visual-lambda: using browser console on itch.io

Author: bntre

!run_pygbag.bat

@@ -16,4 +16,4 @@ xcopy workspaces\library_demo.xml %DEST%\workspaces\
 xcopy workspaces\clear.xml %DEST%\workspaces\
 
 
-python -m pygbag --app_name VisualLambda --package bntr.visuallambda --title "Visual Lambda" --template pygbag_index_html.tmpl --icon favicon.png %DEST%
+python -m pygbag --app_name VisualLambda --package bntr.visuallambda --title "Visual Lambda" --template pygbag_index_html.tmpl --icon favicon.png --archive %DEST%

config.py

@@ -11,6 +11,8 @@
 
 ALLOW_SYSTEM_CONSOLE = not IS_WEB_PLATFORM
 
+ALLOW_FILE_WRITING = not IS_WEB_PLATFORM
+
 
 #-----------------------------------------------
 # Config file

controls.txt

@@ -1,11 +1,4 @@
 
-Run:
-
-python manipulator.py
-
-
-
-
 --------------------------------------------------------
 Controls
 
@@ -79,5 +72,5 @@ Zoom                                    Wheel
 
 
 
-Save screen to bmp                      F12
+Save screen to png                      F12
 Mode of export frames                   Alt+E

localstorage.py

@@ -3,44 +3,7 @@
 
 # https://github.com/pygame-web/pygame-web.github.io/blob/main/wiki/pygbag-code/README.md
 
-# Add this to index.html:
-r"""
-    // localStorage exchange
-    function setStorageValue(name, newValue, separator = undefined) {
-        let key = "storage_" + name;
-        let value = undefined;
-        if (separator) {
-            value = window.localStorage.getItem(key);
-            if (value) {
-                value += separator + newValue;
-            } else {
-                value = newValue;
-            }
-        } else {
-            value = newValue;
-        }
-        window.localStorage.setItem(key, value);
-    }
-    
-    function addItem(expression) {
-        setStorageValue("addItem", expression, "|");
-    }
-    function clearWorkspace() {
-        setStorageValue("clearWorkspace", "1");
-    }
-    function saveWorkspace(workspaceName) {
-        setStorageValue("saveWorkspace", workspaceName);
-    }
-    function loadWorkspace(workspaceName) {
-        setStorageValue("loadWorkspace", workspaceName);
-    }
-    function help() {
-        console.log("addItem(expression) - add an item by expression, e.g. addItem('\\x. x x')");
-        console.log("clearWorkspace() - clear the workspace");
-        console.log("saveWorkspace(workspaceName) - save current workspace to localStorage, e.g. saveWorkspace('combinators3')");
-        console.log("loadWorkspace(workspaceName) - load a workspace from localStorage, e.g. loadWorkspace('combinators3')");
-    }
-"""
+# See the writing to localStorage in pygbag_index_html.tmpl
 
 
 import config

main.py

@@ -219,11 +219,11 @@ def __init__( self, caption ):
             K_v:            [ (0,           self.eventAddVariable) ],
             K_p:            [ (KMOD_ALT,    self.eventModeLazy) ],
 
-            K_e:            [ (KMOD_ALT,    self.eventExportMode) ],
+            K_e:            [ (KMOD_ALT,    config.ALLOW_FILE_WRITING and self.eventExportMode) ],
 
             K_F1:           [ (0,           self.eventViewHelp) ],
             K_F5:           [ (0,           self.eventRefreshView) ],
-            K_F12:          [ (0,           self.eventSaveScreen) ],
+            K_F12:          [ (0,           config.ALLOW_FILE_WRITING and self.eventSaveScreen) ],
 
             K_PLUS:         [ (0,           self.zoomInView) ],
             K_KP_PLUS:      [ (0,           self.zoomInView) ],
@@ -655,12 +655,13 @@ def paint( self ):
         surface = self.getSurface()
 
         # Export Frame as bitmap
-        if Enduring.exportMode:
-            filename = 'frame_%s_%05d.png' % ( strDate(), Enduring.exportModeFrame )
-            Enduring.exportModeFrame += 1
-            
-            pygame.image.save( surface, filename )
-            debug(1, 'Frame saved:', filename )
+        if config.ALLOW_FILE_WRITING:
+            if Enduring.exportMode:
+                filename = 'frame_%s_%05d.png' % ( strDate(), Enduring.exportModeFrame )
+                Enduring.exportModeFrame += 1
+                
+                pygame.image.save( surface, filename )
+                debug(1, 'Frame saved:', filename )
 
         # Draw Toolbars
         for t in self.toolbars:
@@ -1018,8 +1019,9 @@ def onLoadWorkspaceName( self, workspaceName ):
                 self.invalidate()
 
 
-    def eventSaveScreen( self ):
-        pygame.image.save( self.getSurface(), 'screen_%s.bmp' % strDate() )
+    if config.ALLOW_FILE_WRITING:
+        def eventSaveScreen( self ):
+            pygame.image.save( self.getSurface(), 'screen_%s.png' % strDate() )
 
 
     def eventRefreshView( self ):
@@ -1061,10 +1063,10 @@ def eventModeQuick( self ):
         self.invalidate()
 
 
-
-    def eventExportMode( self ):
-        Enduring.exportMode ^= True
-        debug( 1, "Export Mode:", Enduring.exportMode )
+    if config.ALLOW_FILE_WRITING:
+        def eventExportMode( self ):
+            Enduring.exportMode ^= True
+            debug( 1, "Export Mode:", Enduring.exportMode )
 
 
 

pygbag_index_html.tmpl

@@ -511,6 +511,25 @@ frameborder="1"
         console.log("saveWorkspace(workspaceName) - save current workspace to localStorage, e.g. saveWorkspace('combinators3')");
         console.log("loadWorkspace(workspaceName) - load a workspace from localStorage, e.g. loadWorkspace('combinators3')");
     }
+
+    window.addEventListener('message', event => {
+        //console.log(event);
+        if (event.origin !== "https://bntr.itch.io") return;
+        const method = event.data[0];
+        if (method === "addItem") {
+            addItem(event.data[1]);
+        } else if (method === "v") {
+            clearWorkspace();
+        } else if (method === "saveWorkspace") {
+            saveWorkspace(event.data[1])
+        } else if (method === "loadWorkspace") {
+            loadWorkspace(event.data[1]);
+        }
+    });
+    // Use on itch.io in browser console:
+    //> var w = document.getElementById("game_drop").contentWindow;
+    //> w.postMessage(['addItem','\\x.x x'], '*')
+    //> w.postMessage(['clearWorkspace'], '*')
 
     </script>