├── README ├── ajax-loader.gif ├── datagen.py ├── babfs.css ├── babfs.js ├── LICENSE ├── index.html ├── template.js ├── reset.css ├── LAB.min.js ├── friend_selector.css ├── friend_selector.js └── jquery-1.3.2.min.js /README: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /ajax-loader.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bcherry/babfs/master/ajax-loader.gif -------------------------------------------------------------------------------- /datagen.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | N = 50000 4 | 5 | data = [dict(name='%(x)dname name%(x)d' % {'x':x}, id='%d'%x, tabs=[bool(x%3) and 'hasapp' or 'nonapp']) for x in xrange(N)] 6 | print 'var fs_data = %s;\n' % data 7 | 8 | -------------------------------------------------------------------------------- /babfs.css: -------------------------------------------------------------------------------- 1 | body { 2 | font-family: Helvetica, Arial, sans-serif; 3 | font-size:12pt; 4 | color:#4C4C4C; 5 | } 6 | 7 | a { 8 | text-decoration:none; 9 | color:#4C4C4C; 10 | } 11 | 12 | a:hover, a:active { 13 | text-decoration:underline; 14 | } 15 | 16 | h1 { 17 | font-weight:normal; 18 | text-align:center; 19 | font-size:20pt; 20 | margin:1em 0; 21 | } 22 | 23 | #bfs { 24 | width:510px; 25 | margin:0 auto; 26 | } 27 | 28 | .tip { 29 | font-size:10pt; 30 | margin:0 auto 20px; 31 | text-align:center; 32 | width:332px; 33 | } 34 | 35 | .footer { 36 | font-size:10pt; 37 | margin:auto; 38 | width:500px; 39 | } 40 | 41 | .preloader { 42 | text-align:center; 43 | } 44 | -------------------------------------------------------------------------------- /babfs.js: -------------------------------------------------------------------------------- 1 | var n = 100; 2 | var extra_form_params = {}; 3 | var qs = window.location.search.split('?'); 4 | if (qs.length > 1) { 5 | qs = qs[1].split('&'); 6 | for (var i = 0; i < qs.length; i++) { 7 | var s = qs[i].split('='); 8 | if (s.length > 1 && s[0] == 'n') { 9 | n = parseInt(s[1]); 10 | extra_form_params.n = n; 11 | } 12 | } 13 | } 14 | 15 | fs_data = fs_data.slice(0,n); 16 | 17 | var bfs = new BFS.BetterFriendSelector({ 18 | action:"index.html", 19 | method:"GET", 20 | submit_text:"Send Friend Request", 21 | data:fs_data, 22 | limit:10, 23 | elem:$("#bfs"), 24 | pageSize:20, 25 | tabs:[{key:"hasapp",name:"Friends With App"}, {key:"nonapp",name:"Friends Without App"}], 26 | extra_form_params:extra_form_params 27 | }); 28 | 29 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2015 Ben Cherry 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | Building a Better Friend Selector 4 | 5 | 6 | 7 | 8 | 9 |

Building a Better Friend Selector

10 |
tip: add ?n=X to the querystring to test with various list sizes, this demo supports up to 50,000 friends (beware!)
11 |
i apologize for the long loading time, it's just your browser downloading my massive sample data file. it should be fine once that's cached
loading..
12 |
an experiment by ben cherry
13 | 14 | 15 | 23 | 24 | 25 | -------------------------------------------------------------------------------- /template.js: -------------------------------------------------------------------------------- 1 | (function(){ 2 | var cache = {}; 3 | 4 | this.tmpl = function tmpl(str, data){ 5 | // Figure out if we're getting a template, or if we need to 6 | // load the template - and be sure to cache the result. 7 | var fn = !/\W/.test(str) ? 8 | cache[str] = cache[str] || 9 | tmpl(document.getElementById(str).innerHTML) : 10 | 11 | // Generate a reusable function that will serve as a template 12 | // generator (and which will be cached). 13 | new Function("obj", 14 | "var p=[],print=function(){p.push.apply(p,arguments);};" + 15 | 16 | // Introduce the data as local variables using with(){} 17 | "with(obj){p.push('" + 18 | 19 | // Convert the template into pure JavaScript 20 | str 21 | .replace(/[\r\t\n]/g, " ") 22 | .split("<%").join("\t") 23 | .replace(/((^|%>)[^\t]*)'/g, "$1\r") 24 | .replace(/\t=(.*?)%>/g, "',$1,'") 25 | .split("\t").join("');") 26 | .split("%>").join("p.push('") 27 | .split("\r").join("\\'") 28 | + "');}return p.join('');"); 29 | // Provide some basic currying to the user 30 | return data ? fn( data ) : fn; 31 | }; 32 | })(); 33 | 34 | jQuery.fn.tmpl = function(str,data) {return this.html(tmpl(str,data));}; 35 | -------------------------------------------------------------------------------- /reset.css: -------------------------------------------------------------------------------- 1 | /* http://meyerweb.com/eric/tools/css/reset/ */ 2 | /* v1.0 | 20080212 */ 3 | 4 | html, body, div, span, applet, object, iframe, 5 | h1, h2, h3, h4, h5, h6, p, blockquote, pre, 6 | a, abbr, acronym, address, big, cite, code, 7 | del, dfn, em, font, img, ins, kbd, q, s, samp, 8 | small, strike, strong, sub, sup, tt, var, 9 | b, u, i, center, 10 | dl, dt, dd, ol, ul, li, 11 | fieldset, form, label, legend, 12 | table, caption, tbody, tfoot, thead, tr, th, td { 13 | margin: 0; 14 | padding: 0; 15 | border: 0; 16 | outline: 0; 17 | font-size: 100%; 18 | vertical-align: baseline; 19 | background: transparent; 20 | } 21 | body { 22 | line-height: 1; 23 | } 24 | ol, ul { 25 | list-style: none; 26 | } 27 | blockquote, q { 28 | quotes: none; 29 | } 30 | blockquote:before, blockquote:after, 31 | q:before, q:after { 32 | content: ''; 33 | content: none; 34 | } 35 | 36 | /* remember to define focus styles! */ 37 | :focus { 38 | outline: 0; 39 | } 40 | 41 | /* remember to highlight inserts somehow! */ 42 | ins { 43 | text-decoration: none; 44 | } 45 | del { 46 | text-decoration: line-through; 47 | } 48 | 49 | /* tables still need 'cellspacing="0"' in the markup */ 50 | table { 51 | border-collapse: collapse; 52 | border-spacing: 0; 53 | } 54 | 55 | .clearfix:after { 56 | content: "."; 57 | display: block; 58 | height: 0; 59 | clear: both; 60 | visibility: hidden; 61 | } 62 | -------------------------------------------------------------------------------- /LAB.min.js: -------------------------------------------------------------------------------- 1 | // LAB.js (LABjs :: Loading And Blocking JavaScript) 2 | // v0.7 (c) Kyle Simpson 3 | // MIT License 4 | (function(a){a.$LAB=function(){var o="undefined",d="string",i="head",g="body",m=true,c=false,b=a.setTimeout,k=a.document,h={head:k.getElementsByTagName(i),body:k.getElementsByTagName(g)},e={},l=null;if(typeof h[i]!==o&&h[i]!==null&&h[i].length>0){h[i]=h[i][0]}else{h[i]=null}if(typeof h[g]!==o&&h[g]!==null&&h[g].length>0){h[g]=h[g][0]}else{h[g]=null}function f(p){if(typeof p===d&&p.length>0){return/^(.*\/)?([^?\/#]*)(\?.*)?(#.*)?$/i.exec(p)[2].toLowerCase()}return""}function n(q){var p=k.getElementsByTagName("script"),r;for(r=0;r= data.length) { 14 | return null; 15 | } 16 | return data[i++]; 17 | }; 18 | })(params.data); 19 | } 20 | 21 | // Optional params 22 | var limit = params.limit !== null ? params.limit : -1; 23 | var extra_form_params = params.extra_form_params || {}; 24 | 25 | // UI Elements (assignments follow later) 26 | var filter; 27 | 28 | // Private Methods 29 | var _refreshPager = function () { 30 | if (params.pageSize) { 31 | pages = []; 32 | // Numeric paging 33 | if (params.pageSize.constructor == Number) { 34 | var visibleFriends = selector.find(".friend:not(.tabbed,.hidden,.filtered)").length; 35 | for (var i = 0; i < visibleFriends / params.pageSize; i++) { 36 | pages = pages.concat([i+1]); 37 | } 38 | // Alphabetic Paging 39 | } else if (params.pageSize == 'alpha') { 40 | pages = ['#','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']; 41 | } 42 | selector.find(".pager").tmpl(BFS.templates.pager,{pages:pages}).show(); 43 | selector.find(".page_change:first").trigger("click"); 44 | } 45 | }; 46 | var _doFilter = function() { 47 | var filter_text = filter.val(); 48 | if (filter_text == filter.siblings(".__empty_text").text()) { 49 | filter_text = ""; 50 | } 51 | selector.find(".unselected label").each(function(){ 52 | if(!$(this).text().match("^" + filter_text) && !$(this).text().match("[- \t]+" + filter_text)) { 53 | $(this).parents(".friend").addClass("filtered"); 54 | } else { 55 | $(this).parents(".friend").removeClass("filtered"); 56 | } 57 | }); 58 | _refreshPager(); 59 | }; 60 | var _resetFilter = function(){ 61 | filter.addClass("empty").val(filter.siblings(".__empty_text").text()); 62 | }; 63 | 64 | $(function() { 65 | // Render the selector 66 | selector.tmpl(BFS.templates.body,params); 67 | 68 | // Assign the UI elements 69 | filter = selector.find(".filter input"); 70 | 71 | /* Event Handlers Follow. Order matters here at some level, so be careful moving these around. */ 72 | 73 | // Friend selected event 74 | selector.find(":checkbox").change(function(){ 75 | if (limit >= 0 && that.selectedCount() > limit) { 76 | $(this).attr("checked",false); 77 | return false; 78 | } 79 | $(this).parents(".friend").addClass("hidden"); 80 | var selected_elem = $("
").addClass("selected_friend"); 81 | selected_elem.tmpl(BFS.templates.selected_elem,{"name":$(this).siblings("label").text(), "id":$(this).attr("id")}); 82 | selector.find(".selected").append(selected_elem); 83 | _refreshPager(); 84 | }); 85 | 86 | // Friend unselected event 87 | selector.find(".remove").live("click",function(){ 88 | selector.find(".unselected #" + $(this).attr("id")).attr("checked",false).parents(".friend").removeClass("hidden"); 89 | $(this).parents(".selected_friend").remove(); 90 | _refreshPager(); 91 | }); 92 | 93 | // Filter changed event 94 | filter.bind("keyup", _doFilter); 95 | 96 | // Filter preloaded text stuff 97 | _resetFilter(); 98 | filter.focus(function() { 99 | if ($(this).val() == $(this).siblings(".__empty_text").text()) { 100 | $(this).removeClass("empty").val(''); 101 | } 102 | }); 103 | filter.blur(function() { 104 | if ($(this).val() === "") { 105 | _resetFilter(); 106 | } 107 | }); 108 | selector.find(".filter .clear_filter").click(function(){ 109 | _resetFilter(); 110 | _doFilter(); 111 | }); 112 | 113 | // Paging 114 | selector.find(".page_change").live("click", function() { 115 | $(this).addClass("current_page").siblings(".current_page").removeClass("current_page"); 116 | var low_num = parseInt($(this).attr("name")) * params.pageSize; 117 | selector.find(".friend:not(.filtered,.tabbed,.hidden)").addClass("paged") 118 | .filter((low_num ? (":gt(" + (low_num-1) + ")") : "") + (":lt(" + params.pageSize + ")")) 119 | .removeClass("paged"); 120 | }); 121 | 122 | // Tab Switching 123 | selector.find(".tab").click(function() { 124 | var name = $(this).attr("name"); 125 | selector.find(".friend").removeClass("tabbed").not(".__tab_" + name).addClass("tabbed"); 126 | $(this).addClass("selected_tab").siblings(".tab").removeClass("selected_tab"); 127 | _refreshPager(); 128 | }).filter(":first").trigger("click"); // this trigger will also cause _refreshPager() to be called for the first time 129 | 130 | // Form Submission 131 | selector.find(":input[name=selector_submit]").click(function(){ 132 | selector.find("form").submit(); 133 | }); 134 | }); 135 | 136 | 137 | // Public Methods 138 | this.unselectAll = function() { 139 | selector.find(".selected .remove").click(); 140 | }; 141 | 142 | this.selectedCount = function() { 143 | return selector.find(":checkbox:checked").length; 144 | }; 145 | 146 | this.unselectedCount = function() { 147 | return selector.find(":checkbox:not(:checked)").length; 148 | } 149 | 150 | this.selectRandom = function(n) { 151 | if (typeof(n) == 'undefined') { 152 | n = limit; 153 | } 154 | var selected = this.selectedCount(); 155 | if (selected + n > limit) { 156 | n = limit - selected; 157 | } 158 | for (var i = 0; i < n; i++) { 159 | selector.find(":checkbox:not(:checked)").eq(Math.floor(Math.random()*this.unselectedCount())).click().change(); 160 | } 161 | 162 | }; 163 | }; 164 | 165 | BFS.templates = { 166 | "body":'\ 167 |
\ 168 | <% if (tabs) { %>\ 169 |
\ 170 | All Friends\ 171 | <% for (var i = 0; i < tabs.length; i++) { %>\ 172 | <%=tabs[i].name%>\ 173 | <% } %>\ 174 |
\ 175 |
\ 176 | <% } %>\ 177 |
\ 178 | \ 179 | \ 180 |
X
\ 181 |
\ 182 |
\ 183 |
\ 184 | <% var friend; %>\ 185 | <% while (friend = friendGenerator.next()) { %>\ 186 |
\ 187 | " value="<%=friend.id%>" />\ 188 | \ 189 |
\ 190 | <% } %>\ 191 | <% for (var k in extra_form_params) { %>\ 192 | \ 193 | <% } %>\ 194 |
\ 195 |
\ 196 | \ 201 | ', 202 | "selected_elem":'\ 203 |
X<%=name%>
\ 204 | ', 205 | "pager":'\ 206 |
    \ 207 | <% for (var i = 0; i < pages.length; i++) { %>\ 208 |
  • <%=pages[i]%>
    • \ 209 | <% } %>\ 210 |
\ 211 | ' 212 | }; 213 | })(); 214 | -------------------------------------------------------------------------------- /jquery-1.3.2.min.js: -------------------------------------------------------------------------------- 1 | /* 2 | * jQuery JavaScript Library v1.3.2 3 | * http://jquery.com/ 4 | * 5 | * Copyright (c) 2009 John Resig 6 | * Dual licensed under the MIT and GPL licenses. 7 | * http://docs.jquery.com/License 8 | * 9 | * Date: 2009-02-19 17:34:21 -0500 (Thu, 19 Feb 2009) 10 | * Revision: 6246 11 | */ 12 | (function(){var l=this,g,y=l.jQuery,p=l.$,o=l.jQuery=l.$=function(E,F){return new o.fn.init(E,F)},D=/^[^<]*(<(.|\s)+>)[^>]*$|^#([\w-]+)$/,f=/^.[^:#\[\.,]*$/;o.fn=o.prototype={init:function(E,H){E=E||document;if(E.nodeType){this[0]=E;this.length=1;this.context=E;return this}if(typeof E==="string"){var G=D.exec(E);if(G&&(G[1]||!H)){if(G[1]){E=o.clean([G[1]],H)}else{var I=document.getElementById(G[3]);if(I&&I.id!=G[3]){return o().find(E)}var F=o(I||[]);F.context=document;F.selector=E;return F}}else{return o(H).find(E)}}else{if(o.isFunction(E)){return o(document).ready(E)}}if(E.selector&&E.context){this.selector=E.selector;this.context=E.context}return this.setArray(o.isArray(E)?E:o.makeArray(E))},selector:"",jquery:"1.3.2",size:function(){return this.length},get:function(E){return E===g?Array.prototype.slice.call(this):this[E]},pushStack:function(F,H,E){var G=o(F);G.prevObject=this;G.context=this.context;if(H==="find"){G.selector=this.selector+(this.selector?" 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