PluginManager/PluginUninstallDialog.py

Thu, 13 Mar 2014 19:21:25 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Thu, 13 Mar 2014 19:21:25 +0100
changeset 3366
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parent 3345
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child 3484
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permissions
-rw-r--r--

Made some changes to have a bunch of dialogs with correct sizes.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2007 - 2014 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a dialog for plugin deinstallation.
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8 """
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9
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10 import sys
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11 import os
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12 import imp
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13 import shutil
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14 import glob
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15
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16 from PyQt4.QtCore import pyqtSlot, pyqtSignal
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17 from PyQt4.QtGui import QWidget, QDialog, QDialogButtonBox, QVBoxLayout
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18
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19 from E5Gui import E5MessageBox
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20 from E5Gui.E5MainWindow import E5MainWindow
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21 from E5Gui.E5Application import e5App
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22
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23 from .Ui_PluginUninstallDialog import Ui_PluginUninstallDialog
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24
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25 import Preferences
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26 import UI.PixmapCache
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27
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28
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29 class PluginUninstallWidget(QWidget, Ui_PluginUninstallDialog):
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30 """
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31 Class implementing a dialog for plugin deinstallation.
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32 """
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33 accepted = pyqtSignal()
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34
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35 def __init__(self, pluginManager, parent=None):
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36 """
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37 Constructor
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38
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39 @param pluginManager reference to the plugin manager object
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40 @param parent parent of this dialog (QWidget)
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41 """
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42 super().__init__(parent)
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43 self.setupUi(self)
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44
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45 if pluginManager is None:
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46 # started as external plugin deinstaller
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47 from .PluginManager import PluginManager
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48 self.__pluginManager = PluginManager(doLoadPlugins=False)
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49 self.__external = True
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50 else:
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51 self.__pluginManager = pluginManager
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52 self.__external = False
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53
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54 self.pluginDirectoryCombo.addItem(
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55 self.tr("User plugins directory"),
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56 self.__pluginManager.getPluginDir("user"))
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57
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58 globalDir = self.__pluginManager.getPluginDir("global")
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59 if globalDir is not None and os.access(globalDir, os.W_OK):
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60 self.pluginDirectoryCombo.addItem(
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61 self.tr("Global plugins directory"),
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62 globalDir)
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63
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64 msh = self.minimumSizeHint()
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65 self.resize(max(self.width(), msh.width()), msh.height())
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66
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67 @pyqtSlot(int)
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68 def on_pluginDirectoryCombo_currentIndexChanged(self, index):
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69 """
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70 Private slot to populate the plugin name combo upon a change of the
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71 plugin area.
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72
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73 @param index index of the selected item (integer)
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74 """
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75 pluginDirectory = self.pluginDirectoryCombo.itemData(index)
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76 pluginNames = sorted(self.__pluginManager.getPluginModules(
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77 pluginDirectory))
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78 self.pluginNameCombo.clear()
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79 for pluginName in pluginNames:
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80 fname = "{0}.py".format(os.path.join(pluginDirectory, pluginName))
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81 self.pluginNameCombo.addItem(pluginName, fname)
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82 self.buttonBox.button(QDialogButtonBox.Ok)\
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83 .setEnabled(self.pluginNameCombo.currentText() != "")
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84
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85 @pyqtSlot()
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86 def on_buttonBox_accepted(self):
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87 """
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88 Private slot to handle the accepted signal of the button box.
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89 """
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90 if self.__uninstallPlugin():
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91 self.accepted.emit()
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92
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93 def __uninstallPlugin(self):
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94 """
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95 Private slot to uninstall the selected plugin.
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96
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97 @return flag indicating success (boolean)
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98 """
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99 pluginDirectory = self.pluginDirectoryCombo\
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100 .itemData(self.pluginDirectoryCombo.currentIndex())
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101 pluginName = self.pluginNameCombo.currentText()
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102 pluginFile = self.pluginNameCombo\
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103 .itemData(self.pluginNameCombo.currentIndex())
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104
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105 if not self.__pluginManager.unloadPlugin(pluginName):
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106 E5MessageBox.critical(
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107 self,
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108 self.tr("Plugin Uninstallation"),
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109 self.tr(
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110 """<p>The plugin <b>{0}</b> could not be unloaded."""
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111 """ Aborting...</p>""").format(pluginName))
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112 return False
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113
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114 if not pluginDirectory in sys.path:
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115 sys.path.insert(2, pluginDirectory)
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116 module = imp.load_source(pluginName, pluginFile)
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117 if not hasattr(module, "packageName"):
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118 E5MessageBox.critical(
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119 self,
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120 self.tr("Plugin Uninstallation"),
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121 self.tr(
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122 """<p>The plugin <b>{0}</b> has no 'packageName'"""
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123 """ attribute. Aborting...</p>""").format(pluginName))
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124 return False
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125
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126 package = getattr(module, "packageName")
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127 if package is None:
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128 package = "None"
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129 packageDir = ""
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parents:
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130 else:
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131 packageDir = os.path.join(pluginDirectory, package)
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132 if hasattr(module, "prepareUninstall"):
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133 module.prepareUninstall()
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134 internalPackages = []
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135 if hasattr(module, "internalPackages"):
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136 # it is a comma separated string
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137 internalPackages = [p.strip() for p in
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138 module.internalPackages.split(",")]
0
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139 del module
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140
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141 # clean sys.modules
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142 self.__pluginManager.removePluginFromSysModules(
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143 pluginName, package, internalPackages)
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144
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145 try:
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146 if packageDir and os.path.exists(packageDir):
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147 shutil.rmtree(packageDir)
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148
415
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149 fnameo = "{0}o".format(pluginFile)
0
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150 if os.path.exists(fnameo):
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151 os.remove(fnameo)
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152
415
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153 fnamec = "{0}c".format(pluginFile)
0
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154 if os.path.exists(fnamec):
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155 os.remove(fnamec)
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156
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157 pluginDirCache = os.path.join(
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158 os.path.dirname(pluginFile), "__pycache__")
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159 if os.path.exists(pluginDirCache):
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160 pluginFileName = os.path.splitext(
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161 os.path.basename(pluginFile))[0]
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162 for fnameo in glob.glob(os.path.join(
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163 pluginDirCache, "{0}*.pyo".format(pluginFileName))):
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164 os.remove(fnameo)
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165 for fnamec in glob.glob(os.path.join(
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166 pluginDirCache, "{0}*.pyc".format(pluginFileName))):
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167 os.remove(fnamec)
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168
0
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169 os.remove(pluginFile)
12
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170 except OSError as err:
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171 E5MessageBox.critical(
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172 self,
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173 self.tr("Plugin Uninstallation"),
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174 self.tr(
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175 """<p>The plugin package <b>{0}</b> could not be"""
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176 """ removed. Aborting...</p>"""
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177 """<p>Reason: {1}</p>""").format(packageDir, str(err)))
0
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178 return False
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179
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180 if not self.__external:
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181 ui = e5App().getObject("UserInterface")
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182 if ui.notificationsEnabled():
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183 ui.showNotification(
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184 UI.PixmapCache.getPixmap("plugin48.png"),
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185 self.tr("Plugin Uninstallation"),
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186 self.tr(
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187 """<p>The plugin <b>{0}</b> was uninstalled"""
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188 """ successfully from {1}.</p>""")
2192
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189 .format(pluginName, pluginDirectory))
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190 return True
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191
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192 E5MessageBox.information(
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193 self,
3190
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194 self.tr("Plugin Uninstallation"),
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195 self.tr(
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196 """<p>The plugin <b>{0}</b> was uninstalled successfully"""
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197 """ from {1}.</p>""")
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diff changeset
198 .format(pluginName, pluginDirectory))
0
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199 return True
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200
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201
0
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202 class PluginUninstallDialog(QDialog):
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parents:
diff changeset
203 """
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parents:
diff changeset
204 Class for the dialog variant.
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diff changeset
205 """
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206 def __init__(self, pluginManager, parent=None):
0
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207 """
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parents:
diff changeset
208 Constructor
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209
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210 @param pluginManager reference to the plugin manager object
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211 @param parent reference to the parent widget (QWidget)
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diff changeset
212 """
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diff changeset
213 super().__init__(parent)
0
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214 self.setSizeGripEnabled(True)
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215
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diff changeset
216 self.__layout = QVBoxLayout(self)
2824
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diff changeset
217 self.__layout.setContentsMargins(0, 0, 0, 0)
0
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diff changeset
218 self.setLayout(self.__layout)
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219
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diff changeset
220 self.cw = PluginUninstallWidget(pluginManager, self)
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diff changeset
221 size = self.cw.size()
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diff changeset
222 self.__layout.addWidget(self.cw)
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diff changeset
223 self.resize(size)
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diff changeset
224 self.setWindowTitle(self.cw.windowTitle())
0
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225
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diff changeset
226 self.cw.buttonBox.accepted.connect(self.accept)
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diff changeset
227 self.cw.buttonBox.rejected.connect(self.reject)
0
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228
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229
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diff changeset
230 class PluginUninstallWindow(E5MainWindow):
0
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parents:
diff changeset
231 """
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parents:
diff changeset
232 Main window class for the standalone dialog.
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parents:
diff changeset
233 """
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234 def __init__(self, parent=None):
0
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parents:
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235 """
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parents:
diff changeset
236 Constructor
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237
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238 @param parent reference to the parent widget (QWidget)
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parents:
diff changeset
239 """
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parents: 1112
diff changeset
240 super().__init__(parent)
0
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parents:
diff changeset
241 self.cw = PluginUninstallWidget(None, self)
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parents:
diff changeset
242 size = self.cw.size()
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parents:
diff changeset
243 self.setCentralWidget(self.cw)
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diff changeset
244 self.resize(size)
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diff changeset
245 self.setWindowTitle(self.cw.windowTitle())
0
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246
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247 self.setStyle(Preferences.getUI("Style"),
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248 Preferences.getUI("StyleSheet"))
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249
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parents: 3190
diff changeset
250 self.cw.buttonBox.accepted.connect(self.close)
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diff changeset
251 self.cw.buttonBox.rejected.connect(self.close)

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