ScriptEventListener.cpp [plain text]
#include "config.h"
#include "ScriptEventListener.h"
#include "Attribute.h"
#include "Document.h"
#include "EventListener.h"
#include "Frame.h"
#include "ScriptScope.h"
#include "Tokenizer.h"
#include "V8AbstractEventListener.h"
#include "V8Binding.h"
#include "XSSAuditor.h"
namespace WebCore {
PassRefPtr<V8LazyEventListener> createAttributeEventListener(Node* node, Attribute* attr)
{
ASSERT(node);
ASSERT(attr);
if (attr->isNull())
return 0;
int lineNumber = 1;
int columnNumber = 0;
String sourceURL;
if (Frame* frame = node->document()->frame()) {
ScriptController* scriptController = frame->script();
if (!scriptController->canExecuteScripts())
return 0;
if (!scriptController->xssAuditor()->canCreateInlineEventListener(attr->localName().string(), attr->value())) {
return 0;
}
if (frame->document()->tokenizer()) {
lineNumber = frame->document()->tokenizer()->lineNumber();
columnNumber = frame->document()->tokenizer()->columnNumber();
}
sourceURL = node->document()->url().string();
}
return V8LazyEventListener::create(attr->localName().string(), node->isSVGElement(), attr->value(), sourceURL, lineNumber, columnNumber, WorldContextHandle(UseMainWorld));
}
PassRefPtr<V8LazyEventListener> createAttributeEventListener(Frame* frame, Attribute* attr)
{
if (!frame)
return 0;
ASSERT(attr);
if (attr->isNull())
return 0;
int lineNumber = 1;
int columnNumber = 0;
String sourceURL;
ScriptController* scriptController = frame->script();
if (!scriptController->canExecuteScripts())
return 0;
if (!scriptController->xssAuditor()->canCreateInlineEventListener(attr->localName().string(), attr->value())) {
return 0;
}
if (frame->document()->tokenizer()) {
lineNumber = frame->document()->tokenizer()->lineNumber();
columnNumber = frame->document()->tokenizer()->columnNumber();
}
sourceURL = frame->document()->url().string();
return V8LazyEventListener::create(attr->localName().string(), frame->document()->isSVGDocument(), attr->value(), sourceURL, lineNumber, columnNumber, WorldContextHandle(UseMainWorld));
}
String getEventListenerHandlerBody(ScriptExecutionContext* context, ScriptState* scriptState, EventListener* listener)
{
if (listener->type() != EventListener::JSEventListenerType)
return "";
ScriptScope scope(scriptState);
V8AbstractEventListener* v8Listener = static_cast<V8AbstractEventListener*>(listener);
v8::Handle<v8::Object> function = v8Listener->getListenerObject(context);
if (function.IsEmpty())
return "";
return toWebCoreStringWithNullCheck(function);
}
}