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E-book viewer: Informative error message for themes button when no themes have been created

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Kovid Goyal 2015-08-30 10:27:38 +05:30
parent 0d8113aa93
commit 22e9cbfa37
1 changed files with 8 additions and 1 deletions
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9
src/calibre/gui2/viewer/ui.py
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@ -14,7 +14,7 @@ from PyQt5.Qt import (
QRegExpValidator, QRegExp, QPalette, QColor, QBrush, QPainter,
QDockWidget, QSize, QWebView, QLabel, QVBoxLayout)
from calibre.gui2 import rating_font
from calibre.gui2 import rating_font, error_dialog
from calibre.gui2.main_window import MainWindow
from calibre.gui2.search_box import SearchBox2
from calibre.gui2.viewer.documentview import DocumentView
@ -285,6 +285,7 @@ class Main(MainWindow):
d.setAllowedAreas(Qt.BottomDockWidgetArea | Qt.TopDockWidgetArea | Qt.LeftDockWidgetArea | Qt.RightDockWidgetArea)
self.create_actions()
self.themes_menu.aboutToShow.connect(self.themes_menu_shown, type=Qt.QueuedConnection)
self.metadata = Metadata(self.centralwidget)
self.history = History(self.action_back, self.action_forward)
@ -347,6 +348,12 @@ class Main(MainWindow):
self.setCorner(Qt.BottomRightCorner, Qt.RightDockWidgetArea)
self.footnotes_dock.close()
def themes_menu_shown(self):
if len(self.themes_menu.actions()) == 0:
self.themes_menu.hide()
error_dialog(self, _('No themes'), _(
'You must first create some themes in the viewer preferences'), show=True)
def create_actions(self):
def a(name, text, icon, tb=None, sc_name=None, menu_name=None, popup_mode=QToolButton.MenuButtonPopup):
name = 'action_' + name