Mercurial Repositories > Flask Project / file comparison
comparison: ProjectFlask/RunServerDialog.py
ProjectFlask/RunServerDialog.py
- changeset 4
- e164b9ad3819
- child 5
- 550e5ea385cb
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| 3:265c3c2914e2 | 4:e164b9ad3819 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2020 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a dialog to run the Flask server. | |
| 8 """ | |
| 9 | |
| 10 from PyQt5.QtCore import pyqtSlot, QProcess | |
| 11 from PyQt5.QtWidgets import QDialog, QDialogButtonBox, QAbstractButton | |
| 12 | |
| 13 from E5Gui import E5MessageBox | |
| 14 | |
| 15 from .Ui_RunServerDialog import Ui_RunServerDialog | |
| 16 | |
| 17 | |
| 18 class RunServerDialog(QDialog, Ui_RunServerDialog): | |
| 19 """ | |
| 20 Class implementing a dialog to run the Flask server. | |
| 21 """ | |
| 22 def __init__(self, parent=None): | |
| 23 """ | |
| 24 Constructor | |
| 25 | |
| 26 @param parent reference to the parent widget | |
| 27 @type QWidget | |
| 28 """ | |
| 29 super(RunServerDialog, self).__init__(parent) | |
| 30 self.setupUi(self) | |
| 31 | |
| 32 self.__process = None | |
| 33 | |
| 34 self.buttonBox.button(QDialogButtonBox.Close).setEnabled(True) | |
| 35 self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(False) | |
| 36 self.buttonBox.button(QDialogButtonBox.Close).setDefault(True) | |
| 37 | |
| 38 def startServer(self, command, workdir, env): | |
| 39 """ | |
| 40 Public method to start the Flask server process. | |
| 41 | |
| 42 @param command path of the flask command | |
| 43 @type str | |
| 44 @param workdir working directory for the Flask server | |
| 45 @type str | |
| 46 @param env environment for the Flask server process | |
| 47 @type QProcessEnvironment | |
| 48 @return flag indicating a successful start | |
| 49 @rtype bool | |
| 50 """ | |
| 51 self.errorsEdit.hide() | |
| 52 | |
| 53 self.__process = QProcess() | |
| 54 self.__process.readyReadStandardOutput.connect(self.__readStdOut) | |
| 55 self.__process.readyReadStandardError.connect(self.__readStdErr) | |
| 56 self.__process.finished.connect(self.__processFinished) | |
| 57 self.__process.setProcessEnvironment(env) | |
| 58 self.__process.setWorkingDirectory(workdir) | |
| 59 | |
| 60 self.__process.start(command, ["run"]) | |
| 61 ok = self.__process.waitForStarted(10000) | |
| 62 if not ok: | |
| 63 E5MessageBox.critical( | |
| 64 None, | |
| 65 self.tr("Run Flask Server"), | |
| 66 self.tr("""The Flask server process could not be started.""")) | |
| 67 else: | |
| 68 self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False) | |
| 69 self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(True) | |
| 70 self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True) | |
| 71 | |
| 72 return ok | |
| 73 | |
| 74 def closeEvent(self, evt): | |
| 75 """ | |
| 76 Private method handling a close event. | |
| 77 | |
| 78 @param evt reference to the close event | |
| 79 @type QCloseEvent | |
| 80 """ | |
| 81 # TODO: not implemented yet | |
| 82 | |
| 83 @pyqtSlot(QAbstractButton) | |
| 84 def on_buttonBox_clicked(self, button): | |
| 85 """ | |
| 86 Private slot handling button presses. | |
| 87 | |
| 88 @param button button that was pressed | |
| 89 @type QAbstractButton | |
| 90 """ | |
| 91 if button is self.buttonBox.button(QDialogButtonBox.Cancel): | |
| 92 self.__cancel() | |
| 93 elif button is self.buttonBox.button(QDialogButtonBox.Close): | |
| 94 self.close() | |
| 95 | |
| 96 @pyqtSlot() | |
| 97 def __readStdOut(self): | |
| 98 """ | |
| 99 Private slot to add the server process output to the output pane. | |
| 100 """ | |
| 101 if self.__process is not None: | |
| 102 out = str(self.__process.readAllStandardOutput(), "utf-8") | |
| 103 self.outputEdit.appendPlainText(out) | |
| 104 | |
| 105 @pyqtSlot() | |
| 106 def __readStdErr(self): | |
| 107 """ | |
| 108 Private slot to add the server process errors to the errors pane. | |
| 109 """ | |
| 110 if self.__process is not None: | |
| 111 err = str(self.__process.readAllStandardError(), "utf-8") | |
| 112 self.errorsEdit.appendPlainText(err) | |
| 113 | |
| 114 self.errorsEdit.show() | |
| 115 | |
| 116 @pyqtSlot() | |
| 117 def __processFinished(self): | |
| 118 # TODO: implement it | |
| 119 pass | |
| 120 | |
| 121 @pyqtSlot() | |
| 122 def __cancel(self): | |
| 123 """ | |
| 124 Private slot to cancel the running server. | |
| 125 """ | |
| 126 # TODO: not implemented yet |
