Mercurial Repositories > eric / file comparison
comparison: Plugins/VcsPlugins/vcsMercurial/HgDialog.py
Plugins/VcsPlugins/vcsMercurial/HgDialog.py
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2010 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a dialog starting a process and showing its output. | |
| 8 """ | |
| 9 | |
| 10 import os | |
| 11 | |
| 12 from PyQt4.QtCore import QProcess, QTimer, SIGNAL, pyqtSlot | |
| 13 from PyQt4.QtGui import QDialog, QDialogButtonBox, QMessageBox, QLineEdit | |
| 14 | |
| 15 from .Ui_HgDialog import Ui_HgDialog | |
| 16 | |
| 17 import Preferences | |
| 18 | |
| 19 class HgDialog(QDialog, Ui_HgDialog): | |
| 20 """ | |
| 21 Class implementing a dialog starting a process and showing its output. | |
| 22 | |
| 23 It starts a QProcess and displays a dialog that | |
| 24 shows the output of the process. The dialog is modal, | |
| 25 which causes a synchronized execution of the process. | |
| 26 """ | |
| 27 def __init__(self, text, parent = None): | |
| 28 """ | |
| 29 Constructor | |
| 30 | |
| 31 @param text text to be shown by the label (string) | |
| 32 @param parent parent widget (QWidget) | |
| 33 """ | |
| 34 QDialog.__init__(self, parent) | |
| 35 self.setupUi(self) | |
| 36 | |
| 37 self.buttonBox.button(QDialogButtonBox.Close).setEnabled(False) | |
| 38 self.buttonBox.button(QDialogButtonBox.Cancel).setDefault(True) | |
| 39 | |
| 40 self.proc = None | |
| 41 self.username = '' | |
| 42 self.password = '' | |
| 43 | |
| 44 self.outputGroup.setTitle(text) | |
| 45 | |
| 46 def __finish(self): | |
| 47 """ | |
| 48 Private slot called when the process finished or the user pressed the button. | |
| 49 """ | |
| 50 if self.proc is not None and \ | |
| 51 self.proc.state() != QProcess.NotRunning: | |
| 52 self.proc.terminate() | |
| 53 QTimer.singleShot(2000, self.proc.kill) | |
| 54 self.proc.waitForFinished(3000) | |
| 55 | |
| 56 self.buttonBox.button(QDialogButtonBox.Close).setEnabled(True) | |
| 57 self.buttonBox.button(QDialogButtonBox.Cancel).setEnabled(False) | |
| 58 self.buttonBox.button(QDialogButtonBox.Close).setDefault(True) | |
| 59 | |
| 60 self.inputGroup.setEnabled(False) | |
| 61 self.inputGroup.hide() | |
| 62 | |
| 63 self.proc = None | |
| 64 | |
| 65 if Preferences.getVCS("AutoClose") and \ | |
| 66 self.normal and \ | |
| 67 self.errors.toPlainText() == "": | |
| 68 self.accept() | |
| 69 | |
| 70 if self.__updateCommand and self.normal: | |
| 71 # check, if we had additions or deletions | |
| 72 lastLine = self.resultbox.toPlainText().splitlines()[-1] | |
| 73 if lastLine: | |
| 74 adds, merges, deletes, conflicts = \ | |
| 75 [int(a.split()[0]) for a in lastLine.split(",")] | |
| 76 self.__hasAddOrDelete = adds > 0 or deletes > 0 | |
| 77 | |
| 78 def on_buttonBox_clicked(self, button): | |
| 79 """ | |
| 80 Private slot called by a button of the button box clicked. | |
| 81 | |
| 82 @param button button that was clicked (QAbstractButton) | |
| 83 """ | |
| 84 if button == self.buttonBox.button(QDialogButtonBox.Close): | |
| 85 self.close() | |
| 86 elif button == self.buttonBox.button(QDialogButtonBox.Cancel): | |
| 87 self.__finish() | |
| 88 | |
| 89 def __procFinished(self, exitCode, exitStatus): | |
| 90 """ | |
| 91 Private slot connected to the finished signal. | |
| 92 | |
| 93 @param exitCode exit code of the process (integer) | |
| 94 @param exitStatus exit status of the process (QProcess.ExitStatus) | |
| 95 """ | |
| 96 self.normal = (exitStatus == QProcess.NormalExit) and (exitCode == 0) | |
| 97 self.__finish() | |
| 98 | |
| 99 def startProcess(self, args, workingDir = None): | |
| 100 """ | |
| 101 Public slot used to start the process. | |
| 102 | |
| 103 @param args list of arguments for the process (list of strings) | |
| 104 @param workingDir working directory for the process (string) | |
| 105 @return flag indicating a successful start of the process | |
| 106 """ | |
| 107 self.errorGroup.hide() | |
| 108 self.normal = False | |
| 109 self.intercept = False | |
| 110 | |
| 111 self.__hasAddOrDelete = False | |
| 112 self.__updateCommand = args[0] == "update" | |
| 113 | |
| 114 self.proc = QProcess() | |
| 115 | |
| 116 self.resultbox.append(' '.join(args)) | |
| 117 self.resultbox.append('') | |
| 118 | |
| 119 self.connect(self.proc, SIGNAL('finished(int, QProcess::ExitStatus)'), | |
| 120 self.__procFinished) | |
| 121 self.connect(self.proc, SIGNAL('readyReadStandardOutput()'), | |
| 122 self.__readStdout) | |
| 123 self.connect(self.proc, SIGNAL('readyReadStandardError()'), | |
| 124 self.__readStderr) | |
| 125 | |
| 126 if workingDir: | |
| 127 self.proc.setWorkingDirectory(workingDir) | |
| 128 self.proc.start('hg', args) | |
| 129 procStarted = self.proc.waitForStarted() | |
| 130 if not procStarted: | |
| 131 self.buttonBox.setFocus() | |
| 132 self.inputGroup.setEnabled(False) | |
| 133 QMessageBox.critical(None, | |
| 134 self.trUtf8('Process Generation Error'), | |
| 135 self.trUtf8( | |
| 136 'The process {0} could not be started. ' | |
| 137 'Ensure, that it is in the search path.' | |
| 138 ).format('hg')) | |
| 139 else: | |
| 140 self.inputGroup.setEnabled(True) | |
| 141 self.inputGroup.show() | |
| 142 return procStarted | |
| 143 | |
| 144 def normalExit(self): | |
| 145 """ | |
| 146 Public method to check for a normal process termination. | |
| 147 | |
| 148 @return flag indicating normal process termination (boolean) | |
| 149 """ | |
| 150 return self.normal | |
| 151 | |
| 152 def normalExitWithoutErrors(self): | |
| 153 """ | |
| 154 Public method to check for a normal process termination without | |
| 155 error messages. | |
| 156 | |
| 157 @return flag indicating normal process termination (boolean) | |
| 158 """ | |
| 159 return self.normal and self.errors.toPlainText() == "" | |
| 160 | |
| 161 def __readStdout(self): | |
| 162 """ | |
| 163 Private slot to handle the readyReadStandardOutput signal. | |
| 164 | |
| 165 It reads the output of the process, formats it and inserts it into | |
| 166 the contents pane. | |
| 167 """ | |
| 168 if self.proc is not None: | |
| 169 s = str(self.proc.readAllStandardOutput(), | |
| 170 Preferences.getSystem("IOEncoding"), | |
| 171 'replace') | |
| 172 self.resultbox.insertPlainText(s) | |
| 173 self.resultbox.ensureCursorVisible() | |
| 174 | |
| 175 def __readStderr(self): | |
| 176 """ | |
| 177 Private slot to handle the readyReadStandardError signal. | |
| 178 | |
| 179 It reads the error output of the process and inserts it into the | |
| 180 error pane. | |
| 181 """ | |
| 182 if self.proc is not None: | |
| 183 self.errorGroup.show() | |
| 184 s = str(self.proc.readAllStandardError(), | |
| 185 Preferences.getSystem("IOEncoding"), | |
| 186 'replace') | |
| 187 self.errors.insertPlainText(s) | |
| 188 self.errors.ensureCursorVisible() | |
| 189 | |
| 190 def on_passwordCheckBox_toggled(self, isOn): | |
| 191 """ | |
| 192 Private slot to handle the password checkbox toggled. | |
| 193 | |
| 194 @param isOn flag indicating the status of the check box (boolean) | |
| 195 """ | |
| 196 if isOn: | |
| 197 self.input.setEchoMode(QLineEdit.Password) | |
| 198 else: | |
| 199 self.input.setEchoMode(QLineEdit.Normal) | |
| 200 | |
| 201 @pyqtSlot() | |
| 202 def on_sendButton_clicked(self): | |
| 203 """ | |
| 204 Private slot to send the input to the subversion process. | |
| 205 """ | |
| 206 input = self.input.text() | |
| 207 input += os.linesep | |
| 208 | |
| 209 if self.passwordCheckBox.isChecked(): | |
| 210 self.errors.insertPlainText(os.linesep) | |
| 211 self.errors.ensureCursorVisible() | |
| 212 else: | |
| 213 self.errors.insertPlainText(input) | |
| 214 self.errors.ensureCursorVisible() | |
| 215 | |
| 216 self.proc.write(input) | |
| 217 | |
| 218 self.passwordCheckBox.setChecked(False) | |
| 219 self.input.clear() | |
| 220 | |
| 221 def on_input_returnPressed(self): | |
| 222 """ | |
| 223 Private slot to handle the press of the return key in the input field. | |
| 224 """ | |
| 225 self.intercept = True | |
| 226 self.on_sendButton_clicked() | |
| 227 | |
| 228 def keyPressEvent(self, evt): | |
| 229 """ | |
| 230 Protected slot to handle a key press event. | |
| 231 | |
| 232 @param evt the key press event (QKeyEvent) | |
| 233 """ | |
| 234 if self.intercept: | |
| 235 self.intercept = False | |
| 236 evt.accept() | |
| 237 return | |
| 238 QDialog.keyPressEvent(self, evt) | |
| 239 | |
| 240 def hasAddOrDelete(self): | |
| 241 """ | |
| 242 Public method to check, if the last action contained an add or delete. | |
| 243 | |
| 244 @return flag indicating the presence of an add or delete (boolean) | |
| 245 """ | |
| 246 return self.__hasAddOrDelete |
