Droppable: Expose hash for each tolerance mode

[TitAn]

change: $.ui.intersect is object with methods for each tolerance mode:

$.ui.intersect = function(draggable, droppable, toleranceMode) {

	if (!droppable.offset) return false;

	var x1 = (draggable.positionAbs || draggable.position.absolute).left, x2 = x1 + draggable.helperProportions.width,
		y1 = (draggable.positionAbs || draggable.position.absolute).top, y2 = y1 + draggable.helperProportions.height;
	var l = droppable.offset.left, r = l + droppable.proportions.width,
		t = droppable.offset.top, b = t + droppable.proportions.height;

	if ($.ui.intersect[toleranceMode]) {
		return $.ui.intersect[toleranceMode].call($.ui.intersect, draggable, droppable, x1, x2, y1, y2, l, r, t, b);
	} else return false;

};

$.extend($.ui.intersect, {

	fit : function(draggable, droppable, x1, x2, y1, y2, l, r, t, b) {
		return (l < x1 && x2 < r && t < y1 && y2 < b);
	},
......
}

You can add your tolerance mode:

$.extend($.ui.intersect, {
	yourToleranceModeFunction : function(draggable, droppable, x1, x2, y1, y2, l, r, t, b) {
		state = true;// or false or 'state'. if return string $.ui.ddmanager triggered event for that state: over+'state' and out+'state'
		return state;
	}
}

Changes in ui.droppable widget:

• overState property is added instead of private properties isover and isout
• _over and _out methods for generation of overstate events are changed
• _changeOverState method is added
• overState property added to ui object for possibility to check up an draggable object overstate on drop event

Changes in $.ui.ddmanager:

• reset overState for droppable objects in drop method
• inspect overState changes in drag method

​http://elsoft.tomsk.ru/jQuery/#intersect

[TitAn]

Changes in ui.droppable widget:

• overState property is added instead of private properties isover and isout
  
• _over and _out methods for generation of overstate events are changed
  
• _changeOverState method is added
  
• overState property added to ui object for possibility to check up an draggable object overstate on drop event
  

Changes in $.ui.ddmanager:

• reset overState for droppable objects in drop method
  
• inspect overState changes in drag method
  

Demo - ​http://elsoft.tomsk.ru/jQuery/#intersect

[Scott González]

This should be done in stages. We should first clean up the internal logic of droppable, then define the tolerance modes in a hash. Once that is done, we can consider the other changes proposed in this ticket.

[Scott González]

#11226 is a duplicate of this ticket.