/*
* The jBox menu system. Written by Dan Fuhry and licensed under the GPL.
*/
// Cache of DOM and event objects, used in setTimeout() calls due to scope rules
var jBoxObjCache = new Object();
// Cache of "correct" heights for unordered list objects used in submenus. Helps the animation routine know what height it's aiming for.
var jBoxMenuHeights = new Object();
// Blocks animations from running if there's already an animation going on the same object
var jBoxSlideBlocker = new Object();
// Switch to enable or disable jBox slide animation
var jBox_slide_enable = true;
// Speed at which the menus should slide open. 1 to 100 or -1 to disable.
// Setting this higher than 100 will cause an infinite loop in the browser.
// Default is 80 - anything higher than 90 means exponential speed increase
var slide_speed = 80;
// Inertia value to start with
// Default is 0
var inertia_base = 0;
// Value added to inertia_base on each frame - generally 1 to 3 is good, with 1 being slowest animation
// Default is 1
var inertia_inc = 1;
// Opacity that menus should fade to. 1 to 100 or -1 to disable fades. This only works if the slide effect is also enabled.
// Default is 100
var jBox_opacity = 100;
// Adds the jBox CSS to the HTML header. Called on window onload.
var jBoxInit = function()
{
setTimeout('jBoxBatchSetup();', 200);
}
// Initializes each menu.
function jBoxBatchSetup()
{
if ( KILL_SWITCH )
return false;
var menus = document.getElementsByClassName('div', 'menu_nojs');
if ( menus.length > 0 )
{
for ( var i in menus )
{
if ( typeof(menus[i]) != 'object')
continue; // toJSONString() compatibility
jBoxSetup(menus[i]);
}
}
}
// Initializes a div with a jBox menu in it.
function jBoxSetup(obj)
{
$(obj).addClass('menu');
removeTextNodes(obj);
for ( var i = 0; i < obj.childNodes.length; i++ )
{
/* normally this would be done in about 2 lines of code, but javascript is so picky..... */
if ( obj.childNodes[i] )
{
if ( obj.childNodes[i].tagName )
{
if ( obj.childNodes[i].tagName == 'A' )
{
// if ( is_Safari ) alert('It\'s an A: '+obj);
if ( obj.childNodes[i].nextSibling )
{
// alert("Next sibling: " + obj.childNodes[i].nextSibling);
if ( obj.childNodes[i].nextSibling.tagName )
{
if ( obj.childNodes[i].nextSibling.tagName == 'UL' || ( obj.childNodes[i].nextSibling.tagName.toLowerCase() == 'div' && obj.childNodes[i].nextSibling.className == 'submenu' ) )
{
// Calculate height
var ul = obj.childNodes[i].nextSibling;
domObjChangeOpac(0, ul);
ul.style.display = 'block';
var dim = fetch_dimensions(ul);
if ( !ul.id )
ul.id = 'jBoxmenuobj_' + Math.floor(Math.random() * 10000000);
jBoxMenuHeights[ul.id] = parseInt(dim['h']) - 2; // subtract 2px for border width
ul.style.display = 'none';
domObjChangeOpac(100, ul);
// Setup events
obj.childNodes[i].onmouseover = function() { jBoxOverHandler(this); };
obj.childNodes[i].onmouseout = function(e) { jBoxOutHandler(this, e); };
obj.childNodes[i].nextSibling.onmouseout = function(e) { jBoxOutHandler(this, e); };
}
}
}
}
}
}
}
}
// Called when user hovers mouse over a submenu
function jBoxOverHandler(obj)
{
// if ( is_Safari )
// alert('Safari and over');
// Random ID used to track the object to perform on
var seed = Math.floor(Math.random() * 1000000);
jBoxObjCache[seed] = obj;
// Sleep for a (little more than a tenth of a) second to see if the user really wants the menu to expand
setTimeout('if(isOverObj(jBoxObjCache['+seed+'], false, false)) jBoxOverHandlerBin(jBoxObjCache['+seed+']);', 150);
}
// Displays a menu.
function jBoxOverHandlerBin(obj)
{
var others = obj.parentNode.getElementsByTagName('ul');
for ( var i in others )
{
if(typeof(others[i]) == 'object')
{
others[i].style.display = 'none';
$(others[i].previousSibling).rmClass('liteselected');
}
}
var others = obj.parentNode.getElementsByTagName('div');
for ( var i in others )
{
if(typeof(others[i]) == 'object')
{
if ( others[i].className == 'submenu' )
{
others[i].style.display = 'none';
$(others[i].previousSibling).rmClass('liteselected');
}
}
}
if(obj.nextSibling.tagName.toLowerCase() == 'ul' || ( obj.nextSibling.tagName.toLowerCase() == 'div' && obj.nextSibling.className == 'submenu' ))
{
$(a).addClass('liteselected');
//obj.className = 'liteselected';
var ul = obj.nextSibling;
var dim = fetch_dimensions(obj);
var off = fetch_offset(obj);
var dimh = parseInt(dim['h']);
var offtop = parseInt(off['top']);
var top = dimh + offtop;
left = off['left'];
if ( jBox_slide_enable )
{
domObjChangeOpac(0, ul);
}
ul.style.left = left + 'px';
ul.style.top = top + 'px';
ul.style.clip = 'rect(auto,auto,auto,auto)';
ul.style.overflow = 'visible';
ul.style.display = 'block';
if ( jBox_slide_enable )
{
slideOut(ul);
}
else
{
domObjChangeOpac(100, ul);
}
}
}
function jBoxOutHandler(obj, event)
{
var seed = Math.floor(Math.random() * 1000000);
var seed2 = Math.floor(Math.random() * 1000000);
jBoxObjCache[seed] = obj;
jBoxObjCache[seed2] = event;
setTimeout('jBoxOutHandlerBin(jBoxObjCache['+seed+'], jBoxObjCache['+seed2+']);', 750);
}
function jBoxOutHandlerBin(obj, event)
{
var caller = obj.tagName.toLowerCase();
if(caller == 'a')
{
a = obj;
ul = obj.nextSibling;
}
else if(caller == 'ul' || caller == 'div')
{
a = obj.previousSibling;
ul = obj;
}
else
{
return false;
}
if (!isOverObj(a, false, event) && !isOverObj(ul, true, event))
{
$(a).rmClass('liteselected');
if ( jBox_slide_enable )
{
slideIn(ul);
}
else
{
ul.style.display = 'none';
}
}
return true;
}
// Slide an element downwards until it is at full height.
// First parameter should be a DOM object with style.display = block and opacity = 0.
var sliderobj = new Object();
function slideOut(obj)
{
if ( jBoxSlideBlocker[obj.id] )
return false;
jBoxSlideBlocker[obj.id] = true;
if ( slide_speed == -1 )
{
obj.style.display = 'block';
return false;
}
var currentheight = 0;
var targetheight = jBoxMenuHeights[obj.id];
var inertiabase = inertia_base;
var inertiainc = inertia_inc;
slideStep(obj, 0);
domObjChangeOpac(100, obj);
obj.style.overflow = 'hidden';
// Don't edit past here
var timercnt = 0;
var seed = Math.floor(Math.random() * 1000000);
sliderobj[seed] = obj;
var framecnt = 0;
while(true)
{
framecnt++;
timercnt += ( 100 - slide_speed );
inertiabase += inertiainc;
currentheight += inertiabase;
if ( currentheight > targetheight )
currentheight = targetheight;
setTimeout('slideStep(sliderobj['+seed+'], '+currentheight+', '+targetheight+');', timercnt);
if ( currentheight >= targetheight )
break;
}
timercnt = timercnt + ( 100 - slide_speed );
setTimeout('jBoxSlideBlocker[sliderobj['+seed+'].id] = false;', timercnt);
var opacstep = jBox_opacity / framecnt;
var opac = 0;
var timerstep = 0;
domObjChangeOpac(0, obj);
while(true)
{
timerstep += ( 100 - slide_speed );
opac += opacstep;
setTimeout('domObjChangeOpac('+opac+', sliderobj['+seed+']);', timerstep);
if ( opac >= jBox_opacity )
break;
}
}
function slideIn(obj)
{
if ( obj.style.display != 'block' )
return false;
if ( jBoxSlideBlocker[obj.id] )
return false;
jBoxSlideBlocker[obj.id] = true;
var targetheight = 0;
var dim = fetch_dimensions(obj);
var currentheight = jBoxMenuHeights[obj.id];
var origheight = currentheight;
var inertiabase = inertia_base;
var inertiainc = inertia_inc;
domObjChangeOpac(100, obj);
obj.style.overflow = 'hidden';
// Don't edit past here
var timercnt = 0;
var seed = Math.floor(Math.random() * 1000000);
sliderobj[seed] = obj;
var framecnt = 0;
for(var j = 0;j<100;j++) // while(true)
{
framecnt++;
timercnt = timercnt + ( 100 - slide_speed );
inertiabase = inertiabase + inertiainc;
currentheight = currentheight - inertiabase;
if ( currentheight < targetheight )
currentheight = targetheight;
setTimeout('slideStep(sliderobj['+seed+'], '+currentheight+');', timercnt);
if ( currentheight <= targetheight )
break;
}
timercnt += ( 100 - slide_speed );
setTimeout('sliderobj['+seed+'].style.display="none";sliderobj['+seed+'].style.height="'+origheight+'px";jBoxSlideBlocker[sliderobj['+seed+'].id] = false;', timercnt);
var opacstep = jBox_opacity / framecnt;
var opac = jBox_opacity;
var timerstep = 0;
domObjChangeOpac(100, obj);
while(true)
{
timerstep += ( 100 - slide_speed );
opac -= opacstep;
setTimeout('domObjChangeOpac('+opac+', sliderobj['+seed+']);', timerstep);
if ( opac <= 0 )
break;
}
}
function slideStep(obj, height, maxheight)
{
obj.style.height = height + 'px';
//obj.style.clip = 'rect(3px,auto,'+maxheight+'px,auto)';
obj.style.overflow = 'hidden';
//obj.style.clip = 'rect('+height+'px,0px,'+maxheight+'px,auto);';
}
function isOverObj(obj, bias, event)
{
var fieldUL = new Object();
var dim = fetch_dimensions(obj);
var off = fetch_offset(obj);
fieldUL['top'] = off['top'];
fieldUL['left'] = off['left'];
fieldUL['right'] = off['left'] + dim['w'];
fieldUL['bottom'] = off['top'] + dim['h'];
var mouseY_local = mouseY + getScrollOffset();
// document.getElementById('debug').innerHTML = '<br />Mouse: x: '+mouseX+', y:' + mouseY + '<br />' + document.getElementById('debug').innerHTML;
if(bias)
{
if ( ( mouseX < fieldUL['left'] + 2 || mouseX > fieldUL['right'] - 5 ) ||
( mouseY_local < fieldUL['top'] - 2 || mouseY_local > fieldUL['bottom'] - 2 ) )
{
return false;
}
}
else
{
if ( ( mouseX < fieldUL['left'] || mouseX > fieldUL['right'] ) ||
( mouseY_local < fieldUL['top'] || mouseY_local > fieldUL['bottom'] ) )
return false;
}
return true;
}
function jBoxGarbageCollection(e)
{
setMousePos(e);
var menus = document.getElementsByClassName('div', 'menu');
if ( menus.length > 0 )
{
for ( var i in menus )
{
if ( typeof(menus[i]) != 'object')
continue; // toJSONString() compatibility
var uls = menus[i].getElementsByTagName('ul');
if ( uls.length > 0 )
{
for ( var j = 0; j < uls.length; j++ )
{
if ( !isOverObj(uls[j], false, e) )
{
$(uls[j].previousSibling).rmClass('liteselected');
//uls[j].style.display = 'none';
slideIn(uls[j]);
}
}
}
var uls = getElementsByClassName(menus[i], 'divs', 'submenu');
if ( uls.length > 0 )
{
for ( var j = 0; j < uls.length; j++ )
{
if ( !isOverObj(uls[j], false, e) )
{
$(uls[j].previousSibling).rmClass('liteselected');
//uls[j].style.display = 'none';
slideIn(uls[j]);
}
}
}
}
}
}
document.onclick = jBoxGarbageCollection;
function removeTextNodes(obj)
{
if(obj)
{
if(typeof(obj.tagName) != 'string' || ( String(obj) == '[object Text]' && is_Safari ) )
{
if ( ( obj.nodeType == 3 && obj.data.match(/^([\s]*)$/ig) ) ) // || ( typeof(obj.innerHTML) == undefined && is_Safari ) )
{
obj.parentNode.removeChild(obj);
return;
}
}
if(obj.firstChild)
{
for(var i = 0; i < obj.childNodes.length; i++)
{
removeTextNodes(obj.childNodes[i]);
}
}
}
}
var getElementsByClassName = function(parent, type, cls) {
if(!type)
type = '*';
ret = new Array();
el = parent.getElementsByTagName(type);
for ( var i = 0; i < el.length; i++ )
{
if ( typeof(el[i]) != 'object')
continue; // toJSONString() compatibility
if(el[i].className)
{
if(el[i].className.indexOf(' ') > 0)
{
classes = el[i].className.split(' ');
}
else
{
classes = new Array();
classes.push(el[i].className);
}
if ( in_array(cls, classes) )
ret.push(el[i]);
}
}
return ret;
}
document.getElementsByClassName = function(type, cls) {
return getElementsByClassName(document, type, cls);
}
function setMousePos(event)
{
if(IE)
{
if(!event)
{
event = window.event;
}
clX = event.clientX;
if ( document.body )
sL = document.body.scrollLeft;
else
sL = 0;
mouseX = clX + sL;
mouseY = event.clientY + ( document.body ? document.body.scrollTop : 0 );
return;
}
if( typeof(event.clientX) == 'number' )
{
mouseX = event.clientX;
mouseY = event.clientY;
return;
}
else if( typeof(event.layerX) == 'number' )
{
mouseX = event.layerX;
mouseY = event.layerY;
return;
}
else if( typeof(event.offsetX) == 'number' )
{
mouseX = event.offsetX;
mouseY = event.offsetY;
return;
}
else if( typeof(event.screenX) == 'number' )
{
mouseX = event.screenX;
mouseY = event.screenY;
return;
}
else if( typeof(event.x) == 'number' )
{
mouseX = event.x;
mouseY = event.y;
return;
}
}
document.onmousemove = function(e)
{
setMousePos(e);
};
function domObjChangeOpac(opacity, id) {
var object = id.style;
object.opacity = (opacity / 100);
object.MozOpacity = (opacity / 100);
object.KhtmlOpacity = (opacity / 100);
object.filter = "alpha(opacity=" + opacity + ")";
}