transmission/web/javascript/jquery/jquery.transmenu.js

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/* transMenu - v0.1.5 (2007-07-07)
* Copyright (c) 2007 Roman Weich
* http://p.sohei.org
*
*/
(function($)
{
var defaults = {
onClick: function(){
$(this).find('>a').each(function(){
if ( this.href )
{
window.location = this.href;
}
});
},
arrow_char: '►',
selected_char: '✓',
subDelay: 300,
direction: 'down',
mainDelay: 10
};
var transMenuSettings;
$.fn.transMenu = function(options)
{
var shown = false;
var liOffset = 2;
transMenuSettings = $.extend({}, defaults, options);
var hideDIV = function(div, delay) {
//a timer running to show the div?
if ( div.timer && !div.isVisible ) {
clearTimeout(div.timer);
} else if (div.timer) {
return; //hide-timer already running
}
if ( div.isVisible ) {
div.timer = setTimeout( function() {
//remove events
$(div).find('ul li').unbind('mouseover', liHoverIn).unbind('mouseout', liHoverOut).unbind('click', transMenuSettings.onClick);
$(div).hide();
div.isVisible = false;
div.timer = null;
}, delay);
}
};
var showDIV = function(div, delay) {
if ( div.timer ) {
clearTimeout(div.timer);
}
if ( !div.isVisible ) {
div.timer = setTimeout( function() {
//check if the mouse is still over the parent item - if not dont show the submenu
if (! $('div').parent().is('.hover')) {
return;
}
//assign events to all div>ul>li-elements
$(div).find('ul li').mouseover(liHoverIn).mouseout(liHoverOut).click(transMenuSettings.onClick);
//positioning
if (! $(div).parent().is('.main')) {
$(div).css('left', $(div).parent().parent().width() - liOffset);
}
if (transMenuSettings.direction == 'up') {
$(div).css('top', ($(div).height() * -1) + $(div).parent().parent().height());
}
div.isVisible = true; //we use this over :visible to speed up traversing
$(div).show();
div.timer = null;
}, delay);
}
};
//same as hover.handlehover in jquery - just can't use hover() directly - need the ability to unbind only the one hover event
var testHandleHover = function(e) {
// Check if mouse(over|out) are still within the same parent element
var p = (e.type == "mouseover" ? e.fromElement : e.toElement) || e.relatedTarget;
// Traverse up the tree
while ( p && p != this ) {
try {
p = p.parentNode;
} catch(e) {
p = this;
}
}
// If we actually just moused on to a sub-element, ignore it
if ( p == this ) {
return false;
}
return true;
};
var mainHoverIn = function(e) {
$(this).addClass('hover').siblings('li.hover').removeClass('hover');
if ( shown ) {
hoverIn(this, transMenuSettings.mainDelay);
}
};
var liHoverIn = function(e) {
if ( !testHandleHover(e) ) {
return false;
}
if ( e.target != this ) {
//look whether the target is a direct child of this (maybe an image)
if ( !isChild(this, e.target) ) {
return;
}
}
hoverIn(this, transMenuSettings.subDelay);
};
var hoverIn = function(li, delay) {
//stop running timers from the other menus on the same level - a little faster than $('>*>div', li.parentNode)
var n = li.parentNode.firstChild;
for ( ; n; n = n.nextSibling ) {
if ( n.nodeType == 1 && n.nodeName.toUpperCase() == 'LI' ) {
var div = getOneChild(n, 'DIV');
//clear show-div timer
if ( div && div.timer && !div.isVisible ) {
clearTimeout(div.timer);
div.timer = null;
}
}
}
//is there a timer running to hide one of the parent divs? stop it
var pNode = li.parentNode;
for ( ; pNode; pNode = pNode.parentNode ) {
if ( pNode.nodeType == 1 && pNode.nodeName.toUpperCase() == 'DIV' ) {
if (pNode.timer) {
clearTimeout(pNode.timer);
pNode.timer = null;
$(pNode.parentNode).addClass('hover');
}
}
}
//highlight the current element
$(li).addClass('hover');
var innerDiv = $(li).children('div');
innerDiv = innerDiv.length ? innerDiv[0] : null;
//is the submenu already visible?
if ( innerDiv && innerDiv.isVisible ) {
//hide-timer running?
if ( innerDiv.timer ) {
clearTimeout(innerDiv.timer);
innerDiv.timer = null;
} else {
return;
}
}
//hide all open menus on the same level and below and unhighlight the li item (but not the current submenu!)
$(li.parentNode.getElementsByTagName('DIV')).each( function() {
if ( this != innerDiv && this.isVisible ) {
hideDIV(this, delay);
$(this.parentNode).removeClass('hover');
}
});
//show the submenu, if there is one
if ( innerDiv ) {
showDIV(innerDiv, delay);
}
};
var liHoverOut = function(e) {
if ( !testHandleHover(e) ) {
return false;
}
if ( e.target != this ) {
//return only if the target is no direct child of this
if ( !isChild(this, e.target) ) {
return;
}
}
// Remove the hover from the submenu item, if the mouse is hovering out of the
// menu (this is only for the last open (levelwise) (sub-)menu)
var div = getOneChild(this, 'DIV');
if ( !div ) {
$(this).removeClass('hover');
} else {
if ( !div.isVisible ) {
$(this).removeClass('hover');
}
}
};
var mainHoverOut = function(e) {
//no need to test e.target==this, as no child has the same event bound
var div = getOneChild(this, 'DIV');
var relTarget = e.relatedTarget || e.toElement; //this is undefined sometimes (e.g. when the mouse moves out of the window), so dont remove hover then
var p;
if ( !shown ) {
$(this).removeClass('hover');
//menuitem has no submenu, so dont remove the hover if the mouse goes outside the menu
} else if ( !div && relTarget ) {
p = $(e.target).parents('UL.trans_menu');
if ( p.contains(relTarget)) {
$(this).removeClass('hover');
}
} else if ( relTarget ) {
//remove hover only when moving to anywhere inside the trans_menu
p = $(e.target).parents('UL.trans_menu');
if ( !div.isVisible && (p.contains(relTarget)) ) {
$(this).removeClass('hover');
}
}
};
var mainClick = function() {
var div = getOneChild(this, 'DIV');
//clicked on an open main-menu-item
if ( div && div.isVisible ) {
clean();
$(this).addClass('hover');
} else {
hoverIn(this, transMenuSettings.mainDelay);
shown = true;
$('ul.trans_menu li').addClass('active');
$(document).bind('mousedown', checkMouse);
}
};
var checkMouse = function(e) {
//is the mouse inside a trans_menu? if yes, is it an open (the current) one?
var vis = false;
$(e.target).parents('UL.trans_menu').find('div').each( function(){
if ( this.isVisible ) {
vis = true;
}
});
if ( !vis ) {
clean();
}
};
var clean = function() {
//remove timeout and hide the divs
$('ul.trans_menu div.outerbox').each(function(){
if ( this.timer ) {
clearTimeout(this.timer);
this.timer = null;
}
if ( this.isVisible ) {
$(this).hide();
this.isVisible = false;
}
});
$('ul.trans_menu li').removeClass('hover');
//remove events
$('ul.trans_menu>li li').unbind('mouseover', liHoverIn).unbind('mouseout', liHoverOut).unbind('click', transMenuSettings.onClick);
$(document).unbind('mousedown', checkMouse);
shown = false;
$('ul.trans_menu li').removeClass('active');
};
var getOneChild = function(elem, name) {
if ( !elem ) {
return null;
}
var n = elem.firstChild;
for ( ; n; n = n.nextSibling ) {
if ( n.nodeType == 1 && n.nodeName.toUpperCase() == name ) {
return n;
}
}
return null;
};
var isChild = function(elem, childElem) {
var n = elem.firstChild;
for ( ; n; n = n.nextSibling ) {
if ( n == childElem ) {
return true;
}
}
return false;
};
return this.each(function() {
//add .contains() to mozilla - http://www.quirksmode.org/blog/archives/2006/01/contains_for_mo.html
if (window.Node && Node.prototype && !Node.prototype.contains) {
Node.prototype.contains = function(arg) {
return !!(this.compareDocumentPosition(arg) & 16);
};
}
if (! $(this).is('.trans_menu')) {
$(this).addClass('trans_menu');
}
//add shadows
$('ul', this).shadowBox();
//assign events
$(this).bind('closemenu', function(){clean();}); //assign closemenu-event, through wich the menu can be closed from outside the plugin
//add click event handling, if there are any elements inside the main menu
var liElems = $(this).children('li');
for ( var j = 0; j < liElems.length; j++ ) {
if ( getOneChild(getOneChild(getOneChild(liElems[j], 'DIV'), 'UL'), 'LI') ) {
$(liElems[j]).click(mainClick);
}
}
//add hover event handling and assign classes
$(liElems).hover(mainHoverIn, mainHoverOut).addClass('main').find('>div').addClass('inner');
//add the little arrow before each submenu
if ( transMenuSettings.arrow_char ) {
var arrow_markup = $("<span class='arrow'>" + transMenuSettings.arrow_char + '</span>');
// Mozilla float/position hack
if ($.browser.mozilla) {
arrow_markup.css('margin-top', '-13px');
}
$('div.inner div.outerbox', this).before(arrow_markup);
}
//the floating list elements are destroying the layout..so make it nice again..
$(this).wrap('<div class="main_container"></div>').after('<div style="clear: both; visibility: hidden;"></div>');
});
};
$.fn.transMenu.setDefaults = function(o) {
$.extend(defaults, o);
};
$.fn.shadowBox = function() {
return this.each(function() {
var outer = $('<div class="outerbox"></div>').get(0);
if ( $(this).css('position') == 'absolute' ) {
//if the child(this) is positioned abolute, we have to use relative positioning and shrink the outerbox accordingly to the innerbox
$(outer).css({position:'relative', width:this.offsetWidth, height:this.offsetHeight});
} else {
//shrink the outerbox
$(outer).css('position', 'absolute');
}
//add the boxes
$(this).addClass('innerBox').wrap(outer).
before('<div class="shadowbox1"></div><div class="shadowbox2"></div><div class="shadowbox3"></div>');
});
};
$.fn.selectMenuItem = function() {
if (this.find('span.selected').length == 0) {
this.prepend($("<span class='selected'>" + transMenuSettings.selected_char + "</span>"));
}
return this;
};
$.fn.deselectMenuItem = function() {
return this.find('span.selected').remove();
};
$.fn.menuItemIsSelected = function() {
return (this.find('span.selected').length > 0);
};
$.fn.deselectMenuSiblings = function() {
this.parent().find('span.selected').remove();
this.selectMenuItem();
return this;
};
})(jQuery);