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Draggable: Check for grid elements set to 0 to prevent divide by 0 er…

…ror causing invalid argument errors in IE. Fixed #6950 - ie 8 invalid drag and drop error
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commit d136e4333e117b33aa16eb9a3a5831a25b1a2dd9 1 parent 1845015
@kborchers kborchers authored
Showing with 3 additions and 2 deletions.
  1. +3 −2 ui/jquery.ui.draggable.js
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5 ui/jquery.ui.draggable.js
@@ -436,10 +436,11 @@ $.widget("ui.draggable", $.ui.mouse, {
}
if(o.grid) {
- var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];
+ //Check for grid elements set to 0 to prevent divide by 0 error causing invalid argument errors in IE (see ticket #6950)
+ var top = o.grid[1] ? this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1] : this.originalPageY;
pageY = containment ? (!(top - this.offset.click.top < containment[1] || top - this.offset.click.top > containment[3]) ? top : (!(top - this.offset.click.top < containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;
- var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];
+ var left = o.grid[0] ? this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0] : this.originalPageX;
pageX = containment ? (!(left - this.offset.click.left < containment[0] || left - this.offset.click.left > containment[2]) ? left : (!(left - this.offset.click.left < containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
}
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