Add sendButton command to send remote button presses

This makes it possible to send a sequence of button presses (among the current
options) to the TV which can help automate actions that can't otherwise be
achieved with the normal API.

LGTV/__init__.py

@@ -12,6 +12,7 @@
 from .scan import LGTVScan
 from .remote import LGTVRemote
 from .auth import LGTVAuth
+from .cursor import LGTVCursor
 
 
 search_config = [
@@ -158,9 +159,10 @@ def main():
     else:
         try:
             kwargs = parseargs(args.command, args.args)
-        except Exception as e:
-            parser.print_help()
-            sys.exit(1)
+        except Exception:
+            if args.command not in {"sendButton"}:
+                parser.print_help()
+                sys.exit(1)
 
         if args.name:
             name = args.name
@@ -170,6 +172,12 @@ def main():
             print("A TV name is required. Set one with -n/--name or the setDefault command.")
             sys.exit(1)
 
+        if args.command == "sendButton":
+            cursor = LGTVCursor(name, **config[name], ssl=args.ssl)
+            cursor.connect()
+            cursor.execute(args.args)
+            return
+
         try:
             ws = LGTVRemote(name, **config[name], ssl=args.ssl)
 

LGTV/cursor.py

@@ -1,19 +1,57 @@
 # Stub for cursor support. 
 
+import inspect
+from time import sleep
+
 from .remote import LGTVRemote
 from ws4py.client.threadedclient import WebSocketClient
 
 
 class LGTVCursor(WebSocketClient):
 
     def __finalize(self, response):
+        self.remote.close()
         address = response['payload']['socketPath']
         super(LGTVCursor, self).__init__(address, exclude_headers=["Origin"])
 
-    def __init__(self, name, ip=None, mac=None, key=None, hostname=None):
-        self.remote = LGTVRemote(name, ip, mac, key, hostname)
+    def __init__(self, name, ip=None, mac=None, key=None, hostname=None, ssl=False):
+        self.remote = LGTVRemote(name, ip, mac, key, hostname, ssl)
         self.remote.connect()
-        self.remote.getCursorSocket(self.__finalize)
+        self.remote.execute("getCursorSocket", {"callback": self.__finalize})
+        self.remote.run_forever()
+
+    def _list_possible_buttons(self):
+        buttons = []
+        self_class = self.__class__.__name__
+
+        for name, method in inspect.getmembers(self, predicate=inspect.ismethod):
+            if name.startswith("_"):
+                continue
+
+            if name in {"execute"}:
+                continue
+
+            if not method.__qualname__.startswith(f"{self_class}."):
+                continue
+
+            buttons.append(name)
+
+        return buttons
+
+    def execute(self, buttons):
+        if not buttons:
+            print("Add button presses to perform. Possible options:", ", ".join(self._list_possible_buttons()))
+            return
+
+        for i, button in enumerate(buttons):
+            if not hasattr(self, button):
+                print(f"{button} is not a possible button press, skipped")
+                continue
+
+            if i != 0:
+                sleep(0.1)
+
+            getattr(self, button)()
 
     def up(self):
         self.send("type:button\nname:UP\n\n")
@@ -34,5 +72,10 @@ def back(self):
         self.send("type:button\nname:BACK\n\n")
 
     def enter(self):
-        self.remote.sendEnterKey()
-
+        self.send("type:button\nname:ENTER\n\n")
+
+    def home(self):
+        self.send("type:button\nname:HOME\n\n")
+
+    def exit(self):
+        self.send("type:button\nname:EXIT\n\n")

README.md

@@ -83,6 +83,7 @@ All devices with firmware major version 4, product name "webOSTV 2.0"
 	lgtv --name MyTV --ssl openYoutubeURL <url>
 	lgtv --name MyTV --ssl openYoutubeLegacyId <videoid>
 	lgtv --name MyTV --ssl openYoutubeLegacyURL <url>
+	lgtv --name MyTV --ssl sendButton <button>
 	lgtv --name MyTV --ssl serialise
 	lgtv --name MyTV --ssl setInput <input_id>
 	lgtv --name MyTV --ssl setSoundOutput <tv_speaker|external_optical|external_arc|external_speaker|lineout|headphone|tv_external_speaker|tv_speaker_headphone|bt_soundbar>