Add examples/avoid-ws.py

examples/avoid-ws.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+# coding=utf-8
+
+"""
+Moves windows from workspace 1 to workspace 10 unless marked "_dontmove".
+
+Listens to i3 new/move events, and tells i3 to move windows from workspace 1 to
+workspace 10 unless they have a mark that starts with "_dontmove".(It looks for
+a prefix because marks need to be unique, and we might want to mark multiple
+windows as not needing to be moved.)
+
+Tips:
+
+ - You can have marks in an i3 workspace.json file by having an array named
+   "marks" in the nodes dictionary. For example:
+
+        "marks": ["_dontmove3"],
+        "swallows": [ ...
+
+ - This script does *not* move windows on startup, so you probably want to run
+   it early on. I run it from my .i3/config before starting any apps:
+
+        exec --no-startup-id ~/src/i3ipc-python/examples/avoid-ws.py
+
+See also https://redd.it/4fitpu
+"""
+
+import i3ipc
+
+def on_window_event(i3, e):
+    w = e.container
+
+    # This is necessary to find the workspace. The container in the event is
+    # not wired up to its parents, and the root is where the workspace info is
+    # kept.
+    w = i3.get_tree().find_by_id(e.container.id)
+
+    ws = w.workspace()
+    if ws and ws.name == '1'and not any(
+            mark.startswith('_dontmove') for mark in w.marks):
+        i3.command('[con_id=%d] move window to workspace 10' % w.id)
+        i3.command('workspace 10')
+
+
+def main():
+    i3 = i3ipc.Connection()
+    i3.on("window::move", on_window_event)
+    i3.on("window::new", on_window_event)
+    i3.main()
+
+if __name__ == '__main__':
+    main()