tweaks to the JS-extension handling

HISTORY.md

@@ -3,7 +3,8 @@
 ## in development:
 
 * **Notable Changes:**
-    * JS-functions are now disabled by default until switched on in the settings menu per session, or if the user accepts the when loading a project  
+    * JS-functions are now disabled by default until switched on in the settings menu per session
+    * error messages in presentation mode are now shown as pop-up messages onstage  
 * **Notable Fixes:**
     * register unsaved changes when the user edits a comment
     * fixed bignums library and and made colors library faster, thanks, Brian!
@@ -12,6 +13,10 @@
     * Polish, thanks, Witek!
     * new Hindi translation, thanks, Barthdry!
 
+### 2021-06-10
+* threads: error messages in presentation mode are now shown as pop-up messages onstage  
+* store: commented out modal prompt to enable JS when loading a project that uses it
+
 ### 2021-06-09
 * new dev version
 * Polish translation update, thanks, Witek!

snap.html

@@ -9,7 +9,7 @@
         <script src="src/symbols.js?version=2021-03-03"></script>
         <script src="src/widgets.js?version=2021-01-05"></script>
         <script src="src/blocks.js?version=2021-06-09"></script>
-        <script src="src/threads.js?version=2021-06-09"></script>
+        <script src="src/threads.js?version=2021-06-10"></script>
         <script src="src/objects.js?version=2021-06-09"></script>
         <script src="src/gui.js?version=2021-06-09"></script>
         <script src="src/paint.js?version=2020-05-17"></script>
@@ -20,7 +20,7 @@
         <script src="src/video.js?version=2019-06-27"></script>
         <script src="src/maps.js?version=2020-03-25"></script>
         <script src="src/xml.js?version=2020-04-27"></script>
-        <script src="src/store.js?version=2021-06-09"></script>
+        <script src="src/store.js?version=2021-06-10"></script>
         <script src="src/locale.js?version=2021-06-09"></script>
         <script src="src/cloud.js?version=2021-02-04"></script>
         <script src="src/api.js?version=2021-01-25"></script>

src/store.js

@@ -61,7 +61,7 @@ normalizeCanvas, contains*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.store = '2021-June-09';
+modules.store = '2021-June-10';
 
 
 // XML_Serializer ///////////////////////////////////////////////////////
@@ -1165,6 +1165,7 @@ SnapSerializer.prototype.loadBlock = function (model, isReporter, object) {
             );
         } else {
             // disable loading JavaScript functions
+            /*
             if (model.attributes.s === 'reportJSFunction' &&
                     !Process.prototype.enableJS) {
                 if (window.confirm('enable JavaScript?')) {
@@ -1173,6 +1174,7 @@ SnapSerializer.prototype.loadBlock = function (model, isReporter, object) {
                     throw new Error('JavaScript is not enabled');
                 }
             }
+            */
             block = SpriteMorph.prototype.blockForSelector(model.attributes.s);
             migration = SpriteMorph.prototype.blockMigrations[
                 model.attributes.s

src/threads.js

@@ -61,7 +61,7 @@ StageMorph, SpriteMorph, StagePrompterMorph, Note, modules, isString, copy, Map,
 isNil, WatcherMorph, List, ListWatcherMorph, alert, console, TableMorph, BLACK,
 TableFrameMorph, ColorSlotMorph, isSnapObject, newCanvas, Symbol, SVG_Costume*/
 
-modules.threads = '2021-June-09';
+modules.threads = '2021-June-10';
 
 var ThreadManager;
 var Process;
@@ -1106,19 +1106,24 @@ Process.prototype.expectReport = function () {
 // Process Exception Handling
 
 Process.prototype.handleError = function (error, element) {
-    var m = element;
+    var m = element,
+        ide = this.homeContext.receiver.parentThatIsA(IDE_Morph);
     this.stop();
     this.errorFlag = true;
     this.topBlock.addErrorHighlight();
-    if (isNil(m) || isNil(m.world())) {m = this.topBlock; }
-    m.showBubble(
-        (m === element ? '' : 'Inside: ')
-            + error.name
-            + '\n'
-            + error.message,
-        this.exportResult,
-        this.receiver
-    );
+    if (ide.isAppMode) {
+        ide.showMessage(error.name + '\n' + error.message);
+    } else {
+        if (isNil(m) || isNil(m.world())) {m = this.topBlock; }
+        m.showBubble(
+            (m === element ? '' : 'Inside: ')
+                + error.name
+                + '\n'
+                + error.message,
+            this.exportResult,
+            this.receiver
+        );
+    }
 };
 
 Process.prototype.errorObsolete = function () {
@@ -1185,9 +1190,6 @@ Process.prototype.reifyPredicate = function (topBlock, parameterNames) {
 };
 
 Process.prototype.reportJSFunction = function (parmNames, body) {
-    if (!this.enableJS) {
-        throw new Error('JavaScript is not enabled');
-    }
     return Function.apply(
         null,
         parmNames.itemsArray().concat([body])
@@ -1208,7 +1210,7 @@ Process.prototype.evaluate = function (
     }
     if (context instanceof Function) {
         if (!this.enableJS) {
-            throw new Error('JavaScript is not enabled');
+            throw new Error('JavaScript extensions for Snap!\nare turned off');
         }
         return context.apply(
             this.blockReceiver(),