Created
October 8, 2013 15:44
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Updated version of Angular ScrollSpy
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angular.module('jobFoundryDirectives').directive 'spy', ($location) -> | |
restrict: "A" | |
require: "^scrollSpy" | |
link: (scope, elem, attrs, scrollSpy) -> | |
attrs.spyClass ?= "current" | |
elem.click -> | |
scope.$apply -> | |
$location.hash(attrs.spy) | |
scrollSpy.addSpy | |
id: attrs.spy | |
in: -> elem.addClass attrs.spyClass, | |
out: -> elem.removeClass attrs.spyClass | |
angular.module('jobFoundryDirectives').directive 'scrollSpy', ($window) -> | |
restrict: 'A' | |
controller: ($scope) -> | |
$scope.spies = [] | |
@addSpy = (spyObj) -> $scope.spies.push spyObj | |
link: (scope, elem, attrs) -> | |
spyElems = [] | |
scope.$watch 'spies', (spies) -> | |
for spy in spies | |
unless spyElems[spy.id]? | |
spyElems[spy.id] = elem.find('#'+spy.id) | |
$($window).scroll -> | |
highlightSpy = null | |
for spy in scope.spies | |
spy.out() | |
# the elem might not have been available when it was originally cached, | |
# so we check again to get another element in case this one doesn't exist. | |
spyElems[spy.id] = | |
if spyElems[spy.id].length is 0 | |
elem.find('#'+spy.id) | |
else | |
spyElems[spy.id] | |
# the element could still not exist, so we check first to avoid errors | |
if spyElems[spy.id].length isnt 0 | |
if (pos = spyElems[spy.id].offset().top) - $window.scrollY <= 0 | |
spy.pos = pos | |
highlightSpy ?= spy | |
if highlightSpy.pos < spy.pos | |
highlightSpy = spy | |
highlightSpy?.in() |
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I did a JavaScript translation of this CoffeeScript and made a few updates. You can find the updates here: https://gist.github.com/EvilClosetMonkey/9194765
What changed:
spy
definition does not have an associated contentid
defined.spy
item if the browser is scrolled all the way to the bottom (content length sometimes prevent this from happening).active
to match Bootstrap's CSS.