Merge remote-tracking branch 'master'

8 files changed, 203 insertions, 95 deletions

diff --git a/doc/note/links/links.txt b/doc/note/links/links.txt
index d187788..10bd745 100644
--- a/doc/note/links/links.txt
+++ b/doc/note/links/links.txt
@@ -264,13 +264,14 @@ Links (Aka argument amplifiers)
 - [Just one message per minute](https://gitit.post.ch/projects/ISA/repos/eagle/pull-requests/375/overview?commentId=330543)
 - [Houston down readyness probe timeout](https://wikit.post.ch/x/koO0Vg)
 
-## Errorhandling is not needed ...
-- [OOM exit code 137 9 sigkill houston openshift pod](https://jira.post.ch/browse/SDCISA-13746?focusedId=1925526&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-1925526)
-
 ## Common Performance
+- [Java Exceptions performance is bad](https://www.baeldung.com/java-exceptions-performance)
 - [going fast is about doing less](https://m.youtube.com/watch?v=5rb0vvJ7NCY)
 - [CppCon Tuning Benchmarks clang CPUs Compilers" ](https://m.youtube.com/watch?v=nXaxk27zwlk)
 
+## Errorhandling is not needed ...
+- [OOM exit code 137 9 sigkill houston openshift pod](https://jira.post.ch/browse/SDCISA-13746?focusedId=1925526&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-1925526)
+
 ## Bugs are not an issue
 - [Bistr gateleen Forwarder exception](https://jira.post.ch/browse/SDCISA-11147)
 
diff --git a/doc/note/maven/maven.txt b/doc/note/maven/maven.txt
index 309fa63..10a606a 100644
--- a/doc/note/maven/maven.txt
+++ b/doc/note/maven/maven.txt
@@ -23,10 +23,15 @@ mvn deploy -DaltDeploymentRepository=artifactory-snapshots::default::https://art
 mvn deploy -Dcmake.generate.skip=true -Dcmake.compile.skip=true -DaltDeploymentRepository=artifactory-releases::default::https://artifactory.tools.pnet.ch/artifactory/libs-release-local
 
 
-true `# Deploy custom build 20240206` \
+true \
   && DEPLOPTS= \
+  && `# Deploy custom gateleen build 20240206` \
   && mvn clean install -pl '!gateleen-hook-js,!gateleen-playground' \
-  && mvn deploy -DskipTests -pl '!gateleen-hook-js,!gateleen-playground' $DEPLOPTS \
+  && mvn deploy -DskipTests -pl '!gateleen-hook-js,!gateleen-playground' ${DEPLOPTS:?} \
+  && `# Deploy custom houston build 20240216` \
+  && jenkinsbuild-by-upstream \
+  #&& mvn clean install \
+  #&& mvn deploy -DskipTests ${DEPLOPTS:?} \
   && true
 
 
diff --git a/doc/note/nginx/nginx.txt b/doc/note/nginx/nginx.txt
index d5ce9db..0550e7f 100644
--- a/doc/note/nginx/nginx.txt
+++ b/doc/note/nginx/nginx.txt
@@ -3,34 +3,44 @@
 
 [looks promising](https://stackoverflow.com/a/73297125/4415884)
 
+  # Basic setup:
+  # - Maybe change "access_log" to "/var/log/nginx/access.log".
+  # - For CLI use: Change all "/tmp/nginx" to "." (single dot, aka workdir or
+  #   other user writable dir).
+  # Public expose setup:
+  # - Adapt "listen" as commented.
+  # - set "server_name" to meaningful value.
+  #
   #daemon off;  # run in foreground (eg from cli)
   events {}
-  pid nginx.pid;
+  pid /var/run/nginx.pid;
   http {
       access_log /dev/stdout;
       # Directories nginx needs configured to start up.
-      client_body_temp_path .;
-      proxy_temp_path .;
-      fastcgi_temp_path .;
-      uwsgi_temp_path .;
-      scgi_temp_path .;
+      client_body_temp_path /tmp/nginx;
+      proxy_temp_path /tmp/nginx;
+      fastcgi_temp_path /tmp/nginx;
+      uwsgi_temp_path /tmp/nginx;
+      scgi_temp_path /tmp/nginx;
       server {
-          # For public access use "80" and "[::]:80"
+          # public access: "80" and "[::]:80"
+          # local access: "127.0.0.1:80" and "[::1]:80"
           listen 127.0.0.1:80;
           listen [::1]:80;
           server_name localhost;
-          root /srv/www
+          root /srv/www;
           location /foo {
+              #autoindex on; # directory listing
               try_files $uri $uri/ =404;
           }
           location /example {
-              autoindex on; # enable directory listing
               return 200 "Example says hi";
           }
       }
   
   }
 
+
 [tutorial](https://www.javatpoint.com/nginx-minimal-configuration)
 
 
diff --git a/doc/note/qemu/qemu-compile-itself.txt b/doc/note/qemu/qemu-compile-itself.txt
new file mode 100644
index 0000000..c274c13
--- /dev/null
+++ b/doc/note/qemu/qemu-compile-itself.txt
@@ -0,0 +1,21 @@
+
+#
+# Compile qemu bullshit-free for windoof.
+#
+
+true \
+ && QEMU_URL="https://gitlab.com/qemu-project/qemu/-/archive/v8.2.1/qemu-v8.2.1.tar.gz" \
+ && WORKDIR=/home/${USER:?}/work \
+ && CACHEDIR=/var/tmp \
+ && QEMU_TGZ="${QEMU_URL_TODOCUTIT:?}" \
+ && apt install -y --no-install-recommends curl \
+ && curl -D- "${QEMU_URL:?}" -o "${CACHEDIR:?}/${QEMU_TGZ:?}" \
+ && cd "${WORKDIR:?}" \
+ && tar xf "${CACHEDIR:?}/${QEMU_TGZ:?}" \
+ && mkdir build \
+ && cd build \
+ && ../configure \
+ && make \
+ && true
+
+
diff --git a/doc/note/qemu/qemu.txt b/doc/note/qemu/qemu.txt
index 1862858..4dd7f0c 100644
--- a/doc/note/qemu/qemu.txt
+++ b/doc/note/qemu/qemu.txt
@@ -34,7 +34,16 @@ Windoof:
   qemu-img convert -O qcow2 input.qcow output.qcow2
 
 
+## Shrink snapshot layer
+
+  qemu-img convert -O qcow2 snapLayer.qcow2 tmpFullClone.qcow2
+  qemu-img create -f qcow2 -b tmpFullClone.qcow2 diff.qcow2
+  qemu-img rebase -b base.qcow2 tmpDiff.qcow2
+  mv tmpDiff.qcow2 snapLayer.qcow2
+
+
 ## Example Params (Usage: CopyPaste, then delege what is not needed)
+# TODO use '-nodefaults'.
 qemu-system-x86_64 \
     -accel kvm:whpx:hax:tcg -m size=2G -smp cores=$(nproc) \
     -monitor stdio \
diff --git a/doc/note/qemu/setup-dockerVM.txt b/doc/note/qemu/setup-dockerVM.txt
new file mode 100644
index 0000000..b3e7e67
--- /dev/null
+++ b/doc/note/qemu/setup-dockerVM.txt
@@ -0,0 +1,73 @@
+
+#
+# Use qemu to host dockerimages.
+#
+# [Execute Docker Containers as QEMU MicroVMs](https://mergeboard.com/blog/2-qemu-microvm-docker/)
+#
+
+true \
+  && LINUX_URL=https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.7.4.tar.xz \
+  && SUDO=sudo \
+  && CACHEDIR=/var/tmp \
+  && WORKDIR=/home/$USER/work \
+  && LINUX_TXZ=$(basename "${LINUX_URL:?}") \
+  && true \
+  && $SUDO apt install -y --no-install-recommends make gcc bc flex bison libc-dev libelf-dev libssl-dev \
+  && true \
+  && cd "${CACHEDIR:?}" \
+  && curl -L "${LINUX_URL:?}" -O \
+  && cd "${WORKDIR:?}" \
+  && tar xf "${CACHEDIR:?}/${LINUX_TXZ:?}" \
+  && cd linux* \
+  && base64 -d <<EOF | gunzip > .config &&
+H4sIAFBoz2UAA4VZS3MctxG++1eo7EtySCjSoopOlQ4YALMD7eBBALMPplKoSKZkVUmiLVKp5N/n
+A2Z2F5jB0jppv+4BGv3u5k8v/vn47f2//vLb09Pvj/+4uPhy/+3j/buHf3/79e/vH75cfPj0+f7x
+4t3nh48Xf9x/+f63L5/ef3v4z5eLX+8/vH/4+uHTx7/+8NMLqlUrVqHXlPQbbp3QKpDB6xefHl98
+fXh68Xj/9MPE4/ZuIwx9878DYLQTuyBvBz5woMfDBsd70VROIAMT/vS90qG7O/3sxKoLlrvghYQk
+J0LjWDBWU+5cIJT685Sw+flE9MStnSfelVBgvCf72UGJsKtgQkdOPSgv1OpE6zUuH9rgOtH6N1eX
+xycNkoSG9ETRkf+olJICIVoy9D5wRZqes4qyJJc0u7Hp14GurB7MCaOtw5GKbQXz3Qm2PiTG4GjH
+WcY+okYwtwBby/kdtwu8G1bc902GG5jXLw9gfCMoX8BgL7V6EILbdgE2JsNwjQ0quyi9JjnnTA02
+GrTUFKQJQglvs+fj9OjDcPS+BN8KH0i/JXsXtCoFSEZqWW5IqqUhPjR2XYuRnjRJl71wPnTEMq5y
+E8BZW9EXruRk9pTdzeuwuyJG0PzKiPKd54pBAaYnvtVWVm7v9lDrRjhtw2rgLtO6IZZshK0gwRmh
+EP5rV6HFSKz6v7LJEd5cXt3kolsOy3geIB8UpNdchUZrH4S9dfMHScrzJxxpUlBEtGa88sD0nbOl
+viCIYPPTr3u+4X0tB0kWQwuBR+3e+Py7GQkP92LDQ7M/RGvluBjWeUZjyF9jUrh8ebzS0i4erO0+
+OkDDZ/J3nK5DI7SDb1k7GC9yN1zzHacBXlPkWIuw11LcQTziaqoy3d4J+Do8W6zUm5f/vXyZ/h0z
+GF8Rug+bKSIClwMcq7jDDc7A52qOJhpuFSkFhR2i69+GmHQr8CHlrfQmhT98GMmQl5yC9Txx9ISx
+PB8J5XmfyBlGfr6aBB8lOYoevXfAy+8SpfKCdTJE5vNvB2lwacOz5CA1G/qcaQSie1OOGkDYgjSo
+BTyV1eUxztJjye0X1wYnVjUM7kWuL69q+c7zlRW+kgp9Z7X3Zd5JBUUygDwGvMuVHWnbpswWXvgk
+KdtEqxUBJx2D8x55qmHNW/EnHPIW1XZM8oyTJNif8a338MOKdRuhWumRSlzWrkwR2Glv+mFVwy3+
+t8n8a+1k1g4g5BxewJVPVdGQFX+eGiSUJVzu4T2H8ghkP2Gt1cq7LcmqwJ3ROvMHBEsMjVkvo3hh
+H7rOfw9K7LIs01qZytkMckODJq4XdD8jSLGyYzIo2CEAypqgmRSiEEOYgGgEB3ElevCakOqDXX5h
+4Nw+tkKuoI3lZOQgeY9zpCGCGp3rGBSjzPx3YB1dgrE4LVFLbAnKdFUFelZ2I6STYXNZA6/y8Ik6
+DEyQVcWTPUUPpdEw1uLuSGwErYbKkWGLbmCrNXueq8P/zsgg2XWRj4TZvJ6MiZrG2xoFD2v1jKBR
+3WRyosBI8ZhEdqJWZEfS0CBASx0DXtrmCD5nHTBlpiju4avXod/6Qam8FpxonSS0CMNZ1QCy1XYd
+K3BqoBA20pTdE/eo50UcNFYwZIwKRbXROAoJhq7rKPKMPUdynD5DRY+kipySE6PsUOMz1PSyyrPC
+DrmXeHQ9KOLWoyt9lqn+vDhiFYE4YTDEqyKkgAtTiT/gc12OqCcWQw2a1bec+jNEt1foEHb7OVmR
+c19I4jAJW8L4GQa8XBJzVhgmbEUctEirvOUZ/aRQ53zMixBPmi0x2schObuB0Wyu2zgdS0imwthD
+YfxdEqTpl/NfvMFYoasE2hPnxGwWe5vvAtJwhvgm8tSMHFPDFqqBdV2t/8bpv5Q+iN+T7Fk9TJ4e
+Ot6b3B8KOKQK8+PF47tPXy9+e3j6/fP3jz8edcU3Xpo2e/cBQWuG6Sh7NrwZhtSzdiq2Yb3WZqFf
+EPMZ14nyVzwPcVaEacIRC6tykIwomnn0aPDeLEWJRPG0VNM4sOfLkSFr5jc8r7aTqGOtP7V0vsMU
+wH21qGx7Uuu7hTKDD20bu65o0rIORhrUWR1oJmrR0m1gu23SkEaWR9fHZluXacoxfl9zHriZwIR0
+c3X9sph7TjDMhupG0QuxVLpw0/PnHITJzJIRMTYP6IExN9eoNk7ZGLjrLNGBmmEZn4sLoZFxOqxA
+i8Aw3oTL65sbhKjOE7DRW0SE5a40ebeV1XEqeoKEkFvMHzETox8WJvetiR4nu5YIG4cYy+v0tPhB
+L52Php1glmwLSQQLK66gm3rrE+nklee0O0826A3OUlHT16I+qUQycq61+2fIAr+eoe/hV2VGK+j8
+bs3Pfy38ebnXXDlEgT8zZUWWtGJxuq1HbuLATMLtGQkG16AbM0bbWrPGMPXMU0vMR4cVxgSRYceE
+M8XmLu2cmBWbYv17yJOYkXW+b5hwKXN/zsDjdLsUx5MydY7LBT9glEDF3YVsi2xJ9iHf+VehXQLT
+KpzQfklCBzaUU3miMN7kQ+jbhl3NMXw8raKKPUtLlPai3S+RuKqLq3AUM+TJ2dLhdtCezH6m7lWo
+dVKAbceQO9oZ5RzFcWTcEqugsoq9MTHbuFDP1RJ38mFNdR7iCUNY9AxDchb5ZVUdS2pFndMiOudF
+v0VcV0PCjnhvK3h/96qK6toZdxXwzvl8net88UZ0Hrk4Ch3XtPV68+P3pw83x3bCxL2P87H5QJxD
+z6vcqUajx/0G3+evW3jSAWkrXIc55DwlTfWZFyGeoxM5PVjKK5/FP+uoYXeeMs7TxBL5DA+iPlaI
+ZzjSQtTyW3iMDxvSD/xUDJNmNKb5rOEaIU4roOO3YrNAqaX+8iUTbTC0x5C4YCDpr1ALuPCTgyS2
+gXPCOeoU6otOdiJ121oXIVYq7vd5ypRxsSFaQWdLVreH10g0jRiX0t8YJvfJb6dhfF2W3+xtXPTk
+O6UY2+MUl7W0e0VknMzLPORiMUdTKXG7LDpgsEXzpcUgMs5s6JDIsjRKbG/nH7WLY9axleyLNmxa
+BYJa05aHBuLUmA9HOAeSMIKEVVulWzqEaZPW98f59vqXbK0OjnRotfC150lxkT89zQwVcQe1RXeK
+xqZFdHAYI2VciPZ/TosyDcUdAAA=
+EOF
+true \
+  && make olddefconfig \
+  && make -j$(nproc) \
+  && echo "[WARN ] TODO steps from here on are UNTESTED" && sleep 3 \
+  && ls -Ahl arch/*/boot/bzImage \
+  && true
+
+
diff --git a/doc/note/qemu/setup-windoof.txt b/doc/note/qemu/setup-windoof.txt
index 4428ba3..5df2cac 100644
--- a/doc/note/qemu/setup-windoof.txt
+++ b/doc/note/qemu/setup-windoof.txt
@@ -32,7 +32,7 @@ trashcan or downloaded installers:
 
   SDelete.exe -nobanner -z C:
 
-Shutdown guest, then compact disc.
+Shutdown win guest, then compact disc.
 
   qemu-img convert -O qcow2 input.qcow output.qcow2
 
diff --git a/src/main/firefox/gaga-plugin/main.js b/src/main/firefox/gaga-plugin/main.js
index 2a5bbae..4447719 100644
--- a/src/main/firefox/gaga-plugin/main.js
+++ b/src/main/firefox/gaga-plugin/main.js
@@ -1,15 +1,10 @@
 /*
- * For how to install see:
- *
- * "https://git.hiddenalpha.ch/UnspecifiedGarbage.git/tree/doc/note/firefox/firefox.txt"
+ * [How to install](UnspecifiedGarbage/doc/note/firefox/firefox.txt)
  */
 ;(function(){ try{
 
     var NDEBUG = false;
     var STATUS_INIT = 1;
-    var STATUS_RUNNING = 2;
-    var STATUS_DONE = 3;
-    var STATUS_OBSOLETE = 4;
     var NOOP = function(){};
     var LOGERR = console.error.bind(console);
     var N = null;
@@ -19,11 +14,10 @@
     function main(){
         var app = Object.seal({
             ui: {},
-            status: Object.seal({
-                checklistBtn: STATUS_INIT,
-                developmentBtn: STATUS_INIT,
-            }),
             lastClickEpochMs: 0,
+            wantChecklistExpanded: false,
+            wantDevelopmentExpanaded: false,
+            wantBigTemplateExpanded: false,
         });
         if( NDEBUG ){
             setTimeout = window.setTimeout;
@@ -32,14 +26,16 @@
         }else{ /* fix broken tooling */
             setTimeout = setTimeoutWithCatch.bind(0, app);
             logErrors = logErrorsImpl.bind(N, app);
-            LOGDBG = console.debug.bind(console);
+            LOGDBG = console.debug.bind(console, "[gaga-plugin]");
         }
         document.addEventListener("DOMContentLoaded", logErrors.bind(N, onDOMContentLoaded, app));
+        scheduleNextStateCheck(app);
+        LOGDBG("gaga-plugin initialized");
     }
 
 
     function onDOMContentLoaded( app ){
-        cleanupClutter(app);
+        LOGDBG("onDOMContentLoaded()");
         attachDomObserver(app);
     }
 
@@ -50,83 +46,58 @@
     }
 
 
-    function onDomHasChangedSomehow( app, changes, mutationObserver ){
-        var nowEpochMs = Date.now();
-        if( (app.lastClickEpochMs + 2000) > nowEpochMs ){
-            LOGDBG("ignore, likely triggered by user.");
-            return; }
-        var needsReEval = false;
-        for( var change of changes ){
-            if( change.target.nodeName != "BUTTON" ) continue;
-            var isAriaExpanded = (change.attributeName == "aria-expanded");
-            var isChildAdded = (change.addedNodes.length > 0);
-            var isChildRemoved = (change.removedNodes.length > 0);
-            var isChildAddedOrRemoved = isChildAdded || isChildRemoved;
-            if( !isAriaExpanded && !isChildAddedOrRemoved ) continue;
-            if( isAriaExpanded ){
-                LOGDBG("Suspicious, isExpanded: ", change.target);
-                needsReEval = true; break;
-            }
-            if( !isChildAddedOrRemoved ) continue;
-            var isBloatyChecklistBtnStillThere = document.body.contains(getBloatyChecklistBtn(app));
-            if( !isBloatyChecklistBtnStillThere ){
-                LOGDBG("Suspicious, btn lost");
-                needsReEval = true; break;
-            }
-            var isBloatyDevelopmentBtnStillThere = document.body.contains(getBloatyDevelopmentBtn(app));
-            if( !isBloatyDevelopmentBtnStillThere ){
-                LOGDBG("Suspicious, btn lost");
-                needsReEval = true; break;
-            }
-        }
-        if( needsReEval ){
-            LOGDBG("Change detected! Eval again");
-            app.ui.bloatyChecklistBtn = null;
-            app.ui.bloatyDevelopmentBtn = null;
-            setTimeout(cleanupClutter, 42, app);
+    function scheduleNextStateCheck( app ){
+        //LOGDBG("scheduleNextStateCheck()");
+        if( app.stateCheckTimer ){
+            LOGDBG("Why is stateCheckTimer not zero?", app.stateCheckTimer);
         }
+        app.stateCheckTimer = setTimeout(function(){
+            app.stateCheckTimer = null;
+            scheduleNextStateCheck(app);
+            performStateCheck(app);
+        }, 42);
     }
 
 
-    function cleanupClutter( app ){
-        if( app.bloatyChecklistDone != STATUS_RUNNING ){
-            app.bloatyChecklistDone = STATUS_OBSOLETE
-            setTimeout(hideBloatyButton, 0, app, "checklistBtn");
-        }
-        if( app.bloatyDevelopmentDone != STATUS_RUNNING ){
-            app.bloatyDevelopmentDone = STATUS_OBSOLETE;
-            setTimeout(hideBloatyButton, 0, app, "developmentBtn");
-        }
-        if( app.bloatyDevelopmentDone != STATUS_RUNNING ){
-            app.bloatyDevelopmentDone = STATUS_OBSOLETE;
-            setTimeout(hideBloatyButton, 0, app, "bigTemplateBtn");
+    function performStateCheck( app ){
+        var buttons = [ "checklistBtn", "developmentBtn", "bigTemplateBtn" ];
+        var wantKey = [ "wantChecklistExpanded", "wantDevelopmentExpanaded", "wantBigTemplateExpanded" ];
+        for( var i = 0 ; i < buttons.length ; ++i ){
+            var btnKey = buttons[i];
+            var btnElem = getBloatyButton(app, btnKey);
+            if( !btnElem ) continue;
+            var isExpanded = isAriaBtnExpanded(app, btnElem)
+            var wantExpanded = app[wantKey[i]];
+            //LOGDBG(btnKey +" expanded is", isExpanded);
+            if( isExpanded && !wantExpanded ){
+                collapseAriaBtn(app, btnElem);
+            }
         }
     }
 
 
-    function setLastClickTimeToNow( app ){ app.lastClickEpochMs = Date.now(); }
+    function onDomHasChangedSomehow( app, changes, mutationObserver ){
+        var nowEpochMs = Date.now();
+        LOGDBG("DOM Change detected!");
+        /*refresh dom refs so check will work on correct elems*/
+        Object.keys(app.ui).forEach(function( key ){
+            app.ui[key] = null;
+        });
+    }
 
 
-    function hideBloatyButton( app, btnKey ){
-        if( app.status[btnKey] == STATUS_DONE ){
-            LOGDBG(btnKey +" now hidden");
-            return; }
-        app.status[btnKey] == STATUS_RUNNING;
-        var btn = getBloatyButton(app, btnKey);
-        do{
-            if( !btn ){ LOGDBG(btnKey +" not found. DOM maybe not yet ready?"); break; }
-            var isExpanded = isAriaBtnExpanded(app, btn);
-            if( isExpanded === true ){
-                LOGDBG(btnKey +".click()");
-                btn.click();
-            }else if( isExpanded === false ){
-                app.status[btnKey] = STATUS_DONE;
-            }else{
-                throw Error("Neither true nor false "+ typeof(isExpanded) +" "+ isExpanded);
-            }
-        }while(0);
-        /* try later */
-        setTimeout(hideBloatyButton, 16, app, btnKey);
+    function onBloatyChecklistBtnMousedown( app ){
+        app.wantChecklistExpanded = !app.wantChecklistExpanded;
+    }
+
+
+    function onBloatyDevelopmentBtnMousedown( app ){
+        app.wantDevelopmentExpanaded = !app.wantDevelopmentExpanaded;
+    }
+
+
+    function onBloatyBigTemplateBtnMousedown( app ){
+        app.wantBigTemplateExpanded = !app.wantBigTemplateExpanded;
     }
 
 
@@ -135,19 +106,22 @@
         }else if( btnKey == "checklistBtn" ){
             var selector = "button[aria-label=Checklists]";
             var uiKey = "bloatyChecklistBtn";
+            var onMousedown = onBloatyChecklistBtnMousedown;
         }else if( btnKey == "developmentBtn" ){
             var selector = "button[aria-label=Development]";
             var uiKey = "bloatyDevelopmentBtn";
+            var onMousedown = onBloatyDevelopmentBtnMousedown;
         }else if(  btnKey == "bigTemplateBtn" ){
             var selector = "button[aria-label=BigTemplate]";
             var uiKey = "bloatyBigTemplateBtn";
+            var onMousedown = onBloatyBigTemplateBtnMousedown;
         }else{
             throw Error(btnKey);
         }
         if( !app.ui[uiKey] ){
             var btn = fetchUiRefOrNull(app, document, selector);
             if( btn ){
-                btn.addEventListener("mousedown", logErrors.bind(N, setLastClickTimeToNow, app));
+                btn.addEventListener("mousedown", logErrors.bind(N, onMousedown, app));
                 app.ui[uiKey] = btn;
             }
         }
@@ -155,6 +129,21 @@
     }
 
 
+    function collapseAriaBtn( app, btnElem ){
+        do{
+            var isExpanded = isAriaBtnExpanded(app, btnElem);
+            if( isExpanded === true ){
+                LOGDBG("click()");
+                btnElem.click();
+            }else if( isExpanded === false ){
+                break;
+            }else{
+                throw Error("Neither true nor false "+ typeof(isExpanded) +" "+ isExpanded);
+            }
+        }while(0);
+    }
+
+
     function isAriaBtnExpanded( app, btnElem ){
         var value = btnElem.getAttribute("aria-expanded");
         if( value === "true" ){