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36 lines
856 B
CoffeeScript
36 lines
856 B
CoffeeScript
define [
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"base"
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], (App) ->
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App.directive "updateScrollBottomOn", ($timeout) ->
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return {
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restrict: "A"
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link: (scope, element, attrs, ctrls) ->
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# We keep the offset from the bottom fixed whenever the event fires
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#
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# ^ | ^
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# | | | scrollTop
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# | | v
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# | |-----------
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# | | ^
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# | | |
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# | | | clientHeight (viewable area)
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# | | |
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# | | |
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# | | v
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# | |-----------
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# | | ^
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# | | | scrollBottom
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# v | v
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# \
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# scrollHeight
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scrollBottom = 0
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element.on "scroll", (e) ->
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scrollBottom = element[0].scrollHeight - element[0].scrollTop - element[0].clientHeight
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scope.$on attrs.updateScrollBottomOn, () ->
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$timeout () ->
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element.scrollTop(element[0].scrollHeight - element[0].clientHeight - scrollBottom)
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, 0
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}
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