Unicode Character Browser

Displays a pagable list of Unicode Characters

by Troy Alford

HTML

<wrapper>
    <bag></bag>
    <pager></pager>
</wrapper>

CSS

wrapper {
    border: 1px solid #eee;
    border-radius: 5px;
    display: block;
    padding: 0;
}
wrapper>bag {
    display: block;
    padding: 2px;
}
wrapper>pager {
    background-color: #f6f6f6;
    border-top: 1px solid #ddd;
    display: block;
    height: 35px;
    padding: 3px;
}
wrapper>bag>char {
    border: 1px solid #eee;
    cursor: pointer;
    display: inline-block;
    font-size: 16px;
    height: 25px;
    line-height: 25px;
    margin: 3px;
    overflow: hidden;
    padding: 5px;
    text-align: center;
    vertical-align: middle;
    width: 25px;
}
wrapper>bag>char:hover {
    background: #eeeeff;
    font-weight: bold;
    font-size: 28px;
    height: 37px;
    line-height: 37px;
    margin: 0;
    padding: 2px;
    width: 37px;
}

wrapper>pager>span {
    color: #666;
    float: right;
    font-size: 10pt;
    height: 35px;
    line-height: 16px;
    padding: 2px 5px;
    text-align: right;
}
wrapper>pager>span.clicked-info {
    color: #333;
    float: none;
    font-weight: bold;
    font-size: 28px;
    font-weight: bold;
    position: relative;
    left: 60px;
    top: 8px;
    text-shadow: 1px 1px #ccc;
}
wrapper>pager>span.display-info {
    font-family: Calibri, Arial, Verdana, Tahoma;
}

btn {
    background-color: rgba(0, 0, 0, .2);
    border-radius: 3px;
    border-width: 0 0 0 7px;
    box-shadow: inset 1px 1px 0 rgba(0,0,0,.1), inset 0 -1px 0 rgba(0,0,0,.07);
    color: #444;
    display: inline-block;
    font-size: 16px;
    font-weight: bold;
    height: 25px;
    line-height: 24px;
    opacity: .55;
    padding: 5px;
    text-align: center;
    vertical-align: middle;
    width: 25px;
}
btn[disabled] {
    background: #fff;
    color: #d6d6d6;
}
btn:not([disabled]):hover {
    background: #dfdfdf;
    box-shadow: 2px 2px 0 rgba(0,0,0,.18), 0 -1px 0 rgba(0,0,0,.15);
    cursor: pointer;
    user-select: none;
}

JavaScript

$(function() {
    var $bag = $('wrapper>bag');
    var $pager = $('wrapper>pager');
    
    var page = 0;
    var pageSize = 120;
    var maxChar = parseInt('ffff', 16);
    var maxPage = Math.ceil(maxChar / pageSize);
    
    var $firstBtn = $('<btn />')
        .html('&#8920;')
        .appendTo($pager)
        .bind('click', function () {
            page = 0;
            showPage(page, pageSize);
        });
    var $prevBtn = $('<btn />')
        .html('&#8810;')
        .appendTo($pager)
        .bind('click', function () {
            if (page > 0) {
                page--;
                showPage(page, pageSize);
            }
        });
    var $nextBtn = $('<btn />')
        .html('&#8811;')
        .appendTo($pager)
        .bind('click', function () {
            if (page < maxPage) {
                page++;
                showPage(page, pageSize);
            }
        });
    var $lastBtn = $('<btn />')
        .html('&#8921;')
        .appendTo($pager)
        .bind('click', function () {
            page = maxPage;
            showPage(page, pageSize);
        });
    
    var $clicked = $('<span />')
        .addClass('clicked-info')
        .html('&nbsp;')
        .appendTo($pager);
    
    $('bag>char').on('click', function (ev) {
        var $char = $(ev.target);
        $clicked.html('\'' + $char.html() + '\' = &amp;#' + $char.attr('hex') + '; = \\' + $char.attr('code'));
    });
    
    
    var $status = $('<span />')
        .html('&nbsp;')
        .appendTo($pager)
        .addClass('display-info');
    
    var setup = function() {
        showPage(page, pageSize);
    };

    var showPage = function(page, pageSize) {
        var min = 0;
        
        var start = min + (pageSize * page);

        $bag.empty();
        
        for (var i = 0; i <= pageSize - 1; i++) {
            var code = start + i;
            $('<char />')
                .html('&#' + code + ';')
                .attr('code', code)
               ...