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hui-mouse.el
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hui-mouse.el
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;;; hui-mouse.el --- Use key or mouse key for many functions, e.g. GNU Hyperbole menus -*- lexical-binding: t; -*-
;;
;; Author: Bob Weiner
;;
;; Orig-Date: 04-Feb-89
;; Last-Mod: 3-Dec-22 at 00:21:51 by Bob Weiner
;;
;; Copyright (C) 1991-2022 Free Software Foundation, Inc.
;; See the "HY-COPY" file for license information.
;;
;; This file is part of GNU Hyperbole.
;;; Commentary:
;;
;; This code is machine independent. It works best with a pointing device but
;; may also be used from a keyboard. When used with a pointing device it
;; requires an Emacs command that sets point to the location of the pointing
;; device's cursor.
;;
;; If you want to use your shift-middle mouse button to select Hyperbole menu
;; items and Hyperbole buttons, follow these instructions.
;;
;; If you plan to use a mouse only with the X window system or macOS
;; and you want to use the shift-middle and shift-right buttons, you
;; need not do any mouse configuration. Your Emacs executable must
;; have been built so as to include the mouse support files for your
;; window system, however. These are in the Emacs "src" directory:
;; for X - "x*.c", for macOS - "ns*.c".
;;
;; To use a different mouse key or a different window system, modify the
;; mouse key bindings in "hmouse-sh.el".
;;
;; Using the Action Mouse Key to browse through and delete files from
;; Dired listings is exceptionally nice, just as it is when reading mail.
;;; Code:
;;; ************************************************************************
;;; Other required Elisp libraries
;;; ************************************************************************
(require 'hload-path)
(require 'hsys-org)
(require 'hbut)
(unless (fboundp 'smart-info)
(require 'hmouse-info))
(unless (fboundp 'smart-c-at-tag-p)
(require 'hmouse-tag))
(require 'imenu)
(eval-when-compile (require 'tar-mode))
;;; ************************************************************************
;;; Public declarations
;;; ************************************************************************
(defvar magit-root-section)
;;; ************************************************************************
;;; Public variables
;;; ************************************************************************
(defvar hmouse-set-point-command nil
"*Command that sets point to the mouse cursor position.")
(defun action-key-error ()
"If in Org mode and Hyperbole shares {M-RET}, run org-meta-return.
In other context signal an error."
(if (and (funcall hsys-org-mode-function)
(hsys-org-meta-return-shared-p))
(hact 'hsys-org-meta-return)
(hypb:error "(Hyperbole Action Key): No action defined for this context; try another location")))
(defun assist-key-error ()
"If in Org mode and Hyperbole shares {M-RET}, run org-meta-return.
In other context, signal an error."
(if (and (funcall hsys-org-mode-function)
(hsys-org-meta-return-shared-p))
(hact 'hsys-org-meta-return)
(hypb:error "(Hyperbole Assist Key): No action defined for this context; try another location")))
(defcustom action-key-default-function #'action-key-error
"*Function run by the Action Key in an unspecified context.
Set it to `hyperbole' if you want it to display the Hyperbole minibuffer menu."
:type 'function
:group 'hyperbole-keys)
(defcustom assist-key-default-function #'assist-key-error
"*Function run by the Assist Key in an unspecified context.
Set it to `hkey-summarize' if you want it to display a summary of
Smart Key behavior."
:type 'function
:group 'hyperbole-keys)
(defcustom action-key-modeline-buffer-id-function #'dired-jump
"*Function to call for Action Key clicks on the buffer id portion of a modeline.
Its default value is `dired-jump'; set it to `smart-treemacs-modeline'
to use the Treemacs file manager package instead."
:type 'function
:group 'hyperbole-keys)
(defcustom action-key-eol-function #'smart-scroll-up
"*Function run by the Action Key at the end of a line.
Its default value is `smart-scroll-up'. To disable it, set it to
#\\='ignore."
:type 'function
:group 'hyperbole-keys)
(defcustom assist-key-eol-function #'smart-scroll-down
"*Function run by the Assist Key at the end of a line.
Its default value is `smart-scroll-down'. To disable it, set it to
#\\='ignore."
:type 'function
:group 'hyperbole-keys)
;;; ************************************************************************
;;; Public declarations
;;; ************************************************************************
(declare-function todotxt-archive "ext:todotxt")
(declare-function todotxt-bury "ext:todotxt")
(declare-function todotxt-complete-toggle "ext:todotxt")
(declare-function todotxt-edit-item "ext:todotxt")
(declare-function magit-current-section "magit-selection")
(declare-function magit-diff-visit-file "etx:magit-diff")
(declare-function magit-diff-visit-file--internal "etx:magit-diff")
(declare-function magit-file-at-point "etx:magit-git")
(declare-function magit-section-cycle-diffs "etx:magit-diff")
(declare-function magit-section-cycle-global "etx:magit-selection")
(declare-function magit-section-hide "etx:magit-selection")
(declare-function magit-section-show "etx:magit-selection")
(declare-function -flatten "ext:dash")
(declare-function imenu--make-index-alist "imenu")
(declare-function image-dired-thumbnail-display-external "image-dired")
(declare-function image-dired-display-thumbnail-original-image "image-dired")
(declare-function image-dired-mouse-select-thumbnail "image-dired")
(declare-function helm-action-window "ext:helm-lib")
(declare-function helm-buffer-get "ext:helm-lib")
;; (declare-function helm-get-current-action "ext:helm-?")
(declare-function helm-get-selection "ext:helm")
(declare-function helm-mark-current-line "ext:helm")
(declare-function helm-next-line "ext:helm")
(declare-function helm-pos-candidate-separator-p "ext:helm")
(declare-function helm-pos-header-line-p "ext:helm")
(declare-function helm-resume "ext:helm")
(declare-function helm-window "ext:helm-lib")
(declare-function with-helm-buffer "ext:helm-lib")
(defvar helm-action-buffer)
(defvar helm-alive-p)
(defvar helm-buffer)
(declare-function ibuffer-mark-for-delete "ibuffer")
(declare-function ibuffer-unmark-forward "ibuffer")
(declare-function ibuffer-unmark-all "ibuffer")
(declare-function ibuffer-do-view "ibuffer")
(declare-function ibuffer-mark-forward "ibuffer")
(declare-function ibuffer-do-kill-on-deletion-marks "ibuffer")
(declare-function ibuffer-get-marked-buffers "ibuffer")
(declare-function ibuffer-current-buffer "ibuffer")
(declare-function br-buffer-menu-select "ext:br")
(declare-function gnus-topic-read-group "gnus-topic")
(declare-function company-show-doc-buffer "ext:company")
;; (declare-function company-quick-help-manual-begin "ext:company?")
(declare-function company-show-location "ext:company")
(declare-function company-select-mouse "ext:company")
;;; ************************************************************************
;;; Hyperbole context-sensitive keys dispatch table
;;; ************************************************************************
(defvar hkey-value nil
"Communicates a value between a Smart Key predicate and its actions.")
(defvar hkey-alist
'(
;; Company completion mode
((and (boundp 'company-active-map)
(memq company-active-map (current-minor-mode-maps))) .
((smart-company-to-definition) . (smart-company-help)))
;;
;; Handle any Org mode-specific contexts but give priority to Hyperbole
;; buttons prior to cycling Org headlines
((and (not (hyperb:stack-frame '(smart-org)))
(let ((hrule:action #'actype:identity))
(smart-org))) .
((smart-org) . (smart-org)))
;;
;; Ivy minibuffer completion mode
((and (boundp 'ivy-mode) ivy-mode (minibuffer-window-active-p (selected-window))) .
((ivy-done) . (ivy-dispatching-done)))
;;
;; Treemacs hierarchical file manager
((eq major-mode 'treemacs-mode) .
((smart-treemacs) . (smart-treemacs)))
;;
;; dired-sidebar-mode
((eq major-mode 'dired-sidebar-mode) .
((smart-dired-sidebar) . (smart-dired-sidebar)))
;;
;; Handle Emacs push buttons in buffers
((and (fboundp 'button-at) (button-at (point))) .
((push-button nil (mouse-event-p last-command-event))
. (smart-push-button-help nil (mouse-event-p last-command-event))))
;;
;; If click in the minibuffer and reading an argument,
;; accept argument or give completion help.
((and (> (minibuffer-depth) 0)
(eq (selected-window) (minibuffer-window))
(not (eq hargs:reading-type 'hmenu))
(not (smart-helm-alive-p))) .
((funcall (key-binding (kbd "RET"))) . (smart-completion-help)))
;;
;; If reading a Hyperbole menu item or a Hyperbole completion-based
;; argument, allow selection of an item at point.
((and (> (minibuffer-depth) 0) (setq hkey-value (hargs:at-p))) .
((hargs:select-p hkey-value) .
(hargs:select-p hkey-value 'assist)))
;;
;; If reading a Hyperbole menu item and nothing is selected, just return.
;; Or if in a helm session with point in the minibuffer, quit the
;; session and activate the selected item.
((and (> (minibuffer-depth) 0)
(eq (selected-window) (minibuffer-window))
(or (eq hargs:reading-type 'hmenu)
(smart-helm-alive-p))) .
((funcall (key-binding (kbd "RET"))) . (funcall (key-binding (kbd "RET")))))
;;
;; The ID-edit package supports rapid killing, copying, yanking and
;; display management. It is available only as a part of InfoDock.
;; It is not included with Hyperbole.
((and (boundp 'id-edit-mode) id-edit-mode
(not buffer-read-only)
(not (smart-helm-alive-p))) .
((id-edit-yank) . (id-edit-yank)))
;;
;; If in an xref buffer on a listing of matching identifier lines, go to
;; the source line referenced by the current entry.
((and (fboundp 'xref--item-at-point) (xref--item-at-point)) .
((xref-goto-xref) . (xref-show-location-at-point)))
;;
;; If at the end of a line (eol), invoke the associated Smart Key handler EOL handler.
((if (eq major-mode 'kotl-mode)
(and (not (kotl-mode:eobp)) (kotl-mode:eolp t))
(smart-eolp)) .
((funcall action-key-eol-function) . (funcall assist-key-eol-function)))
;;
;; The Smart Menu system is an attractive in-buffer menu system
;; that works on any display system that supports Emacs. It
;; predates Emacs' menu systems; it is a part of InfoDock.
;; It is not included with Hyperbole but is compatible with the
;; Smart Keys.
;;
;; This selects or gives help for a menu item.
((eq major-mode 'smart-menu-mode) .
((smart-menu-select) . (smart-menu-help)))
;;
((derived-mode-p 'dired-mode) .
((smart-dired) . (smart-dired-assist)))
;;
((string-prefix-p "magit-" (symbol-name major-mode)) .
((smart-magit) . (smart-magit-assist)))
;;
;; If on a Hyperbole button, perform action or give help.
((hbut:at-p) .
((hui:hbut-act 'hbut:current) . (hui:hbut-help 'hbut:current)))
;;
;; This potentially displays a Smart Menu.
((and (fboundp 'smart-menu-choose-menu)
(setq hkey-value (and hkey-always-display-menu
(smart-menu-choose-menu)))
(not (and (get-buffer-window *smart-menu-buffer*)
(eq hkey-value *smart-menu-curr*)))) .
((smart-menu hkey-value) .
(smart-menu hkey-value)))
;;
;; View minor mode
((if (boundp 'view-minor-mode) view-minor-mode) .
((cond ((last-line-p)
(view-quit))
((pos-visible-in-window-p (point-max))
(goto-char (point-max)))
(t (scroll-up))) .
(scroll-down)))
;;
;; Direct access selection of helm-major-mode completions
((setq hkey-value (and (or (eq major-mode 'helm-major-mode)
(and (featurep 'helm) (equal helm-action-buffer (buffer-name))))
(or (eolp)
(smart-helm-at-header)
(smart-helm-line-has-action)))) .
((smart-helm) . (smart-helm-assist)))
;;
;; Support the OO-Browser when available. It is a separate Emacs
;; package not included with Hyperbole. Within an OO-Browser
;; OOBR-FTR buffer, an *Implementors* listing buffer, or an
;; Element signatures listing buffer of the OO-Browser, display
;; the associated element.
((or (string-equal (buffer-name) "*Implementors*")
(string-match "-Elements\\'" (buffer-name))
(and (boundp 'br-feature-tags-file)
(stringp br-feature-tags-file)
(equal br-feature-tags-file buffer-file-name))) .
((smart-element) . (hkey-help)))
;;
;; View major mode
((eq major-mode 'view-mode) .
((View-scroll-lines-forward) . (View-scroll-lines-backward)))
;;
;; Select or select-and-kill a markup pair (e.g. hmtl tags), list,
;; array/vector, set, function, comment or string that begins or
;; ends at point. For markup pairs, point must be at the first
;; character of the opening or closing tag.
((hui-select-at-delimited-thing-p) .
((hui-select-delimited-thing) . (progn (hui-select-delimited-thing)
(hmouse-kill-region))))
;;
;; If the prior test failed and point is at the start or end of an
;; sexpression, mark it for editing or kill it (assist key). This
;; only handles the special case where point is just after the
;; closing delimiter and not at an end-of-line, so this may be
;; removed someday.
((hui-select-at-delimited-sexp-p) .
((hui-select-mark-delimited-sexp) .
(progn (hui-select-mark-delimited-sexp) (hmouse-kill-region))))
;;
((eq major-mode 'occur-mode) .
((occur-mode-goto-occurrence) . (occur-mode-goto-occurrence)))
;;
((eq major-mode 'moccur-mode) .
((moccur-mode-goto-occurrence) . (moccur-mode-goto-occurrence)))
((eq major-mode 'amoccur-mode) .
((amoccur-mode-goto-occurrence) . (amoccur-mode-goto-occurrence)))
;;
((eq major-mode 'kotl-mode) .
((kotl-mode:action-key) . (kotl-mode:assist-key)))
;;
;; Rdb-mode supports direct selection and viewing of in-memory relational
;; databases. Rdb-mode is available as a part of InfoDock.
;; It is not included with Hyperbole.
((eq major-mode 'rdb-mode) . ((rdb:action-key) . (rdb:assist-key)))
;;
;; Restore window config and hide help buffer when click at buffer end.
((if (= (point) (point-max))
(string-match "^\\*Help\\|Help\\*$" (buffer-name))) .
((hkey-help-hide) . (hkey-help-hide)))
;;
;; Handle widgets in Custom-mode
((eq major-mode 'Custom-mode) .
((smart-custom) . (smart-custom-assist)))
;;
;; Emacs bookmarks menu (bookmark.el)
((eq major-mode 'bookmark-bmenu-mode) .
((bookmark-jump (bookmark-bmenu-bookmark) (hpath:display-buffer-function)) .
;; Below we want the Assist Key to show what the Action Key does.
(hkey-help)))
;;
;; Pages directory listing mode (page-ext.el)
((eq major-mode 'pages-directory-mode) .
((pages-directory-goto) . (pages-directory-goto)))
;;
;; Python files - ensure this comes before Imenu for more advanced
;; definition lookups
((and (or (and (derived-mode-p 'python-mode) buffer-file-name)
(and (featurep 'hsys-org) (hsys-org-mode-p)
(equal (hsys-org-get-value :language) "python"))
(let ((case-fold-search))
(string-match "\\`\\([ *]?Pydoc[: ]\\|\\*?Python\\)" (buffer-name))))
(setq hkey-value (smart-python-at-tag-p))) .
((smart-python hkey-value) . (smart-python hkey-value 'next-tag)))
;;
;; Imenu listing in GNU Emacs
((smart-imenu-item-at-p)
. ((smart-imenu-display-item-where (car hkey-value) (cdr hkey-value)) .
(imenu-choose-buffer-index)))
;;
((and (eq major-mode 'c-mode)
buffer-file-name (smart-c-at-tag-p)) .
((smart-c) . (smart-c nil 'next-tag)))
;;
((and (eq major-mode 'c++-mode) buffer-file-name
;; Don't use smart-c++-at-tag-p here since it will prevent #include
;; lines from matching.
(smart-c-at-tag-p)) .
((smart-c++) . (smart-c++ nil 'next-tag)))
;;
((and (eq major-mode 'asm-mode)
buffer-file-name (smart-asm-at-tag-p)) .
((smart-asm) . (smart-asm nil 'next-tag)))
;;
((or (and (smart-lisp-mode-p)
(or (smart-lisp-at-load-expression-p)
(smart-lisp-at-tag-p)))
;; Tightly limit Lisp matches in change-log-mode.
(smart-lisp-at-change-log-tag-p)) .
((smart-lisp) . (smart-lisp 'show-doc)))
;;
;;
((and (eq major-mode 'java-mode) buffer-file-name
(or (smart-java-at-tag-p)
;; Also handle Java @see cross-references.
(looking-at "@see[ \t]+")
(save-excursion
(and (re-search-backward "[@\n\r\f]" nil t)
(looking-at "@see[ \t]+"))))) .
((smart-java) . (smart-java nil 'next-tag)))
;;
((and (memq major-mode '(js2-mode js-mode js3-mode javascript-mode html-mode web-mode))
buffer-file-name
(smart-javascript-at-tag-p)) .
((smart-javascript) . (smart-javascript nil 'next-tag)))
;;
((and (eq major-mode 'objc-mode) buffer-file-name
(smart-objc-at-tag-p)) .
((smart-objc) . (smart-objc nil 'next-tag)))
;;
((and (memq major-mode '(fortran-mode f90-mode))
buffer-file-name (smart-fortran-at-tag-p)) .
((smart-fortran) . (smart-fortran nil 'next-tag)))
;;
((eq major-mode 'calendar-mode) .
((smart-calendar) . (smart-calendar-assist)))
;;
((eq major-mode 'unix-apropos-mode) .
((smart-apropos) . (smart-apropos-assist)))
;;
((eq major-mode 'outline-mode) .
((smart-outline) . (smart-outline-assist)))
;;
((eq major-mode 'Info-mode) .
((smart-info) . (smart-info-assist)))
;;
((if (boundp 'hmail:reader)
(or (eq major-mode hmail:reader)
(eq major-mode hmail:lister))) .
((smart-hmail) . (smart-hmail-assist)))
;;
((eq major-mode 'gnus-group-mode)
(smart-gnus-group) . (smart-gnus-group-assist))
;;
((eq major-mode 'gnus-summary-mode)
(smart-gnus-summary) . (smart-gnus-summary-assist))
;;
((eq major-mode 'gnus-article-mode)
(smart-gnus-article) . (smart-gnus-article-assist))
;;
((eq major-mode 'Buffer-menu-mode) .
((smart-buffer-menu) . (smart-buffer-menu-assist)))
;;
((eq major-mode 'ibuffer-mode) .
((smart-ibuffer-menu) . (smart-ibuffer-menu-assist)))
;;
((eq major-mode 'tar-mode) .
((smart-tar) . (smart-tar-assist)))
;;
;; Follow references in man pages.
((setq hkey-value (smart-man-entry-ref)) .
((smart-man-display hkey-value) . (smart-man-display hkey-value)))
;;
((eq major-mode 'w3-mode) .
((w3-follow-link) . (w3-goto-last-buffer)))
;;
((eq major-mode 'hynote-mode) .
((smart-hynote) . (smart-hynote-assist)))
;;
((eq major-mode 'hyrolo-mode) .
((smart-hyrolo) . (smart-hyrolo-assist)))
;;
((eq major-mode 'image-dired-thumbnail-mode) .
((smart-image-dired-thumbnail) . (smart-image-dired-thumbnail-assist)))
;;
;; Gomoku game
((eq major-mode 'gomoku-mode) .
((gomoku-human-plays) . (gomoku-human-takes-back)))
;;
;; Support the OO-Browser when available. It is a separate Emacs
;; package not included with Hyperbole. Hyperbole supplies a stub
;; `br-in-browser' test for use here.
((or (br-in-browser) (eq major-mode 'br-mode)) .
((smart-br-dispatch) . (smart-br-assist-dispatch)))
;;
;; Outline minor mode is on and usable.
((and (boundp 'outline-minor-mode) outline-minor-mode) .
((smart-outline) . (smart-outline-assist)))
;;
;; Todotxt
((eq major-mode 'todotxt-mode) .
((smart-todotxt) . (smart-todotxt-assist))))
"Alist of predicates and form-conses for the Action and Assist Keyboard Keys.
Each element is: (PREDICATE-FORM . (ACTION-KEY-FORM . ASSIST-KEY-FORM)).
When the Action or Assist Key is pressed, the first or second form,
respectively, associated with the first non-nil predicate is evaluated.
See also `hmouse-alist' for a superset of this list utilized by the
Action and Assist Mouse Keys.")
;;; ************************************************************************
;;; driver code
;;; ************************************************************************
(require 'hargs)
(defvar hmouse-alist hkey-alist
"Alist of predicates and form-conses for the Action and Assist Mouse Keys.
When the Action Mouse Key or Assist Mouse Key is pressed, the first or second
form, respectively, associated with the first non-nil predicate is
evaluated.
The `hkey-alist' variable is the subset of this alist used by the
smart keyboard keys.")
;; This must be required after hmouse-alist is defined in this file
;; since this will recursively require hmouse-drv which requires
;; hui-window when being compiled and that library requires that
;; hmouse-alist be defined.
(require 'hmouse-key)
;; This next library adds drag actions to `hmouse-alist'.
(require 'hui-window)
;;; ************************************************************************
;;; support code
;;; ************************************************************************
;; The `load' line below loads any local Smart Key function definitions.
;; The public distribution contains none. You may leave it commented out if
;; you prefer.
;; (load "smart-local" t)
;;; ************************************************************************
;;; Required Init functions
;;; ************************************************************************
(defun first-line-p ()
"Return true if point is on the first line of the buffer."
(save-excursion (beginning-of-line) (bobp)))
(defun last-line-p ()
"Return true if point is on the last line of the buffer."
(save-excursion (end-of-line) (smart-eobp)))
(defun smart-completion-help ()
"Offer completion help for current minibuffer argument, if any."
(if (where-is-internal 'minibuffer-completion-help (current-local-map))
(minibuffer-completion-help)))
(defun smart-symlink-expand (path)
"Return referent for possible symbolic link, PATH."
(if (not (fboundp 'symlink-referent))
path
(let ((start 0) (len (length path)) (ref) (part))
(while (and (< start len) (setq part (string-match "/[^/]*" path start)))
(setq part (concat ref
(substring path start (setq start (match-end 0))))
ref (symlink-referent part)))
ref)))
;;; ************************************************************************
;;; smart-buffer-menu functions
;;; ************************************************************************
(defun smart-buffer-menu-no-marks ()
"Display this line's buffer in this window.
Bury the buffer menu unless other buffers are marked. If buffer
menu items are marked, return nil, else t."
(let* ((this-buffer (Buffer-menu-buffer t))
(menu-buffer (current-buffer))
(others (delq this-buffer (Buffer-menu-marked-buffers t))))
(unless others
(switch-to-buffer this-buffer)
(unless (eq menu-buffer this-buffer)
(bury-buffer menu-buffer))
t)))
(defun smart-buffer-menu ()
"Use a single key or mouse key to manipulate `buffer-menu' entries.
Invoked via a key press when in `Buffer-menu-mode. It assumes that its
caller has already checked that the key was pressed in an appropriate buffer
and has moved the cursor there.
If key is pressed:
(1) on the first column of an entry, the selected buffer is marked for
display;
(2) on the second column of an entry, the selected buffer is marked to be
saved;
(3) anywhere else within an entry line, all saves and deletes are done, and
selected buffers are displayed, including the one just clicked on (if
within the OO-Browser user interface, only the selected buffer is
displayed);
(4) on or after the last line in the buffer, all saves and deletes are done."
(interactive)
(cond ((last-line-p) (Buffer-menu-execute))
((bolp) (Buffer-menu-mark))
((save-excursion
(goto-char (1- (point)))
(bolp))
(Buffer-menu-save))
((br-in-browser) (br-buffer-menu-select))
((smart-buffer-menu-no-marks))
(t (Buffer-menu-select))))
(defun smart-buffer-menu-assist ()
"Use a single assist-key or mouse assist-key to manipulate `buffer-menu' entries.
Invoked via an assist-key press when in `Buffer-menu-mode'. It assumes that its
caller has already checked that the assist-key was pressed in an appropriate
buffer and has moved the cursor there.
If assist-key is pressed:
(1) on the first or second column of an entry, the selected buffer is unmarked
for display and for saving or deletion;
(2) anywhere else within an entry line, the selected buffer is marked for
deletion;
(3) on or after the last line in the buffer, all display, save, and delete
marks on all entries are undone."
(interactive)
(cond ((last-line-p) (progn (list-buffers) (forward-line 3)))
((bolp) (Buffer-menu-unmark))
((save-excursion
(goto-char (1- (point)))
(bolp))
(Buffer-menu-unmark))
(t (Buffer-menu-delete))))
;;; ************************************************************************
;;; smart-ibuffer-menu functions
;;; ************************************************************************
(defun smart-ibuffer-menu-no-marks ()
"Display this line's buffer in this window.
Bury the buffer menu unless other buffers are marked. If buffer
menu items are marked, return nil, else t."
(let* ((this-buffer (ibuffer-current-buffer t))
(menu-buffer (current-buffer))
(others (delq this-buffer (ibuffer-get-marked-buffers))))
(unless others
(switch-to-buffer this-buffer)
(unless (eq menu-buffer this-buffer)
(bury-buffer menu-buffer))
t)))
(defun smart-ibuffer-menu ()
"Use a single key or mouse key to manipulate ibuffer entries.
Invoked via a key press when in ibuffer-mode. It assumes that
its caller has already checked that the key was pressed in an
appropriate buffer and has moved the cursor there.
If key is pressed:
(1) on the first or second column of an entry, the selected buffer is
marked for display;
(2) anywhere else within an entry line, all saves and deletes are done, and
selected buffers are displayed, including the one just clicked on (if
within the OO-Browser user interface, only the selected buffer is
displayed);
(3) on the first or last line in the buffer, all deletes are done."
(interactive)
(cond ((or (first-line-p) (last-line-p))
(ibuffer-do-kill-on-deletion-marks))
((or (bolp) (save-excursion
(goto-char (1- (point)))
(bolp)))
(ibuffer-mark-forward nil nil 1))
((br-in-browser) (br-buffer-menu-select))
((smart-ibuffer-menu-no-marks))
(t (ibuffer-do-view))))
(defun smart-ibuffer-menu-assist ()
"Use a single assist-key or mouse assist-key to manipulate `buffer-menu' entries.
Invoked via an assist-key press when in ibuffer-mode. It assumes that
its caller has already checked that the assist-key was pressed in an
appropriate buffer and has moved the cursor there.
If assist-key is pressed:
(1) on the first or second column of an entry, the selected buffer is unmarked
for display or deletion;
(2) anywhere else within an entry line, the selected buffer is marked for
deletion;
(3) on the first or last line in the buffer, all display, save, and delete
marks on all entries are undone."
(interactive)
(cond ((or (first-line-p) (last-line-p))
(if (fboundp 'ibuffer-unmark-all-marks)
(ibuffer-unmark-all-marks)
(ibuffer-unmark-all 0)))
((or (bolp) (save-excursion
(goto-char (1- (point)))
(bolp)))
(ibuffer-unmark-forward nil nil 1))
(t (ibuffer-mark-for-delete nil nil 1))))
;;; ************************************************************************
;;; smart-custom and widget functions
;;; ************************************************************************
(defun smart-custom ()
"Use a single key or mouse key to manipulate customizable settings.
Invoked via a key press when in Custom-mode. It assumes that
its caller has already checked that the key was pressed in an
appropriate buffer and has moved the cursor there.
If key is pressed:
(1) on the last line of the buffer, exit Custom mode, potentially
prompting to save any changes;
(2) at the end of any other line, scroll the window down down a windowful;
(3) if a mouse event on a widget, activate the widget or display a menu;
(4) anywhere else, execute the command bound to {RETURN}."
(interactive)
(cond ((last-line-p) (Custom-buffer-done))
((eolp) (smart-scroll-up))
((mouse-event-p last-command-event)
(widget-button-click action-key-release-args))
;; Handle widgets in Custom-mode
(t (Custom-newline (point)))))
(defun smart-custom-assist ()
"Use an assist-key or mouse assist-kkey to manipulate customizable settings.
Invoked via a key press when in Custom-mode. It assumes that
its caller has already checked that the key was pressed in an
appropriate buffer and has moved the cursor there.
If key is pressed:
(1) on the last line of the buffer, exit Custom mode, potentially
prompting to save any changes;
(2) at the end of any other line, scroll the window down down a windowful;
(3) if a mouse event on a widget, activate the widget or display a menu;
(4) anywhere else, execute the command bound to {RETURN}."
(interactive)
(cond ((last-line-p) (Custom-buffer-done))
((eolp) (smart-scroll-down))
((mouse-event-p last-command-event)
(widget-button-click action-key-release-args))
;; Handle widgets in Custom-mode
(t (Custom-newline (point)))))
;;; ************************************************************************
;;; smart-calendar functions
;;; ************************************************************************
(defun smart-calendar ()
"Use a single key or mouse key to manipulate the scrolling calendar.
Invoked via a key press when in calendar-mode. It assumes that its
caller has already checked that the key was pressed in an appropriate buffer
and has moved the cursor there.
If key is pressed:
(1) at the end of the buffer, the calendar is scrolled forward 3 months;
(2) to the left of any dates on a calendar line, the calendar is scrolled
backward 3 months;
(3) on a date, the diary entries for the date, if any, are displayed."
(interactive)
(cond ((smart-eobp) (calendar-cursor-to-nearest-date)
(calendar-scroll-left-three-months 1))
((< (current-column) 5) (calendar-cursor-to-nearest-date)
(calendar-scroll-right-three-months 1))
(t (calendar-cursor-to-nearest-date)
(diary-view-entries 1))))
(defun smart-calendar-assist ()
"Use the assist-key or mouse assist-key to manipulate the scrolling calendar.
Invoked via an assist-key press when in calendar-mode. It assumes that its
caller has already checked that the assist-key was pressed in an appropriate
buffer and has moved the cursor there.
If assist-key is pressed:
(1) at the end of the buffer, the calendar is scrolled backward 3 months;
(2) to the left of any dates on a calendar line, the calendar is scrolled
forward 3 months;
(3) anywhere else, all dates with marking diary entries are marked in the
calendar window."
(interactive)
(cond ((smart-eobp) (calendar-cursor-to-nearest-date)
(calendar-scroll-right-three-months 1))
((< (current-column) 5) (calendar-cursor-to-nearest-date)
(calendar-scroll-left-three-months 1))
(t (diary-mark-entries))))
;;; ************************************************************************
;;; smart-company mode functions
;;; ************************************************************************
;; These functions are called from hkey-alist when keyboard Smart Keys
;; are used. For mouse keys, they are bound to local keys in
;; company-mode's minor mode map.
(defun smart-company-to-definition (event)
"Action Key binding for company-mode completions popup to show item definition.
Use left mouse key, RET or TAB key to select a completion and exit."
(interactive "e")
(when (mouse-event-p last-command-event)
(company-select-mouse event))
(company-show-location))
(defun smart-company-help (event)
"Assist Key binding for company-mode completions popup to show item doc."
(interactive "e")
(when (mouse-event-p last-command-event)
(company-select-mouse event))
(if (featurep 'company-quickhelp)
(company-quickhelp-manual-begin)
(company-show-doc-buffer)))
;;; ************************************************************************
;;; smart-dired functions
;;; ************************************************************************
(defun smart-dired-pathname-up-to-point ()
"Return the part of the pathname up through point, else current directory path.
Assume point is on the first line of a Dired buffer. Use for
direct selection of an ancestor directory of this directory."
(interactive)
(if (not (looking-at "\\s-*$"))
(save-excursion
(re-search-forward "[/:\n]" nil t)
(buffer-substring-no-properties
(if (and (not (bobp)) (= (preceding-char) ?/))
(point)
(1- (point)))
(progn (beginning-of-line)
(skip-syntax-forward "-")
(point))))
default-directory))
(defun smart-dired ()
"Use a single key or mouse key to manipulate directory entries.
Invoked via a key press when in `dired-mode'. It assumes that its
caller has already checked that the key was pressed in an appropriate buffer
and has moved the cursor there.
If key is pressed:
(1) within an entry line, the selected file/directory is displayed
for editing, normally in another window but if an entry has been dragged
for display in another window, then this entry is displayed in the current
window (DisplayHere minor mode is shown in the mode-line; use {g}
to disable it)
(2) on a dired header line (other than the end of line):
(a) within the leading whitespace, then if any deletes are to be
performed, they are executed after user verification; otherwise,
nothing is done;
(b) otherwise, dired is run in another window on the ancestor directory
of the current directory path up through the location of point;
if point is on the first character, then the / root directory
is used.
(3) on or after the last line in the buffer, this dired invocation is quit."
(interactive)
(cond ((save-excursion
(forward-line 0)
(looking-at dired-subdir-regexp))
(cond ((and (looking-at "\\s-")
(save-excursion
(skip-syntax-backward "-"))
(bolp))
;; In whitespace at beginning of a directory header line, perform deletes.
(if (save-excursion
(goto-char (point-min))
(re-search-forward "^D" nil t))
(cond ;; For Tree-dired compatibility
((fboundp 'dired-do-flagged-delete)
(dired-do-flagged-delete))
((fboundp 'dired-do-deletions)
(dired-do-deletions))
(t (error "(smart-dired): No Dired expunge function")))))
(t (hpath:find (smart-dired-pathname-up-to-point)))))
((last-line-p) (quit-window))
(t (hpath:find (dired-get-filename)))))
(defun smart-dired-assist ()
"Use a single assist-key or mouse assist-key to manipulate directory entries.
Invoked via an assist-key press when in `dired-mode'. It assumes that its
caller has already checked that the assist-key was pressed in an appropriate
buffer and has moved the cursor there.
If assist-key is pressed:
(1) on a `~' character, all backup files in the directory are marked for
deletion;
(2) on a `#' character, all auto-save files in the directory are marked for
deletion;
(3) anywhere else within an entry line, the current entry is marked for
deletion;
(4) on or after the last line in the buffer, all delete marks on all entries
are undone."
(interactive)
(cond ((or (last-line-p) (and (first-line-p) (eolp)))
(dired-unmark-all-files ?D)
(goto-char (point-max)))
((looking-at "~") (dired-flag-backup-files))
((looking-at "#") (dired-flag-auto-save-files))
(t
;; Prevent any region selection from causing multiple files
;; to be marked for deletion; we want to mark only one.
(deactivate-mark t)
(dired-flag-file-deletion 1))))
;;; ************************************************************************
;;; smart-gnus functions
;;; ************************************************************************
(defun smart-gnus-group ()
"Use a key or mouse key to move through Gnus Newsgroup listings.
Invoked via a key press when in gnus-group-mode. It assumes that its caller
has already checked that the key was pressed in an appropriate buffer and has
moved the cursor to the selected buffer.
If key is pressed within:
(1) a GNUS-GROUP line, that newsgroup is read;
(2) if `gnus-topic-mode' is active, and on a topic line, the topic is
expanded or collapsed as needed;
(3) to the left of any GNUS-GROUP line, on any of the whitespace, the current
group is unsubscribed or resubscribed;
(4) at the end of the GNUS-GROUP buffer, after all lines, checks for new
news."
(interactive)
(cond ((last-line-p) (gnus-group-get-new-news))
((progn (skip-chars-backward " U") (bolp))
(gnus-group-unsubscribe-current-group))
((gnus-topic-mode-p) (gnus-topic-read-group))
(t (gnus-group-read-group nil))))
(defun smart-gnus-group-assist ()
"Use an assist-key or assist-mouse key to move through Gnus Newsgroup listings.
Invoked via an assist-key press when in gnus-group-mode. It assumes that its
caller has already checked that the key was pressed in an appropriate buffer
and has moved the cursor to the selected buffer.
If key is pressed within:
(1) a GNUS-GROUP line, that newsgroup is read;
(2) if `gnus-topic-mode' is active, and on a topic line, the topic is
expanded or collapsed as needed;
(3) to the left of any GNUS-GROUP line, on any of the whitespace, the user is
prompted for a group name to subscribe or unsubscribe to;
(4) at the end of the GNUS-GROUP buffer, after all lines, quits from the
newsreader."
(interactive)
(cond ((last-line-p) (gnus-group-exit))
((progn (skip-chars-backward " U") (bolp))
(call-interactively 'gnus-group-unsubscribe-group))
((gnus-topic-mode-p) (gnus-topic-read-group))
(t (gnus-group-read-group nil))))
(defun smart-gnus-summary ()
"Use a key or mouse key to move through Gnus News article listings.
Invoked via a key press when in gnus-summary-mode. It assumes that its caller
has already checked that the key was pressed in an appropriate buffer and has
moved the cursor to the selected buffer.
If key is pressed within:
(1) to the left of an article number, that article is marked as unread;
(2) a GNUS-SUMMARY line, that article is read, marked deleted, and scrolled
forward;
(3) at the end of the GNUS-SUMMARY buffer, the next undeleted article
is read or the next group is entered."
(interactive)
(cond ((last-line-p)
(if gnus-current-article
(progn (goto-char (point-min))
(re-search-forward
(format "^.[ ]+%d:" gnus-current-article) nil t)
(setq this-command 'gnus-summary-next-page)
(call-interactively 'gnus-summary-next-page))
(goto-char (point-min))
(setq this-command 'gnus-summary-first-unread-article)
(call-interactively 'gnus-summary-first-unread-article)))
((save-excursion (skip-chars-backward " D") (bolp))
(gnus-summary-mark-article-as-unread ?\ )
(forward-line 1))
(t (setq this-command 'gnus-summary-next-page)
(call-interactively 'gnus-summary-next-page))))
(defun smart-gnus-summary-assist ()
"Use an assist-key or assist-mouse key to move through Gnus News articles.
Invoked via an assist-key press when in gnus-summary-mode. It assumes that its
caller has already checked that the key was pressed in an appropriate buffer
and has moved the cursor to the selected buffer.