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Clamp mouseclick coordinates to target element bounds

This commit is contained in:
jalf 2013-01-29 17:06:03 +01:00
parent 49d5cee91e
commit 8a147535de
1 changed files with 3 additions and 1 deletions
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4
include/util.js
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@ -298,7 +298,9 @@ Util.getEventPosition = function (e, obj, scale) {
if (typeof scale === "undefined") { if (typeof scale === "undefined") {
scale = 1; scale = 1;
} }
return {'x': (docX - pos.x) / scale, 'y': (docY - pos.y) / scale}; var x = Math.max(Math.min(docX - pos.x, obj.width-1), 0);
var y = Math.max(Math.min(docY - pos.y, obj.height-1), 0);
return {'x': x / scale, 'y': y / scale};
}; };