2 * Copyright 2011 GRNET S.A. All rights reserved.
4 * Redistribution and use in source and binary forms, with or
5 * without modification, are permitted provided that the following
8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following
12 * 2. Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
24 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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33 * or implied, of GRNET S.A.
35 package gr.grnet.pithos.web.client;
37 import com.google.gwt.dom.client.NativeEvent;
38 import com.google.gwt.event.dom.client.ClickEvent;
39 import com.google.gwt.event.dom.client.ClickHandler;
40 import com.google.gwt.event.dom.client.KeyCodes;
41 import com.google.gwt.user.client.Event.NativePreviewEvent;
42 import com.google.gwt.user.client.ui.AbstractImagePrototype;
43 import com.google.gwt.user.client.ui.Button;
44 import com.google.gwt.user.client.ui.DialogBox;
45 import com.google.gwt.user.client.ui.HTML;
46 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
47 import com.google.gwt.user.client.ui.HorizontalPanel;
48 import com.google.gwt.user.client.ui.VerticalPanel;
52 * A dialog for requesting confirmation from the user.
54 public abstract class ConfirmationDialog extends DialogBox {
57 * The widget's constructor.
59 * @param message the message to display
60 * @param buttonLabel the label of the confirmation button
62 public ConfirmationDialog(String message, String buttonLabel) {
63 // Set the dialog's caption.
64 setText("Confirmation");
65 setAnimationEnabled(true);
66 // Create a VerticalPanel to contain the label and the buttons.
67 VerticalPanel outer = new VerticalPanel();
68 HorizontalPanel buttons = new HorizontalPanel();
70 HTML text = new HTML("<table><tr><td rowspan='2'> " +
71 AbstractImagePrototype.create(MessagePanel.images.warn()).getHTML() +
72 "</td><td>" + message + "</td></tr></table>");
73 text.setStyleName("pithos-warnMessage");
76 // Create the 'Update' button, along with a listener that hides the
77 // dialog when the button is clicked and renames the file.
78 Button ok = new Button(buttonLabel, new ClickHandler() {
81 public void onClick(@SuppressWarnings("unused") ClickEvent event) {
86 ok.getElement().setId("confirmation.ok");
88 buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);
89 // Create the 'Cancel' button, along with a listener that hides the
90 // dialog when the button is clicked.
91 Button cancel = new Button("Cancel", new ClickHandler() {
94 public void onClick(@SuppressWarnings("unused") ClickEvent event) {
99 cancel.getElement().setId("confirmation.cancel");
101 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
102 buttons.setSpacing(8);
103 buttons.setStyleName("pithos-warnMessage");
104 outer.setStyleName("pithos-warnMessage");
106 outer.setCellHorizontalAlignment(text, HasHorizontalAlignment.ALIGN_CENTER);
107 outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);
112 protected void onPreviewNativeEvent(NativePreviewEvent preview) {
113 super.onPreviewNativeEvent(preview);
114 NativeEvent evt = preview.getNativeEvent();
115 if (evt.getType().equals("keydown"))
116 // Use the popup's key preview hooks to close the dialog when either
117 // enter or escape is pressed.
118 switch (evt.getKeyCode()) {
119 case KeyCodes.KEY_ENTER:
123 case KeyCodes.KEY_ESCAPE:
130 public abstract void confirm();
132 public abstract void cancel();