diff options
Diffstat (limited to 'content_scripts/scroller.coffee')
| -rw-r--r-- | content_scripts/scroller.coffee | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/content_scripts/scroller.coffee b/content_scripts/scroller.coffee index f83d0e87..7b46bab0 100644 --- a/content_scripts/scroller.coffee +++ b/content_scripts/scroller.coffee @@ -77,12 +77,14 @@ doesScroll = (element, direction, amount, factor) -> delta = getSign delta # 1 or -1 performScroll(element, direction, delta) and performScroll(element, direction, -delta) +isScrollableElement = (element, direction = "y", amount = 1, factor = 1) -> + doesScroll(element, direction, amount, factor) and shouldScroll element, direction + # From element and its parents, find the first which we should scroll and which does scroll. findScrollableElement = (element, direction, amount, factor) -> - while element != document.body and - not (doesScroll(element, direction, amount, factor) and shouldScroll(element, direction)) - element = (DomUtils.getContainingElement element) ? document.body - if element == document.body then firstScrollableElement element else element + while element != document.body and not isScrollableElement element, direction, amount, factor + element = DomUtils.getContainingElement(element) ? document.body + element # On some pages, document.body is not scrollable. Here, we search the document for the largest visible # element which does scroll vertically. This is used to initialize activatedElement. See #1358. @@ -257,6 +259,9 @@ Scroller = amount = getDimension(element,direction,pos) - element[scrollProperties[direction].axisName] CoreScroller.scroll element, direction, amount + isScrollableElement: (element) -> + isScrollableElement element + # Scroll the top, bottom, left and right of element into view. The is used by visual mode to ensure the # focus remains visible. scrollIntoView: (element) -> |