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juggle-event

v1.0.1

Published

Readme

juggle-event

juggle-event是一个事件库,可用于解除包含结构,树形结构的耦合性。

特点:

1、支持冒泡,前提冒泡对象的parent不为空并且isDisplayObject是true

2、在派发事件的回调函数内将parent设置为null,不能阻止这一次parent接到这次事件

3、在派发事件某层级的回调函数内,移除这层级的监听或添加这层级的监听,是不会影响这次派发事件目标的改变的。

4、但是如果在某层级的回调函数内,移除上层的监听或添加上层的监听,上层本轮会受到影响。

依赖juggle-help

快速开始:

npm install juggle-event

如何使用:


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="../juggle-help/dist/juggle-help.js" type="text/javascript"></script>
    <script src="../juggle-event/dist/juggle-event.js" type="text/javascript"></script>
    <script type="text/javascript">
        //继承EventDispatcher
        function DisplayObj() {
            this.parent = null;
            this.isDisplayObject = true;
            juggle.EventDispatcher.apply(this);
            this.toString = function () {
                return 'im DisplayObj';
            }
        }

        //继承DisplayObj
        function DisplayObjContainer() {
            DisplayObj.apply(this);
            this.addChild = function (child) {
                child.parent = this;
            };
            this.removeChild = function (child) {
                child.parent = null;
            };
            this.toString = function () {
                return 'im DisplayObjContainer';
            }
        }

        //关注事件的函数类
        function Class1() {
            this.operate = function (event, data) {
                this;
                alert(event.mCurrentTarget.toString());
            };
        }

        window.onload = function () {
            //创建DisplayObj对象
            var obj = new DisplayObj();
            //创建DisplayObjContainer对象
            var container = new DisplayObjContainer();
            //将container是obj的容器
            container.addChild(obj);
            //添加监听
            var clazz = new Class1();
            obj.addEventListener("aaa", clazz.operate, clazz);
            container.addEventListener("aaa", clazz.operate, clazz);
            //发布事件
            obj.dispatchEventWith("aaa", true, "bbb");

        }
    </script>
</head>
<body>

</body>
</html>