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