是否有可能触发由minko中的html事件启动的c ++代码? [英] is it possible to trigger c++ code, initiated by html events in minko?

问题描述

使用 minko (具有"html覆盖"功能)，是否可以将事件从html发送到c ++代码? >

所提供的示例以及框架清楚地说明了如何从c ++向html发送事件(通过增加一个计数器并使它反映在html中)，是否有可能以另一种方式进行通信?

解决方案

是.

HTML DOM事件经过包装，可以用作C ++信号.因此，您可以执行以下操作:

dom->getElementById("my-element-id")->onclick()->connect(
  [](dom::AbstractDOMMouseEvent::Ptr event)
  {
    // do something...
  }
);

实际上是在同一示例中完成的:Minko.addEventListener("message", yourCallbackFunction)中使用AbstractDOM::onmessage()收听这些消息.

请注意，您还可以在C ++代码中调用AbstractDOM::eval()来执行JavaScript代码.这就是我们实际上实现了大多数事情的方式.

Using minko, "html overlay" feature, is it possible to send events to c++ code from html?

The example provided, with the framework clearly demonstrate how to send events from c++ towards html (by incrementing a counter and having it reflect in html), is it possible to have the communication the other way around?

解决方案

Yes.

HTML DOM events are wrapped and made available as C++ signals. So you can do something like:

dom->getElementById("my-element-id")->onclick()->connect(
  [](dom::AbstractDOMMouseEvent::Ptr event)
  {
    // do something...
  }
);

It's actually done in the same example: https://github.com/aerys/minko/blob/master/example/html-overlay/src/Main.cpp#L110

You can also send and receive "messages" both ways using the AbstractDOM::sendMessage() method in C++ or Minko.sendMessage() function in JS. You can listen to those messages using AbstractDOM::onmessage() in C++ and Minko.addEventListener("message", yourCallbackFunction).

Note that you can also call AbstractDOM::eval() in your C++ code to execute JavaScript code. It's how we've implemented most of the things actually.

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