I've had a browse around similar posts but not found anything that is really related to my scenario.
I have a summary page in which I iframe
several pages that the user has travelled through on route to the summary page. In each of the pages that are being iframed. I'm using .toggle
to expand/collapse the content of the page.
The issue I'm finding is that I'm using a script on the summary page when it is first loaded to make the iframe
the size of the content of the page it is including, but when I click to toggle that content and collapse it, it leaves the iframe
at the same size so that there is a huge chunk of whitespace.
I'm guessing that I need to send something back from the included page to the summary page that says the content size has changed and to therefore re-size the iframe
size but am unsure how to do this.
Can someone please point me in the right direction?
An example of the files is...
Parent.html
<link rel="stylesheet" type="text/css" href="styles.css" />
<script type="text/javascript">
// Resize an iframe so it's as tall as its contents. This could be much shorter but is expanded for clarity.
function size_frame(frame_name, frame_id)
{
// Get the iframe element
var frame_element = document.getElementById(frame_id);
// Get the iframe frame-window object. Note this has different properties to frame_element.
var frame_window = frames[frame_name];
// Set the height to 1px first, because some browsers will give you the maximum height of either the
// frame or its contents, when you try to read the scrollHeight property as we do below.
frame_element.style.height = "1px";
// set the height of the iframe element to the "scrollHeight" of the document element of the frame window.
frame_element.style.height = frame_window.document.documentElement.scrollHeight +"px";
}
</script>
<h1>SUMMARY</h1>
<table border="0" cellspacing="0" cellpadding="0" width="850">
<tr>
<td><iframe src="child1.html" width="850" frameborder="0" scrolling="no" name="child1" id="child1" onload="size_frame('child1','child1');"></iframe></td>
</tr>
</table>
Child.html:
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript">
$().ready(function () {
$('th[event-type-header]').bind('click', function () {
var eventType = $(this).attr('event-type-header');
$('tr[event-type="' + eventType + '"]').toggle('hide-event-type');
});
});
</script>
<h1>Child Page</h1>
<table width="800" border="0" cellspacing="0" cellpadding="0" class="content">
<tr>
<th class="content" event-type-header="childPage">
Header <img src="arrow_down.gif" align="right" width="15" />
</th>
</tr>
<tr class="content2" event-type="childPage">
<td align="center">
<table width="750" cellpadding="0" cellspacing="0" class="content">
<tr>
<th class="content" colspan="2">Sub Heading</th>
</tr>
<tr class="content2">
<td>
Some Text
</td>
</tr>
</table>
</td>
</tr>
</table>
您需要使用offsetHeight,而不是scrollHeight。
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