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Add saved status icons

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This commit is contained in:
Matthew L. Fidler 2016-02-19 12:45:02 -06:00
parent f186fda5f3
commit a3979e332c
1 changed files with 136 additions and 27 deletions
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163
mode-icons.el
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@ -73,6 +73,45 @@ ICON should be a file name with extension. The result is the
absolute path to ICON."
(concat mode-icons--directory "/icons/" icon))
(defmacro mode-icons-save-buffer-state (&rest body)
"Eval BODY,
then restore the buffer state under the assumption that no significant
modification has been made in BODY. A change is considered
significant if it affects the buffer text in any way that isn't
completely restored again. Changes in text properties like `face' or
`syntax-table' are considered insignificant. This macro allows text
properties to be changed, even in a read-only buffer.
This macro should be placed around all calculations which set
\"insignificant\" text properties in a buffer, even when the buffer is
known to be writeable. That way, these text properties remain set
even if the user undoes the command which set them.
This macro should ALWAYS be placed around \"temporary\" internal buffer
changes \(like adding a newline to calculate a text-property then
deleting it again\), so that the user never sees them on his
`buffer-undo-list'.
However, any user-visible changes to the buffer \(like auto-newlines\)
must not be within a `ergoemacs-save-buffer-state', since the user then
wouldn't be able to undo them.
The return value is the value of the last form in BODY.
This was stole/modified from `c-save-buffer-state'"
`(let* ((modified (buffer-modified-p)) (buffer-undo-list t)
(inhibit-read-only t) (inhibit-point-motion-hooks t)
before-change-functions after-change-functions
deactivate-mark
buffer-file-name buffer-file-truename ; Prevent primitives checking
; for file modification
)
(unwind-protect
(progn ,@body)
(and (not modified)
(buffer-modified-p)
(set-buffer-modified-p nil)))))
(defmacro mode-icons-define-font (font)
"Define FONT for `mode-icons'."
`(progn
@ -153,6 +192,8 @@ absolute path to ICON."
("Narrow" #xf066 FontAwesome)
(read-only #xf023 FontAwesome)
(writable #xf09c FontAwesome)
(save #xf0c7 FontAwesome)
(saved " " nil)
;; Diminished modes
("\\(?:ElDoc\\|Anzu\\|SP\\|Guide\\|PgLn\\|Undo-Tree\\|Ergo.*\\|,\\|Isearch\\|Ind\\|Fly\\)" nil nil)
)
@ -229,6 +270,41 @@ the icon."
:type '(repeat sexp)
:group 'mode-icons)
(defcustom mode-icons-modified-text-properties
'('mouse-face 'mode-line-highlight
'local-map
'(keymap
(mode-line keymap
(mouse-1 . mode-icons-save-buffer)
(mouse-3 . mode-line-toggle-modified)))
'help-echo 'mode-icons-modified-help-echo)
"List of text propeties to apply to read-only buffer indicator."
:type '(repeat sexp)
:group 'mode-icons)
(defun mode-icons-save-buffer (event)
"Save buffer from mode line.
Use EVENT to determine location."
(interactive "e")
(with-selected-window (posn-window (event-start event))
(save-buffer (current-buffer))
(force-mode-line-update)))
(defun mode-icons-modified-help-echo (window _object _point)
"Return help text specifying WINDOW's buffer modification status."
(format "Buffer is %smodified\nmouse-1: Save Buffer\nmouse-3: Toggle modification state"
(if (buffer-modified-p (window-buffer window)) "" "not ")))
(defcustom mode-icons-read-only-text-properties
'('mouse-face 'mode-line-highlight 'local-map
'(keymap
(mode-line keymap
(mouse-1 . mode-line-toggle-read-only)))
'help-echo 'mode-line-read-only-help-echo)
"List of text propeties to apply to read-only buffer indicator."
:type '(repeat sexp)
:group 'mode-icons)
(defvar mode-icons-powerline-p nil)
(defun mode-icons-need-update-p ()
"Determine if the mode-icons need an update."
@ -274,30 +350,31 @@ everywhere else."
MODE should be a string, the name of the mode to propertize.
ICON-SPEC should be a specification from `mode-icons'."
(let (tmp)
(cond
((and (stringp mode) (get-text-property 0 'mode-icons-p mode))
mode)
((not (nth 1 icon-spec))
"")
((and (stringp (nth 1 icon-spec)) (not (nth 2 icon-spec)))
(propertize (format "%s" mode) 'display (mode-icons-get-icon-display (nth 1 icon-spec) (nth 2 icon-spec))
'mode-icons-p t))
((mode-icons-supported-font-p (nth 1 icon-spec) (nth 2 icon-spec))
;; (propertize mode 'display (nth 1 icon-spec) 'mode-icons-p t)
;; Use `compose-region' because it allows clicable text.
(with-temp-buffer
(if (stringp mode)
(insert mode)
(insert (or (and (integerp (nth 1 icon-spec))
(make-string 1 (nth 1 icon-spec)))
(nth 1 icon-spec))))
(compose-region (point-min) (point-max) (or (and (integerp (nth 1 icon-spec))
(make-string 1 (nth 1 icon-spec)))
(nth 1 icon-spec)))
(put-text-property (point-min) (point-max) 'mode-icons-p t)
(buffer-string)))
(t (propertize (format "%s" mode) 'display (mode-icons-get-icon-display (nth 1 icon-spec) (nth 2 icon-spec)) 'mode-icons-p t)))))
(mode-icons-save-buffer-state ;; Otherwise may cause issues with trasient mark mode
(let (tmp)
(cond
((and (stringp mode) (get-text-property 0 'mode-icons-p mode))
mode)
((not (nth 1 icon-spec))
"")
((and (stringp (nth 1 icon-spec)) (not (nth 2 icon-spec)))
(propertize (nth 1 icon-spec) 'display (nth 1 icon-spec)
'mode-icons-p t))
((mode-icons-supported-font-p (nth 1 icon-spec) (nth 2 icon-spec))
;; (propertize mode 'display (nth 1 icon-spec) 'mode-icons-p t)
;; Use `compose-region' because it allows clicable text.
(with-temp-buffer
(if (stringp mode)
(insert mode)
(insert (or (and (integerp (nth 1 icon-spec))
(make-string 1 (nth 1 icon-spec)))
(nth 1 icon-spec))))
(compose-region (point-min) (point-max) (or (and (integerp (nth 1 icon-spec))
(make-string 1 (nth 1 icon-spec)))
(nth 1 icon-spec)))
(put-text-property (point-min) (point-max) 'mode-icons-p t)
(buffer-string)))
(t (propertize (format "%s" mode) 'display (mode-icons-get-icon-display (nth 1 icon-spec) (nth 2 icon-spec)) 'mode-icons-p t))))))
(defun mode-icons-get-icon-spec (mode)
"Get icon spec for MODE based on regular expression."
@ -427,6 +504,22 @@ ICON-SPEC should be a specification from `mode-icons'."
ro))))
,@mode-icons-read-only-text-properties)))
(defun mode-icons--modified-status ()
"Get modified status icon."
(eval `(propertize
,(let ((mod (format-mode-line "%1+"))
icon-spec)
(cond
((string= "*" mod)
(if (setq icon-spec (mode-icons-get-icon-spec 'save))
(mode-icons-propertize-mode 'save icon-spec)
mod))
(t
(if (setq icon-spec (mode-icons-get-icon-spec 'saved))
(mode-icons-propertize-mode 'saved icon-spec)
mod))))
,@mode-icons-modified-text-properties)))
;; Based on rich-minority by Artur Malabarba
(defvar mode-icons--backup-construct nil)
(defvar mode-icons--mode-line-construct
@ -450,6 +543,12 @@ ICON-SPEC should be a specification from `mode-icons'."
"Construct used to replace %1* in `mode-line-modified'.")
(defvar mode-icons--modified-backup-construct nil)
(defvar mode-icons--modified-construct
'(:eval (mode-icons--modified-status))
"Construct used to replace %1+ in `mode-line-modified'.")
(defun mode-icons-fix (&optional enable)
"Fix mode-icons."
(if enable
@ -472,6 +571,10 @@ ICON-SPEC should be a specification from `mode-icons'."
(place-ro (cl-member-if
(lambda(x)
(and (stringp x) (string-match-p "%[0-9]*[*]" x)))
mode-line-modified))
(place-mod (cl-member-if
(lambda(x)
(and (stringp x) (string-match-p "%[0-9]*[+]" x)))
mode-line-modified)))
(when place
(setq mode-icons--backup-construct (car place))
@ -484,11 +587,15 @@ ICON-SPEC should be a specification from `mode-icons'."
(setcar place-narrow mode-icons--narrow-construct))
(when place-ro
(setq mode-icons--read-only-backup-construct (car place-ro))
(setcar place-ro mode-icons--read-only-construct)))
(setcar place-ro mode-icons--read-only-construct))
(when place-mod
(setq mode-icons--modified-backup-construct (car place-mod))
(setcar place-mod mode-icons--modified-construct)))
(let ((place (member mode-icons--mode-line-construct mode-line-modes))
(place-major (member mode-icons--major-backup-construct mode-line-modes))
(place-narrow (member mode-icons--narrow-backup-construct mode-line-modes))
(place-ro (member mode-icons--read-only-backup-construct mode-line-modified)))
(place-ro (member mode-icons--read-only-backup-construct mode-line-modified))
(place-mod (member mode-icons--modified-backup-construct mode-line-modified)))
(when place
(setcar place mode-icons--backup-construct))
(when place-major
@ -496,7 +603,9 @@ ICON-SPEC should be a specification from `mode-icons'."
(when place-narrow
(setcar place-narrow mode-icons--narrow-backup-construct))
(when place-ro
(setcar place-ro mode-icons--narrow-backup-construct)))))
(setcar place-ro mode-icons--read-only-backup-construct))
(when place-mod
(setcar place-mod mode-icons--modified-backup-construct)))))
;;;###autoload
(define-minor-mode mode-icons-mode