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Edit metadata dialog: Allow undoing a metadata download by long-clicking the Download metadata button and choosing "Undo last metadata download"

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Kovid Goyal 2014-09-19 17:08:09 +05:30
parent f5edac6074
commit 2e42bfa374
1 changed files with 20 additions and 2 deletions
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22
src/calibre/gui2/metadata/single.py
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@ -31,6 +31,9 @@ from calibre.utils.date import local_tz
from calibre.library.comments import merge_comments as merge_two_comments from calibre.library.comments import merge_comments as merge_two_comments
BASE_TITLE = _('Edit Metadata') BASE_TITLE = _('Edit Metadata')
fetched_fields = ('title', 'title_sort', 'authors', 'author_sort', 'series',
'series_index', 'languages', 'publisher', 'tags', 'rating',
'comments', 'pubdate')
class MetadataSingleDialogBase(ResizableDialog): class MetadataSingleDialogBase(ResizableDialog):
@ -44,6 +47,7 @@ class MetadataSingleDialogBase(ResizableDialog):
self.changed = set() self.changed = set()
self.books_to_refresh = set() self.books_to_refresh = set()
self.rows_to_refresh = set() self.rows_to_refresh = set()
self.metadata_before_fetch = None
ResizableDialog.__init__(self, parent) ResizableDialog.__init__(self, parent)
def setupUi(self, *args): # {{{ def setupUi(self, *args): # {{{
@ -232,9 +236,13 @@ class MetadataSingleDialogBase(ResizableDialog):
self.pubdate = PubdateEdit(self) self.pubdate = PubdateEdit(self)
self.basic_metadata_widgets.extend([self.timestamp, self.pubdate]) self.basic_metadata_widgets.extend([self.timestamp, self.pubdate])
self.fetch_metadata_button = QPushButton( self.fetch_metadata_button = b = QToolButton(self)
_('&Download metadata'), self) b.setText(_('&Download metadata')), b.setPopupMode(b.DelayedPopup)
b.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed))
self.fetch_metadata_button.clicked.connect(self.fetch_metadata) self.fetch_metadata_button.clicked.connect(self.fetch_metadata)
self.fetch_metadata_menu = m = QMenu(self.fetch_metadata_button)
m.addAction(QIcon(I('edit-undo.png')), _('Undo last metadata download'), self.undo_fetch_metadata)
self.fetch_metadata_button.setMenu(m)
self.download_shortcut.activated.connect(self.fetch_metadata_button.click) self.download_shortcut.activated.connect(self.fetch_metadata_button.click)
font = self.fmb_font = QFont() font = self.fmb_font = QFont()
font.setBold(True) font.setBold(True)
@ -295,6 +303,7 @@ class MetadataSingleDialogBase(ResizableDialog):
def __call__(self, id_): def __call__(self, id_):
self.book_id = id_ self.book_id = id_
self.books_to_refresh = set([]) self.books_to_refresh = set([])
self.metadata_before_fetch = None
for widget in self.basic_metadata_widgets: for widget in self.basic_metadata_widgets:
widget.initialize(self.db, id_) widget.initialize(self.db, id_)
for widget in getattr(self, 'custom_metadata_widgets', []): for widget in getattr(self, 'custom_metadata_widgets', []):
@ -439,6 +448,7 @@ class MetadataSingleDialogBase(ResizableDialog):
ret = d.start(title=self.title.current_val, authors=self.authors.current_val, ret = d.start(title=self.title.current_val, authors=self.authors.current_val,
identifiers=self.identifiers.current_val) identifiers=self.identifiers.current_val)
if ret == d.Accepted: if ret == d.Accepted:
self.metadata_before_fetch = {f:getattr(self, f).current_val for f in fetched_fields}
from calibre.ebooks.metadata.sources.prefs import msprefs from calibre.ebooks.metadata.sources.prefs import msprefs
mi = d.book mi = d.book
dummy = Metadata(_('Unknown')) dummy = Metadata(_('Unknown'))
@ -458,6 +468,14 @@ class MetadataSingleDialogBase(ResizableDialog):
if d.cover_pixmap is not None: if d.cover_pixmap is not None:
self.cover.current_val = pixmap_to_data(d.cover_pixmap) self.cover.current_val = pixmap_to_data(d.cover_pixmap)
def undo_fetch_metadata(self):
if self.metadata_before_fetch is None:
return error_dialog(self, _('No downloaded metadata'), _(
'There is no downloaded metadata to undo'), show=True)
for field, val in self.metadata_before_fetch.iteritems():
getattr(self, field).current_val = val
self.metadata_before_fetch = None
def configure_metadata(self): def configure_metadata(self):
from calibre.gui2.preferences import show_config_widget from calibre.gui2.preferences import show_config_widget
gui = self.parent() gui = self.parent()