问题
I'm using jQuery to show / hide a div which happens to contain an iframe. It works great with just standard 'show' and 'hide' methods.
So now I want to get a little fancy and add some effects from jQuery UI (http://jqueryui.com/effect/) but suddenly my iframes are getting reloaded every time I show / hide them.
Here is a fiddle to demonstrate: http://jsfiddle.net/BnZzk/1/ And here is the code since SO is forcing me to add it:
<style>
div {
height: 200px
}
span {
display: block;
padding-bottom: 10px;
margin-bottom: 10px;
border-bottom: 1px solid black;
}
</style>
<div>
<iframe src="http://www.wikipedia.org/"></iframe>
</div>
<input type="button" value="Go"/>
<hr/>
<div id="msgs"></div>
<script>
$(function () {
var container = $('div'),
ifrm = $('iframe'),
msgs = $('#msgs')
delay = 10; //change me to adjust delay in seconds between actions
$('input').on('click', normal);
log('First let the iframe load and then clear your network console -- click the "Go" button to get started.');
function log (msg) {
msgs.append('<span>' + msg + '</span>');
}
function normal () {
ifrm.
hide(400, function () {
log('That was a standard hide with no effect -- is your network console still empty? OK we\'ll pause for ' + delay + ' seconds and then do a standard show.');
ifrm.
delay(delay * 1000).
show(400, function () {
log('That was a show with no effect -- is you network console *still* empty? Great! Let\'s try some effects.');
log('------------------------<br/>' +
'-- Begin Effects --<br/>' +
'------------------------<br/>');
withEffect();
});
}); //hide
} //normal
function withEffect () {
log('We\'ll pause for another ' + delay + ' seconds -- get ready to watch your network console.');
ifrm.
delay(delay * 1000).
hide('fold', {mode:'hide'}, 400, function () {
log('That was a hide with effect -- is your network console flooded? Mine too :-( We\'ll wait ' + delay + ' seconds while you clear your console again.');
ifrm.
delay(delay * 1000).
show('fold', {mode:'show'}, 400, function () {
log('That was a show with effect -- is your network console flooded again? Bummer ...');
});
}); //hide
} //withEffect
});
</<script>
Any idea how I can keep the fancy effects but not refresh the content of my iframes?
回答1:
It's happening because this effect reorganizes the DOM, putting a DIV wrapper around the IFRAME, so when the IFRAME is "reappended" the reload happens! You can see this behavior using the Google Chrome elements inspector.
To solve I suggest you apply the effect in a parent DIV from your IFRAME but not using the effect plugin. Check out the http://api.jquery.com/animate/, manipulating the width and height style properties.
回答2:
As @Jamillo Santos's answer, 'reappend' issues of iFrame.
if you are using dialog widget or its extension of jQueryUI and want to prevent this situation, just redefine _moveToTop() function of your widget implementation as below.
_moveToTop: function() {
return null;
},
来源：https://stackoverflow.com/questions/14864821/jquery-ui-effect-causes-iframe-reload