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Edit Book: Fix Preview panel sometimes not working when opening multiple html files one after the other very quickly

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This commit is contained in:
Kovid Goyal 2015-03-13 13:28:54 +05:30
parent 9ba1fdda45
commit 466dc2e144
1 changed files with 9 additions and 2 deletions
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11
src/calibre/gui2/tweak_book/preview.py
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@ -48,12 +48,17 @@ def parse_html(raw):
class ParseItem(object):
__slots__ = ('name', 'length', 'fingerprint', 'parsed_data')
__slots__ = ('name', 'length', 'fingerprint', 'parsing_done', 'parsed_data')
def __init__(self, name):
self.name = name
self.length, self.fingerprint = 0, None
self.parsed_data = None
self.parsing_done = False
def __repr__(self):
return 'ParsedItem(name=%r, length=%r, fingerprint=%r, parsing_done=%r, parsed_data_is_None=%r)' % (
self.name, self.length, self.fingerprint, self.parsing_done, self.parsed_data is None)
class ParseWorker(Thread):
@ -100,6 +105,7 @@ class ParseWorker(Thread):
import traceback
traceback.print_exc()
else:
pi.parsing_done = True
parsed_data = res['result']
if res['tb']:
prints("Parser error:")
@ -114,9 +120,10 @@ class ParseWorker(Thread):
if pi is None:
self.parse_items[name] = pi = ParseItem(name)
else:
if pi.length == ldata and pi.fingerprint == hdata:
if pi.parsing_done and pi.length == ldata and pi.fingerprint == hdata:
return
pi.parsed_data = None
pi.parsing_done = False
pi.length, pi.fingerprint = ldata, hdata
self.requests.put((self.request_count, pi, data))
self.request_count += 1