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spacemacs/layers/+distributions/spacemacs-bootstrap/funcs.el
2018-01-04 02:00:25 -05:00

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;;; funcs.el --- Spacemacs Bootstrap Layer functions File
;;
;; Copyright (c) 2012-2018 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(defun spacemacs/state-color-face (state)
"Return the symbol of the face for the given STATE."
(intern (format "spacemacs-%s-face" (symbol-name state))))
(defun spacemacs/state-color (state)
"Return the color string associated to STATE."
(face-background (spacemacs/state-color-face state)))
(defun spacemacs/current-state-color ()
"Return the color string associated to the current state."
(face-background (spacemacs/state-color-face evil-state)))
(defun spacemacs/state-face (state)
"Return the face associated to the STATE."
(spacemacs/state-color-face state))
(defun spacemacs/current-state-face ()
"Return the face associated to the current state."
(let ((state (if (eq evil-state 'operator)
evil-previous-state
evil-state)))
(spacemacs/state-color-face state)))
(defun spacemacs/add-evil-cursor (state color shape)
"Define a cursor and face for a new evil state.
An appropriate entry is added to `spacemacs-evil-cursors', as well.
For evil states that do not need an evil cursor use
`spacemacs/define-evil-state-face' instead."
(add-to-list 'spacemacs-evil-cursors (list state color shape))
(spacemacs/define-evil-state-face state color)
(set (intern (format "evil-%s-state-cursor" state))
(list (when dotspacemacs-colorize-cursor-according-to-state color)
shape)))
(defun spacemacs/define-evil-state-face (state color)
"Define a face for an evil state.
For evil states that also need an entry to `spacemacs-evil-cursors' use
`spacemacs/add-evil-cursor' instead."
;; this function and `spacemacs/add-evil-cursor' need to be separate because
;; some states must explicitly *not* have their own evil spacemacs cursor
;; for example treemacs: it needs no cursor since it solely uses hl-line-mode
;; and having an evil cursor defined anyway leads to the cursor sometimes
;; visibly flashing in treemacs buffers
(eval `(defface ,(intern (format "spacemacs-%s-face" state))
`((t (:background ,color
:foreground ,(face-background 'mode-line)
:inherit 'mode-line)))
(format "%s state face." state)
:group 'spacemacs)))
(defun spacemacs/set-state-faces ()
(cl-loop for (state color cursor) in spacemacs-evil-cursors
do
(set-face-attribute (intern (format "spacemacs-%s-face" state))
nil
:foreground (face-background 'mode-line))))
(defun evil-insert-state-cursor-hide ()
(setq evil-insert-state-cursor '((hbar . 0))))
(defun spacemacs/set-evil-search-module (style)
"Set the evil search module depending on STYLE."
(cond
((or (eq 'vim style)
(and (eq 'hybrid style)
(bound-and-true-p hybrid-mode-use-evil-search-module)))
;; if Evil is loaded already, just setting `evil-search-module' isn't
;; enough, we need to call `evil-select-search-module' as well (this is done
;; automatically when `evil-search-module' is changed via customize)
(if (featurep 'evil-search)
(evil-select-search-module 'evil-search-module 'evil-search)
(setq-default evil-search-module 'evil-search)))
(t
(if (featurep 'evil-search)
(evil-select-search-module 'evil-search-module 'isearch)
(setq-default evil-search-module 'isearch)))))
(defun spacemacs/evil-smart-doc-lookup ()
"Run documentation lookup command specific to the major mode.
Use command bound to `SPC m h h` if defined, otherwise fall back
to `evil-lookup'"
(interactive)
(let ((binding (key-binding (kbd (concat dotspacemacs-leader-key " mhh")))))
(if (commandp binding)
(call-interactively binding)
(evil-lookup))))
(defun spacemacs//set-evil-shift-width ()
"Set the value of `evil-shift-width' based on the indentation settings of the
current major mode."
(let ((shift-width
(catch 'break
(dolist (test spacemacs--indent-variable-alist)
(let ((mode (car test))
(val (cdr test)))
(when (or (and (symbolp mode) (derived-mode-p mode))
(and (listp mode) (apply 'derived-mode-p mode))
(eq 't mode))
(when (not (listp val))
(setq val (list val)))
(dolist (v val)
(cond
((integerp v) (throw 'break v))
((and (symbolp v) (boundp v))
(throw 'break (symbol-value v))))))))
(throw 'break (default-value 'evil-shift-width)))))
(when (and (integerp shift-width)
(< 0 shift-width))
(setq-local evil-shift-width shift-width))))
(defmacro spacemacs|define-text-object (key name start end)
"Define a text object and a surround pair.
START and END are strings (not regular expressions) that define
the boundaries of the text object."
`(progn
(spacemacs|define-text-object-regexp ,key ,name
,(regexp-quote start)
,(regexp-quote end))
(with-eval-after-load 'evil-surround
(push (cons (string-to-char ,key)
(if ,end
(cons ,start ,end)
,start))
evil-surround-pairs-alist))))
(defmacro spacemacs|define-text-object-regexp (key name start-regexp end-regexp)
"Define a text object.
START-REGEXP and END-REGEXP are the boundaries of the text object."
(let ((inner-name (make-symbol (concat "evil-inner-" name)))
(outer-name (make-symbol (concat "evil-outer-" name))))
`(progn
(evil-define-text-object ,inner-name (count &optional beg end type)
(evil-select-paren ,start-regexp ,end-regexp beg end type count nil))
(evil-define-text-object ,outer-name (count &optional beg end type)
(evil-select-paren ,start-regexp ,end-regexp beg end type count t))
(define-key evil-inner-text-objects-map ,key (quote ,inner-name))
(define-key evil-outer-text-objects-map ,key (quote ,outer-name)))))
;; need to delay this macro since it relies on evil key maps to be defined
(with-eval-after-load 'evil
(defmacro evil-map (state key seq)
"Map for a given STATE a KEY to a sequence SEQ of keys.
Can handle recursive definition only if KEY is the first key of SEQ.
Example: (evil-map visual \"<\" \"<gv\")"
(let ((map (intern (format "evil-%S-state-map" state))))
`(define-key ,map ,key
(lambda ()
(interactive)
,(if (string-equal key (substring seq 0 1))
`(progn
(call-interactively ',(lookup-key evil-normal-state-map key))
(execute-kbd-macro ,(substring seq 1)))
(execute-kbd-macro ,seq)))))))
(defun spacemacs/diminish-hook (_)
"Display diminished lighter in vanilla Emacs mode-line."
(let ((unicodep (dotspacemacs|symbol-value
dotspacemacs-mode-line-unicode-symbols)))
(cl-loop for (mode uni nouni) in spacemacs--diminished-minor-modes
do (diminish mode (if unicodep uni nouni)))))
(defun spacemacs//hydra-key-doc-function (key key-width doc doc-width)
"Custom hint documentation format for keys."
(format (format "[%%%ds] %%%ds" key-width (- -1 doc-width))
key doc))