zeroinstall/0launch-gui/gui.py

   1 # Copyright (C) 2009, Thomas Leonard
   2 # See the README file for details, or visit http://0install.net.
   3
   4 import gobject, sys
   5
   6 from zeroinstall.support import tasks
   7 from zeroinstall.injector import handler, download
   8 import dialog
   9
  10 version = '0.38'
  11
  12 class GUIHandler(handler.Handler):
  13         dl_callbacks = None             # Download -> [ callback ]
  14         pulse = None
  15         mainwindow = None
  16
  17         def _reset_counters(self):
  18                 if not self.monitored_downloads:
  19                         self.n_completed_downloads = 0
  20                         self.total_bytes_downloaded = 0
  21                 return False
  22
  23         def abort_all_downloads(self):
  24                 for dl in self.monitored_downloads.values():
  25                         dl.abort()
  26
  27         def downloads_changed(self):
  28                 if self.monitored_downloads and self.pulse is None:
  29                         def pulse():
  30                                 self.mainwindow.update_download_status()
  31                                 return True
  32                         pulse()
  33                         self.pulse = gobject.timeout_add(200, pulse)
  34                 elif len(self.monitored_downloads) == 0:
  35                         # Delay before resetting, in case we start a new download quickly
  36                         gobject.timeout_add(500, self._reset_counters)
  37
  38                         # Stop animation
  39                         if self.pulse:
  40                                 gobject.source_remove(self.pulse)
  41                                 self.pulse = None
  42                                 self.mainwindow.update_download_status()
  43
  44         def impl_added_to_store(self, impl):
  45                 self.mainwindow.update_download_status()
  46
  47         def confirm_trust_keys(self, interface, sigs, iface_xml):
  48                 def do_confirm():
  49                         import trust_box
  50                         return trust_box.confirm_trust(interface, sigs, iface_xml, parent = self.mainwindow.window)
  51                 if self.mainwindow.systray_icon:
  52                         self.mainwindow.systray_icon.set_tooltip('Need to confirm a new GPG key')
  53                         self.mainwindow.systray_icon.set_blinking(True)
  54                         @tasks.async
  55                         def wait_and_confirm():
  56                                 # Wait for the user to click the icon, then continue
  57                                 yield self.mainwindow.systray_icon_blocker
  58                                 yield tasks.TimeoutBlocker(0.5, 'Delay')
  59                                 conf = do_confirm()
  60                                 if conf:
  61                                         yield conf
  62                         return wait_and_confirm()
  63                 else:
  64                         return do_confirm()
  65
  66         def report_error(self, ex, tb = None):
  67                 if isinstance(ex, download.DownloadAborted):
  68                         return          # No need to tell the user about this, since they caused it
  69                 self.mainwindow.report_exception(ex)