583 lines
20 KiB
EmacsLisp
583 lines
20 KiB
EmacsLisp
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;;; powerline.el --- Rewrite of Powerline
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;; Copyright (C) 2012-2013 Donald Ephraim Curtis
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;; Copyright (C) 2013 Jason Milkins
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;; Copyright (C) 2012 Nicolas Rougier
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;; Author: Donald Ephraim Curtis <dcurtis@milkbox.net>
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;; URL: http://github.com/milkypostman/powerline/
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;; Version: 2.4
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;; Keywords: mode-line
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;; Package-Requires: ((cl-lib "0.2"))
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;;; Commentary:
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;;
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;; Powerline is a library for customizing the mode-line that is based on the Vim
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;; Powerline. A collection of predefined themes comes with the package.
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;;
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;;; Code:
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(eval-and-compile (require 'powerline-themes))
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(eval-and-compile (require 'powerline-separators))
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(require 'cl-lib)
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(defface powerline-active1 '((t (:background "grey22" :inherit mode-line)))
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"Powerline face 1."
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:group 'powerline)
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(defface powerline-active2 '((t (:background "grey40" :inherit mode-line)))
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"Powerline face 2."
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:group 'powerline)
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(defface powerline-inactive1
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'((t (:background "grey11" :inherit mode-line-inactive)))
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"Powerline face 1."
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:group 'powerline)
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(defface powerline-inactive2
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'((t (:background "grey20" :inherit mode-line-inactive)))
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"Powerline face 2."
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:group 'powerline)
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(defface mode-line-buffer-id-inactive
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'((t (:inherit mode-line-buffer-id)))
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"Powerline mode-line face"
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:group 'powerline)
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(defcustom powerline-default-separator 'arrow
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"The separator to use for the default theme.
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Valid Values: alternate, arrow, arrow-fade, bar, box, brace,
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butt, chamfer, contour, curve, rounded, roundstub, wave, zigzag,
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utf-8."
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:group 'powerline
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:type '(choice (const alternate)
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(const arrow)
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(const arrow-fade)
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(const bar)
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(const box)
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(const brace)
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(const butt)
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(const chamfer)
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(const contour)
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(const curve)
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(const rounded)
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(const roundstub)
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(const slant)
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(const wave)
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(const zigzag)
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(const utf-8)
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(const nil)))
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(defcustom powerline-utf-8-separator-left #xe0b0
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"The unicode character number for the left facing separator"
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:group 'powerline
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:type '(choice integer (const nil)))
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(defcustom powerline-utf-8-separator-right #xe0b2
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"The unicode character number for the right facing separator"
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:group 'powerline
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:type '(choice integer (const nil)))
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(defcustom powerline-default-separator-dir '(left . right)
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"The separator direction to use for the default theme.
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CONS of the form (DIR . DIR) denoting the lean of the
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separators for the left and right side of the powerline.
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DIR must be one of: left, right"
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:group 'powerline
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:type '(cons (choice :tag "Left Hand Side" (const left) (const right))
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(choice :tag "Right Hand Side" (const left) (const right))))
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(defcustom powerline-height nil
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"Override the mode-line height."
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:group 'powerline
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:type '(choice integer (const nil)))
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(defcustom powerline-text-scale-factor nil
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"Scale of mode-line font size to default text size.
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Smaller mode-line fonts will be a float value less that 1.
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Larger mode-line fonts require a float value greater than 1.
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This is needed to make sure that text is properly aligned."
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:group 'powerline
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:type '(choice float integer (const nil)))
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(defcustom powerline-buffer-size-suffix t
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"Display the buffer size suffix."
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:group 'powerline
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:type 'boolean)
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(defcustom powerline-gui-use-vcs-glyph nil
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"Display a unicode character to represent a version control system. Not always supported in GUI."
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:group 'powerline
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:type 'boolean)
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(defun pl/create-or-get-cache ()
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"Return a frame-local hash table that acts as a memoization cache for powerline. Create one if the frame doesn't have one yet."
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(let ((table (frame-parameter nil 'powerline-cache)))
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(if (hash-table-p table) table (pl/reset-cache))))
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(defun pl/reset-cache ()
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"Reset and return the frame-local hash table used for a memoization cache."
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(let ((table (make-hash-table :test 'equal)))
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;; Store it as a frame-local variable
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(modify-frame-parameters nil `((powerline-cache . ,table)))
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table))
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(defun powerline-current-separator ()
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"Get the current default separator. Always returns utf-8 in non-gui mode."
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(if window-system
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powerline-default-separator
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'utf-8))
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;;
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;; the frame-local powerline cache causes problems if included in a saved desktop,
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;; so delete it before the desktop is saved.
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;;
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;; see https://github.com/milkypostman/powerline/issues/58
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;;
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;; It is better to put the following code into your init file for Emacs 24.4 or later.
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;; (require 'frameset)
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;; (push '(powerline-cache . :never) frameset-filter-alist)
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;;
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(defun powerline-delete-cache (&optional frame)
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"Set the FRAME cache to nil."
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(set-frame-parameter frame 'powerline-cache nil))
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(defun powerline-desktop-save-delete-cache ()
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"Set all caches to nil unless `frameset-filter-alist' has :never for powerline-cache."
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(unless (and (boundp 'frameset-filter-alist)
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(eq (cdr (assq 'powerline-cache frameset-filter-alist))
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:never))
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(dolist (fr (frame-list)) (powerline-delete-cache fr))))
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(add-hook 'desktop-save-hook 'powerline-desktop-save-delete-cache)
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;; from memoize.el @ http://nullprogram.com/blog/2010/07/26/
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(defun pl/memoize (func)
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"Memoize FUNC.
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If argument is a symbol then install the memoized function over
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the original function. Use frame-local memoization."
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(cl-typecase func
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(symbol (fset func (pl/memoize-wrap-frame-local (symbol-function func))) func)
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(function (pl/memoize-wrap-frame-local func))))
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(defun pl/memoize-wrap-frame-local (func)
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"Return the memoized version of FUNC.
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The memoization cache is frame-local."
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(let ((funcid (cl-gensym)))
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`(lambda (&rest args)
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,(concat (documentation func) (format "\n(memoized function %s)" funcid))
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(let* ((cache (pl/create-or-get-cache))
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(key (cons ',funcid args))
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(val (gethash key cache)))
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(if val
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val
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(puthash key (apply ,func args) cache))))))
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(defun pl/separator-height ()
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"Get default height for rendering separators."
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(or powerline-height (frame-char-height)))
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(defun powerline-reset ()
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"Reset memoized functions."
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(interactive)
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(pl/memoize (pl/alternate left))
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(pl/memoize (pl/alternate right))
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(pl/memoize (pl/arrow left))
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(pl/memoize (pl/arrow right))
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(pl/memoize (pl/arrow-fade left))
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(pl/memoize (pl/arrow-fade right))
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(pl/memoize (pl/bar left))
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(pl/memoize (pl/bar right))
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(pl/memoize (pl/box left))
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(pl/memoize (pl/box right))
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(pl/memoize (pl/brace left))
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(pl/memoize (pl/brace right))
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(pl/memoize (pl/butt left))
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(pl/memoize (pl/butt right))
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(pl/memoize (pl/chamfer left))
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(pl/memoize (pl/chamfer right))
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(pl/memoize (pl/contour left))
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(pl/memoize (pl/contour right))
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(pl/memoize (pl/curve left))
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(pl/memoize (pl/curve right))
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(pl/memoize (pl/rounded left))
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(pl/memoize (pl/rounded right))
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(pl/memoize (pl/roundstub left))
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(pl/memoize (pl/roundstub right))
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(pl/memoize (pl/slant left))
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(pl/memoize (pl/slant right))
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(pl/memoize (pl/wave left))
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(pl/memoize (pl/wave right))
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(pl/memoize (pl/zigzag left))
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(pl/memoize (pl/zigzag right))
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(pl/memoize (pl/nil left))
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(pl/memoize (pl/nil right))
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(pl/utf-8 left)
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(pl/utf-8 right)
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(pl/reset-cache))
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(powerline-reset)
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(defun pl/make-xpm (name color1 color2 data)
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"Return an XPM image with NAME using COLOR1 for enabled and COLOR2 for disabled bits specified in DATA."
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(when window-system
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(create-image
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(concat
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(format "/* XPM */
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static char * %s[] = {
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\"%i %i 2 1\",
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\". c %s\",
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\" c %s\",
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"
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(downcase (replace-regexp-in-string " " "_" name))
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(length (car data))
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(length data)
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(or (pl/hex-color color1) "None")
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(or (pl/hex-color color2) "None"))
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(let ((len (length data))
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(idx 0))
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(apply 'concat
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(mapcar #'(lambda (dl)
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(setq idx (+ idx 1))
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(concat
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"\""
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(concat
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(mapcar #'(lambda (d)
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(if (eq d 0)
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(string-to-char " ")
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(string-to-char ".")))
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dl))
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(if (eq idx len)
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"\"};"
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"\",\n")))
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data))))
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'xpm t :ascent 'center)))
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(defun pl/percent-xpm
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(height pmax pmin winend winstart width color1 color2)
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"Generate percentage xpm of HEIGHT for PMAX to PMIN given WINEND and WINSTART with WIDTH and COLOR1 and COLOR2."
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(let* ((height- (1- height))
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(fillstart (round (* height- (/ (float winstart) (float pmax)))))
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(fillend (round (* height- (/ (float winend) (float pmax)))))
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(data nil)
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(i 0))
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(while (< i height)
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(setq data (cons
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(if (and (<= fillstart i)
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(<= i fillend))
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(append (make-list width 1))
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(append (make-list width 0)))
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data))
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(setq i (+ i 1)))
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(pl/make-xpm "percent" color1 color2 (reverse data))))
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(pl/memoize 'pl/percent-xpm)
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;;;###autoload
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(defun powerline-hud (face1 face2 &optional width)
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"Return an XPM of relative buffer location using FACE1 and FACE2 of optional WIDTH."
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(unless width (setq width 2))
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(let ((color1 (if face1 (face-background face1) "None"))
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(color2 (if face2 (face-background face2) "None"))
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(height (or powerline-height (frame-char-height)))
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pmax
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pmin
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(ws (window-start))
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(we (window-end)))
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(save-restriction
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(widen)
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(setq pmax (point-max))
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(setq pmin (point-min)))
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(pl/percent-xpm height pmax pmin we ws
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(* (frame-char-width) width) color1 color2)))
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;;;###autoload
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(defun powerline-mouse (click-group click-type string)
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"Return mouse handler for CLICK-GROUP given CLICK-TYPE and STRING."
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(cond ((eq click-group 'minor)
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(cond ((eq click-type 'menu)
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`(lambda (event)
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(interactive "@e")
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(minor-mode-menu-from-indicator ,string)))
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((eq click-type 'help)
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`(lambda (event)
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(interactive "@e")
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(describe-minor-mode-from-indicator ,string)))
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(t
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`(lambda (event)
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(interactive "@e")
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nil))))
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(t
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`(lambda (event)
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(interactive "@e")
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nil))))
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;;;###autoload
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(defun powerline-concat (&rest strings)
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"Concatonate STRINGS and pad sides by spaces."
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(concat
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" "
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(mapconcat 'identity (delq nil strings) " ")
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" "))
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;;;###autoload
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(defmacro defpowerline (name body)
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"Create function NAME by wrapping BODY with powerline padding an propetization."
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`(defun ,name
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(&optional face pad)
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(powerline-raw ,body face pad)))
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(defun pl/property-substrings (str prop)
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"Return a list of substrings of STR when PROP change."
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(let ((beg 0) (end 0)
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(len (length str))
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(out))
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(while (< end (length str))
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(setq end (or (next-single-property-change beg prop str) len))
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(setq out (append out (list (substring str beg (setq beg end))))))
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out))
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(defun pl/assure-list (item)
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"Assure that ITEM is a list."
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(if (listp item)
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item
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(list item)))
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(defun pl/add-text-property (str prop val)
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(mapconcat
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(lambda (mm)
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(let ((cur (pl/assure-list (get-text-property 0 'face mm))))
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(propertize mm 'face (append cur (list val)))))
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(pl/property-substrings str prop)
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""))
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;;;###autoload
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(defun powerline-raw (str &optional face pad)
|
||
|
|
"Render STR as mode-line data using FACE and optionally PAD import on left (l) or right (r)."
|
||
|
|
(when str
|
||
|
|
(let* ((rendered-str (format-mode-line str))
|
||
|
|
(padded-str (concat
|
||
|
|
(when (and (> (length rendered-str) 0) (eq pad 'l)) " ")
|
||
|
|
(if (listp str) rendered-str str)
|
||
|
|
(when (and (> (length rendered-str) 0) (eq pad 'r)) " "))))
|
||
|
|
|
||
|
|
(if face
|
||
|
|
(pl/add-text-property padded-str 'face face)
|
||
|
|
padded-str))))
|
||
|
|
|
||
|
|
;;;###autoload
|
||
|
|
(defun powerline-fill (face reserve)
|
||
|
|
"Return empty space using FACE and leaving RESERVE space on the right."
|
||
|
|
(unless reserve
|
||
|
|
(setq reserve 20))
|
||
|
|
(when powerline-text-scale-factor
|
||
|
|
(setq reserve (* powerline-text-scale-factor reserve)))
|
||
|
|
(when (and window-system (eq 'right (get-scroll-bar-mode)))
|
||
|
|
(setq reserve (- reserve 3)))
|
||
|
|
(propertize " "
|
||
|
|
'display `((space :align-to (- (+ right right-fringe right-margin) ,reserve)))
|
||
|
|
'face face))
|
||
|
|
|
||
|
|
(defun powerline-fill-center (face reserve)
|
||
|
|
"Return empty space using FACE to the center of remaining space leaving RESERVE space on the right."
|
||
|
|
(unless reserve
|
||
|
|
(setq reserve 20))
|
||
|
|
(when powerline-text-scale-factor
|
||
|
|
(setq reserve (* powerline-text-scale-factor reserve)))
|
||
|
|
(propertize " "
|
||
|
|
'display `((space :align-to (- (+ center (.5 . right-margin)) ,reserve
|
||
|
|
(.5 . left-margin))))
|
||
|
|
'face face))
|
||
|
|
|
||
|
|
;;;###autoload (autoload 'powerline-major-mode "powerline")
|
||
|
|
(defpowerline powerline-major-mode
|
||
|
|
(propertize (format-mode-line mode-name)
|
||
|
|
'mouse-face 'mode-line-highlight
|
||
|
|
'help-echo "Major mode\n\ mouse-1: Display major mode menu\n\ mouse-2: Show help for major mode\n\ mouse-3: Toggle minor modes"
|
||
|
|
'local-map (let ((map (make-sparse-keymap)))
|
||
|
|
(define-key map [mode-line down-mouse-1]
|
||
|
|
`(menu-item ,(purecopy "Menu Bar") ignore
|
||
|
|
:filter (lambda (_) (mouse-menu-major-mode-map))))
|
||
|
|
(define-key map [mode-line mouse-2] 'describe-mode)
|
||
|
|
(define-key map [mode-line down-mouse-3] mode-line-mode-menu)
|
||
|
|
map)))
|
||
|
|
|
||
|
|
;;;###autoload (autoload 'powerline-minor-modes "powerline")
|
||
|
|
(defpowerline powerline-minor-modes
|
||
|
|
(mapconcat (lambda (mm)
|
||
|
|
(propertize mm
|
||
|
|
'mouse-face 'mode-line-highlight
|
||
|
|
'help-echo "Minor mode\n mouse-1: Display minor mode menu\n mouse-2: Show help for minor mode\n mouse-3: Toggle minor modes"
|
||
|
|
'local-map (let ((map (make-sparse-keymap)))
|
||
|
|
(define-key map
|
||
|
|
[mode-line down-mouse-1]
|
||
|
|
(powerline-mouse 'minor 'menu mm))
|
||
|
|
(define-key map
|
||
|
|
[mode-line mouse-2]
|
||
|
|
(powerline-mouse 'minor 'help mm))
|
||
|
|
(define-key map
|
||
|
|
[mode-line down-mouse-3]
|
||
|
|
(powerline-mouse 'minor 'menu mm))
|
||
|
|
(define-key map
|
||
|
|
[header-line down-mouse-3]
|
||
|
|
(powerline-mouse 'minor 'menu mm))
|
||
|
|
map)))
|
||
|
|
(split-string (format-mode-line minor-mode-alist))
|
||
|
|
(propertize " " 'face face)))
|
||
|
|
|
||
|
|
;;;###autoload (autoload 'powerline-narrow "powerline")
|
||
|
|
(defpowerline powerline-narrow
|
||
|
|
(let (real-point-min real-point-max)
|
||
|
|
(save-excursion
|
||
|
|
(save-restriction
|
||
|
|
(widen)
|
||
|
|
(setq real-point-min (point-min) real-point-max (point-max))))
|
||
|
|
(when (or (/= real-point-min (point-min))
|
||
|
|
(/= real-point-max (point-max)))
|
||
|
|
(propertize "Narrow"
|
||
|
|
'mouse-face 'mode-line-highlight
|
||
|
|
'help-echo "mouse-1: Remove narrowing from the current buffer"
|
||
|
|
'local-map (make-mode-line-mouse-map
|
||
|
|
'mouse-1 'mode-line-widen)))))
|
||
|
|
|
||
|
|
;;;###autoload (autoload 'powerline-vc "powerline")
|
||
|
|
(defpowerline powerline-vc
|
||
|
|
(when (and (buffer-file-name (current-buffer)) vc-mode)
|
||
|
|
(if (and window-system (not powerline-gui-use-vcs-glyph))
|
||
|
|
(format-mode-line '(vc-mode vc-mode))
|
||
|
|
(format " %s%s"
|
||
|
|
(char-to-string #xe0a0)
|
||
|
|
(format-mode-line '(vc-mode vc-mode))))))
|
||
|
|
|
||
|
|
;;;###autoload (autoload 'powerline-buffer-size "powerline")
|
||
|
|
(defpowerline powerline-buffer-size
|
||
|
|
(propertize
|
||
|
|
(if powerline-buffer-size-suffix
|
||
|
|
"%I"
|
||
|
|
"%i")
|
||
|
|
'mouse-face 'mode-line-highlight
|
||
|
|
'local-map (make-mode-line-mouse-map
|
||
|
|
'mouse-1 (lambda () (interactive)
|
||
|
|
(setq powerline-buffer-size-suffix
|
||
|
|
(not powerline-buffer-size-suffix))
|
||
|
|
(force-mode-line-update)))))
|
||
|
|
|
||
|
|
;;;###autoload (autoload 'powerline-buffer-id "powerline")
|
||
|
|
(defun powerline-buffer-id (&optional face pad)
|
||
|
|
(powerline-raw
|
||
|
|
(format-mode-line
|
||
|
|
(concat " " (propertize
|
||
|
|
"%b"
|
||
|
|
'face face
|
||
|
|
'mouse-face 'mode-line-highlight
|
||
|
|
'help-echo "Buffer name\n\ mouse-1: Previous buffer\n\ mouse-3: Next buffer"
|
||
|
|
'local-map (let ((map (make-sparse-keymap)))
|
||
|
|
(define-key map [mode-line mouse-1] 'mode-line-previous-buffer)
|
||
|
|
(define-key map [mode-line mouse-3] 'mode-line-next-buffer)
|
||
|
|
map))))
|
||
|
|
face pad))
|
||
|
|
|
||
|
|
;;;###autoload (autoload 'powerline-process "powerline")
|
||
|
|
(defpowerline powerline-process
|
||
|
|
(cond
|
||
|
|
((symbolp mode-line-process) (symbol-value mode-line-process))
|
||
|
|
((listp mode-line-process) (format-mode-line mode-line-process))
|
||
|
|
(t mode-line-process)))
|
||
|
|
|
||
|
|
(defvar pl/default-mode-line mode-line-format)
|
||
|
|
|
||
|
|
(defvar pl/minibuffer-selected-window-list '())
|
||
|
|
|
||
|
|
(defun pl/minibuffer-selected-window ()
|
||
|
|
"Return the selected window when entereing the minibuffer."
|
||
|
|
(when pl/minibuffer-selected-window-list
|
||
|
|
(car pl/minibuffer-selected-window-list)))
|
||
|
|
|
||
|
|
(defun pl/minibuffer-setup ()
|
||
|
|
"Save the `minibuffer-selected-window' to `pl/minibuffer-selected-window'."
|
||
|
|
(push (minibuffer-selected-window) pl/minibuffer-selected-window-list))
|
||
|
|
|
||
|
|
(add-hook 'minibuffer-setup-hook 'pl/minibuffer-setup)
|
||
|
|
|
||
|
|
(defun pl/minibuffer-exit ()
|
||
|
|
"Set `pl/minibuffer-selected-window' to nil."
|
||
|
|
(pop pl/minibuffer-selected-window-list))
|
||
|
|
|
||
|
|
(add-hook 'minibuffer-exit-hook 'pl/minibuffer-exit)
|
||
|
|
|
||
|
|
(defvar powerline-selected-window (frame-selected-window))
|
||
|
|
(defun powerline-set-selected-window ()
|
||
|
|
"sets the variable `powerline-selected-window` appropriately"
|
||
|
|
(when (not (minibuffer-window-active-p (frame-selected-window)))
|
||
|
|
(setq powerline-selected-window (frame-selected-window))))
|
||
|
|
|
||
|
|
(defun powerline-unset-selected-window ()
|
||
|
|
"Unsets the variable `powerline-selected-window` and updates the modeline"
|
||
|
|
(setq powerline-selected-window nil)
|
||
|
|
(force-mode-line-update))
|
||
|
|
|
||
|
|
(add-hook 'window-configuration-change-hook 'powerline-set-selected-window)
|
||
|
|
|
||
|
|
;; focus-in-hook was introduced in emacs v24.4.
|
||
|
|
;; Gets evaluated in the last frame's environment.
|
||
|
|
(add-hook 'focus-in-hook 'powerline-set-selected-window)
|
||
|
|
|
||
|
|
;; focus-out-hook was introduced in emacs v24.4.
|
||
|
|
(add-hook 'focus-out-hook 'powerline-unset-selected-window)
|
||
|
|
|
||
|
|
;; Executes after the window manager requests that the user's events
|
||
|
|
;; be directed to a different frame.
|
||
|
|
(defadvice handle-switch-frame
|
||
|
|
(after powerline-set-selected-window-after-switch-frame activate)
|
||
|
|
(powerline-set-selected-window))
|
||
|
|
|
||
|
|
(defadvice select-window (after powerline-select-window activate)
|
||
|
|
"makes powerline aware of window changes"
|
||
|
|
(powerline-set-selected-window))
|
||
|
|
|
||
|
|
;;;###autoload (autoload 'powerline-selected-window-active "powerline")
|
||
|
|
(defun powerline-selected-window-active ()
|
||
|
|
"Return whether the current window is active."
|
||
|
|
(eq powerline-selected-window (selected-window)))
|
||
|
|
|
||
|
|
(defun powerline-revert ()
|
||
|
|
"Revert to the default Emacs mode-line."
|
||
|
|
(interactive)
|
||
|
|
(setq-default mode-line-format pl/default-mode-line))
|
||
|
|
|
||
|
|
(defun pl/render (item)
|
||
|
|
"Render a powerline ITEM."
|
||
|
|
(cond
|
||
|
|
((and (listp item) (eq 'image (car item)))
|
||
|
|
(propertize " " 'display item
|
||
|
|
'face (plist-get (cdr item) :face)))
|
||
|
|
(item item)))
|
||
|
|
|
||
|
|
(defun powerline-render (values)
|
||
|
|
"Render a list of powerline VALUES."
|
||
|
|
(mapconcat 'pl/render values ""))
|
||
|
|
|
||
|
|
(defun powerline-width (values)
|
||
|
|
"Get the length of VALUES."
|
||
|
|
(if values
|
||
|
|
(let ((val (car values)))
|
||
|
|
(+ (cond
|
||
|
|
((stringp val) (string-width (format-mode-line val)))
|
||
|
|
((and (listp val) (eq 'image (car val)))
|
||
|
|
(car (image-size val)))
|
||
|
|
(t 0))
|
||
|
|
(powerline-width (cdr values))))
|
||
|
|
0))
|
||
|
|
|
||
|
|
|
||
|
|
(provide 'powerline)
|
||
|
|
|
||
|
|
;;; powerline.el ends here
|