dangerzone/dangerzone/gui/__init__.py
2022-11-30 12:49:14 +00:00

110 lines
3.3 KiB
Python

import functools
import logging
import os
import platform
import signal
import sys
import uuid
from typing import Dict, List, Optional
import click
import colorama
from PySide2 import QtCore, QtGui, QtWidgets
from .. import args, errors
from ..document import Document
from ..util import get_resource_path
from .logic import DangerzoneGui
from .main_window import MainWindow
class Application(QtWidgets.QApplication):
document_selected = QtCore.Signal(list)
application_activated = QtCore.Signal()
def __init__(self) -> None:
super(Application, self).__init__()
self.setQuitOnLastWindowClosed(False)
with open(get_resource_path("dangerzone.css"), "r") as f:
style = f.read()
self.setStyleSheet(style)
self.original_event = self.event
def monkeypatch_event(arg__1: QtCore.QEvent) -> bool:
event = arg__1 # oddly Qt calls internally event by "arg__1"
# In macOS, handle the file open event
if isinstance(event, QtGui.QFileOpenEvent):
# Skip file open events in dev mode
if not hasattr(sys, "dangerzone_dev"):
self.document_selected.emit([event.file()])
return True
elif event.type() == QtCore.QEvent.ApplicationActivate:
self.application_activated.emit()
return True
return self.original_event(event)
self.event = monkeypatch_event # type: ignore [assignment]
@click.command()
@click.argument(
"filenames",
required=False,
nargs=-1,
type=click.UNPROCESSED,
callback=args.validate_input_filenames,
)
@errors.handle_document_errors
def gui_main(filenames: Optional[List[str]]) -> bool:
setup_logging()
if platform.system() == "Darwin":
# Required for macOS Big Sur: https://stackoverflow.com/a/64878899
os.environ["QT_MAC_WANTS_LAYER"] = "1"
# Make sure /usr/local/bin is in the path
os.environ["PATH"] = "/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin"
# Don't show ANSI colors from stdout output, to prevent terminal
# colors from breaking the macOS GUI app
colorama.deinit()
# Create the Qt app
app = Application()
# Common objects
dangerzone = DangerzoneGui(app)
# Allow Ctrl-C to smoothly quit the program instead of throwing an exception
signal.signal(signal.SIGINT, signal.SIG_DFL)
def open_files(filenames: List[str] = []) -> None:
documents = [Document(filename) for filename in filenames]
window.content_widget.doc_selection_widget.documents_selected.emit(documents)
window = MainWindow(dangerzone)
if filenames:
open_files(filenames)
# MacOS: Open a new window, if all windows are closed
def application_activated() -> None:
window.show()
# If we get a file open event, open it
app.document_selected.connect(open_files)
# If the application is activated and all windows are closed, open a new one
app.application_activated.connect(application_activated)
# Launch the GUI
ret = app.exec_()
sys.exit(ret)
def setup_logging() -> None:
logging.basicConfig(level=logging.DEBUG, format="[%(levelname)s] %(message)s")
args.override_parser_and_check_suspicious_options(gui_main)