diff -r c822ccc4d138 -r dd9f0bca5e2f Plugins/VcsPlugins/vcsMercurial/HgDialog.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Plugins/VcsPlugins/vcsMercurial/HgDialog.py Mon Apr 12 18:00:42 2010 +0000 @@ -0,0 +1,246 @@ +# -*- coding: utf-8 -*- + +# Copyright (c) 2010 Detlev Offenbach <detlev@die-offenbachs.de> +# + +""" +Module implementing a dialog starting a process and showing its output. +""" + +import os + +from PyQt4.QtCore import QProcess, QTimer, SIGNAL, pyqtSlot +from PyQt4.QtGui import QDialog, QDialogButtonBox, QMessageBox, QLineEdit + +from .Ui_HgDialog import Ui_HgDialog + +import Preferences + +class HgDialog(QDialog, Ui_HgDialog): + """ + Class implementing a dialog starting a process and showing its output. + + It starts a QProcess and displays a dialog that + shows the output of the process. The dialog is modal, + which causes a synchronized execution of the process. + """ + def __init__(self, text, parent = None): + """ + Constructor + + @param text text to be shown by the label (string) + @param parent parent widget (QWidget) + """ + QDialog.__init__(self, parent) + self.setupUi(self) + + self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False) + self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True) + + self.proc = None + self.username = '' + self.password = '' + + self.outputGroup.setTitle(text) + + def __finish(self): + """ + Private slot called when the process finished or the user pressed the button. + """ + if self.proc is not None and \ + self.proc.state() != QProcess.NotRunning: + self.proc.terminate() + QTimer.singleShot(2000, self.proc.kill) + self.proc.waitForFinished(3000) + + self.buttonBox.button(QDialogButtonBox.Close).setEnabled(True) + self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(False) + self.buttonBox.button(QDialogButtonBox.Close).setDefault(True) + + self.inputGroup.setEnabled(False) + self.inputGroup.hide() + + self.proc = None + + if Preferences.getVCS("AutoClose") and \ + self.normal and \ + self.errors.toPlainText() == "": + self.accept() + + if self.__updateCommand and self.normal: + # check, if we had additions or deletions + lastLine = self.resultbox.toPlainText().splitlines()[-1] + if lastLine: + adds, merges, deletes, conflicts = \ + [int(a.split()[0]) for a in lastLine.split(",")] + self.__hasAddOrDelete = adds > 0 or deletes > 0 + + def on_buttonBox_clicked(self, button): + """ + Private slot called by a button of the button box clicked. + + @param button button that was clicked (QAbstractButton) + """ + if button == self.buttonBox.button(QDialogButtonBox.Close): + self.close() + elif button == self.buttonBox.button(QDialogButtonBox.Cancel): + self.__finish() + + def __procFinished(self, exitCode, exitStatus): + """ + Private slot connected to the finished signal. + + @param exitCode exit code of the process (integer) + @param exitStatus exit status of the process (QProcess.ExitStatus) + """ + self.normal = (exitStatus == QProcess.NormalExit) and (exitCode == 0) + self.__finish() + + def startProcess(self, args, workingDir = None): + """ + Public slot used to start the process. + + @param args list of arguments for the process (list of strings) + @param workingDir working directory for the process (string) + @return flag indicating a successful start of the process + """ + self.errorGroup.hide() + self.normal = False + self.intercept = False + + self.__hasAddOrDelete = False + self.__updateCommand = args[0] == "update" + + self.proc = QProcess() + + self.resultbox.append(' '.join(args)) + self.resultbox.append('') + + self.connect(self.proc, SIGNAL('finished(int, QProcess::ExitStatus)'), + self.__procFinished) + self.connect(self.proc, SIGNAL('readyReadStandardOutput()'), + self.__readStdout) + self.connect(self.proc, SIGNAL('readyReadStandardError()'), + self.__readStderr) + + if workingDir: + self.proc.setWorkingDirectory(workingDir) + self.proc.start('hg', args) + procStarted = self.proc.waitForStarted() + if not procStarted: + self.buttonBox.setFocus() + self.inputGroup.setEnabled(False) + QMessageBox.critical(None, + self.trUtf8('Process Generation Error'), + self.trUtf8( + 'The process {0} could not be started. ' + 'Ensure, that it is in the search path.' + ).format('hg')) + else: + self.inputGroup.setEnabled(True) + self.inputGroup.show() + return procStarted + + def normalExit(self): + """ + Public method to check for a normal process termination. + + @return flag indicating normal process termination (boolean) + """ + return self.normal + + def normalExitWithoutErrors(self): + """ + Public method to check for a normal process termination without + error messages. + + @return flag indicating normal process termination (boolean) + """ + return self.normal and self.errors.toPlainText() == "" + + def __readStdout(self): + """ + Private slot to handle the readyReadStandardOutput signal. + + It reads the output of the process, formats it and inserts it into + the contents pane. + """ + if self.proc is not None: + s = str(self.proc.readAllStandardOutput(), + Preferences.getSystem("IOEncoding"), + 'replace') + self.resultbox.insertPlainText(s) + self.resultbox.ensureCursorVisible() + + def __readStderr(self): + """ + Private slot to handle the readyReadStandardError signal. + + It reads the error output of the process and inserts it into the + error pane. + """ + if self.proc is not None: + self.errorGroup.show() + s = str(self.proc.readAllStandardError(), + Preferences.getSystem("IOEncoding"), + 'replace') + self.errors.insertPlainText(s) + self.errors.ensureCursorVisible() + + def on_passwordCheckBox_toggled(self, isOn): + """ + Private slot to handle the password checkbox toggled. + + @param isOn flag indicating the status of the check box (boolean) + """ + if isOn: + self.input.setEchoMode(QLineEdit.Password) + else: + self.input.setEchoMode(QLineEdit.Normal) + + @pyqtSlot() + def on_sendButton_clicked(self): + """ + Private slot to send the input to the subversion process. + """ + input = self.input.text() + input += os.linesep + + if self.passwordCheckBox.isChecked(): + self.errors.insertPlainText(os.linesep) + self.errors.ensureCursorVisible() + else: + self.errors.insertPlainText(input) + self.errors.ensureCursorVisible() + + self.proc.write(input) + + self.passwordCheckBox.setChecked(False) + self.input.clear() + + def on_input_returnPressed(self): + """ + Private slot to handle the press of the return key in the input field. + """ + self.intercept = True + self.on_sendButton_clicked() + + def keyPressEvent(self, evt): + """ + Protected slot to handle a key press event. + + @param evt the key press event (QKeyEvent) + """ + if self.intercept: + self.intercept = False + evt.accept() + return + QDialog.keyPressEvent(self, evt) + + def hasAddOrDelete(self): + """ + Public method to check, if the last action contained an add or delete. + + @return flag indicating the presence of an add or delete (boolean) + """ + return self.__hasAddOrDelete