Read Later Buttons

Adds "read later" buttons to a site. Can send content to Kindle (additional plugin required), Instapaper, Pocket, and Readability.

Author:	Dana Ross (profile at wordpress.org)
WordPress version required:	3.5
WordPress version tested:	3.9.40
Plugin version:	1.2
Added to WordPress repository:	18-04-2013
Last updated:	18-04-2014 Warning! This plugin has not been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.
Rating, %:	100
Rated by:	1
Plugin URI:	http://wordpress.org/extend/plugins/read_late...
Total downloads:	17 114
Active installs:	10+
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Read Later Buttons provides a widget and a shortcode for displaying “read later” buttons for the popular apps Instapaper, Pocket, and Readability. It can also display a Send to Kindle button if that plugin is installed, letting your users send your content to their e-reader to enoy when they have the time.

This plugin is designed to function well and look good without much fuss, but it also provides a shortcode and filters so you can control how the buttons look & work.

Shortcode

Use the [read_later_buttons] shortcode to render buttons for every one of the supported services. You can also include the names of one or more services (i.e. [read_later_buttons instapaper pocket]) to just get those buttons. Valid service names are kindle, instapaper, pocket, and readlater.

The shortcode can also display an estimated reading time if you include the “time” parameter ([read_later_buttons time]). The reading time can be combined with service names ([read_later_buttons time instapaper]) and the time will render above the buttons. When including the time estimate, the plugin won’t display all the buttons by default. You need to include the “all” parameter (i.e. [read_later_buttons time all]) in that case. Also, the shortcode has to be used inside “the loop” in order to calculate a time — in other words in a page, post, or the appropriate parts of your theme template.

Filters

1. read_later_buttons_do_css: return false to prevent loading the default CSS (doesn’t affect the Kindle plugin)
2. read_later_buttons_instapaper: alter the HTML generated for the Instapaper button
3. read_later_buttons_pocket: alter the HTML generated for the Pocket button
4. read_later_buttons_readability: alter the HTML generated for the Readability button
5. read_later_buttons_reading_time: alter the HTML generated for the reading time estimate
6. read_later_buttons_link: alter or replace the link passed to the read later services (doesn’t affect the Kindle plugin)

function disable_read_later_buttons_css($status) {
    return false;
}
add_filter('read_later_buttons_do_css', 'disable_read_later_buttons_css');