JSDOMGlobalObjectTask.cpp [plain text]
#include "config.h"
#include "JSDOMGlobalObjectTask.h"
#include "ActiveDOMCallback.h"
#include "JSMainThreadExecState.h"
#include <heap/StrongInlines.h>
#include <runtime/Microtask.h>
#include <wtf/Ref.h>
using namespace JSC;
namespace WebCore {
class JSGlobalObjectCallback final : public RefCounted<JSGlobalObjectCallback>, private ActiveDOMCallback {
public:
static Ref<JSGlobalObjectCallback> create(JSDOMGlobalObject* globalObject, Ref<Microtask>&& task)
{
return adoptRef(*new JSGlobalObjectCallback(globalObject, WTFMove(task)));
}
void call()
{
if (!canInvokeCallback())
return;
Ref<JSGlobalObjectCallback> protectedThis(*this);
JSLockHolder lock(m_globalObject->vm());
ExecState* exec = m_globalObject->globalExec();
ScriptExecutionContext* context = m_globalObject->scriptExecutionContext();
if (!context)
return;
if (context->isDocument())
JSMainThreadExecState::runTask(exec, m_task);
else
m_task->run(exec);
ASSERT(!exec->hadException());
}
private:
JSGlobalObjectCallback(JSDOMGlobalObject* globalObject, Ref<Microtask>&& task)
: ActiveDOMCallback(globalObject->scriptExecutionContext())
, m_globalObject(globalObject->vm(), globalObject)
, m_task(WTFMove(task))
{
}
Strong<JSDOMGlobalObject> m_globalObject;
Ref<Microtask> m_task;
};
JSGlobalObjectTask::JSGlobalObjectTask(JSDOMGlobalObject* globalObject, Ref<Microtask>&& task)
: ScriptExecutionContext::Task({ })
{
RefPtr<JSGlobalObjectCallback> callback = JSGlobalObjectCallback::create(globalObject, WTFMove(task));
m_task = [callback] (ScriptExecutionContext&) {
callback->call();
};
}
}