【发布时间】:2014-06-10 17:29:41
【问题描述】:
我有一个设置,我试图在 div 上分配 mouseover 和 mouseout 事件,但它们似乎没有触发。现在我只是让它尝试console.logthe mouseout 事件并将类添加到body 以及mouseover 事件。
我尝试使用 .addEventListener('mouseover', function(){}) 而不是 .onmouseover 无济于事。我也尝试过mouseenter 和mouseleave,但这些只是 IE 事件。
我需要使用纯 Javascript 而不是任何 3rd 方库,这也需要在 IE8+ 中工作。
HTML
<div class="of_expandable" data-channel="2935725596001" data-muted="1" data-skin="dark"></div>
JS
/*
for each expandable element this function:
- parses the data attributes for handing to the embeds
- styles the expandable div
- binds the hover event to the div
*/
function processExpandable (elm, index){
elm.className += " processed";
elm.id = exp_ns + "_expandable_" + index;
// option parsing
var options = {};
options.skin = elm.getAttribute("data-skin");
if(!options.skin){
options.skin = 'light';
}
// styling
elm.style.width = "300px";
elm.style.height = "250px";
elm.style.position = "relative";
elm.style.backgroundColor = "#000";
// add events to elm
elm.onmouseover = function (){
launchModal(elm, options.skin);
};
elm.onmouseout = function (){
console.log('mouseout');
};
}
/*
opens the modal and populates
*/
function launchModal (elm, skin){
console.log('entered');
document.body.className += " " + exp_ns + "_modal_open modal_skin_" + skin;
}
/*
closes the modal and clears
*/
function closeModal (){
// TODO: clear data from modal
var pattern = "/\b" + exp_ns + "_modal_open\b/";
document.body.className = document.body.className.replace(pattern,'');
var pattern = "/\bmodal_skin_light\b/";
document.body.className = document.body.className.replace(pattern,'');
var pattern = "/\bmodal_skin_dark\b/";
document.body.className = document.body.className.replace(pattern,'');
}
/*
adds the modal element waiting to be triggered by the expandables
- adds background
- adds modal box
*/
function addModal (){
var modalHTML = '<div id="' + exp_ns + '_modal" class="exp_modal"></div><div id="' + exp_ns + '_modal_back" class="exp_modal_back"></div>';
document.body.innerHTML += modalHTML;
}
/*
tests if an element has a class
*/
function hasClass(elm, cls) {
return (' ' + elm.className + ' ').indexOf(' ' + cls + ' ') > -1;
}
var exp_ns = "of"
, expandables = getElementsByClassName(exp_ns + '_expandable')
, hoverTimer
, hoverPause = 1000;
if(expandables.length > 0){
for (var i = 0; i < expandables.length; i++){
if(!hasClass(expandables[i], "processed")){
// make sure we arent adding twice from a double include
processExpandable(expandables[i], i);
}
}
// make sure we arent adding twice from a double include
var modal = document.getElementById(exp_ns + '_overlay');
if(!modal){
addModal();
}
}else{
console.log('warning: no expandable elements found');
}
这是JSFiddle
解决方案更新:
因此,这似乎是因为我使用 document.body.innerHTML += 插入模态元素的方式。我认为必须阅读所有带有新附加内容的innerHTML。作为更好的解决方案,我使用了这个:
function addModal (){
var modalBack = document.createElement("div");
modalBack.setAttribute("class", "exp_modal_back");
document.getElementsByTagName("body")[0].appendChild(modalBack);
var modalCont = document.createElement("div");
modalCont.setAttribute("class", "exp_modal");
document.getElementsByTagName("body")[0].appendChild(modalCont);
}
更新JSFiddle
【问题讨论】:
-
谢谢,我也遇到了类似的棘手问题,因为我正在处理
.innerHTML += ...
标签: javascript dom-events mouseover mouseout