gistfile1.txt

app.directive('infiniteScroll', [
    '$rootScope', '$window', '$timeout', function($rootScope, $window, $timeout) {
        return {
            link: function(scope, elem, attrs) {
                var checkWhenEnabled, handler, primer, primed, scrollDistance, scrollEnabled;
                $window = angular.element(Scrollparent(elem.get(0)))

                scrollDistance = 0;
                if (attrs.infiniteScrollDistance != null) {
                    scope.$watch(attrs.infiniteScrollDistance, function(value) {
                        return scrollDistance = parseInt(value, 10);
                    });
                }
                scrollEnabled = true;
                checkWhenEnabled = false;
                if (attrs.infiniteScrollDisabled != null) {
                    scope.$watch(attrs.infiniteScrollDisabled, function(value) {
                        scrollEnabled = !value;
                        if (scrollEnabled && checkWhenEnabled) {
                            checkWhenEnabled = false;
                            return handler();
                        }
                    });
                }
                primed = false;
                handler = function() {
                    var elementBottom, remaining, shouldScroll, windowBottom;

                    var windowHeight =  $window.height();
                    windowBottom = windowHeight + $window.scrollTop();
                    elementBottom = elem.offset().top + elem.height();
                    remaining = elementBottom - windowBottom;
                    shouldScroll = remaining <= windowHeight * scrollDistance;
                    if (shouldScroll && scrollEnabled) {
                        if ($rootScope.$$phase) {
                            primed |= scope.$eval(attrs.infiniteScroll);
                        } else {
                            primed |= scope.$apply(attrs.infiniteScroll);
                        }
                    } else if (shouldScroll) {
                        checkWhenEnabled = true;
                    } else {
                        primed = true;
                    }
                };
                primer = function() {
                    if( !primed ) {
                        handler();
                        if( !primed ) {
                            return $timeout(primer, 0);
                        }
                    }
                }
                $window.on('scroll', handler);
                scope.$on('$destroy', function() {
                    primed = true;
                    return $window.off('scroll', handler);
                });
                return $timeout((function() {
                    if (attrs.infiniteScrollImmediateCheck) {
                        if (scope.$eval(attrs.infiniteScrollImmediateCheck)) {
                            return primer();
                        }
                    } else {
                        return primer();
                    }
                }), 0);
            }
        };
    }
]);