SolarFM/plugins/searcher/mixins/grep_search_mixin.py

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2022-10-04 03:14:18 +00:00
# Python imports
import threading, subprocess, signal, time, json, shlex
# Lib imports
from gi.repository import GLib
# Application imports
from ..widgets.grep_preview_widget import GrepPreviewWidget
# NOTE: Threads WILL NOT die with parent's destruction.
def threaded(fn):
def wrapper(*args, **kwargs):
threading.Thread(target=fn, args=args, kwargs=kwargs, daemon=False).start()
return wrapper
# NOTE: Threads WILL die with parent's destruction.
def daemon_threaded(fn):
def wrapper(*args, **kwargs):
threading.Thread(target=fn, args=args, kwargs=kwargs, daemon=True).start()
return wrapper
class GrepSearchMixin:
def _run_grep_query(self, widget=None, eve=None):
self._handle_grep_query(query=widget)
@daemon_threaded
def _handle_grep_query(self, widget=None, eve=None, query=None):
# NOTE: Freeze IPC consumption
self.pause_fifo_update = True
# NOTE: Kill the former process
if self._grep_proc:
if self._grep_proc.poll():
self._grep_proc.send_signal(signal.SIGKILL)
while self._grep_proc.poll():
pass
self._grep_proc = None
else:
self._grep_proc = None
# NOTE: Clear children from ui
GLib.idle_add(self.clear_children, self._grep_list)
while len(self._grep_list.get_children()) > 0:
...
# NOTE: Make sure ui thread redraws
time.sleep(0.5)
self.pause_fifo_update = False
# NOTE: If query create new process and do all new loop.
if query:
GLib.idle_add(self._exec_grep_query, query)
def _exec_grep_query(self, widget=None, eve=None):
query = widget.get_text()
if not query in ("", None):
target_dir = shlex.quote( self._fm_state.tab.get_current_directory() )
command = ["python", f"{self.path}/utils/search.py", "-t", "grep_search", "-d", f"{target_dir}", "-q", f"{query}"]
self._grep_proc = subprocess.Popen(command, cwd=self.path, stdin=None, stdout=None, stderr=None)
def _load_grep_ui(self, data):
if not data in ("", None) and not self.pause_fifo_update:
jdata = json.loads( data )
jkeys = jdata.keys()
for key in jkeys:
sub_keys = jdata[key].keys()
grep_result = jdata[key]
widget = GrepPreviewWidget(key, sub_keys, grep_result)
GLib.idle_add(self._grep_list.add, widget)
# self._grep_list.add(widget)