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pointerdown 事件的 全局事件处理程序
语法
var downHandler = targetElement.onpointerdown;
返回值
downHandler- pointerdown 事件触发对象的事件处理程序.
示例
当前示例展示两种方式使用 onpointerdown 去设置元素的pointerdown事件处理程序.
<html>
<script>
function downHandler(ev) {
// Process the pointerdown event
}
function init() {
var el=document.getElementById("target1");
el.onpointerdown = downHandler;
}
</script>
<body onload="init();">
<div id="target1"> Touch me ... </div>
<div id="target2" onpointerdown="downHandler(event)"> Touch me ... </div>
</body>
</html>
规范
| Specification | Status | Comment |
|---|---|---|
| Pointer Events – Level 2 onpointerdown |
Editor's Draft | Non-stable version |
| Pointer Events onpointerdown |
Recommendation | Initial definition |
浏览器支持
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | 55.0 | (Yes) | (Yes) | 10 | 42 | 未实现 |
| Feature | Android | Android Webview | Edge | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|---|
| Basic support | 未实现 | 55.0 | (Yes) | 未实现 | 未实现 | 10 | 42 | 未实现 | 55.0 |