Add mu4e-compose-in-new-window [mu4e rfe]

[jsilve24]

Is your feature request related to a problem? Please describe. Switched to EXWM and now composing in new frames is less desirable. That said, I still want a new window open so I can see images inline in the original message that I am replying to -- or browse for other emails side by side as I compose a response. Seems like mu4e-compose-in-new-window as a new option is a bit of a no brainer.

I have acctually implemented this feature and I am just asking if there is general interest such that I should put together a pull requrest or just keep it to myself.

Describe the solution you'd like Really exactly like mu4e-compose-in-new-frame but in other-window. Only two non-trivialities are (1) corner case where user specified both compose in new frame and compose in new window: I figure compose-in-new-frame should just take precedence and (2) I imagine some users will want different versions of a "new window" (e.g., some want to reuse an existing "other window" and other uses may want to create a new window). For the second one I figure can just add a new variable called mu4e-compose-in-new-window-switch-function which defaults to switch-to-buffer-other-window but allows users to customize.

Describe alternatives you've considered see above

Additional context Happy to provide if there is interest.

[djcb]

Sure, patch is welcome; probably best to create a new defcustom like mu4e-compose-target that takes a symbol, either nil (default behavior), frame, other-window.

[sje30]

Does C-x 4 m work for you if you have the following setting

(setq mail-user-agent 'mu4e-user-agent)

That should hook mu4e into the standard mechanism so that C-x m, C-x 4 m and C-x 5 m DTRT.

[djcb]

Yes, this is basically what #1454 asks for, so closing this one, one ticket is enough :-)