vBulletin.add_event("vBmenuShow");
vBulletin.add_event("vBmenuHide");

function vB_Popup_Handler()
{
	
	this.open_steps = 10;
	this.open_fade = false;

	this.active = false;

	this.menus = new Array();
	this.activemenu = null;

	this.hidden_selects = new Array();
};

vB_Popup_Handler.prototype.activate = function(active)
{
	this.active = active;
};
vB_Popup_Handler.prototype.register = function(controlkey, noimage, noslide)
{
	this.menus[controlkey] = new vB_Popup_Menu(controlkey, noimage, noslide);

	return this.menus[controlkey];
};

vB_Popup_Handler.prototype.hide = function()
{
	if (this.activemenu != null)
	{
		//this.activemenu.hide();
		this.menus[this.activemenu].hide();
	}
};

var vBmenu = new vB_Popup_Handler();

function vbmenu_hide(e)
{
	if (e && e.button && e.button != 1 && e.type == 'click')
	{
		return true;
	}
	else
	{
		vBmenu.hide();
	}
};

function vB_Popup_Menu(controlkey, noimage, noslide)
{
	this.controlkey = controlkey;
	this.menuname = this.controlkey.split('.')[0] + '_menu';

	this.init_control(noimage);

	if (fetch_object(this.menuname))
	{
		this.init_menu();
	}

	this.slide_open = ((is_opera || noslide) ? false : true);
	this.open_steps = vBmenu.open_steps;

	vBulletin.add_event("vBmenuShow_" + this.controlkey);
	vBulletin.add_event("vBmenuHide_" + this.controlkey);
};


vB_Popup_Menu.prototype.init_control = function(noimage)
{
	this.controlobj = fetch_object(this.controlkey);
	this.controlobj.state = false;

	if (this.controlobj.firstChild && (this.controlobj.firstChild.tagName == 'TEXTAREA' || this.controlobj.firstChild.tagName == 'INPUT'))
	{
		// do nothing
	}
	else
	{
		if (!noimage && !(is_mac && is_ie))
		{
			var space = document.createTextNode(' ');
			this.controlobj.appendChild(space);

			var img = document.createElement('img');
			img.src = IMGDIR_MISC + '/menu_open.gif';
			img.border = 0;
			img.title = '';
			img.alt = '';
			this.controlobj.appendChild(img);
		}

		this.controlobj.unselectable = true;
		if (!noimage)
		{
			this.controlobj.style.cursor = pointer_cursor;
		}
		this.controlobj.onclick = vB_Popup_Events.prototype.controlobj_onclick;
		this.controlobj.onmouseover = vB_Popup_Events.prototype.controlobj_onmouseover;
	}
};

vB_Popup_Menu.prototype.init_menu = function()
{
	this.menuobj = fetch_object(this.menuname);

	if (this.menuobj && !this.menuobj.initialized)
	{
		this.menuobj.initialized = true;
		this.menuobj.onclick = e_by_gum;
		this.menuobj.style.position = 'absolute';
		this.menuobj.style.zIndex = 50;

		// init popup filters (ie only)
		if (is_ie && !is_mac)
		{
			this.menuobj.style.filter += "progid:DXImageTransform.Microsoft.alpha(enabled=1,opacity=100)";
			this.menuobj.style.filter += "progid:DXImageTransform.Microsoft.shadow(direction=135,color=#8E8E8E,strength=3)";
		}

		this.init_menu_contents();
	}
};

vB_Popup_Menu.prototype.init_menu_contents = function()
{
	var tds = fetch_tags(this.menuobj, 'td');
	for (var i = 0; i < tds.length; i++)
	{
		if (tds[i].className == 'vbmenu_option')
		{
			if (tds[i].title && tds[i].title == 'nohilite')
			{
				// not an active cell
				tds[i].title = '';
			}
			else
			{
				// create a reference back to the menu class
				tds[i].controlkey = this.controlkey;

				// handle mouseover / mouseout highlighting events
				tds[i].onmouseover = vB_Popup_Events.prototype.menuoption_onmouseover;
				tds[i].onmouseout = vB_Popup_Events.prototype.menuoption_onmouseout;

				var links = fetch_tags(tds[i], 'a');
				if (links.length == 1)
				{

					tds[i].className = tds[i].className + ' vbmenu_option_alink';
					tds[i].islink = true;

					var linkobj = links[0];
					var remove_link = false;

					tds[i].target = linkobj.getAttribute('target');

					if (typeof linkobj.onclick == 'function')
					{
						tds[i].ofunc = linkobj.onclick;
						tds[i].onclick = vB_Popup_Events.prototype.menuoption_onclick_function;
						remove_link = true;
					}
					else if (typeof tds[i].onclick == 'function')
					{
						tds[i].ofunc = tds[i].onclick;
						tds[i].onclick = vB_Popup_Events.prototype.menuoption_onclick_function;
						remove_link = true;
					}
					else
					{
						tds[i].href = linkobj.href;
						tds[i].onclick = vB_Popup_Events.prototype.menuoption_onclick_link;
					}

					if (remove_link)
					{
						var newlink = document.createElement('a');
						newlink.innerHTML = linkobj.innerHTML;
						newlink.href = '#';
						newlink.onclick = function(e) { e = e ? e : window.event; e.returnValue = false; return false; };
						tds[i].insertBefore(newlink, linkobj);
						tds[i].removeChild(linkobj);
					}
				}
				else if (typeof tds[i].onclick == 'function')
				{
					tds[i].ofunc = tds[i].onclick;
					tds[i].onclick = vB_Popup_Events.prototype.menuoption_onclick_function;
				}
			}
		}
	}
};


vB_Popup_Menu.prototype.show = function(obj, instant)
{
	if (!vBmenu.active)
	{
		return false;
	}
	else if (!this.menuobj)
	{
		this.init_menu();
	}

	if (!this.menuobj)
	{
		return false;
	}

	if (vBmenu.activemenu != null)
	{
		vBmenu.menus[vBmenu.activemenu].hide();
	}

	vBmenu.activemenu = this.controlkey;

	this.menuobj.style.display = '';
	if (this.slide_open)
	{
		this.menuobj.style.clip = 'rect(auto, 0px, 0px, auto)';
	}

	this.set_menu_position(obj);

	if (!instant && this.slide_open)
	{
		this.intervalX = Math.ceil(this.menuobj.offsetWidth / this.open_steps);
		this.intervalY = Math.ceil(this.menuobj.offsetHeight / this.open_steps);
		this.slide((this.direction == 'left' ? 0 : this.menuobj.offsetWidth), 0, 0);
	}
	else if (this.menuobj.style.clip && this.slide_open)
	{
		this.menuobj.style.clip = 'rect(auto, auto, auto, auto)';
	}

	// deal with IE putting <select> elements on top of everything
	this.handle_overlaps(true);

	if (this.controlobj.editorid)
	{
		this.controlobj.state = true;
		//this.controlobj.editor.menu_context(this.controlobj, 'mousedown');
		vB_Editor[this.controlobj.editorid].menu_context(this.controlobj, 'mousedown');
	}

	vBulletin.events["vBmenuShow_" + this.controlkey].fire(this.controlkey);
	vBulletin.events.vBmenuShow.fire(this.controlkey);
};
vB_Popup_Menu.prototype.set_menu_position = function(obj)
{
	this.pos = this.fetch_offset(obj);
	this.leftpx = this.pos['left'];
	this.toppx = this.pos['top'] + obj.offsetHeight;

	if ((this.leftpx + this.menuobj.offsetWidth) >= document.body.clientWidth && (this.leftpx + obj.offsetWidth - this.menuobj.offsetWidth) > 0)
	{
		this.leftpx = this.leftpx + obj.offsetWidth - this.menuobj.offsetWidth;
		this.direction = 'right';
		left=eval(this.leftpx)+30;
	}
	else
	{
		this.direction = 'left'
		left=eval(this.leftpx)-70;
	}
	//left=eval(this.leftpx)-70;
	//left=eval(this.leftpx);
	this.menuobj.style.left = left + 'px';
	this.menuobj.style.top  = this.toppx + 'px';
};

vB_Popup_Menu.prototype.hide = function(e)
{

	if (e && e.button && e.button != 1)
	{
		// get around some context menu issues etc.
		return true;
	}

	this.stop_slide();

	this.menuobj.style.display = 'none';

	this.handle_overlaps(false);

	if (this.controlobj.editorid)
	{
		this.controlobj.state = false;
		//this.controlobj.editor.menu_context(this.controlobj, 'mouseout');
		vB_Editor[this.controlobj.editorid].menu_context(this.controlobj, 'mouseout');
	}

	vBmenu.activemenu = null;

	vBulletin.events["vBmenuHide_" + this.controlkey].fire(this.controlkey);
	vBulletin.events.vBmenuHide.fire(this.controlkey);
};

vB_Popup_Menu.prototype.hover = function(obj)
{
	if (vBmenu.activemenu != null)
	{
		if (vBmenu.menus[vBmenu.activemenu].controlkey != this.id)
		{
			this.show(obj, true);
		}
	}
};

vB_Popup_Menu.prototype.slide = function(clipX, clipY, opacity)
{
	if (this.direction == 'left' && (clipX < this.menuobj.offsetWidth || clipY < this.menuobj.offsetHeight))
	{
		if (vBmenu.open_fade && is_ie)
		{
			opacity += 10;
			this.menuobj.filters.item('DXImageTransform.Microsoft.alpha').opacity = opacity;
		}

		clipX += this.intervalX;
		clipY += this.intervalY;

		this.menuobj.style.clip = "rect(auto, " + clipX + "px, " + clipY + "px, auto)";
		this.slidetimer = setTimeout("vBmenu.menus[vBmenu.activemenu].slide(" + clipX + ", " + clipY + ", " + opacity + ");", 0);
	}
	else if (this.direction == 'right' && (clipX > 0 || clipY < this.menuobj.offsetHeight))
	{
		if (vBmenu.open_fade && is_ie)
		{
			opacity += 10;
			menuobj.filters.item('DXImageTransform.Microsoft.alpha').opacity = opacity;
		}

		clipX -= this.intervalX;
		clipY += this.intervalY;

		this.menuobj.style.clip = "rect(auto, " + this.menuobj.offsetWidth + "px, " + clipY + "px, " + clipX + "px)";
		this.slidetimer = setTimeout("vBmenu.menus[vBmenu.activemenu].slide(" + clipX + ", " + clipY + ", " + opacity + ");", 0);
	}
	else
	{
		this.stop_slide();
	}
};

vB_Popup_Menu.prototype.stop_slide = function()
{
	clearTimeout(this.slidetimer);

	this.menuobj.style.clip = 'rect(auto, auto, auto, auto)';

	if (vBmenu.open_fade && is_ie)
	{
		this.menuobj.filters.item('DXImageTransform.Microsoft.alpha').opacity = 100;
	}
};
vB_Popup_Menu.prototype.fetch_offset = function(obj)
{
	var left_offset = obj.offsetLeft;
	var top_offset = obj.offsetTop;

	while ((obj = obj.offsetParent) != null)
	{
		left_offset += obj.offsetLeft;
		top_offset += obj.offsetTop;
	}

	return { 'left' : left_offset, 'top' : top_offset };
};
vB_Popup_Menu.prototype.overlaps = function(obj, m)
{
	var s = new Array();
	var pos = this.fetch_offset(obj);
	s['L'] = pos['left'];
	s['T'] = pos['top'];
	s['R'] = s['L'] + obj.offsetWidth;
	s['B'] = s['T'] + obj.offsetHeight;


	if (s['L'] > m['R'] || s['R'] < m['L'] || s['T'] > m['B'] || s['B'] < m['T'])
	{
		return false;
	}
	return true;
};

vB_Popup_Menu.prototype.handle_overlaps = function(dohide)
{
	if (is_ie && !is_ie7)
	{
		var selects = fetch_tags(document, 'select');

		if (dohide)
		{
			var menuarea = new Array(); menuarea = {
				'L' : this.leftpx,
				'R' : this.leftpx + this.menuobj.offsetWidth,
				'T' : this.toppx,
				'B' : this.toppx + this.menuobj.offsetHeight
			};

			for (var i = 0; i < selects.length; i++)
			{
				if (this.overlaps(selects[i], menuarea))
				{
					var hide = true;
					var s = selects[i];
					while (s = s.parentNode)
					{
						if (s.className == 'vbmenu_popup')
						{
							hide = false;
							break;
						}
					}

					if (hide)
					{
						selects[i].style.visibility = 'hidden';
						array_push(vBmenu.hidden_selects, i);
					}
				}
			}
		}
		else
		{
			while (true)
			{
				var i = array_pop(vBmenu.hidden_selects);
				if (typeof i == 'undefined' || i == null)
				{
					break;
				}
				else
				{
					selects[i].style.visibility = 'visible';
				}
			}
		}
	}
};

function vB_Popup_Events()
{
};


vB_Popup_Events.prototype.controlobj_onclick = function(e)
{
	if (typeof do_an_e == 'function')
	{
		do_an_e(e);
		if (vBmenu.activemenu == null || vBmenu.menus[vBmenu.activemenu].controlkey != this.id)
		{
			vBmenu.menus[this.id].show(this);
		}
		else
		{
			vBmenu.menus[this.id].hide();
		}
	}
};
vB_Popup_Events.prototype.controlobj_onmouseover = function(e)
{
	if (typeof do_an_e == 'function')
	{
		do_an_e(e);
		vBmenu.menus[this.id].hover(this);
	}
};

vB_Popup_Events.prototype.menuoption_onclick_function = function(e)
{
	this.ofunc(e);
	vBmenu.menus[this.controlkey].hide();
};
vB_Popup_Events.prototype.menuoption_onclick_link = function(e)
{
	e = e ? e : window.event;

	if (e.shiftKey || (this.target != null && this.target != '' && this.target.toLowerCase() != '_self'))
	{
		if (this.target != null && this.target.charAt(0) != '_')
		{
			window.open(this.href, this.target);
		}
		else
		{
			window.open(this.href);
		}
	}
	else
	{
		window.location = this.href;
	}

	e.cancelBubble = true;
	if (e.stopPropagation) e.stopPropagation();
	if (e.preventDefault) e.preventDefault();

	vBmenu.menus[this.controlkey].hide();
	return false;
};

vB_Popup_Events.prototype.menuoption_onmouseover = function(e)
{
	this.className = 'vbmenu_hilite' + (this.islink ? ' vbmenu_hilite_alink' : '');
	this.style.cursor = pointer_cursor;
};


vB_Popup_Events.prototype.menuoption_onmouseout = function(e)
{
	this.className = 'vbmenu_option' + (this.islink ? ' vbmenu_option_alink' : '');
	this.style.cursor = 'default';
};