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avoid exception when elements in pdf view have been removed

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Brian Gough 2014-12-04 16:44:41 +00:00
parent ce4fb7ec04
commit a15a6d877f
1 changed files with 5 additions and 0 deletions
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5
services/web/public/coffee/ide/pdfng/directives/pdfViewer.coffee
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@ -169,6 +169,11 @@ define [
@computeOffset = (page, position) ->
# console.log 'computing offset for', page, position
element = page.element
#console.log 'element =', $(element), 'parent =', $(element).parent()
t1 = $(element).offset()?.top
t2 = $(element).parent().offset()?.top
if not (t1? and t2?)
return $q((resolve, reject) -> reject('elements destroyed'))
pageTop = $(element).offset().top - $(element).parent().offset().top
# console.log('top of page scroll is', pageTop, 'vs', page.elemTop)
# console.log('inner height is', $(element).innerHeight())