Header icon broken since 0.61.0

[panki27]

As already reported in Discord: since upgrading to textual==0.61.0, clicking the header icon does no longer open the command palette.
The palette can still be summoned by hitting the keyboard shortcut.

MRE:

from textual import __version__
from textual.app import App, ComposeResult
from textual.widgets import Label, Header

class CommandPaletteApp(App[None]):

    def compose(self) -> ComposeResult:
        yield Header()
        yield Label(f"This is Textual v{__version__}")

if __name__ == "__main__":
    CommandPaletteApp().run()

Clicking the header icon with the mouse results in the following message being logged:

<action> 'command_palette' has no target. Could not find methods '_action_command_palette' or 'action_command_palette'

Darren and Dave were able to narrow it down do this line of code:

textual/src/textual/widgets/_header.py

Line 37 in 964d988

await self.run_action("command_palette")

That should now be:

await self.run_action("app.command_palette")

[github-actions]

We found the following entry in the FAQ which you may find helpful:

• How do I center a widget in a screen?

Feel free to close this issue if you found an answer in the FAQ. Otherwise, please give us a little time to review.

This is an automated reply, generated by FAQtory

[TomJGooding]

TIL that clicking the header icon will open the command pallette.

[willmcgugan]

Fixed in 0.63.0

[github-actions]

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