diff -r 4e8b98454baa -r 800c432b34c8 eric7/Tools/TRSingleApplication.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/Tools/TRSingleApplication.py Sat May 15 18:45:04 2021 +0200
@@ -0,0 +1,123 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2004 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing the single application server and client.
+"""
+
+import os
+
+from PyQt5.QtCore import pyqtSignal
+
+from Toolbox.SingleApplication import (
+ SingleApplicationClient, SingleApplicationServer
+)
+
+###########################################################################
+## define some module global stuff
+###########################################################################
+
+SAFile = "eric6_trpreviewer"
+
+# define the protocol tokens
+SALoadForm = 'LoadForm'
+SALoadTranslation = 'LoadTranslation'
+
+
+class TRSingleApplicationServer(SingleApplicationServer):
+ """
+ Class implementing the single application server embedded within the
+ Translations Previewer.
+
+ @signal loadForm(str) emitted to load a form file
+ @signal loadTranslation(str, bool) emitted to load a translation file
+ """
+ loadForm = pyqtSignal(str)
+ loadTranslation = pyqtSignal(str, bool)
+
+ def __init__(self, parent):
+ """
+ Constructor
+
+ @param parent parent widget (QWidget)
+ """
+ SingleApplicationServer.__init__(self, SAFile)
+
+ self.parent = parent
+
+ def handleCommand(self, command, arguments):
+ """
+ Public slot to handle the command sent by the client.
+
+ @param command command sent by the client
+ @type str
+ @param arguments list of command arguments
+ @type list of str
+ """
+ if command == SALoadForm:
+ self.__saLoadForm(arguments)
+
+ elif command == SALoadTranslation:
+ self.__saLoadTranslation(arguments)
+
+ def __saLoadForm(self, fnames):
+ """
+ Private method used to handle the "Load Form" command.
+
+ @param fnames filenames of the forms to be loaded (list of strings)
+ """
+ for fname in fnames:
+ self.loadForm.emit(fname)
+
+ def __saLoadTranslation(self, fnames):
+ """
+ Private method used to handle the "Load Translation" command.
+
+ @param fnames filenames of the translations to be loaded
+ (list of strings)
+ """
+ first = True
+ for fname in fnames:
+ self.loadTranslation.emit(fname, first)
+ first = False
+
+
+class TRSingleApplicationClient(SingleApplicationClient):
+ """
+ Class implementing the single application client of the Translations
+ Previewer.
+ """
+ def __init__(self):
+ """
+ Constructor
+ """
+ SingleApplicationClient.__init__(self, SAFile)
+
+ def processArgs(self, args):
+ """
+ Public method to process the command line args passed to the UI.
+
+ @param args list of files to open
+ """
+ # no args, return
+ if args is None:
+ return
+
+ uiFiles = []
+ qmFiles = []
+
+ for arg in args:
+ ext = os.path.splitext(arg)[1]
+ ext = ext.lower()
+
+ if ext == '.ui':
+ uiFiles.append(arg)
+ elif ext == '.qm':
+ qmFiles.append(arg)
+
+ self.sendCommand(SALoadForm, uiFiles)
+ self.sendCommand(SALoadTranslation, qmFiles)
+
+ self.disconnect()
