InjectedScript.cpp [plain text]
#include "config.h"
#if ENABLE(INSPECTOR)
#include "InjectedScript.h"
#include "DOMWindow.h"
#include "Frame.h"
#include "InjectedScriptHost.h"
#include "InjectedScriptManager.h"
#include "InspectorInstrumentation.h"
#include "InspectorValues.h"
#include "Node.h"
#include "PlatformString.h"
#include "ScriptFunctionCall.h"
using WebCore::TypeBuilder::Array;
using WebCore::TypeBuilder::Debugger::CallFrame;
using WebCore::TypeBuilder::Runtime::PropertyDescriptor;
using WebCore::TypeBuilder::Debugger::FunctionDetails;
using WebCore::TypeBuilder::Runtime::RemoteObject;
namespace WebCore {
InjectedScript::InjectedScript()
: m_inspectedStateAccessCheck(0)
{
}
InjectedScript::InjectedScript(ScriptObject injectedScriptObject, InspectedStateAccessCheck accessCheck)
: m_injectedScriptObject(injectedScriptObject)
, m_inspectedStateAccessCheck(accessCheck)
{
}
void InjectedScript::evaluate(ErrorString* errorString, const String& expression, const String& objectGroup, bool includeCommandLineAPI, bool returnByValue, RefPtr<TypeBuilder::Runtime::RemoteObject>* result, TypeBuilder::OptOutput<bool>* wasThrown)
{
ScriptFunctionCall function(m_injectedScriptObject, "evaluate");
function.appendArgument(expression);
function.appendArgument(objectGroup);
function.appendArgument(includeCommandLineAPI);
function.appendArgument(returnByValue);
makeEvalCall(errorString, function, result, wasThrown);
}
void InjectedScript::callFunctionOn(ErrorString* errorString, const String& objectId, const String& expression, const String& arguments, bool returnByValue, RefPtr<TypeBuilder::Runtime::RemoteObject>* result, TypeBuilder::OptOutput<bool>* wasThrown)
{
ScriptFunctionCall function(m_injectedScriptObject, "callFunctionOn");
function.appendArgument(objectId);
function.appendArgument(expression);
function.appendArgument(arguments);
function.appendArgument(returnByValue);
makeEvalCall(errorString, function, result, wasThrown);
}
void InjectedScript::evaluateOnCallFrame(ErrorString* errorString, const ScriptValue& callFrames, const String& callFrameId, const String& expression, const String& objectGroup, bool includeCommandLineAPI, bool returnByValue, RefPtr<RemoteObject>* result, TypeBuilder::OptOutput<bool>* wasThrown)
{
ScriptFunctionCall function(m_injectedScriptObject, "evaluateOnCallFrame");
function.appendArgument(callFrames);
function.appendArgument(callFrameId);
function.appendArgument(expression);
function.appendArgument(objectGroup);
function.appendArgument(includeCommandLineAPI);
function.appendArgument(returnByValue);
makeEvalCall(errorString, function, result, wasThrown);
}
void InjectedScript::getFunctionDetails(ErrorString* errorString, const String& functionId, RefPtr<FunctionDetails>* result)
{
ScriptFunctionCall function(m_injectedScriptObject, "getFunctionDetails");
function.appendArgument(functionId);
RefPtr<InspectorValue> resultValue;
makeCall(function, &resultValue);
if (!resultValue || resultValue->type() != InspectorValue::TypeObject) {
if (!resultValue->asString(errorString))
*errorString = "Internal error";
return;
}
*result = FunctionDetails::runtimeCast(resultValue);
}
void InjectedScript::getProperties(ErrorString* errorString, const String& objectId, bool ownProperties, RefPtr<Array<PropertyDescriptor> >* properties)
{
ScriptFunctionCall function(m_injectedScriptObject, "getProperties");
function.appendArgument(objectId);
function.appendArgument(ownProperties);
RefPtr<InspectorValue> result;
makeCall(function, &result);
if (!result || result->type() != InspectorValue::TypeArray) {
*errorString = "Internal error";
return;
}
*properties = Array<PropertyDescriptor>::runtimeCast(result);
}
Node* InjectedScript::nodeForObjectId(const String& objectId)
{
if (hasNoValue() || !canAccessInspectedWindow())
return 0;
ScriptFunctionCall function(m_injectedScriptObject, "nodeForObjectId");
function.appendArgument(objectId);
bool hadException = false;
ScriptValue resultValue = callFunctionWithEvalEnabled(function, hadException);
ASSERT(!hadException);
return InjectedScriptHost::scriptValueAsNode(resultValue);
}
void InjectedScript::releaseObject(const String& objectId)
{
ScriptFunctionCall function(m_injectedScriptObject, "releaseObject");
function.appendArgument(objectId);
RefPtr<InspectorValue> result;
makeCall(function, &result);
}
#if ENABLE(JAVASCRIPT_DEBUGGER)
PassRefPtr<Array<CallFrame> > InjectedScript::wrapCallFrames(const ScriptValue& callFrames)
{
ASSERT(!hasNoValue());
ScriptFunctionCall function(m_injectedScriptObject, "wrapCallFrames");
function.appendArgument(callFrames);
bool hadException = false;
ScriptValue callFramesValue = callFunctionWithEvalEnabled(function, hadException);
ASSERT(!hadException);
RefPtr<InspectorValue> result = callFramesValue.toInspectorValue(m_injectedScriptObject.scriptState());
if (result->type() == InspectorValue::TypeArray)
return Array<CallFrame>::runtimeCast(result);
return Array<CallFrame>::create();
}
#endif
PassRefPtr<TypeBuilder::Runtime::RemoteObject> InjectedScript::wrapObject(ScriptValue value, const String& groupName) const
{
ASSERT(!hasNoValue());
ScriptFunctionCall wrapFunction(m_injectedScriptObject, "wrapObject");
wrapFunction.appendArgument(value);
wrapFunction.appendArgument(groupName);
wrapFunction.appendArgument(canAccessInspectedWindow());
bool hadException = false;
ScriptValue r = callFunctionWithEvalEnabled(wrapFunction, hadException);
if (hadException) {
return 0;
}
RefPtr<InspectorObject> rawResult = r.toInspectorValue(m_injectedScriptObject.scriptState())->asObject();
return TypeBuilder::Runtime::RemoteObject::runtimeCast(rawResult);
}
PassRefPtr<TypeBuilder::Runtime::RemoteObject> InjectedScript::wrapNode(Node* node, const String& groupName)
{
return wrapObject(nodeAsScriptValue(node), groupName);
}
PassRefPtr<TypeBuilder::Runtime::RemoteObject> InjectedScript::wrapSerializedObject(SerializedScriptValue* serializedScriptValue, const String& groupName) const
{
ScriptValue scriptValue = serializedScriptValue->deserializeForInspector(m_injectedScriptObject.scriptState());
return scriptValue.hasNoValue() ? 0 : wrapObject(scriptValue, groupName);
}
void InjectedScript::inspectNode(Node* node)
{
ASSERT(!hasNoValue());
ScriptFunctionCall function(m_injectedScriptObject, "inspectNode");
function.appendArgument(nodeAsScriptValue(node));
RefPtr<InspectorValue> result;
makeCall(function, &result);
}
void InjectedScript::releaseObjectGroup(const String& objectGroup)
{
ASSERT(!hasNoValue());
ScriptFunctionCall releaseFunction(m_injectedScriptObject, "releaseObjectGroup");
releaseFunction.appendArgument(objectGroup);
bool hadException = false;
callFunctionWithEvalEnabled(releaseFunction, hadException);
ASSERT(!hadException);
}
bool InjectedScript::canAccessInspectedWindow() const
{
return m_inspectedStateAccessCheck(m_injectedScriptObject.scriptState());
}
ScriptValue InjectedScript::callFunctionWithEvalEnabled(ScriptFunctionCall& function, bool& hadException) const
{
ScriptExecutionContext* scriptExecutionContext = scriptExecutionContextFromScriptState(m_injectedScriptObject.scriptState());
InspectorInstrumentationCookie cookie = InspectorInstrumentation::willCallFunction(scriptExecutionContext, "InjectedScript", 1);
ScriptState* scriptState = m_injectedScriptObject.scriptState();
bool evalIsDisabled = false;
if (scriptState) {
evalIsDisabled = !evalEnabled(scriptState);
if (evalIsDisabled)
setEvalEnabled(scriptState, true);
}
ScriptValue resultValue = function.call(hadException);
if (evalIsDisabled)
setEvalEnabled(scriptState, false);
InspectorInstrumentation::didCallFunction(cookie);
return resultValue;
}
void InjectedScript::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 InjectedScript::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);
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;
}
ScriptValue InjectedScript::nodeAsScriptValue(Node* node)
{
return InjectedScriptHost::nodeAsScriptValue(m_injectedScriptObject.scriptState(), node);
}
}
#endif // ENABLE(INSPECTOR)