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ToolMan._coordinatesFactory.inside = function(item,container) {
var iTL = this.topLeftOffset(item);
var iBR = this.bottomRightOffset(item);
var cTL = this.topLeftOffset(container);
var cBR = this.bottomRightOffset(container);
return (iTL.x >= cTL.x && iTL.x <= cBR.x && iTL.y >= cTL.y && iTL.y <= cBR.y)
|| (iBR.x >= cTL.x && iBR.x <= cBR.x && iBR.y >= cTL.y && iBR.y <= cBR.y);
}
ToolMan._dragdropFactory = {
firstContainer: null,
lastContainer: null,
makeDragable: function(item) {
var group = ToolMan.drag().createSimpleGroup(item);
group.register('dragstart',this._onDragStart);
group.register('dragmove', this._onDragMove);
group.register('dragend', this._onDragEnd);
item.isOutside = false;
item.started = false;
return group;
},
makeListContainer: function(list,name) {
// each container becomes a linked list node
if (this.firstContainer == null) {
this.firstContainer = this.lastContainer = list;
list.previousContainer = null;
list.nextContainer = null;
} else {
list.previousContainer = this.lastContainer;
list.nextContainer = null;
this.lastContainer.nextContainer = list;
this.lastContainer = list;
}
var helpers = ToolMan.helpers();
var coordinates = ToolMan.coordinates();
//var children = list.childNodes;
var items = new Array();
for (var i=0; i<list.childNodes.length; i++) {
if (list.childNodes[i].nodeType == 1 &&
list.childNodes[i].nodeName.toLowerCase() == name.toLowerCase()) {
items.push(list.childNodes[i]);
}
}
// these functions are called when an item is draged over
// a container or out of a container bounds. onDragOut
// is also called when the drag ends with an item having
// been added to the container
list.onDragOver = new Function();
list.onDragOut = new Function();
list.onDragEnd = new Function();
if (list.factory == undefined) {
list.factory = false;
}
var This = this;
helpers.map(items, function(item) {
var dragGroup = This.makeDragable(item);
dragGroup.setThreshold(4);
});
for (var i = 2, n = arguments.length; i < n; i++) {
helpers.map(items, arguments[i]);
}
},
_onDragStart: function(dragEvent) {
var container = ToolMan._dragdropFactory.firstContainer;
var item = dragEvent.group.element;
var coordinates = ToolMan.coordinates();
// Factory is a sort of assembly pieces, we want to keep them
if (item.parentNode.factory) {
var origin = item.cloneNode(true);
item.parentNode.insertBefore(origin,item.nextSibling);
ToolMan._dragdropFactory.makeDragable(origin);
}
while (container != null) {
container.topLeft = coordinates.topLeftOffset(container);
container.bottomRight = coordinates.bottomRightOffset(container);
container = container.nextContainer;
}
// item starts out over current parent
item.started = true;
item.parentNode.onDragOver();
},
_onDragMove: function(dragEvent) {
var helpers = ToolMan.helpers();
var coordinates = ToolMan.coordinates();
var item = dragEvent.group.element;
var xmouse = dragEvent.transformedMouseOffset;
var moveTo = null;
// Check if we are nowhere
if (item.isOutside) {
var container = ToolMan._dragdropFactory.firstContainer;
while (container != null) {
if (coordinates.inside(item,container) && !container.factory) {
container.onDragOver();
item.isOutside = false;
// since isOutside was true, the current parent is a
// temporary clone of some previous container node and
// it needs to be removed from the document
var tempParent = item.parentNode;
tempParent.removeChild(item);
container.appendChild(item);
//tempParent.parentNode.removeChild(tempParent);
break;
}
container = container.nextContainer;
}
if (this.isOutside) {
return;
}
}
// Outside the parent node
else if (!coordinates.inside(item,item.parentNode)) {
item.parentNode.onDragOut();
item.isOutside = true;
var container = ToolMan._dragdropFactory.firstContainer;
while (container != null) {
if (coordinates.inside(item,container) && !container.factory) {
container.onDragOver();
item.isOutside = false;
container.appendChild(item);
break;
}
container = container.nextContainer;
}
// if we're not in any container now, make a temporary clone of
// the previous container node and add it to the document
if (this.isOutside) {
var tempParent = item.parentNode.cloneNode(false);
item.parentNode.removeChild(item);
tempParent.appendChild(item);
document.body.appendChild(tempParent);
return;
}
}
// if we get here, we're inside some container bounds, so we do
// everything the original dragsort script did to swap us into the
// correct position
if (item.parentNode.factory) {
return;
}
var moveTo = null
var previous = helpers.previousItem(item, item.nodeName)
while (previous != null) {
var bottomRight = coordinates.bottomRightOffset(previous)
if (xmouse.y <= bottomRight.y && xmouse.x <= bottomRight.x) {
moveTo = previous
}
previous = helpers.previousItem(previous, item.nodeName)
}
if (moveTo != null) {
helpers.moveBefore(item, moveTo)
return
}
var next = helpers.nextItem(item, item.nodeName)
while (next != null) {
var topLeft = coordinates.topLeftOffset(next)
if (topLeft.y <= xmouse.y && topLeft.x <= xmouse.x) {
moveTo = next
}
next = helpers.nextItem(next, item.nodeName)
}
if (moveTo != null) {
helpers.moveBefore(item, helpers.nextItem(moveTo, item.nodeName))
return
}
},
_onDragEnd: function(dragEvent) {
var item = dragEvent.group.element;
if (!item.started) {
return;
}
if (item.isOutside || item.parentNode.factory) {
item.parentNode.removeChild(item);
return;
}
item.parentNode.onDragEnd.call(item);
ToolMan.coordinates().create(0, 0).reposition(dragEvent.group.element);
}
};
ToolMan.dragdrop = function() {
return ToolMan._dragdropFactory;
};