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throttle scrolling events (#243)

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Athou
2013-06-04 05:31:13 +02:00
parent 3c5dfc2d89
commit 48fddc5ed1
3 changed files with 54 additions and 9 deletions
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18
src/main/webapp/js/directives.js
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@@ -103,15 +103,15 @@ module.directive('onScrollMiddle', function() {
w.data.scrollPosition = d.scrollTop();
w.data.scrollDirection = 'down';
if (!w.data.scrollInit) {
w.bind('scroll',
function(e) {
var scroll = d.scrollTop();
w.data.scrollDirection = (scroll
- w.data.scrollPosition > 0) ? 'down'
: 'up';
w.data.scrollPosition = scroll;
scope.$apply();
});
var onScroll = function(e) {
var scroll = d.scrollTop();
w.data.scrollDirection = (scroll
- w.data.scrollPosition > 0) ? 'down'
: 'up';
w.data.scrollPosition = scroll;
scope.$apply();
};
w.bind('scroll', _.throttle(onScroll, 500));
w.data.scrollInit = true;
}
scope.$watch(down, function downCallback(value, oldValue) {