168 lines
6.1 KiB
EmacsLisp
168 lines
6.1 KiB
EmacsLisp
;;; cider-selector.el --- Buffer selection command inspired by SLIME's selector -*- lexical-binding: t -*-
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;; Copyright © 2012-2013 Tim King, Phil Hagelberg, Bozhidar Batsov
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;; Copyright © 2013-2016 Bozhidar Batsov, Artur Malabarba and CIDER contributors
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;;
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;; Author: Tim King <kingtim@gmail.com>
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;; Phil Hagelberg <technomancy@gmail.com>
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;; Bozhidar Batsov <bozhidar@batsov.com>
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;; Artur Malabarba <bruce.connor.am@gmail.com>
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;; Hugo Duncan <hugo@hugoduncan.org>
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;; Steve Purcell <steve@sanityinc.com>
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;; This program is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;; This file is not part of GNU Emacs.
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;;; Commentary:
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;; Buffer selection command inspired by SLIME's selector.
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;;; Code:
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(require 'cider-client)
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(require 'cider-interaction)
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(require 'cider-scratch)
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(defconst cider-selector-help-buffer "*CIDER Selector Help*"
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"The name of the selector's help buffer.")
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(defvar cider-selector-methods nil
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"List of buffer-selection methods for the `cider-selector' command.
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Each element is a list (KEY DESCRIPTION FUNCTION).
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DESCRIPTION is a one-line description of what the key selects.")
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(defvar cider-selector-other-window nil
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"If non-nil use `switch-to-buffer-other-window'.")
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(defun cider--recently-visited-buffer (mode)
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"Return the most recently visited buffer, deriving its `major-mode' from MODE.
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Only considers buffers that are not already visible."
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(cl-loop for buffer in (buffer-list)
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when (and (with-current-buffer buffer
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(derived-mode-p mode))
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;; names starting with space are considered hidden by Emacs
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(not (string-match-p "^ " (buffer-name buffer)))
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(null (get-buffer-window buffer 'visible)))
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return buffer
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finally (error "Can't find unshown buffer in %S" mode)))
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;;;###autoload
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(defun cider-selector (&optional other-window)
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"Select a new buffer by type, indicated by a single character.
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The user is prompted for a single character indicating the method by
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which to choose a new buffer. The `?' character describes then
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available methods. OTHER-WINDOW provides an optional target.
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See `def-cider-selector-method' for defining new methods."
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(interactive)
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(message "Select [%s]: "
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(apply #'string (mapcar #'car cider-selector-methods)))
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(let* ((cider-selector-other-window other-window)
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(ch (save-window-excursion
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(select-window (minibuffer-window))
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(read-char)))
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(method (cl-find ch cider-selector-methods :key #'car)))
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(cond (method
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(funcall (cl-caddr method)))
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(t
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(message "No method for character: ?\\%c" ch)
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(ding)
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(sleep-for 1)
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(discard-input)
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(cider-selector)))))
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(defmacro def-cider-selector-method (key description &rest body)
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"Define a new `cider-select' buffer selection method.
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KEY is the key the user will enter to choose this method.
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DESCRIPTION is a one-line sentence describing how the method
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selects a buffer.
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BODY is a series of forms which are evaluated when the selector
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is chosen. The returned buffer is selected with
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`switch-to-buffer'."
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(let ((method `(lambda ()
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(let ((buffer (progn ,@body)))
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(cond ((not (get-buffer buffer))
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(message "No such buffer: %S" buffer)
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(ding))
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((get-buffer-window buffer)
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(select-window (get-buffer-window buffer)))
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(cider-selector-other-window
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(switch-to-buffer-other-window buffer))
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(t
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(switch-to-buffer buffer)))))))
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`(setq cider-selector-methods
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(cl-sort (cons (list ,key ,description ,method)
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(cl-remove ,key cider-selector-methods :key #'car))
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#'< :key #'car))))
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(def-cider-selector-method ?? "Selector help buffer."
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(ignore-errors (kill-buffer cider-selector-help-buffer))
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(with-current-buffer (get-buffer-create cider-selector-help-buffer)
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(insert "CIDER Selector Methods:\n\n")
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(cl-loop for (key line nil) in cider-selector-methods
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do (insert (format "%c:\t%s\n" key line)))
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(goto-char (point-min))
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(help-mode)
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(display-buffer (current-buffer) t))
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(cider-selector)
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(current-buffer))
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(cl-pushnew (list ?4 "Select in other window" (lambda () (cider-selector t)))
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cider-selector-methods :key #'car)
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(def-cider-selector-method ?c
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"Most recently visited clojure-mode buffer."
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(cider--recently-visited-buffer 'clojure-mode))
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(def-cider-selector-method ?e
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"Most recently visited emacs-lisp-mode buffer."
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(cider--recently-visited-buffer 'emacs-lisp-mode))
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(def-cider-selector-method ?q "Abort."
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(top-level))
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(def-cider-selector-method ?r
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"Current REPL buffer."
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(cider-current-repl-buffer))
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(def-cider-selector-method ?n
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"Connections browser buffer."
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(cider-connection-browser)
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cider--connection-browser-buffer-name)
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(def-cider-selector-method ?m
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"Current connection's *nrepl-messages* buffer."
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(cider-current-messages-buffer))
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(def-cider-selector-method ?x
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"*cider-error* buffer."
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cider-error-buffer)
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(def-cider-selector-method ?d
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"*cider-doc* buffer."
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cider-doc-buffer)
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(declare-function cider-find-or-create-scratch-buffer "cider-scratch")
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(def-cider-selector-method ?s
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"*cider-scratch* buffer."
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(cider-find-or-create-scratch-buffer))
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(provide 'cider-selector)
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;;; cider-selector.el ends here
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