[WICKET-5869] Kittencaptcha doesn't calculate click y-coordinate correctly

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 6.14.0, 6.15.0, 6.16.0, 6.17.0, 6.18.0, 6.19.0
• Fix Version/s: 6.20.0, 7.0.0-M6
• Component/s: wicket-extensions
• Assignee: Martijn Dashorst
• Reporter: Martijn Dashorst
• Created: 01/Apr/15 15:20
• Updated: 01/Apr/15 15:32
• Resolved: 01/Apr/15 15:32

Description

In firefox the click event doesn't calculate the relative position of the click correctly.

In the block when the event doesn't have an offsetX/Y, the code should take into account all offsets of all offsetParents. The code below fixes this.

function getEventX(element, event) {
	var result;
	if (event.offsetX != null) {
		result = event.offsetX;
	} else {
		result = event.pageX;
		do {
			result = result - element.offsetLeft;
			element = element.offsetParent;
		} while (element != null)
	}
	return parseInt(result, 10);
}
function getEventY(element, event) {
	var result;
	if (event.offsetY != null) {
		result = event.offsetY;
	} else {
		result = event.pageY;
		do {
			result = result - element.offsetTop;
			element = element.offsetParent;
		} while (element != null)
	}
	return parseInt(result, 10);
}