refresh: function()

in harness/app-assets/templates/assets/js/components/iscroll.js [1822:1905]
70 lines of code
31 McCabe index (conditional complexity)

	refresh: function () {
		this.transitionTime();

		if ( this.options.listenX && !this.options.listenY ) {
			this.indicatorStyle.display = this.scroller.hasHorizontalScroll ? 'block' : 'none';
		} else if ( this.options.listenY && !this.options.listenX ) {
			this.indicatorStyle.display = this.scroller.hasVerticalScroll ? 'block' : 'none';
		} else {
			this.indicatorStyle.display = this.scroller.hasHorizontalScroll || this.scroller.hasVerticalScroll ? 'block' : 'none';
		}

		if ( this.scroller.hasHorizontalScroll && this.scroller.hasVerticalScroll ) {
			utils.addClass(this.wrapper, 'iScrollBothScrollbars');
			utils.removeClass(this.wrapper, 'iScrollLoneScrollbar');

			if ( this.options.defaultScrollbars && this.options.customStyle ) {
				if ( this.options.listenX ) {
					this.wrapper.style.right = '8px';
				} else {
					this.wrapper.style.bottom = '8px';
				}
			}
		} else {
			utils.removeClass(this.wrapper, 'iScrollBothScrollbars');
			utils.addClass(this.wrapper, 'iScrollLoneScrollbar');

			if ( this.options.defaultScrollbars && this.options.customStyle ) {
				if ( this.options.listenX ) {
					this.wrapper.style.right = '2px';
				} else {
					this.wrapper.style.bottom = '2px';
				}
			}
		}

		var r = this.wrapper.offsetHeight;	// force refresh

		if ( this.options.listenX ) {
			this.wrapperWidth = this.wrapper.clientWidth;
			if ( this.options.resize ) {
				this.indicatorWidth = Math.max(Math.round(this.wrapperWidth * this.wrapperWidth / (this.scroller.scrollerWidth || this.wrapperWidth || 1)), 8);
				this.indicatorStyle.width = this.indicatorWidth + 'px';
			} else {
				this.indicatorWidth = this.indicator.clientWidth;
			}

			this.maxPosX = this.wrapperWidth - this.indicatorWidth;

			if ( this.options.shrink == 'clip' ) {
				this.minBoundaryX = -this.indicatorWidth + 8;
				this.maxBoundaryX = this.wrapperWidth - 8;
			} else {
				this.minBoundaryX = 0;
				this.maxBoundaryX = this.maxPosX;
			}

			this.sizeRatioX = this.options.speedRatioX || (this.scroller.maxScrollX && (this.maxPosX / this.scroller.maxScrollX));	
		}

		if ( this.options.listenY ) {
			this.wrapperHeight = this.wrapper.clientHeight;
			if ( this.options.resize ) {
				this.indicatorHeight = Math.max(Math.round(this.wrapperHeight * this.wrapperHeight / (this.scroller.scrollerHeight || this.wrapperHeight || 1)), 8);
				this.indicatorStyle.height = this.indicatorHeight + 'px';
			} else {
				this.indicatorHeight = this.indicator.clientHeight;
			}

			this.maxPosY = this.wrapperHeight - this.indicatorHeight;

			if ( this.options.shrink == 'clip' ) {
				this.minBoundaryY = -this.indicatorHeight + 8;
				this.maxBoundaryY = this.wrapperHeight - 8;
			} else {
				this.minBoundaryY = 0;
				this.maxBoundaryY = this.maxPosY;
			}

			this.maxPosY = this.wrapperHeight - this.indicatorHeight;
			this.sizeRatioY = this.options.speedRatioY || (this.scroller.maxScrollY && (this.maxPosY / this.scroller.maxScrollY));
		}

		this.updatePosition();
	},