def list_devices(filter_type=None):
""" List all know devices.
Args:
filter_type: a single (or a tuple of) EmcDevType
Returns:
A filtered and sorted list of EmcDevice instances
"""
li = []
for key, device in _devices.items():
if isinstance(filter_type, int):
if device.type != filter_type:
continue
elif isinstance(filter_type, tuple):
if device.type not in filter_type:
continue
if device.type == EmcDevType.SYSTEM:
if device.mount_point == '/' and \
not ini.get_bool('storage', 'show_root'):
continue
if device.mount_point == os.getenv('HOME') and \
not ini.get_bool('storage', 'show_home'):
continue
li.append(device)
li.sort(key=attrgetter('type', 'sort_key', 'label'))
return li
def __init__(self):
super().__init__(EmcMainLoop.instance()) # mainloop is the gui parent
# setup default ini values
ini.set_default('general', 'theme', 'blackmirror')
ini.set_default('general', 'fps', 30)
ini.set_default('general', 'scale', 1.0)
ini.set_default('general', 'fullscreen', False)
ini.set_default('general', 'hide_mouse', False)
ini.set_default('general', 'time_format', '%H:%M')
ini.set_default('general', 'date_format', '%A %d %B')
ini.set_default('general', 'keyb_layouts', 'en_abc symbols')
# public members
self._theme_name = ini.get('general', 'theme')
# protected memebrs
self._boot_in_fullscreen = ini.get_bool('general', 'fullscreen')
# private members
self._key_down_func = None
self._mouse_hide_timer = EmcTimer(3.0,
self._mouse_hide_timer_cb,
parent=self)
# listen for input events
input_events.listener_add('EmcGuiBase', self._input_events_cb)
def page_add(self, url, title, styles, populate_cb, *args, **kwargs):
"""
When you create a page you need to give at least the url, the title
and the populate callback. Every other arguments will be passed back
in the callback. style can be None to use the default page style,
usually the plain list.
Args:
url: A unique string id for the page
title: Readable text for the user
styles: A tuple with all the style that the page can show.
Available styles: 'List', 'PosterGrid', 'CoverGrid'
If set to None it default to the default style given at
the Browser instance creation.
The first item is the default one.
populate_cb: Function to call when the page need to be populated.
Signature: func(browser, url, *args, **kwargs)
"""
# choose the style of the new page
if styles is None:
styles = (self.default_style, )
if _memorydb and _memorydb.id_exists(url):
style = _memorydb.get_data(url)
else:
style = self._search_style_in_parent()
if not style:
style = styles[0]
if ini.get_bool('general', 'ignore_views_restrictions') is False:
if style not in styles:
style = styles[0]
# get the correct view instance
view = self._create_or_get_view(style) # TODO REMOVE ME ??
# append the new page in the pages list
page = {
'view': view,
'url': url,
'title': title,
'styles': styles,
'cb': populate_cb,
'args': args,
'kwargs': kwargs
}
self.pages.append(page)
# first time, we don't have a current_view, set it
if not self.current_view:
self.current_view = view
# TODO is this the correct place for this???
EmcGui.instance().model_set('browser',
self._model) # TODO needed every time ??
# switch to the new page
self._populate_page(page)
def _populate_page(self,
page,
is_back=False,
is_refresh=False,
is_unfreeze=False):
full = ' > '.join([p['title'] for p in self.pages])
EmcGui.instance().page_title_set(full)
# clear the items list
self.items = []
view = page['view']
"""
if view == self.current_view:
# same style for the 2 pages, ask the view to perform the correct anim
if is_refresh or is_unfreeze:
view.page_show(page['title'], ANIM_NONE)
elif is_back:
view.page_show(page['title'], ANIM_BACK)
elif len(self.pages) < 2:
view.page_show(page['title'], ANIM_NONE)
else:
view.page_show(page['title'], ANIM_FORWARD)
else:
# different style...hide one view and show the other
self.current_view.clear()
self.current_view.hide()
view.page_show(page['title'], ANIM_NONE)
view.show()
"""
# update state
self.current_view = view
# back item (optional)
if ini.get_bool('general', 'back_in_lists'):
self.item_add(BackItemClass(), 'emc://back', self)
# use this for extra debug
# print(self)
# populate the page calling the page user callback
url = page['url']
cb = page['cb']
args = page['args']
kwargs = page['kwargs']
cb(self, url, *args, **kwargs)
# tell the view that data has been resetted
self._model.view_reset()
self._model.select_item(0)
def change_style(self, style):
# the current page is always the last one
page = self.pages[-1]
# check if the style is valid (unless not explicitly ignored)
if ini.get_bool('general', 'ignore_views_restrictions') is False:
if not style in page['styles']:
DBG('Style %s not available for this page' % style)
EmcDialog(style='info', title=_('View restriction'),
text=_(
'<br><br>The requested view is not enabled for the current ' \
'page.<br><br><small><info>NOTE: You can ovveride this ' \
'restriction in the <i>Configuration → Views</i> ' \
'section.</info></small>'))
return
# change only if needed
view = self._create_or_get_view(style)
if view == self.current_view:
return
# remember the selected item
self.autoselect_url = self.current_view.selected_url_get()
# clear & hide the current view
self.current_view.clear()
self.current_view.hide()
# set the new view in the current (always the last) page
page['view'] = view
# remember the user choice
global _memorydb
page_url = self.pages[-1]['url']
_memorydb.set_data(page_url, style)
# recreate the page
self.refresh(hard=True)
def _mouse_hide_timer_cb(self):
if ini.get_bool('general', 'hide_mouse'):
self.mouse_cursor_hidden_set(True)
def icon_end_get(self, url, user_data):
if ini.get_bool(self._sec, self._opt) is True:
return 'icon/check_on'
return 'icon/check_off'