Club 15CC

A Rare Inconsistency in UIPickerView’s with Multiple Components

Hari Karam — Thu, 26 Apr 2012 10:40:50 +0000

Recently I came across an elusive bug in our Sound Wand app involving the 2-component UIPickerView used to choose the musical key/scale combination. The setup is a bit complex but to give you an idea, some “scales” are “special” (eg. “Morning Sunrise”) in that they have pre-defined musical keys so when a user selects one [...]

Popular Press Feeds Public Paranoia Over Internet Cookie Ignorance

Hari Karam — Mon, 23 Apr 2012 14:19:51 +0000

Upon reading the news of the recently passed UK bill which will require websites to get visitor consent to use cookies, I broke out into a cold sweat. As a web professional who has created many websites and who manages about a dozen for our indie inspirational media studio, the economic implications of the bureaucratic [...]

iOS/Cocoa Event Timing with MPStopwatch

Hari Karam — Sat, 24 Mar 2012 12:19:18 +0000

Marshmallow Stopwatch on Github This is the latest addition to the Marshmallows library. It’s a simple class I designed for getting a deeper analysis of user interaction timings in an app. The results are then reported to the app’s analytics. It supports “marks” (like the “lap” button on stopwatches) as well as pausing. An example…

Understanding the iOS Layer Drawing & Display Hierarchy – A Detailed Look Behind the Scenes

Hari Karam — Sun, 11 Mar 2012 15:18:54 +0000

The first time I was confronted with the need to do some custom drawing in my iOS app, I spent longer understanding and deciding how to begin than I did actually doing the drawing code itself. Through much trial and error, and many pages of Apple docs and Stack Overflow posts, I journeyed through a [...]

The best iOS singleton approach yet – thread safe, no locks!

Hari Karam — Sun, 29 Jan 2012 13:34:34 +0000

http://lukeredpath.co.uk/blog/a-note-on-objective-c-singletons.html

Handy category for sampling pixel data from UIImage…

Hari Karam — Wed, 04 Jan 2012 10:26:22 +0000

https://github.com/Club15CC/Marshmallows/tree/master/Source/UIKit A UIImage category for Getting pixel byte data into an NSData object Sampling pixel colour data at a point Sampling an even selection of pixels from a range (for using gradients swatches as colour profiles). Many thanks to the help in this SO questions.

Pure CSS3 Lighting Technique Example

Hari Karam — Wed, 21 Dec 2011 10:15:04 +0000

http://attasi.com/labs/ipad/

A big weakness in Objective-C’s weak typing

Hari Karam — Sun, 18 Dec 2011 14:44:04 +0000

http://cocoawithlove.com/2011/06/big-weakness-of-objective-c-weak-typing.html Keeping this one in the back of your mind might save you some serious headache…

Mysterious Appearance of Duplicate Symbol Error for Objective-C Class

Hari Karam — Mon, 12 Dec 2011 10:35:03 +0000

Check that you aren’t importing the “.m” file: #import "DuplicateClass.m" Thanks to the second answer on this SO post!

11 Fairly Random Tips and Stumbling Blocks to Help with Your Next iPhone Friendly, HTML5/CSS3 Website

Hari Karam — Mon, 05 Dec 2011 15:36:02 +0000

1. In HTML5, there is no predefined hierarchy for <header>, <section> and <article> tags. Each can be nested within the other. It’s not one section per page or one article per page. Post stubs can be wrapped in <article> tags. Comments can be a <section> with each comment being an <article> with the author/date/time in [...]

CanvasDemos.com: 3D, Particles, Physics and Other Advanced Graphics on the Web

Hari Karam — Mon, 05 Dec 2011 09:58:38 +0000

http://www.canvasdemos.com/

A Crash Course in the HTML5/CSS3/JS Techniques of the Modern Front-End Maestro

Hari Karam — Sat, 03 Dec 2011 20:04:40 +0000

For the rebuild of the photographer Nick Fleming’s website, I was pleased to discover this treasure chest of incredible tools which have come about in recent years. The site employs many modern front-end web development techniques such as responsive design via media queries, font embedding, the HTML5 History API, HTML5 elements, and many CSS3 techniques [...]

The Tale of a Responsive Design, HTML5, CSS3, iPad3 Future Proof Photography Website

Hari Karam — Sat, 03 Dec 2011 19:14:19 +0000

For the recent re-design of the photographer Nick Fleming’s website, I decided to make a bold decision to forgo worry about compatibility with the Ghosts of IE Past and focus on leveraging many of the modern tools of HTML5, CSS3 and other areas which many of us have been patiently window shopping but in-the-end, avoiding for [...]

Get All Attachments to a Post [WordPress]

Hari Karam — Fri, 25 Nov 2011 19:02:37 +0000

Sometimes you need to get a list of all the attachments to a post, some of which may not be accessible any other way (eg an image attached via media_side_load() which you wish to make the thumbnail). Here’s a useful snippet which grabs all the image attachments…

How To: Upload Media via URL Programmatically in WordPress

Hari Karam — Fri, 25 Nov 2011 18:39:00 +0000

How To: Upload Media via URL Programmatically in WordPress Discover the useful media_sideload_image() and download_url() functions. Much abliged Konstantin!

Set Post Parent for Media Set via a Custom Fields [WordPress]

Hari Karam — Fri, 25 Nov 2011 13:20:00 +0000

While creating a podcast website I discovered a fantastic plugin by Steve Taylor called Developer’s Custom Fields. I used it to add the podcast as custom fields which allowed me to easily handle the custom placement of the item in the layout while still giving the end-user the convenience of the Media Library to select [...]

Bulk Remove Categories from Posts [WordPress]

Hari Karam — Tue, 22 Nov 2011 12:28:21 +0000

It’s a slight drawback to the bulk post editor in WP at the moment that you may only add categoires to the selected posts but not remove them. I came across this post on the forum to which I had to make a few tweaks to get things working in WP3.2. Below is the result… [...]

iOS5 & ARC – A Clear, Comprehensive Tutorial… [iOS]

Hari Karam — Fri, 18 Nov 2011 04:46:46 +0000

iOS5 & ARC – A Clear, Comprehensive Tutorial… [iOS]

Singleton Design Patterns Reference [Objective-C]

Hari Karam — Fri, 18 Nov 2011 04:10:00 +0000

Singleton Design Patterns Reference [Objective-C] A good discussion on StackOverflow which covers multi-threading and high-efficiency options…

Learn by Example with these Python Generator Expressions [Python]

Hari Karam — Fri, 11 Nov 2011 13:09:15 +0000

Learn by Example with these Python Generator Expressions [Python]

Need to know the type of an object? Let me make a brief argument: No, you don’t. Just use the object as if it was whatever you expect it to be, and handle any errors that result.

Hari Karam — Fri, 11 Nov 2011 12:20:00 +0000

Need to know the type of an object? Let me make a brief argument: No, you don’t. Just use the object as if it was whatever you expect it to be, and handle any errors that result. Thanks for the reminder: http://www.siafoo.net/article/56 Debating whether and how to check that variables type to ensure it’s used [...]

Set Fade on Multiple Items Simultaneously [Reaper]

Hari Karam — Mon, 07 Nov 2011 06:40:07 +0000

Hold CTRL+ALT to fade multiple items on the same [or seperate] tracks Thanks Ollie: http://forum.cockos.com/archive/index.php/t-54989.html

Absolute Positioned A Tag Block Not Clickable in IE [Problems & Solutions, CSS]

Hari Karam — Sat, 05 Nov 2011 13:26:36 +0000

Credit to @Justin http://stackoverflow.com/questions/1663919/how-to-make-an-empty-anchor-tag-clickable-in-ie7

WordPress Sub-queries – The Many Options and Best Practices [WordPress]

Hari Karam — Sat, 05 Nov 2011 13:12:00 +0000

Recently, while doing the new build for www.nickfleming.com, I had a situation where I wanted to show excerpts for my related post stubs on the Tag templates but not on the Single templates. Doing an is_tag() strangely returned true for all contexts. Upon investigating I realised I was overriding the global $wp_query and with it, [...]

HTML5 Saves You More Javascript Hackery with Prefetching/Prerendering

Hari Karam — Wed, 02 Nov 2011 05:27:00 +0000

HTML5 Saves You More Javascript Hackery with Prefetching/Prerendering

Removing Unnecessary Admin Menu Items [WordPress]

Hari Karam — Wed, 02 Nov 2011 05:24:00 +0000

Removing Unnecessary Admin Menu Items [WordPress]

WordPress – Give “subscribers” access to private posts & pages

Hari Karam — Sun, 30 Oct 2011 08:09:00 +0000

Anywhere should do for this. I’ve got mine in a hook into the ‘after_setup_theme’ action.

WordPress – Determine whether 404 was actually a private page view…

Hari Karam — Sun, 30 Oct 2011 07:39:00 +0000

WordPress WP_Query’s get_posts() method takes a somewhat draconian approach to private posts on single and page views and strips them from the results even if you specify you want them with the query parameters. With it, goes the ability to distinguish between private pages and those which are true 404s. The snippet below overcomes this [...]

Cross Browser User-Select Reset [CSS3]

Hari Karam — Tue, 25 Oct 2011 10:11:00 +0000

This snippet disables content selection on all elements and then re-enables it for common text elements in ASIDE or ARTICLE (and a few other) contexts. If you want images to be selected, change : text; to : all; [EDIT] Mozilla blocks all children from overriding unless you use -moz-none for the value. Even so I [...]

WordPress: Convert Post Date Format to More Human Friendly Version

Hari Karam — Tue, 25 Oct 2011 13:47:00 +0000

Converts MySQL Datetime formats… mysql2date( get_option('date_format'), $your_post->post_date ); (source: /wp-includes/functions.php)

WordPress: Better Verions for Built-in PHP Functions

Hari Karam — Tue, 25 Oct 2011 11:07:00 +0000

One issue with starting in a new framework is learning and remembering all the functions implemented which are improved versions of, and therefore preferred over, their PHP built-in siblings. They are most commonly the ones associated with escaping and UTF-8, i18n, etc. This is another ongoing list for your and my general reference. In preference [...]

An Improved Version of the jQuery Plugin Template

Hari Karam — Thu, 20 Oct 2011 07:20:00 +0000

I can’t seem to find it now, but there was a very helpful article on public/private methods for jQuery plugins – an improvement/extension over the one jQuery recommends at the bottom of http://docs.jquery.com/Plugins/Authoring. After writing a couple of plugins, I’ve re-vamped, tweaked and pimped it a bit to improve and simplify things. One key feature [...]

WordPress: Get Custom Posts by Tag on the Tag Page

Hari Karam — Tue, 18 Oct 2011 14:57:00 +0000

You want to grab the posts for a custom post type for the current tag whose page is being viewed… Then continue with The Loop as normal…

WordPress: Get post by title

Hari Karam — Tue, 18 Oct 2011 14:50:52 +0000

Not entirely obvious from what’s our there… I chose to use get_object_vars rather than passing the ARRAY_A second param as the later misses out on some escaping I think from what I’ve seen of it’s usage in the code. Does anyone know more about this point? Also it should be mentioned that this is probably [...]

WordPress: Check user capabilities on a post

Hari Karam — Tue, 18 Oct 2011 11:41:27 +0000

…

WordPress: Add IPTC keywords and category metadata to uploaded images

Hari Karam — Mon, 17 Oct 2011 15:40:00 +0000

Add IPTC keywords and category to image…

WordPress: Adding a form parameter to media uploads

Hari Karam — Mon, 17 Oct 2011 13:30:00 +0000

Say you want to get a form parameter to pass to the media uploader so you can test for it in the $_POST on your wp_handle_upload filter… Getting the form field in is no problem but you also need to hack into the SWFUploader instance’s post parameters. This MUST be done via the setPostParams() method. [...]

WordPress: Secret, Undocumented, Hard to Find & Very Useful Hooks

Hari Karam — Mon, 17 Oct 2011 11:18:00 +0000

an ongoing list…feel free to contribute! Media Library pre-upload-ui | post-upload-ui | pre-html-upload-ui | post-html-upload-ui | pre-flash-upload-ui | post-flash-upload-ui (media.php: ~1488) Parameters: None Inserts html into the media library uploader form. The html and flash work for their versions only and the general two work for both. Media Uploading wp_handle_upload Occurs when file is first [...]

WordPress: Run a query loop without interfering with the global $post

Hari Karam — Sun, 16 Oct 2011 10:18:36 +0000

This example runs a query with some (prearranged) arguments to get related post thumbnails. More importantly, it’s an example of how to run a WP_Query in WordPress without affecting the global data. Notice the get_the_ID() call which checks the current scope’s post id… Before I had the code below which was overwriting the global $post [...]

WordPress: Add custom image thumbnail sizes to the media library’s insert size choices

Hari Karam — Sat, 15 Oct 2011 17:09:06 +0000

WordPress: Enqueuing Javascript File Dependencies Correctly

Hari Karam — Thu, 22 Sep 2011 10:07:58 +0000

Mod of the MailChimp WP widget to include Placeholders jQuery Plugin. Notice the first function is wp_register_script. This doesn’t load it unless something later depends on it. Also if another plugin has it’s own version and uses the same handle name then this will prevent duplicate loads even if the script sources are different.

Club 15CC

A Rare Inconsistency in UIPickerView’s with Multiple Components

Popular Press Feeds Public Paranoia Over Internet Cookie Ignorance

iOS/Cocoa Event Timing with MPStopwatch

Understanding the iOS Layer Drawing & Display Hierarchy – A Detailed Look Behind the Scenes

The best iOS singleton approach yet – thread safe, no locks!

Handy category for sampling pixel data from UIImage…

Pure CSS3 Lighting Technique Example

A big weakness in Objective-C’s weak typing

Mysterious Appearance of Duplicate Symbol Error for Objective-C Class

11 Fairly Random Tips and Stumbling Blocks to Help with Your Next iPhone Friendly, HTML5/CSS3 Website

CanvasDemos.com: 3D, Particles, Physics and Other Advanced Graphics on the Web

A Crash Course in the HTML5/CSS3/JS Techniques of the Modern Front-End Maestro

The Tale of a Responsive Design, HTML5, CSS3, iPad3 Future Proof Photography Website

Get All Attachments to a Post [WordPress]

How To: Upload Media via URL Programmatically in WordPress

Set Post Parent for Media Set via a Custom Fields [WordPress]

Bulk Remove Categories from Posts [WordPress]

iOS5 & ARC – A Clear, Comprehensive Tutorial… [iOS]

Singleton Design Patterns Reference [Objective-C]

Learn by Example with these Python Generator Expressions [Python]

Need to know the type of an object? Let me make a brief argument: No, you don’t. Just use the object as if it was whatever you expect it to be, and handle any errors that result.

Set Fade on Multiple Items Simultaneously [Reaper]

Absolute Positioned A Tag Block Not Clickable in IE [Problems & Solutions, CSS]

WordPress Sub-queries – The Many Options and Best Practices [WordPress]

HTML5 Saves You More Javascript Hackery with Prefetching/Prerendering

Removing Unnecessary Admin Menu Items [WordPress]

WordPress – Give “subscribers” access to private posts & pages

WordPress – Determine whether 404 was *actually* a private page view…

Cross Browser User-Select Reset [CSS3]

WordPress: Convert Post Date Format to More Human Friendly Version

WordPress: Better Verions for Built-in PHP Functions

An Improved Version of the jQuery Plugin Template

WordPress: Get Custom Posts by Tag on the Tag Page

WordPress: Get post by title

WordPress: Check user capabilities on a post

WordPress: Add IPTC keywords and category metadata to uploaded images

WordPress: Adding a form parameter to media uploads

WordPress: Secret, Undocumented, Hard to Find & Very Useful Hooks

WordPress: Run a query loop without interfering with the global $post

WordPress: Add custom image thumbnail sizes to the media library’s insert size choices

WordPress: Enqueuing Javascript File Dependencies Correctly

WordPress – Determine whether 404 was actually a private page view…