snippet.php

class KachingleMedallionWidget extends WP_Widget {
  function KachingleMedallionWidget() {
    $widget_ops = array('classname' => 'widget_kachingle_medallion', 'description' => __( 'Add your Kachingle Medallions') );
    $this->WP_Widget('KachingleMedallion', __('Kachingle Medallions'), $widget_ops);
  }

  /**
   * Widget version of the Medallion code
   **/
  function widget($args, $instance) {
    extract($args);

  	# Determine if we have a valid Medallion number
  	$medallion_no = $instance[KEY_KM_MEDALLION_NO];
  	if ( $medallion_no != KM_MED_NO_DEFAULT && $medallion_no != "") {
      $title = apply_filters('widget_title', empty($instance[KEY_KM_HEADING]) ? '' : $instance[KEY_KM_HEADING], $instance, $this->id_base);
      echo $before_widget;
      if ( $title )
        echo $before_title . $title . $after_title;
      // TODO When Minis are ready fix following line
    	$m_style = (KM_STYLE_NARROW == $instance[KEY_KM_STYLE]) ? KM_STYLE_NARROW : KM_STYLE_WIDE;
  		echo build_km_string($medallion_no, $m_style, ("" != $instance[KEY_KM_MESSAGE]));
      echo $after_widget;
    } else { // end if $medallion_no test
  		echo "<!-- Kachingle Medallion / No Medallion number found / should never get here -->\n";
  	}
  }

  function update($new_instance, $old_instance) {				
	  $instance = $old_instance;
	  $instance[KEY_KM_MEDALLION_NO] = strip_tags($new_instance[KEY_KM_MEDALLION_NO]);
	  $instance[KEY_KM_HEADING] = stripslashes(strip_tags($new_instance[KEY_KM_HEADING]));
	  $instance[KEY_KM_MESSAGE] = stripslashes(km_msg_filter($new_instance[KEY_KM_MESSAGE]));
	  $instance[KEY_KM_STYLE] = $new_instance[KEY_KM_STYLE];
    return $instance;
  }

  function form($instance) {
    //Defaults
    //     $defaults = array(KEY_KM_HEADING => KM_HEADING_DEFAULT, KEY_KM_MEDALLION_NO => KM_MED_NO_DEFAULT, KEY_KM_MESSAGE => KM_MESSAGE_DEFAULT, KEY_KM_STYLE => KM_STYLE_DEFAULT);
    // $instance = wp_parse_args( (array) $instance, $defaults );
		
		if(isset($instance[KEY_KM_MEDALLION_NO])) {
		  $medno = $instance[KEY_KM_MEDALLION_NO];
      $title = isset($instance[KEY_KM_HEADING]) ? $instance[KEY_KM_HEADING] : '';
      $messg = isset($instance[KEY_KM_MESSAGE]) ? $instance[KEY_KM_MESSAGE] : '';
      $style = isset($instance[KEY_KM_STYLE]) ? $instance[KEY_KM_STYLE] : KM_STYLE_DEFAULT;
    } else {
      $title = KM_HEADING_DEFAULT;
      $medno = KM_MED_NO_DEFAULT;
      $messg = KM_MESSAGE_DEFAULT;
      $style = KM_STYLE_DEFAULT;
    }

    ?>
      <p>
        <label for="<?php echo $this->get_field_id(KEY_KM_HEADING); ?>"><?php _e('Title:'); ?> 
          <input class="widefat" id="<?php echo $this->get_field_id(KEY_KM_HEADING); ?>" name="<?php echo $this->get_field_name(KEY_KM_HEADING); ?>" type="text" value="<?php echo $title; ?>" />
        </label>
      </p>
      <p>
        <label for="<?php echo $this->get_field_id(KEY_KM_MEDALLION_NO); ?>"><?php _e('Medallion Number:'); ?> 
          <input class="widefat" id="<?php echo $this->get_field_id(KEY_KM_MEDALLION_NO); ?>" name="<?php echo $this->get_field_name(KEY_KM_MEDALLION_NO); ?>" type="text" value="<?php echo $medno; ?>" />
        </label>
      </p>
      <p>
        <label for="<?php echo $this->get_field_id(KEY_KM_MESSAGE); ?>"><?php _e('Marketing Message:'); ?> 
          <input class="widefat" id="<?php echo $this->get_field_id(KEY_KM_MESSAGE); ?>" name="<?php echo $this->get_field_name(KEY_KM_MESSAGE); ?>" type="text" value="<?php echo $messg; ?>" />
        </label>
      </p>
			<p>
				<label for="<?php echo KEY_KM_STYLE ?>"><?php _e('Style'); ?>:</label>
				<?php
				echo "<select name='".KEY_KM_STYLE."' id='".KEY_KM_STYLE."'>\n";
				echo "<option value='".KM_STYLE_WIDE."'";
				if(get_option(KEY_KM_STYLE) == KM_STYLE_WIDE)
					echo " selected='selected'";
				echo ">" . __(KM_STYLE_WIDE) . "</option>\n";
				echo "<option value='".KM_STYLE_NARROW."'";
				if(get_option(KEY_KM_STYLE) == KM_STYLE_NARROW)
					echo " selected='selected'";
				echo ">" . __(KM_STYLE_NARROW) . "</option>\n";
				echo '<!-- ';
				echo "<option value='".KM_STYLE_MINI1."'";
				if(get_option(KEY_KM_STYLE) == KM_STYLE_MINI1)
					echo " selected='selected'";
				echo ">" . __(KM_STYLE_MINI1) . "</option>\n";
				echo "<option value='".KM_STYLE_MINI2."'";
				if(get_option(KEY_KM_STYLE) == KM_STYLE_MINI2)
					echo " selected='selected'";
				echo ">" . __(KM_STYLE_MINI2) . "</option>\n";
				echo '-->';
				echo "</select>\n";
				?>
			</p>
    <?php 
  }
}

function km_widgets_init() {
  if ( !is_blog_installed() )
    return;

  register_widget('KachingleMedallionWidget');
  do_action('widgets_init');
}
add_action('init', 'km_widgets_init', 1);