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Bulk metadata edit: Fix getting cover from EPUB files that have no cover image by rendering the first page as the cover not working. Fixes #1374243 [Bulk Metadata "Set from ebook file(s)" when no cover image doesn't work](https://bugs.launchpad.net/calibre/+bug/1374243)

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This commit is contained in:
Kovid Goyal 2014-09-27 10:06:25 +05:30
parent 04a5ae2c2e
commit f415c6ad80
1 changed files with 19 additions and 3 deletions
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22
src/calibre/ebooks/__init__.py
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@ -8,7 +8,7 @@ from various formats.
''' '''
import traceback, os, re import traceback, os, re
from calibre import CurrentDir from calibre import CurrentDir, prints
class ConversionError(Exception): class ConversionError(Exception):
@ -123,10 +123,26 @@ def render_html_svg_workaround(path_to_html, log, width=590, height=750):
pass pass
if data is None: if data is None:
renderer = render_html(path_to_html, width, height) from calibre.gui2 import is_ok_to_use_qt
data = getattr(renderer, 'data', None) if is_ok_to_use_qt():
data = render_html_data(path_to_html, width, height)
else:
from calibre.utils.ipc.simple_worker import fork_job, WorkerError
try:
result = fork_job('calibre.ebooks',
'render_html_data',
(path_to_html, width, height),
no_output=True)
data = result['result']
except WorkerError as err:
prints(err.orig_tb)
except:
traceback.print_exc()
return data return data
def render_html_data(path_to_html, width, height):
renderer = render_html(path_to_html, width, height)
return getattr(renderer, 'data', None)
def render_html(path_to_html, width=590, height=750, as_xhtml=True): def render_html(path_to_html, width=590, height=750, as_xhtml=True):
from PyQt5.QtWebKitWidgets import QWebPage from PyQt5.QtWebKitWidgets import QWebPage