Using CSS to Create Resizable Columns in WordPress with Thesis Theme…Part Deux!

CSS variable declaration and use

About three years ago, I wrote a post about dynamically resizing the content column in WordPress.org when using the Thesis theme.

The method described in that post worked fine until Thesis 2.4 was released last August. At that time, I noticed that my columns were no longer the full width of the window, and did not change size as I expanded or shrank the window. I sent an email to Thesis support and was told that a Box called Fix CSS would likely fix my problem. I installed it, but to no avail. Upgrading to Thesis 2.6 last month also had no effect.

Last week I decided to send another email and got a little more information. The creator of Thesis responded. Part of the message is below.

“Thesis 2.6 has ‘clarified’ the way you can use variables. Here’s how it works…

DO NOT:
Modify the Skin CSS, Editor CSS, or CSS Variables that come with your Thesis Skin. Whenever a Skin is updated, these three items will be overwritten, and you will lose any changes you’ve made to them.

DO:
Isolate ALL your CSS changes to the Custom CSS interface. Your modifications will be safe here during future Skin updates.
Create inline variables inside your Custom CSS interface, as seen in the image below:

picture of Custom CSS screen in Thesis

You can REFERENCE existing CSS Variables in your Custom CSS code, and you can also create and reference your own variables (like those shown in the image above) here as well.”

Now I had to implement the same steps as before in the previous post, but using this new method.

While the changes causing the builtin variables to revert to their original values may have been implemented in 2.6, my code had quit working at 2.4. So there’s a mystery! First, I removed the custom code and deleted the new variables from the Skin CSS so that it would be as it would directly downloaded the Thesis website.

Then, I basically set up new variables in the Custom CSS using the syntax shown in the screenshot above. I hit a snag here, however. For whatever reason, the CSS engine no longer supported the CSS calc() function! Also, I discovered that some of the CSS class names I originally used seemed not to affect the style of the column any longer.

The code below, which I appended to the bottom of my Custom CSS, does several things. First, it declares variables for the Custom CSS page in Thesis. Secondly, it implements those custom variables on the appropriate CSS classes and overrides the Skin CSS in all places where the variables $w_total and $w_content were used. Lastly, it declares a CSS variable to store the value in the builtin $w_sidebar Thesis variable. This will be useful in the next step, in which I will use a workaround for the lack of a working CSS calc() function.

$w_total_new = 80%;
$w_total_min = 897px;
$w_content_min = 585px;

.container, .columns > .content{
	max-width: $w_total_new;
	width: auto;	
}

.landing .container{	
	min-width: $w_content_min;
}

.full_width{
	min-width: $w_total_new;
}

.columns > .sidebar {	
	max-width: $w_sidebar;
}

:root{
	--sidebar: $w_sidebar;	
}

Since the modified $w_content variable in the original post used calc(), we’ll have to use the magic of JavaScript and jQuery to change the CSS after the page is loaded.

First, I grab the CSS variable called “–sidebar” by combining the window.getComputedStyle() method and the CSSStyleDeclaration.getPropertyValue() method interface.

I then trim the returned value to eliminate whitespace, and concatenate the string “-=” with the sidebar value which, incidentally, is currently 312px by default.

Then, I set the CSS to 100% for the classes listed. I then subtract (hence the “-=”) the sidebar width.

This:

$w_content = calc(100% - $w_sidebar);

Becomes this:

var sidebar = '-=' + window.getComputedStyle(document.body).getPropertyValue('--sidebar').trim();
if (sidebar==='-=') {
	sidebar = '-=' + window.getComputedStyle($('.sidebar')[0]).getPropertyValue('max-width').trim();
}
$('.landing .container, .columns > .content').css('width', '80%').css('width', sidebar);	 

Lastly, I wrapped it in a jQuery function that runs only after the window (including the CSS files) is fully rendered. The completed code below may be put in a Custom HTML widget in WordPress.

<script>
(function($) {
$(window).load(function() {	
	var sidebar = '-=' + window.getComputedStyle(document.body).getPropertyValue('--sidebar').trim();
	if (sidebar==='-=') {
		sidebar = '-=' + window.getComputedStyle($('.sidebar')[0]).getPropertyValue('max-width').trim();
	}
	$('.landing .container, .columns > .content').css('width', '100%').css('width', sidebar);	 
	$('img').each(function(){ 
		var image = $(this); 
		if(image.context.naturalWidth === 0 || image.readyState === 'uninitialized'){  
		$(image).unbind('error').hide();
      }	
	});	
});
})(jQuery);
</script>

Voila! The content column is once again resizable!

Nota bene: This has only been tested on the Social Triggers skin for Thesis. Other skins may use different CSS classes, so YMMV.

End of Another Year! … and a Minor Update to the Code School Profile Scraper

Code School Profile with LI Bullet

It’s hard to believe 2016 is already drawing to a close. It seems like just yesterday that I was writing about using PHP to search through my source code!

Though I wouldn’t call this an intractable problem, I did notice something annoying when looking at my Code School profile on the sidebar of this site.

Code School Profile with LI Bullet

Between the badges in the “Master Status” section, white dots had appeared! Upon inspecting these, I saw that these were the bullets on the list items that held the badges.

One article on Stack Overflow suggested that the CSS style for the tag for the unordered list that holds the list items should be include “list-style-type: none;”, but that seemed to have no effect.

After playing with the CSS a bit, I discovered that setting that property on the li tag instead fixed the problem.

Here is the corrected CSS code which updates the code from a past post:

<style>
#codeschool {
   border: 1px solid blue;
   text-align: center;
   vertical-align: middle;
}

#codeschool li {
   list-style-type: none;
}

.badge-img {
   display:block !important;
   margin-left: auto;
   margin-right: auto;
}

.pr-avatar {
   display:block;
   margin-left: auto;
   margin-right: auto;
   margin-bottom: 10px;
}
</style>

By implementing this minor change, the bullets disappeared, and the profile looks as it did originally.

Have a Merry Christmas and a Happy New Year!

Using PHP to Scrape the Report Card from a Code School Profile – Part 2

Earlier this week, I described how to use PHP to scrape the report card from a Code School profile. Now, it must be displayed. I chose to display mine in the sidebar of my blog. To do this, jQuery and CSS will be your friends. It’s pretty simple, and this isn’t the only way to do it. However, in this implementation, it is important that the name of the querystring parameter used in the PHP script (in this case, “nick”) matches the one in the jQuery function call below. Likewise, the id attribute of the div element must also match the one in the jQuery statement.

(Update: the CSS code below should be updated in accordance with this change to prevent bullets from appearing between the badges in the “Master Status” section.)

<style>
#codeschool {
   text-align: center;
   vertical-align: middle;
}

.badge-img {
   display:block !important;
   margin-left: auto;
   margin-right: auto;
}

.pr-avatar {
   display:block;
   margin-left: auto;
   margin-right: auto;
   margin-bottom: 10px;
}
</style>
<div id="codeschool">
</div>
<br />
<script>
(function($) {
$("#codeschool").load("/codeschool/codeschool.php?nick=DeepInTheCode");
})(jQuery);
</script>

Well, that’s it. If you debug the client-side code on both your page and the Code School profile page, you’ll see that there are path elements in the Code School script that cause the partial opacity on uncompleted paths. This is presumably done with other JavaScripts and CSS on the Code School site. I haven’t tried bringing that functionality here as yet. Perhaps for another time…

Code School will be Having a Black Friday Special!

I have found Code School to be a great resource both for those just learning to code as well as those who are experienced coders, but want to learn a new programming language. It has multiple paths: Ruby (including Ruby on Rails), JavaScript (includes jQuery and CoffeeScript), HTML/CSS, iOS, Git, and an Electives path for miscellaneous technologies such as R and Chrome DevTools.

The normal price for a subscription at Code School is $29 per month, or $290 per year. However, it appears that they intend to run a Black Friday special for yearly subscriptions. The price will be revealed this Friday. If you don’t already have a subscription, or your subscription is about to run out, this could be a good time to sign up!

Unfortunately, Code School is still lacking Python, though you can learn it at Codecademy (which is free).