add_action("widgets_init", "AdSolidaire_Widget_load_widgets");

function AdSolidaire_Widget_load_widgets() {
	register_widget('AdSolidaire_Widget');
}

class AdSolidaire_Widget extends WP_Widget {
	function AdSolidaire_Widget(){
		/* Widget settings. */
		$widget_ops = array('classname' => 'Ad Solidaire', 'description' => __('Un Widget qui est capable de mettre des Advertissements du base de donnees AdSolidaire.', 'Ad Solidaire') );

		/* Widget control settings. */
		$control_ops = array( 'width' => 300, 'height' => 350, 'id_base' => 'adsolidaire-widget' );

		/* Create the widget. */
		$this->WP_Widget( 'adsolidaire-widget', __('Ad Solidaire Widget', 'adsolidaire'), $widget_ops, $control_ops );
	}
	/**
	 * Displays the widget settings controls on the widget panel.
	 * Make use of the get_field_id() and get_field_name() function
	 * when creating your form elements. This handles the confusing stuff.
	 */
	function form($instance) {
		//TODO: set default settings, need other arrays!
		//$defaults = array( 'Type' => "petit", 'Categories' => __('Test', 'example') );
		//$instance = wp_parse_args( (array) $instance );

		//print_r($instance);

		//use the main wp mysql
		global $wpdb;

		//get the current options stored in the "inivisible config of the widget"
		//$data = get_option('AdSolidaire_Widget');

		//Type of Widget (Grand,Petit,Logo)
		$alles="<p><label>Type: <select name=\"Type\" id=\"Type\">\n";
		if ($instance['Type']=="grand") {
			$alles.="	<option value=\"grand\" SELECTED>Grand</option>\n";
		} else {
			$alles.="	<option value=\"grand\">Grand</option>\n";
		}
		if ($instance['Type']=="grand") {
			$alles.="	<option value=\"petit\" SELECTED>Petit</option>\n";
		} else {
			$alles.="	<option value=\"petit\">Petit</option>\n";
		}
		if ($instance['Type']=="logo") {
			$alles.="	<option value=\"logo\" SELECTED>Logo</option>\n";
		} else {
			$alles.="	<option value=\"logo\">Logo</option>\n";
		}
		$alles.="</select></label></p>\n\n";

		echo $alles;

		// NEW : get all categories fro mthe wordpress database, so that everything corresponds
		echo $this->get_categories_checkboxes($instance['Categories']);
	}
	function widget($args,$instance){
		extract($args);

		$alles="<iframe src=\"http://www.fondationmissterre.org/blog/wp-content/plugins/AdSolidaire_Widget/showads.php\"></iframe>";
		echo $alles;
		//echo $args['after_widget'];
	}
	/**
	* Update the widget settings.
	*/
	function update( $new_instance, $old_instance ) {
		$instance = $old_instance;

		$instance['Type'] = $new_instance['Type'];
		$instance['Categories'] = $new_instance['Categories'];

		return $instance;
	}
	function get_categories_checkboxes($selected_cats = null) {
		$all_categories = get_categories();

		$o = '<p><label>Cat&eacute;gories: <ul style="margin-left:12px">';
		foreach($all_categories as $key => $cat) {
			if($cat->parent == "0") $o .= $this->__show_category($cat, $selected_cats);
		}
		return $o . '</ul></label>';
	}
	function __show_category($cat_object, $selected_cats = null) {
		$checked = "";
		if(!is_null($selected_cats) && is_array($selected_cats)) {
			$checked = (in_array($cat_object->cat_ID, $selected_cats)) ? 'checked="checked"' : "";
		}
		$ou = '<li><label><input ' . $checked .' type="checkbox" id="Categories[]" name="Categories[]" value="'. $cat_object->cat_ID .'" /> ' . $cat_object->cat_name . '</label>';
		$childs = get_categories('parent=' . $cat_object->cat_ID);

		foreach($childs as $key => $cat) {
			$ou .= '<ul style="margin-left:12px">' . $this->__show_category($cat, $selected_cats) . '</ul>';
		}

		$ou .= '</li>';
		return $ou;
	}
}