| /* |
| * 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 whose primary purpose is to facilitate interaction between an |
| * application and a user. |
| */ |
| public class Dialog extends Frame { |
| private static class DialogListenerList extends WTKListenerList<DialogListener> implements |
| DialogListener { |
| @Override |
| public void modalChanged(Dialog dialog) { |
| for (DialogListener listener : this) { |
| listener.modalChanged(dialog); |
| } |
| } |
| } |
| |
| private static class DialogStateListenerList extends WTKListenerList<DialogStateListener> |
| implements DialogStateListener { |
| @Override |
| public Vote previewDialogClose(Dialog dialog, boolean result) { |
| Vote vote = Vote.APPROVE; |
| |
| for (DialogStateListener listener : this) { |
| vote = vote.tally(listener.previewDialogClose(dialog, result)); |
| } |
| |
| return vote; |
| } |
| |
| @Override |
| public void dialogCloseVetoed(Dialog dialog, Vote reason) { |
| for (DialogStateListener listener : this) { |
| listener.dialogCloseVetoed(dialog, reason); |
| } |
| } |
| |
| @Override |
| public void dialogClosed(Dialog dialog, boolean modal) { |
| for (DialogStateListener listener : this) { |
| listener.dialogClosed(dialog, modal); |
| } |
| } |
| } |
| |
| private boolean modal; |
| private DialogCloseListener dialogCloseListener = null; |
| |
| private boolean result = false; |
| |
| private boolean closing = false; |
| |
| private DialogListenerList dialogListeners = new DialogListenerList(); |
| private DialogStateListenerList dialogStateListeners = new DialogStateListenerList(); |
| |
| public Dialog() { |
| this(true); |
| } |
| |
| public Dialog(boolean modal) { |
| this(null, null, modal); |
| } |
| |
| public Dialog(String title) { |
| this(title, true); |
| } |
| |
| public Dialog(String title, boolean modal) { |
| this(title, null, modal); |
| } |
| |
| public Dialog(Component content) { |
| this(content, true); |
| } |
| |
| public Dialog(Component content, boolean modal) { |
| this(null, content, modal); |
| } |
| |
| public Dialog(String title, Component content) { |
| this(title, content, true); |
| } |
| |
| public Dialog(String title, Component content, boolean modal) { |
| super(title, content); |
| this.modal = modal; |
| |
| installSkin(Dialog.class); |
| } |
| |
| public boolean isModal() { |
| return modal; |
| } |
| |
| public void setModal(boolean modal) { |
| if (this.modal != modal) { |
| this.modal = modal; |
| dialogListeners.modalChanged(this); |
| } |
| } |
| |
| /** |
| * Opens the dialog. |
| * |
| * @param display The display on which the dialog will be opened. |
| * @param owner The window's owner. The dialog will be modal over this |
| * window. |
| */ |
| @Override |
| public final void open(Display display, Window owner) { |
| open(display, owner, null); |
| } |
| |
| /** |
| * Opens the dialog. |
| * |
| * @param display The display on which the dialog will be opened. |
| * @param dialogCloseListenerArgument A listener that will be called when the |
| * dialog is closed. |
| */ |
| public final void open(Display display, DialogCloseListener dialogCloseListenerArgument) { |
| open(display, null, dialogCloseListenerArgument); |
| } |
| |
| /** |
| * Opens the dialog. |
| * |
| * @param owner The window's owner. The dialog will be modal over this |
| * window. |
| * @param dialogCloseListenerArgument A listener that will be called when the |
| * dialog is closed. |
| */ |
| public final void open(Window owner, DialogCloseListener dialogCloseListenerArgument) { |
| if (owner == null) { |
| throw new IllegalArgumentException(); |
| } |
| |
| open(owner.getDisplay(), owner, dialogCloseListenerArgument); |
| } |
| |
| /** |
| * Opens the dialog. |
| * |
| * @param display The display on which the dialog will be opened. |
| * @param owner The window's owner, or <tt>null</tt> if the window has no |
| * owner. Required if the dialog is modal. |
| * @param dialogCloseListenerArgument A listener that will be called when the |
| * dialog is closed. |
| */ |
| public void open(Display display, Window owner, DialogCloseListener dialogCloseListenerArgument) { |
| if (modal && owner == null) { |
| throw new IllegalArgumentException("Modal dialogs must have an owner."); |
| } |
| |
| this.dialogCloseListener = dialogCloseListenerArgument; |
| result = false; |
| |
| 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 = dialogStateListeners.previewDialogClose(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 != null && owner.isOpen()) { |
| owner.moveToFront(); |
| } |
| |
| // Notify listeners |
| dialogStateListeners.dialogClosed(this, modal); |
| |
| if (dialogCloseListener != null) { |
| dialogCloseListener.dialogClosed(this, modal); |
| dialogCloseListener = null; |
| } |
| } |
| } else { |
| if (vote == Vote.DENY) { |
| closing = false; |
| } |
| |
| dialogStateListeners.dialogCloseVetoed(this, vote); |
| } |
| } |
| } |
| |
| public DialogCloseListener getDialogCloseListener() { |
| return dialogCloseListener; |
| } |
| |
| public boolean getResult() { |
| return result; |
| } |
| |
| public ListenerList<DialogListener> getDialogListeners() { |
| return dialogListeners; |
| } |
| |
| public ListenerList<DialogStateListener> getDialogStateListeners() { |
| return dialogStateListeners; |
| } |
| } |