first step for manual merging of the slickgrid branch

[myslice.git] / third-party / slickgrid-2.1 / plugins / slick.rowselectionmodel.js

diff --git a/third-party/slickgrid-2.1/plugins/slick.rowselectionmodel.js b/third-party/slickgrid-2.1/plugins/slick.rowselectionmodel.js
new file mode 100644 (file)
index 0000000..28e7e43
--- /dev/null
+++ b/third-party/slickgrid-2.1/plugins/slick.rowselectionmodel.js
@@ -0,0 +1,187 @@
+(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);
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