InjectedScriptBase.cpp [plain text]
#include "config.h"
#if ENABLE(INSPECTOR)
#include "InjectedScriptBase.h"
#include "InspectorInstrumentation.h"
#include "InspectorValues.h"
#include "ScriptFunctionCall.h"
#include <runtime/JSGlobalObject.h>
#include <wtf/text/WTFString.h>
using WebCore::TypeBuilder::Runtime::RemoteObject;
namespace WebCore {
InjectedScriptBase::InjectedScriptBase(const String& name)
: m_name(name)
, m_inspectedStateAccessCheck(0)
{
}
InjectedScriptBase::InjectedScriptBase(const String& name, ScriptObject injectedScriptObject, InspectedStateAccessCheck accessCheck)
: m_name(name)
, m_injectedScriptObject(injectedScriptObject)
, m_inspectedStateAccessCheck(accessCheck)
{
}
void InjectedScriptBase::initialize(ScriptObject injectedScriptObject, InspectedStateAccessCheck accessCheck)
{
m_injectedScriptObject = injectedScriptObject;
m_inspectedStateAccessCheck = accessCheck;
}
bool InjectedScriptBase::canAccessInspectedWindow() const
{
return m_inspectedStateAccessCheck(m_injectedScriptObject.scriptState());
}
const ScriptObject& InjectedScriptBase::injectedScriptObject() const
{
return m_injectedScriptObject;
}
ScriptValue InjectedScriptBase::callFunctionWithEvalEnabled(ScriptFunctionCall& function, bool& hadException) const
{
ScriptExecutionContext* scriptExecutionContext = scriptExecutionContextFromScriptState(m_injectedScriptObject.scriptState());
InspectorInstrumentationCookie cookie = InspectorInstrumentation::willCallFunction(scriptExecutionContext, name(), 1);
ScriptState* scriptState = m_injectedScriptObject.scriptState();
bool evalIsDisabled = false;
if (scriptState) {
evalIsDisabled = !scriptState->lexicalGlobalObject()->evalEnabled();
if (evalIsDisabled)
scriptState->lexicalGlobalObject()->setEvalEnabled(true);
}
ScriptValue resultValue = function.call(hadException);
if (evalIsDisabled)
scriptState->lexicalGlobalObject()->setEvalEnabled(false);
InspectorInstrumentation::didCallFunction(cookie);
return resultValue;
}
void InjectedScriptBase::makeCall(ScriptFunctionCall& function, RefPtr<InspectorValue>* result)
{
if (hasNoValue() || !canAccessInspectedWindow()) {
*result = InspectorValue::null();
return;
}
bool hadException = false;
ScriptValue resultValue = callFunctionWithEvalEnabled(function, hadException);
ASSERT(!hadException);
if (!hadException) {
*result = resultValue.toInspectorValue(m_injectedScriptObject.scriptState());
if (!*result)
*result = InspectorString::create(String::format("Object has too long reference chain(must not be longer than %d)", InspectorValue::maxDepth));
} else
*result = InspectorString::create("Exception while making a call.");
}
void InjectedScriptBase::makeEvalCall(ErrorString* errorString, ScriptFunctionCall& function, RefPtr<TypeBuilder::Runtime::RemoteObject>* objectResult, TypeBuilder::OptOutput<bool>* wasThrown)
{
RefPtr<InspectorValue> result;
makeCall(function, &result);
if (!result) {
*errorString = "Internal error: result value is empty";
return;
}
if (result->type() == InspectorValue::TypeString) {
result->asString(errorString);
ASSERT(errorString->length());
return;
}
RefPtr<InspectorObject> resultPair = result->asObject();
if (!resultPair) {
*errorString = "Internal error: result is not an Object";
return;
}
RefPtr<InspectorObject> resultObj = resultPair->getObject("result");
bool wasThrownVal = false;
if (!resultObj || !resultPair->getBoolean("wasThrown", &wasThrownVal)) {
*errorString = "Internal error: result is not a pair of value and wasThrown flag";
return;
}
*objectResult = TypeBuilder::Runtime::RemoteObject::runtimeCast(resultObj);
*wasThrown = wasThrownVal;
}
}
#endif // ENABLE(INSPECTOR)