protected override bool Execute(string name, CefV8Value obj, CefV8Value[] arguments, out CefV8Value returnValue, out string exception)
{
exception = null;
switch (name)
{
case "CallCSharpMethod":
string methodName = arguments[0].GetStringValue();
string values = arguments[1].GetStringValue();
string res = Global.CallMethod(activeBrowser, methodName, values);
returnValue = CefV8Value.CreateString(res);
return true;
}
returnValue = null;
return false;
}
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>
/// Handle assignment of the accessor value identified by |name|. |object| is
/// the receiver ('this' object) of the accessor. |value| is the new value
/// being assigned to the accessor. If assignment fails set |exception| to the
/// exception that will be thrown. Return true if accessor assignment was
/// handled.
/// </summary>
protected abstract bool Set(string name, CefV8Value obj, CefV8Value value, out string exception);
/// <summary>
/// Handle retrieval the accessor value identified by |name|. |object| is the
/// receiver ('this' object) of the accessor. If retrieval succeeds set
/// |retval| to the return value. If retrieval fails set |exception| to the
/// exception that will be thrown. Return true if accessor retrieval was
/// handled.
/// </summary>
protected abstract bool Get(string name, CefV8Value obj, out CefV8Value returnValue, out string exception);
/// <summary>
/// Handle assignment of the accessor value identified by |name|. |object| is
/// the receiver ('this' object) of the accessor. |value| is the new value
/// being assigned to the accessor. If assignment fails set |exception| to the
/// exception that will be thrown. Return true if accessor assignment was
/// handled.
/// </summary>
protected abstract bool Set(string name, CefV8Value obj, CefV8Value value, out string exception);
/// <summary>
/// Returns the global object for this context. The context must be entered
/// before calling this method.
/// </summary>
public CefV8Value GetGlobal()
{
return(CefV8Value.FromNative(
cef_v8context_t.get_global(_self)
));
}
/// <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)
{
var n_arguments = CreateArguments(arguments);
cef_v8value_t* n_retval;
fixed (cef_v8value_t** n_arguments_ptr = n_arguments)
{
n_retval = cef_v8value_t.execute_function_with_context(
_self,
context.ToNative(),
obj != null ? obj.ToNative() : null,
n_arguments != null ? (UIntPtr)n_arguments.Length : UIntPtr.Zero,
n_arguments_ptr
);
}
return CefV8Value.FromNativeOrNull(n_retval);
}
/// <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)
{
fixed (char* key_str = key)
{
var n_key = new cef_string_t(key_str, key != null ? key.Length : 0);
return cef_v8value_t.set_value_bykey(_self, &n_key, value.ToNative(), attribute) != 0;
}
}
/// <summary>
/// Handle execution of the function identified by |name|. |object| is the
/// receiver ('this' object) of the function. |arguments| is the list of
/// arguments passed to the function. If execution succeeds set |retval| to the
/// function return value. If execution fails set |exception| to the exception
/// that will be thrown. Return true if execution was handled.
/// </summary>
protected abstract bool Execute(string name, CefV8Value obj, CefV8Value[] arguments, out CefV8Value returnValue, out string exception);
/// <summary>
/// Returns the value with the specified identifier on success. Returns NULL
/// if this method is called incorrectly or an exception is thrown.
/// </summary>
public CefV8Value GetValue(int index)
{
return(CefV8Value.FromNativeOrNull(
cef_v8value_t.get_value_byindex(_self, index)
));
}
/// <summary>
/// Create a new CefV8Value object of type bool.
/// </summary>
public static CefV8Value CreateBool(bool value)
{
return(CefV8Value.FromNative(
cef_v8value_t.create_bool(value ? 1 : 0)
));
}
/// <summary>
/// Create a new CefV8Value object of type null.
/// </summary>
public static CefV8Value CreateNull()
{
return(CefV8Value.FromNative(
cef_v8value_t.create_null()
));
}
/// <summary>
/// Create a new CefV8Value object of type undefined.
/// </summary>
public static CefV8Value CreateUndefined()
{
return(CefV8Value.FromNative(
cef_v8value_t.create_undefined()
));
}
/// <summary>
/// Create a new CefV8Value object of type array with the specified |length|.
/// If |length| is negative the returned array will have length 0. This method
/// should only be called from within the scope of a CefV8ContextHandler,
/// CefV8Handler or CefV8Accessor callback, or in combination with calling
/// Enter() and Exit() on a stored CefV8Context reference.
/// </summary>
public static CefV8Value CreateArray(int length)
{
return(CefV8Value.FromNative(
cef_v8value_t.create_array(length)
));
}
/// <summary>
/// Create a new CefV8Value object of type object with optional accessor. This
/// method should only be called from within the scope of a
/// CefV8ContextHandler, CefV8Handler or CefV8Accessor callback, or in
/// combination with calling Enter() and Exit() on a stored CefV8Context
/// reference.
/// </summary>
public static CefV8Value CreateObject(CefV8Accessor accessor)
{
return(CefV8Value.FromNative(
cef_v8value_t.create_object(accessor != null ? accessor.ToNative() : null)
));
}
/// <summary>
/// Handle execution of the function identified by |name|. |object| is the
/// receiver ('this' object) of the function. |arguments| is the list of
/// arguments passed to the function. If execution succeeds set |retval| to the
/// function return value. If execution fails set |exception| to the exception
/// that will be thrown. Return true if execution was handled.
/// </summary>
protected abstract bool Execute(string name, CefV8Value obj, CefV8Value[] arguments, out CefV8Value returnValue, out string exception);
/// <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)
{
return(cef_v8value_t.set_value_byindex(_self, index, value.ToNative()) != 0);
}
/// <summary>
/// Create a new CefV8Value object of type unsigned int.
/// </summary>
public static CefV8Value CreateUInt(uint value)
{
return(CefV8Value.FromNative(
cef_v8value_t.create_uint(value)
));
}
/// <summary>
/// Returns true if this object is pointing to the same handle as |that|
/// object.
/// </summary>
public bool IsSame(CefV8Value that)
{
if (that == null) return false;
return cef_v8value_t.is_same(_self, that.ToNative()) != 0;
}
/// <summary>
/// Create a new CefV8Value object of type double.
/// </summary>
public static CefV8Value CreateDouble(double value)
{
return(CefV8Value.FromNative(
cef_v8value_t.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)
{
return cef_v8value_t.set_value_byindex(_self, index, value.ToNative()) != 0;
}
/// <summary>
/// Handle retrieval the accessor value identified by |name|. |object| is the
/// receiver ('this' object) of the accessor. If retrieval succeeds set
/// |retval| to the return value. If retrieval fails set |exception| to the
/// exception that will be thrown. Return true if accessor retrieval was
/// handled.
/// </summary>
protected abstract bool Get(string name, CefV8Value obj, out CefV8Value returnValue, out string exception);
private static cef_v8value_t*[] CreateArguments(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].ToNative();
}
return result;
}
/// <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 TryEval(string code, out CefV8Value returnValue, out CefV8Exception exception)
{
bool result;
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);
result = cef_v8context_t.eval(_self, &n_code, &n_retval, &n_exception) != 0;
}
returnValue = n_retval != null ? CefV8Value.FromNative(n_retval) : null;
exception = n_exception != null ? CefV8Exception.FromNative(n_exception) : null;
return result;
}
