[nongnu] elpa/moe-theme b135f24d5a 344/352: undelete moe-theme-switcher

[ELPA Syncer]

branch: elpa/moe-theme
commit b135f24d5ad4af171f27954b8d4cd6112e0300e0
Author: ono ono <azazabc123@gmail.com>
Commit: ono ono <azazabc123@gmail.com>

    undelete moe-theme-switcher
---
 moe-theme-switcher.el | 147 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)

diff --git a/moe-theme-switcher.el b/moe-theme-switcher.el
new file mode 100644
index 0000000000..c49a348208
--- /dev/null
+++ b/moe-theme-switcher.el
@@ -0,0 +1,147 @@
+;; moe-theme-switcher.el
+;; Author: kuanyui (azazabc123@gmail.com)
+;; Date: 2013/05/11 11:39
+;;
+;; This file is not a part of GNU Emacs,
+;; but this file is released under GPL v3.
+
+;; TODO: This program need to be refactored.
+(require 'moe-dark-theme)
+(require 'moe-light-theme)
+(require 'moe-theme)
+(require 'solar)
+
+(defvar moe-theme-switch-by-sunrise-and-sunset t
+"Automatically switch between dark and light moe-theme.
+
+If this value is nil, moe-theme will switch at fixed time (06:00 and 18:00).
+
+If this value is t and both calendar-latitude and calendar-longitude are set
+properly, the switching will be triggered at the sunrise and sunset time of the
+local calendar.
+
+Take Keelung, Taiwan(25N,121E) for example, you can set like this:
+
+       (setq calendar-latitude +25)
+       (setq calendar-longitude +121)"
+)
+
+(defvar moe-theme-which-enabled nil
+  "Variable indicate which theme (moe-dark or light) is being used.")
+
+(defun moe-load-theme (switch-to)
+  "Avoid unnecessary load-theme and screen flashing in GUI version Emacs"
+  (cond ((equal switch-to 'light)
+         (if (not (equal moe-theme-which-enabled 'light))
+           (progn (moe-light)
+                  (setq moe-theme-which-enabled 'light)))) ;[FIXME] Maybe 
unnecessary
+        ((equal switch-to 'dark)
+         (if (not (equal moe-theme-which-enabled 'dark))
+           (progn (moe-dark)
+                  (setq moe-theme-which-enabled 'dark)))))) ;[FIXME] Maybe 
unnecessary
+
+(defun switch-at-fixed-time ()
+  (let ((now (string-to-number (format-time-string "%H"))))
+    (if (and (>= now 06) (<= now 18))
+        (moe-load-theme 'light)
+      (moe-load-theme 'dark))
+    nil))
+
+;; (Thanks for letoh!)
+;; Fix strange bahavior of sunrise-sunset when buffer's width is too narrow.
+(defun get-sunrise-sunset-string ()
+  "get the real result from `sunrise-sunset'"
+  (save-window-excursion
+    (let ((regex "[0-9]+:[0-9]+[ap]m")
+          (s (sunrise-sunset))
+          (buf (get-buffer "*temp*")))
+      (unless (and (stringp s)
+                   (string-match-p regex s))
+        (when buf
+          (with-current-buffer buf
+            (let* ((s1 (buffer-string))
+                   (s2 (if (string-match-p regex s1)
+                           s1 nil)))
+              (setq s s2)
+              (kill-buffer buf)))))
+      s)))
+
+;; Convert am/pm to 24hr and save to 24h/sunrise & 24h/set
+;; Excute every 24 hr
+(defun convert-time-format-of-sunrise-and-sunset ()
+  (let (rise_set a b c d e f)
+    (setq rise_set (get-sunrise-sunset-string))
+    (if (string-match "0:00 hours daylight" rise_set) ;If polar-night
+        (progn
+          (setq 24h/sunrise 'polar-night
+                24h/sunset 'polar-night))
+      (if (string-match "24:00 hours daylight" rise_set) ;If midnight-sun
+          (progn
+            (setq 24h/sunrise 'midnight-sun
+                  24h/sunset 'midnight-sun))
+        (progn                          ;Convert 12hr to 24hr
+          (string-match 
"\\([0-9][0-9]?\\):\\([0-9][0-9]\\)\\([ap]m\\).+\\([0-9][0-9]?\\):\\([0-9][0-9]\\)\\([ap]m\\)"
 rise_set)
+          (setq a (string-to-number (match-string 1 rise_set))
+                b (string-to-number (match-string 2 rise_set))
+               c (match-string 3 rise_set)
+               d (string-to-number (match-string 4 rise_set))
+               e (string-to-number (match-string 5 rise_set))
+               f (match-string 6 rise_set))
+         (if (equal c "pm")
+             (setq 24h/sunrise (list (+ 12 a) b))
+           (setq 24h/sunrise (list a b)))
+         (if (equal f "pm")
+             (setq 24h/sunset (list (+ 12 d) e))
+           (setq 24h/sunset (list d e))))))))
+
+;; Excute every minute.
+(defun switch-by-locale ()
+  (if (equal 24h/sunrise 'polar-night)  ;If polar-night...moe-dark!
+      (moe-load-theme 'dark)
+    (if (equal 24h/sunrise 'midnight-sun) ;If midnight-sun...moe-light!
+        (moe-load-theme 'light)
+      (progn
+       (let ((now (list (string-to-number (format-time-string "%H"))
+                        (string-to-number (format-time-string "%M")))))
+         (if (and (or                        ;magic-logic [tm]
+                   (> (car now) (car 24h/sunrise))
+                   (and
+                    (= (car now) (car 24h/sunrise))
+                    (>= (second now) (second 24h/sunrise))))
+                  (or
+                   (< (car now) (car 24h/sunset))
+                   (and
+                    (= (car now) (car 24h/sunset))
+                    (< (second now) (second 24h/sunset)))))
+             (moe-load-theme 'light)
+           (moe-load-theme 'dark)
+           ))))))
+
+(defun moe-theme-auto-switch ()
+  "Automatically switch between dark and light moe-theme."
+  (interactive)
+  (if (boundp '24h/sunrise)
+      (switch-by-locale)
+    (switch-at-fixed-time))
+  )
+
+(if (and
+     (boundp 'calendar-longitude)
+     (boundp 'calendar-latitude)
+     (eql moe-theme-switch-by-sunrise-and-sunset t))
+    (progn
+      (convert-time-format-of-sunrise-and-sunset)
+      (run-with-timer 0 (* 60 60 24) 
'convert-time-format-of-sunrise-and-sunset))
+  ()
+  )
+
+(setq moe-timer (run-with-timer 0 (* 1 60) 'moe-theme-auto-switch))
+
+;; [FIXME] A minor-mode to enable/disable moe-theme-switcher
+(defun moe-theme-switcher-disable ()
+  (interactive)
+  (cancel-timer moe-timer))
+
+(moe-theme-auto-switch)
+
+(provide 'moe-theme-switcher)