diff --git a/nur_src/v/plugins/showmorePlugin.php b/nur_src/v/plugins/showmorePlugin.php
index d50265a..b5dbb88 100644
--- a/nur_src/v/plugins/showmorePlugin.php
+++ b/nur_src/v/plugins/showmorePlugin.php
@@ -15,22 +15,40 @@ class showmorePlugin extends BasePlugin {
   /** @var string classe du panneau caché par défaut */
   const INVITE_CONTENT = "En savoir plus...";
   const PANEL_CLASS = "showmore-panel";
-  
+
+  function __construct(?array $params=null) {
+    $this->containerClass = $params["container_class"] ?? static::CONTAINER_CLASS;
+    $this->inviteClass = $params["invite_class"] ?? self::INVITE_CLASS;
+    $this->inviteContent = $params["invite_content"] ?? self::INVITE_CONTENT;
+    $this->panelClass = $params["panel_class"] ?? self::PANEL_CLASS;
+    $this->onShow = $params["on_show"] ?? null;
+  }
+
+  protected string $containerClass;
+
+  protected string $inviteClass, $inviteContent;
+
+  protected string $panelClass;
+
+  protected ?string $onShow;
+
   function startc(): array {
-    return v::sdiv(["class" => self::CONTAINER_CLASS]);
+    return v::sdiv(["class" => $this->containerClass]);
   }
   
   function invite($vs=null): array {
-    if ($vs === null) $vs = self::INVITE_CONTENT;
+    $vs ??= $this->inviteContent;
     return v::a([
-      "class" => self::INVITE_CLASS,
+      "class" => $this->inviteClass,
       "href" => "#",
       $vs,
     ]);
   }
   
   function startp(): array {
-    return v::sdiv(["class" => [self::PANEL_CLASS, "hidden"]]);
+    return v::sdiv([
+      "class" => [$this->panelClass, "hidden"],
+    ]);
   }
   
   function endp(): array {
@@ -76,7 +94,10 @@ jQuery.noConflict()(function($) {
   $(".<?=self::INVITE_CLASS?>").click(function() {
     let $this = $(this);
     $this.addClass("hidden");
-    $this.closest(".<?=self::CONTAINER_CLASS?>").find(".<?=self::PANEL_CLASS?>").removeClass("hidden");
+    let $container = $this.closest(".<?=self::CONTAINER_CLASS?>");
+    let $panel = $container.find(".<?=self::PANEL_CLASS?>");
+    $panel.removeClass("hidden");
+    <?=$this->onShow?>
     return false;
   });
 });
diff --git a/src/app/RunFile.php b/src/app/RunFile.php
index 1818213..047d021 100644
--- a/src/app/RunFile.php
+++ b/src/app/RunFile.php
@@ -107,8 +107,8 @@ class RunFile {
     }
   }
 
-  function haveWorked(int $serial, ?int &$currentSerial=null): bool {
-    $data = $this->read();
+  function haveWorked(int $serial, ?int &$currentSerial=null, ?array $data=null): bool {
+    $data ??= $this->read();
     $currentSerial = $data["serial"];
     return $serial !== $currentSerial;
   }
@@ -122,7 +122,7 @@ class RunFile {
   }
 
   function warnIfLocked(?array $data=null): bool {
-    if ($data === null) $data = $this->read();
+    $data ??= $this->read();
     if ($data["locked"]) {
       msg::warning("$data[name]: possède le verrou depuis $data[date_lock]");
       return true;
@@ -172,22 +172,22 @@ class RunFile {
   }
 
   /** tester si l'application a déjà été démarrée au moins une fois */
-  function wasStarted(): bool {
-    $data = $this->read();
+  function wasStarted(?array $data=null): bool {
+    $data ??= $this->read();
     return $data["date_start"] !== null;
   }
 
   /** tester si l'application est démarrée et non arrêtée */
-  function isStarted(?array &$data=null): bool {
-    $data = $this->read();
+  function isStarted(?array $data=null): bool {
+    $data ??= $this->read();
     return $data["date_start"] !== null && $data["date_stop"] === null;
   }
 
   /**
    * vérifier si l'application marquée comme démarrée tourne réellement
    */
-  function isRunning(?array &$data=null): bool {
-    $data = $this->read();
+  function isRunning(?array $data=null): bool {
+    $data ??= $this->read();
     if ($data["date_start"] === null) return false;
     if ($data["date_stop"] !== null) return false;
     if (!posix_kill($data["pid"], 0)) {
@@ -216,14 +216,14 @@ class RunFile {
   }
 
   /** tester si l'application est déjà été stoppée au moins une fois */
-  function wasStopped(): bool {
-    $data = $this->read();
+  function wasStopped(?array $data=null): bool {
+    $data ??= $this->read();
     return $data["date_stop"] !== null;
   }
 
   /** tester si l'application a été démarrée puis arrêtée */
-  function isStopped(?array &$data=null): bool {
-    $data = $this->read();
+  function isStopped(?array $data=null): bool {
+    $data ??= $this->read();
     return $data["date_start"] !== null && $data["date_stop"] !== null;
   }
 
@@ -250,8 +250,8 @@ class RunFile {
         return false;
       }
       $done = true;
-      if (!$updateDone) return null;
-      return ["is_done" => $done];
+      if ($updateDone) return ["is_done" => $done];
+      else return null;
     });
     return $done;
   }