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focus-last.py: Terminate threads and re-instantiate after a broken pipe #179

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focus-last.py: Terminate threads and re-instantiate after a broken pipe #179

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9fa01d3
Re-instantiate after a broken pipe
elig0n Mar 31, 2021
864a0e0
removed global declaration
elig0n Mar 31, 2021
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28 changes: 19 additions & 9 deletions examples/focus-last.py
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@

class FocusWatcher:
def __init__(self):
self.alive = True
self.i3 = i3ipc.Connection()
self.i3.on('window::focus', self.on_window_focus)
# Make a directory with permissions that restrict access to
Expand Down Expand Up @@ -52,24 +53,33 @@ def read(conn):
data = conn.recv(1024)
if data == b'switch':
with self.window_list_lock:
tree = self.i3.get_tree()
windows = set(w.id for w in tree.leaves())
for window_id in self.window_list[1:]:
if window_id not in windows:
self.window_list.remove(window_id)
else:
self.i3.command('[con_id=%s] focus' % window_id)
break
try:
tree = self.i3.get_tree()
windows = set(w.id for w in tree.leaves())
for window_id in self.window_list[1:]:
if window_id not in windows:
self.window_list.remove(window_id)
else:
self.i3.command('[con_id=%s] focus' % window_id)
break
except BrokenPipeError:
print("Caught broken pipe, restarting...")
self.alive = False
elif not data:
selector.unregister(conn)
conn.close()

selector.register(self.listening_socket, selectors.EVENT_READ, accept)

while True:
while self.alive:
for key, event in selector.select():
callback = key.data
callback(key.fileobj)

self.i3.main_quit()
focus_watcher = FocusWatcher()
focus_watcher.run()
del(self)

def run(self):
t_i3 = threading.Thread(target=self.launch_i3)
Expand Down