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main.py
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main.py
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from __future__ import annotations
import subprocess
from time import sleep
from ulauncher.api import Extension, Result
from ulauncher.api.shared.action.ExtensionCustomAction import ExtensionCustomAction
from lib import logger, parse_int, set_clipboard, show_message
from managers import clipman, clipster, copyq, gpaste
from managers.manager_base import ClipboardManager
MAX_START_ATTEMPTS = 30
clipboard_managers: dict[str, type[ClipboardManager]] = {
"CopyQ": copyq.CopyQ,
"GPaste": gpaste.GPaste,
"Clipster": clipster.Clipster,
"Clipman": clipman.Clipman,
}
def ensure_status(manager, attempts=0):
if not manager.is_running():
logger.info("Attempting to start manager %s", manager.__name__)
if not manager.can_start() or attempts > MAX_START_ATTEMPTS:
logger.warning("Could not start manager %s (%i attempts)", manager.__name__, 0)
return False
manager.start()
sleep(0.05 * attempts)
return ensure_status(manager, attempts + 1)
is_enabled = manager.is_enabled()
if not is_enabled:
logger.warning("Clipboard manager %s is disabled", manager.name)
return is_enabled
def sorter(m: type[ClipboardManager]) -> tuple[bool, bool, bool]:
return m.can_start(), m.is_enabled(), m.is_running()
def format_entry(text_input: str, entry: str) -> Result:
entry_list = entry.strip().split("\n")
context = []
pos = 0
if text_input:
line = next(line for line in entry_list if text_input in line.lower())
pos = entry_list.index(line)
if pos > 0:
line = entry_list[pos - 1].strip()
if line:
context.append("..." + line)
context.append(entry_list[pos])
if len(entry_list) > pos + 1:
line = entry_list[pos + 1].strip()
if line:
context.append(line + "...")
return Result(
compact=True, name="\n".join(context), on_enter=ExtensionCustomAction(entry)
)
def get_manager(name: str) -> type[ClipboardManager] | None:
if name == "Auto":
return sorted(clipboard_managers.values(), key=sorter)[-1]
return clipboard_managers.get(name)
class Clipboard(Extension):
manager: type[ClipboardManager]
def __init__(self):
super().__init__()
self.set_manager(self.preferences["manager"])
def set_manager(self, manager_name):
logger.info("Loading ulauncher-clipboard manager: %s", manager_name)
self.manager = get_manager(manager_name)
if not ensure_status(self.manager):
show_message(
"ulauncher-clipboard error",
f"Could not load {manager_name}. Make sure it's installed and enabled.",
"dialog-error",
)
def on_preferences_update(self, pref_id, value, _previous_value):
if pref_id == "manager":
self.set_manager(value)
def on_input(self, input_text, _trigger_id):
max_lines = parse_int(self.preferences["max_lines"], 20)
if not ensure_status(self.manager):
status = (
f"Could not start {self.manager.__name__}. "
"Please make sure you have it on your system and that it is not disabled."
)
return [Result(name=status)]
try:
history = self.manager.get_history()
except Exception as e:
logger.error("Failed getting clipboard history")
logger.error(e)
return [Result(name="Could not load clipboard history")]
# Filter entries if there's an input_text
if input_text == "":
matches = history[:max_lines]
else:
matches = []
for entry in history:
if len(matches) == max_lines:
break
if input_text in entry.lower():
matches.append(entry)
if len(matches) > 0:
lines = 0
for entry in matches:
result = format_entry(input_text, entry)
# Limit to max lines and compensate for the margin
lines += max(1, (result.name.count("\n") + 1) * 0.85)
if max_lines >= lines:
yield result
return [
Result(
name=(
"No matches in clipboard history"
if len(input_text) > 0
else "Clipboard history is empty"
)
)
]
def on_item_enter(self, text):
copy_hook = self.preferences["copy_hook"]
# Prefer to use the clipboard managers own implementation
if getattr(self.manager, "add", None):
logger.info("Adding to clipboard using clipboard manager's method")
self.manager.add(text)
else:
logger.info("Adding to clipboard using fallback method")
set_clipboard(text)
if copy_hook:
logger.info("Running copy hook: " + copy_hook)
subprocess.Popen(["sh", "-c", copy_hook])
if __name__ == "__main__":
Clipboard().run()