private void OnAddListener(CefBrowser browser, PluginMessage pluginMessage, JavaScriptPlugin handler)
{
var info = CreateAndAddCall(browser, pluginMessage, handler, null);
if (!handler.IsValid)
{
RemoveAndCancelCall(info);
return;
}
var handled = handler.AddEventListener(pluginMessage.MemberName, info);
if (!handled)
{
RemoveAndCancelCall(info);
}
}
/// <summary>
/// Add a local V8 callback to a local event as a listener.
/// </summary>
/// <param name="context">
/// The current V8 context that is adding the listener.
/// </param>
/// <param name="targetPlugin">
/// The local plugin that owns the event.
/// </param>
/// <param name="eventName">
/// The name of the event to attach to.
/// </param>
/// <param name="callback">
/// The callback to V8 to invoke when the event is raised.
/// </param>
public void AddEventListener(CefV8Context context, JavaScriptPlugin targetPlugin, string eventName, IV8Callback callback)
{
Logger.Info("AddEventListener Local Plugin {0} Event {1}", targetPlugin.Descriptor.PluginId, eventName);
if (!EnsureOnRendererThread())
{
return;
}
if (!targetPlugin.IsValid)
{
Logger.Warn("AddEventListener Local Plugin {0} is invalid", targetPlugin.Descriptor.PluginId);
if (callback != null)
{
callback.Invoke(this, context, null, CallInfo.ErrorCodeCallCanceled, CallInfo.ErrorCallCanceled);
}
return;
}
var addListenerMessage = CreateMessage(context, targetPlugin.Descriptor, eventName, callback);
addListenerMessage.MessageId = callback.Identifier;
addListenerMessage.MessageType = PluginMessageType.AddListener;
// Add the call info into the pending calls for the browser
var info = AddLocalCallback(addListenerMessage, callback, null);
try
{
targetPlugin.AddEventListener(eventName, info);
}
catch (Exception ex)
{
// Remove listener from calls cache
_pendingCallbacks.Remove(info);
info.Dispose();
Logger.Error("AddEventListener Failed Local Plugin {0} Event {1}: {2}", targetPlugin.Descriptor.PluginId, eventName, ex);
}
}