Merge remote branch 'origin/upstream' into tempbranch

frontend/client/src/autotest/common/spreadsheet/SpreadsheetSelectionManager.java

+package autotest.common.spreadsheet;
+
+import autotest.common.Utils;
+import autotest.common.spreadsheet.Spreadsheet.CellInfo;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+
+// TODO: hopefully some of this could be combined with autotest.common.table.SelectionManager using
+// generics
+// TODO: get rid of header selection
+public class SpreadsheetSelectionManager {
+    private Spreadsheet spreadsheet;
+    private Collection<CellInfo> selectedCells = new HashSet<CellInfo>();
+    private SpreadsheetSelectionListener listener;
+    
+    public static interface SpreadsheetSelectionListener {
+        public void onCellsSelected(List<CellInfo> cells);
+        public void onCellsDeselected(List<CellInfo> cells);
+    }
+    
+    public SpreadsheetSelectionManager(Spreadsheet spreadsheet, 
+                                       SpreadsheetSelectionListener listener) {
+        this.spreadsheet = spreadsheet;
+        this.listener = listener;
+    }
+    
+    public void toggleSelected(CellInfo cell) {
+        if (selectedCells.contains(cell)) {
+            deselectCell(cell);
+            notifyDeselected(Utils.wrapObjectWithList(cell));
+        } else {
+            selectCell(cell);
+            notifySelected(Utils.wrapObjectWithList(cell));
+        }
+    }
+
+    private void selectCell(CellInfo cell) {
+        selectedCells.add(cell);
+        spreadsheet.setHighlighted(cell, true);
+    }
+
+    private void deselectCell(CellInfo cell) {
+        selectedCells.remove(cell);
+        spreadsheet.setHighlighted(cell, false);
+    }
+    
+    public List<CellInfo> getSelectedCells() {
+        return new ArrayList<CellInfo>(selectedCells);
+    }
+    
+    public boolean isEmpty() {
+        return selectedCells.isEmpty();
+    }
+    
+    public void clearSelection() {
+        List<CellInfo> cells = getSelectedCells();
+        for (CellInfo cell : cells) {
+            deselectCell(cell);
+        }
+        notifyDeselected(cells);
+    }
+
+    public void selectAll() {
+        List<CellInfo> selectedCells = new ArrayList<CellInfo>();
+        for (CellInfo[] row : spreadsheet.dataCells) {
+            for (CellInfo cell : row) {
+                if (cell == null || cell.isEmpty()) {
+                    continue;
+                }
+                selectCell(cell);
+                selectedCells.add(cell);
+            }
+        }
+        notifySelected(selectedCells);
+    }
+    
+    private void notifyDeselected(List<CellInfo> cells) {
+        if (listener != null) {
+            listener.onCellsDeselected(cells);
+        }
+    }
+
+    private void notifySelected(List<CellInfo> selectedCells) {
+        if (listener != null) {
+            listener.onCellsSelected(selectedCells);
+        }
+    }
+}