ToolWindows: main focus component, and resizing

IntelliJ Platform
1

Question 1

I noticed that when I open my ToolWindow, it focuses on the first focusable component of the JPanel that it contains.
Is there a way to control which JComponent gets the focus?
My JPanel has a dropdown select, and then a text field. I want the text field to be the one that gets focused.

Question 2

Regarding resizing my ToolWindow which is on the right-side of the IDE, for some reason:

  • When enlarging it, it appropriately gets my JPanel and its content to expand and take up more space
  • But when shrinking it, the JPanel doesn’t appear to become smaller: instead all components get their right-side cropped

Any ideas what might be causing this?

2
  1. com.intellij.ui.content.Content#setPreferredFocusableComponent
  2. What else would you expect?
1 Like
3

This worked great, thanks!

The content expands properly when the toolwindow grows in size.
I’d expect the content to shrink back down properly when the toolwindow reduces in size.

4

AFAIU that would depend on the LayoutManager and its settings for your main panel.