in core/src/main/resources/org/apache/karaf/webconsole/core/behavior/dracula/dracula_graph.js [171:190]
d.onmousemove = function (e) {
e = e || window.event;
if (selfRef.isDrag) {
var bBox = selfRef.isDrag.set.getBBox();
// TODO round the coordinates here (eg. for proper image representation)
var newX = e.clientX - selfRef.isDrag.dx + (bBox.x + bBox.width / 2);
var newY = e.clientY - selfRef.isDrag.dy + (bBox.y + bBox.height / 2);
/* prevent shapes from being dragged out of the canvas */
var clientX = e.clientX - (newX < 20 ? newX - 20 : newX > selfRef.width - 20 ? newX - selfRef.width + 20 : 0);
var clientY = e.clientY - (newY < 20 ? newY - 20 : newY > selfRef.height - 20 ? newY - selfRef.height + 20 : 0);
selfRef.isDrag.set.translate(clientX - Math.round(selfRef.isDrag.dx), clientY - Math.round(selfRef.isDrag.dy));
// console.log(clientX - Math.round(selfRef.isDrag.dx), clientY - Math.round(selfRef.isDrag.dy));
for (var i in selfRef.graph.edges) {
selfRef.graph.edges[i].connection && selfRef.graph.edges[i].connection.draw();
}
//selfRef.r.safari();
selfRef.isDrag.dx = clientX;
selfRef.isDrag.dy = clientY;
}
};