forked from openkylin/platform_build
am c774a312: Merge "fix sidebar autoscroll when the selected doc is not visible. bug: 9676913" into jb-mr2-docs
* commit 'c774a312359ddf3fedcbe90b00ff6d6f330d95b8': fix sidebar autoscroll when the selected doc is not visible. bug: 9676913
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commit
d1d606b4d6
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@ -819,13 +819,18 @@ function scrollIntoView(nav) {
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if ($nav.is(':visible')) {
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var $selected = $(".selected", $nav);
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if ($selected.length == 0) return;
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var selectedOffset = $selected.position().top;
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if (selectedOffset + 90 > $nav.height()) { // add 90 so that we scroll up even
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// if the current item is close to the bottom
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api.scrollTo(0, selectedOffset - ($nav.height() / 4), false); // scroll the item into view
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// to be 1/4 of the way from the top
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if ($selected.length == 0) {
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// If no selected item found, exit
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return;
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}
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var selectedOffset = $selected.offset().top; // measure offset from top, relative to entire page
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if (selectedOffset > $nav.height() * .8) { // multiply nav height by .8 so we move up any
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// items more than 80% down the nav
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// scroll the item up by an amount 125px less than the window height (account for site header)
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// and then multiply nav height by .8 to match the 80% threshold used above
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api.scrollTo(0, selectedOffset - 125 - ($nav.height() * .8), false);
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}
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}
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}
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