diff options
Diffstat (limited to 'app/assets/javascripts/plugins/jquery.tipsy.js')
| -rw-r--r-- | app/assets/javascripts/plugins/jquery.tipsy.js | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/app/assets/javascripts/plugins/jquery.tipsy.js b/app/assets/javascripts/plugins/jquery.tipsy.js new file mode 100644 index 000000000..f95c063fd --- /dev/null +++ b/app/assets/javascripts/plugins/jquery.tipsy.js @@ -0,0 +1,258 @@ +// tipsy, facebook style tooltips for jquery +// version 1.0.0a +// (c) 2008-2010 jason frame [jason@onehackoranother.com] +// released under the MIT license + +(function($) { + + function maybeCall(thing, ctx) { + return (typeof thing == 'function') ? (thing.call(ctx)) : thing; + }; + + function isElementInDOM(ele) { + while (ele = ele.parentNode) { + if (ele == document) return true; + } + return false; + }; + + function Tipsy(element, options) { + this.$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.$element[0].offsetWidth, + height: this.$element[0].offsetHeight + }); + + 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}); + } + } + }, + + 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'); + } + }, + + getTitle: function() { + var title, $e = this.$element, o = this.options; + this.fixTitle(); + var title, o = this.options; + if (typeof o.title == 'string') { + title = $e.attr(o.title == 'title' ? 'original-title' : o.title); + } else if (typeof o.title == 'function') { + title = o.title.call($e[0]); + } + title = ('' + title).replace(/(^\s*|\s*$)/, ""); + return title || o.fallback; + }, + + tip: function() { + if (!this.$tip) { + this.$tip = $('<div class="tipsy"></div>').html('<div class="tipsy-arrow"></div><div class="tipsy-inner"></div>'); + this.$tip.data('tipsy-pointee', this.$element[0]); + } + return this.$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); + + 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 leave() { + var tipsy = get(this); + tipsy.hoverState = 'out'; + if (options.delayOut == 0) { + tipsy.hide(); + } else { + setTimeout(function() { if (tipsy.hoverState == 'out') tipsy.hide(); }, options.delayOut); + } + }; + + if (!options.live) this.each(function() { get(this); }); + + if (options.trigger != 'manual') { + var binder = options.live ? 'live' : 'bind', + eventIn = options.trigger == 'hover' ? 'mouseenter' : 'focus', + eventOut = options.trigger == 'hover' ? 'mouseleave' : 'blur'; + this[binder](eventIn, enter)[binder](eventOut, leave); + } + + 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' + }; + + $.fn.tipsy.revalidate = function() { + $('.tipsy').each(function() { + var pointee = $.data(this, 'tipsy-pointee'); + if (!pointee || !isElementInDOM(pointee)) { + $(this).remove(); + } + }); + }; + + // 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); |