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Fix decoding of CFI in a tag that has a range wrapper as its first child

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Kovid Goyal 2020-07-23 22:33:04 +05:30
parent 0c233efa27
commit 366a69a3cd
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2 changed files with 14 additions and 4 deletions
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2
src/pyj/read_book/cfi.pyj
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@ -394,6 +394,8 @@ def decode(cfi, doc):
# Find the text node that contains the offset
if offset is not None:
orig_offset = offset
if node.parentNode?.nodeType is Node.ELEMENT_NODE and node.parentNode.dataset.calibreRangeWrapper:
node = node.parentNode
node, offset, ok = node_for_text_offset(node.parentNode.childNodes, offset, point.forward, node)
if not ok:
error = "Offset out of range: " + orig_offset

16
src/pyj/read_book/test_cfi.pyj
View File

@ -55,12 +55,10 @@ def cfi_roundtripping():
@test
def cfi_with_range_wrappers():
document.body.appendChild(E.p('abc'))
document.body.appendChild(E.p('abc', E.span('def', data_calibre_range_wrapper='1'), '123'))
p = document.body.firstChild
path_to_p = encode(document, p)
p.appendChild(E.span('def', data_calibre_range_wrapper='1'))
rw1 = p.lastChild
p.appendChild(document.createTextNode('123'))
rw1 = p.querySelector('span')
assert_equal(encode(document, p.firstChild, 1), f'{path_to_p}/1:1')
assert_equal(decode(f'{path_to_p}/1:1'), {'node': p.firstChild, 'offset': 1})
assert_equal(encode(document, rw1), f'{path_to_p}/1:3')
@ -98,3 +96,13 @@ def cfi_with_range_wrappers():
p.appendChild(document.createTextNode('def'))
after_wrapper = encode(document, p.lastChild, 1)
assert_equal(after_wrapper, f'{path_to_p}/1:4')
document.body.appendChild(
E.p(E.span('abc', data_calibre_range_wrapper='8'), 'def', E.span('123', data_calibre_range_wrapper='9'), '456'))
p = document.body.lastChild
path_to_p = encode(document, p)
rw = p.querySelectorAll('span')[-1]
assert_equal(decode(f'{path_to_p}/1:0'), {'node': p.firstChild.firstChild, 'offset': 0})
assert_equal(decode(f'{path_to_p}/1:5'), {'node': p.firstChild.nextSibling, 'offset': 2})
assert_equal(decode(f'{path_to_p}/1:7'), {'node': rw.firstChild, 'offset': 1})
assert_equal(decode(f'{path_to_p}/1:11'), {'node': rw.nextSibling, 'offset': 2})