1 files changed, 95 insertions, 0 deletions
diff --git a/emacs/.config/emacs-v2/lisp/kj-popup.el b/emacs/.config/emacs-v2/lisp/kj-popup.el
new file mode 100644
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+++ b/emacs/.config/emacs-v2/lisp/kj-popup.el
@@ -0,0 +1,95 @@
+;;; -*- lexical-binding: t; -*-
+;;; Window placement
+;;; TODO: Test popper.el.
+;; (global-set-key (kbd "C-`") #'window-toggle-side-windows)
+;; (global-set-key (kbd "M-`") #'kj/popup-toggle-override)
+;; (setq window-sides-slots '(0 0 2 2))  ; 2 right side windows
+(setq switch-to-buffer-obey-display-actions t)
+(setq switch-to-buffer-in-dedicated-window 'pop)
+(setq even-window-sizes 'width-only)
+(defvar kj/popup-override nil)
+
+(defun kj/popup-clear-overrides ()
+  (interactive)
+  (dolist (buffer (buffer-list))
+    (with-current-buffer buffer
+      (kill-local-variable 'kj/popup-override))))
+
+(defun kj/popup-toggle-override ()
+  (interactive)
+  (if (local-variable-p 'kj/popup-override)
+      (kill-local-variable 'kj/popup-override)
+    (setq-local kj/popup-override
+                (not (kj/popup-buffer-base (buffer-name)))))
+  (let ((buffer (buffer-name)))
+    (switch-to-prev-buffer)
+    (switch-to-buffer buffer)))
+
+(defun kj/popup-buffer-base (buffer &optional condition)
+  (or
+   (s-matches-p
+    (rx (| "*Help*"
+           "*info*"
+           (seq "*Messages*")
+           (seq "*Warnings*")
+           (seq "*Backtrace*")
+           (seq "*eldoc " (* anything) "*")
+           (seq "*WoMan " (* anything) "*")
+           (seq "*man " (* anything) "*")
+           (seq "fig: " (* anything))
+           (seq "*htop*" (* anything))
+           (seq "*Proced*" (* anything))
+           (seq "*eshell" (* anything))
+           (seq "*shell" (* anything))
+           "*Occur*")) buffer)
+   (with-current-buffer buffer
+     (apply #'derived-mode-p
+            '(magit-mode
+              compilation-mode
+              shell-mode
+              comint-mode
+              Custom-mode       ; For customization
+              fig-commit-mode)))))
+
+(defun kj/popup-buffer (buffer &optional condition)
+  (with-current-buffer buffer
+    (if (local-variable-p 'kj/popup-override)
+        kj/popup-override
+      (kj/popup-buffer-base buffer condition))))
+
+;; (setq transient-display-buffer-action
+;;       '(display-buffer-in-best-side
+;;         (slot . -1)
+;;         (inhibit-same-window . t)
+;;         (window-parameters
+;;          (no-other-window . t))))
+
+(defun kj/display-new-popup (buffer alist)
+    (let ((popup-window
+         (display-buffer-in-direction
+          buffer
+          (append (if (> (frame-width) 160)
+                      '((direction . rightmost)
+                        (window-width . 80))
+                    '((direction . bottom)))))))
+      (set-window-parameter popup-window 'kj/popup t)
+      popup-window))
+
+(defun kj/find-popup-window ()
+  (seq-find
+   (lambda (w)
+     (window-parameter w 'kj/popup))
+   (window-list)))
+
+(defun display-popup-buffer (buffer alist)
+  (let ((window (kj/find-popup-window)))
+    (if window
+        (window--display-buffer buffer window 'reuse alist)
+      (kj/display-new-popup buffer alist))))
+
+;; (add-to-list 'display-buffer-alist
+;;              `(kj/popup-buffer
+;;                (display-popup-buffer)
+;;                (slot . 0)))
+
+(provide 'kj-popup)