我对html编程感到不舒服。我浏览了许多与JQuery相关的论坛,他们提供了非常好的解决方案,但我宁愿不开始使用该库。 我使用一个完美的功能来显示和隐藏文本与推子。但链接仍然可见。
Here is a link to the jsFiddle.
<script>
function generateFader(elem) {
var t = null, goal, current = 0, inProgress = 0;
if (!elem || elem.nodeType !== 1) throw new TypeError('Expecting input of Element');
function visible(e) {
var s = window.getComputedStyle(e);
return +!(s.display === 'none' || s.opacity === '0');
}
function fader(duration) {
var step, aStep, fn, thisID = ++current, vis = visible(elem);
window.clearTimeout(t);
if (inProgress) goal = 1 - goal; // reverse direction if there is one running
else goal = 1 - vis; // else decide direction
if (goal) { // make sure visibility settings correct if hidden
if (!vis) elem.style.opacity = '0';
elem.style.display = 'block';
}
step = goal - +window.getComputedStyle(elem).opacity;
step = 20 * step / duration; // calculate how much to change by every 20ms
if (step >= 0) { // prevent rounding issues
if (step < 0.0001) step = 0.0001;
} else if (step > -0.0001) step = -0.0001;
aStep = Math.abs(step); // cache
fn = function () {
// console.log(step, goal, thisID, current); // debug here
var o = +window.getComputedStyle(elem).opacity;
if (thisID !== current) return;
if (Math.abs(goal - o) < aStep) { // finished
elem.style.opacity = goal;
if (!goal) elem.style.display = 'none';
inProgress = 0;
return;
}
elem.style.opacity = (o + step).toFixed(5);
t = window.setTimeout(fn, 20);
}
inProgress = 1; // mark started
fn(); // start
}
return fader;
}
window.addEventListener(
'load',
function () {
var fader1 = generateFader(document.getElementById('showOrHideDiv1'));
document.getElementById('action1').addEventListener(
'click',
function () {
fader1(1000);
}
);
}
);
</script>
现在我发现这个功能允许在段落中集成隐藏/显示的文本。
<script language="javascript" type="text/javascript">
function showHide(shID) {
if (document.getElementById(shID)) {
if (document.getElementById(shID+'-show').style.display != 'none') {
document.getElementById(shID+'-show').style.display = 'none';
document.getElementById(shID).style.display = 'block';
}
else {
document.getElementById(shID+'-show').style.display = 'inline';
document.getElementById(shID).style.display = 'none';
}
}
}
</script>
第二个功能的show和hid链接的CSS是:
<style>
.more {
display: none;
border-top: 1px solid #666;
border-bottom: 1px solid #666; }
a.showLink, a.hideLink {
text-decoration: none;
color: #36f;
padding-left: 8px;
background: transparent url(down.gif) no-repeat left; }
a.hideLink {
background: transparent url(up.gif) no-repeat left; }
a.showLink:hover, a.hideLink:hover {
border-bottom: 1px dotted #36f; }
</style>
我再次编码很糟糕。有谁知道如何合并这两个函数?