/*
* jQuery Tooltip plugin 1.3
*
* http://bassistance.de/jquery-plugins/jquery-plugin-tooltip/
* http://docs.jquery.com/Plugins/Tooltip
*
* Copyright (c) 2006 - 2008 Jörn Zaefferer
*
* $Id: jquery.tooltip.js 5741 2008-06-21 15:22:16Z joern.zaefferer $
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*/
;(function($) {
// the tooltip element
var helper = {},
// the current tooltipped element
current,
// the title of the current element, used for restoring
title,
// timeout id for delayed tooltips
tID,
// IE 5.5 or 6
IE = false;
//IE = $.browser.msie && /MSIE\s(5\.5|6\.)/.test(navigator.userAgent),
// flag for mouse tracking
track = false;
$.tooltip = {
blocked: false,
defaults: {
delay: 200,
fade: false,
showURL: true,
extraClass: "",
top: 15,
left: 30,
id: "tooltip"
},
block: function() {
$.tooltip.blocked = !$.tooltip.blocked;
}
};
$.fn.extend({
tooltip: function(settings) {
settings = $.extend({}, $.tooltip.defaults, settings);
createHelper(settings);
return this.each(function() {
$.data(this, "tooltip", settings);
this.tOpacity = helper.parent.css("opacity");
// copy tooltip into its own expando and remove the title
this.tooltipText = this.title;
$(this).removeAttr("title");
// also remove alt attribute to prevent default tooltip in IE
this.alt = "";
})
.mouseover(save)
.mouseout(hide)
.click(hide);
},
fixPNG: IE ? function() {
return this.each(function () {
var image = $(this).css('backgroundImage');
if (image.match(/^url\(["']?(.*\.png)["']?\)$/i)) {
image = RegExp.$1;
$(this).css({
'backgroundImage': 'none',
'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=crop, src='" + image + "')"
}).each(function () {
var position = $(this).css('position');
if (position != 'absolute' && position != 'relative')
$(this).css('position', 'relative');
});
}
});
} : function() { return this; },
unfixPNG: IE ? function() {
return this.each(function () {
$(this).css({'filter': '', backgroundImage: ''});
});
} : function() { return this; },
hideWhenEmpty: function() {
return this.each(function() {
$(this)[ $(this).html() ? "show" : "hide" ]();
});
},
url: function() {
return this.attr('href') || this.attr('src');
}
});
function createHelper(settings) {
// there can be only one tooltip helper
if( helper.parent )
return;
// create the helper, h3 for title, div for url
helper.parent = $('')
// add to document
.appendTo(document.body)
// hide it at first
.hide();
// apply bgiframe if available
if ( $.fn.bgiframe )
helper.parent.bgiframe();
// save references to title and url elements
helper.title = $('h3', helper.parent);
helper.body = $('div.body', helper.parent);
helper.url = $('div.url', helper.parent);
}
function settings(element) {
return $.data(element, "tooltip");
}
// main event handler to start showing tooltips
function handle(event) {
// show helper, either with timeout or on instant
if( settings(this).delay )
tID = setTimeout(show, settings(this).delay);
else
show();
// if selected, update the helper position when the mouse moves
track = !!settings(this).track;
$(document.body).bind('mousemove', update);
// update at least once
update(event);
}
// save elements title before the tooltip is displayed
function save() {
// if this is the current source, or it has no title (occurs with click event), stop
if ( $.tooltip.blocked || this == current || (!this.tooltipText && !settings(this).bodyHandler) )
return;
// save current
current = this;
title = this.tooltipText;
if ( settings(this).bodyHandler ) {
helper.title.hide();
var bodyContent = settings(this).bodyHandler.call(this);
if (bodyContent.nodeType || bodyContent.jquery) {
helper.body.empty().append(bodyContent)
} else {
helper.body.html( bodyContent );
}
helper.body.show();
} else if ( settings(this).showBody ) {
var parts = title.split(settings(this).showBody);
helper.title.html(parts.shift()).show();
helper.body.empty();
for(var i = 0, part; (part = parts[i]); i++) {
if(i > 0)
helper.body.append("
");
helper.body.append(part);
}
helper.body.hideWhenEmpty();
} else {
helper.title.html(title).show();
helper.body.hide();
}
// if element has href or src, add and show it, otherwise hide it
if( settings(this).showURL && $(this).url() )
helper.url.html( $(this).url().replace('http://', '') ).show();
else
helper.url.hide();
// add an optional class for this tip
helper.parent.addClass(settings(this).extraClass);
// fix PNG background for IE
if (settings(this).fixPNG )
helper.parent.fixPNG();
handle.apply(this, arguments);
}
// delete timeout and show helper
function show() {
tID = null;
if ((!IE || !$.fn.bgiframe) && settings(current).fade) {
if (helper.parent.is(":animated"))
helper.parent.stop().show().fadeTo(settings(current).fade, current.tOpacity);
else
helper.parent.is(':visible') ? helper.parent.fadeTo(settings(current).fade, current.tOpacity) : helper.parent.fadeIn(settings(current).fade);
} else {
helper.parent.show();
}
update();
}
/**
* callback for mousemove
* updates the helper position
* removes itself when no current element
*/
function update(event) {
if($.tooltip.blocked)
return;
if (event && event.target.tagName == "OPTION") {
return;
}
// stop updating when tracking is disabled and the tooltip is visible
if ( !track && helper.parent.is(":visible")) {
$(document.body).unbind('mousemove', update)
}
// if no current element is available, remove this listener
if( current == null ) {
$(document.body).unbind('mousemove', update);
return;
}
// remove position helper classes
helper.parent.removeClass("viewport-right").removeClass("viewport-bottom");
var left = helper.parent[0].offsetLeft;
var top = helper.parent[0].offsetTop;
if (event) {
// position the helper 15 pixel to bottom right, starting from mouse position
left = event.pageX + settings(current).left+40;
top = event.pageY + settings(current).top;
var right='auto';
if (settings(current).positionLeft) {
right = $(window).width() - left;
left = 'auto';
}
helper.parent.css({
left: left,
right: right,
top: top
});
}
var v = viewport(),
h = helper.parent[0];
// check horizontal position
if (v.x + v.cx < h.offsetLeft + h.offsetWidth) {
left -= h.offsetWidth + 20 + settings(current).left;
helper.parent.css({left: left + 'px'}).addClass("viewport-right");
}
// check vertical position
if (v.y + v.cy < h.offsetTop + h.offsetHeight) {
top -= h.offsetHeight + 20 + settings(current).top;
helper.parent.css({top: top + 'px'}).addClass("viewport-bottom");
}
}
function viewport() {
return {
x: $(window).scrollLeft(),
y: $(window).scrollTop(),
cx: $(window).width(),
cy: $(window).height()
};
}
// hide helper and restore added classes and the title
function hide(event) {
if($.tooltip.blocked)
return;
// clear timeout if possible
if(tID)
clearTimeout(tID);
// no more current element
current = null;
var tsettings = settings(this);
function complete() {
helper.parent.removeClass( tsettings.extraClass ).hide().css("opacity", "");
}
if ((!IE || !$.fn.bgiframe) && tsettings.fade) {
if (helper.parent.is(':animated'))
helper.parent.stop().fadeTo(tsettings.fade, 0, complete);
else
helper.parent.stop().fadeOut(tsettings.fade, complete);
} else
complete();
if( settings(this).fixPNG )
helper.parent.unfixPNG();
}
})(jQuery);