cocos2dx中js绑定的回调

最新推荐文章于 2025-08-16 11:18:44 发布

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最新推荐文章于 2025-08-16 11:18:44 发布

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文章标签：游戏 python

原文链接：https://my.oschina.net/u/816723/blog/138949

本文详细介绍了如何将CCPomelo与JavaScript进行集成，并提供了实例代码及使用方法，包括对象初始化、方法调用及回调函数的实现。

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上一篇，写了个CCPomelo导出到js,一直研究怎么写回调，研究了半天也没找到哪里可以自动生成代码了，看了半天源码，只好手动添加代码，在自动生成的中修改

CCPomelo增加几个成员

class CCPomelo : public cocos2d::CCObject
{
public:
CCPomelo(){};
~CCPomelo(){};

int connect(const char* addr, unsigned short port);

int request(const char* route, const char* msg);

virtual void onRequestCallback(int status, const char* msg);

void log(const char* pszLog);

static CCPomelo* getInstance();
JSContext *m_jsCx;
JSObject *m_jsThisObj;
jsval m_jsFun;
jsval *m_jsArgv;
protected:
void* m_client;

protected:
static CCPomelo* m_pInstance;
};

JSBool js_cocos2dx_extension_CCPomelo_request(JSContext *cx, uint32_t argc, jsval *vp)
{
jsval *argv = JS_ARGV(cx, vp);
JSBool ok = JS_TRUE;
JSObject *obj = JS_THIS_OBJECT(cx, vp);
js_proxy_t *proxy; JS_GET_NATIVE_PROXY(proxy, obj);
CCPomelo* cobj = (CCPomelo *)(proxy ? proxy->ptr : NULL);
JSB_PRECONDITION2( cobj, cx, JS_FALSE, "Invalid Native Object");
if (argc == 3) {
  const char* arg0;
  const char* arg1;
  jsval arg2;
  std::string arg0_tmp; ok &= jsval_to_std_string(cx, argv[0], &arg0_tmp); arg0 = arg0_tmp.c_str();
  std::string arg1_tmp; ok &= jsval_to_std_string(cx, argv[1], &arg1_tmp); arg1 = arg1_tmp.c_str();
  //************添加的部分

cobj->m_jsCx = cx;//js上下文
cobj->m_jsThisObj = obj;//js对象指针
cobj->m_jsFun = argv[2];//回调函数

//************结束
  JSB_PRECONDITION2(ok, cx, JS_FALSE, "Error processing arguments");
  int ret = cobj->request(arg0, arg1);
  jsval jsret;
  jsret = int32_to_jsval(cx, ret);
  JS_SET_RVAL(cx, vp, jsret);
  return JS_TRUE;
}

JS_ReportError(cx, "wrong number of arguments: %d, was expecting %d", argc, 3);
return JS_FALSE;
}

在CALLBACK里面调用JS函数

void CCPomelo::onRequestCallback(int status, const char* msg)
{
CCLog(msg);
jsval v1,v2;
JS_CallFunctionValue(m_jsCx ,m_jsThisObj, m_jsFun, 0, &v1, &v2);
}

JS代码：

cc.Pomelo.getInstance().connect("127.0.0.1", 3010);
cc.Pomelo.getInstance().request("connector.helloHandler.hi", "{'msg' : 'hi~'}".replace(/'/g,"\""), this.onCallback);

onCallback: function () {
cc.Pomelo.getInstance().log("Pomelo onCallback");
},

转载于:https://my.oschina.net/u/816723/blog/138949