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EPUB CFI: Workaround webkit not reporting the boundingclientrect for an empty span that follows lots of whitespace correctly

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This commit is contained in:
Kovid Goyal 2012-01-06 15:53:39 +05:30
parent 3eb93282f6
commit e33e5ede29
3 changed files with 13 additions and 5 deletions
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13
src/calibre/ebooks/oeb/display/cfi.coffee
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@ -482,7 +482,9 @@ class CanonicalFragmentIdentifier
this.set_current_time(point.node, point.time)
if point.range != null
# Character offset
r = point.range
[so, eo, sc, ec] = [r.startOffset, r.endOffset, r.startContainer, r.endContainer]
node = r.startContainer
ndoc = node.ownerDocument
nwin = ndoc.defaultView
@ -491,16 +493,19 @@ class CanonicalFragmentIdentifier
r.surroundContents(span)
span.scrollIntoView()
fn = ->
rect = span.getBoundingClientRect()
x = (point.a*rect.left + (1-point.a)*rect.right)
y = (rect.top + rect.bottom)/2
[x, y] = viewport_to_document(x, y, ndoc)
p = span.parentNode
for node in span.childNodes
span.removeChild(node)
p.insertBefore(node, span)
p.removeChild(span)
p.normalize()
r.setStart(sc, so)
r.setEnd(ec, eo)
rect = r.getClientRects()[0]
x = (point.a*rect.left + (1-point.a)*rect.right)
y = (rect.top + rect.bottom)/2
[x, y] = viewport_to_document(x, y, ndoc)
if callback
callback(x, y)
else

2
src/calibre/ebooks/oeb/display/test-cfi/cfi-test.coffee
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@ -66,8 +66,8 @@ window.onload = ->
base = document.getElementById('first-h1').innerHTML
document.title = base + ": " + window.current_cfi
fn = () ->
show_cfi()
window_ypos(ypos)
setTimeout(show_cfi, 1)
setTimeout(fn, 100)
null

3
src/calibre/ebooks/oeb/display/test-cfi/index.html
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@ -96,6 +96,9 @@
demoralized by the charms of pleasure of the moment, so blinded
by desire, that they cannot foresee</p>
<h2>Lots of collapsed whitespace</h2>
<p>Try clicking the A character after the colon: A suffix</p>
<h2>Lots of nested tags</h2>
<p>A <span>bunch of <span>nested<span> and</span> <span>sibling</span>
tags, all </span> mixed together</span>. <span>Click all</span>