Sistema de Like/Dislake similar a YouTube

Sistema de Like/Dislike similar a YouTube

Sistema de Reputación/Likes Avanzado para Foroactivo (Tutorial #1)

CSS:

Código:: .fa_vote, .fa_voted, .fa_count { font-size:12px; font-family:Verdana, Arial, Helvetica, Sans-serif; display:inline-block !important; width:auto !important; transition:300ms; } .fa_voted, .fa_vote:hover { opacity:0.4 } .fa_voted { cursor:default } .fa_count { font-weight:bold; margin:0 3px; cursor:default; } .fa_positive { color:#4A0 } .fa_negative { color:#A44 } .fa_votebar, .fa_votebar_inner { background:#C44; height:3px; } .fa_votebar_inner { background:#4A0; transition:300ms; }

JS:

Código:: $(function() { // General Configuration of the plugin var config = { position_left : true, // true for left || false for right negative_vote : true, // true for negative votes || false for positive only vote_bar : true, // display a small bar under the vote buttons // button config icon_plus : '<img src="http://i18.servimg.com/u/f18/18/21/41/30/plus10.png" alt="+"/>', icon_minus : '<img src="http://i18.servimg.com/u/f18/18/21/41/30/minus10.png" alt="-"/>', // language config title_plus : 'Me gusta el post de %{USERNAME}\ ', title_minus : 'No me gusta el post de %{USERNAME}\ ', title_like_singular : '%{VOTES} ', title_like_plural : '%{VOTES} ', title_dislike_singular : '%{VOTES} ', title_dislike_plural : '%{VOTES} ', title_vote_bar : ' ' }, // function bound to the onclick handler of the vote buttons submit_vote = function() { var next = this.nextSibling, // the counter next to the vote button that was clicked box = this.parentNode, bar = box.getElementsByTagName('DIV'), vote = box.getElementsByTagName('A'), mode = /eval=plus/.test(this.href) ? 1 : 0, i = 0, j = vote.length, pos, neg, percent; // submit the vote asynchronously $.get(this.href, function() { next.innerHTML = +next.innerHTML + 1; // add to the vote count next.title = next.title.replace(/(\d+)/, function(M, $1) { return +$1 + 1 }); pos = +vote[0].nextSibling.innerHTML; neg = vote[1] ? +vote[1].nextSibling.innerHTML : 0; percent = pos == 0 ? '0%' : pos == neg ? '50%' : Math.round(pos / (pos + neg) * 100) + '%'; if (bar[0]) { bar[0].style.display = ''; bar[0].firstChild.style.width = percent; box.title = box.title.replace(/\d+\/\d+/, pos + '/' + ( pos + neg )).replace(/$\d+%$/, '(' + percent + ')'); } }); // revoke voting capabilities on the post once the vote is cast for (; i < j; i++) { vote[i].href = '#'; vote[i].className = vote[i].className.replace(/fa_vote/, 'fa_voted'); vote[i].onclick = function() { return false }; } return false; }, vote = $('.vote'), i = 0, j = vote.length, version = $('.bodylinewidth')[0] ? 0 : document.getElementById('wrap') ? 1 : $('.pun')[0] ? 2 : document.getElementById('ipbwrapper') ? 3 : 'badapple', // version check // version data so we don't have to redefine these arrays during the loop vdata = { tag : ['SPAN', 'LI', 'SPAN', 'LI'][version], name : ['.name', '.postprofile dt > strong', '.username', '.popmenubutton'][version], actions : ['.post-options', '.profile-icons', '.post-options', '.posting-icons'][version], }, post, plus, minus, n_pos, n_neg, title_pos, title_neg, li, ul, bar, button, total, percent, span, pseudo, vote_bar; // startup variables for later use in the loop // prevent execution if the version cannot be determined if (version == 'badapple') { if (window.console) console.warn('This plugin is not optimized for your forum version. Please contact the support for further assistance.'); return; } for (; i < j; i++) { post = $(vote[i]).parentsUntil('.post').parent()[0]; bar = $('.vote-bar', vote[i])[0]; // vote bar button = $('.vote-button', vote[i]); // plus and minus buttons pseudo = $(vdata.name, post).text() || 'MISSING_STRING'; // username of the poster ul = $(vdata.actions, post)[0]; // post actions li = document.createElement(vdata.tag); // vote system container li.className = 'fa_reputation'; if (li.tagName == 'SPAN') li.style.display = 'inline-block'; // calculate votes if (bar) { total = +bar.title.replace(/.*?\((\d+).*/, '$1'); percent = +bar.title.replace(/.*?(\d+)%.*/, '$1'); n_pos = Math.round(total * (percent / 100)); n_neg = total - n_pos; } else { n_pos = 0; n_neg = 0; } // set up negative and positive titles with the correct grammar, votes, and usernames title_pos = (n_pos == 1 ? config.title_like_singular : config.title_like_plural).replace(/%\{USERNAME\}/g, pseudo).replace(/%\{VOTES\}/g, n_pos); title_neg = (n_neg == 1 ? config.title_dislike_singular : config.title_dislike_plural).replace(/%\{USERNAME\}/g, pseudo).replace(/%\{VOTES\}/g, n_neg); // define the vote counts li.innerHTML = '<span class="fa_count fa_positive" title="' + title_pos + '">' + n_pos + '</span>' + (config.negative_vote ? ' <span class="fa_count fa_negative" title="' + title_neg + '">' + n_neg + '</span>' : ''); span = li.getElementsByTagName('SPAN'); // get the vote count containers for use as insertion points // create positive vote button plus = document.createElement('A'); plus.href = button[0] ? button[0].firstChild.href : '#'; plus.onclick = button[0] ? submit_vote : function() { return false }; plus.className = 'fa_vote' + (button[0] ? '' : 'd') + ' fa_plus'; plus.innerHTML = config.icon_plus; plus.title = (button[0] ? config.title_plus : title_pos).replace(/%\{USERNAME\}/g, pseudo); span[0] && li.insertBefore(plus, span[0]); // create negative vote button if (config.negative_vote) { minus = document.createElement('A'); minus.href = button[1] ? button[1].firstChild.href : '#'; minus.onclick = button[1] ? submit_vote : function() { return false }; minus.className = 'fa_vote' + (button[1] ? '' : 'd') + ' fa_minus'; minus.innerHTML = config.icon_minus; minus.title = (button[1] ? config.title_minus : title_neg).replace(/%\{USERNAME\}/g, pseudo); span[1] && li.insertBefore(minus, span[1]); } // create vote bar if (config.vote_bar) { vote_bar = document.createElement('DIV'); vote_bar.className = 'fa_votebar'; vote_bar.innerHTML = '<div class="fa_votebar_inner" style="width:' + percent + '%;"></div>'; vote_bar.style.display = bar ? '' : 'none'; li.title = config.title_vote_bar.replace(/%\{USERNAME\}/, pseudo).replace(/%\{VOTES\}/, n_pos + '/' + (n_pos + n_neg)).replace(/%\{PERCENT\}/, '(' + percent + '%)'); li.appendChild(vote_bar); } // finally insert the vote system and remove the default one config.position_left ? ul.insertBefore(li, ul.firstChild) : ul.appendChild(li); vote[i].parentNode.removeChild(vote[i]); } });