Quicktags API Test

qtags.php

<?php

/*
Plugin Name: Quicktags API Test
Description: Testing a few different kinds of Quicktags buttons
Author: Kailey Lampert
Author URI: http://kaileylampert.com/
*/


add_action( 'admin_print_footer_scripts', 'a_few_different_quicktags_buttons', 100 );
function a_few_different_quicktags_buttons() {
	?>
	<script type="text/javascript">

		QTags.addButton( 'k_01', 'test 1', prompt_user );
		
			function prompt_user(e, c, ed) { 
				prmt = prompt('Enter something');
				if ( prmt === null ) return;
	
				rtrn = '[short]' + prmt + '[/short]';
	
				this.tagStart = rtrn;
				QTags.TagButton.prototype.callback.call(this, e, c, ed);
			}

		QTags.addButton( 'k_02', 'test 2', simple_alert );

			function simple_alert(e, c, ed) { 
				alert('hello');
			}

		QTags.addButton( 'k_03', 'test 3', '[selfclosing/]');

		QTags.addButton( 'k_04', 'test 4', '[bookend]', '[/bookend]' );

		// Add a button called 'abbr' with a callback function
		QTags.addButton( 'abbr', 'Abbr', abbr_prompt );
		// and this is the callback function
		function abbr_prompt(e, c, ed) {
			var prmt, t = this;
			if ( ed.canvas.selectionStart !== ed.canvas.selectionEnd ) {
				// if we have a selection in the editor define out tagStart and tagEnd to wrap around the text
				// prompt the user for the abbreviation and return gracefully on a null input
				prmt = prompt('Enter Abbreviation');
				if ( prmt === null ) return;
				t.tagStart = '<abbr title="' + prmt + '">';
				t.tagEnd = '</abbr>';
			} else if ( ed.openTags ) {
				// if we have an open tag, see if it's ours
				var ret = false, i = 0, t = this;
				while ( i < ed.openTags.length ) {
					ret = ed.openTags[i] == t.id ? i : false;
					i ++;
				}
				if ( ret === false ) {
					// if the open tags don't include 'abbr' prompt for input
					prmt = prompt('Enter Abbreviation');
					if ( prmt === null ) return;
					t.tagStart = '<abbr title="' + prmt + '">';
					t.tagEnd = false;
					if ( ! ed.openTags ) {
						ed.openTags = [];
					}
					ed.openTags.push(t.id);
					e.value = '/' + e.value;
				} else {
					// otherwise close the 'abbr' tag
					ed.openTags.splice(ret, 1);
					t.tagStart = '</abbr>';
					e.value = t.display;
				}
			} else {
				// last resort, no selection and no open tags
				// so prompt for input and just open the tag
				prmt = prompt('Enter Abbreviation');
				if ( prmt === null ) return;
				t.tagStart = '<abbr title="' + prmt + '">';
				t.tagEnd = false;
				if ( ! ed.openTags ) {
					ed.openTags = [];
				}
				ed.openTags.push(t.id);
				e.value = '/' + e.value;
			}
			// now we've defined all the tagStart, tagEnd and openTags we process it all to the active window
			QTags.TagButton.prototype.callback.call(t, e, c, ed);
		};
	</script>
	<?php
}

This adds another API test that implements a button for the HTML tag. It tags input for the title parameter and checks for open tags in QuickTags to make sure we close correctly.