/// <summary>
/// Invokes the on cef asynchronous.
/// </summary>
/// <param name="action">The action.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException">action</exception>
internal Task InvokeOnCefAsync(Action action)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
var taskCompletionSource = new TaskCompletionSource <object>();
if (IsMultiThreadedMessageLoop)
{
return(InvokeOnMainAsync(action));
}
CefUtility.ExecuteTask(CefThreadId.UI, () =>
{
try
{
action();
taskCompletionSource.SetResult(null);
}
catch (Exception e)
{
taskCompletionSource.SetException(e);
}
});
return(taskCompletionSource.Task);
}
/// <summary>
/// Handles the GotFocus event of the Form control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void Form_GotFocus(object sender, EventArgs e)
{
if (CefBrowser != null)
{
CefUtility.ExecuteTask(CefThreadId.UI, () =>
{
CefBrowser.GetHost().SetFocus(true);
});
}
}
/// <summary>
/// Handles the Move event of the Form control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void Form_Move(object sender, EventArgs e)
{
if (CefBrowser != null)
{
CefUtility.ExecuteTask(CefThreadId.UI, () =>
{
CefBrowser.GetHost().NotifyMoveOrResizeStarted();
});
}
}
/// <summary>
/// Handles the Resize event of the Window control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
private void Window_Resize(object sender, EventArgs e)
{
if (CefBrowser != null)
{
CefUtility.ExecuteTask(CefThreadId.UI, () =>
{
var display = NativeMethods.get_xdisplay();
if (Form.WindowState != FormWindowState.Minimized)
{
// resize the browser
NativeMethods.XResizeWindow(display, CefBrowser.GetHost().GetWindowHandle(), (uint)Form.ClientSize.Width, (uint)Form.ClientSize.Height);
}
});
}
}
/// <summary>
/// Parses the cef v8 value.
/// </summary>
/// <param name="value">The value.</param>
/// <returns></returns>
private JToken ParseCefV8Value(CefV8Value value)
{
if (value == null)
{
return(null);
}
return(CefUtility.RunInContext(Context, () =>
{
if (value.IsInt)
{
return JToken.FromObject(value.GetIntValue());
}
if (value.IsUInt)
{
return JToken.FromObject(value.GetUIntValue());
}
if (value.IsDouble)
{
return JToken.FromObject(value.GetDoubleValue());
}
if (value.IsBool)
{
return JToken.FromObject(value.GetBoolValue());
}
if (value.IsDate)
{
return JToken.FromObject(value.GetDateValue());
}
if (value.IsString)
{
return JToken.FromObject(value.GetStringValue());
}
if (value.IsUndefined)
{
return JValue.CreateUndefined();
}
if (value.IsArray)
{
var array = new JArray();
for (var i = 0; i < value.GetArrayLength(); i++)
{
array.Add(ParseCefV8Value(value.GetValue(i)));
}
return array;
}
if (value.IsObject)
{
var obj = new JObject();
foreach (var propertyName in value.GetKeys())
{
obj.Add(propertyName, ParseCefV8Value(value.GetValue(propertyName)));
}
return obj;
}
return JValue.CreateNull();
}));
}
