/// <summary>
/// Evaluates the specified JavaScript code using this context's global object.
/// On success |retval| will be set to the return value, if any, and the
/// function will return true. On failure |exception| will be set to the
/// exception, if any, and the function will return false.
/// </summary>
public bool Eval(string code, out CefV8Value retval, out CefV8Exception exception)
{
cef_v8value_t* n_retval = null;
cef_v8exception_t* n_exception = null;
fixed (char* code_str = code)
{
var n_code = new cef_string_t(code_str, code != null ? code.Length : 0);
var n_result = cef_v8context_t.invoke_eval(this.ptr, &n_code, &n_retval, &n_exception);
if (n_result != 0)
{
retval = CefV8Value.From(n_retval);
exception = null;
return true;
}
else
{
retval = null;
exception = CefV8Exception.From(n_exception);
return false;
}
}
}
/// <summary>
/// Execute with the specified argument list and return value. Return
/// true if the method was handled. To invoke V8 callback functions
/// outside the scope of this method you need to keep references to the
/// current V8 context (CefV8Context) along with any necessary callback
/// objects.
/// </summary>
internal virtual int execute(cef_v8handler_t* self, /*const*/ cef_string_t* name, cef_v8value_t* @object, int argumentCount, cef_v8value_t* /*const*/ * arguments, cef_v8value_t** retval, cef_string_t* exception)
{
ThrowIfObjectDisposed();
var m_name = cef_string_t.ToString(name);
var m_obj = CefV8Value.From(@object);
CefV8Value[] m_arguments;
if (argumentCount == 0) { m_arguments = null; }
else
{
m_arguments = new CefV8Value[argumentCount];
for (var i = 0; i < argumentCount; i++)
{
m_arguments[i] = CefV8Value.From(arguments[i]);
}
}
CefV8Value m_returnValue;
string m_exception;
var handled = this.Execute(m_name, m_obj, m_arguments, out m_returnValue, out m_exception);
if (handled)
{
if (m_exception != null)
{
cef_string_t.Copy(m_exception, exception);
}
else if (m_returnValue != null)
{
*retval = m_returnValue.GetNativePointerAndAddRef();
}
}
return handled ? 1 : 0;
}
/// <summary>
/// Create a new CefV8Value object of type double.
/// </summary>
public static CefV8Value CreateDouble(double value)
{
return(CefV8Value.From(
NativeMethods.cef_v8value_create_double(value)
));
}
/// <summary>
/// Associates a value with the specified identifier and returns true on
/// success. Returns false if this method is called incorrectly or an exception
/// is thrown. For read-only values this method will return true even though
/// assignment failed.
/// </summary>
public bool SetValue(int index, CefV8Value value)
{
ThrowIfObjectIsInvalid();
return cef_v8value_t.invoke_set_value_byindex(this.ptr, index, value.GetNativePointerAndAddRef()) != 0;
}
/// <summary>
/// Create a new CefV8Value object of type unsigned int.
/// </summary>
public static CefV8Value CreateUInt(uint value)
{
return(CefV8Value.From(
NativeMethods.cef_v8value_create_uint(value)
));
}
public static sbyte ToSByte(CefV8Value value)
{
return(ToSByte(value.NativePointer));
}
/// <summary>
/// Called to set an accessor value.
/// |name| is the name of the property being accessed.
/// |value| is the new value being assigned to this property.
/// |object| is the This() object from V8's AccessorInfo structure.
/// Return true if handled.
/// </summary>
protected virtual bool Set(string name, CefV8Value obj, CefV8Value value, out string exception)
{
exception = null;
return false;
}
public static float? ToNullableSingle(CefV8Value value)
{
return ToNullableSingle(value.NativePointer);
}
public static string ToString(CefV8Value value)
{
return ToString(value.NativePointer);
}
public static bool?ToNullableBoolean(CefV8Value value)
{
return(ToNullableBoolean(value.NativePointer));
}
public static int?ToNullableInt32(CefV8Value value)
{
return(ToNullableInt32(value.NativePointer));
}
public static char ToChar(CefV8Value value)
{
return(ToChar(value.NativePointer));
}
public static float ToSingle(CefV8Value value)
{
return(ToSingle(value.NativePointer));
}
public static CefV8Value ToV8Value(ushort value)
{
return(CefV8Value.From(ToNativeV8Value(value)));
}
public static ushort ToUInt16(CefV8Value value)
{
return(ToUInt16(value.NativePointer));
}
public static CefV8Value ToV8Value(sbyte value)
{
return(CefV8Value.From(ToNativeV8Value(value)));
}
public static DateTime? ToNullableDateTime(CefV8Value value)
{
return ToNullableDateTime(value.NativePointer);
}
public static int ToInt32(CefV8Value value)
{
return(ToInt32(value.NativePointer));
}
public static int? ToNullableInt32(CefV8Value value)
{
return ToNullableInt32(value.NativePointer);
}
public static double?ToNullableDouble(CefV8Value value)
{
return(ToNullableDouble(value.NativePointer));
}
public static object ToObject(CefV8Value value)
{
return ToObject(value.NativePointer);
}
public static DateTime?ToNullableDateTime(CefV8Value value)
{
return(ToNullableDateTime(value.NativePointer));
}
public static byte ToByte(CefV8Value value)
{
return ToByte(value.NativePointer);
}
public static CefV8Value ToV8Value(DateTime?value)
{
return(CefV8Value.From(ToNativeV8Value(value)));
}
public static bool? ToNullableBoolean(CefV8Value value)
{
return ToNullableBoolean(value.NativePointer);
}
public static sbyte?ToNullableSByte(CefV8Value value)
{
return(ToNullableSByte(value.NativePointer));
}
/// <summary>
/// Returns true if this object is pointing to the same handle as |that| object.
/// </summary>
public bool IsSame(CefV8Value that)
{
ThrowIfObjectIsInvalid();
return cef_v8value_t.invoke_is_same(this.ptr, that.GetNativePointerAndAddRef()) != 0;
}
public static ushort?ToNullableUInt16(CefV8Value value)
{
return(ToNullableUInt16(value.NativePointer));
}
/// <summary>
/// Execute with the specified argument list and return value.
/// Return true if the method was handled.
/// To invoke V8 callback functions outside the scope of this method you need to keep references to the current V8 context (CefV8Context) along with any necessary callback objects.
/// </summary>
protected virtual bool Execute(string name, CefV8Value obj, CefV8Value[] arguments, out CefV8Value returnValue, out string exception)
{
returnValue = null;
exception = null;
return false;
}
public static char?ToNullableChar(CefV8Value value)
{
return(ToNullableChar(value.NativePointer));
}
/// <summary>
/// Associates a value with the specified identifier and returns true on
/// success. Returns false if this method is called incorrectly or an exception
/// is thrown. For read-only values this method will return true even though
/// assignment failed.
/// </summary>
public bool SetValue(int index, CefV8Value value)
{
ThrowIfObjectIsInvalid();
return(cef_v8value_t.invoke_set_value_byindex(this.ptr, index, value.GetNativePointerAndAddRef()) != 0);
}
public static double ToDouble(CefV8Value value)
{
return(ToDouble(value.NativePointer));
}
public static char? ToNullableChar(CefV8Value value)
{
return ToNullableChar(value.NativePointer);
}
public static float?ToNullableSingle(CefV8Value value)
{
return(ToNullableSingle(value.NativePointer));
}
public static double? ToNullableDouble(CefV8Value value)
{
return ToNullableDouble(value.NativePointer);
}
public static CefV8Value ToV8Value(float?value)
{
return(CefV8Value.From(ToNativeV8Value(value)));
}
public static sbyte? ToNullableSByte(CefV8Value value)
{
return ToNullableSByte(value.NativePointer);
}
/// <summary>
/// Returns the global object for this context. The context must be entered
/// before calling this method.
/// </summary>
public CefV8Value GetGlobal()
{
return(CefV8Value.From(
cef_v8context_t.invoke_get_global(this.ptr)
));
}
public static ushort? ToNullableUInt16(CefV8Value value)
{
return ToNullableUInt16(value.NativePointer);
}
/// <summary>
/// Execute with the specified argument list and return value.
/// Return true if the method was handled.
/// To invoke V8 callback functions outside the scope of this method you need to keep references to the current V8 context (CefV8Context) along with any necessary callback objects.
/// </summary>
protected virtual bool Execute(string name, CefV8Value obj, CefV8Value[] arguments, out CefV8Value returnValue, out string exception)
{
returnValue = null;
exception = null;
return(false);
}
public static float ToSingle(CefV8Value value)
{
return ToSingle(value.NativePointer);
}
public static DateTime ToDateTime(CefV8Value value)
{
return ToDateTime(value.NativePointer);
}
public static bool ToBoolean(CefV8Value value)
{
return ToBoolean(value.NativePointer);
}
public static short ToInt16(CefV8Value value)
{
return ToInt16(value.NativePointer);
}
public static char ToChar(CefV8Value value)
{
return ToChar(value.NativePointer);
}
public static DateTime ToDateTime(CefV8Value value)
{
return(ToDateTime(value.NativePointer));
}
public static double ToDouble(CefV8Value value)
{
return ToDouble(value.NativePointer);
}
/// <summary>
/// Create a new CefV8Value object of type undefined.
/// </summary>
public static CefV8Value CreateUndefined()
{
return(CefV8Value.From(
NativeMethods.cef_v8value_create_undefined()
));
}
public static int ToInt32(CefV8Value value)
{
return ToInt32(value.NativePointer);
}
/// <summary>
/// Create a new CefV8Value object of type object with accessors.
/// </summary>
public static CefV8Value CreateObject(CefV8Accessor accessor)
{
return(CefV8Value.From(NativeMethods.cef_v8value_create_object(
accessor != null ? accessor.GetNativePointerAndAddRef() : null
)));
}
/// <summary>
/// Called to get an accessor value.
/// |name| is the name of the property being accessed.
/// |object| is the This() object from V8's AccessorInfo structure.
/// |retval| is the value to return for this property.
/// Return true if handled.
/// </summary>
protected virtual bool Get(string name, CefV8Value obj, out CefV8Value returnValue, out string exception)
{
returnValue = null;
exception = null;
return false;
}
/// <summary>
/// Create a new CefV8Value object of type array.
/// </summary>
public static CefV8Value CreateArray(int length)
{
return(CefV8Value.From(
NativeMethods.cef_v8value_create_array(length)
));
}
/// <summary>
/// Execute the function using the specified V8 context. |object| is the
/// receiver ('this' object) of the function. If |object| is empty the
/// specified context's global object will be used. |arguments| is the list of
/// arguments that will be passed to the function. Returns the function return
/// value on success. Returns NULL if this method is called incorrectly or an
/// exception is thrown.
/// </summary>
public CefV8Value ExecuteFunctionWithContext(CefV8Context context, CefV8Value obj, CefV8Value[] arguments)
{
ThrowIfObjectIsInvalid();
var n_arguments = CreateArgumentsArray(arguments);
fixed (cef_v8value_t** n_arguments_ptr = n_arguments)
{
return CefV8Value.FromOrDefault(
cef_v8value_t.invoke_execute_function_with_context(
this.ptr,
context.GetNativePointerAndAddRef(),
obj.GetNativePointerAndAddRef(),
n_arguments != null ? n_arguments.Length : 0,
n_arguments_ptr
)
);
}
}
/// <summary>
/// Create a new CefV8Value object of type null.
/// </summary>
public static CefV8Value CreateNull()
{
return(CefV8Value.From(
NativeMethods.cef_v8value_create_null()
));
}
/// <summary>
/// Associates a value with the specified identifier and returns true on
/// success. Returns false if this method is called incorrectly or an exception
/// is thrown. For read-only values this method will return true even though
/// assignment failed.
/// </summary>
public bool SetValue(string key, CefV8Value value, CefV8PropertyAttribute attribute = CefV8PropertyAttribute.None)
{
ThrowIfObjectIsInvalid();
fixed (char* key_str = key)
{
var n_key = new cef_string_t(key_str, key != null ? key.Length : 0);
return cef_v8value_t.invoke_set_value_bykey(this.ptr, &n_key, value.GetNativePointerAndAddRef(), (cef_v8_propertyattribute_t)attribute) != 0;
}
}
/// <summary>
/// Create a new CefV8Value object of type bool.
/// </summary>
public static CefV8Value CreateBool(bool value)
{
return(CefV8Value.From(
NativeMethods.cef_v8value_create_bool(value ? 1 : 0)
));
}
private static cef_v8value_t*[] CreateArgumentsArray(CefV8Value[] arguments)
{
if (arguments == null) return null;
var length = arguments.Length;
if (length == 0) return null;
var result = new cef_v8value_t*[arguments.Length];
for (var i = 0; i < length; i++)
{
result[i] = arguments[i].GetNativePointerAndAddRef();
}
return result;
}
/// <summary>
/// Returns true if this object is pointing to the same handle as |that| object.
/// </summary>
public bool IsSame(CefV8Value that)
{
ThrowIfObjectIsInvalid();
return(cef_v8value_t.invoke_is_same(this.ptr, that.GetNativePointerAndAddRef()) != 0);
}
