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/*
* Copyright (C) 2007-2009 Google Inc. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
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*
* * 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
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "bindings/v8/ScheduledAction.h"
#include "bindings/v8/ScriptController.h"
#include "bindings/v8/ScriptSourceCode.h"
#include "bindings/v8/V8Binding.h"
#include "bindings/v8/V8GCController.h"
#include "bindings/v8/V8ScriptRunner.h"
#include "core/dom/Document.h"
#include "core/dom/ExecutionContext.h"
#include "core/frame/Frame.h"
#include "core/workers/WorkerGlobalScope.h"
#include "core/workers/WorkerThread.h"
#include "platform/TraceEvent.h"
namespace WebCore {
ScheduledAction::ScheduledAction(v8::Handle<v8::Context> context, v8::Handle<v8::Function> function, int argc, v8::Handle<v8::Value> argv[], v8::Isolate* isolate)
: m_context(isolate, context)
, m_function(isolate, function)
, m_code(String(), KURL(), TextPosition::belowRangePosition())
, m_isolate(isolate)
{
m_args.reserveCapacity(argc);
for (int i = 0; i < argc; ++i)
m_args.append(UnsafePersistent<v8::Value>(m_isolate, argv[i]));
}
ScheduledAction::ScheduledAction(v8::Handle<v8::Context> context, const String& code, const KURL& url, v8::Isolate* isolate)
: m_context(isolate, context)
, m_code(code, url)
, m_isolate(isolate)
{
}
ScheduledAction::~ScheduledAction()
{
for (size_t i = 0; i < m_args.size(); ++i)
m_args[i].dispose();
}
void ScheduledAction::execute(ExecutionContext* context)
{
if (context->isDocument()) {
Frame* frame = toDocument(context)->frame();
if (!frame)
return;
if (!frame->script().canExecuteScripts(AboutToExecuteScript))
return;
execute(frame);
} else {
execute(toWorkerGlobalScope(context));
}
}
void ScheduledAction::execute(Frame* frame)
{
v8::HandleScope handleScope(m_isolate);
v8::Handle<v8::Context> context = m_context.newLocal(m_isolate);
if (context.IsEmpty())
return;
TRACE_EVENT0("v8", "ScheduledAction::execute");
if (!m_function.isEmpty()) {
v8::Context::Scope scope(context);
Vector<v8::Handle<v8::Value> > args;
createLocalHandlesForArgs(&args);
frame->script().callFunction(m_function.newLocal(m_isolate), context->Global(), args.size(), args.data());
} else {
frame->script().executeScriptAndReturnValue(context, ScriptSourceCode(m_code));
}
// The frame might be invalid at this point because JavaScript could have released it.
}
void ScheduledAction::execute(WorkerGlobalScope* worker)
{
ASSERT(worker->thread()->isCurrentThread());
v8::HandleScope handleScope(m_isolate);
v8::Handle<v8::Context> context = m_context.newLocal(m_isolate);
ASSERT(!context.IsEmpty());
v8::Context::Scope scope(context);
if (!m_function.isEmpty()) {
Vector<v8::Handle<v8::Value> > args;
createLocalHandlesForArgs(&args);
V8ScriptRunner::callFunction(m_function.newLocal(m_isolate), worker, context->Global(), args.size(), args.data(), m_isolate);
} else
worker->script()->evaluate(m_code);
}
void ScheduledAction::createLocalHandlesForArgs(Vector<v8::Handle<v8::Value> >* handles)
{
handles->reserveCapacity(m_args.size());
for (size_t i = 0; i < m_args.size(); ++i)
handles->append(m_args[i].newLocal(m_isolate));
}
} // namespace WebCore