blob: 82e1594f294b67a969ac3dbb854b4900fd341a9f (
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
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
package com.vaadin.tests.push;
import java.util.ArrayList;
import java.util.List;
import com.vaadin.annotations.Push;
import com.vaadin.server.VaadinRequest;
import com.vaadin.tests.components.AbstractTestUI;
import com.vaadin.ui.Button;
import com.vaadin.ui.Grid;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;
@Push
public class MakeComponentVisibleWithPush extends AbstractTestUI {
private VerticalLayout rootLayout;
private Grid<Person> grid;
private SearchThread searchThread;
private List<Person> data;
@Override
protected void setup(VaadinRequest request) {
data = new ArrayList<>();
rootLayout = new VerticalLayout();
setContent(rootLayout);
grid = new Grid<Person>();
grid.addColumn(Person::getName);
grid.setVisible(false);
rootLayout.addComponent(grid);
Button doUpdateButton = new Button("Do Update", event -> {
try {
doUpdate();
} catch (InterruptedException e) {
}
});
rootLayout.addComponent(doUpdateButton);
}
private void doUpdate() throws InterruptedException {
cancelSuggestThread();
grid.setVisible(false);
grid.setItems(data);
UI ui = UI.getCurrent();
searchThread = new SearchThread(ui);
searchThread.start();
}
class SearchThread extends Thread {
private UI ui;
public SearchThread(UI ui) {
this.ui = ui;
}
@Override
public void run() {
data = new ArrayList<Person>(data);
data.add(new Person("Person " + (data.size() + 1)));
if (!searchThread.isInterrupted()) {
ui.access(() -> {
grid.setItems(data);
grid.setVisible(true);
});
}
}
}
private void cancelSuggestThread() {
if ((searchThread != null) && !searchThread.isInterrupted()) {
searchThread.interrupt();
searchThread = null;
}
}
class Person {
private String name;
public Person(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
}
|
