SolarFM/plugins/vod_thumbnailer/plugin.py

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# Python imports
import os, threading, subprocess, time, inspect, hashlib
from datetime import datetime
# Gtk imports
import gi
gi.require_version('Gtk', '3.0')
gi.require_version('GdkPixbuf', '2.0')
from gi.repository import Gtk, GLib, Gio, GdkPixbuf
# Application imports
# 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 Plugin:
def __init__(self):
self.path = os.path.dirname(os.path.realpath(__file__))
self.name = "VOD Thumbnailer" # NOTE: Need to remove after establishing private bidirectional 1-1 message bus
# where self.name should not be needed for message comms
self._GLADE_FILE = f"{self.path}/re_thumbnailer.glade"
self._builder = None
self._thumbnailer_dialog = None
self._thumbnail_preview_img = None
self._file_name = None
self._file_location = None
self._file_hash = None
self._state = None
self._event_system = None
self._event_sleep_time = .5
self._event_message = None
def get_ui_element(self):
self._builder = Gtk.Builder()
self._builder.add_from_file(self._GLADE_FILE)
classes = [self]
handlers = {}
for c in classes:
methods = None
try:
methods = inspect.getmembers(c, predicate=inspect.ismethod)
handlers.update(methods)
except Exception as e:
print(repr(e))
self._builder.connect_signals(handlers)
self._thumbnailer_dialog = self._builder.get_object("thumbnailer_dialog")
self._file_name = self._builder.get_object("file_name")
self._file_location = self._builder.get_object("file_location")
self._thumbnail_preview_img = self._builder.get_object("thumbnail_preview_img")
self._file_hash = self._builder.get_object("file_hash")
button = Gtk.Button(label=self.name)
button.connect("button-release-event", self._show_thumbnailer_page)
return button
def set_fm_event_system(self, fm_event_system):
self._event_system = fm_event_system
def run(self):
self._module_event_observer()
@threaded
def _show_thumbnailer_page(self, widget=None, eve=None):
self._event_system.push_gui_event([self.name, "get_current_state", ()])
self.wait_for_fm_message()
state = self._event_message
self._event_message = None
GLib.idle_add(self._process_changes, (state))
def _process_changes(self, state):
self._state = None
if len(state.selected_files) == 1:
if state.selected_files[0].lower().endswith(state.tab.fvideos):
self._state = state
self._set_ui_data()
response = self._thumbnailer_dialog.run()
if response in [Gtk.ResponseType.CANCEL, Gtk.ResponseType.DELETE_EVENT]:
self._thumbnailer_dialog.hide()
def _regenerate_thumbnail(self, widget=None, eve=None):
print("Regenerating thumbnail...")
file = self._file_name.get_text()
dir = self._file_location.get_text()
file_hash = self._file_hash.get_text()
hash_img_pth = f"{self._state.tab.ABS_THUMBS_PTH}/{file_hash}.jpg"
try:
if os.path.isfile(hash_img_pth):
os.remove(hash_img_pth)
img_pixbuf = self._state.tab.create_icon(dir, file)
self._thumbnail_preview_img.set_from_pixbuf(img_pixbuf)
except Exception as e:
print("Couldn't regenerate thumbnail!")
def _use_selected_thumbnail(self, widget=None, eve=None):
print("_use_selected_thumbnail stub...")
def _set_ui_data(self):
uri = self._state.selected_files[0]
path = self._state.tab.get_current_directory()
parts = uri.split("/")
file_hash = hashlib.sha256(str.encode(uri)).hexdigest()
hash_img_pth = f"{self._state.tab.ABS_THUMBS_PTH}/{file_hash}.jpg"
img_pixbuf = GdkPixbuf.Pixbuf.new_from_file(hash_img_pth)
self._thumbnail_preview_img.set_from_pixbuf(img_pixbuf)
self._file_name.set_text(parts[ len(parts) - 1 ])
self._file_location.set_text(path)
self._file_hash.set_text(file_hash)
def wait_for_fm_message(self):
while not self._event_message:
pass
@daemon_threaded
def _module_event_observer(self):
while True:
time.sleep(self._event_sleep_time)
event = self._event_system.read_module_event()
if event:
try:
if event[0] == self.name:
target_id, method_target, data = self._event_system.consume_module_event()
if not method_target:
self._event_message = data
else:
method = getattr(self.__class__, f"{method_target}")
if data:
data = method(*(self, *data))
else:
method(*(self,))
except Exception as e:
print(repr(e))