zeroinstall/0launch-gui/gui.py

   1 # Copyright (C) 2008, Thomas Leonard
   2 # See the README file for details, or visit http://0install.net.
   3
   4 import gobject
   5
   6 from zeroinstall.injector import handler, download
   7 import dialog
   8
   9 version = '0.34'
  10
  11 class GUIHandler(handler.Handler):
  12         dl_callbacks = None             # Download -> [ callback ]
  13         pulse = None
  14         mainwindow = None
  15
  16         def _reset_counters(self):
  17                 if not self.monitored_downloads:
  18                         self.n_completed_downloads = 0
  19                         self.total_bytes_downloaded = 0
  20                 return False
  21
  22         def abort_all_downloads(self):
  23                 for dl in self.monitored_downloads.values():
  24                         dl.abort()
  25
  26         def downloads_changed(self):
  27                 if self.monitored_downloads and self.pulse is None:
  28                         def pulse():
  29                                 self.mainwindow.update_download_status()
  30                                 return True
  31                         pulse()
  32                         self.pulse = gobject.timeout_add(50, pulse)
  33                 elif len(self.monitored_downloads) == 0:
  34                         # Delay before resetting, in case we start a new download quickly
  35                         gobject.timeout_add(500, self._reset_counters)
  36
  37                         # Stop animation
  38                         if self.pulse:
  39                                 gobject.source_remove(self.pulse)
  40                                 self.pulse = None
  41                                 self.mainwindow.update_download_status()
  42
  43         def impl_added_to_store(self, impl):
  44                 self.mainwindow.update_download_status()
  45
  46         def confirm_trust_keys(self, interface, sigs, iface_xml):
  47                 import trust_box
  48                 return trust_box.confirm_trust(interface, sigs, iface_xml, parent = self.mainwindow.window)
  49
  50         def report_error(self, ex, tb = None):
  51                 if isinstance(ex, download.DownloadAborted):
  52                         return          # No need to tell the user about this, since they caused it
  53                 dialog.alert(self.mainwindow.window, str(ex))