ProjectFlask/FlaskBabelExtension/PyBabelConfigDialog.py

# -*- coding: utf-8 -*-

# Copyright (c) 2020 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing a dialog to edit the flask-babel configuration.
"""

import os

from PyQt5.QtCore import pyqtSlot, Qt
from PyQt5.QtWidgets import QDialog, QDialogButtonBox

from E5Gui.E5PathPicker import E5PathPickerModes
from E5Gui.E5Application import e5App

from .Ui_PyBabelConfigDialog import Ui_PyBabelConfigDialog


class PyBabelConfigDialog(QDialog, Ui_PyBabelConfigDialog):
    """
    Class implementing a dialog to edit the flask-babel configuration.
    """
    def __init__(self, configuration, parent=None):
        """
        Constructor
        
        @param configuration current pybabel configuration
        @type dict
        @param parent reference to the parent widget
        @type QWidget
        """
        super(PyBabelConfigDialog, self).__init__(parent)
        self.setupUi(self)
        
        self.__e5project = e5App().getObject("Project")
        
        self.configFilePicker.setMode(
            E5PathPickerModes.SaveFileEnsureExtensionMode)
        self.configFilePicker.setFilters(self.tr(
            "Configuration Files (*.cfg);;"
            "All Files (*)"
        ))
        self.configFilePicker.setDefaultDirectory(
            self.__e5project.getProjectPath())
        
        self.translationsDirectoryPicker.setMode(
            E5PathPickerModes.DirectoryMode)
        self.translationsDirectoryPicker.setDefaultDirectory(
            self.__e5project.getProjectPath())
        
        self.catalogFilePicker.setMode(
            E5PathPickerModes.SaveFileEnsureExtensionMode)
        self.catalogFilePicker.setFilters(self.tr(
            "Message Catalog Files (*.pot);;"
            "All Files (*)"
        ))
        self.catalogFilePicker.setDefaultDirectory(
            self.__e5project.getProjectPath())
        
        self.configFilePicker.setFocus(Qt.OtherFocusReason)
        
        self.buttonBox.button(QDialogButtonBox.Ok).setEnabled(False)
        
        if "configFile" in configuration:
            self.configFilePicker.setText(
                self.__e5project.getAbsoluteUniversalPath(
                    configuration["configFile"]))
        if "translationsDirectory" in configuration:
            self.translationsDirectoryPicker.setText(
                self.__e5project.getAbsoluteUniversalPath(
                    configuration["translationsDirectory"]))
        if "domain" in configuration:
            self.domainEdit.setText(configuration["domain"])
        if "catalogFile" in configuration:
            self.catalogFilePicker.setText(
                self.__e5project.getAbsoluteUniversalPath(
                    configuration["catalogFile"]))
        if "markersList" in configuration:
            self.markersEdit.setText(" ".join(configuration["markersList"]))
        
        msh = self.minimumSizeHint()
        self.resize(max(self.width(), msh.width()), msh.height())
    
    def getConfiguration(self):
        """
        Public method to get the entered configuration data.
        
        @return pybabel configuration
        @rtype dict
        """
        configuration = {
            "configFile": self.__e5project.getRelativeUniversalPath(
                self.configFilePicker.text()),
            "translationsDirectory": self.__e5project.getRelativeUniversalPath(
                self.translationsDirectoryPicker.text()),
        }
        
        domain = self.domainEdit.text()
        if domain:
            configuration["domain"] = domain
        else:
            configuration["domain"] = "messages"
        
        catalogFile = self.catalogFilePicker.text()
        if not catalogFile:
            # use a default name made of translations dir and domain
            catalogFile = os.path.join(
                configuration["translationsDirectory"],
                "{0}.pot".format(configuration["domain"]))
        configuration["catalogFile"] = (
            self.__e5project.getRelativeUniversalPath(catalogFile)
        )
        
        if self.markersEdit.text():
            configuration["markersList"] = self.markersEdit.text().split()
        
        return configuration
    
    def __updateOK(self):
        """
        Private method to update the status of the OK button.
        """
        enable = (
            bool(self.configFilePicker.text()) and
            bool(self.translationsDirectoryPicker.text())
        )
        self.buttonBox.button(QDialogButtonBox.Ok).setEnabled(enable)
    
    def __updateCatalogPicker(self):
        """
        Private method to update the contents of the catalog picker.
        """
        translationsDirectory = self.translationsDirectoryPicker.text()
        domain = self.domainEdit.text()
        self.catalogFilePicker.setText(os.path.join(
            translationsDirectory, "{0}.pot".format(domain)))
    
    @pyqtSlot(str)
    def on_configFilePicker_textChanged(self, txt):
        """
        Private slot to handle a change of the configuration file name.
        
        @param txt configuration file name
        @type str
        """
        self.__updateOK()
    
    @pyqtSlot(str)
    def on_translationsDirectoryPicker_textChanged(self, txt):
        """
        Private slot to handle a change of the catalog file name.
        
        @param txt configuration file name
        @type str
        """
        self.__updateOK()
        self.__updateCatalogPicker()
    
    @pyqtSlot(str)
    def on_domainEdit_textChanged(self, txt):
        """
        Private slot to handle a change of the translations domain.
        
        @param txt entered translations domain
        @type str
        """
        self.__updateCatalogPicker()