danixland-countdown.php

   1 <?php
   2 /*
   3 Plugin Name: danixland CountDown
   4 Plugin URI: http://danixland.net/?p=3330
   5 Description: A simple plugin that shows a widget with a countdown
   6 Version: 0.4
   7 Author: Danilo 'danix' Macri
   8 Author URI: http://danixland.net
   9 Text Domain: dnxcd
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  14 */
  15
  16
  17 /**
  18  * Add plugin i18n domain: dnxcd
  19  * @since 0.1
  20  */
  21 load_plugin_textdomain('dnxcd', plugins_url() . '/danixland-countdown/i18n/', 'danixland-countdown/i18n/');
  22
  23 /**
  24  * Function that installs our widget options
  25  * @since 0.1
  26  */
  27 function dnxcd_options_set() {
  28         add_option( 'dnxcd_future_date', '06-05-2020', '', 'yes' );
  29         add_option( 'dnxcd_widget_link', '', '', 'yes' );
  30         add_option( 'dnxcd_use_style', 1, '', 'yes' );
  31 }
  32
  33 /**
  34  * Function that deletes our widget options
  35  * @since 0.3
  36  */
  37 function dnxcd_options_unset() {
  38         delete_option( 'dnxcd_future_date' );
  39         delete_option( 'dnxcd_widget_link' );
  40         delete_option( 'dnxcd_use_style' );
  41 }
  42
  43 /**
  44  * Use widget's stylesheet if user wants it
  45  * @since 0.3
  46  */
  47 function dnxcd_style_handle() {
  48         wp_register_style('dnxcd_basic', plugins_url() . '/danixland-countdown/inc/style/basic.css');
  49         if( false == get_option('dnxcd_use_style') )
  50                 return;
  51         wp_enqueue_style('dnxcd_basic');
  52 }
  53 add_action( 'wp_enqueue_scripts', 'dnxcd_style_handle' );
  54
  55 /**
  56  * Add function on plugin activation that'll set our plugin options
  57  * @since 0.1
  58  */
  59 register_activation_hook( __FILE__, 'dnxcd_options_set' );
  60
  61 /**
  62  * Add function on plugin deactivation that'll unset our plugin options
  63  * @since 0.3
  64  */
  65 register_deactivation_hook( __FILE__, 'dnxcd_options_unset' );
  66
  67 /**
  68  * Add function to widgets_init that'll load our widget.
  69  * @since 0.1
  70  */
  71 add_action( 'widgets_init', 'danixland_countdown' );
  72
  73 /**
  74  * Register our widget.
  75  * 'dnx_CountDown' is the widget class used below.
  76  *
  77  * @since 0.1
  78  */
  79 function danixland_countdown() {
  80         register_widget( 'dnx_CountDown' );
  81 }
  82
  83 /**
  84  * dnx_CountDown class.
  85  * This class handles everything that needs to be handled with the widget:
  86  * the settings, form, display, and update.  Nice!
  87  *
  88  * @since 0.1
  89  */
  90 class dnx_CountDown extends WP_Widget {
  91
  92
  93     /**
  94      * Widget setup.
  95      */
  96     public function __construct() {
  97         $control_ops = array('width' => 400, 'height' => 350);
  98         parent::__construct(
  99             'dnx-countdown', // id_base
 100             __('danixland CountDown', 'dnxcd' ), // Name
 101             array( 'description' => __('Use this widget to add a simple Count Down to your Sidebar', 'dnxcd') ),
 102             $control_ops
 103         );
 104     }
 105
 106         /**
 107          * How to display the widget on the public side of the site.
 108          */
 109         public function widget( $args, $instance ) {
 110                 extract( $args );
 111
 112                 /* Our variables from the widget settings. */
 113                 $title = apply_filters('widget_title', $instance['title'] );
 114
 115                 /* Before widget (defined by themes). */
 116                 echo $before_widget;
 117
 118                 /* Display the widget title if one was input (before and after defined by themes). */
 119                 if ( $title ) {
 120                         echo $before_title . $title . $after_title;
 121                 }
 122
 123                 if ( '' != get_option('dnxcd_future_date') ) {
 124                         echo '<div class="dnx-countdown">';
 125                         $date = gmdate('U', strtotime( get_option('dnxcd_future_date') ));
 126                         $diff = $date - gmdate('U');
 127                         if ( '' != get_option('dnxcd_widget_link') ) {
 128                                 echo '<a href="' . get_option('dnxcd_widget_link') . '">';
 129                                 echo '-' . floor($diff / (24 * 60 * 60));
 130                                 echo '</a>';
 131                         } else {
 132                                 echo '-' . floor($diff / (24 * 60 * 60));
 133                         }
 134                         echo '</div> <!-- #dnx-countdown -->';
 135                         echo '<div class="dnx-days">' . __('days to go', 'dnxcd') . '</div>';
 136                 } else {
 137                         echo "<div class='dnx-warning'><a href='" . get_admin_url('', 'widgets.php', '') . "' title='" . __('configure widget', 'dnxcd') . "'>" . __('the date is missing<br />configure widget', 'dnxcd') . "</a></div>";
 138                 }
 139
 140                 /* After widget (defined by themes). */
 141                 echo $after_widget;
 142         }
 143
 144         //Update the widget
 145
 146         public function update( $new_instance, $old_instance ) {
 147                 $instance = $old_instance;
 148
 149                 //Strip tags from title and name to remove HTML
 150                 $instance['title'] = sanitize_text_field( $new_instance['title'] );
 151                 $instance['date'] = strip_tags( $new_instance['date'] );
 152                 $instance['link'] = esc_url( $new_instance['link'], array('http', 'https') );
 153                 $instance['style'] = (bool) $new_instance['style'];
 154
 155                 update_option( 'dnxcd_future_date', $instance['date'] );
 156                 update_option( 'dnxcd_widget_link', $instance['link'] );
 157                 update_option( 'dnxcd_use_style', $instance['style'] );
 158
 159                 return $instance;
 160         }
 161
 162         /**
 163          * Displays just a quick notice with a link to the Settings page
 164          */
 165         public function form( $instance ) {
 166                 $defaults = array(
 167                         'title' => __( 'Count Down', 'dnxcd' ),
 168                         'date' => get_option( 'dnxcd_future_date' ),
 169                         'link' => get_option( 'dnxcd_widget_link' ),
 170                         'style' => get_option( 'dnxcd_use_style' )
 171                 );
 172                 $instance = wp_parse_args( (array) $instance, $defaults );
 173                 extract( $instance, EXTR_SKIP );
 174                 ?>
 175
 176                 <p>
 177                         <label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e('Title:', 'dnxcd'); ?></label>
 178                         <input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" value="<?php echo $title; ?>" style="width:100%;" />
 179                 </p>
 180                 <p>
 181                         <label for="<?php echo $this->get_field_id( 'date' ); ?>"><?php _e('Future Date (dd-mm-yyyy):', 'dnxcd'); ?></label>
 182                         <input type="date" class="widefat" id="<?php echo $this->get_field_id( 'date' ); ?>" name="<?php echo $this->get_field_name( 'date' ); ?>" value="<?php echo $date ?>" style="width:100%;" />
 183                         <label for="<?php echo $this->get_field_id( 'link' ); ?>"><?php _e('Link (only http/https allowed):', 'dnxcd'); ?></label>
 184                         <input class="widefat" id="<?php echo $this->get_field_id( 'link' ); ?>" name="<?php echo $this->get_field_name( 'link' ); ?>" value="<?php echo $link; ?>" style="width:100%;" />
 185                 </p>
 186                 <p>
 187                         <input class="checkbox" type="checkbox" <?php checked( $style, true ); ?> id="<?php echo $this->get_field_id( 'style' ); ?>" name="<?php echo $this->get_field_name( 'style' ); ?>" />
 188                         <label for="<?php echo $this->get_field_id( 'style' ); ?>"><?php _e('Enable Widget Stylesheet?', 'dnxcd'); ?></label>
 189                 </p>
 190         <?php
 191         }
 192 }
 193
 194 ?>