;;; list-mode.el --- Major mode for buffers containing lists of items
;; Copyright (C) 1992-4, 1997 Free Software Foundation, Inc.
-;; Copyright (C) 1996 Ben Wing.
+;; Copyright (C) 1996, 2000 Ben Wing.
;; Maintainer: XEmacs Development Team
;; Keywords: extensions, dumped
(dolist (key '(kp-left left (control ?b)))
(define-key map key 'previous-list-mode-item))))
+;; #### We make list-mode-hook, as well as completion-setup-hook and
+;; minibuffer-setup-hook, permanent-local so that it's possible to create
+;; buffers in these modes and then set up some buffer-specific
+;; customizations without resorting to awful kludges. (The problem here
+;; is that when you switch a buffer into a mode, reset-buffer is usually
+;; called, which destroys all buffer-local settings that you carefully
+;; tried to set up when you created the buffer. Therefore, the only way
+;; to set these variables is to use the setup hooks -- but if they are
+;; not declared permanent local, then any local hook functions that you
+;; put on them (which is exactly what you want to do) also get removed,
+;; so you would have to resort to putting a global hook function on the
+;; setup hook, and then making sure it gets removed later. I actually
+;; added some support for doing this with one-shot hooks, but this is
+;; clearly not the correct way to do things, and it fails in some cases,
+;; particularly when the buffer gets put into the mode more than once,
+;; which typically happens with completion buffers, for example.) In
+;; fact, all setup hooks should be made permanent local, but I didn't
+;; feel like making a global change like this quite yet. The proper way
+;; to do it would be to declare new def-style forms, such as defhook and
+;; define-local-setup-hook, which are used to initialize hooks in place
+;; of the current generic defvars. --ben
+
+(put 'list-mode-hook 'permanent-local t)
+(defvar list-mode-hook nil
+ "Normal hook run when entering List mode.")
+
(defun list-mode ()
"Major mode for buffer containing lists of items."
(interactive)
(use-local-map list-mode-map)
(setq mode-name "List")
(setq major-mode 'list-mode)
- (make-local-hook 'post-command-hook)
- (add-hook 'post-command-hook 'set-list-mode-extent nil t)
- (make-local-hook 'pre-command-hook)
- (add-hook 'pre-command-hook 'list-mode-extent-pre-hook nil t)
- (make-local-variable 'next-line-add-newlines)
- (setq next-line-add-newlines nil)
+ (add-local-hook 'post-command-hook 'set-list-mode-extent)
+ (add-local-hook 'pre-command-hook 'list-mode-extent-pre-hook)
+ (set (make-local-variable 'next-line-add-newlines) nil)
(setq list-mode-extent nil)
- (set-specifier text-cursor-visible-p nil (current-buffer))
+;; It is visually disconcerting to have the text cursor disappear within list
+;; buffers, especially when moving from window to window, so leave it
+;; visible. -- Bob Weiner, 06/20/1999
+; (set-specifier text-cursor-visible-p nil (current-buffer))
(setq buffer-read-only t)
(goto-char (point-min))
(run-hooks 'list-mode-hook))
If the variable in not t or nil, the string is taken as a regexp to match for end
of highlight")
+;; see comment at list-mode-hook.
+(put 'completion-setup-hook 'permanent-local t)
(defvar completion-setup-hook nil
- "Normal hook run at the end of setting up the text of a completion buffer.")
+ "Normal hook run at the end of setting up the text of a completion buffer.
+When run, the completion buffer is the current buffer.")
; Unnecessary FSFmacs crock. We frob the extents directly in
; display-completion-list, so no "heuristics" like this are necessary.
:window-width
If non-nil, width to use in displaying the list, instead of the
actual window's width.
+ :window-height
+ If non-nil, use no more than this many lines, and extend line width as
+ necessary.
:help-string (default is the value of `completion-default-help-string')
Form to evaluate to get a string to insert at the beginning of
the completion list buffer. This is evaluated when that buffer
:reference-buffer
(:help-string completion-default-help-string)
(:completion-string "Possible completions are:")
- :window-width)
+ :window-width
+ :window-height)
()
(let ((old-buffer (current-buffer))
(bufferp (bufferp standard-output)))
(let ((win-width
(or cl-window-width
(if bufferp
- ;; This needs fixing for the case of windows
- ;; that aren't the same width's the frame.
- ;; Sadly, the window it will appear in is not known
- ;; until after the text has been made.
-
;; We have to use last-nonminibuf-frame here
;; and not selected-frame because if a
;; minibuffer-only frame is being used it will
;; be the selected-frame at the point this is
;; run. We keep the selected-frame call around
;; just in case.
- (frame-width (or (last-nonminibuf-frame)
- (selected-frame)))
+ (window-width (get-lru-window (last-nonminibuf-frame)))
80))))
(let ((count 0)
- (max-width 0))
+ (max-width 0)
+ old-max-width)
;; Find longest completion
(let ((tail completions))
(while tail
tail (cdr tail)))))
(setq max-width (+ 2 max-width)) ; at least two chars between cols
+ (setq old-max-width max-width)
(let ((rows (let ((cols (min (/ win-width max-width) count)))
(if (<= cols 1)
count
(if (/= (% count cols) 0) ; want ceiling...
(1+ (/ count cols))
(/ count cols)))))))
- (if (stringp cl-completion-string)
- (princ (gettext cl-completion-string)))
+ (when
+ (and cl-window-height
+ (> rows cl-window-height))
+ (setq max-width old-max-width)
+ (setq rows cl-window-height))
+ (when (and (stringp cl-completion-string)
+ (> (length cl-completion-string) 0))
+ (princ (gettext cl-completion-string))
+ (terpri))
(let ((tail completions)
(r 0)
(regexp-string
"[ \t]"
completion-highlight-first-word-only)))
(while (< r rows)
- (terpri)
+ (and (> r 0) (terpri))
(let ((indent 0)
(column 0)
(tail2 tail))
;; (put-text-property beg (point) 'list-mode-item t)
;; (goto-char end)))))
))
- (run-hooks 'completion-setup-hook)))
+ (save-excursion
+ (set-buffer standard-output)
+ (run-hooks 'completion-setup-hook))))
(defvar completion-display-completion-list-function 'display-completion-list
"Function to set up the list of completions in the completion buffer.
(define-derived-mode completion-list-mode list-mode
"Completion List"
"Major mode for buffers showing lists of possible completions.
-Type \\<completion-list-mode-map>\\[choose-completion] in the completion list\
- to select the completion near point.
-Use \\<completion-list-mode-map>\\[mouse-choose-completion] to select one\
- with the mouse."
+\\{completion-list-mode-map}"
(make-local-variable 'completion-base-size)
(setq completion-base-size nil))
(let ((map completion-list-mode-map))
+ (define-key map 'button2up 'mouse-choose-completion)
+ (define-key map 'button2 'undefined)
+ (define-key map "\C-m" 'choose-completion)
(define-key map "\e\e\e" 'delete-completion-window)
(define-key map "\C-g" 'minibuffer-keyboard-quit)
- (define-key map "q" 'abort-recursive-edit)
- (define-key map " " (lambda () (interactive)
- (select-window (minibuffer-window))))
- (define-key map "\t" (lambda () (interactive)
- (select-window (minibuffer-window)))))
+ (define-key map "q" 'completion-list-mode-quit)
+ (define-key map " " 'completion-switch-to-minibuffer)
+ ;; [Tab] used to switch to the minibuffer but since [space] does that and
+ ;; since most applications in the world use [Tab] to select the next item
+ ;; in a list, do that in the *Completions* buffer too. -- Bob Weiner,
+ ;; BeOpen.com, 06/23/1999.
+ (define-key map "\t" 'next-list-mode-item))
(defvar completion-reference-buffer nil
"Record the buffer that was current when the completion list was requested.
If this is nil, it means to compare text to determine which part
of the tail end of the buffer's text is involved in completion.")
+;; These names are referenced in the doc string for `completion-list-mode'.
+(defalias 'choose-completion 'list-mode-item-keyboard-selected)
+(defalias 'mouse-choose-completion 'list-mode-item-mouse-selected)
+
(defun delete-completion-window ()
"Delete the completion list window.
Go to the window from which completion was requested."
(if (get-buffer-window buf)
(select-window (get-buffer-window buf)))))
+(defun completion-switch-to-minibuffer ()
+ "Move from a completions buffer to the active minibuffer window."
+ (interactive)
+ (select-window (minibuffer-window)))
+
+(defun completion-list-mode-quit ()
+ "Abort any recursive edit and bury the completions buffer."
+ (interactive)
+ (condition-case ()
+ (abort-recursive-edit)
+ (error nil))
+ ;; If there was no recursive edit to abort, simply bury the completions
+ ;; list buffer.
+ (if (eq major-mode 'completion-list-mode) (bury-buffer)))
+
(defun completion-do-in-minibuffer ()
(interactive "_")
(save-excursion
(and (button-event-p event)
;; Give temporary modes such as isearch a chance to turn off.
(run-hooks 'mouse-leave-buffer-hook))
- (or buffer (setq buffer (symbol-value-in-buffer
- 'completion-reference-buffer
- (or (and (button-event-p event)
- (event-buffer event))
- (current-buffer)))))
- (save-selected-window
- (and (button-event-p event)
- (select-window (event-window event)))
- (if (and (one-window-p t 'selected-frame)
- (window-dedicated-p (selected-window)))
- ;; This is a special buffer's frame
- (iconify-frame (selected-frame))
- (or (window-dedicated-p (selected-window))
- (bury-buffer))))
- (choose-completion-string (extent-string extent)
- buffer
- completion-base-size))
+ (let ((list-buffer (or (and (button-event-p event)
+ (event-buffer event))
+ (current-buffer))))
+ (or buffer (setq buffer (symbol-value-in-buffer
+ 'completion-reference-buffer
+ list-buffer)))
+ (save-selected-window
+ (and (button-event-p event)
+ (select-window (event-window event)))
+ (if (and (one-window-p t 'selected-frame)
+ (window-dedicated-p (selected-window)))
+ ;; This is a special buffer's frame
+ (iconify-frame (selected-frame))
+ (or (window-dedicated-p (selected-window))
+ (bury-buffer))))
+ (choose-completion-string (extent-string extent)
+ buffer
+ (symbol-value-in-buffer 'completion-base-size
+ list-buffer))))
;; Delete the longest partial match for STRING
;; that can be found before POINT.
projects / chise / xemacs-chise.git.1 / blobdiff