Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/javascript/472.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/3/html/88.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Javascript 如何防止谷歌搜索自动聚焦于按键?_Javascript_Html_Dom - Fatal编程技术网

Javascript 如何防止谷歌搜索自动聚焦于按键?

Javascript 如何防止谷歌搜索自动聚焦于按键?,javascript,html,dom,Javascript,Html,Dom,我正在为自己做扩展,我想禁用自动对焦,或者至少在对焦之前运行我的函数 我尝试过针对这些事件:keypress、keyup、keydown、在window和document上输入。并使用以下命令停止事件: document.addEventListener('keypress', stopEvent); document.addEventListener('keyup', stopEvent); document.addEventListener('keydown', stopEvent);

我正在为自己做扩展,我想禁用自动对焦,或者至少在对焦之前运行我的函数

我尝试过针对这些事件:
keypress、keyup、keydown、在
window
document
上输入
。并使用以下命令停止事件:

document.addEventListener('keypress', stopEvent);

document.addEventListener('keyup', stopEvent);

document.addEventListener('keydown', stopEvent);

document.addEventListener('input', stopEvent);


document.body.addEventListener('keypress', stopEvent);

document.body.addEventListener('keyup', stopEvent);

document.body.addEventListener('keydown', stopEvent);

document.body.addEventListener('input', stopEvent);


window.addEventListener('keypress', stopEvent);

window.addEventListener('keyup', stopEvent);

window.addEventListener('keydown', stopEvent);

window.addEventListener('input', stopEvent);

function stopEvent(e) {
e.stopImmediatePropagation();
e.stopPropagation();
e.preventDefault()
return false;
}

但不知何故,搜索的输入框仍然被选中,我是否需要以某种方式删除所有事件处理程序?

我找到了,这是第三个参数

useCapture

做了一些有氧运动后,我花了2分钟来解决这个问题

function stopEvent(e) {
    e.stopImmediatePropagation();
    //e.stopPropagation();
    //e.preventDefault()
    //return false;
}

//var eles  = [window, document, document.body];
var eles  = [window];

eles.forEach(function(ele){
    ele.addEventListener('keypress',stopEvent,true);
    ele.addEventListener('keyup',stopEvent,true);
    ele.addEventListener('keydown',stopEvent,true);
    ele.addEventListener('input',stopEvent,true);
});

我算出来了,这是第三个参数

useCapture

做了一些有氧运动后,我花了2分钟来解决这个问题

function stopEvent(e) {
    e.stopImmediatePropagation();
    //e.stopPropagation();
    //e.preventDefault()
    //return false;
}

//var eles  = [window, document, document.body];
var eles  = [window];

eles.forEach(function(ele){
    ele.addEventListener('keypress',stopEvent,true);
    ele.addEventListener('keyup',stopEvent,true);
    ele.addEventListener('keydown',stopEvent,true);
    ele.addEventListener('input',stopEvent,true);
});