<?php
/**
 * @package:		WordPress
 * @subpackage:		Admin Bar Button Plugin
 * @description:	Admin area settings page for the Admin Bar Button
 * @since:			2.0
 */

/**
 * Avoid direct calls to this file where WP core files are not present
 */
if(!function_exists('add_action')) :
	header('Status: 403 Forbidden');
	header('HTTP/1.1 403 Forbidden');
	exit();
endif;

/**
 * Admin Bar Button 'ABB_Settings_Page' class
 */
class ABB_Settings_Page{

	/**
	 * The menu slug of this plugin
	 *
	 * @var string
	 */
	private $settings_page = ABB_SETTINGS_PAGE;
	
	/**
	 * The menu slug of this plugin
	 *
	 * @var string
	 */
	private $plugin_text_domain = ABB_PLUGIN_TEXT_DOMAIN;
	
	/**
	 * An instance of the ABB_Options class
	 *
	 * @var ABB_Options
	 */
	private $options;
	
	/**
	 * The page hook for this plugin
	 *
	 * @var string
	 */
	private $page_hook;
	
	/**
	 * The properties of the current screen that is being displayed
	 *
	 * @var object
	 */
	private $screen;
	
	/**
	 * Constructor
	 */
	public function __construct(){
	
		$this->options = new ABB_Options();	// Grab an instance of the ABB_Options class
		$this->faq = new ABB_FAQ(false);	// Grab an instance of the ABB_Options class
		
		add_action('admin_menu', array(&$this, 'on_admin_menu'));	// Add the Admin Bar Button options Settings menu
		add_action('admin_init', array(&$this, 'on_admin_init'));	// Register the settings that can be saved by this plugin
		
	}
	
	/**
	 * Add the Admin Bar Button options Settings menu
	 */
	public function on_admin_menu(){
	
		$this->page_hook = add_options_page(
			__('Admin Bar Button Settings', $this->plugin_text_domain),	// Page title
			__('Admin Bar Button', $this->plugin_text_domain),			// Menu title
			'manage_options',											// Required capability
			$this->settings_page,										// Settings page slug
			array(&$this, 'on_show_page')								// Rendering callback
		);
		
	}
	
	/**
	 * Register the settings that can be saved by this plugin
	 */
	public function on_admin_init(){
	
		add_action('load-'.$this->page_hook, array(&$this, 'on_admin_load'));	// Set information that can only be gathered once the page has loaded
		
		register_setting(
			'admin_bar_button_group',			// Group name
			'admin_bar_button',					// Option name
			array(&$this, 'on_save_settings')	// Sanatize options callback
		);
		
		
		/*-----------------------------------------------
		  Admin Bar Button
		-----------------------------------------------*/
		
		add_settings_section(
            'abb_button_section',								// ID
            __('Admin Bar Button', $this->plugin_text_domain),	// Title
            false,												// Callback
            $this->settings_page								// Page
        );
		
		add_settings_field(
            'button_text',									// ID
            __('Button text', $this->plugin_text_domain),	// Title
            array($this, '_option_text'),					// Callback
            $this->settings_page,							// Page
            'abb_button_section',							// Section
			array(											// Args
				'label_for' 	=> 'button_text',
				'type'			=> 'text',
				'control_args'	=> array(
					'name'				=> 'admin_bar_button[button_text]',
					'class'				=> 'regular-text',
					'faq_description'	=> __('The text to display in the Admin Bar Button.  You can set this to anything you want, the button will resize appropriately.', $this->plugin_text_domain)
				)
			)
        );
		
		add_settings_field(
            'button_position',
            __('Position on the screen', $this->plugin_text_domain),
            array($this, '_option_select'),
            $this->settings_page,
            'abb_button_section',
			array(
				'label_for' 	=> 'button_position',
				'type'			=> 'select',
				'control_args'	=> array(
					'name'				=> 'admin_bar_button[button_position]',
					'faq_description'	=> __('Where on the screen to position the Admin Bar Button.  You can place the button in any of the four corners.  If you choose \'Bottom left\' or \'Bottom right\' then the WordPress admin bar will also be shown on the bottom of the screen.', $this->plugin_text_domain)
				)
			)
        );
		
		add_settings_field(
            'button_activate',
            __('Button activated on', $this->plugin_text_domain),
            array($this, '_option_select'),
            $this->settings_page,
            'abb_button_section',
			array(
				'label_for' 	=> 'button_activate',
				'type'			=> 'select',
				'control_args'	=> array(
					'name'				=> 'admin_bar_button[button_activate]',
					'faq_description'	=> __('The actions that will activate the WordPress admin bar.  Currently you can choose between when the user clicks the button, when they hover over it, or both.', $this->plugin_text_domain)
				)
			)
        );
		
		
		/*-----------------------------------------------
		  WordPress Admin Bar
		-----------------------------------------------*/
		
		add_settings_section(
            'abb_bar_section',										// ID
            __('WordPress Admin Bar', $this->plugin_text_domain),	// Title
            false,													// Callback
            $this->settings_page									// Page
        );
		
		add_settings_field(
            'bar_reserve_space',							// ID
            __('Reserve space', $this->plugin_text_domain),	// Title
            array($this, '_option_checkbox'),				// Callback
            $this->settings_page,							// Page
            'abb_bar_section',								// Section
			array(											// Args
				'label_for' 	=> 'bar_reserve_space',
				'type'			=> 'checkbox',
				'control_args'	=> array(
					'name'			=> 'admin_bar_button[bar_reserve_space]',
					'description'	=> __('Whether or not to reserve space at the top of the page for the WordPress admin bar.', $this->plugin_text_domain),
					'tips'			=> array(
						array(
							__('Tip', $this->plugin_text_domain),
							__('The default WordPress admin bar does this, but for most sites it\'s unnecessary.', $this->plugin_text_domain)
						)
					)
				)
			)
			
        );
		
		add_settings_field(
            'bar_auto_hide',
            __('Auto-hide the admin bar', $this->plugin_text_domain),
            array($this, '_option_checkbox'),
            $this->settings_page,
            'abb_bar_section',
			array(
				'label_for' 	=> 'bar_auto_hide',
				'type'			=> 'checkbox',
				'control_args'	=> array(
					'name'			=> 'admin_bar_button[bar_auto_hide]',
					'description'	=> __('Whether or not to automatically hide the WordPress admin bar.', $this->plugin_text_domain)
				)
			)
        );
		
		add_settings_field(
            'bar_show_time',
            __('Admin bar show time (milliseconds)', $this->plugin_text_domain),
            array($this, '_option_text'),
            $this->settings_page,
            'abb_bar_section',
			array(
				'label_for' 	=> 'bar_show_time',
				'type'			=> 'text',
				'control_args'	=> array(
					'name'				=> 'admin_bar_button[bar_show_time]',
					'description'		=> __('The time that the WordPress admin bar will be visible for.', $this->plugin_text_domain),
					'faq_description'	=> __('The time (in milliseconds) that the WordPress admin bar will be shown for.  The minimum time is 5000 (5 seconds), and setting this option to less than that will result in the default being used.  This option is irrelevant and so ignored if <strong>Auto-hide the admin bar</strong> is not checked.', $this->plugin_text_domain),
					'tips'				=> array(
						array(
							__('Tip', $this->plugin_text_domain),
							__('The minimum value is 5000 (5 seconds).', $this->plugin_text_domain)
						)
					)
				)
			)
        );
		
		add_settings_field(
            'show_hide_button',
            __('Show the hide button', $this->plugin_text_domain),
            array($this, '_option_checkbox'),
            $this->settings_page,
            'abb_bar_section',
			array(
				'label_for' 	=> 'show_hide_button',
				'type'			=> 'checkbox',
				'control_args'	=> array(
					'name'				=> 'admin_bar_button[show_hide_button]',
					'description'		=> __('Whether or not to include a \'Hide\' button on the WordPress admin bar.', $this->plugin_text_domain),
					'faq_description'	=> __('Whether or not to include a \'Hide\' button on the WordPress admin bar.  This is recommended if you\'ve not checked <strong>Auto-hide the admin bar</strong>', $this->plugin_text_domain),
					'tips'				=> array(
						array(
							__('Tip', $this->plugin_text_domain),
							__('Recommended if you\'ve not checked <strong>Auto-hide the admin bar</strong>.', $this->plugin_text_domain)
						)
					)
				)
			)
        );
		
		add_settings_field(
            'show_wordpress_menu',
            __('Show the WordPress menu', $this->plugin_text_domain),
            array($this, '_option_checkbox'),
            $this->settings_page,
            'abb_bar_section',
			array(
				'label_for' 	=> 'show_wordpress_menu',
				'type'			=> 'checkbox',
				'control_args'	=> array(
					'name'				=> 'admin_bar_button[show_wordpress_menu]',
					'description'		=> __('Whether or not to include the WordPress menu on the WordPress admin bar, when it\'s shown.', $this->plugin_text_domain),
					'faq_description'	=> __('Whether or not to include the WordPress menu on the WordPress admin bar, when it\'s shown.  Beware that you\'ll lose access to all of the links in the WordPress menu if it\'s not shown.', $this->plugin_text_domain),
					'tips'				=> array(
						array(
							__('Tip', $this->plugin_text_domain),
							__('You\'ll lose access to all of the links in the WordPress menu if it\'s not shown.', $this->plugin_text_domain)
						)
					)
				)
			)
        );
		
		
		/*-----------------------------------------------
		  Admin Bar Button / WordPress Admin Bar Colours
		-----------------------------------------------*/
		
		add_settings_section(
            'abb_colours_section',						// ID
            __('Colours', $this->plugin_text_domain),	// Title
            false,										// Callback
            $this->settings_page						// Page
        );
		
		add_settings_field(
            'admin_bar_colour',									// ID
            __('Background colour', $this->plugin_text_domain),	// Title
            array($this, '_option_text'),						// Callback
            $this->settings_page,								// Page
            'abb_colours_section',								// Section
			array(												// Args
				'id' 			=> 'admin_bar_colour',
				'type'			=> 'text',
				'control_args'	=> array(
					'name'			=> 'admin_bar_button[admin_bar_colour]',
					'class'			=> 'abb-colour-picker',
					'description'	=> __('The background colour of the Admin Bar Button and the WordPress admin bar', $this->plugin_text_domain)
				)
			)
        );
		
		add_settings_field(
            'admin_bar_colour_hover',
            __('Background colour (hover)', $this->plugin_text_domain),
            array($this, '_option_text'),
            $this->settings_page,
            'abb_colours_section',
			array(
				'id' 			=> 'admin_bar_colour_hover',
				'type'			=> 'text',
				'control_args'	=> array(
					'name'				=> 'admin_bar_button[admin_bar_colour_hover]',
					'class'				=> 'abb-colour-picker',
					'description'		=> __('The background hover colour of the Admin Bar Button and the WordPress admin bar.', $this->plugin_text_domain),
					'faq_description'	=> __('The background hover colour of the Admin Bar Button and the WordPress admin bar. Also changes the WordPress admin bar sub-menus background colour. Note that only the colour of buttons which are hovered will change, not the entire WordPress admin bar.', $this->plugin_text_domain),
					'tips'				=> array(
						array(
							__('Tip', $this->plugin_text_domain),
							__('Also changes the WordPress Admin Bar sub-menus background colour.', $this->plugin_text_domain)
						)
					)
				)
			)
        );
		
		add_settings_field(
            'text_colour',
            __('Text colour', $this->plugin_text_domain),
            array($this, '_option_text'),
            $this->settings_page,
            'abb_colours_section',
			array(
				'id' 			=> 'text_colour',
				'type'			=> 'text',
				'control_args'	=> array(
					'name'			=> 'admin_bar_button[text_colour]',
					'class'			=> 'abb-colour-picker',
					'description'	=> __('The colour of the text for the Admin Bar Button and the WordPress admin bar.', $this->plugin_text_domain)
				)
			)
        );
		
		add_settings_field(
            'text_colour_hover',
            __('Text colour (hover)', $this->plugin_text_domain),
            array($this, '_option_text'),
            $this->settings_page,
            'abb_colours_section',
			array(
				'id' 			=> 'text_colour_hover',
				'type'			=> 'text',
				'control_args'	=> array(
					'name'			=> 'admin_bar_button[text_colour_hover]',
					'class'			=> 'abb-colour-picker',
					'description'	=> __('The hover colour of the text for the Admin Bar Button and the WordPress admin bar.', $this->plugin_text_domain)
				)
			)
        );
		
		
		/*-----------------------------------------------
		  Animations
		-----------------------------------------------*/
		
		add_settings_section(
            'abb_animation_section',					// ID
            __('Animation', $this->plugin_text_domain),	// Title
            false,										// Callback
            $this->settings_page						// Page
        );
		
		add_settings_field(
            'animate',											// ID
            __('Animate actions', $this->plugin_text_domain),	// Title
            array($this, '_option_checkbox'),					// Callback
            $this->settings_page,								// Page
            'abb_animation_section',							// Section
			array(												// Args
				'label_for' 	=> 'animate',
				'type'			=> 'checkbox',
				'control_args'	=> array(
					'name'			=> 'admin_bar_button[animate]',
					'description'	=> __('Whether or not to animate the showing/hiding of the WordPress admin bar.', $this->plugin_text_domain)
				)
			)
        );
		
		add_settings_field(
            'animate_duration',
            __('Animation duration (milliseconds)', $this->plugin_text_domain),
            array($this, '_option_text'),
            $this->settings_page,
            'abb_animation_section',
			array(
				'label_for' 	=> 'animate_duration',
				'type'			=> 'text',
				'control_args'	=> array(
					'name'				=> 'admin_bar_button[animate_duration]',
					'description'		=> __('The time that it takes for the Admin Bar Button to slide off of the screen and be replaced by the WordPress admin bar (and vice versa).', $this->plugin_text_domain),
					'faq_description'	=> __('The time (in milliseconds) that it takes for the Admin Bar Button to slide off of the screen and be replaced by the WordPress admin bar (and vice versa).  Any positive value is acceptable, and setting \'0\' will disable the animation.', $this->plugin_text_domain)
				)
			)
        );
		
		add_settings_field(
            'animate_direction',
            __('Animation direction', $this->plugin_text_domain),
            array($this, '_option_select'),
            $this->settings_page,
            'abb_animation_section',
			array(
				'label_for' 	=> 'animate_direction',
				'type'			=> 'select',
				'control_args'	=> array(
					'name'			=> 'admin_bar_button[animate_direction]',
					'description'	=> __('The direction in which the WordPress admin bar will enter/exit the screen.', $this->plugin_text_domain)
				)
			)
        );
		
	}
	
	/**
	 * Grab the current screen and add contextual help
	 */
	public function on_admin_load(){
	
		add_action('admin_enqueue_scripts', array(&$this, 'on_admin_enqueue_scripts'));				// Enqueue the necessary admin scripts/styeles
		add_action('admin_print_styles-'.$this->page_hook, array(&$this, 'on_admin_print_styles'));	// Print the necessary admin styles
		
		$this->screen = get_current_screen();	// Grab the current screen
		
		$this->screen->set_help_sidebar($this->do_help_sidebar());
		
		$this->screen->add_help_tab(array(
			'id'		=> 'description',
			'title'		=> __('Description'),
			'callback'	=> array(&$this, 'do_help_description')
		));
		
		$this->screen->add_help_tab(array(
			'id'		=> 'faq',
			'title'		=> __('FAQ'),
			'callback'	=> array(&$this, 'do_help_faq')
		));
		
		$this->screen->add_help_tab(array(
			'id'		=> 'support',
			'title'		=> __('Support'),
			'callback'	=> array(&$this, 'do_help_support')
		));
		
		$this->screen->add_help_tab(array(
			'id'		=> 'donate',
			'title'		=> __('Donate'),
			'callback'	=> array(&$this, 'do_help_donate')
		));
		
	}
	
	/**
	 * Enqueue the necessary admin scripts/styles
	 */
	public function on_admin_enqueue_scripts(){
	
		/** Enqueue the required scripts/styles */
		wp_enqueue_style('wp-color-picker');
		wp_enqueue_style('abb-colour-picker', plugins_url('css/rgba-color-picker.css?scope=admin-bar-button', __FILE__));
		wp_enqueue_script('abb-colour-picker', plugins_url('js/rgba-color-picker.js?scope=admin-bar-button', __FILE__), array('jquery','wp-color-picker'), '', true);
		wp_enqueue_style('abb-admin', plugins_url('css/abb-admin.css?scope=admin-bar-button', __FILE__));
		wp_enqueue_script('abb-admin', plugins_url('js/abb-admin.js?scope=admin-bar-button', __FILE__), array('jquery-ui-tabs'));
		
	}
	
	/**
	 * Enqueue the necessary admin styles
	 */
	public function on_admin_print_styles(){
?>
<style>
.tips{
	display: inline-block;
	font-style:	italic;
	margin-left: 10px;
	vertical-align: middle;
}
.tip{
	display: block;
}
</style>
<?php
	}
	
	/**
	 * Render the plugin page
	 */
	public function on_show_page(){
	
?>
		<div id="admin-bar-button-page" class="wrap admin-bar-button">
		
			<h1><?php _e('Admin Bar Button Settings', $this->plugin_text_domain); ?></h1>
			
			<?php $this->do_settings_sections_tabs($this->settings_page); ?>
			<?php $this->do_settings_sections_tab_content($this->settings_page); ?>
			
		</div>
<?php
	}
	
	/**
	 * Sanitize the option on save
	 */
	public function on_save_settings($input){
	
		/** Check to see if the options should be restored to default */
		if(isset($_POST['delete'])) :
			delete_option('admin_bar_button');
			return;
		endif;
		
		if(!isset($_POST['submit'])) return;	// Ensure the user is supposed to be here
		
		$this->options = new ABB_Options();	// Grab an instance of the ABB_Options class
		
		$new_input = array(
			'button_text'				=> $this->sanitize_text($input, 'button_text'),					// Button - text
			'button_position'			=> $this->sanitize_select($input, 'button_position'),			// Button - position
			'button_activate'			=> $this->sanitize_select($input, 'button_activate'),			// Button - activate
			'bar_reserve_space'			=> $this->sanitize_checkbox($input, 'bar_reserve_space'),		// Bar - reserve space
			'bar_auto_hide'				=> $this->sanitize_checkbox($input, 'bar_auto_hide'),			// Bar - auto-hide
			'bar_show_time'				=> $this->sanitize_int($input, 'bar_show_time', 2000),			// Bar - show time
			'show_hide_button'			=> $this->sanitize_checkbox($input, 'show_hide_button'),		// Bar - show hide button
			'show_wordpress_menu'		=> $this->sanitize_checkbox($input, 'show_wordpress_menu'),		// Bar - show WordPress menu
			'admin_bar_colour'			=> $this->sanitize_hex_rgba($input, 'admin_bar_colour'),		// Colours - bar background
			'admin_bar_colour_hover'	=> $this->sanitize_hex_rgba($input, 'admin_bar_colour_hover'),	// Colours - bar background (hover)
			'text_colour'				=> $this->sanitize_hex_rgba($input, 'text_colour'),				// Colours - text
			'text_colour_hover'			=> $this->sanitize_hex_rgba($input, 'text_colour_hover'),		// Colours - text (hover)
			'animate'					=> $this->sanitize_checkbox($input, 'animate'),					// Animations - animate actions
			'animate_duration'			=> $this->sanitize_int($input, 'animate_duration', 0),			// Animations - duration
			'animate_direction'			=> $this->sanitize_select($input, 'animate_direction')			// Animations - direction
		);
		
		return array_filter($new_input, array(&$this, '_filter_not_false'));
		
	}
	
	/**
	 * Sanitize an <input type="text"> option before it is saved
	 *
	 * @param required array $input			The unsanitized options
	 * @param required string $option_id	The ID of the option to sanitize
	 * @return string|boolean				The sanitized option, or false on error
	 */
	private function sanitize_text($input, $option_id){
	
		if(isset($input[$option_id])) :
            $text = sanitize_text_field($input[$option_id]);
			return ($text !== '') ? $text : $this->options->get_default($option_id);
		endif;
		
		return false;
		
	}
	
	/**
	 * Sanitize an <input type="checkbox"> option before it is saved
	 *
	 * @param required array $input			The unsanitized options
	 * @param required string $option_id	The ID of the option to sanitize
	 * @return string|boolean				The sanitized option, or false on error
	 */
	private function sanitize_checkbox($input, $option_id){
	
		if(isset($input[$option_id])) :
			return (isset($input[$option_id])) ? $input[$option_id] : intval($this->options->get_default($option_id));
		endif;
		
		return false;
		
	}
	
	/**
	 * Sanitize a <select> option before it is saved
	 *
	 * @param required array $input			The unsanitized options
	 * @param required string $option_id	The ID of the option to sanitize
	 * @return string|boolean				The sanitized option, or false on error
	 */
	private function sanitize_select($input, $option_id){
	
		if(isset($input[$option_id])) :
			return (array_key_exists($input[$option_id], $this->options->get_select($option_id))) ? $input[$option_id] : $this->options->get_default($option_id);
		endif;
		
		return false;
		
	}
	
	/**
	 * Sanitize an <input type="text"> option before it is saved
	 * The option must be an absolute integer, and can have a minimum value if required
	 *
	 * @param required array $input			The unsanitized options
	 * @param required string $option_id	The ID of the option to sanitize
	 * @param integer|boolean $minimum		The minimum acceptable value
	 * @return string|boolean				The sanitized option, or false on error
	 */
	private function sanitize_int($input, $option_id, $minimum = false){
	
		if(isset($input[$option_id])) :
           
			$val = absint($input[$option_id]);
			
			if(is_int($minimum)) :
				return ($val >= $minimum) ? $val : $this->options->get_default($option_id);
			else :
				return $val;
			endif;
			
		endif;
		
		return false;
		
	}
	
	/**
	 * Sanitize an <input type="text> option before it is saved
	 * The option must be in the format of hex ([#]000[000]) or RGBA (rgba(255,[ ]255,[ ]255,[ ]0.99)
	 *
	 * @param required array $input			The unsanitized options
	 * @param required string $option_id	The ID of the option to sanitize
	 * @return string|boolean				The sanitized option, or false on error
	 */
	private function sanitize_hex_rgba($input, $option_id){
	
		if(isset($input[$option_id])) :
		
			$colour = $input[$option_id];
			
			if(!$colour[0] === '#')	// Ensure that the hex colour starts with a '#'
				$colour = '#'.$colour;
				
			return (preg_match('/(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)|(rgba\(\d+\,\d+\,\d+\,([^\)]+)\))/i', $colour)) ? $colour : $this->options->get_default($option_id);
			
		endif;
		
		return false;
		
	}
	
	/**
	 * Array filter for removing values that equal boolean 'false'
	 *
	 * @param required mixed $var	The value to check
	 * @return boolean				Whether or not the value is valid
	 */
	public function _filter_not_false($val){
		return ($val !== false);
	}
	
	/**
	 * Output the help sidebar
	 */
	private function do_help_sidebar(){
	
		ob_start();
?>
			<p>
				<strong><?php _e('For more information', $this->plugin_text_domain); ?>:</strong>
			</p>
			<p>
				<a href="http://wordpress.org/plugins/admin-bar-button/" title="'<?php esc_attr_e('Admin Bar Button', $this->plugin_text_domain); ?>">
					<?php _e('Visit the Plugin Page', $this->plugin_text_domain); ?>
				</a>
			</p>
<?php
		return ob_get_clean();
	
	}
	
	/**
	 * Callback for outputting the 'Description' halp tab
	 */
	public function do_help_description(){
?>
		<p>
			<?php _e('Thanks for installing Admin Bar Button, I hope that you like the plugin.', $this->plugin_text_domain); ?>
		</p>
		<p>
			<?php _e('Admin Bar Button is a plugin that will create a simple button to replace the default WordPress admin bar on the front end.  ', $this->plugin_text_domain); ?>
			<?php _e('When using this plugin, the full height of the page is used by your site, which is particularly handy if you have fixed headers.', $this->plugin_text_domain); ?>
		</p>
		<p>
			<?php _e('Please see the ', $this->plugin_text_domain); ?>
			<a href="http://wordpress.org/plugins/admin-bar-button/screenshots/" title="<?php esc_attr_e('Admin Bar Button &raquo; Screenshots', $this->plugin_text_domain); ?>">
				<?php _e('these screenshots', $this->plugin_text_domain); ?>
			</a>
			<?php _e('to see how the Admin Bar Button looks.', $this->plugin_text_domain); ?>
		</p>
<?php
	}
	
	/**
	 * Callback for outputting the 'FAQ' halp tab
	 */
	public function do_help_faq(){
		$this->faq->do_faq(false);
	}
	
	/**
	 * Callback for outputting the 'Support' halp tab
	 */
	public function do_help_support(){
?>
		<p>
			<?php _e('If you find a bug with this plugin please report it on the ', $this->plugin_text_domain); ?>
			<a href="http://wordpress.org/support/plugin/admin-bar-button" title="<?php esc_attr_e('Admin Bar Button &raquo; Support', $this->plugin_text_domain); ?>">
				<?php _e('plugin support page', $this->plugin_text_domain); ?>
			</a>
			<?php _e('and I\'ll do my best to fix the problem quickly for you.', $this->plugin_text_domain); ?>
		</p>
		<p>
			<?php _e('General comments, gripes and requests relating to this plugin are also welcome, especially if you are using a theme with which this plugin does not function correctly.', $this->plugin_text_domain); ?>
		</p>
<?php
	}
	
	/**
	 * Callback for outputting the 'Donate' halp tab
	 */
	public function do_help_donate(){
?>
		<p>
			<?php _e('This plugin is free to use and you may distribute it as you please', $this->plugin_text_domain); ?>
		</p>
		<p>
			<?php _e('I love coding and have made this plugin because it was something I felt was useful, and hopefully you will to.  ', $this->plugin_text_domain); ?>
			<?php _e('There is absolutely no obligation for you to do so, but if you like my work I\'d be very grateful for any donations that you wish to make.', $this->plugin_text_domain); ?>
		</p>
		<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_top">
			<input type="hidden" name="cmd" value="_s-xclick">
			<input type="hidden" name="hosted_button_id" value="3DPCXL86N299A">
			<input type="image" src="https://www.paypalobjects.com/en_US/GB/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal � The safer, easier way to pay online.">
			<img alt="" border="0" src="https://www.paypalobjects.com/en_GB/i/scr/pixel.gif" width="1" height="1">
		</form>
<?php
	}
	
	/**
	 * Output a tab for each of the setting sections
	 *
	 * @param required string $page	The plugin page to outplt settings for
	 */
	private function do_settings_sections_tabs($page){
	
		global $wp_settings_sections;
		
		if(!isset($wp_settings_sections[$page]))
			return;
		
		echo '<h2 class="nav-tab-wrapper wp-clearfix">';
		
		foreach((array)$wp_settings_sections[$page] as $section) :
		
			if(!isset($section['title']))
				continue;
			
			printf('<a id="%1$s" class="nav-tab">%2$s</a>',
				/** %1$s - The ID of the tab */			$section['id'],
				/** %2$s - The Title of the section */	$section['title']
			);
			
		endforeach;
		
		do_action('abb_after_tabs');
		
		echo '</h2>';
		
	}
	
	/**
	 * Output the tab content for each of the setting sections
	 *
	 * @param required string $page	The plugin page to outplt settings for
	 */
	private function do_settings_sections_tab_content($page){
	
		global $wp_settings_sections, $wp_settings_fields;
		
		if(!isset($wp_settings_sections[$page]))
			return;
		
		echo '<form action="options.php" method="post">';
		settings_fields('admin_bar_button_group');
		
		foreach((array)$wp_settings_sections[$page] as $section) :
		
			printf('<div id="content-%1$s" class="nav-tab-content">',
				/** %1$s - The ID of the tab content */		$section['id']
			);
			
			if(!isset($section['title']))
				continue;
			
			if($section['callback'])
				call_user_func($section['callback'], $section);
			
			if(!isset($wp_settings_fields) || !isset($wp_settings_fields[$page]) || !isset($wp_settings_fields[$page][$section['id']]))
				continue;
				
			echo '<table class="form-table">';
			do_settings_fields($page, $section['id']);
			echo '</table>';
			
			echo '</div>';
			
		endforeach;
		
		do_action('abb_after_tab_contents');
		
		echo '<p>';
			submit_button('Save Changes', 'primary', 'submit', false);
			submit_button('Restore Defaults', 'delete', 'delete', false);
		echo '</p>';
		
		echo '</form>';
		
	}
	
	/**
	 * Output an option of the $type specified
	 *
	 * @param required string $type	The type of option to output
	 * @parma required string $id	The ID of the option that is to be output
	 * @param array $args			The arguments to use for the option that is to be output
	 */
	private function do_option($type, $id, $args = array()){
	
		switch($type) :
		
			case 'text' :
				$this->do_option_text($id, $args);
				break;
			case 'checkbox' :
				$this->do_option_checkbox($id, $args);
				break;
			case 'select' :
				$this->do_option_select($id, $args);
				break;
		
		endswitch;
		
	}
	
	/**
	 * Output a text <input> option
	 *
	 * @parma required string $id	The ID of the option that is to be output
	 * @param array $args			The arguments to use for the option that is to be output
	 */
	private function do_option_text($id, $args = array()){
	
		$defaults = array(
			'name'			=> '',
			'value'			=> false,
			'class'			=> '',
			'description'	=> false,
			'tips'			=> false,
			'readonly'		=> false
		);
		$args = wp_parse_args($args, $defaults);
		extract($args, EXTR_OVERWRITE);
		
		$name = ($name !== '') ? $name : $id;
		$readonly = ($readonly) ? 'readonly="true"' : false;
		
		printf(
			"\n\t".'<input type="text" id="%1$s" class="%2$s" name="%3$s" value="%4$s" %5$s />'."\n",
			$id,		/** %1$s - The ID of the input */
			$class,		/** %2$s - The class of the input */
			$name,		/** %3$s - The name of the select */
			$value,		/** %4$s - The value of the option */
			$readonly	/** %5$s - Whether or not the option is readonly */
		);
		
		$this->do_tips($tips);
		$this->do_description($description);
		
	}
	
	/**
	 * Output a checkbox <input> option
	 *
	 * @parma required string $id	The ID of the option that is to be output
	 * @param array $args			The arguments to use for the option that is to be output
	 */
	private function do_option_checkbox($id, $args = array()){
	
		$defaults = array(
			'name'			=> '',
			'checked'		=> false,
			'class'			=> '',
			'description'	=> false,
			'tips'			=> false
		);
		$args = wp_parse_args($args, $defaults);
		extract($args, EXTR_OVERWRITE);
		
		$name = ($name !== '') ? $name : $id;
		$checked = ($checked) ? 'checked="true"' : false;
		
		/** Include a hidden input with a value of '0' so that unchecked boxes are given a vaule when _POSTed */
		printf(
			"\n\t".'<input type="hidden" id="%1$s-hidden" class="%2$s" name="%3$s" value="0" />'."\n",
			$id,		/** %1$s - The ID of the input */
			$class,		/** %2$s - The class of the input */
			$name		/** %3$s - The name of the select */
		);
		
		printf(
			"\n\t".'<input type="checkbox" id="%1$s" class="%2$s" name="%3$s" value="1" %4$s />'."\n",
			$id,		/** %1$s - The ID of the input */
			$class,		/** %2$s - The class of the input */
			$name,		/** %3$s - The name of the select */
			$checked	/** %4$s - Whether or not the checkbox is checked */
		);
		
		$this->do_tips($tips);
		$this->do_description($description);
		
	}
	
	/**
	 * Output a <select> option
	 *
	 * @parma required string $id	The ID of the option that is to be output
	 * @param array $args			The arguments to use for the option that is to be output
	 */
	private function do_option_select($id, $args = array()){
	
		$defaults = array(
			'name'			=> '',
			'options'		=> array(),
			'selected'		=> false,
			'class'			=> '',
			'optgroup'		=> 'Select an option',
			'description'	=> false,
			'tips'			=> false,
			'disabled'		=> false
		);
		$args = wp_parse_args($args, $defaults);
		extract($args, EXTR_OVERWRITE);
		
		$name = ($name !== '') ? $name : $id;
		$disabled = ($disabled) ? 'disabled="true"' : false;
		
		if(!empty($options)) :
		
			/** Include a hidden input with the option value so that disabled selects are given a vaule when _POSTed */
			printf(
				"\n\t".'<input type="hidden" id="%1$s-hidden" class="%2$s" name="%3$s" value="%4$s" />'."\n",
				$id,		/** %1$s - The ID of the input */
				$class,		/** %2$s - The class of the input */
				$name,		/** %3$s - The name of the select */
				$selected	/** %4$s - The currently selected value */
			);
			
			printf(
				"\n\t".'<select id="%1$s" class="%2$s" name="%3$s" %4$s>'."\n",
				$id,		/** %1$s - The ID of the select */
				$class,		/** %2$s - The class of the select */
				$name,		/** %3$s - The name of the select */
				$disabled	/** %4$s - Whether or no the select is disabled */
			);
			
			if($optgroup) :
				printf(
					'<optgroup label="%1$s">',
					$optgroup	/** %1$s - The title of the Option Group for this set of options */
				);
			endif;
			
			foreach($options as $option => $text) :
			
				$is_selected = ($option === $selected) ? ' selected="true"' : false;
				printf(
					"\t\t".'<option value="%1$s"%2$s>%3$s</option>'."\n",
					$option,		/** %1$s - The option value */
					$is_selected,	/** %2$s - Whether or not the option is selected */
					$text			/** %3$s - The option text */
				);
				
			endforeach;
			
			if($optgroup) :
				echo '</optgroup>';
			endif;
			
			echo "\t".'</select>'."\n";
			
		endif;
		
		$this->do_tips($tips);
		$this->do_description($description);
		
	}
	
	/**
	 * Output a description underneath an option
	 *
	 * @since 2.2
	 * @param required mixed $description	The description to output
	 */
	private function do_description($description){
	
		if(is_string($description)) :
			printf(
				"\n\t".'<p class="description">%1$s</p>'."\n",
				$description	/** %1$s - A brief description of the option */
			);
		endif;
		
	}
	
	/**
	 * Output a tip next do an option
	 *
	 * @since 2.2
	 * @param required array $tips	The tips to output (must be an array of arrays)
	 */
	private function do_tips($tips){
	
		if(!empty($tips)) :
		
			echo '<span class="tips">';
			
			foreach($tips as $tip) :
		
				if(is_array($tip)) :
					printf(
						"\n\t".'<span class="tip"><strong>%1$s:</strong> %2$s</span>'."\n",
						$tip[0],	/** %1$s - The tip prefix */
						$tip[1]		/** %2$s - The tip to display */
					);
				elseif(is_string($tip)) :
					printf(
						"\n\t".'<span class="tip">%1$s</span>'."\n",
						$tip	/** %1$s - The tip to display */
					);
				endif;
				
			endforeach;
			
			echo '</span>';
			
		endif;
		
	}
	
	/**
	 * Callback for outputting  an <input type="text"> option
	 *
	 * @param required array $args	The option args
	 */
	public function _option_text($args){
	
		$id = (isset($args['id'])) ? $args['id'] : $args['label_for'];	// Grab the option ID
		$args['control_args']['value'] = $this->options->get($id);		// Get the value currently saved for this option
		
		$this->do_option(
			$args['type'],			// Option type
			$id,					// ID
			$args['control_args']	// Args
		);
		
	}
	
	/**
	 * Callback for outputting  an <input type="checkbox"> option
	 *
	 * @param required array $args	The option args
	 */
	public function _option_checkbox($args){
	
		$id = (isset($args['id'])) ? $args['id'] : $args['label_for'];	// Grab the option ID
		$args['control_args']['checked'] = ($this->options->get($id));	// Whether or not this option should be 'checked'
		
		$this->do_option(
			$args['type'],			// Option type
			$id,					// ID
			$args['control_args']	// Args
		);
		
	}
	
	/**
	 * Callback for outputting a <select> option
	 *
	 * @param required array $args	The option args
	 */
	public function _option_select($args){
	
		$id = (isset($args['id'])) ? $args['id'] : $args['label_for'];		// Grab the option ID
		$args['control_args']['options'] = $this->options->get_select($id);	// Get the valid options for this setting
		$args['control_args']['selected'] = $this->options->get($id);		// Get the value currently selected for this option
		
		$this->do_option(
			$args['type'],			// Option type
			$id,					// ID
			$args['control_args']	// Args
		);
		
	}
	
}
?>