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Viewer: Fix images not being rendered at certain sizes when they are the only content on the page in paged mode with single page per screen. Fixes #1857803 [Viewer doesn't show some images](https://bugs.launchpad.net/calibre/+bug/1857803)

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Kovid Goyal 2019-12-29 21:37:16 +05:30
parent 034d561be7
commit 3932fb8b5a
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1 changed files with 10 additions and 4 deletions
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14
src/pyj/read_book/paged_mode.pyj
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@ -143,7 +143,8 @@ def layout(is_single_page, on_resize):
# cover, if so we treat it specially.
single_screen = (document_height() < scroll_viewport.height() + 75)
first_layout = True
has_svg = document.getElementsByTagName('svg').length > 0
svgs = document.getElementsByTagName('svg')
has_svg = svgs.length > 0
imgs = document.getElementsByTagName('img')
only_img = imgs.length is 1 and document.getElementsByTagName('div').length < 3 and document.getElementsByTagName('p').length < 2
if only_img and window.getComputedStyle(imgs[0]).zIndex < 0:
@ -206,9 +207,14 @@ def layout(is_single_page, on_resize):
# width 100% are wider than body and lead to a blank page after the
# current page (when cols_per_screen == 1). Similarly img elements
# with height=100% overflow the first column
is_full_screen_layout = (only_img or has_svg) and single_screen and (scroll_viewport.paged_content_width() < 2*ww + 10)
if is_single_page:
is_full_screen_layout = True
is_full_screen_layout = is_single_page
if not is_full_screen_layout:
has_no_more_than_two_columns = (scroll_viewport.paged_content_width() < 2*ww + 10)
if has_no_more_than_two_columns and single_screen:
if only_img and imgs.length and imgs[0].getBoundingClientRect().left < ww:
is_full_screen_layout = True
if has_svg and svgs.length == 1 and svgs[0].getBoundingClientRect().left < ww:
is_full_screen_layout = True
# Some browser engine, WebKit at least, adjust column widths to please
# themselves, unless the container width is an exact multiple, so we check