Question

我创建了一个模式窗口，当您单击锚点时，该窗口会淡入淡出。用于此的HTML非常简单：

<div id="main_wrapper" class="displayed">
    //Some content here
</div>
<div id="dynamic">
    //Dynamically generated (AJAX) content here
    //the below anchor skips the CSS transition somehow!
    <a href='#' onclick='toggleDynamic(); return false;'>Cancel</a>
</div>

//This anchor works exactly as intended
<a href='#' onclick='toggleDynamic(); return false;'>Dynamic</a>

CSS稍微复杂一些，为简洁起见，我遗漏了一些属性：

.displayed{
    opacity:        1 !important;
    pointer-events: auto !important;
    transition:     opacity 1s ease-in .5s !important;
}

#main_wrapper{
    max-width:      800px;
    opacity:        0;
    pointer-events: none;
    transition:     opacity 1s linear;
}

#dynamic{
    position:       fixed;
    display:        block;
    opacity:        0;
    pointer-events: none;
    max-width:      800px;
    transition:     opacity 1s linear;
}

然后我只使用切换javascript函数：

function $I(id) {
    return document.getElementById(id);
}

var dynamic = $I('dynamic');
var main = $I('main_wrapper');

function toggleDynamic() {
    if(dynamic.className === "") {
        dynamic.className = "displayed";
        main.className = "";
    } else {
        dynamic.className = "";
        main.className = "displayed";
    }
}

以上所有代码完全按预期工作，除了一件事 - 当单击#dynamic内的锚点时，div消失而没有转换！我无法理解这一点，因为你可以整天点击外面的锚点并获得一个不错的渐变过渡。

据我所知（IE，FF，Chrome，Opera），所有浏览器都会出现这种情况。

编辑：我已经更改了javascript，因为之前没有正确处理className。

Answer 1

我无法理解为什么你的JS会按原样工作，因为你没有修改你的#dynamic类，只修改了一个变量（dynamic）。对我来说，纠正后的片段就像魅力一样。

function $I(id) {
    return document.getElementById(id);
}

var dynamic = $I('dynamic').className;
var main = $I('main_wrapper').className;

function toggleDynamic() {
    if($I('dynamic').className === "") {
        $I('dynamic').className = "displayed";
        main = "";
    } else {
        $I('dynamic').className = "";
        main = "displayed";
    }
}

.displayed{
  opacity:        1 !important;
  pointer-events: auto !important;
  transition:     opacity 1s ease-in .5s !important;
}

#main_wrapper{
  max-width:      800px;
  opacity:        0;
  pointer-events: none;
  transition:     opacity 1s linear;
}

#dynamic{
  position:       fixed;
  display:        block;
  opacity:        0;
  pointer-events: none;
  max-width:      800px;
  transition:     opacity 1s linear;
}

<div id="main_wrapper" class="displayed">
    //Some content here
</div>
<div id="dynamic">
    //Dynamically generated (AJAX) content here
    //the below anchor skips the CSS transition somehow!
    <a href='#' onclick='toggleDynamic(); return false;'>Cancel</a>
</div>
//This anchor works exactly as intended
<a href='#' onclick='toggleDynamic(); return false;'>Dynamic</a>

通过从子元素调用的javascript更改类时，CSS转换不起作用

1 个答案: