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Nicer error message when no supported formats for conversion found

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This commit is contained in:
Kovid Goyal 2013-01-01 18:40:27 +05:30
parent 7e0acebabc
commit f368250f1d
2 changed files with 31 additions and 13 deletions
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7
src/calibre/gui2/convert/single.py
View File

@ -33,7 +33,10 @@ from calibre.utils.config import prefs
from calibre.utils.logging import Log
class NoSupportedInputFormats(Exception):
pass
def __init__(self, available_formats):
Exception.__init__(self)
self.available_formats = available_formats
def sort_formats_by_preference(formats, prefs):
uprefs = [x.upper() for x in prefs]
@ -86,7 +89,7 @@ def get_supported_input_formats_for_book(db, book_id):
input_formats = set([x.lower() for x in supported_input_formats()])
input_formats = sorted(available_formats.intersection(input_formats))
if not input_formats:
raise NoSupportedInputFormats
raise NoSupportedInputFormats(tuple(x for x in available_formats if x))
return input_formats

27
src/calibre/gui2/tools.py
View File

@ -88,19 +88,34 @@ def convert_single_ebook(parent, db, book_ids, auto_conversion=False, # {{{
changed = True
d.break_cycles()
except NoSupportedInputFormats:
bad.append(book_id)
except NoSupportedInputFormats as nsif:
bad.append((book_id, nsif.available_formats))
if bad and show_no_format_warning:
if len(bad) == 1 and not bad[0][1]:
title = db.title(bad[0][0], True)
warning_dialog(parent, _('Could not convert'), '<p>'+
_('Could not convert <b>%s</b> as it has no ebook files. If you '
'think it should have files, but calibre is not finding '
'them, that is most likely because you moved the book\'s '
'files around outside of calibre. You will need to find those files '
'and re-add them to calibre.')%title, show=True)
else:
res = []
for id in bad:
for id, available_formats in bad:
title = db.title(id, True)
res.append('%s'%title)
if available_formats:
msg = _('No supported formats (Available formats: %s)')%(
', '.join(available_formats))
else:
msg = _('This book has no actual ebook files')
res.append('%s - %s'%(title, msg))
msg = '%s' % '\n'.join(res)
warning_dialog(parent, _('Could not convert some books'),
_('Could not convert %(num)d of %(tot)d books, because no suitable source'
' format was found.') % dict(num=len(res), tot=total),
_('Could not convert %(num)d of %(tot)d books, because no supported source'
' formats were found.') % dict(num=len(res), tot=total),
msg).exec_()
return jobs, changed, bad