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Adds option specifying a different element to use as 'bottom', past which the header is hidden. #85

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Adds option specifying a different element to use as 'bottom', past which the header is hidden. #85

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4b0c546
Adds option specifying a different element to use as 'bottom', past w…
adrianschmidt Mar 13, 2015
e7db12c
Moves description of new option in readme.md
adrianschmidt Mar 13, 2015
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4 changes: 3 additions & 1 deletion js/jquery.stickytableheaders.js
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,7 @@
if (base.$el) {
base.$el.each(function () {
var $this = $(this),
$bottom = $(base.options.bottom) || $this,
newLeft,
newTopOffset = base.isWindowScrolling ? (
isNaN(base.options.fixedOffset) ?
Expand All @@ -123,6 +124,7 @@
) :
base.$scrollableArea.offset().top + (!isNaN(base.options.fixedOffset) ? base.options.fixedOffset : 0),
offset = $this.offset(),
bottomOffset = $bottom.offset(),

scrollTop = base.$scrollableArea.scrollTop() + newTopOffset,
scrollLeft = base.$scrollableArea.scrollLeft(),
Expand All @@ -131,7 +133,7 @@
scrollTop > offset.top :
newTopOffset > offset.top,
notScrolledPastBottom = (base.isWindowScrolling ? scrollTop : 0) <
(offset.top + $this.height() - base.$clonedHeader.height() - (base.isWindowScrolling ? 0 : newTopOffset));
(bottomOffset.top + $bottom.height() - base.$clonedHeader.height() - (base.isWindowScrolling ? 0 : newTopOffset));

if (scrolledPastTop && notScrolledPastBottom) {
newLeft = offset.left - scrollLeft + base.options.leftOffset;
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2 changes: 1 addition & 1 deletion js/jquery.stickytableheaders.min.js
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7 changes: 7 additions & 0 deletions readme.md
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,13 @@ $(window).trigger('resize.stickyTableHeaders');
###Options
You can initialize the plugin with an options map to tweak the behavior. The following options are supported:

####`bottom`
A DOM element or jQuery object. The sticky header will remain visible until scrolling past the bottom of the specified element instead of the bottom of the table:

```js
$('table').stickyTableHeaders({bottom: $('#another-table')});
```

####`fixedOffset`
A number or jQuery object specifying how much the sticky header should be offset from the top of the page:

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