MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / includes / htmlform / fields / HTMLSelectLimitField.php

diff --git a/includes/htmlform/fields/HTMLSelectLimitField.php b/includes/htmlform/fields/HTMLSelectLimitField.php
new file mode 100644 (file)
index 0000000..45191d0
--- /dev/null
+++ b/includes/htmlform/fields/HTMLSelectLimitField.php
@@ -0,0 +1,35 @@
+<?php
+
+/**
+ * A limit dropdown, which accepts any valid number
+ */
+class HTMLSelectLimitField extends HTMLSelectField {
+       /**
+        * Basically don't do any validation. If it's a number that's fine. Also,
+        * add it to the list if it's not there already
+        *
+        * @param string $value
+        * @param array $alldata
+        * @return bool
+        */
+       public function validate( $value, $alldata ) {
+               if ( $value == '' ) {
+                       return true;
+               }
+
+               // Let folks pick an explicit limit not from our list, as long as it's a real numbr.
+               if ( !in_array( $value, $this->mParams['options'] )
+                       && $value == intval( $value )
+                       && $value > 0
+               ) {
+                       // This adds the explicitly requested limit value to the drop-down,
+                       // then makes sure it's sorted correctly so when we output the list
+                       // later, the custom option doesn't just show up last.
+                       $this->mParams['options'][$this->mParent->getLanguage()->formatNum( $value )] =
+                               intval( $value );
+                       asort( $this->mParams['options'] );
+               }
+
+               return true;
+       }
+}