[Dynapi-Help] Dragging + onmousedown +onmouseup?

[Gordan Bobic]

Hi!

I'm having a bit of a problem.

I'm trying to make my layers snap to a 10x10 grid for ease of use.

I'm already making the layers come to the foreground when they are
clicked (onmousedown).

Here's the code:

                <SCRIPT language        = \"JavaScript\">
                <!--
                        function bringToFront(obj)
                        {
                                var o;
                                var t;
                                var topZ = 0;

                                o = obj.parent.children;
                                for (var i = 0; i < o.length; i++)
                                {
                                        t = o[i].getZIndex();
                                        o[i].setZIndex(t - 1);
                                        if (t > topZ) topZ = t;
                                }
                                obj.setZIndex(t);
                        }

                        function snapToGrid(obj)
                        {
                                var Top;
                                var Left;

                                Top     = obj.top;
                                Top     = Top / 10;
                                Top     = int(Top);
                                Top     = Top * 10;

                                Left    = obj.left;
                                Left    = Left / 10;
                                Left    = int(Left);
                                Left    = Left * 10;

                                obj.moveTo(Left, Top);

                        }
                //-->
                </SCRIPT>

I have the event listener set up:

                                listener$DivID = new
EventListener(DynAPI.document);

                                listener$DivID.onmousedown =
function(e)
                                {
                                        bringToFront(div$DivID);
                                }

                                listener$DivID.onmouseup = function(e)
                                {
                                        snapToGrid(div$DivID);
                                }


div$DivID.addEventListener(listener$DivID);
                                DragEvent.enableDragEvents(div$DivID);

This is actually perl code that generated the pages (CGI), so $DivID
is an arbitrary name of the DIV block.

However for some reason, when I add the onmouseup even handler that
calls "snapToGrid(obj)", I am no longer able to "drop" the DIV. It
keeps the mouse movements even after I let go of the button. What is
going wrong, and is there a work-around?

Thanks!

Gordan



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