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Thomas, I’m mostly writing this to you. A couple weeks
ago I grabbed the latest SVN version of dragdrop.js because I needed the
auto-scroll functionality. I just fixed something in that script that wasn’t
working correctly and thought you might want to hear about it. You may have
already caught it since I grabbed the script but here it is anyway. In the updateDrag() function of the Draggable object, in the
“if (this.options.scroll) {}” block, you had a line that said var p
= Position.page(this.options.scroll). That was giving me problems when my page
was scrolled down at all. With the page scrolled down at all, the div with the
overflow scrollbar would scroll itself immediately upon a draggble within it
being dragged, instead of only when the draggable reached the bottom border of
the scrollable div. To fix this, I changed the Position.page to
Position.cumulativeOffset and commented out the 2 lines below it where you were
adding the scrollLeft and scrollTop values to the p[0] and p[1] values. Now it
works just fine. See the new updateDrag function below. Why were you using
Position.page? updateDrag: function(event, pointer) { if(!this.dragging) this.startDrag(event);
Position.prepare();
Droppables.show(pointer, this.element);
Draggables.notify('onDrag',
this, event); this.draw(pointer); if(this.options.change) this.options.change(this); if(this.options.scroll) {
//if(this.scrollInterval)
this.scroll();
this.stopScrolling();
//var p =
Position.page(this.options.scroll);
var p =
Position.cumulativeOffset(this.options.scroll);
//p[0] +=
this.options.scroll.scrollLeft;
//p[1] +=
this.options.scroll.scrollTop;
p.push(p[0]+this.options.scroll.offsetWidth);
p.push(p[1]+this.options.scroll.offsetHeight); var speed = [0,0];
if(pointer[0] <
(p[0]+this.options.scrollSensitivity))
speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
if(pointer[1] <
(p[1]+this.options.scrollSensitivity))
speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
if(pointer[0] >
(p[2]-this.options.scrollSensitivity))
speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
if(pointer[1] >
(p[3]-this.options.scrollSensitivity))
speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
this.startScrolling(speed); } // fix AppleWebKit rendering if(navigator.appVersion.indexOf('AppleWebKit')>0)
window.scrollBy(0,0);
Event.stop(event); }, Sincerely, Ryan Gahl Design Engineer Camtronics Medical Systems (an Emageon Company) 262-369-3251 The information transmitted in this electronic mail is intended only for the person or entity to which it is addressed and may contain confidential, proprietary, and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from all computers. |
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