jQuery UI Draggable issue with containment option -


i'm trying have image inside div of same width draggable in limit of div. it's difficult explain 1 side of image (top or bottom) can leave div cannot have gap between edge of image , border of div.

to resume image has same width of parent div height bigger part of image hidden.

well here want do: http://jsfiddle.net/maxwell2022/derna/165/

it's working perfectly... because there nothing above div. if there gap between document , div, it's not working anymore. think draggable taking document reference top of image. start dragging image, image move , stuck top edge top of document:

http://jsfiddle.net/maxwell2022/derna/164/

i don't know how can achieve containment option. cheers,

maxime

update

another attempt relative positioning no luck: http://jsfiddle.net/maxwell2022/derna/166/

i found solution fix getting top position of parent div using offset() , add containment boundary. i'm not sure it's best solution looks it's working.

i have difference of 1% in offset @ top quite annoying: if drag image , make stick top as possible returns 99% offset instead of 100% (see result in console).

the bottom 1 correct (0%). think it's due rounding size i'm not sure. here jsfiddle: http://jsfiddle.net/maxwell2022/derna/167/

if have better idea please, please, let me know.

thanks, maxime


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