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jsDD = {
arObjects: [],
arDestinations: [],
arContainers: [],
arContainersPos: [],
current_dest_index: false,
current_node: null,
wndSize: null,
bStarted: false,
bDisable: false,
bDisableDestRefresh: false,
Reset: function()
{
jsDD.arObjects = [];
jsDD.arDestinations = [];
jsDD.bStarted = false;
jsDD.current_node = null;
jsDD.current_dest_index = false;
jsDD.bDisableDestRefresh = false;
jsDD.bDisable = false;
jsDD.x = null;
jsDD.y = null;
jsDD.wndSize = null;
},
registerObject: function (obNode)
{
obNode.onmousedown = jsDD.startDrag;
obNode.__bxddid = jsDD.arObjects.length;
jsDD.arObjects[obNode.__bxddid] = obNode;
},
registerDest: function (obDest)
{
obDest.__bxddid = jsDD.arDestinations.length;
jsDD.arDestinations[obDest.__bxddid] = obDest;
jsDD.refreshDestArea(obDest.__bxddid);
},
registerContainer: function (obCont)
{
jsDD.arContainers[jsDD.arContainers.length] = obCont;
},
getContainersScrollPos: function(x, y)
{
var pos = {'left':0, 'top':0};
for(var i=0, n=jsDD.arContainers.length; i<n; i++)
{
if(jsDD.arContainers[i] && x >= jsDD.arContainersPos[i]["left"] && x <= jsDD.arContainersPos[i]["right"] && y >= jsDD.arContainersPos[i]["top"] && y <= jsDD.arContainersPos[i]["bottom"])
{
pos.left = jsDD.arContainers[i].scrollLeft;
pos.top = jsDD.arContainers[i].scrollTop;
}
}
return pos;
},
setContainersPos: function()
{
for(var i=0, n=jsDD.arContainers.length; i<n; i++)
{
if(jsDD.arContainers[i])
jsDD.arContainersPos[i] = jsUtils.GetRealPos(jsDD.arContainers[i]);
}
},
refreshDestArea: function(id)
{
if (typeof id == 'undefined')
{
for (var i = 0, cnt = jsDD.arDestinations.length; i < cnt; i++)
{
jsDD.refreshDestArea(i);
}
}
else
{
if (null == jsDD.arDestinations[id])
return;
if (window.getBoundingClientRect)
{
var wndSize = jsUtils.GetWindowScrollSize();
var arPos = jsDD.arDestinations[id].getBoundingClientRect();
arPos = {
left: arPos.left + wndSize.scrollLeft,
top: arPos.top + wndSize.scrollTop,
right: arPos.right + wndSize.scrollLeft,
bottom: arPos.bottom + wndSize.scrollTop
}
}
else
var arPos = jsUtils.GetRealPos(jsDD.arDestinations[id]);
jsDD.arDestinations[id].__bxpos = [arPos.left, arPos.top, arPos.right, arPos.bottom];
}
},
/* DD process */
startDrag: function(e)
{
if (jsDD.bDisable) return true;
if(!e)
e = window.event;
jsDD.current_node = null;
if (e.currentTarget)
{
jsDD.current_node = e.currentTarget;
if (null == jsDD.current_node || null == jsDD.current_node.__bxddid)
{
jsDD.current_node = null;
return;
}
}
else
{
jsDD.current_node = e.srcElement;
if (null == jsDD.current_node)
return;
while (null == jsDD.current_node.__bxddid)
{
jsDD.current_node = jsDD.current_node.parentNode;
if (jsDD.current_node.tagName == 'BODY')
return;
}
}
jsDD.bStarted = false;
jsDD.bPreStarted = true;
jsDD.wndSize = jsUtils.GetWindowSize();
document.onmouseup = jsDD.stopDrag;
jsUtils.addEvent(document, "mousemove", jsDD.drag);
if(document.body.setCapture)
document.body.setCapture();
jsDD.denySelection();
document.body.style.cursor = 'move';
if (!jsDD.bDisableDestRefresh)
jsDD.refreshDestArea();
jsDD.setContainersPos();
},
start: function()
{
if (jsDD.bDisable) return true;
if (jsDD.current_node.onbxdragstart)
jsDD.current_node.onbxdragstart();
for (var i = 0, cnt = jsDD.arDestinations.length; i < cnt; i++)
{
if (jsDD.arDestinations[i].onbxdestdragstart)
jsDD.arDestinations[i].onbxdestdragstart(jsDD.current_node);
}
jsDD.bStarted = true;
jsDD.bPreStarted = false;
},
drag: function(e)
{
if (jsDD.bDisable)
return true;
if (!jsDD.bStarted)
jsDD.start();
if(!e)
e = window.event;
jsDD.x = e.clientX + jsDD.wndSize.scrollLeft;
jsDD.y = e.clientY + jsDD.wndSize.scrollTop;
if (jsDD.current_node.onbxdrag)
{
jsDD.current_node.onbxdrag(jsDD.x, jsDD.y);
}
var containersScroll = jsDD.getContainersScrollPos(jsDD.x, jsDD.y);
var current_dest_index = jsDD.searchDest(jsDD.x+containersScroll.left, jsDD.y+containersScroll.top);
if (current_dest_index !== jsDD.current_dest_index)
{
if (jsDD.current_dest_index !== false)
{
if (jsDD.current_node.onbxdraghout)
jsDD.current_node.onbxdraghout(jsDD.arDestinations[jsDD.current_dest_index], jsDD.x, jsDD.y);
if (jsDD.arDestinations[jsDD.current_dest_index].onbxdestdraghout)
jsDD.arDestinations[jsDD.current_dest_index].onbxdestdraghout(jsDD.current_node, jsDD.x, jsDD.y);
}
if (current_dest_index !== false)
{
if (jsDD.current_node.onbxdraghover)
jsDD.current_node.onbxdraghover(jsDD.arDestinations[current_dest_index], jsDD.x, jsDD.y);
if (jsDD.arDestinations[current_dest_index].onbxdestdraghover)
jsDD.arDestinations[current_dest_index].onbxdestdraghover(jsDD.current_node, jsDD.x, jsDD.y);
}
}
jsDD.current_dest_index = current_dest_index;
},
stopDrag: function(e)
{
if(!e)
e = window.event;
jsDD.bPreStarted = false;
if (jsDD.bStarted)
{
jsDD.x = e.clientX + jsDD.wndSize.scrollLeft;
jsDD.y = e.clientY + jsDD.wndSize.scrollTop;
if (null != jsDD.current_node.onbxdragstop)
jsDD.current_node.onbxdragstop(jsDD.x, jsDD.y);
var containersScroll = jsDD.getContainersScrollPos(jsDD.x, jsDD.y);
var dest_index = jsDD.searchDest(jsDD.x+containersScroll.left, jsDD.y+containersScroll.top);
if (false !== dest_index)
{
if (null != jsDD.arDestinations[dest_index].onbxdestdragfinish)
{
if (!jsDD.arDestinations[dest_index].onbxdestdragfinish(jsDD.current_node, jsDD.x, jsDD.y, e))
dest_index = false;
else
{
if (null != jsDD.current_node.onbxdragfinish)
jsDD.current_node.onbxdragfinish(jsDD.arDestinations[dest_index], jsDD.x, jsDD.y);
}
}
}
if (false === dest_index)
{
if (null != jsDD.current_node.onbxdragrelease)
jsDD.current_node.onbxdragrelease(jsDD.x, jsDD.y);
}
else
{
for (var i = 0, cnt = jsDD.arDestinations.length; i < cnt; i++)
{
if (i != dest_index && null != jsDD.arDestinations[i].onbxdestdragrelease)
jsDD.arDestinations[i].onbxdestdragrelease(jsDD.current_node, jsDD.x, jsDD.y);
}
}
for (var i = 0, cnt = jsDD.arDestinations.length; i < cnt; i++)
{
if (null != jsDD.arDestinations[i].onbxdestdragstop)
jsDD.arDestinations[i].onbxdestdragstop(jsDD.current_node, jsDD.x, jsDD.y);
}
}
if(document.body.releaseCapture)
document.body.releaseCapture();
jsUtils.removeEvent(document, "mousemove", jsDD.drag);
document.onmouseup = null;
jsDD.allowSelection();
document.body.style.cursor = '';
jsDD.current_node = null;
if (jsDD.bStarted && !jsDD.bDisableDestRefresh)
jsDD.refreshDestArea();
jsDD.bStarted = false;
},
searchDest: function(x, y)
{
for (var i = 0, len = jsDD.arDestinations.length; i < len; i++)
{
if (
jsDD.arDestinations[i].__bxpos[0] <= x &&
jsDD.arDestinations[i].__bxpos[2] >= x &&
jsDD.arDestinations[i].__bxpos[1] <= y &&
jsDD.arDestinations[i].__bxpos[3] >= y
)
{
return i;
}
}
return false;
},
allowSelection: function()
{
document.onmousedown = null;
var b = document.body;
b.ondrag = null;
b.onselectstart = null;
b.style.MozUserSelect = '';
if (jsDD.current_node)
{
jsDD.current_node.ondrag = null;
jsDD.current_node.onselectstart = null;
jsDD.current_node.style.MozUserSelect = '';
}
},
denySelection: function()
{
document.onmousedown = jsUtils.False;
var b = document.body;
b.ondrag = jsUtils.False;
b.onselectstart = jsUtils.False;
b.style.MozUserSelect = 'none';
if (jsDD.current_node)
{
jsDD.current_node.ondrag = jsUtils.False;
jsDD.current_node.onselectstart = jsUtils.False;
jsDD.current_node.style.MozUserSelect = 'none';
}
},
Disable: function() {jsDD.bDisable = true;},
Enable: function() {jsDD.bDisable = false;}
}