Files
sublime-music/sublime/ui/util.py
2020-05-08 11:30:18 -06:00

372 lines
12 KiB
Python

import functools
import re
from concurrent.futures import Future
from typing import (
Any, Callable, cast, Iterable, List, Match, Optional, Tuple, Union)
import gi
from deepdiff import DeepDiff
gi.require_version('Gtk', '3.0')
from gi.repository import Gdk, GLib, Gtk
from sublime.cache_manager import CacheManager, SongCacheStatus
from sublime.server.api_objects import Playlist
from sublime.state_manager import ApplicationState
def format_song_duration(duration_secs: Optional[int]) -> str:
"""
Formats the song duration as mins:seconds with the seconds being
zero-padded if necessary.
>>> format_song_duration(80)
'1:20'
>>> format_song_duration(62)
'1:02'
"""
if not duration_secs:
return '-:--'
return f'{duration_secs // 60}:{duration_secs % 60:02}'
def pluralize(
string: str,
number: int,
pluralized_form: str = None,
) -> str:
"""
Pluralize the given string given the count as a number.
>>> pluralize('foo', 1)
'foo'
>>> pluralize('foo', 2)
'foos'
>>> pluralize('foo', 0)
'foos'
"""
if number != 1:
return pluralized_form or f'{string}s'
return string
def format_sequence_duration(duration_secs: int) -> str:
"""
Formats duration in English.
>>> format_sequence_duration(30)
'30 seconds'
>>> format_sequence_duration(90)
'1 minute, 30 seconds'
>>> format_sequence_duration(60 * 60 + 120)
'1 hour, 2 minutes'
"""
duration_mins = (duration_secs // 60) % 60
duration_hrs = duration_secs // 60 // 60
duration_secs = duration_secs % 60
format_components = []
if duration_hrs > 0:
hrs = '{} {}'.format(duration_hrs, pluralize('hour', duration_hrs))
format_components.append(hrs)
if duration_mins > 0:
mins = '{} {}'.format(
duration_mins, pluralize('minute', duration_mins))
format_components.append(mins)
# Show seconds if there are no hours.
if duration_hrs == 0:
secs = '{} {}'.format(
duration_secs, pluralize('second', duration_secs))
format_components.append(secs)
return ', '.join(format_components)
def esc(string: Optional[str]) -> str:
if string is None:
return ''
return string.replace('&', '&').replace(" target='_blank'", '')
def dot_join(*items: Any) -> str:
"""
Joins the given strings with a dot character. Filters out None values.
"""
return ''.join(map(str, filter(lambda x: x is not None, items)))
def get_cached_status_icon(cache_status: SongCacheStatus) -> str:
cache_icon = {
SongCacheStatus.NOT_CACHED: '',
SongCacheStatus.CACHED: 'folder-download-symbolic',
SongCacheStatus.PERMANENTLY_CACHED: 'view-pin-symbolic',
SongCacheStatus.DOWNLOADING: 'emblem-synchronizing-symbolic',
}
return cache_icon[cache_status]
def _parse_diff_location(location: str) -> Tuple:
match = re.match(r'root\[(\d*)\](?:\[(\d*)\]|\.(.*))?', location)
return tuple(g for g in cast(Match, match).groups() if g is not None)
def diff_song_store(store_to_edit: Any, new_store: Iterable[Any]):
"""
Diffing song stores is nice, because we can easily make edits by modifying
the underlying store.
"""
old_store = [row[:] for row in store_to_edit]
# Diff the lists to determine what needs to be changed.
diff = DeepDiff(old_store, new_store)
changed = diff.get('values_changed', {})
added = diff.get('iterable_item_added', {})
removed = diff.get('iterable_item_removed', {})
for edit_location, diff in changed.items():
idx, field = _parse_diff_location(edit_location)
store_to_edit[int(idx)][int(field)] = diff['new_value']
for add_location, value in added.items():
store_to_edit.append(value)
for remove_location, value in reversed(list(removed.items())):
remove_at = int(_parse_diff_location(remove_location)[0])
del store_to_edit[remove_at]
def diff_model_store(store_to_edit: Any, new_store: Iterable[Any]):
"""
The diff here is that if there are any differences, then we refresh the
entire list. This is because it is too hard to do editing.
"""
old_store = store_to_edit[:]
diff = DeepDiff(old_store, new_store)
if diff == {}:
return
store_to_edit.remove_all()
for model in new_store:
store_to_edit.append(model)
def show_song_popover(
song_ids: List[int],
x: int,
y: int,
relative_to: Any,
position: Gtk.PositionType = Gtk.PositionType.BOTTOM,
on_download_state_change: Callable[[], None] = lambda: None,
show_remove_from_playlist_button: bool = False,
extra_menu_items: List[Tuple[Gtk.ModelButton, Any]] = [],
):
def on_download_songs_click(_: Any):
CacheManager.batch_download_songs(
song_ids,
before_download=on_download_state_change,
on_song_download_complete=on_download_state_change,
)
def on_remove_downloads_click(_: Any):
CacheManager.batch_delete_cached_songs(
song_ids,
on_song_delete=on_download_state_change,
)
def on_add_to_playlist_click(_: Any, playlist: Playlist):
CacheManager.executor.submit(
CacheManager.update_playlist,
playlist_id=playlist.id,
song_id_to_add=song_ids,
)
popover = Gtk.PopoverMenu()
vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
# Add all of the menu items to the popover.
song_count = len(song_ids)
# Determine if we should enable the download button.
download_sensitive, remove_download_sensitive = False, False
albums, artists, parents = set(), set(), set()
for song_id in song_ids:
details = CacheManager.get_song_details(song_id).result()
status = CacheManager.get_cached_status(details)
albums.add(details.albumId)
artists.add(details.artistId)
parents.add(details.parent)
if download_sensitive or status == SongCacheStatus.NOT_CACHED:
download_sensitive = True
if (remove_download_sensitive
or status in (SongCacheStatus.CACHED,
SongCacheStatus.PERMANENTLY_CACHED)):
remove_download_sensitive = True
go_to_album_button = Gtk.ModelButton(
text='Go to album', action_name='app.go-to-album')
if len(albums) == 1 and list(albums)[0] is not None:
album_value = GLib.Variant('s', list(albums)[0])
go_to_album_button.set_action_target_value(album_value)
go_to_artist_button = Gtk.ModelButton(
text='Go to artist', action_name='app.go-to-artist')
if len(artists) == 1 and list(artists)[0] is not None:
artist_value = GLib.Variant('s', list(artists)[0])
go_to_artist_button.set_action_target_value(artist_value)
browse_to_song = Gtk.ModelButton(
text=f"Browse to {pluralize('song', song_count)}",
action_name='app.browse-to',
)
if len(parents) == 1 and list(parents)[0] is not None:
parent_value = GLib.Variant('s', list(parents)[0])
browse_to_song.set_action_target_value(parent_value)
menu_items = [
Gtk.ModelButton(
text='Play next',
action_name='app.play-next',
action_target=GLib.Variant('as', song_ids),
),
Gtk.ModelButton(
text='Add to queue',
action_name='app.add-to-queue',
action_target=GLib.Variant('as', song_ids),
),
Gtk.Separator(orientation=Gtk.Orientation.HORIZONTAL),
go_to_album_button,
go_to_artist_button,
browse_to_song,
Gtk.Separator(orientation=Gtk.Orientation.HORIZONTAL),
(
Gtk.ModelButton(
text=f"Download {pluralize('song', song_count)}",
sensitive=download_sensitive,
),
on_download_songs_click,
),
(
Gtk.ModelButton(
text=f"Remove {pluralize('download', song_count)}",
sensitive=remove_download_sensitive,
),
on_remove_downloads_click,
),
Gtk.Separator(orientation=Gtk.Orientation.HORIZONTAL),
Gtk.ModelButton(
text=f"Add {pluralize('song', song_count)} to playlist",
menu_name='add-to-playlist',
),
*extra_menu_items,
]
for item in menu_items:
if type(item) == tuple:
el, fn = item
el.connect('clicked', fn)
el.get_style_context().add_class('menu-button')
vbox.pack_start(item[0], False, True, 0)
else:
item.get_style_context().add_class('menu-button')
vbox.pack_start(item, False, True, 0)
popover.add(vbox)
# Create the "Add song(s) to playlist" sub-menu.
playlists_vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
# Back button
playlists_vbox.add(
Gtk.ModelButton(
inverted=True,
centered=True,
menu_name='main',
))
# The playlist buttons
for playlist in CacheManager.get_playlists().result():
button = Gtk.ModelButton(text=playlist.name)
button.get_style_context().add_class('menu-button')
button.connect('clicked', on_add_to_playlist_click, playlist)
playlists_vbox.pack_start(button, False, True, 0)
popover.add(playlists_vbox)
popover.child_set_property(playlists_vbox, 'submenu', 'add-to-playlist')
# Positioning of the popover.
rect = Gdk.Rectangle()
rect.x, rect.y, rect.width, rect.height = x, y, 1, 1
popover.set_pointing_to(rect)
popover.set_position(position)
popover.set_relative_to(relative_to)
popover.popup()
popover.show_all()
def async_callback(
future_fn: Callable[..., Future],
before_download: Callable[[Any], None] = None,
on_failure: Callable[[Any, Exception], None] = None,
) -> Callable[[Callable], Callable]:
"""
Defines the ``async_callback`` decorator.
When a function is annotated with this decorator, the function becomes the
done callback for the given future-generating lambda function. The
annotated function will be called with the result of the future generated
by said lambda function.
:param future_fn: a function which generates a
:class:`concurrent.futures.Future` or :class:`CacheManager.Result`.
"""
def decorator(callback_fn: Callable) -> Callable:
@functools.wraps(callback_fn)
def wrapper(
self: Any,
*args,
state: ApplicationState = None,
force: bool = False,
order_token: int = None,
**kwargs,
):
if before_download:
on_before_download = (
lambda: GLib.idle_add(before_download, self))
else:
on_before_download = (lambda: None)
def future_callback(f: Union[Future, CacheManager.Result]):
try:
result = f.result()
except Exception as e:
if on_failure:
GLib.idle_add(on_failure, self, e)
return
GLib.idle_add(
lambda: callback_fn(
self,
result,
state=state,
force=force,
order_token=order_token,
))
future: Union[Future, CacheManager.Result] = future_fn(
*args,
before_download=on_before_download,
force=force,
**kwargs,
)
future.add_done_callback(future_callback)
return wrapper
return decorator