From 48ee9fb77a8422af7a941057a7549350a6a702c0 Mon Sep 17 00:00:00 2001
From: Mike Jolley <mike.jolley@me.com>
Date: Tue, 27 Sep 2011 10:38:29 +0100
Subject: [PATCH] Multiselect

---
 classes/gateways/gateway.class.php | 61 ++++++++++++++++++++++++++++--
 1 file changed, 57 insertions(+), 4 deletions(-)

diff --git a/classes/gateways/gateway.class.php b/classes/gateways/gateway.class.php
index 925b7f6338e..1d1a966d80a 100644
--- a/classes/gateways/gateway.class.php
+++ b/classes/gateways/gateway.class.php
@@ -301,6 +301,40 @@ class woocommerce_payment_gateway {
     	return $html;
     } // End generate_select_html()
     
+    /**
+     * Generate Multiselect HTML.
+     *
+     * @since 1.0.0
+     * @return $html string
+     */
+    function generate_multiselect_html ( $key, $data ) {
+    	$html = '';
+    	
+    	if ( isset( $data['title'] ) && $data['title'] != '' ) { $title = $data['title']; }
+    	$data['options'] = (isset( $data['options'] )) ? (array) $data['options'] : array();
+    	
+		$html .= '<tr valign="top">' . "\n";
+			$html .= '<th scope="row" class="titledesc">' . $title . '</th>' . "\n";
+			$html .= '<td class="forminp">' . "\n";
+				$html .= '<fieldset><legend class="screen-reader-text"><span>' . $title . '</span></legend>' . "\n";
+				$html .= '<label for="' . $this->plugin_id . $this->id . '_' . $key . '">';
+				$html .= '<select multiple="multiple" style="min-width:25%;height:100px;vertical-align:top;" class="multiselect" name="' . $this->plugin_id . $this->id . '_' . $key . '[]" id="' . $this->plugin_id . $this->id . '_' . $key . '">';
+				
+				foreach ($data['options'] as $option_key => $option_value) :
+					$html .= '<option value="'.$option_key.'" ';
+					if (isset($this->settings[$key]) && in_array($option_key, (array) $this->settings[$key])) $html .= 'selected="selected"';
+					$html .= '>'.$option_value.'</option>';
+				endforeach;
+
+				$html .= '</select>';
+				if ( isset( $data['description'] ) && $data['description'] != '' ) { $html .= '<span class="description">' . $data['description'] . '</span>' . "\n"; }
+			$html .= '</fieldset>';
+			$html .= '</td>' . "\n";
+		$html .= '</tr>' . "\n";
+    	
+    	return $html;
+    } // End generate_select_html()
+    
     /**
      * Validate Settings Field Data.
      *
@@ -348,7 +382,7 @@ class woocommerce_payment_gateway {
      * @return $text string
      */
     function validate_text_field ( $key ) {
-    	$text = $this->settings[$key];
+    	$text = (isset($this->settings[$key])) ? $this->settings[$key] : '';
     	
     	if ( isset( $_POST[$this->plugin_id . $this->id . '_' . $key] ) && ( '' != $_POST[$this->plugin_id . $this->id . '_' . $key] ) ) {
     		$text = esc_attr( woocommerce_clean( $_POST[$this->plugin_id . $this->id . '_' . $key] ) );
@@ -366,7 +400,7 @@ class woocommerce_payment_gateway {
      * @return $text string
      */
     function validate_textarea_field ( $key ) {
-    	$text = $this->settings[$key];
+    	$text = (isset($this->settings[$key])) ? $this->settings[$key] : '';
     	
     	if ( isset( $_POST[$this->plugin_id . $this->id . '_' . $key] ) && ( '' != $_POST[$this->plugin_id . $this->id . '_' . $key] ) ) {
     		$text = esc_attr( woocommerce_clean( $_POST[$this->plugin_id . $this->id . '_' . $key] ) );
@@ -376,7 +410,7 @@ class woocommerce_payment_gateway {
     } // End validate_textarea_field()
     
     /**
-     * Validate Text Field.
+     * Validate Select Field.
      *
      * Make sure the data is escaped correctly, etc.
      * 
@@ -384,7 +418,7 @@ class woocommerce_payment_gateway {
      * @return $text string
      */
     function validate_select_field ( $key ) {
-    	$value = $this->settings[$key];
+    	$value = (isset($this->settings[$key])) ? $this->settings[$key] : '';
     	
     	if ( isset( $_POST[$this->plugin_id . $this->id . '_' . $key] ) && ( '' != $_POST[$this->plugin_id . $this->id . '_' . $key] ) ) {
     		$value = esc_attr( woocommerce_clean( $_POST[$this->plugin_id . $this->id . '_' . $key] ) );
@@ -392,4 +426,23 @@ class woocommerce_payment_gateway {
     	
     	return $value;
     } // End validate_select_field()
+
+    /**
+     * Validate Multiselect Field.
+     *
+     * Make sure the data is escaped correctly, etc.
+     * 
+     * @since 1.0.0
+     * @return $text string
+     */
+    function validate_multiselect_field ( $key ) {
+    	$value = (isset($this->settings[$key])) ? $this->settings[$key] : '';
+    	
+    	if ( isset( $_POST[$this->plugin_id . $this->id . '_' . $key] ) && ( '' != $_POST[$this->plugin_id . $this->id . '_' . $key] ) ) {
+    		$value = array_map('esc_attr', array_map('woocommerce_clean', (array) $_POST[$this->plugin_id . $this->id . '_' . $key] ));
+    	}
+    	
+    	return $value;
+    } // End validate_select_field()
+    
 }
\ No newline at end of file