From 4e501e00ad6185fb631d4c6851dfd5383fdc19b7 Mon Sep 17 00:00:00 2001
From: jmoenig <jens@moenig.org>
Date: Fri, 4 Oct 2013 11:08:39 +0200
Subject: Keep watchers onstage when hiding/showing them, fixes #195

---
 history.txt | 1 +
 objects.js  | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/history.txt b/history.txt
index 26d93d4..d3b210b 100755
--- a/history.txt
+++ b/history.txt
@@ -1938,3 +1938,4 @@ ______
 ------
 * Threads: Type-check the SPLIT block's input before eval'ing it
 * Objects: Prevent watcher cells from growing wider as their contents becomes taller
+* Objects: Keep watchers onstage when hiding/showing them, fixes #195
diff --git a/objects.js b/objects.js
index 72cdffa..dfdd826 100644
--- a/objects.js
+++ b/objects.js
@@ -3056,6 +3056,7 @@ SpriteMorph.prototype.toggleVariableWatcher = function (varName, isGlobal) {
         } else {
             watcher.show();
             watcher.fixLayout(); // re-hide hidden parts
+            watcher.keepWithin(stage);
         }
         return;
     }
@@ -3074,6 +3075,7 @@ SpriteMorph.prototype.toggleVariableWatcher = function (varName, isGlobal) {
     }
     stage.add(watcher);
     watcher.fixLayout();
+    watcher.keepWithin(stage);
 };
 
 SpriteMorph.prototype.showingVariableWatcher = function (varName) {
@@ -3115,6 +3117,7 @@ SpriteMorph.prototype.toggleWatcher = function (selector, label, color) {
         } else {
             watcher.show();
             watcher.fixLayout(); // re-hide hidden parts
+            watcher.keepWithin(stage);
         }
         return;
     }
@@ -3133,6 +3136,7 @@ SpriteMorph.prototype.toggleWatcher = function (selector, label, color) {
     }
     stage.add(watcher);
     watcher.fixLayout();
+    watcher.keepWithin(stage);
 };
 
 SpriteMorph.prototype.showingWatcher = function (selector) {
-- 
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