added infrastructure for hiding individual variables in palette

HISTORY.md

@@ -37,6 +37,9 @@
     * German
     * Chinese, thanks, Simon!
 
+### 2021-10-05
+* threads, store: added infrastructure for hiding individual variables in palette
+
 ### 2021-10-04
 * blocks: added "enter" key to key-pressed dropdown
 * updated German translation for "enter" key

snap.html

@@ -17,7 +17,7 @@
         <script src="src/symbols.js?version=2021-03-03"></script>
         <script src="src/widgets.js?version=2021-07-21"></script>
         <script src="src/blocks.js?version=2021-10-04"></script>
-        <script src="src/threads.js?version=2021-10-04"></script>
+        <script src="src/threads.js?version=2021-10-05"></script>
         <script src="src/objects.js?version=2021-10-04"></script>
         <script src="src/scenes.js?version=2021-07-21"></script>
         <script src="src/gui.js?version=2021-09-30"></script>
@@ -30,7 +30,7 @@
         <script src="src/maps.js?version=2021-06-15"></script>
         <script src="src/extensions.js?version=2021-08-03"></script>
         <script src="src/xml.js?version=2021-07-05"></script>
-        <script src="src/store.js?version=2021-08-01"></script>
+        <script src="src/store.js?version=2021-10-05"></script>
         <script src="src/locale.js?version=2021-10-04"></script>
         <script src="src/cloud.js?version=2021-02-04"></script>
         <script src="src/api.js?version=2021-07-05"></script>

src/store.js

@@ -63,7 +63,7 @@ Project*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.store = '2021-August-01';
+modules.store = '2021-October-05';
 
 // XML_Serializer ///////////////////////////////////////////////////////
 /*
@@ -946,6 +946,7 @@ SnapSerializer.prototype.loadVariables = function (varFrame, element, object) {
         value = child.children[0];
         v = new Variable();
         v.isTransient = (child.attributes.transient === 'true');
+        v.isHidden = (child.attributes.hidden === 'true');
         v.value = (v.isTransient || !value ) ? 0
                 : this.loadValue(value, object);
         varFrame.vars[child.attributes.name] = v;
@@ -1930,17 +1931,24 @@ Sound.prototype.toXML = function (serializer) {
 VariableFrame.prototype.toXML = function (serializer) {
     return Object.keys(this.vars).reduce((vars, v) => {
         var val = this.vars[v].value,
+            transient = this.vars[v].isTransient,
+            hidden = this.vars[v].isHidden,
             dta;
-        if (this.vars[v].isTransient) {
+
+        if (transient || val === undefined || val === null) {
             dta = serializer.format(
-                '<variable name="@" transient="true"/>',
-                v)
-            ;
-        } else if (val === undefined || val === null) {
-            dta = serializer.format('<variable name="@"/>', v);
+                '<variable name="@"' +
+                    (transient ? ' transient="true"' : '') +
+                    (hidden ? ' hidden="true"' : '') +
+                    '/>',
+                v
+            );
         } else {
             dta = serializer.format(
-                '<variable name="@">%</variable>',
+                '<variable name="@"' +
+                    (transient ? ' transient="true"' : '') +
+                    (hidden ? ' hidden="true"' : '') +
+                    '>%</variable>',
                 v,
                 typeof val === 'object' ?
                         (isSnapObject(val) ? ''

src/threads.js

@@ -64,7 +64,7 @@ SnapExtensions, AlignmentMorph, TextMorph, Cloud*/
 
 /*jshint esversion: 6*/
 
-modules.threads = '2021-October-04';
+modules.threads = '2021-October-05';
 
 var ThreadManager;
 var Process;
@@ -7024,18 +7024,20 @@ Context.prototype.isInCustomBlock = function () {
 
 // Variable /////////////////////////////////////////////////////////////////
 
-function Variable(value, isTransient) {
+function Variable(value, isTransient, isHidden) {
     this.value = value;
     this.isTransient = isTransient || false; // prevent value serialization
+    this.isHidden = isHidden || false; // not shown in the blocks palette
 }
 
 Variable.prototype.toString = function () {
-    return 'a ' + (this.isTransient ? 'transient ' : '') + 'Variable [' +
-        this.value + ']';
+    return 'a ' + (this.isTransient ? 'transient ' : '') +
+        (this.isHidden ? 'hidden ' : '') +
+        'Variable [' + this.value + ']';
 };
 
 Variable.prototype.copy = function () {
-    return new Variable(this.value, this.isTransient);
+    return new Variable(this.value, this.isTransient, this.isHidden);
 };
 
 // VariableFrame ///////////////////////////////////////////////////////