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VQI_GenomeBrowser/jquery.tipsy.js
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| // tipsy, facebook style tooltips for jquery | |
| // version 1.0.0a | |
| // (c) 2008-2010 jason frame [jason@onehackoranother.com] | |
| // released under the MIT license | |
| (function($) { | |
| function maybeCall(thing, ctx) { | |
| return (typeof thing == 'function') ? (thing.call(ctx)) : thing; | |
| } | |
| function Tipsy(element, options) { | |
| this.$element = $(element); | |
| this.options = options; | |
| this.enabled = true; | |
| this.fixTitle(); | |
| } | |
| Tipsy.prototype = { | |
| show: function() { | |
| var title = this.getTitle(); | |
| if (title && this.enabled) { | |
| var $tip = this.tip(); | |
| $tip.find('.tipsy-inner')[this.options.html ? 'html' : 'text'](title); | |
| $tip[0].className = 'tipsy'; // reset classname in case of dynamic gravity | |
| $tip.remove().css({top: 0, left: 0, visibility: 'hidden', display: 'block'}).prependTo(document.body); | |
| var pos = $.extend({}, this.$element.offset(), { | |
| width: this.$element[0].offsetWidth || 0, | |
| height: this.$element[0].offsetHeight || 0 | |
| }); | |
| if (typeof this.$element[0].nearestViewportElement == 'object') { | |
| // SVG | |
| var el = this.$element[0]; | |
| var rect = el.getBoundingClientRect(); | |
| pos.width = rect.width; | |
| pos.height = rect.height; | |
| } | |
| var actualWidth = $tip[0].offsetWidth, | |
| actualHeight = $tip[0].offsetHeight, | |
| gravity = maybeCall(this.options.gravity, this.$element[0]); | |
| var tp; | |
| switch (gravity.charAt(0)) { | |
| case 'n': | |
| tp = {top: pos.top + pos.height + this.options.offset, left: pos.left + pos.width / 2 - actualWidth / 2}; | |
| break; | |
| case 's': | |
| tp = {top: pos.top - actualHeight - this.options.offset, left: pos.left + pos.width / 2 - actualWidth / 2}; | |
| break; | |
| case 'e': | |
| tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth - this.options.offset}; | |
| break; | |
| case 'w': | |
| tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width + this.options.offset}; | |
| break; | |
| } | |
| if (gravity.length == 2) { | |
| if (gravity.charAt(1) == 'w') { | |
| tp.left = pos.left + pos.width / 2 - 15; | |
| } else { | |
| tp.left = pos.left + pos.width / 2 - actualWidth + 15; | |
| } | |
| } | |
| $tip.css(tp).addClass('tipsy-' + gravity); | |
| $tip.find('.tipsy-arrow')[0].className = 'tipsy-arrow tipsy-arrow-' + gravity.charAt(0); | |
| if (this.options.className) { | |
| $tip.addClass(maybeCall(this.options.className, this.$element[0])); | |
| } | |
| if (this.options.fade) { | |
| $tip.stop().css({opacity: 0, display: 'block', visibility: 'visible'}).animate({opacity: this.options.opacity}); | |
| } else { | |
| $tip.css({visibility: 'visible', opacity: this.options.opacity}); | |
| } | |
| var t = this; | |
| var set_hovered = function(set_hover){ | |
| return function(){ | |
| t.$tip.stop(); | |
| t.tipHovered = set_hover; | |
| if (!set_hover){ | |
| if (t.options.delayOut === 0) { | |
| t.hide(); | |
| } else { | |
| setTimeout(function() { | |
| if (t.hoverState == 'out') t.hide(); }, t.options.delayOut); | |
| } | |
| } | |
| }; | |
| }; | |
| $tip.hover(set_hovered(true), set_hovered(false)); | |
| } | |
| }, | |
| hide: function() { | |
| if (this.options.fade) { | |
| this.tip().stop().fadeOut(function() { $(this).remove(); }); | |
| } else { | |
| this.tip().remove(); | |
| } | |
| }, | |
| fixTitle: function() { | |
| var $e = this.$element; | |
| if ($e.attr('title') || typeof($e.attr('original-title')) != 'string') { | |
| $e.attr('original-title', $e.attr('title') || '').removeAttr('title'); | |
| } | |
| if (typeof $e.context.nearestViewportElement == 'object'){ | |
| if ($e.children('title').length){ | |
| $e.append('<original-title>' + ($e.children('title').text() || '') + '</original-title>') | |
| .children('title').remove(); | |
| } | |
| } | |
| }, | |
| getTitle: function() { | |
| var title, $e = this.$element, o = this.options; | |
| this.fixTitle(); | |
| if (typeof o.title == 'string') { | |
| var title_name = o.title == 'title' ? 'original-title' : o.title; | |
| if ($e.children(title_name).length){ | |
| title = $e.children(title_name).html(); | |
| } else{ | |
| title = $e.attr(title_name); | |
| } | |
| } else if (typeof o.title == 'function') { | |
| title = o.title.call($e[0]); | |
| } | |
| title = ('' + title).replace(/(^\s*|\s*$)/, ""); | |
| return title || o.fallback; | |
| }, | |
| tip: function() { | |
| if (!this.$tip) { | |
| this.$tip = $('<div class="tipsy"></div>').html('<div class="tipsy-arrow"></div><div class="tipsy-inner"></div>'); | |
| } | |
| return this.$tip; | |
| }, | |
| validate: function() { | |
| if (!this.$element[0].parentNode) { | |
| this.hide(); | |
| this.$element = null; | |
| this.options = null; | |
| } | |
| }, | |
| enable: function() { this.enabled = true; }, | |
| disable: function() { this.enabled = false; }, | |
| toggleEnabled: function() { this.enabled = !this.enabled; } | |
| }; | |
| $.fn.tipsy = function(options) { | |
| if (options === true) { | |
| return this.data('tipsy'); | |
| } else if (typeof options == 'string') { | |
| var tipsy = this.data('tipsy'); | |
| if (tipsy) tipsy[options](); | |
| return this; | |
| } | |
| options = $.extend({}, $.fn.tipsy.defaults, options); | |
| if (options.hoverlock && options.delayOut === 0) { | |
| options.delayOut = 100; | |
| } | |
| function get(ele) { | |
| var tipsy = $.data(ele, 'tipsy'); | |
| if (!tipsy) { | |
| tipsy = new Tipsy(ele, $.fn.tipsy.elementOptions(ele, options)); | |
| $.data(ele, 'tipsy', tipsy); | |
| } | |
| return tipsy; | |
| } | |
| function enter() { | |
| var tipsy = get(this); | |
| tipsy.hoverState = 'in'; | |
| if (options.delayIn === 0) { | |
| tipsy.show(); | |
| } else { | |
| tipsy.fixTitle(); | |
| setTimeout(function() { if (tipsy.hoverState == 'in') tipsy.show(); }, options.delayIn); | |
| } | |
| } | |
| function move(event) { | |
| var tipsy = get(this); | |
| tipsy.hoverState = 'in'; | |
| if (options.follow == 'x') { | |
| var arrow = $(tipsy.$tip).children('.tipsy-arrow'); | |
| if (/^[^w]w$/.test(options.gravity) && arrow.position() != null) { | |
| var x = event.pageX - ($(arrow).position().left+($(arrow).outerWidth()/2)); | |
| } else if (/^[^e]e$/.test(options.gravity) && arrow.position() != null) { | |
| var x = event.pageX - ($(arrow).position().left+($(arrow).outerWidth()/2)); | |
| } else { | |
| var x = event.pageX - ($(tipsy.$tip).outerWidth()/2); | |
| } | |
| $(tipsy.$tip).css('left', x); | |
| } else if (options.follow == 'y') { | |
| if (/^w|^e/.test(options.gravity) ) { | |
| $(tipsy.$tip).css('top', event.pageY-($(tipsy.$tip).outerHeight()/2)); | |
| } | |
| } | |
| } | |
| function leave() { | |
| var tipsy = get(this); | |
| tipsy.hoverState = 'out'; | |
| if (options.delayOut === 0) { | |
| tipsy.hide(); | |
| } else { | |
| var to = function() { | |
| if (!tipsy.tipHovered || !options.hoverlock){ | |
| if (tipsy.hoverState == 'out') tipsy.hide(); | |
| } | |
| }; | |
| setTimeout(to, options.delayOut); | |
| } | |
| } | |
| if (options.trigger != 'manual') { | |
| var binder = options.live ? 'live' : 'bind', | |
| eventIn = options.trigger == 'hover' ? 'mouseenter' : 'focus', | |
| eventOut = options.trigger == 'hover' ? 'mouseleave' : 'blur'; | |
| eventMove = 'mousemove'; | |
| this[binder](eventIn, enter)[binder](eventOut, leave)[binder](eventMove, move); | |
| } | |
| return this; | |
| }; | |
| $.fn.tipsy.defaults = { | |
| className: null, | |
| delayIn: 0, | |
| delayOut: 0, | |
| fade: false, | |
| fallback: '', | |
| gravity: 'n', | |
| html: false, | |
| live: false, | |
| offset: 0, | |
| opacity: 0.8, | |
| title: 'title', | |
| trigger: 'hover', | |
| hoverlock: false | |
| }; | |
| // Overwrite this method to provide options on a per-element basis. | |
| // For example, you could store the gravity in a 'tipsy-gravity' attribute: | |
| // return $.extend({}, options, {gravity: $(ele).attr('tipsy-gravity') || 'n' }); | |
| // (remember - do not modify 'options' in place!) | |
| $.fn.tipsy.elementOptions = function(ele, options) { | |
| return $.metadata ? $.extend({}, options, $(ele).metadata()) : options; | |
| }; | |
| $.fn.tipsy.autoNS = function() { | |
| return $(this).offset().top > ($(document).scrollTop() + $(window).height() / 2) ? 's' : 'n'; | |
| }; | |
| $.fn.tipsy.autoWE = function() { | |
| return $(this).offset().left > ($(document).scrollLeft() + $(window).width() / 2) ? 'e' : 'w'; | |
| }; | |
| /** | |
| * yields a closure of the supplied parameters, producing a function that takes | |
| * no arguments and is suitable for use as an autogravity function like so: | |
| * | |
| * @param margin (int) - distance from the viewable region edge that an | |
| * element should be before setting its tooltip's gravity to be away | |
| * from that edge. | |
| * @param prefer (string, e.g. 'n', 'sw', 'w') - the direction to prefer | |
| * if there are no viewable region edges effecting the tooltip's | |
| * gravity. It will try to vary from this minimally, for example, | |
| * if 'sw' is preferred and an element is near the right viewable | |
| * region edge, but not the top edge, it will set the gravity for | |
| * that element's tooltip to be 'se', preserving the southern | |
| * component. | |
| */ | |
| $.fn.tipsy.autoBounds = function(margin, prefer) { | |
| return function() { | |
| var dir = {ns: prefer[0], ew: (prefer.length > 1 ? prefer[1] : false)}, | |
| boundTop = $(document).scrollTop() + margin, | |
| boundLeft = $(document).scrollLeft() + margin, | |
| $this = $(this); | |
| if ($this.offset().top < boundTop) dir.ns = 'n'; | |
| if ($this.offset().left < boundLeft) dir.ew = 'w'; | |
| if ($(window).width() + $(document).scrollLeft() - $this.offset().left < margin) dir.ew = 'e'; | |
| if ($(window).height() + $(document).scrollTop() - $this.offset().top < margin) dir.ns = 's'; | |
| return dir.ns + (dir.ew ? dir.ew : ''); | |
| }; | |
| }; | |
| })(jQuery); |