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浏览器 Pointer Events

前言 Pointer Events是一套触控输入处理规格,支持Pointer Events的浏览器包括了IE和Firefox,最近Chrome也宣布即将支持该处理规则. PointerEvent PointEvent对象继承自MouseEvent,使用上也比较类似. mousedown -> pointerdown mouseenter -> pointerenter mouseleave -> pointerleave mousemove -> pointermove mouse…

javascript code snippet -- Forwarding Mouse Events Through Layers

Anyone who has worked with web apps has likely created a masking element at some point, and the great thing about a masking element is that it intercepts user interaction, letting us create a pseudo-modal user interface. The masking element enables u…

ExtJS笔记 Using Events

Using Events The Components and Classes of Ext JS fire a broad range of events at various points in their lifecycle. Events allow your code to react to changes around your application. They are a key concept within Ext JS. 在ExtJS组件和类的生命周期中,会触发许多类型的事件…

jQuery1.9.1源码分析--Events模块

var rformElems = /^(?:input|select|textarea)$/i, rkeyEvent = /^key/, rmouseEvent = /^(?:mouse|contextmenu)|click/, rfocusMorph = /^(?:focusinfocus|focusoutblur)$/, rtypenamespace = /^([^.]*)(?:\.(.+)|)$/; function returnTrue() { return true; } functi…

touch pointer

在早期的浏览器,输入的事件其实相对单纯,只有考虑到鼠标和键盘两种:而当时的鼠标事件,其实就是 click.mousedown.mouseup 等等的事件.但是当手机.平板开始流行时候,再移动装置上的主要操作界面,已经从鼠标变成是触控了- 由于触控和鼠标的操作逻辑,算是有根本上的差异的,再加上大部分的装置又支持多点触控,所以虽然浏览器大多会把触控的事件对应回传统的鼠标事件,但是如果希望能有更细致的操作,传统的鼠标事件是不够用的. 而目前 W3C 针对触控操作的部分,则有两种事件模型可以使用,其中一…

js中对节点属性的操作和对节点的操作

常用的节点属性操作方法 1.setAttribute(name,value):给某个节点添加一个属性 2.getAttribute(name):获取某个节点属性的值. 3.removeAttribute(name):删除某个节点的属性. 例: window.onload = function(){ //查找body节点 var node_body = document.body; //alert(node_body); //查找img节点 …

浏览器的统一指针事件：Pointer Event