Method calculateViewport

src/container.ts:104–115

()

        var calculateViewportI;
        function calculateViewport() {
            self.viewportTop = scrollTop(item);
            self.viewportBottom = self.viewportTop + self.viewportHeight;
            self.documentHeight = getContentHeight(item);
            if (self.documentHeight !== previousDocumentHeight) {
                calculateViewportI = self.watchers.length;
                while (calculateViewportI--) {
                    self.watchers[calculateViewportI].recalculateLocation();
                }
                previousDocumentHeight = self.documentHeight;
            }
        }

        var updateAndTriggerWatchersI;
        function updateAndTriggerWatchers() {