zeroinstall/0launch-gui/gui.py

   1 import gobject
   2
   3 from zeroinstall.injector import handler, download
   4 import dialog
   5
   6 version = '0.33'
   7
   8 class GUIHandler(handler.Handler):
   9         dl_callbacks = None             # Download -> [ callback ]
  10         pulse = None
  11         mainwindow = None
  12
  13         def _reset_counters(self):
  14                 if not self.monitored_downloads:
  15                         self.n_completed_downloads = 0
  16                         self.total_bytes_downloaded = 0
  17                 return False
  18
  19         def abort_all_downloads(self):
  20                 for dl in self.monitored_downloads.values():
  21                         dl.abort()
  22
  23         def downloads_changed(self):
  24                 if self.monitored_downloads and self.pulse is None:
  25                         def pulse():
  26                                 self.mainwindow.update_download_status()
  27                                 return True
  28                         pulse()
  29                         self.pulse = gobject.timeout_add(50, pulse)
  30                 elif len(self.monitored_downloads) == 0:
  31                         # Delay before resetting, in case we start a new download quickly
  32                         gobject.timeout_add(500, self._reset_counters)
  33
  34                         # Stop animation
  35                         if self.pulse:
  36                                 gobject.source_remove(self.pulse)
  37                                 self.pulse = None
  38                                 self.mainwindow.update_download_status()
  39
  40         def impl_added_to_store(self, impl):
  41                 self.mainwindow.update_download_status()
  42
  43         def confirm_trust_keys(self, interface, sigs, iface_xml):
  44                 import trust_box
  45                 return trust_box.confirm_trust(interface, sigs, iface_xml, parent = self.mainwindow.window)
  46
  47         def report_error(self, ex, tb = None):
  48                 if isinstance(ex, download.DownloadAborted):
  49                         return          # No need to tell the user about this, since they caused it
  50                 dialog.alert(self.mainwindow.window, str(ex))