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import logging
import time
from threading import Event, Thread
from typing import Optional, Callable
import gi
from cozy.control.artwork_cache import ArtworkCache
import inject
from cozy.model.book import Book
from cozy.model.chapter import Chapter
from cozy.report import reporter
from cozy.ui.chapter_element import ChapterElement
from cozy.ui.disk_element import DiskElement
from cozy.view_model.book_detail_view_model import BookDetailViewModel
from gi.repository import Adw, GLib, Gtk
log = logging.getLogger("BookDetailView")
ALBUM_ART_SIZE = 256
@Gtk.Template.from_resource('/com/github/geigi/cozy/book_detail.ui')
class BookDetailView(Gtk.Box):
__gtype_name__ = 'BookDetail'
play_book_button: Gtk.Button = Gtk.Template.Child()
book_label: Gtk.Label = Gtk.Template.Child()
author_label: Gtk.Label = Gtk.Template.Child()
last_played_label: Gtk.Label = Gtk.Template.Child()
total_label: Gtk.Label = Gtk.Template.Child()
remaining_label: Gtk.Label = Gtk.Template.Child()
book_progress_bar: Gtk.ProgressBar = Gtk.Template.Child()
published_label: Gtk.Label = Gtk.Template.Child()
published_text: Gtk.Label = Gtk.Template.Child()
download_box: Gtk.Box = Gtk.Template.Child()
download_label: Gtk.Label = Gtk.Template.Child()
download_image: Gtk.Image = Gtk.Template.Child()
download_switch: Gtk.Switch = Gtk.Template.Child()
album_art: Gtk.Picture = Gtk.Template.Child()
album_art_container: Gtk.Box = Gtk.Template.Child()
unavailable_box: Gtk.Box = Gtk.Template.Child()
chapters_stack: Gtk.Stack = Gtk.Template.Child()
chapter_box: Gtk.Box = Gtk.Template.Child()
book_overview_scroller: Gtk.ScrolledWindow = Gtk.Template.Child()
main_flow_box: Gtk.FlowBox = Gtk.Template.Child()
_view_model: BookDetailViewModel = inject.attr(BookDetailViewModel)
_artwork_cache: ArtworkCache = inject.attr(ArtworkCache)
_current_selected_chapter: Optional[ChapterElement] = None
def __init__(self, main_window_builder: Gtk.Builder):
super().__init__()
self._navigation_view: Adw.NavigationView = main_window_builder.get_object("navigation_view")
self._book_details_container: Adw.ToolbarView = main_window_builder.get_object("book_details_container")
self._book_details_container.set_content(self)
headerbar = Adw.HeaderBar()
self.header_title = Adw.WindowTitle()
headerbar.set_title_widget(self.header_title)
self._book_details_container.add_top_bar(headerbar)
self.book_overview_scroller.props.propagate_natural_height = True
self._chapters_event: Event = Event()
self._chapters_thread: Thread = None
self._prepare_chapters_job()
self._connect_view_model()
self._connect_widgets()
def _connect_view_model(self):
self._view_model.bind_to("book", self._on_book_changed)
self._view_model.bind_to("playing", self._on_play_changed)
self._view_model.bind_to("is_book_available", self._on_book_available_changed)
self._view_model.bind_to("downloaded", self._set_book_download_status)
self._view_model.bind_to("current_chapter", self._on_current_chapter_changed)
self._view_model.bind_to("last_played_text", self._on_last_played_text_changed)
self._view_model.bind_to("remaining_text", self._on_times_changed)
self._view_model.bind_to("progress_percent", self._on_times_changed)
self._view_model.bind_to("total_text", self._on_times_changed)
self._view_model.bind_to("playback_speed", self._on_times_changed)
self._view_model.bind_to("lock_ui", self._on_lock_ui_changed)
self._view_model.bind_to("open", self._on_open)
def _connect_widgets(self):
self.play_book_button.connect("clicked", self._play_book_clicked)
self.download_switch.connect("state-set", self._download_switch_changed)
def _on_book_changed(self):
if not self._view_model.book:
msg = "ViewModel book was None."
log.warning(msg)
reporter.warning("BookDetailView", msg)
return
self._chapters_event.clear()
book = self._view_model.book
self.chapters_stack.set_visible_child_name("chapters_loader")
self.book_overview_scroller.set_visible(False)
self._run_display_chapters_job(book)
self._current_selected_chapter = None
self.published_label.set_visible(False)
self.published_text.set_visible(False)
self.total_label.set_visible(False)
self.unavailable_box.set_visible(False)
self.book_label.set_text(book.name)
self.author_label.set_text(book.author)
self.header_title.set_title(book.name)
self.header_title.set_subtitle(book.author)
self.last_played_label.set_text(self._view_model.last_played_text)
self._set_cover_image(book)
self._display_external_section()
self._set_progress()
def _on_open(self):
if self._navigation_view.props.visible_page.props.tag == "book_overview":
self._navigation_view.pop_to_tag("book_overview")
else:
self._navigation_view.push_by_tag("book_overview")
def _on_play_changed(self):
playing = self._view_model.playing
if playing:
self.play_book_button.set_icon_name("media-playback-pause-symbolic")
else:
self.play_book_button.set_icon_name("media-playback-start-symbolic")
if self._current_selected_chapter:
self._current_selected_chapter.set_playing(playing)
else:
log.error("_current_selected_chapter is null. Skipping...")
reporter.error("book_detail_view",
"_current_selected_chapter was NULL. No play/pause chapter icon was changed")
def _on_book_available_changed(self):
info_visibility = not self._view_model.is_book_available
self.unavailable_box.set_visible(info_visibility)
def _on_current_chapter_changed(self):
if self._current_selected_chapter:
self._current_selected_chapter.deselect()
self._current_selected_chapter.set_playing(False)
current_chapter = self._view_model.current_chapter
for child in self.chapter_box:
if not isinstance(child, ChapterElement):
continue
if child.chapter == current_chapter:
self._current_selected_chapter = child
child.select()
child.set_playing(self._view_model.playing)
break
def _on_last_played_text_changed(self):
self.last_played_label.set_text(self._view_model.last_played_text)
def _on_times_changed(self):
self.total_label.set_text(self._view_model.total_text)
self._set_progress()
def _on_lock_ui_changed(self):
lock = self._view_model.lock_ui
self.download_switch.set_sensitive(not lock)
def _run_display_chapters_job(self, book):
self._chapters_event.clear()
# The job might be running on another thread. Attempt to cancel it first, wait a while and trigger the new one.
self._interrupt_chapters_jobs()
time.sleep(0.05)
# This is done on a the UI thread to prevent chapters from the previous book flashing before the new chapters
# are ready
self._schedule_chapters_clearing()
self._prepare_chapters_job()
self._chapters_thread: Thread = Thread(target=self._schedule_chapters_rendering,
args=[book, self._on_chapters_displayed])
self._chapters_thread.start()
def _schedule_chapters_rendering(self, book: Book, callback: Callable):
disk_number = -1
multiple_disks = self._view_model.disk_count > 1
for chapter in book.chapters:
if self._chapters_job_locked:
self._schedule_chapters_clearing()
return
if multiple_disks and disk_number != chapter.disk:
GLib.MainContext.default().invoke_full(GLib.PRIORITY_DEFAULT_IDLE, self._add_disk, book.id, chapter)
GLib.MainContext.default().invoke_full(GLib.PRIORITY_DEFAULT_IDLE, self._add_chapter, book.id, chapter)
disk_number = chapter.disk
# TODO We need a timeout value
self._chapters_event.wait()
self._chapters_event.clear()
GLib.MainContext.default().invoke_full(GLib.PRIORITY_DEFAULT_IDLE, callback)
def _on_chapters_displayed(self):
self.total_label.set_text(self._view_model.total_text)
self.total_label.set_visible(True)
self._set_book_download_status()
self._on_current_chapter_changed()
self._on_play_changed()
self._on_book_available_changed()
self.book_overview_scroller.set_visible(True)
self.chapters_stack.set_visible_child_name("chapters_wrapper")
def _display_external_section(self):
external = self._view_model.is_book_external
self.download_box.set_visible(external)
self.download_switch.set_visible(external)
if external:
self.download_switch.handler_block_by_func(self._download_switch_changed)
self.download_switch.set_active(self._view_model.book.offline)
self.download_switch.handler_unblock_by_func(self._download_switch_changed)
def _add_disk(self, book_id: int, chapter: Chapter):
if book_id != self._view_model.book.id:
return
disc_element = DiskElement(chapter.disk)
self.chapter_box.append(disc_element)
self._chapters_event.set()
def _add_chapter(self, book_id: int, chapter: Chapter):
if book_id != self._view_model.book.id:
return
chapter_element = ChapterElement(chapter)
chapter_element.connect("play-pause-clicked", self._play_chapter_clicked)
self.chapter_box.append(chapter_element)
self._chapters_event.set()
def _schedule_chapters_clearing(self):
GLib.MainContext.default().invoke_full(GLib.PRIORITY_DEFAULT_IDLE, self.chapter_box.remove_all_children)
def _set_progress(self):
self.remaining_label.set_text(self._view_model.remaining_text)
self.book_progress_bar.set_fraction(self._view_model.progress_percent)
def _set_cover_image(self, book: Book):
paintable = self._artwork_cache.get_cover_paintable(book, self.get_scale_factor(), ALBUM_ART_SIZE)
if paintable:
self.album_art_container.set_visible(True)
self.album_art.set_paintable(paintable)
self.album_art.set_overflow(True)
else:
self.album_art_container.set_visible(False)
def _interrupt_chapters_jobs(self):
self._chapters_job_locked = True
try:
self._chapters_thread.join(timeout=0.2)
except AttributeError as e:
pass
def _prepare_chapters_job(self):
self._chapters_job_locked: bool = False
def _download_switch_changed(self, _, state: bool):
self._view_model.download_book(state)
def _set_book_download_status(self):
if not self._view_model.is_book_external:
return
if self._view_model.book.downloaded:
icon_name = "com.github.geigi.cozy.downloaded-symbolic"
text = _("Downloaded")
else:
icon_name = "com.github.geigi.cozy.download-symbolic"
text = _("Download")
self.download_image.set_from_icon_name(icon_name)
self.download_label.set_text(text)
def _play_chapter_clicked(self, _, chapter: Chapter):
self._view_model.play_chapter(chapter)
def _play_book_clicked(self, _):
self._view_model.play_book()
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