I have made a sortable list in jquery using the sortable property applied to a div that contains a series of unordered lists. This is for a mobile web app, so think small screen and other limitations such as people scrolling the page by dragging in the middle of it rather than using scrollbars. The list works great and you can sort via drag and drop. However, when there are more list items on the screen than the available viewing area, the user needs to scroll the page by dragging anywhere on the screen. But the user can't do that because everywhere he drags, he moves an item instead of scrolling the page because the items have essentially taken up all of the viewing area that otherwise would be scrollable.
I want to make the drag of a button, image, or just simply an area within each sortable item to cause the item to move. Anywhere else on the item that is dragged will cause the page to scroll. I know how to make the item itself move when you drag on it, but I have no idea whether you can make the whole item move by dragging on only a specific part of it. The sortable method just doesn't seem to have any parameters or any means of doing this that I can tell and I can't find anywhere where anybody has done this and posted a sample.
Has anybody else run into the problem? If so, what was the best idea or workaround for this potentially unsolvable problem?