def __init__(self, path, provider, parent):
self._window = gtk.Window(gtk.WINDOW_TOPLEVEL)
self.path = path
self._provider = provider
self._parent = parent
self._application = self._parent._parent
self._page_count = 0
associations_manager = self._application.associations_manager
self._mime_type = associations_manager.get_mime_type(path)
if associations_manager.is_mime_type_unknown(self._mime_type):
data = associations_manager.get_sample_data(path, provider)
self._mime_type = associations_manager.get_mime_type(data=data)
# configure window
self._window.set_title(
_('{0} - Viewer').format(os.path.basename(self.path)))
self._window.set_size_request(800, 600)
self._window.set_position(gtk.WIN_POS_CENTER_ON_PARENT)
self._window.set_resizable(True)
self._window.set_skip_taskbar_hint(False)
self._window.set_wmclass('Sunflower', 'Sunflower')
self._window.set_border_width(0)
# connect signals
self._window.connect('destroy', self._handle_destroy)
self._window.connect('key-press-event', self._handle_key_press)
# create user interface according to mime type
vbox = gtk.VBox(homogeneous=False, spacing=0)
self.status_bar = StatusBar()
self.status_bar.set_border_width(2)
self.status_bar.add_group_with_icon('mime_type', 'document-properties',
self._mime_type)
self.status_bar.show()
self._notebook = gtk.Notebook()
self._notebook.set_border_width(2)
# create page for executables
if self._mime_type in ('application/x-executable', 'application/x-sharedlib') \
and executable_exists('nm'):
# get output from command
data = ''
try:
output = subprocess.Popen(
['nm', '-al', path], stdout=subprocess.PIPE).communicate()
data = output[0]
except OSError as error:
# report error to user
raise error
# create new page
self._create_text_page(_('Executable'), data)
# create text page if needed
if associations_manager.is_mime_type_subset(self._mime_type,
'text/plain'):
# get data from the file
raw_file = self._provider.get_file_handle(self.path, FileMode.READ)
data = raw_file.read()
raw_file.close()
# create new page
self._create_text_page(_('Text'), data)
# create image page if needed
if self._mime_type.startswith('image/'):
container = gtk.ScrolledWindow()
container.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
container.set_shadow_type(gtk.SHADOW_NONE)
container.set_border_width(5)
viewport = gtk.Viewport()
image = gtk.Image()
image.set_from_file(self.path)
viewport.add(image)
container.add(viewport)
self._insert_page(_('Image'), container)
# create extensions
self._create_extensions()
# pack user interface
vbox.pack_start(self._notebook, True, True, 0)
vbox.pack_start(self.status_bar, False, False, 0)
self._window.add(vbox)
# show all widgets if there are pages present
if self._page_count > 0:
self._window.show_all()
else:
# show information and close window
dialog = gtk.MessageDialog(
self._application, gtk.DIALOG_DESTROY_WITH_PARENT,
gtk.MESSAGE_INFO, gtk.BUTTONS_OK,
_('Viewer is unable to display this file type.'))
dialog.run()
dialog.destroy()
self._window.destroy()
