
+void WebBindings::unregisterObject(NPObject* npObject)
+{
+#if USE(V8)
+ _NPN_UnregisterObject(npObject);
+#endif
+}
+
+NPUTF8* WebBindings::utf8FromIdentifier(NPIdentifier identifier)
+{
+ return _NPN_UTF8FromIdentifier(identifier);
+}
+
+void WebBindings::extractIdentifierData(const NPIdentifier& identifier, const NPUTF8*& string, int32_t& number, bool& isString)
+{
+ PrivateIdentifier* priv = static_cast<PrivateIdentifier*>(identifier);
+ if (!priv) {
+ isString = false;
+ number = 0;
+ return;
+ }
+
+ isString = priv->isString;
+ if (isString)
+ string = priv->value.string;
+ else
+ number = priv->value.number;
+}
+
+#if USE(V8)
+
+static v8::Local<v8::Value> getEvent(const v8::Handle<v8::Context>& context)
+{
+ return context->Global()->GetHiddenValue(V8HiddenPropertyName::event());
+}
+
+static bool getDragDataImpl(NPObject* npobj, int* eventId, WebDragData* data)
+{
+ if (!npobj)
+ return false;
+ if (npobj->_class != npScriptObjectClass)
+ return false;
+
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = v8::Context::GetEntered();
+ if (context.IsEmpty())
+ return false;
+
+ // Get the current WebCore event.
+ v8::Handle<v8::Value> currentEvent(getEvent(context));
+ Event* event = V8Event::toNative(v8::Handle<v8::Object>::Cast(currentEvent));
+ if (!event)
+ return false;
+
+ // Check that the given npobj is that event.
+ V8NPObject* object = reinterpret_cast<V8NPObject*>(npobj);
+ Event* given = V8Event::toNative(object->v8Object);
+ if (given != event)
+ return false;
+
+ // Check the execution frames are same origin.
+ V8Proxy* current = V8Proxy::retrieve(V8Proxy::retrieveFrameForCurrentContext());
+ Frame* frame = V8Proxy::retrieveFrame(context);
+ if (!current || !V8BindingSecurity::canAccessFrame(V8BindingState::Only(), frame, false))
+ return false;
+
+ const EventNames& names(eventNames());
+ const AtomicString& eventType(event->type());
+
+ enum DragTargetMouseEventId {
+ DragEnterId = 1, DragOverId = 2, DragLeaveId = 3, DropId = 4
+ };
+
+ // The event type should be a drag event.
+ if (eventType == names.dragenterEvent)
+ *eventId = DragEnterId;
+ else if (eventType == names.dragoverEvent)
+ *eventId = DragOverId;
+ else if (eventType == names.dragleaveEvent)
+ *eventId = DragLeaveId;
+ else if (eventType == names.dropEvent)
+ *eventId = DropId;
+ else
+ return false;
+
+ // Drag events are mouse events and should have a clipboard.
+ MouseEvent* me = static_cast<MouseEvent*>(event);
+ Clipboard* clipboard = me->clipboard();
+ if (!clipboard)
+ return false;
+
+ // And that clipboard should be accessible by WebKit policy.
+ ClipboardChromium* chrome = static_cast<ClipboardChromium*>(clipboard);
+ HashSet<String> accessible(chrome->types());
+ if (accessible.isEmpty())
+ return false;
+
+ RefPtr<ChromiumDataObject> dataObject(chrome->dataObject());
+ if (dataObject && data)
+ *data = WebDragData(dataObject);
+
+ return dataObject;
+}
+
+static bool getRangeImpl(NPObject* npobj, WebRange* range)
+{
+ V8NPObject* v8npobject = reinterpret_cast<V8NPObject*>(npobj);
+ v8::Handle<v8::Object> v8object(v8npobject->v8Object);
+ if (!V8Range::info.equals(V8DOMWrapper::domWrapperType(v8object)))
+ return false;
+
+ Range* native = V8Range::toNative(v8object);
+ if (!native)
+ return false;
+
+ *range = WebRange(native);
+ return true;
+}
+
+#endif
+
+bool WebBindings::getDragData(NPObject* event, int* eventId, WebDragData* data)
+{
+#if USE(V8)
+ return getDragDataImpl(event, eventId, data);
+#else
+ // Not supported on other ports (JSC, etc).
+ return false;
+#endif
+}
+
+bool WebBindings::isDragEvent(NPObject* event)
+{
+ int eventId;
+ return getDragData(event, &eventId, 0);
+}
+
+bool WebBindings::getRange(NPObject* range, WebRange* webrange)
+{
+#if USE(V8)
+ return getRangeImpl(range, webrange);
+#else
+ // Not supported on other ports (JSC, etc).
+ return false;
+#endif
+}
+
+void WebBindings::pushExceptionHandler(ExceptionHandler handler, void* data)
+{
+ WebCore::pushExceptionHandler(handler, data);
+}
+
+void WebBindings::popExceptionHandler()
+{
+ WebCore::popExceptionHandler();
+}
+
+} // namespace WebKit