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/*
* 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 "ScriptEventListener.h"
#include "Attribute.h"
#include "Document.h"
#include "EventListener.h"
#include "Frame.h"
#include "ScriptScope.h"
#include "DocumentParser.h"
#include "V8AbstractEventListener.h"
#include "V8Binding.h"
namespace WebCore {
PassRefPtr<V8LazyEventListener> createAttributeEventListener(Node* node, Attribute* attr)
{
ASSERT(node);
ASSERT(attr);
if (attr->isNull())
return 0;
// FIXME: Very strange: we initialize zero-based number with '1'.
TextPosition0 position(WTF::ZeroBasedNumber::fromZeroBasedInt(1), WTF::ZeroBasedNumber::base());
String sourceURL;
if (Frame* frame = node->document()->frame()) {
ScriptController* scriptController = frame->script();
if (!scriptController->canExecuteScripts(AboutToExecuteScript))
return 0;
position = scriptController->eventHandlerPosition();
sourceURL = node->document()->url().string();
}
return V8LazyEventListener::create(attr->localName().string(), node->isSVGElement(), attr->value(), sourceURL, position, WorldContextHandle(UseMainWorld));
}
PassRefPtr<V8LazyEventListener> createAttributeEventListener(Frame* frame, Attribute* attr)
{
if (!frame)
return 0;
ASSERT(attr);
if (attr->isNull())
return 0;
ScriptController* scriptController = frame->script();
if (!scriptController->canExecuteScripts(AboutToExecuteScript))
return 0;
TextPosition0 position = scriptController->eventHandlerPosition();
String sourceURL = frame->document()->url().string();
return V8LazyEventListener::create(attr->localName().string(), frame->document()->isSVGDocument(), attr->value(), sourceURL, position, WorldContextHandle(UseMainWorld));
}
String eventListenerHandlerBody(Document* document, EventListener* listener)
{
if (listener->type() != EventListener::JSEventListenerType)
return "";
v8::HandleScope scope;
V8AbstractEventListener* v8Listener = static_cast<V8AbstractEventListener*>(listener);
v8::Handle<v8::Context> context = toV8Context(document, v8Listener->worldContext());
v8::Context::Scope contextScope(context);
v8::Handle<v8::Object> function = v8Listener->getListenerObject(document);
if (function.IsEmpty())
return "";
return toWebCoreStringWithNullCheck(function);
}
bool eventListenerHandlerLocation(Document* document, EventListener* listener, String& sourceName, int& lineNumber)
{
if (listener->type() != EventListener::JSEventListenerType)
return false;
v8::HandleScope scope;
V8AbstractEventListener* v8Listener = static_cast<V8AbstractEventListener*>(listener);
v8::Handle<v8::Context> context = toV8Context(document, v8Listener->worldContext());
v8::Context::Scope contextScope(context);
v8::Handle<v8::Object> object = v8Listener->getListenerObject(document);
if (object.IsEmpty() || !object->IsFunction())
return false;
v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(object);
v8::ScriptOrigin origin = function->GetScriptOrigin();
if (!origin.ResourceName().IsEmpty()) {
sourceName = toWebCoreString(origin.ResourceName());
lineNumber = function->GetScriptLineNumber() + 1;
return true;
}
return false;
}
} // namespace WebCore
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