Merge branch 'main' into bidirectional-web-editor

Author: smj-edison

README.md

@@ -60,6 +60,9 @@ if flashing from a Mac] -- Ubuntu doesn't have a good kernel for Pi 5)
    If no `folk` user, then:
 
         sudo useradd -m folk; sudo passwd folk;
+
+   After creating `folk` user, then:
+    
         for group in adm dialout cdrom sudo audio video plugdev games users input tty render netdev lpadmin gpio i2c spi; do sudo usermod -a -G $group folk; done; groups folk
 
 1. `sudo apt update`

virtual-programs/calibrate/calibrate.folk

@@ -487,22 +487,26 @@ Wish the web server handles route "/calibrate$" with handler [list apply {{UNIT_
               });
 
               function advanceCamera() {
-                cameraFrame.src = cameraFrame.src + '0'
+                cameraFrame.src = '/camera-frame?' + Math.random()
               }
             </script>
 
             <p>Use this camera preview to debug why printed and/or projected tags aren't being recognized (maybe overexposure, maybe your camera isn't in a good position): <button id="refreshButton" onclick="advanceCamera()">Refresh Preview</button> <input type="checkbox" value="true" id="auto-refresh-checkbox" checked>
-  <label for="auto-refresh-checkbox">Automatically refresh preview (May not work well during calibration)</label> </p><br> <img src="/camera-frame?0" id="cameraFrame" style="max-width: 100%"> 
+ <label for="auto-refresh-checkbox">Automatically refresh preview</label> </p><br> <img src="/camera-frame" id="cameraFrame" style="max-width: 100%"> 
 
             <script>
                 const refreshButton = document.getElementById('refreshButton');
                 const autoRefreshCheckbox = document.getElementById('auto-refresh-checkbox');
-                setInterval(() => {
-                     if (autoRefreshCheckbox.checked) {
-                        refreshButton.click()
-                     } 
-                     console.log("checked?", autoRefreshCheckbox.checked)
-                }, 100)
+                cameraFrame.addEventListener('load', () => {
+                  if (autoRefreshCheckbox.checked) {
+                    advanceCamera();
+                  } 
+                });
+                autoRefreshCheckbox.addEventListener('change', () => {
+                  if (autoRefreshCheckbox.checked) {
+                    advanceCamera();
+                  }
+                });
             </script>
 
 

virtual-programs/camera-usb.folk

@@ -349,7 +349,11 @@ When /someone/ wishes $::thisNode uses camera /cameraPath/ with /...options/ {
         set camera [Camera::new $cameraPath $width $height $bufferCount]
 
         # TODO: report actual width and height from v4l2
-        Claim camera $cameraPath has width $width height $height
+        if {[info exists crop]} {
+            Claim camera $cameraPath has width [dict get $crop width] height [dict get $crop height]
+        } else {
+            Claim camera $cameraPath has width $width height $height
+        }
 
         puts "camera-usb: $cameraPath ($options) (tid [getTid]) booted at [clock milliseconds]"