/* Placeholder plugin, taken from
 * https://github.com/snikch/jquery-placeholder-plugin.
 *
 * This is the version from commit 449e8f84813150b16c03: Updated script
 * tag to point to newly named placeholder js file, February 02, 2011
 *
 * License and copyright shown next apply to all code up to the "End of
 * placeholder plugin" marker.

Copyright (c) 2010 Andrew Jones, http://andrew-jones.com
Parts Copyright (c) 2010 Mal Curtis, http://mal.co.nz

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

*/

(function($) {
	$.extend({
		placeholder : {
			settings : {
				focusClass: 'placeholderFocus',
				activeClass: 'placeholder',
				overrideSupport: false,
				preventRefreshIssues: true
			},
			debug : false,
			log : function(msg){
				if(!$.placeholder.debug) return;
				msg = "[Placeholder] " + msg;
				$.placeholder.hasFirebug ?
				console.log(msg) :
				$.placeholder.hasConsoleLog ?
					window.console.log(msg) :
					alert(msg);
			},
			hasFirebug : "console" in window && "firebug" in window.console,
			hasConsoleLog: "console" in window && "log" in window.console
		}

	});

    // check browser support for placeholder
    $.support.placeholder = 'placeholder' in document.createElement('input');

	// Replace the val function to never return placeholders
	$.fn.plVal = $.fn.val;
	$.fn.val = function(value) {
		$.placeholder.log('in val');
		if(this[0]) {
			$.placeholder.log('have found an element');
			var el = $(this[0]);
			if(value != undefined)
			{
				$.placeholder.log('in setter');
				var currentValue = el.plVal();
				var returnValue = $(this).plVal(value);
				if(el.hasClass($.placeholder.settings.activeClass) && currentValue == el.attr('placeholder')){
					el.removeClass($.placeholder.settings.activeClass);
				}
				return returnValue;
			}

			if(el.hasClass($.placeholder.settings.activeClass) && el.plVal() == el.attr('placeholder')) {
				$.placeholder.log('returning empty because it\'s a placeholder');
				return '';
			} else {
				$.placeholder.log('returning original val');
				return el.plVal();
			}
		}
		$.placeholder.log('returning undefined');
		return undefined;
	};

	// Clear placeholder values upon page reload
	$(window).bind('beforeunload.placeholder', function() {
		var els = $('input.' + $.placeholder.settings.activeClass);
		if(els.length > 0)
			els.val('').attr('autocomplete','off');
	});


    // plugin code
	$.fn.placeholder = function(opts) {
		opts = $.extend({},$.placeholder.settings, opts);

		// we don't have to do anything if the browser supports placeholder
		if(!opts.overrideSupport && $.support.placeholder)
		    return this;
			
        return this.each(function() {
            var $el = $(this);

            // skip if we do not have the placeholder attribute
            if(!$el.is('[placeholder]'))
                return;

            // we cannot do password fields, but supported browsers can
            if($el.is(':password'))
                return;
			
			// Prevent values from being reapplied on refresh
			if(opts.preventRefreshIssues)
				$el.attr('autocomplete','off');

            $el.bind('focus.placeholder', function(){
                var $el = $(this);
                if(this.value == $el.attr('placeholder') && $el.hasClass(opts.activeClass))
                    $el.val('')
                       .removeClass(opts.activeClass)
                       .addClass(opts.focusClass);
            });
            $el.bind('blur.placeholder', function(){
                var $el = $(this);
				
				$el.removeClass(opts.focusClass);

                if(this.value == '')
                  $el.val($el.attr('placeholder'))
                     .addClass(opts.activeClass);
            });

            $el.triggerHandler('blur');
			
			// Prevent incorrect form values being posted
			$el.parents('form').submit(function(){
				$el.triggerHandler('focus.placeholder');
			});

        });
    };
})(jQuery);


/* End of placeholder plugin */



/* Function based on LabelIntoInputPlugin
 * (http://plugins.jquery.com/project/labelIntoInput), but severly
 * shortened to allow the placeholder plugin to do the real work. */
jQuery.fn.labelToPlaceholder = function() {
	return this.each(function(){
		var $this = $(this);
		$value = $('label[for='+$this.attr('name')+']').html();
		$('label[for='+$this.attr('name')+']').hide();
		$this.attr('placeholder', $value);
		/* Call the placeholder plugin to do the real work */
		$this.placeholder();
	});
}

$(document).ready(function() {
	/* Use the label as a placeholder for all fields in a form with the
	 * right class. */
	$('form.label-as-placeholder input[type="text"], form.label-as-placeholder textarea').labelToPlaceholder();



	/* For graceful fallback in the calendar view, the extra info is
	 * shown by default and the show and hide links are hidden by
	 * CSS. We hide the extra info and show the show link. */
	$('#calendar-list-block .extra').hide();
	$('#calendar-list-block .show-extra').show();
	/* When the show or hide link is clicked, the extra info in the
	 * next tr is toggled, as well as both the hide and show links
	 * (swapping them). */
	$('#calendar-list-block .show-extra, #calendar-list-block .hide-extra').click(function() {
		$(this).parents('tr').next().toggle();
		$('.show-extra, .hide-extra', $(this).parents('td')).toggle();
		return false;
	});


});