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Only calculate length_before once

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Kovid Goyal 2017-05-07 15:20:34 +05:30
parent 1613f1e2c8
commit 43a121dec9
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 15 additions and 7 deletions
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22
src/pyj/read_book/iframe.pyj
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@ -84,6 +84,7 @@ class IframeBoss:
'find': self.find,
}
self.last_window_ypos = 0
self.length_before = None
def handle_message(self, event):
if event.source is not window.parent:
@ -136,6 +137,7 @@ class IframeBoss:
console.log('There was an error in the iframe unhandled exception handler')
def display(self, data):
self.length_before = None
self.content_ready = False
self.replace_history_on_next_cfi_update = True
self.book = current_book.book = data.book
@ -237,20 +239,26 @@ class IframeBoss:
self.jump_to_cfi(ipos.cfi)
elif ipos.type is 'search':
self.find(ipos.search_data, True)
spine = self.book.manifest.spine
files = self.book.manifest.files
current_name = current_spine_item().name
spine_index = spine.indexOf(current_name)
self.length_before = 0
if spine_index > -1:
for i in range(spine_index):
si = spine[i]
if si:
self.length_before += files[si]?.length or 0
self.onscroll()
self.send_message('content_loaded')
def get_progress_frac(self, current_name, spine_index):
length_before = 0
spine = self.book.manifest.spine
files = self.book.manifest.files
for i in range(spine_index):
si = spine[i]
if si:
length_before += files[si]?.length or 0
file_length = files[current_name]?.length or 0
if self.length_before is None:
return 0
frac = progress_frac()
ans = (length_before + (file_length * frac)) / self.book.manifest.spine_length
ans = (self.length_before + (file_length * frac)) / self.book.manifest.spine_length
return ans
def update_cfi(self):