--- /dev/null
+(function ($) {
+ // register namespace
+ $.extend(true, window, {
+ "Slick": {
+ "RowSelectionModel": RowSelectionModel
+ }
+ });
+
+ function RowSelectionModel(options) {
+ var _grid;
+ var _ranges = [];
+ var _self = this;
+ var _handler = new Slick.EventHandler();
+ var _inHandler;
+ var _options;
+ var _defaults = {
+ selectActiveRow: true
+ };
+
+ function init(grid) {
+ _options = $.extend(true, {}, _defaults, options);
+ _grid = grid;
+ _handler.subscribe(_grid.onActiveCellChanged,
+ wrapHandler(handleActiveCellChange));
+ _handler.subscribe(_grid.onKeyDown,
+ wrapHandler(handleKeyDown));
+ _handler.subscribe(_grid.onClick,
+ wrapHandler(handleClick));
+ }
+
+ function destroy() {
+ _handler.unsubscribeAll();
+ }
+
+ function wrapHandler(handler) {
+ return function () {
+ if (!_inHandler) {
+ _inHandler = true;
+ handler.apply(this, arguments);
+ _inHandler = false;
+ }
+ };
+ }
+
+ function rangesToRows(ranges) {
+ var rows = [];
+ for (var i = 0; i < ranges.length; i++) {
+ for (var j = ranges[i].fromRow; j <= ranges[i].toRow; j++) {
+ rows.push(j);
+ }
+ }
+ return rows;
+ }
+
+ function rowsToRanges(rows) {
+ var ranges = [];
+ var lastCell = _grid.getColumns().length - 1;
+ for (var i = 0; i < rows.length; i++) {
+ ranges.push(new Slick.Range(rows[i], 0, rows[i], lastCell));
+ }
+ return ranges;
+ }
+
+ function getRowsRange(from, to) {
+ var i, rows = [];
+ for (i = from; i <= to; i++) {
+ rows.push(i);
+ }
+ for (i = to; i < from; i++) {
+ rows.push(i);
+ }
+ return rows;
+ }
+
+ function getSelectedRows() {
+ return rangesToRows(_ranges);
+ }
+
+ function setSelectedRows(rows) {
+ setSelectedRanges(rowsToRanges(rows));
+ }
+
+ function setSelectedRanges(ranges) {
+ _ranges = ranges;
+ _self.onSelectedRangesChanged.notify(_ranges);
+ }
+
+ function getSelectedRanges() {
+ return _ranges;
+ }
+
+ function handleActiveCellChange(e, data) {
+ if (_options.selectActiveRow && data.row != null) {
+ setSelectedRanges([new Slick.Range(data.row, 0, data.row, _grid.getColumns().length - 1)]);
+ }
+ }
+
+ function handleKeyDown(e) {
+ var activeRow = _grid.getActiveCell();
+ if (activeRow && e.shiftKey && !e.ctrlKey && !e.altKey && !e.metaKey && (e.which == 38 || e.which == 40)) {
+ var selectedRows = getSelectedRows();
+ selectedRows.sort(function (x, y) {
+ return x - y
+ });
+
+ if (!selectedRows.length) {
+ selectedRows = [activeRow.row];
+ }
+
+ var top = selectedRows[0];
+ var bottom = selectedRows[selectedRows.length - 1];
+ var active;
+
+ if (e.which == 40) {
+ active = activeRow.row < bottom || top == bottom ? ++bottom : ++top;
+ } else {
+ active = activeRow.row < bottom ? --bottom : --top;
+ }
+
+ if (active >= 0 && active < _grid.getDataLength()) {
+ _grid.scrollRowIntoView(active);
+ _ranges = rowsToRanges(getRowsRange(top, bottom));
+ setSelectedRanges(_ranges);
+ }
+
+ e.preventDefault();
+ e.stopPropagation();
+ }
+ }
+
+ function handleClick(e) {
+ var cell = _grid.getCellFromEvent(e);
+ if (!cell || !_grid.canCellBeActive(cell.row, cell.cell)) {
+ return false;
+ }
+
+ var selection = rangesToRows(_ranges);
+ var idx = $.inArray(cell.row, selection);
+
+ if (!e.ctrlKey && !e.shiftKey && !e.metaKey) {
+ return false;
+ }
+ else if (_grid.getOptions().multiSelect) {
+ if (idx === -1 && (e.ctrlKey || e.metaKey)) {
+ selection.push(cell.row);
+ _grid.setActiveCell(cell.row, cell.cell);
+ } else if (idx !== -1 && (e.ctrlKey || e.metaKey)) {
+ selection = $.grep(selection, function (o, i) {
+ return (o !== cell.row);
+ });
+ _grid.setActiveCell(cell.row, cell.cell);
+ } else if (selection.length && e.shiftKey) {
+ var last = selection.pop();
+ var from = Math.min(cell.row, last);
+ var to = Math.max(cell.row, last);
+ selection = [];
+ for (var i = from; i <= to; i++) {
+ if (i !== last) {
+ selection.push(i);
+ }
+ }
+ selection.push(last);
+ _grid.setActiveCell(cell.row, cell.cell);
+ }
+ }
+
+ _ranges = rowsToRanges(selection);
+ setSelectedRanges(_ranges);
+ e.stopImmediatePropagation();
+
+ return true;
+ }
+
+ $.extend(this, {
+ "getSelectedRows": getSelectedRows,
+ "setSelectedRows": setSelectedRows,
+
+ "getSelectedRanges": getSelectedRanges,
+ "setSelectedRanges": setSelectedRanges,
+
+ "init": init,
+ "destroy": destroy,
+
+ "onSelectedRangesChanged": new Slick.Event()
+ });
+ }
+})(jQuery);
\ No newline at end of file