Set Keyboardfocus to TextEditor

1

Im trying to spawn a TextEditor and immediately give it keyboardfocus:

void BrowserEntry::showRenameEditor() {
    m_rename_editor.setVisible(true);
    m_rename_editor.setText(getText());
    m_rename_editor.grabKeyboardFocus();
}

I am doing this in two different locations in my plugin. The first one works fine (is triggered by a button click). The second one does not (is triggered by a PopupMenu).

It will get focus very briefly and then loses it again (the cursor blinks exactly once - then it is gone).

My best bet is that after the PopupMenu closes, there is still a MouseEvent happening that gives focus to the component lying under the PopupMenu.

However TextEditor::onFocusLost() is never called.

Is there a good way to debug this? Or does somebody know what could be the problem here?
Thanks!

2

I’m struggling with a similar issue, although I haven’t really tried to solve it yet.

Have you tried using a timer to grab focus? If there’s a way to check for focus then you could even have it loop until it succeeds.

3

Nice idea! I just tried it and delaying the grabKeyboardFocus() by 50 msec does the trick.

Feels pretty hackish a solution though. If I find a “clean” way I’ll post it here. But if no problems arise this will do I guess.

Edit: Also there is bool Component::hasKeyboardFocus(). Although in my case it returned true right after setting it once, so it wasn’t much use.

4

Yeah, it does seem hackish, although I’m glad it works.
But keyboard focus is quite terrible to manage, I often get assertion faults due to the calls, when components are hidden, etc.
I don’t know of any more elegant implementations. Maybe grabbing focus delayed could be a good thing to add into JUCE…