grid

grid.js

// Grid Made by NeCkEr =)

(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.mostraEditar = configuration.mostraEditar || false;
			this.editarClick= configuration.editarClick;
            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.dependentObservable(function () {
                var startIndex = this.pageSize * this.currentPageIndex();
                return this.data.slice(startIndex, startIndex + this.pageSize);
            }, this);

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

    // Templates used to render the grid
    var templateEngine = new ko.jqueryTmplTemplateEngine();
    templateEngine.addTemplate("ko_simpleGrid_grid", "\
                    <table class=\"ko-grid\" cellspacing=\"0\">\
                        <thead>\
                            <tr>\
                                {{each(i, columnDefinition) columns}}\
                                    <th>${ columnDefinition.headerText }</th>\
                                {{/each}}\
								{{if mostraEditar}}\
									<th>Editar</th>\
								{{/if}}\
                            </tr>\
                        </thead>\
                        <tbody>\
                            {{each(i, row) itemsOnCurrentPage()}}\
                                <tr class=\"${ i % 2 == 0 ? 'even' : 'odd' }\">\
                                    {{each(j, columnDefinition) columns}}\
                                        <td>{{html typeof columnDefinition.rowText == 'function' ? columnDefinition.rowText(row,i) : row[columnDefinition.rowText] }}</td>\
                                    {{/each}}\
									{{if mostraEditar}}\
										<td><button class='btnEditar' data-bind=\"click: function() { this.editarClick(this.itemsOnCurrentPage()[i]); }\">Editar</button></td>\
									{{/if}}\
                                </tr>\
                            {{/each}}\
                        </tbody>\
                    </table>");
    templateEngine.addTemplate("ko_simpleGrid_pageLinks", "\
                    <div class=\"ko-grid-pageLinks\">\
                        <span><!--Page:--></span>\
                        {{each(i) ko.utils.range(1, maxPageIndex)}}\
                            <a href=\"#\" data-bind=\"click: function() {  currentPageIndex(i); }, css: { selected: i == currentPageIndex() }\">\
                                ${ i + 1 }\
                            </a>\
                        {{/each}}\
                    </div>");

    // The "simpleGrid" binding
    ko.bindingHandlers.simpleGrid = {
        // This method is called to initialize the node, and will also be called again if you change what the grid is bound to
        update: function (element, viewModelAccessor) {
			var teste = function(){
				$('button').button();
			};
        	var viewModel = viewModelAccessor();
            element.innerHTML = "";

            var gridContainer = element.appendChild(document.createElement("DIV"));
            ko.renderTemplate("ko_simpleGrid_grid", viewModel, { templateEngine: templateEngine, afterRender: teste }, gridContainer, "replaceNode");

            var pageLinksContainer = element.appendChild(document.createElement("DIV"));
            ko.renderTemplate("ko_simpleGrid_pageLinks", viewModel, { templateEngine: templateEngine }, pageLinksContainer, "replaceNode");
         	
			
        }

        

    };
})();