# Copyright (C) 2009, Thomas Leonard
# See the README file for details, or visit http://0install.net.
import gtk
import sys
from logging import info
from zeroinstall import SafeException
from zeroinstall.support import tasks,pretty_size
from zeroinstall.injector import download,iface_cache
from iface_browser import InterfaceBrowser
import dialog
from zeroinstall.gtkui import gtkutils
from zeroinstall.gtkui import help_box
SHOW_PREFERENCES = 0
class MainWindow:
progress = None
progress_area = None
browser = None
window = None
cancel_download_and_run = None
policy = None
comment = None
systray_icon = None
systray_icon_blocker = None
def __init__(self, policy, widgets, download_only, select_only = False):
self.policy = policy
self.select_only = select_only
policy.watchers.append(lambda: self.window.set_response_sensitive(gtk.RESPONSE_OK, policy.solver.ready))
self.window = widgets.get_widget('main')
self.window.set_default_size(gtk.gdk.screen_width() * 2 / 5, 300)
self.progress = widgets.get_widget('progress')
self.progress_area = widgets.get_widget('progress_area')
self.comment = widgets.get_widget('comment')
widgets.get_widget('stop').connect('clicked', lambda b: policy.handler.abort_all_downloads())
self.refresh_button = widgets.get_widget('refresh')
# Tree view
self.browser = InterfaceBrowser(policy, widgets)
prefs = widgets.get_widget('preferences')
self.window.action_area.set_child_secondary(prefs, True)
# Glade won't let me add this to the template!
if select_only:
run_button = dialog.MixedButton(_("_Select"), gtk.STOCK_EXECUTE, button = gtk.ToggleButton())
elif download_only:
run_button = dialog.MixedButton(_("_Download"), gtk.STOCK_EXECUTE, button = gtk.ToggleButton())
else:
run_button = dialog.MixedButton(_("_Run"), gtk.STOCK_EXECUTE, button = gtk.ToggleButton())
self.window.add_action_widget(run_button, gtk.RESPONSE_OK)
run_button.show_all()
run_button.set_flags(gtk.CAN_DEFAULT)
self.run_button = run_button
self.window.set_default_response(gtk.RESPONSE_OK)
self.window.default_widget.grab_focus()
def response(dialog, resp):
if resp in (gtk.RESPONSE_CANCEL, gtk.RESPONSE_DELETE_EVENT):
self.window.destroy()
sys.exit(1)
elif resp == gtk.RESPONSE_OK:
if self.cancel_download_and_run:
self.cancel_download_and_run.trigger()
if run_button.get_active():
self.cancel_download_and_run = tasks.Blocker("cancel downloads")
self.download_and_run(run_button, self.cancel_download_and_run)
elif resp == gtk.RESPONSE_HELP:
gui_help.display()
elif resp == SHOW_PREFERENCES:
import preferences
preferences.show_preferences(policy)
self.window.connect('response', response)
self.window.realize() # Make busy pointer work, even with --systray
def destroy(self):
self.window.destroy()
def show(self):
self.window.show()
def set_response_sensitive(self, response, sensitive):
self.window.set_response_sensitive(response, sensitive)
@tasks.async
def download_and_run(self, run_button, cancelled):
try:
if not self.select_only:
downloaded = self.policy.download_uncached_implementations()
if downloaded:
# We need to wait until everything is downloaded...
blockers = [downloaded, cancelled]
yield blockers
tasks.check(blockers)
if cancelled.happened:
return
uncached = self.policy.get_uncached_implementations()
else:
uncached = None # (we don't care)
if uncached:
missing = '\n- '.join([_('%s %s') % (iface.get_name(), impl.get_version()) for iface, impl in uncached])
dialog.alert(self.window, _('Not all downloads succeeded; cannot run program.\n\nFailed to get:') + '\n- ' + missing)
else:
from zeroinstall.injector import selections
sels = selections.Selections(self.policy)
doc = sels.toDOM()
reply = doc.toxml('utf-8')
sys.stdout.write(('Length:%8x\n' % len(reply)) + reply)
self.window.destroy()
sys.exit(0) # Success
except SystemExit:
raise
except Exception, ex:
run_button.set_active(False)
self.report_exception(ex)
def update_download_status(self):
"""Called at regular intervals while there are downloads in progress,
and once at the end. Update the display."""
monitored_downloads = self.policy.handler.monitored_downloads
self.browser.update_download_status()
if not monitored_downloads:
self.progress_area.hide()
self.window.window.set_cursor(None)
return
if not self.progress_area.get_property('visible'):
self.progress_area.show()
self.window.window.set_cursor(gtkutils.get_busy_pointer())
any_known = False
done = total = self.policy.handler.total_bytes_downloaded # Completed downloads
n_downloads = self.policy.handler.n_completed_downloads
# Now add downloads in progress...
for x in monitored_downloads.values():
if x.status != download.download_fetching: continue
n_downloads += 1
if x.expected_size:
any_known = True
so_far = x.get_bytes_downloaded_so_far()
total += x.expected_size or max(4096, so_far) # Guess about 4K for feeds/icons
done += so_far
progress_text = '%s / %s' % (pretty_size(done), pretty_size(total))
self.progress.set_text(
ngettext('Downloading one file (%(progress)s)',
'Downloading %(number)d files (%(progress)s)', n_downloads)
% {'progress': progress_text, 'number': n_downloads})
if total == 0 or (n_downloads < 2 and not any_known):
self.progress.pulse()
else:
self.progress.set_fraction(float(done) / total)
def set_message(self, message):
import pango
self.comment.set_text(message)
attrs = pango.AttrList()
attrs.insert(pango.AttrWeight(pango.WEIGHT_BOLD, end_index = len(message)))
self.comment.set_attributes(attrs)
self.comment.show()
def use_systray_icon(self):
try:
self.systray_icon = gtk.status_icon_new_from_icon_name("zeroinstall-zero2desktop")
except Exception, ex:
info(_("No system tray support: %s"), ex)
else:
root_iface = iface_cache.iface_cache.get_interface(self.policy.root)
self.systray_icon.set_tooltip(_('Checking for updates for %s') % root_iface.get_name())
self.systray_icon.connect('activate', self.remove_systray_icon)
self.systray_icon_blocker = tasks.Blocker('Tray icon clicked')
def remove_systray_icon(self, i = None):
assert self.systray_icon, i
self.show()
self.systray_icon.set_visible(False)
self.systray_icon = None
self.systray_icon_blocker.trigger()
self.systray_icon_blocker = None
def report_exception(self, ex):
if not isinstance(ex, SafeException):
import traceback
traceback.print_exc()
if self.systray_icon:
self.systray_icon.set_blinking(True)
self.systray_icon.set_tooltip(str(ex) + '\n' + _('(click for details)'))
else:
dialog.alert(self.window, str(ex))
gui_help = help_box.HelpBox(_("Injector Help"),
(_('Overview'), '\n' +
_("""A program is made up of many different components, typically written by different \
groups of people. Each component is available in multiple versions. Zero Install is \
used when starting a program. Its job is to decide which implementation of each required \
component to use.
Zero Install starts with the program you want to run (like 'The Gimp') and chooses an \
implementation (like 'The Gimp 2.2.0'). However, this implementation \
will in turn depend on other components, such as 'GTK' (which draws the menus \
and buttons). Thus, it must choose implementations of \
each dependency (each of which may require further components, and so on).""")),
(_('List of components'), '\n' +
_("""The main window displays all these components, and the version of each chosen \
implementation. The top-most one represents the program you tried to run, and each direct \
child is a dependency. The 'Fetch' column shows the amount of data that needs to be \
downloaded, or '(cached)' if it is already on this computer.
If you are happy with the choices shown, click on the Download (or Run) button to \
download (and run) the program.""")),
(_('Choosing different versions'), '\n' +
_("""To control which implementations (versions) are chosen you can click on Preferences \
and adjust the network policy and the overall stability policy. These settings affect \
all programs run using Zero Install.
Alternatively, you can edit the policy of an individual component by clicking on the \
button at the end of its line in the table and choosing "Show Versions" from the menu. \
See that dialog's help text for more information.""") + '\n'),
(_('Reporting bugs'), '\n' +
_("""To report a bug, right-click over the component which you think contains the problem \
and choose 'Report a Bug...' from themenu.Ifyoudonsauthorcanreassignthe import
bug if necessary, or switch to using a different version of the library.""") + '\n'),
(_('The cache'), '\n' +
_("""Each version of a program that is downloaded is stored in the Zero Install cache. This \
means that it won't need to be downloaded again each time you run the program. The \
"0store manage" command can be used to view the cache.""") + '\n'),
)
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