add new display_[login|central] hooks

Author: orthagh

hook.php

@@ -644,4 +644,13 @@ function plugin_example_Status($param) {
    echo "\n";
    return $param;
 }
+
+function plugin_example_display_central() {
+   echo __("Plugin example displays on central page", "example");
+}
+
+function plugin_example_display_login() {
+   echo __("Plugin example displays on login page", "example");
+}
+
 ?>

setup.php

@@ -169,6 +169,9 @@ function plugin_init_example() {
 
    // CSRF compliance : All actions must be done via POST and forms closed by Html::closeForm();
    $PLUGIN_HOOKS['csrf_compliant']['example'] = true;
+
+   $PLUGIN_HOOKS['display_central']['example'] = "plugin_example_display_central";
+   $PLUGIN_HOOKS['display_login']['example'] = "plugin_example_display_login";
 }