JSFiddle - React, Tailwind, and code Playground

by ozzymcduff

HTML

<script src="http://cloud.github.com/downloads/SteveSanderson/knockout/knockout-2.2.0.js"></script>
<div class='liveExample'> 
    
    <div data-bind='simpleGrid: gridViewModel'> </div>
     
    <button data-bind='click: addItem'>
        Add item
    </button>
     
    <button data-bind='click: sortByName'>
        Sort by name
    </button>
     
    <button data-bind='click: jumpToFirstPage, enable: gridViewModel.currentPageIndex'>
        Jump to first page
    </button>
    
</div>

CSS

body { font-family: arial; font-size: 14px; }
.liveExample { padding: 1em; background-color: #EEEEDD; border: 1px solid #CCC; max-width: 655px; }
.liveExample input { font-family: Arial; }
.liveExample b { font-weight: bold; }
.liveExample p { margin-top: 0.9em; margin-bottom: 0.9em; }
.liveExample select[multiple] { width: 100%; height: 8em; }
.liveExample h2 { margin-top: 0.4em; }

.ko-grid { margin-bottom: 1em; width: 25em; border: 1px solid silver; background-color:White; }
.ko-grid th { text-align:left; background-color: Black; color:White; }
.ko-grid td, th { padding: 0.4em; }
.ko-grid tr:nth-child(odd) { background-color: #DDD; }
.ko-grid-pageLinks { margin-bottom: 1em; }
.ko-grid-pageLinks a { padding: 0.5em; }
.ko-grid-pageLinks a.selected { background-color: Black; color: White; }
.liveExample { height:20em; overflow:auto } /* Mobile Safari reflows pages slowly, so fix the height to avoid the need for reflows */

li { list-style-type: disc; margin-left: 20px; }

JavaScript

(function () {
    // Private function
    function getColumnsForScaffolding(data) {
        if ((typeof data.length !== 'number') || data.length === 0) {
            return [];
        }
        var columns = [];
        for (var propertyName in data[0]) {
            columns.push({ headerText: propertyName, rowText: propertyName });
        }
        return columns;
    }

    ko.simpleGrid = {
        // Defines a view model class you can use to populate a grid
        viewModel: function (configuration) {
            this.data = configuration.data;
            this.currentPageIndex = ko.observable(0);
            this.pageSize = configuration.pageSize || 5;

            // If you don't specify columns configuration, we'll use scaffolding
            this.columns = configuration.columns || getColumnsForScaffolding(ko.utils.unwrapObservable(this.data));

            this.itemsOnCurrentPage = ko.computed(function () {
                var startIndex = this.pageSize * this.currentPageIndex();
                return this.data.slice(startIndex, startIndex + this.pageSize);
            }, this);

            this.maxPageIndex = ko.computed(function () {
                return Math.ceil(ko.utils.unwrapObservable(this.data).length / this.pageSize) - 1;
            }, this);
        }
    };

    // Templates used to render the grid
    var templateEngine = new ko.nativeTemplateEngine();

    templateEngine.addTemplate = function(templateName, templateMarkup) {
        document.write("<script type='text/html' id='" + templateName + "'>" + templateMarkup + "<" + "/script>");
    };

    templateEngine.addTemplate("ko_simpleGrid_grid", "\
                    <table class=\"ko-grid\" cellspacing=\"0\">\
                        <thead>\
                            <tr data-bind=\"foreach: columns\">\
                               <th data-bind=\"text: headerText\"></th>\
                            </tr>\
                        </thead>\
                        <tbody...