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javascript - .on ("DOMNodeInserted", function(e){, e.currentTarget 始终是#document

转载 作者:行者123 更新时间:2023-12-03 02:52:34 43 4
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我正在更新一个已有 2 年历史的应用程序,该应用程序的部分内容如下:

function setupListener(currentXmlHttpRequests){
debugger;
$(document).unbind("DOMNodeInserted");
$(document).bind("DOMNodeInserted", function(e){
debugger;
console.log(e.currentTarget.id);
if(e.target.id=="page-bottom"){
refreshFilterList("Last 6 Months Of Launches");
refreshQuickJump(filtered);
$("#mySelect").on('change', function() {
var val = this.value;
if(val == "")
return;
document.getElementById(val).scrollIntoView();
var element = document.getElementById('mySelect');
element.value = "";

});
$("#datacenter").SumoSelect({placeholder: "All Datacenters"});
$("#year").SumoSelect({placeholder: "All Years"});
$("#platform").SumoSelect({placeholder: "All Platforms"});
$("#tech").SumoSelect({placeholder: "No Technologies"});
$("#tech")[0].sumo.selectItem(1);
$("#tech")[0].sumo.selectItem(2);
$("#tech")[0].sumo.selectItem(3);
$("#version").SumoSelect({placeholder: "All Versions"});
$("#query").keyup(function(e) {
if(e.keyCode == 13) {
setFilters();
changeURL(scriptName);
if(checkFiltersDefault())
loadDefault();
else
filter(filteredServiceNames[env], true);
refresh(currentXmlHttpRequests);
}
});
$("#search").on("click", function(){
setFilters();
changeURL(scriptName);
if(checkFiltersDefault())
loadDefault();
else
filter(filteredServiceNames[env], true);
refresh(currentXmlHttpRequests);
});
$("#clear").on("click", function(){
clearFilters();
changeURL(scriptName);
loadDefault();
refresh(currentXmlHttpRequests);
});
}
});
}

但是输入此内容后,e.currentTarget 始终为 #document,而 e.target.id 始终为空。这会导致监听器永远不会被应用。

page-bottom 是在此方法之前的另一种方法中设置的:

function setupLast(dashboard) {
dashboard.rows.push({
title: 'Chart',
height: 25,
editable: false,
panels: [{
title: ' ',
type: 'text',
span: 0,
mode: 'html',
content: "<!DOCTYPE html><html><body><div id=\"page-bottom\" style=clear:both></div></body></html>",
height: 25,
transparent: true,
id: -1
}]
});
}

写这篇文章的人最初插入这个 div 是为了让我们监视页面何时完成加载。他的旧文档有:

Most dashboards have an invisible panel that is added at the end of the dashboard for the purpose of knowing when it is safe to perform jquery event binding, among other things. This works by using jquery's 'DOMNodeInsert' event to wait for the div inside the panel to be added to the page.

我不太确定问题是什么 - 也许当基础应用程序升级时(2 年的升级)它升级了 jquery 版本,或者如果我只是丢失了一些东西。我可以看到 page-bottom 实际上最终出现在页面中。但是,当页面加载时,这些监听器设置永远不会被执行。

最佳答案

我会放弃那个 div 检测机制并使用 jQuery api 方法:

$(document).ready(function() {
refreshFilterList("Last 6 Months Of Launches");
refreshQuickJump(filtered);
$("#mySelect").on('change', function() {
var val = this.value;
if(val == "")
return;
document.getElementById(val).scrollIntoView();
var element = document.getElementById('mySelect');
element.value = "";

});
$("#datacenter").SumoSelect({placeholder: "All Datacenters"});
$("#year").SumoSelect({placeholder: "All Years"});
$("#platform").SumoSelect({placeholder: "All Platforms"});
$("#tech").SumoSelect({placeholder: "No Technologies"});
$("#tech")[0].sumo.selectItem(1);
$("#tech")[0].sumo.selectItem(2);
$("#tech")[0].sumo.selectItem(3);
$("#version").SumoSelect({placeholder: "All Versions"});
$("#query").keyup(function(e) {
if(e.keyCode == 13) {
setFilters();
changeURL(scriptName);
if(checkFiltersDefault())
loadDefault();
else
filter(filteredServiceNames[env], true);
refresh(currentXmlHttpRequests);
}
});
$("#search").on("click", function(){
setFilters();
changeURL(scriptName);
if(checkFiltersDefault())
loadDefault();
else
filter(filteredServiceNames[env], true);
refresh(currentXmlHttpRequests);
});
$("#clear").on("click", function(){
clearFilters();
changeURL(scriptName);
loadDefault();
refresh(currentXmlHttpRequests);
});
});

关于javascript - .on ("DOMNodeInserted", function(e){, e.currentTarget 始终是#document,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47781768/

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