How to get focus back for parent window from an iframe programmatically in Javascript

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小蘑菇 2021-01-22 12:40
Some websites have focus set on an element on window load. If I iframe that website, It seems not able to set focus on parent window, programmatically. This only ha
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没有蜡笔的小新 (楼主)
2021-01-22 13:25
If I've read this correctly you just need to prevent the focus being shifted from the parent window to an element in the iframe.
I would use an 'onfocus' trigger on the iframe element to switch the focus back to your page, like so:

</code></pre>

<p>If (as I suspect you do) you only want to prevent the iframe stealing the initial focus onload but would like the user to be able to shift focus to it later, use a status variable, like so:</p>

<pre><code><script type="text/javascript">
var initialFocus = false;
</script>

<iframe width="800" height="500" src="http://www.bing.com" onfocus="if (initialFocus==false) { document.getElementById('foo').focus(); initialFocus = true; }"/>
</code></pre>

<p>I hope this helps and I'm here if you have any questions.</p>
    </p>
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