1 | # The GUI part of the update
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2 |
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3 | #-------------------------------------------------------------------------------
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4 |
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5 | from mlx.gui.common import *
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6 |
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7 | from mlx.update import update
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8 |
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9 | import mlx.const as const
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10 |
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11 | import threading
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12 | import os
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13 | import sys
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14 |
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15 | #-------------------------------------------------------------------------------
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16 |
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17 | class Updater(threading.Thread):
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18 | """The updater thread."""
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19 |
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20 | # The removal or renaming of one file equals to the downloading of this
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21 | # many bytes in time (for the progress calculation)
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22 | REMOVE2BYTES = 100
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23 |
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24 | _progressWindow = None
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25 |
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26 | _progressLabel = None
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27 |
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28 | _progressBar = None
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29 |
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30 | _progressOKButton = None
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31 |
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32 | _sudoDialog = None
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33 |
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34 | @staticmethod
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35 | def _createGUI(parentWindow):
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36 | """Create the GUI elements, if needed."""
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37 | if Updater._progressWindow is not None:
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38 | return
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39 |
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40 | Updater._progressWindow = window = gtk.Window()
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41 | window.set_title(WINDOW_TITLE_BASE + " Update")
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42 | window.set_transient_for(parentWindow)
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43 | #win.set_icon_from_file(os.path.join(iconDirectory, "logo.ico"))
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44 | window.set_size_request(400, -1)
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45 | window.set_resizable(False)
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46 | window.set_modal(True)
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47 | window.connect("delete-event", lambda a, b: True)
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48 | window.set_deletable(False)
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49 | window.set_position(gtk.WindowPosition.CENTER_ON_PARENT if pygobject
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50 | else gtk.WIN_POS_CENTER_ON_PARENT)
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51 |
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52 | mainAlignment = gtk.Alignment(xscale = 1.0)
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53 | mainAlignment.set_padding(padding_top = 4, padding_bottom = 10,
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54 | padding_left = 16, padding_right = 16)
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55 | window.add(mainAlignment)
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56 |
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57 | mainVBox = gtk.VBox()
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58 | mainAlignment.add(mainVBox)
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59 |
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60 | labelAlignment = gtk.Alignment(xalign = 0.0, xscale = 0.0)
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61 | Updater._progressLabel = progressLabel = gtk.Label()
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62 | labelAlignment.add(progressLabel)
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63 | mainVBox.pack_start(labelAlignment, True, True, 4)
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64 |
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65 | Updater._progressBar = progressBar = gtk.ProgressBar()
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66 | mainVBox.pack_start(progressBar, True, True, 4)
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67 |
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68 | buttonAlignment = gtk.Alignment(xalign = 0.5, xscale = 0.1)
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69 | Updater._progressOKButton = progressOKButton = gtk.Button("OK")
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70 | buttonAlignment.add(progressOKButton)
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71 | mainVBox.pack_start(buttonAlignment, True, True, 4)
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72 |
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73 | Updater._sudoDialog = sudoDialog = \
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74 | gtk.Dialog(WINDOW_TITLE_BASE + " Update",
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75 | parentWindow,
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76 | gtk.DialogFlags.MODAL if pygobject else gtk.DIALOG_MODAL,
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77 | (gtk.STOCK_CANCEL, 0,
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78 | gtk.STOCK_OK, 1))
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79 |
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80 | infoLabelAlignment = gtk.Alignment(xalign = 0.5, xscale = 0.1)
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81 | infoLabelAlignment.set_padding(padding_top = 4, padding_bottom = 10,
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82 | padding_left = 16, padding_right = 16)
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83 |
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84 | infoLabel = gtk.Label("There is an update available, but the program cannot write\n"
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85 | "its directory due to insufficient privileges.\n\n"
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86 | "Click OK, if you want to run a helper program\n"
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87 | "with administrator privileges "
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88 | "to complete the update,\n"
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89 | "Cancel otherwise.")
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90 | infoLabel.set_justify(gtk.Justification.CENTER if pygobject
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91 | else gtk.JUSTIFY_CENTER)
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92 | infoLabelAlignment.add(infoLabel)
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93 | sudoDialog.vbox.pack_start(infoLabelAlignment, True, True, 4)
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94 |
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95 | sudoDialog.set_position(gtk.WindowPosition.CENTER_ON_PARENT if pygobject
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96 | else gtk.WIN_POS_CENTER_ON_PARENT)
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97 |
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98 | def __init__(self, gui, programDirectory, updateURL, parentWindow):
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99 | """Construct the updater. If not created yet, the windows used by the
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100 | updater are also created."""
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101 | super(Updater, self).__init__()
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102 |
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103 | self._gui = gui
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104 |
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105 | self._programDirectory = programDirectory
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106 | self._updateURL = updateURL
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107 |
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108 | self._totalProgress = 0
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109 | self._waitAfterFinish = False
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110 | self._restart = False
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111 |
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112 | self._sudoReply = None
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113 | self._sudoCondition = threading.Condition()
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114 |
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115 | Updater._createGUI(parentWindow)
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116 |
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117 | def run(self):
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118 | """Execute the thread's operation."""
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119 | gobject.idle_add(self._startUpdate)
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120 | update(self._programDirectory, self._updateURL, self, fromGUI = True)
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121 | if not self._waitAfterFinish:
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122 | gobject.idle_add(self._progressWindow.hide)
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123 |
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124 | def downloadingManifest(self):
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125 | """Called when the downloading of the manifest has started."""
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126 | gobject.idle_add(self._downloadingManifest)
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127 |
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128 | def _downloadingManifest(self):
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129 | """Called when the downloading of the manifest has started."""
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130 | self._progressLabel.set_text("Downloading manifest...")
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131 | self._progressBar.set_fraction(0)
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132 |
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133 | def downloadedManifest(self):
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134 | """Called when the downloading of the manifest has finished."""
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135 | gobject.idle_add(self._downloadedManifest)
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136 |
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137 | def _downloadedManifest(self):
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138 | """Called when the downloading of the manifest has finished."""
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139 | self._progressLabel.set_text("Downloaded manifest...")
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140 | self._progressBar.set_fraction(0.05)
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141 |
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142 | def needSudo(self):
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143 | """Called when the program is interested in whether we want to run a
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144 | program with administrator rights to do the update."""
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145 | gobject.idle_add(self._needSudo)
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146 | with self._sudoCondition:
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147 | while self._sudoReply is None:
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148 | self._sudoCondition.wait(1)
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149 | return self._sudoReply
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150 |
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151 | def _needSudo(self):
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152 | """Called when the program is interested in whether we want to run a
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153 | program with administrator rights to do the update."""
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154 | self._sudoDialog.show_all()
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155 | result = self._sudoDialog.run()
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156 | self._sudoDialog.hide()
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157 | with self._sudoCondition:
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158 | self._sudoReply = result!=0
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159 | self._sudoCondition.notify()
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160 |
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161 | def setTotalSize(self, numToModifyAndNew, totalSize, numToRemove,
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162 | numToRemoveLocal):
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163 | """Called when the downloading of the files has started."""
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164 | self._numToModifyAndNew = numToModifyAndNew
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165 | self._numModifiedOrNew = 0
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166 | self._totalSize = totalSize
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167 | self._downloaded = 0
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168 | self._numToRemove = numToRemove
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169 | self._numToRemoveLocal = numToRemoveLocal
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170 | self._numRemoved = 0
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171 |
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172 | self._totalProgress = self._totalSize + \
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173 | (self._numToModifyAndNew + \
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174 | self._numToRemove + self._numToRemoveLocal) * \
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175 | Updater.REMOVE2BYTES
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176 | self._waitAfterFinish = self._totalSize > 0 or self._numToRemove > 0
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177 |
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178 | def _startDownload(self):
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179 | """Called when the download has started."""
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180 | self._progressLabel.set_text("Downloading files...")
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181 |
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182 | def setDownloaded(self, downloaded):
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183 | """Called when a certain number of bytes are downloaded."""
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184 | self._downloaded = downloaded
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185 | gobject.idle_add(self._setDownloaded, downloaded)
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186 |
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187 | def _setDownloaded(self, downloaded):
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188 | """Called when a certain number of bytes are downloaded."""
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189 | self._progressLabel.set_text("Downloaded %d of %d" % \
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190 | (downloaded, self._totalSize))
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191 | self._setProgress()
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192 |
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193 | def startRenaming(self):
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194 | """Called when the renaming of files has started."""
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195 | gobject.idle_add(self._startRenaming)
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196 |
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197 | def _startRenaming(self):
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198 | """Called when the renaming of files has started."""
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199 | self._progressLabel.set_text("Renaming downloaded files...")
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200 |
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201 | def renamed(self, path, count):
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202 | """Called when a file has been renamed."""
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203 | self._numModifiedOrNew = count
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204 | gobject.idle_add(self._renamed, path, count)
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205 |
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206 | def _renamed(self, path, count):
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207 | """Called when a file has been renamed."""
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208 | self._progressLabel.set_text("Renamed %s" % (path,))
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209 | self._setProgress()
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210 |
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211 | def startRemoving(self):
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212 | """Called when the removing of files has started."""
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213 | gobject.idle_add(self._startRemoving)
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214 |
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215 | def _startRemoving(self):
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216 | """Called when the removing of files has started."""
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217 | self._progressLabel.set_text("Removing files...")
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218 |
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219 | def removed(self, path, count):
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220 | """Called when a file has been removed."""
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221 | self._numRemoved = count
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222 | gobject.idle_add(self._removed, path, count)
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223 |
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224 | def _removed(self, path, count):
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225 | """Called when a file has been removed."""
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226 | self._progressLabel.set_text("Removed %s" % (path,))
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227 | self._setProgress()
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228 |
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229 | def writingManifest(self):
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230 | """Called when the writing of the new manifest file has started."""
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231 | gobject.idle_add(self._writingManifest)
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232 |
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233 | def _writingManifest(self):
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234 | """Called when the writing of the new manifest file has started."""
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235 | self._progressLabel.set_text("Writing the new manifest")
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236 |
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237 | def done(self):
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238 | """Called when the update has been done."""
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239 | gobject.idle_add(self._done)
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240 | self._restart = self._waitAfterFinish
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241 |
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242 | def _done(self):
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243 | """Called when the writing of the new manifest file has started."""
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244 | self._progressBar.set_fraction(1)
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245 | if self._totalProgress>0:
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246 | self._progressLabel.set_text("Finished updating. Press OK to restart the program.")
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247 | self._progressOKButton.set_sensitive(True)
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248 | else:
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249 | self._progressLabel.set_text("There was nothing to update")
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250 |
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251 | def _setProgress(self):
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252 | """Set the progress bar based on the current stage."""
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253 | if self._totalProgress>0:
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254 | progress = self._downloaded + \
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255 | (self._numModifiedOrNew + self._numRemoved) * \
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256 | Updater.REMOVE2BYTES
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257 | self._progressBar.set_fraction(0.05 + 0.94 * progress / self._totalProgress)
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258 |
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259 | def failed(self, what):
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260 | """Called when the downloading has failed."""
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261 | self._waitAfterFinish = True
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262 | gobject.idle_add(self._failed, what)
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263 |
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264 | def _failed(self, what):
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265 | """Called when the downloading has failed."""
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266 | self._progressLabel.set_text("Failed, see the debug log for details.")
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267 | self._progressBar.set_fraction(1)
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268 | self._progressOKButton.set_sensitive(True)
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269 |
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270 | def _startUpdate(self):
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271 | """Start the update.
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272 |
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273 | It resets the GUI elements."""
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274 | self._progressLabel.set_text("")
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275 | self._progressBar.set_fraction(0)
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276 | self._progressWindow.show_all()
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277 | self._progressOKButton.set_sensitive(False)
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278 | self._progressOKButton.connect("clicked", self._progressOKClicked)
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279 |
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280 | def _progressOKClicked(self, button):
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281 | """Called when the OK button on the progress window is clicked."""
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282 | self._progressWindow.hide()
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283 | if self._restart:
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284 | self._gui.restart()
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285 |
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286 | #-------------------------------------------------------------------------------
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