blob: 78ea8d607e61dbff78a33bcd2bbdeb23051d7e66 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
// Copyright (C) 2008 The Android Open Source Project
//
// Licensed 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 com.google.gwtexpui.user.client;
import com.google.gwt.event.logical.shared.ResizeEvent;
import com.google.gwt.event.logical.shared.ResizeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.Window;
/** A DialogBox that automatically re-centers itself if the window changes */
public class AutoCenterDialogBox extends PluginSafeDialogBox {
private HandlerRegistration recenter;
public AutoCenterDialogBox() {
this(false);
}
public AutoCenterDialogBox(final boolean autoHide) {
this(autoHide, true);
}
public AutoCenterDialogBox(final boolean autoHide, final boolean modal) {
super(autoHide, modal);
}
@Override
public void show() {
if (recenter == null) {
recenter = Window.addResizeHandler(new ResizeHandler() {
@Override
public void onResize(final ResizeEvent event) {
final int w = event.getWidth();
final int h = event.getHeight();
AutoCenterDialogBox.this.onResize(w, h);
}
});
}
super.show();
}
@Override
protected void onUnload() {
if (recenter != null) {
recenter.removeHandler();
recenter = null;
}
super.onUnload();
}
/**
* Invoked when the outer browser window resizes.
* <p>
* Subclasses may override (but should ensure they still call super.onResize)
* to implement custom logic when a window resize occurs.
*
* @param width new browser window width
* @param height new browser window height
*/
protected void onResize(final int width, final int height) {
if (isAttached()) {
center();
}
}
}
|
