Add OnAirKM.py

OnAirKM.py

@@ -0,0 +1,109 @@
+#!/usr/bin/env python3
+
+import os
+import platform
+import re
+import threading
+import time
+import webbrowser
+import rumps
+
+macos_version = int(platform.mac_ver()[0][:2])
+
+class OnAir(object):
+    def __init__(self):
+        self.app = rumps.App("OnAir", "⚪")
+        self.menuToggle = rumps.MenuItem("Turn on", callback=self.on_air)
+        self.app.menu.add(self.menuToggle)
+        self.app.menu.add(rumps.MenuItem("About OnAir…", callback=self.open_onair_url))
+        self.menubar_blinker_active = False
+        self.camera_state_updater_active = True
+
+    def run(self):
+        threading.Thread(target=self.camera_state_updater, daemon=True).start()
+        self.app.run()
+
+    def log(self, msg):
+        print("%s" % msg)
+
+    def camera_state_updater(self):  # Corrected the indentation here
+        self.log("camera_state_updater()")
+        predicate = 'subsystem == "com.apple.UVCExtension" and composedMessage contains "Post PowerLog"'
+        extraopts = ""
+        searchexpr = "guid:(.+)]"
+        onitem = "Start"
+        offitem = "Stop"
+        if macos_version == 12:
+            predicate = 'eventMessage contains "Post event kCameraStream"'
+            extraopts = "--style ndjson"
+            searchexpr = 'VDCAssistant_Device_GUID\\\\" = \\\\"(.+)\\\\";'
+            onitem = "= On;"
+            offitem = "= Off;"
+        if macos_version >= 13:
+            predicate = 'eventMessage contains "Cameras changed to"'
+            extraopts = "--style ndjson"
+            searchexpr = '"Cameras changed to (\[.*\])",'
+            onitem = "to [ControlCenter"
+            offitem = "to []"
+        log_stream = os.popen("""/usr/bin/log stream %s --predicate '%s'""" % (extraopts, predicate), "r")
+        cameras = dict()
+        while self.camera_state_updater_active:
+            item = log_stream.readline()
+            self.log("reading '%s'" % item.strip())
+            if item == "":
+                self.log("log stream died")
+                break
+            match = re.search(searchexpr, item)
+            if match is not None:
+                device = match.group(1) if macos_version < 13 else "dummy"
+                if onitem in item:
+                    cameras[device] = True
+                elif offitem in item:
+                    cameras[device] = False
+                else:
+                    self.log("Unknown activity: %s" % item)
+                self.log(cameras)
+                if any(cameras.values()):
+                    self.log("Camera %s is on" % device)
+                    self.on_air()
+                else:
+                    self.log("Camera %s is off" % device)
+                    self.off_air()
+        self.log("camera_state_updater() done")
+
+    @staticmethod
+    def open_onair_url(callback_sender=None):
+        webbrowser.open_new_tab("https://github.com/henrik242/OnAir")
+
+    def on_air(self, callback_sender=None):
+        self.log("on_air()")
+        os.system("""osascript -e 'tell application "Keyboard Maestro Engine" to do script "ON AIR MACRO UUID HERE"'""")
+        # os.system("""osascript -e 'tell application "Keyboard Maestro Engine" to do script "ON AIR MACRO NAME HERE"'""")
+        self.menubar_blinker_active = True
+        threading.Thread(target=self.menubar_blinker, daemon=True).start()
+        self.menuToggle.title = "Turn off"
+        self.menuToggle.set_callback(callback=self.off_air)
+        self.log("on_air() done")
+
+    def off_air(self, callback_sender=None):
+        self.log("off_air()")
+        os.system("""osascript -e 'tell application "Keyboard Maestro Engine" to do script "OFF AIR MACRO UUID HERE"'""")
+        # os.system("""osascript -e 'tell application "Keyboard Maestro Engine" to do script "OFF AIR MACRO NAME HERE"'""")
+        self.menubar_blinker_active = False
+        self.menuToggle.title = "Turn on"
+        self.menuToggle.set_callback(callback=self.on_air)
+        self.log("off_air() done")
+
+    def menubar_blinker(self):
+        self.log("menubar_blinker()")
+        green = True
+        while self.menubar_blinker_active:
+            self.app.title = "🟢" if green else "⚪️"
+            time.sleep(1)
+            green = not green
+        self.app.title = "⚪"
+        self.log("menubar_blinker() done")
+
+if __name__ == "__main__":
+    app = OnAir()
+    app.run()