InjectedScript.cpp

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
 * met:
 *
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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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#include "config.h"

#if ENABLE(INSPECTOR)

#include "InjectedScript.h"

#include "InjectedScriptHost.h"
#include "InjectedScriptModule.h"
#include "InspectorValues.h"
#include "Node.h"
#include "ScriptFunctionCall.h"
#include "SerializedScriptValue.h"
#include <wtf/text/WTFString.h>

using WebCore::TypeBuilder::Array;
using WebCore::TypeBuilder::Debugger::CallFrame;
using WebCore::TypeBuilder::Runtime::PropertyDescriptor;
using WebCore::TypeBuilder::Runtime::InternalPropertyDescriptor;
using WebCore::TypeBuilder::Debugger::FunctionDetails;
using WebCore::TypeBuilder::Runtime::RemoteObject;

namespace WebCore {

InjectedScript::InjectedScript()
    : InjectedScriptBase("InjectedScript")
{
}

InjectedScript::InjectedScript(ScriptObject injectedScriptObject, InspectedStateAccessCheck accessCheck)
    : InjectedScriptBase("InjectedScript", injectedScriptObject, 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(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(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(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::restartFrame(ErrorString* errorString, const ScriptValue& callFrames, const String& callFrameId, RefPtr<InspectorObject>* result)
{
    ScriptFunctionCall function(injectedScriptObject(), "restartFrame");
    function.appendArgument(callFrames);
    function.appendArgument(callFrameId);
    RefPtr<InspectorValue> resultValue;
    makeCall(function, &resultValue);
    if (resultValue) {
        if (resultValue->type() == InspectorValue::TypeString) {
            resultValue->asString(errorString);
            return;
        }
        if (resultValue->type() == InspectorValue::TypeObject) {
            *result = resultValue->asObject();
            return;
        }
    }
    *errorString = "Internal error";
}

void InjectedScript::getFunctionDetails(ErrorString* errorString, const String& functionId, RefPtr<FunctionDetails>* result)
{
    ScriptFunctionCall function(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(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);
}

void InjectedScript::getInternalProperties(ErrorString* errorString, const String& objectId, RefPtr<Array<InternalPropertyDescriptor> >* properties)
{
    ScriptFunctionCall function(injectedScriptObject(), "getInternalProperties");
    function.appendArgument(objectId);

    RefPtr<InspectorValue> result;
    makeCall(function, &result);
    if (!result || result->type() != InspectorValue::TypeArray) {
        *errorString = "Internal error";
        return;
    }
    RefPtr<Array<InternalPropertyDescriptor> > array = Array<InternalPropertyDescriptor>::runtimeCast(result);
    if (array->length() > 0)
        *properties = array;
}

Node* InjectedScript::nodeForObjectId(const String& objectId)
{
    if (hasNoValue() || !canAccessInspectedWindow())
        return 0;

    ScriptFunctionCall function(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(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(injectedScriptObject(), "wrapCallFrames");
    function.appendArgument(callFrames);
    bool hadException = false;
    ScriptValue callFramesValue = callFunctionWithEvalEnabled(function, hadException);
    ASSERT(!hadException);
    RefPtr<InspectorValue> result = callFramesValue.toInspectorValue(scriptState());
    if (result->type() == InspectorValue::TypeArray)
        return Array<CallFrame>::runtimeCast(result);
    return Array<CallFrame>::create();
}
#endif

PassRefPtr<TypeBuilder::Runtime::RemoteObject> InjectedScript::wrapObject(const ScriptValue& value, const String& groupName, bool generatePreview) const
{
    ASSERT(!hasNoValue());
    ScriptFunctionCall wrapFunction(injectedScriptObject(), "wrapObject");
    wrapFunction.appendArgument(value);
    wrapFunction.appendArgument(groupName);
    wrapFunction.appendArgument(canAccessInspectedWindow());
    wrapFunction.appendArgument(generatePreview);
    bool hadException = false;
    ScriptValue r = callFunctionWithEvalEnabled(wrapFunction, hadException);
    if (hadException) {
        return 0;
    }
    RefPtr<InspectorObject> rawResult = r.toInspectorValue(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(scriptState());
    return scriptValue.hasNoValue() ? 0 : wrapObject(scriptValue, groupName);
}

ScriptValue InjectedScript::findObjectById(const String& objectId) const
{
    ASSERT(!hasNoValue());
    ScriptFunctionCall function(injectedScriptObject(), "findObjectById");
    function.appendArgument(objectId);

    bool hadException = false;
    ScriptValue resultValue = callFunctionWithEvalEnabled(function, hadException);
    ASSERT(!hadException);
    return resultValue;
}

void InjectedScript::inspectNode(Node* node)
{
    ASSERT(!hasNoValue());
    ScriptFunctionCall function(injectedScriptObject(), "inspectNode");
    function.appendArgument(nodeAsScriptValue(node));
    RefPtr<InspectorValue> result;
    makeCall(function, &result);
}

void InjectedScript::releaseObjectGroup(const String& objectGroup)
{
    ASSERT(!hasNoValue());
    ScriptFunctionCall releaseFunction(injectedScriptObject(), "releaseObjectGroup");
    releaseFunction.appendArgument(objectGroup);
    bool hadException = false;
    callFunctionWithEvalEnabled(releaseFunction, hadException);
    ASSERT(!hadException);
}

ScriptValue InjectedScript::nodeAsScriptValue(Node* node)
{
    return InjectedScriptHost::nodeAsScriptValue(scriptState(), node);
}

} // namespace WebCore

#endif // ENABLE(INSPECTOR)