Important Notice - Forums is archived
To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.

TUTORIALVaadin lets you build secure, UX-first PWAs entirely in Java.
Vaadin lets you build secure, UX-first PWAs entirely in Java.
Free ebook & tutorial.
Calling javascript synchronously by Enver Haase, 2 weeks ago
MenuBar: Vaadin 6 vs 7
Hi,
I'm quite disappointed with the Menubar under Vaadin 7. Two main problems :
- It's slower :o how to improve the performance ?
- html content don't work as it should. On the next exemple, if you click on the "test" menuItem, you will be redirected to my link with vaadin 6 but not with vaadin 7
Exemple:
Button b1 = new Button("add menu");
b1.addListener(new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
layout.addComponent(getMenuBar());
}
});
layout.addComponent(b1);
With the "getMenuBar" function :
private MenuBar getMenuBar() {
MenuBar menuBar = new MenuBar();
menuBar.setAutoOpen(true);
menuBar.setHtmlContentAllowed(true);
menuBar.addItem("<a href=\"https://www.google.com/\">test</a>", new Command() {
@Override
public void menuSelected(MenuItem selectedItem) {
System.out.println("click");
}
});
for (int i = 0; i < 5; i++) {
MenuItem item = menuBar.addItem("root" + new Random().nextInt(),
null);
for (int j = 0; j < 10; j++) {
MenuItem subItemJ = addRandomItem(item);
for (int k = 0; k < 10; k++) {
MenuItem subItemK = addRandomItem(subItemJ);
for (int l = 0; l < 10; l++) {
MenuItem subItemL = addRandomItem(subItemK);
for (int m = 0; m < 10; m++) {
addRandomItem(subItemL);
}
}
}
}
}
System.out.println("MenuBar created");
return menuBar;
}
private MenuItem addRandomItem(MenuItem menuItem) {
return menuItem.addItem("random" + new Random().nextInt(), null);
Any idea is welcome
Last updated on
Nobody ?
Stats on Firefox 42:
Vaadin 6:
- Server visit took 372ms
- JSON parsing took 42ms
- Processing time was 4358ms for 2710560 characters of JSON
Vaadin 7:
- Server visit took 270ms
- JSON parsing took 67ms
- Processing time was 21838ms for 2655031 characters of JSON
Last updated on
You cannot reply to this thread.