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jquery.tipsy.js 4.27 KiB
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(function($) {
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    $.fn.tipsy = function(options) {
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        options = $.extend({}, $.fn.tipsy.defaults, options);
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        return this.each(function() {
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            var opts = $.fn.tipsy.elementOptions(this, options);
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            $(this).hover(function() {
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                $.data(this, 'cancel.tipsy', true);
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                var tip = $.data(this, 'active.tipsy');
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                if (!tip) {
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                    tip = $('<div class="tipsy"><div class="tipsy-inner"/></div>');
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                    tip.css({position: 'absolute', zIndex: 100000});
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                    $.data(this, 'active.tipsy', tip);
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                }
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                if ($(this).attr('title') || typeof($(this).attr('original-title')) != 'string') {
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                    $(this).attr('original-title', $(this).attr('title') || '').removeAttr('title');
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                }
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                var title;
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                if (typeof opts.title == 'string') {
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                    title = $(this).attr(opts.title == 'title' ? 'original-title' : opts.title);
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                } else if (typeof opts.title == 'function') {
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                    title = opts.title.call(this);
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                }
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                tip.find('.tipsy-inner')[opts.html ? 'html' : 'text'](title || opts.fallback);
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                var pos = $.extend({}, $(this).offset(), {width: this.offsetWidth, height: this.offsetHeight});
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                tip.get(0).className = 'tipsy'; // reset classname in case of dynamic gravity
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                tip.remove().css({top: 0, left: 0, visibility: 'hidden', display: 'block'}).appendTo(document.body);
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                var actualWidth = tip[0].offsetWidth, actualHeight = tip[0].offsetHeight;
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                var gravity = (typeof opts.gravity == 'function') ? opts.gravity.call(this) : opts.gravity;
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                switch (gravity.charAt(0)) {
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                    case 'n':
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                        tip.css({top: pos.top + pos.height, left: pos.left + pos.width / 2 - actualWidth / 2}).addClass('tipsy-north');
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                        break;
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                    case 's':
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                        tip.css({top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2}).addClass('tipsy-south');
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                        break;
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                    case 'e':
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                        tip.css({top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth}).addClass('tipsy-east');
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                        break;
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                    case 'w':
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                        tip.css({top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width}).addClass('tipsy-west');
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                        break;
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                }
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                if (opts.fade) {
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                    tip.css({opacity: 0, display: 'block', visibility: 'visible'}).animate({opacity: 0.8});
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                } else {
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                    tip.css({visibility: 'visible'});
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                }
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            }, function() {
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                $.data(this, 'cancel.tipsy', false);
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                var self = this;
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                setTimeout(function() {
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                    if ($.data(this, 'cancel.tipsy')) return;
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                    var tip = $.data(self, 'active.tipsy');
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                    if (opts.fade) {
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                        tip.stop().fadeOut(function() { $(this).remove(); });
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                    } else {
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                        tip.remove();
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} }, 100); }); }); }; // 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.defaults = { fade: false, fallback: '', gravity: 'n', html: false, title: 'title' }; $.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'; }; })(jQuery);