jao-minibuffer: back to no overlays and mode-line lib

2 files changed, 137 insertions, 107 deletions

diff --git a/lib/eos/jao-minibuffer-mode-line.el b/lib/eos/jao-minibuffer-mode-line.el
new file mode 100644
index 0000000..6f69630
--- /dev/null
+++ b/lib/eos/jao-minibuffer-mode-line.el
@@ -0,0 +1,106 @@
+;;; jao-minibuffer-mode-line.el --- mode-line info in the minibuffer  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2022  jao
+
+;; Author: jao <mail@jao.io>
+;; Keywords: convenience
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Using jao-minibuffer to display mode-line info in the minibuffer.
+
+;;; Code:
+
+(require 'jao-minibuffer)
+
+(defvar exwm-class-name nil)
+
+(defvar jao-minibuffer--mode-line-position
+  '(exwm-class-name
+    ("")
+    ("%n %2c %l " (:eval (format "%d" (line-number-at-pos (point-max)))))))
+
+(defvar jao-minibuffer--mode-line-bid
+  '(:eval (cond ((derived-mode-p 'gnus-group-mode
+                                 'gnus-article-mode
+                                 'gnus-summary-mode)
+                 mode-line-buffer-identification)
+                ((derived-mode-p 'circe-channel-mode)
+                 (format "%s [%d]" (buffer-name) (length (circe-channel-nicks))))
+                (t "%b"))))
+
+(defvar jao-minibuffer--mode-line-format
+  `("%[" (:propertize ,jao-minibuffer--mode-line-bid face jao-themes-f00) "%]"
+    (:propertize " (" face jao-themes-dimm)
+    (:propertize mode-name face jao-themes-f00)
+    (:propertize ("" minor-mode-alist) face jao-themes-f11)
+    (:propertize ")" face jao-themes-dimm)
+    (:propertize (vc-mode vc-mode) face jao-themes-f10)
+    (:propertize mode-line-position face jao-themes-f12)
+    " "
+    global-mode-string
+    (:propertize (" %Z%*%+ " (current-input-method current-input-method-title))
+                 face jao-themes-warning)
+    (:propertize "·" display "")))
+
+(defvar jao-minibuffer--original-modeline nil)
+(defvar jao-minibuffer--original-line-face nil)
+(defvar jao-minibuffer--original-line-inactive-face nil)
+
+(defun jao-minibuffer-mode-line-adjust-faces ()
+  (let ((bg (frame-parameter nil 'background-color)))
+    (set-face-attribute 'mode-line nil :box nil :height 1
+                        :background bg :foreground bg
+                        :overline jao-minibuffer-active-buffer-line-color
+                        :underline jao-minibuffer-inactive-buffer-line-color
+                        :extend t)
+    (set-face-attribute 'mode-line-inactive nil :box nil :height 1
+                        :background bg :foreground bg
+                        :overline bg
+                        :underline jao-minibuffer-inactive-buffer-line-color
+                        :extend t)))
+
+;;;###autoload
+(defun jao-minibuffer-add-mode-line (&optional order)
+  (interactive)
+  (setq jao-minibuffer--original-line-face
+        (get 'mode-line 'saved-face))
+  (setq jao-minibuffer--original-line-inactive-face
+        (get 'mode-line-inactive 'saved-face))
+  (setq jao-minibuffer--original-modeline mode-line-format)
+  (setq-default mode-line-format '(" "))
+  (setq-default mode-line-position jao-minibuffer--mode-line-position)
+  (dolist (b (buffer-list))
+    (with-current-buffer b (setq-local mode-line-format '(" "))))
+  (jao-minibuffer-add-variable 'jao-minibuffer--mode-line-format (or order 90))
+  (jao-minibuffer-mode-line-adjust-faces))
+
+;;;###autoload
+(defun jao-minibuffer-remove-mode-line ()
+  (interactive)
+  (face-spec-set 'mode-line jao-minibuffer--original-line-face)
+  (face-spec-set 'mode-line-inactive jao-minibuffer--original-line-inactive-face)
+  (setq-default mode-line-format jao-minibuffer--original-modeline)
+  (dolist (b (buffer-list))
+    (with-current-buffer b (setq-local mode-line-format
+                                       jao-minibuffer--original-modeline)))
+  (setq jao-minibuffer-info
+        (remove '(:eval jao-minibuffer--mode-line-format)
+                jao-minibuffer-info)))
+
+
+(provide 'jao-minibuffer-mode-line)
+;;; jao-minibuffer-mode-line.el ends here
diff --git a/lib/eos/jao-minibuffer.el b/lib/eos/jao-minibuffer.el
index 515f31b..2e58f24 100644
--- a/lib/eos/jao-minibuffer.el
+++ b/lib/eos/jao-minibuffer.el
@@ -20,7 +20,7 @@
 
 ;;; Commentary:
 
-;; Simple asynchronous display of information in the minibuffer and echo area.
+;; Simple asynchronous display of information in the minibuffer.
 
 ;;; Code:
 
@@ -34,37 +34,6 @@
 (defvar jao-minibuffer-inactive-buffer-line-color "grey25")
 
 (defconst jao-minibuffer--name " *Minibuf-0*")
-(defvar jao-minibuffer--overlays nil)
-
-(defun jao-minibuffer--create-overlays ()
-  (dolist (buf '(" *Echo Area 0*" " *Echo Area 1*"))
-    (with-current-buffer buf
-      (remove-overlays (point-min) (point-max))
-      (push (make-overlay (point-min) (point-max) nil nil t)
-            jao-minibuffer--overlays))))
-
-(defun jao-minibuffer--remove-overlays ()
-  (mapc 'delete-overlay jao-minibuffer--overlays)
-  (setq jao-minibuffer--overlays nil))
-
-(defun jao-minibuffer--set-overlays (txt)
-  (let* ((txt (concat txt jao-minibuffer-right-margin))
-         (wid (string-width txt))
-         (align `(space :align-to (- right-fringe ,wid)))
-         (spc (propertize " " 'cursor 1 'display align))
-         (txt (concat spc txt)))
-    ;; Remove any dead overlays from the minibuffer from the beginning of the list
-    (while (null (overlay-buffer (car jao-minibuffer--overlays)))
-      (pop jao-minibuffer--overlays))
-
-    ;; Add the correct text to each echo bar overlay
-    (dolist (o jao-minibuffer--overlays)
-      (when (overlay-buffer o) (overlay-put o 'after-string txt)))))
-
-(defun jao-minibuffer--minibuffer-setup ()
-  (push (make-overlay (point-max) (point-max) nil t t) jao-minibuffer--overlays)
-  (overlay-put (car jao-minibuffer--overlays) 'priority 1)
-  (jao-minibuffer-refresh))
 
 (defun jao-minibuffer--trim (s w)
   (if (<= (string-width (or s "")) w)
@@ -85,22 +54,21 @@
                                    (reverse (or info jao-minibuffer-info)))))
              " "))
 
-(defun jao-minibuffer--aligned (left msg)
-  (let* ((msg (or msg (jao-minibuffer--format-info)))
+(defun jao-minibuffer--aligned (&optional w)
+  (let* ((msg (jao-minibuffer--format-info))
          (msg (cond (jao-minibuffer-align-right-p (string-trim msg))
                     (t (string-trim-left msg))))
-         (w (string-width left)))
-    (unless (and (string-empty-p left) (string-empty-p msg))
+         (msg (propertize msg :minibuffer-message t)))
+    (unless (string-empty-p msg)
       (let* ((mw (jao-minibuffer--width))
-             (w (- mw (mod w mw) (string-width jao-minibuffer-right-margin) -1))
-             (right (if (> w 0) (jao-minibuffer--trim msg w) "")))
-        (concat left right jao-minibuffer-right-margin)))))
+             (w (- mw (mod w mw) (string-width jao-minibuffer-right-margin) -1)))
+        (if (> w 0) (jao-minibuffer--trim msg w) "")))))
 
 (defun jao-minibuffer--insert (msg)
-  (let ((hack (and nil (derived-mode-p 'pdf-view-mode 'doc-view-mode))))
+  (let ((hack (derived-mode-p 'pdf-view-mode 'doc-view-mode)))
     (with-current-buffer jao-minibuffer--name
       (delete-region (point-min) (point-max))
-      (insert (or msg ""))
+      (insert msg)
       (when hack (other-window 1) (other-window -1)))))
 
 (defun jao-minibuffer--strip-prev (msg)
@@ -109,37 +77,21 @@
       (string-trim (substring msg 0 n))
     msg))
 
-(defvar exwm-class-name nil)
-
-(defvar jao-minibuffer--mode-line-position
-  '(exwm-class-name
-    ("")
-    ("%n %2c %l " (:eval (format "%d" (line-number-at-pos (point-max)))))))
-
-(defvar jao-minibuffer--mode-line-bid
-  '(:eval (cond ((derived-mode-p 'gnus-group-mode
-                                 'gnus-article-mode
-                                 'gnus-summary-mode)
-                 mode-line-buffer-identification)
-                ((derived-mode-p 'circe-channel-mode)
-                 (format "%s [%d]" (buffer-name) (length (circe-channel-nicks))))
-                (t "%b"))))
-
-(defvar jao-minibuffer--mode-line-format
-  `("%[" (:propertize ,jao-minibuffer--mode-line-bid face jao-themes-f00) "%]"
-    (:propertize " (" face jao-themes-dimm)
-    (:propertize mode-name face jao-themes-f00)
-    (:propertize ("" minor-mode-alist) face jao-themes-f11)
-    (:propertize ")" face jao-themes-dimm)
-    (:propertize (vc-mode vc-mode) face jao-themes-f10)
-    (:propertize mode-line-position face jao-themes-f12)
-    " "
-    global-mode-string
-    (:propertize (" %Z%*%+ " (current-input-method current-input-method-title))
-                 face jao-themes-warning)
-    (:propertize "·" display "")))
-
-(defvar jao-minibuffer--original-modeline nil)
+(defun jao-minibuffer--format-msg (msg)
+   (let* ((msgs (mapcar #'jao-minibuffer--strip-prev (split-string msg "\n")))
+          (prefix (when-let (p (string-join (butlast msgs) "\n"))
+                    (unless (string-blank-p p) (concat p "\n"))))
+          (msg (car (last msgs)))
+          (msg (if (string-blank-p msg) msg (concat msg "  ")))
+          (w (string-width msg)))
+     (if jao-minibuffer-align-right-p
+         (concat prefix msg (jao-minibuffer--aligned w))
+       (concat prefix (jao-minibuffer--aligned (+ 3 w)) "   " msg))))
+
+(defun jao-minibuffer--set-message (msg)
+  (when jao-minibuffer-mode (jao-minibuffer--format-msg (or msg ""))))
+
+(setq set-message-function #'jao-minibuffer--set-message)
 
 (defun jao-minibuffer--add-variable (list-name variable-name &optional order)
   (let ((v `(:eval ,variable-name)))
@@ -154,29 +106,6 @@
 (defun jao-minibuffer-add-msg-variable (variable-name &optional order)
   (jao-minibuffer--add-variable 'jao-minibuffer-msg-info variable-name order))
 
-(defun jao-minibuffer-adjust-mode-line-faces ()
-  (let ((bg (frame-parameter nil 'background-color)))
-    (set-face-attribute 'mode-line nil :box nil :height 1
-                        :background bg :foreground bg
-                        :overline jao-minibuffer-active-buffer-line-color
-                        :underline jao-minibuffer-inactive-buffer-line-color
-                        :extend t)
-    (set-face-attribute 'mode-line-inactive nil :box nil :height 1
-                        :background bg :foreground bg
-                        :overline bg
-                        :underline jao-minibuffer-inactive-buffer-line-color
-                        :extend t)))
-
-;;;###autoload
-(defun jao-minibuffer-add-mode-line (order)
-  (setq jao-minibuffer--original-modeline mode-line-format)
-  (setq-default mode-line-format '(" "))
-  (setq-default mode-line-position jao-minibuffer--mode-line-position)
-  (dolist (b (buffer-list))
-    (with-current-buffer b (setq-local mode-line-format '(" "))))
-  (jao-minibuffer-add-variable 'jao-minibuffer--mode-line-format order)
-  (jao-minibuffer-adjust-mode-line-faces))
-
 ;;;###autoload
 (define-minor-mode jao-minibuffer-mode
   "Show minibuffer status"
@@ -184,27 +113,22 @@
   (if jao-minibuffer-mode
       (progn (advice-add 'select-window :after #'jao-minibuffer-refresh)
              (advice-add 'force-mode-line-update :after #'jao-minibuffer-refresh)
-             (jao-minibuffer--create-overlays)
-             ;; (add-hook 'minibuffer-setup-hook #'jao-minibuffer--minibuffer-setup)
+             (setq clear-message-function #'jao-minibuffer-refresh)
              (jao-minibuffer-refresh))
     (advice-remove 'select-window #'jao-minibuffer-refresh)
     (advice-remove 'force-mode-line-update #'jao-minibuffer-refresh)
-    (remove-hook 'minibuffer-setup-hook #'jao-minibuffer--minibuffer-setup)
-    (jao-minibuffer--remove-overlays)
+    (setq set-message-function nil)
+    (setq clear-message-function nil)
     (jao-minibuffer--insert "")))
 
 ;;;###autoload
 (defun jao-minibuffer-refresh (&rest _ignore)
   (interactive)
   (when jao-minibuffer-mode
-    (let ((jao-minibuffer-mode nil)
-          (window-selection-change-functions nil)
-          (right (jao-minibuffer--format-info))
-          (left (jao-minibuffer--format-info jao-minibuffer-msg-info)))
-      (jao-minibuffer--set-overlays right)
-      (jao-minibuffer--insert (jao-minibuffer--aligned left right)))))
-
-;; (add-hook 'window-selection-change-functions #'jao-minibuffer-refresh)
+    (let* ((jao-minibuffer-mode nil)
+           (msg (jao-minibuffer--format-info jao-minibuffer-msg-info))
+           (msg (jao-minibuffer--format-msg (or msg ""))))
+      (jao-minibuffer--insert (or msg "")))))
 
 (provide 'jao-minibuffer)
 ;;; jao-minibuffer.el ends here