223 lines
7.5 KiB
EmacsLisp
223 lines
7.5 KiB
EmacsLisp
;;; funcs.el --- Auto-completion functions File
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;;
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;; Copyright (c) 2012-2016 Sylvain Benner & Contributors
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;;
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;; Author: Sylvain Benner <sylvain.benner@gmail.com>
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;; URL: https://github.com/syl20bnr/spacemacs
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;;
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;; This file is not part of GNU Emacs.
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;;
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;;; License: GPLv3
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(spacemacs|add-toggle auto-completion
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:status
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(if (eq 'company auto-completion-front-end)
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(bound-and-true-p company-mode)
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(bound-and-true-p auto-complete-mode))
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:on
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(progn
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(if (eq 'company auto-completion-front-end)
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(company-mode)
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(auto-complete-mode))
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(message "Enabled auto-completion (using %S)."
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auto-completion-front-end))
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:off
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(progn
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(if (eq 'company auto-completion-front-end)
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(company-mode -1)
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(auto-complete-mode -1))
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(message "Disabled auto-completion."))
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:documentation "Enable auto-completion."
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:evil-leader "ta")
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;; auto-completion key bindings functions
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(defun spacemacs//auto-completion-set-RET-key-behavior (package)
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"Bind RET key appropriately for the given PACKAGE and value of
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`auto-completion-return-key-behavior'."
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(cond
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((eq 'company package)
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(let ((map company-active-map))
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(cond
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((eq 'complete auto-completion-return-key-behavior)
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(define-key map [return] 'company-complete-selection)
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(define-key map (kbd "RET") 'company-complete-selection))
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(t
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(define-key map [return] 'nil)
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(define-key map (kbd "RET") 'nil)))))
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(t (message "Not yet implemented for package %S" package))))
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(defun spacemacs//auto-completion-set-TAB-key-behavior (package)
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"Bind TAB key appropriately for the given PACKAGE and value of
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`auto-completion-tab-key-behavior'."
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(cond
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((eq 'company package)
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(let ((map company-active-map))
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(cond
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((eq 'complete auto-completion-tab-key-behavior)
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(define-key map (kbd "TAB") 'company-complete-selection)
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(define-key map (kbd "<tab>") 'company-complete-selection))
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((eq 'cycle auto-completion-tab-key-behavior)
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(define-key map (kbd "TAB") 'company-complete-common-or-cycle)
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(define-key map (kbd "<tab>") 'company-complete-common-or-cycle)
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(define-key map (kbd "<S-tab>")
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'spacemacs//company-complete-common-or-cycle-backward)
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(define-key map (kbd "<backtab>")
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'spacemacs//company-complete-common-or-cycle-backward))
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(t
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(define-key map (kbd "TAB") nil)
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(define-key map (kbd "<tab>") nil)))))
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(t (message "Not yet implemented for package %S" package))))
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(defun spacemacs//auto-completion-setup-key-sequence (package)
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"Setup the key sequence to complete current selection."
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(when auto-completion-complete-with-key-sequence
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(let ((first-key (elt auto-completion-complete-with-key-sequence 0)))
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(cond ((eq 'company package)
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(define-key company-active-map (kbd (char-to-string first-key))
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'spacemacs//auto-completion-key-sequence-start))
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(t (message "Not yet implemented for package %S" package))))))
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;; key sequence to complete selection
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(defvar spacemacs--auto-completion-time nil)
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(defvar spacemacs--auto-completion-complete-last-candidate nil)
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(defvar spacemacs--auto-completion-shadowed-insert-binding nil)
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(defvar spacemacs--auto-completion-shadowed-emacs-binding nil)
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(defun spacemacs//auto-completion-key-sequence-start ()
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"Initiate auto-completion sequence."
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(interactive)
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(self-insert-command 1)
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(setq spacemacs--auto-completion-complete-last-candidate
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(cond
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((bound-and-true-p company-mode)
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(nth company-selection company-candidates))))
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;; enable second key of the sequence
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(let ((second-key (kbd (char-to-string
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(elt auto-completion-complete-with-key-sequence 1)))))
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(setq spacemacs--auto-completion-shadowed-insert-binding
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(lookup-key evil-insert-state-map second-key))
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(setq spacemacs--auto-completion-shadowed-emacs-binding
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(lookup-key evil-emacs-state-map second-key))
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(define-key
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evil-insert-state-map
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second-key
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'spacemacs//auto-completion-key-sequence-end)
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(define-key
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evil-emacs-state-map
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second-key
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'spacemacs//auto-completion-key-sequence-end))
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;; set a timer to restore the old bindings
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(run-at-time auto-completion-complete-with-key-sequence-delay
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nil
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'spacemacs//auto-completion-key-sequence-restore)
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(when spacemacs--auto-completion-complete-last-candidate
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(setq spacemacs--auto-completion-time (current-time))))
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(defun spacemacs//auto-completion-key-sequence-end ()
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"Check if the auto-completion key sequence has been entered."
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(interactive)
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(if (or (null spacemacs--auto-completion-time)
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(< auto-completion-complete-with-key-sequence-delay
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(float-time (time-since spacemacs--auto-completion-time))))
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(self-insert-command 1)
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(cond
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((bound-and-true-p company-mode)
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(unless company-candidates
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;; if the auto-completion menu is still active then we don't need to
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;; delete the last inserted first key of the sequence
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(delete-char -1))
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(let ((company-idle-delay))
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(company-auto-begin)
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(company-finish spacemacs--auto-completion-complete-last-candidate)))))
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(spacemacs//auto-completion-key-sequence-restore)
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(setq spacemacs--auto-completion-time nil))
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(defun spacemacs//auto-completion-key-sequence-restore ()
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"Restore the shadowed key bindings used to auto-complete."
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(let ((second-key (kbd (char-to-string
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(elt auto-completion-complete-with-key-sequence 1)))))
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(define-key
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evil-insert-state-map
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second-key
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spacemacs--auto-completion-shadowed-insert-binding)
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(define-key
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evil-emacs-state-map
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second-key
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spacemacs--auto-completion-shadowed-emacs-binding)))
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;; Editing style
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(defun spacemacs//company-active-navigation (style)
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"Set navigation for the given editing STYLE."
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(cond
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((or (eq 'vim style)
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(and (eq 'hybrid style)
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hybrid-mode-enable-hjkl-bindings))
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(let ((map company-active-map))
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(define-key map (kbd "C-j") 'company-select-next)
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(define-key map (kbd "C-k") 'company-select-previous)
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(define-key map (kbd "C-l") 'company-complete-selection)))
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(t
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(let ((map company-active-map))
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(define-key map (kbd "C-n") 'company-select-next)
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(define-key map (kbd "C-p") 'company-select-previous)
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(define-key map (kbd "C-f") 'company-complete-selection)))))
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;; Transformers
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(defun spacemacs//company-transformer-cancel (candidates)
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"Cancel completion if prefix is in the list
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`company-mode-completion-cancel-keywords'"
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(unless (member company-prefix company-mode-completion-cancel-keywords)
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candidates))
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(defvar-local company-fci-mode-on-p nil)
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(defun company-turn-off-fci (&rest ignore)
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(when (boundp 'fci-mode)
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(setq company-fci-mode-on-p fci-mode)
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(when fci-mode (fci-mode -1))))
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(defun company-maybe-turn-on-fci (&rest ignore)
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(when company-fci-mode-on-p (fci-mode 1)))
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;; helm-yas
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(defun spacemacs/helm-yas ()
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"Properly lazy load helm-c-yasnipper."
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(interactive)
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(spacemacs/load-yasnippet)
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(require 'helm-c-yasnippet)
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(call-interactively 'helm-yas-complete))
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;; Yasnippet
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(defun spacemacs/load-yasnippet ()
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(unless yas-global-mode (yas-global-mode 1))
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(yas-minor-mode 1))
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(defun spacemacs/force-yasnippet-off ()
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(yas-minor-mode -1)
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(setq yas-dont-activate t))
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;; Auto-Yasnippet
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(defun spacemacs/auto-yasnippet-expand ()
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"Call `yas-expand' and switch to `insert state'"
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(interactive)
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(call-interactively 'aya-expand)
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(unless holy-mode (evil-insert-state)))
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