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Autosize textareas in admin

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This is a simple addition to the admin to automatically resize textareas according to their content. It doesn't work with CKE fields tough.

All it needs is a hook in ready.php + copying autosize.min.js to the "site" folder (or elsewhere if you feel so).

/site/ready.php:

// autosize textareas in admin
$page->addHookAfter('render', function ($event) {

    if ($this->page->template != 'admin') return;

    $autoSizeJsUrl = wire('config')->urls->site . 'autosize.min.js';

    $js = <<< HTML
 <script>
var autosizeTextareas = document.querySelectorAll('textarea');

if (autosizeTextareas.length) {
    $.getScript("$autoSizeJsUrl", function () {
        autosize(autosizeTextareas);
    });
}

$('.langTabs').on('tabsactivate', function(event, ui) {
    var textareas = ui.newPanel.get(0).querySelectorAll('textarea');
    
    if(textareas.length && window.autosize && window.autosize.update) {
        autosize.update(textareas);
    }
});
</script>
HTML;

    $event->return = str_replace('</body>', $js . PHP_EOL . '</body>', $event->return);
});

post-3156-0-28991300-1459947770_thumb.gi

Edit:

fixed updating textareas on activating language tabs (heights weren't updated)

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Thanks netcarver. I have an idea to collect such mini-modules into a one admin helper module but as usual I don't know when will I have to do that :)

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Just tried the AutoGrow CKEditor plugin and works fine (PW 3.013, CKEditor with Lightwire theme).

You can add options like these to the "Custom Config Options" to the CKEditor PW field settings:

autoGrow_onStartup: true
autoGrow_bottomSpace: 20

Or to "/site/modules/InputfieldCKEditor/config.js" if you prefer:

CKEDITOR.editorConfig = function (config) {
    config.autoGrow_onStartup = true;
    config.autoGrow_bottomSpace = 20;
};
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Yes, it was made using PW3. netcarver's module should work fine too, or you can use AdminOnSteroids in which there are some improvements too.

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My best guess is that you try I on a CKEditor field and not on a simple textarea. In this case you need the Auto Grow plugin (see above).

If not, do you have any js error in the browser console?

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Have you copied autosize.min.js to the "site" folder?

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Do i have to throw the autosize.min.js manually into the "site" folder?
Or into the sites/templates? Or the root of the site?

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16 hours ago, tires said:

Do i have to throw the autosize.min.js manually into the "site" folder?
Or into the sites/templates? Or the root of the site?

Try @tpr's essential AdminOnSteroids module which packages everything needed for this to work. 

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Thanks! This seems to work pretty well.

But its a big module for such a little problem ...

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3 hours ago, tires said:

Thanks! This seems to work pretty well.

But its a big module for such a little problem ...

Perhaps, but I would play around with it - you'll find many of its other features invaluable 🙂

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19 hours ago, adrian said:

Perhaps, but I would play around with it - you'll find many of its other features invaluable 🙂

I thought so as well for quite some time, but I also had several problems related to AOS and wasted too much time for debugging just to find out, that AOS was the reason... That's why I don't use it any more and I was surprised - I don't really miss it 😉 It's nice in many ways, but it's not essential imho and I personally don't want to take the risk of getting too used to a module that does not seem to be maintained any more and potentially brings in too many problems.

No AOS bashing here - just trying to support his concern 🙂 

22 hours ago, tires said:

But its a big module for such a little problem ...

I'd much more prefer to get some of AOS features into the core...

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