- var x, y;
- var el = event.target || event.srcElement;
- var reference = fb.wheel;
-
- if (typeof event.offsetX != 'undefined') {
- // Use offset coordinates and find common offsetParent
- var pos = { x: event.offsetX, y: event.offsetY };
-
- // Send the coordinates upwards through the offsetParent chain.
- var e = el;
- while (e) {
- e.mouseX = pos.x;
- e.mouseY = pos.y;
- pos.x += e.offsetLeft;
- pos.y += e.offsetTop;
- e = e.offsetParent;
- }
-
- // Look for the coordinates starting from the wheel widget.
- var e = reference;
- var offset = { x: 0, y: 0 }
- while (e) {
- if (typeof e.mouseX != 'undefined') {
- x = e.mouseX - offset.x;
- y = e.mouseY - offset.y;
- break;
- }
- offset.x += e.offsetLeft;
- offset.y += e.offsetTop;
- e = e.offsetParent;
- }
-
- // Reset stored coordinates
- e = el;
- while (e) {
- e.mouseX = undefined;
- e.mouseY = undefined;
- e = e.offsetParent;
- }
- }
- else {
- // Use absolute coordinates
- var pos = fb.absolutePosition(reference);
- x = (event.pageX || 0*(event.clientX + jQuery('html').get(0).scrollLeft)) - pos.x;
- y = (event.pageY || 0*(event.clientY + jQuery('html').get(0).scrollTop)) - pos.y;
- }
- // Subtract distance to middle
- return { x: x - fb.width / 2, y: y - fb.width / 2 };
- }
+ var offset = $(fb.wheel).offset();
+ return { x: (event.pageX - offset.left) - fb.width / 2, y: (event.pageY - offset.top) - fb.width / 2 };
+ };