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Viewer: Fix rendering of fullscreen images using SVG markup

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Kovid Goyal 2019-09-11 14:49:04 +05:30
parent 400450f193
commit bc54f9dbbb
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1 changed files with 30 additions and 3 deletions
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33
src/pyj/read_book/iframe.pyj
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@ -212,13 +212,40 @@ class IframeBoss:
opts.color_scheme = data.color_scheme opts.color_scheme = data.color_scheme
apply_colors() apply_colors()
def fix_fullscreen_svg_images(self):
# Full screen images using SVG no longer render correctly
# webengine. This is because it sets the width to the
# viewport width and simply adjusts the height accordingly
# So we replace 100% with 100vw and 100vh to get the desired
# rendering
child_names = v'[]'
for node in document.body.childNodes:
if node.tagName:
name = node.tagName.toLowerCase()
if name is not 'style' and name is not 'script':
child_names.push(name)
if child_names.length > 1:
break
if child_names.length is 1 and child_names[0] is 'div':
names = []
svg = None
for node in document.body.querySelectorAll('*'):
if node.tagName:
name = node.tagName.toLowerCase()
if name is not 'style' and name is not 'script':
names.push(name)
if name is 'svg':
svg = node
if names == ['div', 'svg', 'image'] or names == ['svg', 'image']:
if svg.getAttribute('width') is '100%' and svg.getAttribute('height') is '100%':
svg.setAttribute('width', '100vw')
svg.setAttribute('height', '100vh')
def content_loaded(self): def content_loaded(self):
document.documentElement.style.overflow = 'hidden' document.documentElement.style.overflow = 'hidden'
# document.body.appendChild(
# E.style() # TODO: User style sheet
# )
self.last_window_width, self.last_window_height = scroll_viewport.width(), scroll_viewport.height() self.last_window_width, self.last_window_height = scroll_viewport.width(), scroll_viewport.height()
apply_settings() apply_settings()
self.fix_fullscreen_svg_images()
self.do_layout() self.do_layout()
if self.mathjax: if self.mathjax:
return apply_mathjax(self.mathjax, self.book.manifest.link_uid, self.content_loaded_stage2) return apply_mathjax(self.mathjax, self.book.manifest.link_uid, self.content_loaded_stage2)