private void CheckSelf(cef_v8handler_t *self)
{
if (_self != self)
{
throw ExceptionBuilder.InvalidSelfReference();
}
}
protected virtual void Dispose(bool disposing)
{
if (_self != null)
{
cef_v8handler_t.Free(_self);
_self = null;
}
}
protected virtual void Dispose(bool disposing)
{
if (_self != null)
{
cef_v8handler_t.Free(_self);
_self = null;
}
}
internal static CefV8Handler FromNative(cef_v8handler_t *ptr)
{
var value = FromNativeOrNull(ptr);
if (value == null)
{
throw ExceptionBuilder.ObjectNotFound();
}
return(value);
}
public CefV8Handler()
{
cef_v8handler_t *self = this.NativeInstance;
#if NET_LESS_5_0
self->execute = (void *)Marshal.GetFunctionPointerForDelegate(fnExecute);
#else
self->execute = (delegate * unmanaged[Stdcall] < cef_v8handler_t *, cef_string_t *, cef_v8value_t *, UIntPtr, cef_v8value_t **, cef_v8value_t **, cef_string_t *, int >) & ExecuteImpl;
#endif
}
private void add_ref(cef_v8handler_t *self)
{
lock (SyncRoot)
{
var result = ++_refct;
if (result == 1)
{
lock (_roots) { _roots.Add((IntPtr)_self, this); }
}
}
}
internal static CefV8Handler FromNativeOrNull(cef_v8handler_t *ptr)
{
CefV8Handler value = null;
bool found;
lock (_roots)
{
found = _roots.TryGetValue((IntPtr)ptr, out value);
}
return(found ? value : null);
}
private int release(cef_v8handler_t *self)
{
lock (SyncRoot)
{
var result = --_refct;
if (result == 0)
{
lock (_roots) { _roots.Remove((IntPtr)_self); }
}
return(result);
}
}
protected CefV8Handler()
{
_self = cef_v8handler_t.Alloc();
_ds0 = new cef_v8handler_t.add_ref_delegate(add_ref);
_self->_base._add_ref = Marshal.GetFunctionPointerForDelegate(_ds0);
_ds1 = new cef_v8handler_t.release_delegate(release);
_self->_base._release = Marshal.GetFunctionPointerForDelegate(_ds1);
_ds2 = new cef_v8handler_t.has_one_ref_delegate(has_one_ref);
_self->_base._has_one_ref = Marshal.GetFunctionPointerForDelegate(_ds2);
_ds3 = new cef_v8handler_t.execute_delegate(execute);
_self->_execute = Marshal.GetFunctionPointerForDelegate(_ds3);
}
protected CefV8Handler()
{
_self = cef_v8handler_t.Alloc();
_ds0 = new cef_v8handler_t.add_ref_delegate(add_ref);
_self->_base._add_ref = Marshal.GetFunctionPointerForDelegate(_ds0);
_ds1 = new cef_v8handler_t.release_delegate(release);
_self->_base._release = Marshal.GetFunctionPointerForDelegate(_ds1);
_ds2 = new cef_v8handler_t.has_one_ref_delegate(has_one_ref);
_self->_base._has_one_ref = Marshal.GetFunctionPointerForDelegate(_ds2);
_ds3 = new cef_v8handler_t.execute_delegate(execute);
_self->_execute = Marshal.GetFunctionPointerForDelegate(_ds3);
}
private int execute(cef_v8handler_t *self, cef_string_t *name, cef_v8value_t * @object, UIntPtr argumentsCount, cef_v8value_t **arguments, cef_v8value_t **retval, cef_string_t *exception)
{
CheckSelf(self);
var m_name = cef_string_t.ToString(name);
var m_obj = CefV8Value.FromNative(@object);
var argc = (int)argumentsCount;
CefV8Value[] m_arguments;
if (argc == 0)
{
m_arguments = emtpyArgs;
}
else
{
m_arguments = new CefV8Value[argc];
for (var i = 0; i < argc; i++)
{
m_arguments[i] = CefV8Value.FromNative(arguments[i]);
}
}
CefV8Value m_returnValue;
string m_exception;
var handled = 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.ToNative();
}
}
return(handled ? 1 : 0);
}
/// <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);
}
public CefV8Handler()
{
cef_v8handler_t *self = this.NativeInstance;
self->execute = (void *)Marshal.GetFunctionPointerForDelegate(fnExecute);
}
private int get_refct(cef_v8handler_t *self)
{
return(_refct);
}
/// <summary>
/// Create a new CefV8Value object of type function. This method should only be
/// called from within the scope of a CefRenderProcessHandler, CefV8Handler or
/// CefV8Accessor callback, or in combination with calling Enter() and Exit()
/// on a stored CefV8Context reference.
/// </summary>
public static cef_v8value_t *CreateFunction(cef_string_t *name, cef_v8handler_t *handler)
{
throw new NotImplementedException(); // TODO: CefV8Value.CreateFunction
}
private int has_at_least_one_ref(cef_v8handler_t *self)
{
lock (SyncRoot) { return(_refct != 0 ? 1 : 0); }
}
internal static void Free(cef_v8handler_t *ptr)
{
Marshal.FreeHGlobal((IntPtr)ptr);
}
internal unsafe override int execute(cef_v8handler_t *self, cef_string_t *name, cef_v8value_t * @object, int argumentCount, cef_v8value_t **arguments, cef_v8value_t **retval, cef_string_t *exception)
{
var method = this.dispatchTable.GetOrDefault(name);
if (method == null)
{
return(0);
}
// check method visibility
var methodAttributes = method.Attributes;
if ((methodAttributes & MethodDefAttributes.Hidden) != 0)
{
if ((methodAttributes & (MethodDefAttributes.Getter | MethodDefAttributes.Setter)) != 0)
{
if (this.v8Extension)
{
// allow invoke of hidden property accessor's method for v8 extension handler
}
else
{
return(0);
}
}
else
{
return(0);
}
}
var instance = this.instance;
if (instance == null)
{
// TODO: self must be got from obj's userdata
throw new NotImplementedException();
}
// TODO: invoke method
try
{
method.Invoke(instance, argumentCount, arguments, retval);
}
catch (Exception ex)
{
// TODO: how exceptions must be formatted ?
// TODO: message for invoke errors
cef_string_t.Copy(ex.ToString(), exception);
}
// release v8 values
// TODO: this method must be typed (i.e. cef_v8value_t.invoke_release(@object);)
cef_v8value_t.invoke_release((cef_base_t *)@object);
for (var i = 0; i < argumentCount; i++)
{
cef_v8value_t.invoke_release((cef_base_t *)arguments[i]);
}
return(1);
}
public CefV8Handler(cef_v8handler_t *instance)
: base((cef_base_ref_counted_t *)instance)
{
}
public static extern cef_v8value_t *create_function(cef_string_t *name, cef_v8handler_t *handler);
private int has_one_ref(cef_v8handler_t *self)
{
lock (SyncRoot) { return(_refct == 1 ? 1 : 0); }
}
public static extern int register_extension(cef_string_t *extension_name, cef_string_t *javascript_code, cef_v8handler_t *handler);
private int execute(cef_v8handler_t *self, cef_string_t *name, cef_v8value_t * @object, UIntPtr argumentsCount, cef_v8value_t **arguments, cef_v8value_t **retval, cef_string_t *exception)
{
CheckSelf(self);
throw new NotImplementedException(); // TODO: CefV8Handler.Execute
}
