backport app check (nagging dialog), reenable hide

index.html

@@ -45,11 +45,12 @@
     <script type="text/javascript" src="stitchcode/morphic.js?version=2021-12-14"></script>
     <script type="text/javascript" src="stitchcode/symbols.js?version=2021-12-14"></script>
     <script type="text/javascript" src="stitchcode/blocks.js?version=2021-12-14"></script>
+    <script type="text/javascript" src="stitchcode/widgets.js?version=2023-05-10"></script>
     <script type="text/javascript" src="stitchcode/threads.js?version=2022-12-05"></script>
-    <script type="text/javascript" src="stitchcode/objects.js?version=2023-02-20"></script>
+    <script type="text/javascript" src="stitchcode/objects.js?version=2023-05-10"></script>
     <script type="text/javascript" src="stitchcode/turtlecloud.js?version=2022-10-05"></script>
-    <script type="text/javascript" src="stitchcode/gui.js?version=2022-10-31"></script>
-    <script type="text/javascript" src="stitchcode/store.js?version=2022-06-14"></script>
+    <script type="text/javascript" src="stitchcode/gui.js?version=2023-05-10"></script>
+    <script type="text/javascript" src="stitchcode/store.js?version=2023-05-10"></script>
 
     <script type="text/javascript">
       var world;

stitchcode/gui.js

@@ -1,4 +1,4 @@
-VERSION="2.7.15"
+VERSION="2.7.16"
 
 // get debug mode
 url = new URL(window.location.href);
@@ -328,6 +328,8 @@ IDE_Morph.prototype.openProject = function (project) {
         true // pause generic WHEN hat blocks
     );
     this.createStageHandle();
+    this.flushBlocksCache();
+    this.refreshPalette(true);
 };
 
 
@@ -3349,8 +3351,10 @@ IDE_Morph.prototype.switchToScene = function (
     if (!scene || !scene.stage) {
         return;
     }
-    this.siblings().forEach(morph =>
-        morph.destroy()
+    this.siblings().filter(
+        morph => !morph.nag
+    ).forEach(
+        morph => morph.destroy()
     );
     this.scene.captureGlobalSettings();
     this.scene = scene;
@@ -3399,3 +3403,14 @@ StageHandleMorph.prototype.init = function (target) {
     this.noticesTransparentClick = true;
     this.setExtent(new Point(12, 50));
 };
+
+
+// backport from Snap 8
+
+IDE_Morph.prototype.inform = function (title, message) {
+    return new DialogBoxMorph().inform(
+        title,
+        localize(message),
+        this.world()
+    );
+};

stitchcode/objects.js

@@ -2693,21 +2693,22 @@ StageMorph.prototype.initRenderer = function () {
     var myself = this;
 
     console.log("set up renderer");
-
+    // console.log(this.penTrails().isRetinaEnabled)
+    
     if(!this.renderer) {
       if (Detector.webgl) {
           this.renderer = new THREE.WebGLRenderer({
               antialias: true,
               alpha: true,
               canvas: this.penTrails()
-          });
+          });  
           console.log("webgl enabled");
           this.renderer_status_msg = "webgl enabled";
 
       } else {
         console.log("webgl unavailable. fallback to canvas (SLOW!)");
         this.renderer_status_msg = "webgl unavailable. fallback to canvas (SLOW!)";
-          this.renderer = new THREE.CanvasRenderer(
+        this.renderer = new THREE.CanvasRenderer(
               {canvas: this.penTrails()});
       }
 
@@ -2721,7 +2722,7 @@ StageMorph.prototype.initRenderer = function () {
       }
 
       this.renderer.setBackgroundColor(StageMorph.prototype.backgroundColor);
-
+      
       this.renderer.changed = false;
       this.renderer.showingAxes = true;
       this.renderer.isParallelProjection = true;
@@ -3411,10 +3412,13 @@ SpriteMorph.prototype.palette = function (category) {
               ],
               () => myself.searchBlocks(),
               '^F'
-          );         
+          );    
+                    menu.addItem(
+              'hide blocks...',
+              () => new BlockVisibilityDialogMorph(myself).popUp(myself.world())
+          );     
           return menu;
       };
-      
     }
     return this.paletteCache[category];
 };

stitchcode/widgets.js

@@ -0,0 +1,30 @@
+// backport from Snap 8.0 - default to nagging dialogs
+
+DialogBoxMorph.prototype.init = function (target, action, environment) {
+    // additional properties:
+    this.is3D = false; // for "flat" design exceptions
+    this.target = target || null;
+    this.action = action || null;
+    this.environment = environment || null;
+    this.key = null; // keep track of my purpose to prevent mulitple instances
+    this.nag = true;
+
+    this.labelString = null;
+    this.label = null;
+    this.head = null;
+    this.body = null;
+    this.buttons = null;
+
+    // initialize inherited properties:
+    DialogBoxMorph.uber.init.call(this);
+
+    // override inherited properites:
+    this.isDraggable = true;
+    this.noDropShadow = true;
+    this.fullShadowSource = false;
+    this.color = PushButtonMorph.prototype.color;
+    this.createLabel();
+    this.createButtons();
+    this.setExtent(new Point(300, 150));
+    return this;
+};