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bmag / emacs-purpose

Manage Windows and Buffers According to Purposes
GNU General Public License v3.0
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Always dedicate certain purposes? #108

Closed bennofs closed 7 years ago

bennofs commented 7 years ago

Is there a setting to automatically dedicate-to-purpose any buffers if they get a certain purpose? For example, I'd like my terminal buffers to be automatically dedicated.

bmag commented 7 years ago

Only windows can be dedicated to purposes, buffers can't be dedicated to purposes. A buffer's purpose depends on its name and major-mode, and a window's purpose depends on the buffer it displays.

There isn't a simple setting to dedicate a window to a purpose, but in most cases you can use the hook purpose-display-buffer-functions. For example:

(defun dedicate-if-terminal (window)
  (when (eq (purpose-window-purpose window) 'terminal)
    (purpose-set-window-purpose-dedicated-p window t)))

(add-hook 'purpose-display-buffer-functions #'dedicate-if-terminal)

Note that this hook is only called when a buffer is displayed via display-buffer (or a function that calls it), and only if Purpose isn't configured to ignore the buffer (see purpose-action-function-ignore-buffer-names for details). I wrote "only", but it actually covers most cases.