redrawPosition : function()

in web_tool/js/jscolor.js [410:465]

• 47 lines of code
• 18 McCabe index (conditional complexity)

	redrawPosition : function () {

		if (jsc.picker && jsc.picker.owner) {
			var thisObj = jsc.picker.owner;

			var tp, vp;

			if (thisObj.fixed) {
				// Fixed elements are positioned relative to viewport,
				// therefore we can ignore the scroll offset
				tp = jsc.getElementPos(thisObj.targetElement, true); // target pos
				vp = [0, 0]; // view pos
			} else {
				tp = jsc.getElementPos(thisObj.targetElement); // target pos
				vp = jsc.getViewPos(); // view pos
			}

			var ts = jsc.getElementSize(thisObj.targetElement); // target size
			var vs = jsc.getViewSize(); // view size
			var ps = jsc.getPickerOuterDims(thisObj); // picker size
			var a, b, c;
			switch (thisObj.position.toLowerCase()) {
				case 'left': a=1; b=0; c=-1; break;
				case 'right':a=1; b=0; c=1; break;
				case 'top':  a=0; b=1; c=-1; break;
				default:     a=0; b=1; c=1; break;
			}
			var l = (ts[b]+ps[b])/2;

			// compute picker position
			if (!thisObj.smartPosition) {
				var pp = [
					tp[a],
					tp[b]+ts[b]-l+l*c
				];
			} else {
				var pp = [
					-vp[a]+tp[a]+ps[a] > vs[a] ?
						(-vp[a]+tp[a]+ts[a]/2 > vs[a]/2 && tp[a]+ts[a]-ps[a] >= 0 ? tp[a]+ts[a]-ps[a] : tp[a]) :
						tp[a],
					-vp[b]+tp[b]+ts[b]+ps[b]-l+l*c > vs[b] ?
						(-vp[b]+tp[b]+ts[b]/2 > vs[b]/2 && tp[b]+ts[b]-l-l*c >= 0 ? tp[b]+ts[b]-l-l*c : tp[b]+ts[b]-l+l*c) :
						(tp[b]+ts[b]-l+l*c >= 0 ? tp[b]+ts[b]-l+l*c : tp[b]+ts[b]-l-l*c)
				];
			}

			var x = pp[a];
			var y = pp[b];
			var positionValue = thisObj.fixed ? 'fixed' : 'absolute';
			var contractShadow =
				(pp[0] + ps[0] > tp[0] || pp[0] < tp[0] + ts[0]) &&
				(pp[1] + ps[1] < tp[1] + ts[1]);

			jsc._drawPosition(thisObj, x, y, positionValue, contractShadow);
		}
	},