Current File : //lib/calibre/calibre/gui2/actions/tweak_epub.py
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2010, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
import time
from qt.core import QTimer, QDialog, QDialogButtonBox, QCheckBox, QVBoxLayout, QLabel, Qt
from calibre.gui2 import error_dialog, question_dialog
from calibre.gui2.actions import InterfaceAction
class Choose(QDialog):
def __init__(self, fmts, parent=None):
QDialog.__init__(self, parent)
self.l = l = QVBoxLayout(self)
self.setLayout(l)
self.setWindowTitle(_('Choose format to edit'))
self.la = la = QLabel(_(
'This book has multiple formats that can be edited. Choose the format you want to edit.'))
l.addWidget(la)
self.rem = QCheckBox(_('Always ask when more than one format is available'))
self.rem.setChecked(True)
l.addWidget(self.rem)
self.bb = bb = QDialogButtonBox(self)
l.addWidget(bb)
bb.accepted.connect(self.accept)
bb.rejected.connect(self.reject)
self.buts = buts = []
for fmt in fmts:
b = bb.addButton(fmt.upper(), QDialogButtonBox.ButtonRole.AcceptRole)
b.setObjectName(fmt)
connect_lambda(b.clicked, self, lambda self: self.chosen(self.sender().objectName()))
buts.append(b)
self.fmt = None
self.resize(self.sizeHint())
def chosen(self, fmt):
self.fmt = fmt
def accept(self):
from calibre.gui2.tweak_book import tprefs
tprefs['choose_tweak_fmt'] = self.rem.isChecked()
QDialog.accept(self)
class TweakEpubAction(InterfaceAction):
name = 'Tweak ePub'
action_spec = (_('Edit book'), 'edit_book.png', _('Edit books in the EPUB or AZW formats'), _('T'))
dont_add_to = frozenset(('context-menu-device',))
action_type = 'current'
accepts_drops = True
def accept_enter_event(self, event, mime_data):
if mime_data.hasFormat("application/calibre+from_library"):
return True
return False
def accept_drag_move_event(self, event, mime_data):
if mime_data.hasFormat("application/calibre+from_library"):
return True
return False
def drop_event(self, event, mime_data):
mime = 'application/calibre+from_library'
if mime_data.hasFormat(mime):
self.dropped_ids = tuple(map(int, mime_data.data(mime).data().split()))
QTimer.singleShot(1, self.do_drop)
return True
return False
def do_drop(self):
book_ids = self.dropped_ids
del self.dropped_ids
if book_ids:
self.do_tweak(book_ids[0])
def genesis(self):
self.qaction.triggered.connect(self.tweak_book)
def tweak_book(self):
row = self.gui.library_view.currentIndex()
if not row.isValid():
return error_dialog(self.gui, _('Cannot Edit book'),
_('No book selected'), show=True)
book_id = self.gui.library_view.model().id(row)
self.do_tweak(book_id)
def do_tweak(self, book_id):
if self.gui.current_view() is not self.gui.library_view:
return error_dialog(self.gui, _('Cannot edit book'), _(
'Editing of books on the device is not supported'), show=True)
from calibre.ebooks.oeb.polish.main import SUPPORTED
db = self.gui.library_view.model().db
fmts = db.formats(book_id, index_is_id=True) or ''
fmts = [x.upper().strip() for x in fmts.split(',') if x]
tweakable_fmts = set(fmts).intersection(SUPPORTED)
if not tweakable_fmts:
if not fmts:
if not question_dialog(self.gui, _('No editable formats'),
_('Do you want to create an empty EPUB file to edit?')):
return
tweakable_fmts = {'EPUB'}
self.gui.iactions['Add Books'].add_empty_format_to_book(book_id, 'EPUB')
current_idx = self.gui.library_view.currentIndex()
if current_idx.isValid():
self.gui.library_view.model().current_changed(current_idx, current_idx)
else:
return error_dialog(self.gui, _('Cannot edit book'), _(
'The book must be in the %s formats to edit.'
'\n\nFirst convert the book to one of these formats.'
) % (_(' or ').join(SUPPORTED)), show=True)
from calibre.gui2.tweak_book import tprefs
tprefs.refresh() # In case they were changed in a Tweak Book process
if len(tweakable_fmts) > 1:
if tprefs['choose_tweak_fmt']:
d = Choose(sorted(tweakable_fmts, key=tprefs.defaults['tweak_fmt_order'].index), self.gui)
if d.exec() != QDialog.DialogCode.Accepted:
return
tweakable_fmts = {d.fmt}
else:
fmts = [f for f in tprefs['tweak_fmt_order'] if f in tweakable_fmts]
if not fmts:
fmts = [f for f in tprefs.defaults['tweak_fmt_order'] if f in tweakable_fmts]
tweakable_fmts = {fmts[0]}
fmt = tuple(tweakable_fmts)[0]
self.ebook_edit_format(book_id, fmt)
def ebook_edit_format(self, book_id, fmt):
'''
Also called from edit_metadata formats list. In that context,
SUPPORTED check was already done.
'''
db = self.gui.library_view.model().db
from calibre.gui2.tweak_book import tprefs
tprefs.refresh() # In case they were changed in a Tweak Book process
path = db.new_api.format_abspath(book_id, fmt)
if path is None:
return error_dialog(self.gui, _('File missing'), _(
'The %s format is missing from the calibre library. You should run'
' library maintenance.') % fmt, show=True)
tweak = 'ebook-edit'
try:
self.gui.setCursor(Qt.CursorShape.BusyCursor)
if tprefs['update_metadata_from_calibre']:
db.new_api.embed_metadata((book_id,), only_fmts={fmt})
notify = '%d:%s:%s:%s' % (book_id, fmt, db.library_id, db.library_path)
self.gui.job_manager.launch_gui_app(tweak, kwargs=dict(path=path, notify=notify))
time.sleep(2)
finally:
self.gui.unsetCursor()
Mini Shell