| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you under the Apache License, |
| * Version 2.0 (the "License"); you may not use this file except in |
| * compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.pivot.wtk; |
| |
| import org.apache.pivot.util.ListenerList; |
| import org.apache.pivot.util.Vote; |
| |
| /** |
| * Window class representing a "sheet". A sheet behaves like a dialog that is |
| * modal only over a window's content component. |
| */ |
| public class Sheet extends Window { |
| private static class SheetStateListenerList extends WTKListenerList<SheetStateListener> |
| implements SheetStateListener { |
| @Override |
| public Vote previewSheetClose(Sheet sheet, boolean result) { |
| Vote vote = Vote.APPROVE; |
| |
| for (SheetStateListener listener : this) { |
| vote = vote.tally(listener.previewSheetClose(sheet, result)); |
| } |
| |
| return vote; |
| } |
| |
| @Override |
| public void sheetCloseVetoed(Sheet sheet, Vote reason) { |
| for (SheetStateListener listener : this) { |
| listener.sheetCloseVetoed(sheet, reason); |
| } |
| } |
| |
| @Override |
| public void sheetClosed(Sheet sheet) { |
| for (SheetStateListener listener : this) { |
| listener.sheetClosed(sheet); |
| } |
| } |
| } |
| |
| private SheetCloseListener sheetCloseListener = null; |
| private boolean result = false; |
| |
| private boolean closing = false; |
| |
| private SheetStateListenerList sheetStateListeners = new SheetStateListenerList(); |
| |
| /** |
| * Creates a new sheet. |
| */ |
| public Sheet() { |
| this(null); |
| } |
| |
| /** |
| * Creates a new sheet with an initial content component. |
| * |
| * @param content The sheet's content component. |
| */ |
| public Sheet(Component content) { |
| super(content); |
| |
| installSkin(Sheet.class); |
| } |
| |
| public final void open(Window owner, SheetCloseListener sheetCloseListenerArgument) { |
| if (owner == null) { |
| throw new IllegalArgumentException("owner is null"); |
| } |
| |
| open(owner.getDisplay(), owner, sheetCloseListenerArgument); |
| } |
| |
| @Override |
| public final void open(Display display, Window owner) { |
| open(display, owner, null); |
| } |
| |
| public void open(Display display, Window owner, SheetCloseListener sheetCloseListenerArgument) { |
| if (owner == null) { |
| throw new IllegalArgumentException("Sheets must have an owner."); |
| } |
| |
| this.sheetCloseListener = sheetCloseListenerArgument; |
| |
| super.open(display, owner); |
| } |
| |
| @Override |
| public boolean isClosing() { |
| return closing; |
| } |
| |
| @Override |
| public final void close() { |
| close(false); |
| } |
| |
| public void close(boolean resultArgument) { |
| if (!isClosed()) { |
| closing = true; |
| |
| Vote vote = sheetStateListeners.previewSheetClose(this, resultArgument); |
| |
| if (vote == Vote.APPROVE) { |
| Window owner = getOwner(); |
| |
| super.close(); |
| |
| closing = super.isClosing(); |
| |
| if (isClosed()) { |
| this.result = resultArgument; |
| |
| // Move the owner to the front |
| if (owner.isOpen()) { |
| owner.moveToFront(); |
| } |
| |
| // Notify listeners |
| sheetStateListeners.sheetClosed(this); |
| |
| if (sheetCloseListener != null) { |
| sheetCloseListener.sheetClosed(this); |
| sheetCloseListener = null; |
| } |
| } |
| } else { |
| if (vote == Vote.DENY) { |
| closing = false; |
| } |
| |
| sheetStateListeners.sheetCloseVetoed(this, vote); |
| } |
| } |
| } |
| |
| public SheetCloseListener getSheetCloseListener() { |
| return sheetCloseListener; |
| } |
| |
| public boolean getResult() { |
| return result; |
| } |
| |
| public ListenerList<SheetStateListener> getSheetStateListeners() { |
| return sheetStateListeners; |
| } |
| } |