protected void addTouchHandlers() {
TouchStartHandler touchStartHandler =
new TouchStartHandler() {
@Override
public void onTouchStart(TouchStartEvent event) {
event.stopPropagation();
event.preventDefault();
mouseDown(event);
}
};
canvas.addTouchStartHandler(touchStartHandler);
TouchMoveHandler touchMoveHandler =
new TouchMoveHandler() {
@Override
public void onTouchMove(TouchMoveEvent event) {
if (isMouseDown) {
event.stopPropagation();
event.preventDefault();
mouseMove(event);
}
}
};
canvas.addTouchMoveHandler(touchMoveHandler);
TouchEndHandler touchEndHandler =
new TouchEndHandler() {
@Override
public void onTouchEnd(TouchEndEvent event) {
if (isMouseDown) {
event.stopPropagation();
event.preventDefault();
mouseUp(event);
}
}
};
canvas.addTouchEndHandler(touchEndHandler);
}
