/// <summary>
/// Defines a new object's own property from a property descriptor
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="propertyId">The ID of the property</param>
/// <param name="propertyDescriptor">The property descriptor</param>
/// <returns>Whether the property was defined</returns>
public bool DefineProperty(IeJsPropertyId propertyId, IeJsValue propertyDescriptor)
{
bool result;
IeJsErrorHelpers.ThrowIfError(IeNativeMethods.JsDefineProperty(this, propertyId, propertyDescriptor, out result));
return(result);
}
/// <summary>
/// Determines whether an object has a property
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="propertyId">The ID of the property</param>
/// <returns>Whether the object (or a prototype) has the property</returns>
public bool HasProperty(IeJsPropertyId propertyId)
{
bool hasProperty;
IeJsErrorHelpers.ThrowIfError(IeNativeMethods.JsHasProperty(this, propertyId, out hasProperty));
return(hasProperty);
}
/// <summary>
/// Deletes a object's property
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="propertyId">The ID of the property</param>
/// <param name="useStrictRules">The property set should follow strict mode rules</param>
/// <returns>Whether the property was deleted</returns>
public IeJsValue DeleteProperty(IeJsPropertyId propertyId, bool useStrictRules)
{
IeJsValue returnReference;
IeJsErrorHelpers.ThrowIfError(IeNativeMethods.JsDeleteProperty(this, propertyId, useStrictRules, out returnReference));
return(returnReference);
}
/// <summary>
/// Gets a object's property
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="id">The ID of the property</param>
/// <returns>The value of the property</returns>
public IeJsValue GetProperty(IeJsPropertyId id)
{
IeJsValue propertyReference;
IeJsErrorHelpers.ThrowIfError(IeNativeMethods.JsGetProperty(this, id, out propertyReference));
return(propertyReference);
}
/// <summary>
/// Gets a property descriptor for an object's own property
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="propertyId">The ID of the property</param>
/// <returns>The property descriptor</returns>
public IeJsValue GetOwnPropertyDescriptor(IeJsPropertyId propertyId)
{
IeJsValue descriptorReference;
IeJsErrorHelpers.ThrowIfError(IeNativeMethods.JsGetOwnPropertyDescriptor(this, propertyId, out descriptorReference));
return(descriptorReference);
}
public override void RemoveVariable(string variableName)
{
InvokeScript(() =>
{
IeJsValue globalObj = IeJsValue.GlobalObject;
IeJsPropertyId variableId = IeJsPropertyId.FromString(variableName);
if (globalObj.HasProperty(variableId))
{
globalObj.SetProperty(variableId, IeJsValue.Undefined, true);
}
});
}
public override object CallFunction(string functionName, params object[] args)
{
object result = InvokeScript(() =>
{
IeJsValue globalObj = IeJsValue.GlobalObject;
IeJsPropertyId functionId = IeJsPropertyId.FromString(functionName);
bool functionExist = globalObj.HasProperty(functionId);
if (!functionExist)
{
throw new JsRuntimeException(
string.Format(CommonStrings.Runtime_FunctionNotExist, functionName));
}
IeJsValue resultValue;
IeJsValue functionValue = globalObj.GetProperty(functionId);
if (args.Length > 0)
{
IeJsValue[] processedArgs = MapToScriptType(args);
foreach (IeJsValue processedArg in processedArgs)
{
AddReferenceToValue(processedArg);
}
IeJsValue[] allProcessedArgs = new[] { globalObj }.Concat(processedArgs).ToArray();
resultValue = functionValue.CallFunction(allProcessedArgs);
foreach (IeJsValue processedArg in processedArgs)
{
RemoveReferenceToValue(processedArg);
}
}
else
{
resultValue = functionValue.CallFunction(globalObj);
}
return(MapToHostType(resultValue));
});
return(result);
}
public override bool HasVariable(string variableName)
{
bool result = InvokeScript(() =>
{
IeJsValue globalObj = IeJsValue.GlobalObject;
IeJsPropertyId variableId = IeJsPropertyId.FromString(variableName);
bool variableExist = globalObj.HasProperty(variableId);
if (variableExist)
{
IeJsValue variableValue = globalObj.GetProperty(variableId);
variableExist = variableValue.ValueType != JsValueType.Undefined;
}
return(variableExist);
});
return(result);
}
/// <summary>
/// Sets a object's property
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="id">The ID of the property</param>
/// <param name="value">The new value of the property</param>
/// <param name="useStrictRules">The property set should follow strict mode rules</param>
public void SetProperty(IeJsPropertyId id, IeJsValue value, bool useStrictRules)
{
IeJsErrorHelpers.ThrowIfError(IeNativeMethods.JsSetProperty(this, id, value, useStrictRules));
}
internal static extern JsErrorCode JsGetOwnPropertyDescriptor(IeJsValue obj, IeJsPropertyId propertyId,
out IeJsValue propertyDescriptor);
internal static extern JsErrorCode JsGetPropertyNameFromId(IeJsPropertyId propertyId, out IntPtr buffer);
internal static extern JsErrorCode JsGetPropertyIdFromName(string name, out IeJsPropertyId propertyId);
internal static extern JsErrorCode JsDefineProperty(IeJsValue obj, IeJsPropertyId propertyId,
IeJsValue propertyDescriptor, out bool result);
internal static extern JsErrorCode JsDeleteProperty(IeJsValue obj, IeJsPropertyId propertyId,
bool useStrictRules, out IeJsValue result);
internal static extern JsErrorCode JsHasProperty(IeJsValue obj, IeJsPropertyId propertyId,
out bool hasProperty);
internal static extern JsErrorCode JsSetProperty(IeJsValue obj, IeJsPropertyId propertyId, IeJsValue value,
bool useStrictRules);
private JsRuntimeException ConvertJsExceptionToJsRuntimeException(
JsException jsException)
{
string message = jsException.Message;
string category = string.Empty;
int lineNumber = 0;
int columnNumber = 0;
string sourceFragment = string.Empty;
var jsScriptException = jsException as IeJsScriptException;
if (jsScriptException != null)
{
category = "Script error";
IeJsValue errorValue = jsScriptException.Error;
IeJsPropertyId messagePropertyId = IeJsPropertyId.FromString("message");
IeJsValue messagePropertyValue = errorValue.GetProperty(messagePropertyId);
string scriptMessage = messagePropertyValue.ConvertToString().ToString();
if (!string.IsNullOrWhiteSpace(scriptMessage))
{
message = string.Format("{0}: {1}", message.TrimEnd('.'), scriptMessage);
}
IeJsPropertyId linePropertyId = IeJsPropertyId.FromString("line");
if (errorValue.HasProperty(linePropertyId))
{
IeJsValue linePropertyValue = errorValue.GetProperty(linePropertyId);
lineNumber = (int)linePropertyValue.ConvertToNumber().ToDouble() + 1;
}
IeJsPropertyId columnPropertyId = IeJsPropertyId.FromString("column");
if (errorValue.HasProperty(columnPropertyId))
{
IeJsValue columnPropertyValue = errorValue.GetProperty(columnPropertyId);
columnNumber = (int)columnPropertyValue.ConvertToNumber().ToDouble() + 1;
}
IeJsPropertyId sourcePropertyId = IeJsPropertyId.FromString("source");
if (errorValue.HasProperty(sourcePropertyId))
{
IeJsValue sourcePropertyValue = errorValue.GetProperty(sourcePropertyId);
sourceFragment = sourcePropertyValue.ConvertToString().ToString();
}
}
else if (jsException is JsUsageException)
{
category = "Usage error";
}
else if (jsException is JsEngineException)
{
category = "Engine error";
}
else if (jsException is JsFatalException)
{
category = "Fatal error";
}
var jsEngineException = new JsRuntimeException(message, _engineModeName)
{
ErrorCode = ((uint)jsException.ErrorCode).ToString(CultureInfo.InvariantCulture),
Category = category,
LineNumber = lineNumber,
ColumnNumber = columnNumber,
SourceFragment = sourceFragment
};
return(jsEngineException);
}
internal static extern JsErrorCode JsGetProperty(IeJsValue obj, IeJsPropertyId propertyId,
out IeJsValue value);
