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43f5740b71
* mouse.el (mouse-set-region): Link to `mouse-drag-copy-region' in the doc string (bug#7015).
2144 lines
82 KiB
EmacsLisp
2144 lines
82 KiB
EmacsLisp
;;; mouse.el --- window system-independent mouse support
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;; Copyright (C) 1993-1995, 1999-2011 Free Software Foundation, Inc.
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;; Maintainer: FSF
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;; Keywords: hardware, mouse
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;; Package: emacs
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;; This file is part of GNU Emacs.
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;; GNU Emacs 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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;; GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This package provides various useful commands (including help
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;; system access) through the mouse. All this code assumes that mouse
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;; interpretation has been abstracted into Emacs input events.
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;;
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;; The code is rather X-dependent.
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;;; Code:
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;;; Utility functions.
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;; Indent track-mouse like progn.
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(put 'track-mouse 'lisp-indent-function 0)
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(defcustom mouse-yank-at-point nil
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"If non-nil, mouse yank commands yank at point instead of at click."
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:type 'boolean
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:group 'mouse)
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(defcustom mouse-drag-copy-region nil
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"If non-nil, copy to kill-ring upon mouse adjustments of the region.
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This affects `mouse-save-then-kill' (\\[mouse-save-then-kill]) in
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addition to mouse drags."
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:type 'boolean
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:version "24.1"
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:group 'mouse)
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(defcustom mouse-1-click-follows-link 450
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"Non-nil means that clicking Mouse-1 on a link follows the link.
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With the default setting, an ordinary Mouse-1 click on a link
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performs the same action as Mouse-2 on that link, while a longer
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Mouse-1 click \(hold down the Mouse-1 button for more than 450
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milliseconds) performs the original Mouse-1 binding \(which
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typically sets point where you click the mouse).
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If value is an integer, the time elapsed between pressing and
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releasing the mouse button determines whether to follow the link
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or perform the normal Mouse-1 action (typically set point).
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The absolute numeric value specifices the maximum duration of a
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\"short click\" in milliseconds. A positive value means that a
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short click follows the link, and a longer click performs the
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normal action. A negative value gives the opposite behavior.
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If value is `double', a double click follows the link.
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Otherwise, a single Mouse-1 click unconditionally follows the link.
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Note that dragging the mouse never follows the link.
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This feature only works in modes that specifically identify
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clickable text as links, so it may not work with some external
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packages. See `mouse-on-link-p' for details."
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:version "22.1"
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:type '(choice (const :tag "Disabled" nil)
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(const :tag "Double click" double)
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(number :tag "Single click time limit" :value 450)
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(other :tag "Single click" t))
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:group 'mouse)
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(defcustom mouse-1-click-in-non-selected-windows t
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"If non-nil, a Mouse-1 click also follows links in non-selected windows.
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If nil, a Mouse-1 click on a link in a non-selected window performs
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the normal mouse-1 binding, typically selects the window and sets
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point at the click position."
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:type 'boolean
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:version "22.1"
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:group 'mouse)
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;; Provide a mode-specific menu on a mouse button.
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(defun popup-menu (menu &optional position prefix)
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"Popup the given menu and call the selected option.
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MENU can be a keymap, an easymenu-style menu or a list of keymaps as for
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`x-popup-menu'.
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POSITION can be a click event or ((XOFFSET YOFFSET) WINDOW) and defaults to
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the current mouse position.
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PREFIX is the prefix argument (if any) to pass to the command."
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(let* ((map (cond
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((keymapp menu) menu)
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((and (listp menu) (keymapp (car menu))) menu)
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(t (let* ((map (easy-menu-create-menu (car menu) (cdr menu)))
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(filter (when (symbolp map)
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(plist-get (get map 'menu-prop) :filter))))
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(if filter (funcall filter (symbol-function map)) map)))))
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event cmd)
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(unless position
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(let ((mp (mouse-pixel-position)))
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(setq position (list (list (cadr mp) (cddr mp)) (car mp)))))
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;; The looping behavior was taken from lmenu's popup-menu-popup
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(while (and map (setq event
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;; map could be a prefix key, in which case
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;; we need to get its function cell
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;; definition.
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(x-popup-menu position (indirect-function map))))
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;; Strangely x-popup-menu returns a list.
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;; mouse-major-mode-menu was using a weird:
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;; (key-binding (apply 'vector (append '(menu-bar) menu-prefix events)))
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(setq cmd
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(if (and (not (keymapp map)) (listp map))
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;; We were given a list of keymaps. Search them all
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;; in sequence until a first binding is found.
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(let ((mouse-click (apply 'vector event))
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binding)
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(while (and map (null binding))
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(setq binding (lookup-key (car map) mouse-click))
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(if (numberp binding) ; `too long'
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(setq binding nil))
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(setq map (cdr map)))
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binding)
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;; We were given a single keymap.
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(lookup-key map (apply 'vector event))))
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;; Clear out echoing, which perhaps shows a prefix arg.
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(message "")
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;; Maybe try again but with the submap.
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(setq map (if (keymapp cmd) cmd)))
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;; If the user did not cancel by refusing to select,
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;; and if the result is a command, run it.
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(when (and (null map) (commandp cmd))
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(setq prefix-arg prefix)
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;; `setup-specified-language-environment', for instance,
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;; expects this to be set from a menu keymap.
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(setq last-command-event (car (last event)))
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;; mouse-major-mode-menu was using `command-execute' instead.
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(call-interactively cmd))))
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(defun minor-mode-menu-from-indicator (indicator)
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"Show menu for minor mode specified by INDICATOR.
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Interactively, INDICATOR is read using completion.
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If there is no menu defined for the minor mode, then create one with
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items `Turn Off' and `Help'."
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(interactive
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(list (completing-read
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"Minor mode indicator: "
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(describe-minor-mode-completion-table-for-indicator))))
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(let* ((minor-mode (lookup-minor-mode-from-indicator indicator))
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(mm-fun (or (get minor-mode :minor-mode-function) minor-mode)))
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(unless minor-mode (error "Cannot find minor mode for `%s'" indicator))
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(let* ((map (cdr-safe (assq minor-mode minor-mode-map-alist)))
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(menu (and (keymapp map) (lookup-key map [menu-bar]))))
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(setq menu
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(if menu
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(mouse-menu-non-singleton menu)
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`(keymap
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,indicator
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(turn-off menu-item "Turn Off minor mode" ,mm-fun)
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(help menu-item "Help for minor mode"
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(lambda () (interactive)
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(describe-function ',mm-fun))))))
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(popup-menu menu))))
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(defun mouse-minor-mode-menu (event)
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"Show minor-mode menu for EVENT on minor modes area of the mode line."
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(interactive "@e")
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(let ((indicator (car (nth 4 (car (cdr event))))))
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(minor-mode-menu-from-indicator indicator)))
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(defun mouse-menu-major-mode-map ()
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(let* (;; Keymap from which to inherit; may be null.
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(ancestor (mouse-menu-non-singleton
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(and (current-local-map)
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(local-key-binding [menu-bar]))))
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;; Make a keymap in which our last command leads to a menu or
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;; default to the edit menu.
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(newmap (if ancestor
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(make-sparse-keymap (concat (format-mode-line mode-name)
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" Mode"))
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menu-bar-edit-menu))
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uniq)
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(if ancestor
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(set-keymap-parent newmap ancestor))
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newmap))
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(defun mouse-menu-non-singleton (menubar)
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"Return menu keybar MENUBAR, or a lone submenu inside it.
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If MENUBAR defines exactly one submenu, return just that submenu.
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Otherwise, return MENUBAR."
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(if menubar
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(let (submap)
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(map-keymap
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(lambda (k v) (setq submap (if submap t (cons k v))))
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(keymap-canonicalize menubar))
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(if (eq submap t)
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menubar
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(lookup-key menubar (vector (car submap)))))))
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(defun mouse-menu-bar-map ()
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"Return a keymap equivalent to the menu bar.
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The contents are the items that would be in the menu bar whether or
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not it is actually displayed."
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(let* ((local-menu (and (current-local-map)
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(lookup-key (current-local-map) [menu-bar])))
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(global-menu (lookup-key global-map [menu-bar]))
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;; If a keymap doesn't have a prompt string (a lazy
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;; programmer didn't bother to provide one), create it and
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;; insert it into the keymap; each keymap gets its own
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;; prompt. This is required for non-toolkit versions to
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;; display non-empty menu pane names.
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(minor-mode-menus
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(mapcar
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(lambda (menu)
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(let* ((minor-mode (car menu))
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(menu (cdr menu))
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(title-or-map (cadr menu)))
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(or (stringp title-or-map)
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(setq menu
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(cons 'keymap
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(cons (concat
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(capitalize (subst-char-in-string
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?- ?\s (symbol-name
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minor-mode)))
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" Menu")
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(cdr menu)))))
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menu))
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(minor-mode-key-binding [menu-bar])))
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(local-title-or-map (and local-menu (cadr local-menu)))
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(global-title-or-map (cadr global-menu)))
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(or (null local-menu)
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(stringp local-title-or-map)
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(setq local-menu (cons 'keymap
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(cons (concat (format-mode-line mode-name)
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" Mode Menu")
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(cdr local-menu)))))
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(or (stringp global-title-or-map)
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(setq global-menu (cons 'keymap
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(cons "Global Menu"
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(cdr global-menu)))))
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;; Supplying the list is faster than making a new map.
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;; FIXME: We have a problem here: we have to use the global/local/minor
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;; so they're displayed in the expected order, but later on in the command
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;; loop, they're actually looked up in the opposite order.
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(apply 'append
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global-menu
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local-menu
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minor-mode-menus)))
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(defun mouse-major-mode-menu (event &optional prefix)
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"Pop up a mode-specific menu of mouse commands.
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Default to the Edit menu if the major mode doesn't define a menu."
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(interactive "@e\nP")
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(popup-menu (mouse-menu-major-mode-map) event prefix))
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(make-obsolete 'mouse-major-mode-menu 'mouse-menu-major-mode-map "23.1")
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(defun mouse-popup-menubar (event prefix)
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"Pop up a menu equivalent to the menu bar for keyboard EVENT with PREFIX.
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The contents are the items that would be in the menu bar whether or
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not it is actually displayed."
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(interactive "@e \nP")
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(popup-menu (mouse-menu-bar-map) (unless (integerp event) event) prefix))
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(make-obsolete 'mouse-popup-menubar 'mouse-menu-bar-map "23.1")
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(defun mouse-popup-menubar-stuff (event prefix)
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"Popup a menu like either `mouse-major-mode-menu' or `mouse-popup-menubar'.
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Use the former if the menu bar is showing, otherwise the latter."
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(interactive "@e\nP")
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(popup-menu
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(if (zerop (or (frame-parameter nil 'menu-bar-lines) 0))
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(mouse-menu-bar-map)
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(mouse-menu-major-mode-map))
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event prefix))
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(make-obsolete 'mouse-popup-menubar-stuff nil "23.1")
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;; Commands that operate on windows.
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(defun mouse-minibuffer-check (event)
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(let ((w (posn-window (event-start event))))
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(and (window-minibuffer-p w)
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(not (minibuffer-window-active-p w))
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(error "Minibuffer window is not active")))
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;; Give temporary modes such as isearch a chance to turn off.
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(run-hooks 'mouse-leave-buffer-hook))
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(defun mouse-delete-window (click)
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"Delete the window you click on.
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Do nothing if the frame has just one window.
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This command must be bound to a mouse click."
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(interactive "e")
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(unless (one-window-p t)
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(mouse-minibuffer-check click)
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(delete-window (posn-window (event-start click)))))
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(defun mouse-select-window (click)
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"Select the window clicked on; don't move point."
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(interactive "e")
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(mouse-minibuffer-check click)
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(let ((oframe (selected-frame))
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(frame (window-frame (posn-window (event-start click)))))
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(select-window (posn-window (event-start click)))
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(raise-frame frame)
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(select-frame frame)
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(or (eq frame oframe)
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(set-mouse-position (selected-frame) (1- (frame-width)) 0))))
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(defun mouse-tear-off-window (click)
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"Delete the window clicked on, and create a new frame displaying its buffer."
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(interactive "e")
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(mouse-minibuffer-check click)
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(let* ((window (posn-window (event-start click)))
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(buf (window-buffer window))
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(frame (make-frame)))
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(select-frame frame)
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(switch-to-buffer buf)
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(delete-window window)))
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(defun mouse-delete-other-windows ()
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"Delete all windows except the one you click on."
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(interactive "@")
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(delete-other-windows))
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(defun mouse-split-window-vertically (click)
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"Select Emacs window mouse is on, then split it vertically in half.
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The window is split at the line clicked on.
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This command must be bound to a mouse click."
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(interactive "@e")
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(mouse-minibuffer-check click)
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(let ((start (event-start click)))
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(select-window (posn-window start))
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(let ((new-height (1+ (cdr (posn-col-row (event-end click)))))
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(first-line window-min-height)
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(last-line (- (window-height) window-min-height)))
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(if (< last-line first-line)
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(error "Window too short to split")
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(split-window-vertically
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(min (max new-height first-line) last-line))))))
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(defun mouse-split-window-horizontally (click)
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"Select Emacs window mouse is on, then split it horizontally in half.
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The window is split at the column clicked on.
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This command must be bound to a mouse click."
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(interactive "@e")
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(mouse-minibuffer-check click)
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(let ((start (event-start click)))
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(select-window (posn-window start))
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(let ((new-width (1+ (car (posn-col-row (event-end click)))))
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(first-col window-min-width)
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(last-col (- (window-width) window-min-width)))
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(if (< last-col first-col)
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(error "Window too narrow to split")
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(split-window-horizontally
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(min (max new-width first-col) last-col))))))
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(defun mouse-drag-window-above (window)
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"Return the (or a) window directly above WINDOW.
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That means one whose bottom edge is at the same height as WINDOW's top edge."
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(let ((start-top (nth 1 (window-edges window)))
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(start-left (nth 0 (window-edges window)))
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(start-right (nth 2 (window-edges window)))
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(start-window window)
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above-window)
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(setq window (previous-window window 0))
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(while (and (not above-window) (not (eq window start-window)))
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(let ((left (nth 0 (window-edges window)))
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(right (nth 2 (window-edges window))))
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(when (and (= (+ (window-height window) (nth 1 (window-edges window)))
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start-top)
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(or (and (<= left start-left) (<= start-right right))
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(and (<= start-left left) (<= left start-right))
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(and (<= start-left right) (<= right start-right))))
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(setq above-window window)))
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(setq window (previous-window window)))
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above-window))
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(defun mouse-drag-move-window-bottom (window growth)
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"Move the bottom of WINDOW up or down by GROWTH lines.
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Move it down if GROWTH is positive, or up if GROWTH is negative.
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If this would make WINDOW too short,
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shrink the window or windows above it to make room."
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(condition-case nil
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(adjust-window-trailing-edge window growth nil)
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(error nil)))
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(defsubst mouse-drag-move-window-top (window growth)
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"Move the top of WINDOW up or down by GROWTH lines.
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Move it down if GROWTH is positive, or up if GROWTH is negative.
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If this would make WINDOW too short, shrink the window or windows
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above it to make room."
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;; Moving the top of WINDOW is actually moving the bottom of the
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;; window above.
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(let ((window-above (mouse-drag-window-above window)))
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(and window-above
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(mouse-drag-move-window-bottom window-above (- growth)))))
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(defun mouse-drag-mode-line-1 (start-event mode-line-p)
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"Change the height of a window by dragging on the mode or header line.
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START-EVENT is the starting mouse-event of the drag action.
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MODE-LINE-P non-nil means dragging a mode line; nil means a header line."
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;; Give temporary modes such as isearch a chance to turn off.
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(run-hooks 'mouse-leave-buffer-hook)
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(let* ((done nil)
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(echo-keystrokes 0)
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(start (event-start start-event))
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(start-event-window (posn-window start))
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(start-event-frame (window-frame start-event-window))
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(start-nwindows (count-windows t))
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(on-link (and mouse-1-click-follows-link
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(or mouse-1-click-in-non-selected-windows
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(eq (posn-window start) (selected-window)))
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(mouse-on-link-p start)))
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(minibuffer (frame-parameter nil 'minibuffer))
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should-enlarge-minibuffer event mouse y top bot edges wconfig growth)
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(track-mouse
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(progn
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;; if this is the bottommost ordinary window, then to
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;; move its modeline the minibuffer must be enlarged.
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||
(setq should-enlarge-minibuffer
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(and minibuffer
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mode-line-p
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(not (one-window-p t))
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(= (nth 1 (window-edges minibuffer))
|
||
(nth 3 (window-edges start-event-window)))))
|
||
|
||
;; loop reading events and sampling the position of
|
||
;; the mouse.
|
||
(while (not done)
|
||
(setq event (read-event)
|
||
mouse (mouse-position))
|
||
|
||
;; do nothing if
|
||
;; - there is a switch-frame event.
|
||
;; - the mouse isn't in the frame that we started in
|
||
;; - the mouse isn't in any Emacs frame
|
||
;; drag if
|
||
;; - there is a mouse-movement event
|
||
;; - there is a scroll-bar-movement event
|
||
;; (same as mouse movement for our purposes)
|
||
;; quit if
|
||
;; - there is a keyboard event or some other unknown event.
|
||
(cond ((not (consp event))
|
||
(setq done t))
|
||
|
||
((memq (car event) '(switch-frame select-window))
|
||
nil)
|
||
|
||
((not (memq (car event) '(mouse-movement scroll-bar-movement)))
|
||
(when (consp event)
|
||
;; Do not unread a drag-mouse-1 event since it will cause the
|
||
;; selection of the window above when dragging the modeline
|
||
;; above the selected window.
|
||
(unless (eq (car event) 'drag-mouse-1)
|
||
(push event unread-command-events)))
|
||
(setq done t))
|
||
|
||
((not (eq (car mouse) start-event-frame))
|
||
nil)
|
||
|
||
((null (car (cdr mouse)))
|
||
nil)
|
||
|
||
(t
|
||
(setq y (cdr (cdr mouse))
|
||
edges (window-edges start-event-window)
|
||
top (nth 1 edges)
|
||
bot (nth 3 edges))
|
||
|
||
;; compute size change needed
|
||
(cond (mode-line-p
|
||
(setq growth (- y bot -1)))
|
||
(t ; header line
|
||
(when (< (- bot y) window-min-height)
|
||
(setq y (- bot window-min-height)))
|
||
;; The window's top includes the header line!
|
||
(setq growth (- top y))))
|
||
(setq wconfig (current-window-configuration))
|
||
|
||
;; Check for an error case.
|
||
(when (and (/= growth 0)
|
||
(not minibuffer)
|
||
(one-window-p t))
|
||
(error "Attempt to resize sole window"))
|
||
|
||
;; If we ever move, make sure we don't mistakenly treat
|
||
;; some unexpected `mouse-1' final event as a sign that
|
||
;; this whole drag was nothing more than a click.
|
||
(if (/= growth 0) (setq on-link nil))
|
||
|
||
;; grow/shrink minibuffer?
|
||
(if should-enlarge-minibuffer
|
||
(unless resize-mini-windows
|
||
(mouse-drag-move-window-bottom start-event-window growth))
|
||
;; no. grow/shrink the selected window
|
||
;(message "growth = %d" growth)
|
||
(if mode-line-p
|
||
(mouse-drag-move-window-bottom start-event-window growth)
|
||
(mouse-drag-move-window-top start-event-window growth)))
|
||
|
||
;; if this window's growth caused another
|
||
;; window to be deleted because it was too
|
||
;; short, rescind the change.
|
||
;;
|
||
;; if size change caused space to be stolen
|
||
;; from a window above this one, rescind the
|
||
;; change, but only if we didn't grow/shrink
|
||
;; the minibuffer. minibuffer size changes
|
||
;; can cause all windows to shrink... no way
|
||
;; around it.
|
||
(when (or (/= start-nwindows (count-windows t))
|
||
(and (not should-enlarge-minibuffer)
|
||
(> growth 0)
|
||
mode-line-p
|
||
(/= top
|
||
(nth 1 (window-edges
|
||
;; Choose right window.
|
||
start-event-window)))))
|
||
(set-window-configuration wconfig)))))
|
||
|
||
;; Presumably if this was just a click, the last event should
|
||
;; be `mouse-1', whereas if this did move the mouse, it should be
|
||
;; a `drag-mouse-1'. In any case `on-link' would have been nulled
|
||
;; above if there had been any significant mouse movement.
|
||
(when (and on-link (eq 'mouse-1 (car-safe event)))
|
||
;; If mouse-2 has never been done by the user, it doesn't
|
||
;; have the necessary property to be interpreted correctly.
|
||
(put 'mouse-2 'event-kind 'mouse-click)
|
||
(push (cons 'mouse-2 (cdr event)) unread-command-events))))))
|
||
|
||
(defun mouse-drag-mode-line (start-event)
|
||
"Change the height of a window by dragging on the mode line."
|
||
(interactive "e")
|
||
(mouse-drag-mode-line-1 start-event t))
|
||
|
||
(defun mouse-drag-header-line (start-event)
|
||
"Change the height of a window by dragging on the header line.
|
||
Windows whose header-lines are at the top of the frame cannot be
|
||
resized by dragging their header-line."
|
||
(interactive "e")
|
||
;; Changing the window's size by dragging its header-line when the
|
||
;; header-line is at the top of the frame is somewhat strange,
|
||
;; because the header-line doesn't move, so don't do it.
|
||
(let* ((start (event-start start-event))
|
||
(window (posn-window start))
|
||
(frame (window-frame window))
|
||
(first-window (frame-first-window frame)))
|
||
(unless (or (eq window first-window)
|
||
(= (nth 1 (window-edges window))
|
||
(nth 1 (window-edges first-window))))
|
||
(mouse-drag-mode-line-1 start-event nil))))
|
||
|
||
|
||
(defun mouse-drag-vertical-line-rightward-window (window)
|
||
"Return a window that is immediately to the right of WINDOW, or nil."
|
||
(let ((bottom (nth 3 (window-inside-edges window)))
|
||
(left (nth 0 (window-inside-edges window)))
|
||
best best-right
|
||
(try (previous-window window)))
|
||
(while (not (eq try window))
|
||
(let ((try-top (nth 1 (window-inside-edges try)))
|
||
(try-bottom (nth 3 (window-inside-edges try)))
|
||
(try-right (nth 2 (window-inside-edges try))))
|
||
(if (and (< try-top bottom)
|
||
(>= try-bottom bottom)
|
||
(< try-right left)
|
||
(or (null best-right) (> try-right best-right)))
|
||
(setq best-right try-right best try)))
|
||
(setq try (previous-window try)))
|
||
best))
|
||
|
||
(defun mouse-drag-vertical-line (start-event)
|
||
"Change the width of a window by dragging on the vertical line."
|
||
(interactive "e")
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
(let* ((done nil)
|
||
(echo-keystrokes 0)
|
||
(start-event-frame (window-frame (car (car (cdr start-event)))))
|
||
(start-event-window (car (car (cdr start-event))))
|
||
event mouse x left right edges growth
|
||
(which-side
|
||
(or (cdr (assq 'vertical-scroll-bars (frame-parameters start-event-frame)))
|
||
'right)))
|
||
(cond
|
||
((one-window-p t)
|
||
(error "Attempt to resize sole ordinary window"))
|
||
((and (eq which-side 'right)
|
||
(>= (nth 2 (window-inside-edges start-event-window))
|
||
(frame-width start-event-frame)))
|
||
(error "Attempt to drag rightmost scrollbar"))
|
||
((and (eq which-side 'left)
|
||
(= (nth 0 (window-inside-edges start-event-window)) 0))
|
||
(error "Attempt to drag leftmost scrollbar")))
|
||
(track-mouse
|
||
(progn
|
||
;; loop reading events and sampling the position of
|
||
;; the mouse.
|
||
(while (not done)
|
||
(setq event (read-event)
|
||
mouse (mouse-position))
|
||
;; do nothing if
|
||
;; - there is a switch-frame event.
|
||
;; - the mouse isn't in the frame that we started in
|
||
;; - the mouse isn't in any Emacs frame
|
||
;; drag if
|
||
;; - there is a mouse-movement event
|
||
;; - there is a scroll-bar-movement event
|
||
;; (same as mouse movement for our purposes)
|
||
;; quit if
|
||
;; - there is a keyboard event or some other unknown event
|
||
;; unknown event.
|
||
(cond ((integerp event)
|
||
(setq done t))
|
||
((memq (car event) '(switch-frame select-window))
|
||
nil)
|
||
((not (memq (car event)
|
||
'(mouse-movement scroll-bar-movement)))
|
||
(if (consp event)
|
||
(setq unread-command-events
|
||
(cons event unread-command-events)))
|
||
(setq done t))
|
||
((not (eq (car mouse) start-event-frame))
|
||
nil)
|
||
((null (car (cdr mouse)))
|
||
nil)
|
||
(t
|
||
(let ((window
|
||
;; If the scroll bar is on the window's left,
|
||
;; adjust the window on the left.
|
||
(if (eq which-side 'right)
|
||
start-event-window
|
||
(mouse-drag-vertical-line-rightward-window
|
||
start-event-window))))
|
||
(setq x (- (car (cdr mouse))
|
||
(if (eq which-side 'right) 0 2))
|
||
edges (window-edges window)
|
||
left (nth 0 edges)
|
||
right (nth 2 edges))
|
||
;; scale back a move that would make the
|
||
;; window too thin.
|
||
(if (< (- x left -1) window-min-width)
|
||
(setq x (+ left window-min-width -1)))
|
||
;; compute size change needed
|
||
(setq growth (- x right -1))
|
||
(condition-case nil
|
||
(adjust-window-trailing-edge window growth t)
|
||
(error nil))))))))))
|
||
|
||
(defun mouse-set-point (event)
|
||
"Move point to the position clicked on with the mouse.
|
||
This should be bound to a mouse click event type."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check event)
|
||
;; Use event-end in case called from mouse-drag-region.
|
||
;; If EVENT is a click, event-end and event-start give same value.
|
||
(posn-set-point (event-end event)))
|
||
|
||
(defvar mouse-last-region-beg nil)
|
||
(defvar mouse-last-region-end nil)
|
||
(defvar mouse-last-region-tick nil)
|
||
|
||
(defun mouse-region-match ()
|
||
"Return non-nil if there's an active region that was set with the mouse."
|
||
(and (mark t) mark-active
|
||
(eq mouse-last-region-beg (region-beginning))
|
||
(eq mouse-last-region-end (region-end))
|
||
(eq mouse-last-region-tick (buffer-modified-tick))))
|
||
|
||
(defun mouse-set-region (click)
|
||
"Set the region to the text dragged over, and copy to kill ring.
|
||
This should be bound to a mouse drag event.
|
||
See the `mouse-drag-copy-region' variable to control whether this
|
||
command alters the kill ring or not."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check click)
|
||
(select-window (posn-window (event-start click)))
|
||
(let ((beg (posn-point (event-start click)))
|
||
(end (posn-point (event-end click))))
|
||
(and mouse-drag-copy-region (integerp beg) (integerp end)
|
||
;; Don't set this-command to `kill-region', so a following
|
||
;; C-w won't double the text in the kill ring. Ignore
|
||
;; `last-command' so we don't append to a preceding kill.
|
||
(let (this-command last-command deactivate-mark)
|
||
(copy-region-as-kill beg end)))
|
||
(if (numberp beg) (goto-char beg))
|
||
;; On a text terminal, bounce the cursor.
|
||
(or transient-mark-mode
|
||
(window-system)
|
||
(sit-for 1))
|
||
(push-mark)
|
||
(set-mark (point))
|
||
(if (numberp end) (goto-char end))
|
||
(mouse-set-region-1)))
|
||
|
||
(defun mouse-set-region-1 ()
|
||
;; Set transient-mark-mode for a little while.
|
||
(unless (eq (car-safe transient-mark-mode) 'only)
|
||
(setq transient-mark-mode
|
||
(cons 'only
|
||
(unless (eq transient-mark-mode 'lambda)
|
||
transient-mark-mode))))
|
||
(setq mouse-last-region-beg (region-beginning))
|
||
(setq mouse-last-region-end (region-end))
|
||
(setq mouse-last-region-tick (buffer-modified-tick)))
|
||
|
||
(defcustom mouse-scroll-delay 0.25
|
||
"The pause between scroll steps caused by mouse drags, in seconds.
|
||
If you drag the mouse beyond the edge of a window, Emacs scrolls the
|
||
window to bring the text beyond that edge into view, with a delay of
|
||
this many seconds between scroll steps. Scrolling stops when you move
|
||
the mouse back into the window, or release the button.
|
||
This variable's value may be non-integral.
|
||
Setting this to zero causes Emacs to scroll as fast as it can."
|
||
:type 'number
|
||
:group 'mouse)
|
||
|
||
(defcustom mouse-scroll-min-lines 1
|
||
"The minimum number of lines scrolled by dragging mouse out of window.
|
||
Moving the mouse out the top or bottom edge of the window begins
|
||
scrolling repeatedly. The number of lines scrolled per repetition
|
||
is normally equal to the number of lines beyond the window edge that
|
||
the mouse has moved. However, it always scrolls at least the number
|
||
of lines specified by this variable."
|
||
:type 'integer
|
||
:group 'mouse)
|
||
|
||
(defun mouse-scroll-subr (window jump &optional overlay start)
|
||
"Scroll the window WINDOW, JUMP lines at a time, until new input arrives.
|
||
If OVERLAY is an overlay, let it stretch from START to the far edge of
|
||
the newly visible text.
|
||
Upon exit, point is at the far edge of the newly visible text."
|
||
(cond
|
||
((and (> jump 0) (< jump mouse-scroll-min-lines))
|
||
(setq jump mouse-scroll-min-lines))
|
||
((and (< jump 0) (< (- jump) mouse-scroll-min-lines))
|
||
(setq jump (- mouse-scroll-min-lines))))
|
||
(let ((opoint (point)))
|
||
(while (progn
|
||
(goto-char (window-start window))
|
||
(if (not (zerop (vertical-motion jump window)))
|
||
(progn
|
||
(set-window-start window (point))
|
||
(if (natnump jump)
|
||
(if (window-end window)
|
||
(progn
|
||
(goto-char (window-end window))
|
||
;; window-end doesn't reflect the window's new
|
||
;; start position until the next redisplay.
|
||
(vertical-motion (1- jump) window))
|
||
(vertical-motion (- (window-height window) 2)))
|
||
(goto-char (window-start window)))
|
||
(if overlay
|
||
(move-overlay overlay start (point)))
|
||
;; Now that we have scrolled WINDOW properly,
|
||
;; put point back where it was for the redisplay
|
||
;; so that we don't mess up the selected window.
|
||
(or (eq window (selected-window))
|
||
(goto-char opoint))
|
||
(sit-for mouse-scroll-delay)))))
|
||
(or (eq window (selected-window))
|
||
(goto-char opoint))))
|
||
|
||
(defvar mouse-selection-click-count 0)
|
||
|
||
(defvar mouse-selection-click-count-buffer nil)
|
||
|
||
(defun mouse-drag-region (start-event)
|
||
"Set the region to the text that the mouse is dragged over.
|
||
Highlight the drag area as you move the mouse.
|
||
This must be bound to a button-down mouse event.
|
||
In Transient Mark mode, the highlighting remains as long as the mark
|
||
remains active. Otherwise, it remains until the next input event.
|
||
|
||
If the click is in the echo area, display the `*Messages*' buffer."
|
||
(interactive "e")
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
(mouse-drag-track start-event t))
|
||
|
||
|
||
(defun mouse-posn-property (pos property)
|
||
"Look for a property at click position.
|
||
POS may be either a buffer position or a click position like
|
||
those returned from `event-start'. If the click position is on
|
||
a string, the text property PROPERTY is examined.
|
||
If this is nil or the click is not on a string, then
|
||
the corresponding buffer position is searched for PROPERTY.
|
||
If PROPERTY is encountered in one of those places,
|
||
its value is returned."
|
||
(if (consp pos)
|
||
(let ((w (posn-window pos)) (pt (posn-point pos))
|
||
(str (posn-string pos)))
|
||
(or (and str
|
||
(get-text-property (cdr str) property (car str)))
|
||
(and pt
|
||
(get-char-property pt property w))))
|
||
(get-char-property pos property)))
|
||
|
||
(defun mouse-on-link-p (pos)
|
||
"Return non-nil if POS is on a link in the current buffer.
|
||
POS must be a buffer position in the current buffer or a mouse
|
||
event location in the selected window (see `event-start').
|
||
However, if `mouse-1-click-in-non-selected-windows' is non-nil,
|
||
POS may be a mouse event location in any window.
|
||
|
||
A clickable link is identified by one of the following methods:
|
||
|
||
- If the character at POS has a non-nil `follow-link' text or
|
||
overlay property, the value of that property determines what to do.
|
||
|
||
- If there is a local key-binding or a keybinding at position POS
|
||
for the `follow-link' event, the binding of that event determines
|
||
what to do.
|
||
|
||
The resulting value determine whether POS is inside a link:
|
||
|
||
- If the value is `mouse-face', POS is inside a link if there
|
||
is a non-nil `mouse-face' property at POS. Return t in this case.
|
||
|
||
- If the value is a function, FUNC, POS is inside a link if
|
||
the call \(FUNC POS) returns non-nil. Return the return value
|
||
from that call. Arg is \(posn-point POS) if POS is a mouse event.
|
||
|
||
- Otherwise, return the value itself.
|
||
|
||
The return value is interpreted as follows:
|
||
|
||
- If it is a string, the mouse-1 event is translated into the
|
||
first character of the string, i.e. the action of the mouse-1
|
||
click is the local or global binding of that character.
|
||
|
||
- If it is a vector, the mouse-1 event is translated into the
|
||
first element of that vector, i.e. the action of the mouse-1
|
||
click is the local or global binding of that event.
|
||
|
||
- Otherwise, the mouse-1 event is translated into a mouse-2 event
|
||
at the same position."
|
||
(let ((action
|
||
(and (or (not (consp pos))
|
||
mouse-1-click-in-non-selected-windows
|
||
(eq (selected-window) (posn-window pos)))
|
||
(or (mouse-posn-property pos 'follow-link)
|
||
(key-binding [follow-link] nil t pos)))))
|
||
(cond
|
||
((eq action 'mouse-face)
|
||
(and (mouse-posn-property pos 'mouse-face) t))
|
||
((functionp action)
|
||
;; FIXME: This seems questionable if the click is not in a buffer.
|
||
;; Should we instead decide that `action' takes a `posn'?
|
||
(if (consp pos)
|
||
(with-current-buffer (window-buffer (posn-window pos))
|
||
(funcall action (posn-point pos)))
|
||
(funcall action pos)))
|
||
(t action))))
|
||
|
||
(defun mouse-fixup-help-message (msg)
|
||
"Fix help message MSG for `mouse-1-click-follows-link'."
|
||
(let (mp pos)
|
||
(if (and mouse-1-click-follows-link
|
||
(stringp msg)
|
||
(string-match-p "\\`mouse-2" msg)
|
||
(setq mp (mouse-pixel-position))
|
||
(consp (setq pos (cdr mp)))
|
||
(car pos) (>= (car pos) 0)
|
||
(cdr pos) (>= (cdr pos) 0)
|
||
(setq pos (posn-at-x-y (car pos) (cdr pos) (car mp)))
|
||
(windowp (posn-window pos)))
|
||
(with-current-buffer (window-buffer (posn-window pos))
|
||
(if (mouse-on-link-p pos)
|
||
(setq msg (concat
|
||
(cond
|
||
((eq mouse-1-click-follows-link 'double) "double-")
|
||
((and (integerp mouse-1-click-follows-link)
|
||
(< mouse-1-click-follows-link 0)) "Long ")
|
||
(t ""))
|
||
"mouse-1" (substring msg 7)))))))
|
||
msg)
|
||
|
||
(defun mouse-drag-track (start-event &optional
|
||
do-mouse-drag-region-post-process)
|
||
"Track mouse drags by highlighting area between point and cursor.
|
||
The region will be defined with mark and point.
|
||
DO-MOUSE-DRAG-REGION-POST-PROCESS should only be used by
|
||
`mouse-drag-region'."
|
||
(mouse-minibuffer-check start-event)
|
||
(setq mouse-selection-click-count-buffer (current-buffer))
|
||
(deactivate-mark)
|
||
(let* ((original-window (selected-window))
|
||
;; We've recorded what we needed from the current buffer and
|
||
;; window, now let's jump to the place of the event, where things
|
||
;; are happening.
|
||
(_ (mouse-set-point start-event))
|
||
(echo-keystrokes 0)
|
||
(start-posn (event-start start-event))
|
||
(start-point (posn-point start-posn))
|
||
(start-window (posn-window start-posn))
|
||
(start-window-start (window-start start-window))
|
||
(start-hscroll (window-hscroll start-window))
|
||
(bounds (window-edges start-window))
|
||
(make-cursor-line-fully-visible nil)
|
||
(top (nth 1 bounds))
|
||
(bottom (if (window-minibuffer-p start-window)
|
||
(nth 3 bounds)
|
||
;; Don't count the mode line.
|
||
(1- (nth 3 bounds))))
|
||
(on-link (and mouse-1-click-follows-link
|
||
(or mouse-1-click-in-non-selected-windows
|
||
(eq start-window original-window))
|
||
;; Use start-point before the intangibility
|
||
;; treatment, in case we click on a link inside an
|
||
;; intangible text.
|
||
(mouse-on-link-p start-posn)))
|
||
(click-count (1- (event-click-count start-event)))
|
||
(remap-double-click (and on-link
|
||
(eq mouse-1-click-follows-link 'double)
|
||
(= click-count 1)))
|
||
;; Suppress automatic hscrolling, because that is a nuisance
|
||
;; when setting point near the right fringe (but see below).
|
||
(automatic-hscrolling-saved automatic-hscrolling)
|
||
(automatic-hscrolling nil)
|
||
event end end-point)
|
||
|
||
(setq mouse-selection-click-count click-count)
|
||
;; In case the down click is in the middle of some intangible text,
|
||
;; use the end of that text, and put it in START-POINT.
|
||
(if (< (point) start-point)
|
||
(goto-char start-point))
|
||
(setq start-point (point))
|
||
(if remap-double-click
|
||
(setq click-count 0))
|
||
|
||
;; Activate the region, using `mouse-start-end' to determine where
|
||
;; to put point and mark (e.g., double-click will select a word).
|
||
(setq transient-mark-mode
|
||
(if (eq transient-mark-mode 'lambda)
|
||
'(only)
|
||
(cons 'only transient-mark-mode)))
|
||
(let ((range (mouse-start-end start-point start-point click-count)))
|
||
(push-mark (nth 0 range) t t)
|
||
(goto-char (nth 1 range)))
|
||
|
||
;; Track the mouse until we get a non-movement event.
|
||
(track-mouse
|
||
(while (progn
|
||
(setq event (read-event))
|
||
(or (mouse-movement-p event)
|
||
(memq (car-safe event) '(switch-frame select-window))))
|
||
(unless (memq (car-safe event) '(switch-frame select-window))
|
||
;; Automatic hscrolling did not occur during the call to
|
||
;; `read-event'; but if the user subsequently drags the
|
||
;; mouse, go ahead and hscroll.
|
||
(let ((automatic-hscrolling automatic-hscrolling-saved))
|
||
(redisplay))
|
||
(setq end (event-end event)
|
||
end-point (posn-point end))
|
||
(if (and (eq (posn-window end) start-window)
|
||
(integer-or-marker-p end-point))
|
||
(mouse--drag-set-mark-and-point start-point
|
||
end-point click-count)
|
||
(let ((mouse-row (cdr (cdr (mouse-position)))))
|
||
(cond
|
||
((null mouse-row))
|
||
((< mouse-row top)
|
||
(mouse-scroll-subr start-window (- mouse-row top)
|
||
nil start-point))
|
||
((>= mouse-row bottom)
|
||
(mouse-scroll-subr start-window (1+ (- mouse-row bottom))
|
||
nil start-point))))))))
|
||
|
||
;; Handle the terminating event if possible.
|
||
(when (consp event)
|
||
;; Ensure that point is on the end of the last event.
|
||
(when (and (setq end-point (posn-point (event-end event)))
|
||
(eq (posn-window end) start-window)
|
||
(integer-or-marker-p end-point)
|
||
(/= start-point end-point))
|
||
(mouse--drag-set-mark-and-point start-point
|
||
end-point click-count))
|
||
|
||
;; Find its binding.
|
||
(let* ((fun (key-binding (vector (car event))))
|
||
(do-multi-click (and (> (event-click-count event) 0)
|
||
(functionp fun)
|
||
(not (memq fun '(mouse-set-point
|
||
mouse-set-region))))))
|
||
(if (and (/= (mark) (point))
|
||
(not do-multi-click))
|
||
|
||
;; If point has moved, finish the drag.
|
||
(let* (last-command this-command)
|
||
(and mouse-drag-copy-region
|
||
do-mouse-drag-region-post-process
|
||
(let (deactivate-mark)
|
||
(copy-region-as-kill (mark) (point)))))
|
||
|
||
;; If point hasn't moved, run the binding of the
|
||
;; terminating up-event.
|
||
(if do-multi-click
|
||
(goto-char start-point)
|
||
(deactivate-mark))
|
||
(when (and (functionp fun)
|
||
(= start-hscroll (window-hscroll start-window))
|
||
;; Don't run the up-event handler if the window
|
||
;; start changed in a redisplay after the
|
||
;; mouse-set-point for the down-mouse event at
|
||
;; the beginning of this function. When the
|
||
;; window start has changed, the up-mouse event
|
||
;; contains a different position due to the new
|
||
;; window contents, and point is set again.
|
||
(or end-point
|
||
(= (window-start start-window)
|
||
start-window-start)))
|
||
(when (and on-link
|
||
(= start-point (point))
|
||
(mouse--remap-link-click-p start-event event))
|
||
;; If we rebind to mouse-2, reselect previous selected
|
||
;; window, so that the mouse-2 event runs in the same
|
||
;; situation as if user had clicked it directly. Fixes
|
||
;; the bug reported by juri@jurta.org on 2005-12-27.
|
||
(if (or (vectorp on-link) (stringp on-link))
|
||
(setq event (aref on-link 0))
|
||
(select-window original-window)
|
||
(setcar event 'mouse-2)
|
||
;; If this mouse click has never been done by the
|
||
;; user, it doesn't have the necessary property to be
|
||
;; interpreted correctly.
|
||
(put 'mouse-2 'event-kind 'mouse-click)))
|
||
(push event unread-command-events)))))))
|
||
|
||
(defun mouse--drag-set-mark-and-point (start click click-count)
|
||
(let* ((range (mouse-start-end start click click-count))
|
||
(beg (nth 0 range))
|
||
(end (nth 1 range)))
|
||
(cond ((eq (mark) beg)
|
||
(goto-char end))
|
||
((eq (mark) end)
|
||
(goto-char beg))
|
||
((< click (mark))
|
||
(set-mark end)
|
||
(goto-char beg))
|
||
(t
|
||
(set-mark beg)
|
||
(goto-char end)))))
|
||
|
||
(defun mouse--remap-link-click-p (start-event end-event)
|
||
(or (and (eq mouse-1-click-follows-link 'double)
|
||
(= (event-click-count start-event) 2))
|
||
(and
|
||
(not (eq mouse-1-click-follows-link 'double))
|
||
(= (event-click-count start-event) 1)
|
||
(= (event-click-count end-event) 1)
|
||
(or (not (integerp mouse-1-click-follows-link))
|
||
(let ((t0 (posn-timestamp (event-start start-event)))
|
||
(t1 (posn-timestamp (event-end end-event))))
|
||
(and (integerp t0) (integerp t1)
|
||
(if (> mouse-1-click-follows-link 0)
|
||
(<= (- t1 t0) mouse-1-click-follows-link)
|
||
(< (- t0 t1) mouse-1-click-follows-link))))))))
|
||
|
||
|
||
;; Commands to handle xterm-style multiple clicks.
|
||
(defun mouse-skip-word (dir)
|
||
"Skip over word, over whitespace, or over identical punctuation.
|
||
If DIR is positive skip forward; if negative, skip backward."
|
||
(let* ((char (following-char))
|
||
(syntax (char-to-string (char-syntax char))))
|
||
(cond ((string= syntax "w")
|
||
;; Here, we can't use skip-syntax-forward/backward because
|
||
;; they don't pay attention to word-separating-categories,
|
||
;; and thus they will skip over a true word boundary. So,
|
||
;; we simulate the original behavior by using forward-word.
|
||
(if (< dir 0)
|
||
(if (not (looking-at "\\<"))
|
||
(forward-word -1))
|
||
(if (or (looking-at "\\<") (not (looking-at "\\>")))
|
||
(forward-word 1))))
|
||
((string= syntax " ")
|
||
(if (< dir 0)
|
||
(skip-syntax-backward syntax)
|
||
(skip-syntax-forward syntax)))
|
||
((string= syntax "_")
|
||
(if (< dir 0)
|
||
(skip-syntax-backward "w_")
|
||
(skip-syntax-forward "w_")))
|
||
((< dir 0)
|
||
(while (and (not (bobp)) (= (preceding-char) char))
|
||
(forward-char -1)))
|
||
(t
|
||
(while (and (not (eobp)) (= (following-char) char))
|
||
(forward-char 1))))))
|
||
|
||
(defun mouse-start-end (start end mode)
|
||
"Return a list of region bounds based on START and END according to MODE.
|
||
If MODE is 0 then set point to (min START END), mark to (max START END).
|
||
If MODE is 1 then set point to start of word at (min START END),
|
||
mark to end of word at (max START END).
|
||
If MODE is 2 then do the same for lines."
|
||
(if (> start end)
|
||
(let ((temp start))
|
||
(setq start end
|
||
end temp)))
|
||
(setq mode (mod mode 3))
|
||
(cond ((= mode 0)
|
||
(list start end))
|
||
((and (= mode 1)
|
||
(= start end)
|
||
(char-after start)
|
||
(= (char-syntax (char-after start)) ?\())
|
||
(list start
|
||
(save-excursion
|
||
(goto-char start)
|
||
(forward-sexp 1)
|
||
(point))))
|
||
((and (= mode 1)
|
||
(= start end)
|
||
(char-after start)
|
||
(= (char-syntax (char-after start)) ?\)))
|
||
(list (save-excursion
|
||
(goto-char (1+ start))
|
||
(backward-sexp 1)
|
||
(point))
|
||
(1+ start)))
|
||
((and (= mode 1)
|
||
(= start end)
|
||
(char-after start)
|
||
(= (char-syntax (char-after start)) ?\"))
|
||
(let ((open (or (eq start (point-min))
|
||
(save-excursion
|
||
(goto-char (- start 1))
|
||
(looking-at "\\s(\\|\\s \\|\\s>")))))
|
||
(if open
|
||
(list start
|
||
(save-excursion
|
||
(condition-case nil
|
||
(progn
|
||
(goto-char start)
|
||
(forward-sexp 1)
|
||
(point))
|
||
(error end))))
|
||
(list (save-excursion
|
||
(condition-case nil
|
||
(progn
|
||
(goto-char (1+ start))
|
||
(backward-sexp 1)
|
||
(point))
|
||
(error end)))
|
||
(1+ start)))))
|
||
((= mode 1)
|
||
(list (save-excursion
|
||
(goto-char start)
|
||
(mouse-skip-word -1)
|
||
(point))
|
||
(save-excursion
|
||
(goto-char end)
|
||
(mouse-skip-word 1)
|
||
(point))))
|
||
((= mode 2)
|
||
(list (save-excursion
|
||
(goto-char start)
|
||
(line-beginning-position 1))
|
||
(save-excursion
|
||
(goto-char end)
|
||
(forward-line 1)
|
||
(point))))))
|
||
|
||
;; Subroutine: set the mark where CLICK happened,
|
||
;; but don't do anything else.
|
||
(defun mouse-set-mark-fast (click)
|
||
(mouse-minibuffer-check click)
|
||
(let ((posn (event-start click)))
|
||
(select-window (posn-window posn))
|
||
(if (numberp (posn-point posn))
|
||
(push-mark (posn-point posn) t t))))
|
||
|
||
(defun mouse-undouble-last-event (events)
|
||
(let* ((index (1- (length events)))
|
||
(last (nthcdr index events))
|
||
(event (car last))
|
||
(basic (event-basic-type event))
|
||
(old-modifiers (event-modifiers event))
|
||
(modifiers (delq 'double (delq 'triple (copy-sequence old-modifiers))))
|
||
(new
|
||
(if (consp event)
|
||
;; Use reverse, not nreverse, since event-modifiers
|
||
;; does not copy the list it returns.
|
||
(cons (event-convert-list (reverse (cons basic modifiers)))
|
||
(cdr event))
|
||
event)))
|
||
(setcar last new)
|
||
(if (and (not (equal modifiers old-modifiers))
|
||
(key-binding (apply 'vector events)))
|
||
t
|
||
(setcar last event)
|
||
nil)))
|
||
|
||
;; Momentarily show where the mark is, if highlighting doesn't show it.
|
||
|
||
(defun mouse-set-mark (click)
|
||
"Set mark at the position clicked on with the mouse.
|
||
Display cursor at that position for a second.
|
||
This must be bound to a mouse click."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check click)
|
||
(select-window (posn-window (event-start click)))
|
||
;; We don't use save-excursion because that preserves the mark too.
|
||
(let ((point-save (point)))
|
||
(unwind-protect
|
||
(progn (mouse-set-point click)
|
||
(push-mark nil t t)
|
||
(or transient-mark-mode
|
||
(sit-for 1)))
|
||
(goto-char point-save))))
|
||
|
||
(defun mouse-kill (click)
|
||
"Kill the region between point and the mouse click.
|
||
The text is saved in the kill ring, as with \\[kill-region]."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check click)
|
||
(let* ((posn (event-start click))
|
||
(click-posn (posn-point posn)))
|
||
(select-window (posn-window posn))
|
||
(if (numberp click-posn)
|
||
(kill-region (min (point) click-posn)
|
||
(max (point) click-posn)))))
|
||
|
||
(defun mouse-yank-at-click (click arg)
|
||
"Insert the last stretch of killed text at the position clicked on.
|
||
Also move point to one end of the text thus inserted (normally the end),
|
||
and set mark at the beginning.
|
||
Prefix arguments are interpreted as with \\[yank].
|
||
If `mouse-yank-at-point' is non-nil, insert at point
|
||
regardless of where you click."
|
||
(interactive "e\nP")
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
(when select-active-regions
|
||
;; Without this, confusing things happen upon e.g. inserting into
|
||
;; the middle of an active region.
|
||
(deactivate-mark))
|
||
(or mouse-yank-at-point (mouse-set-point click))
|
||
(setq this-command 'yank)
|
||
(setq mouse-selection-click-count 0)
|
||
(yank arg))
|
||
|
||
(defun mouse-yank-primary (click)
|
||
"Insert the primary selection at the position clicked on.
|
||
Move point to the end of the inserted text.
|
||
If `mouse-yank-at-point' is non-nil, insert at point
|
||
regardless of where you click."
|
||
(interactive "e")
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
;; Without this, confusing things happen upon e.g. inserting into
|
||
;; the middle of an active region.
|
||
(when select-active-regions
|
||
(let (select-active-regions)
|
||
(deactivate-mark)))
|
||
(or mouse-yank-at-point (mouse-set-point click))
|
||
(let ((primary
|
||
(cond
|
||
((eq system-type 'windows-nt)
|
||
;; MS-Windows emulates PRIMARY in x-get-selection, but not
|
||
;; in x-get-selection-value (the latter only accesses the
|
||
;; clipboard). So try PRIMARY first, in case they selected
|
||
;; something with the mouse in the current Emacs session.
|
||
(or (x-get-selection 'PRIMARY)
|
||
(x-get-selection-value)))
|
||
((fboundp 'x-get-selection-value) ; MS-DOS and X.
|
||
;; On X, x-get-selection-value supports more formats and
|
||
;; encodings, so use it in preference to x-get-selection.
|
||
(or (x-get-selection-value)
|
||
(x-get-selection 'PRIMARY)))
|
||
;; FIXME: What about xterm-mouse-mode etc.?
|
||
(t
|
||
(x-get-selection 'PRIMARY)))))
|
||
(if primary
|
||
(insert primary)
|
||
(error "No selection is available"))))
|
||
|
||
(defun mouse-kill-ring-save (click)
|
||
"Copy the region between point and the mouse click in the kill ring.
|
||
This does not delete the region; it acts like \\[kill-ring-save]."
|
||
(interactive "e")
|
||
(mouse-set-mark-fast click)
|
||
(let (this-command last-command)
|
||
(kill-ring-save (point) (mark t))))
|
||
|
||
;; This function used to delete the text between point and the mouse
|
||
;; whenever it was equal to the front of the kill ring, but some
|
||
;; people found that confusing.
|
||
|
||
;; The position of the last invocation of `mouse-save-then-kill'.
|
||
(defvar mouse-save-then-kill-posn nil)
|
||
|
||
(defun mouse-save-then-kill-delete-region (beg end)
|
||
;; We must make our own undo boundaries
|
||
;; because they happen automatically only for the current buffer.
|
||
(undo-boundary)
|
||
(if (or (= beg end) (eq buffer-undo-list t))
|
||
;; If we have no undo list in this buffer,
|
||
;; just delete.
|
||
(delete-region beg end)
|
||
;; Delete, but make the undo-list entry share with the kill ring.
|
||
;; First, delete just one char, so in case buffer is being modified
|
||
;; for the first time, the undo list records that fact.
|
||
(let (before-change-functions after-change-functions)
|
||
(delete-region beg
|
||
(+ beg (if (> end beg) 1 -1))))
|
||
(let ((buffer-undo-list buffer-undo-list))
|
||
;; Undo that deletion--but don't change the undo list!
|
||
(let (before-change-functions after-change-functions)
|
||
(primitive-undo 1 buffer-undo-list))
|
||
;; Now delete the rest of the specified region,
|
||
;; but don't record it.
|
||
(setq buffer-undo-list t)
|
||
(if (/= (length (car kill-ring)) (- (max end beg) (min end beg)))
|
||
(error "Lossage in mouse-save-then-kill-delete-region"))
|
||
(delete-region beg end))
|
||
(let ((tail buffer-undo-list))
|
||
;; Search back in buffer-undo-list for the string
|
||
;; that came from deleting one character.
|
||
(while (and tail (not (stringp (car (car tail)))))
|
||
(setq tail (cdr tail)))
|
||
;; Replace it with an entry for the entire deleted text.
|
||
(and tail
|
||
(setcar tail (cons (car kill-ring) (min beg end))))))
|
||
(undo-boundary))
|
||
|
||
(defun mouse-save-then-kill (click)
|
||
"Set the region according to CLICK; the second time, kill it.
|
||
CLICK should be a mouse click event.
|
||
|
||
If the region is inactive, activate it temporarily. Set mark at
|
||
the original point, and move point to the position of CLICK.
|
||
|
||
If the region is already active, adjust it. Normally, do this by
|
||
moving point or mark, whichever is closer, to CLICK. But if you
|
||
have selected whole words or lines, move point or mark to the
|
||
word or line boundary closest to CLICK instead.
|
||
|
||
If `mouse-drag-copy-region' is non-nil, this command also saves the
|
||
new region to the kill ring (replacing the previous kill if the
|
||
previous region was just saved to the kill ring).
|
||
|
||
If this command is called a second consecutive time with the same
|
||
CLICK position, kill the region (or delete it
|
||
if `mouse-drag-copy-region' is non-nil)"
|
||
(interactive "e")
|
||
(mouse-minibuffer-check click)
|
||
(let* ((posn (event-start click))
|
||
(click-pt (posn-point posn))
|
||
(window (posn-window posn))
|
||
(buf (window-buffer window))
|
||
;; Don't let a subsequent kill command append to this one.
|
||
(this-command this-command)
|
||
;; Check if the user has multi-clicked to select words/lines.
|
||
(click-count
|
||
(if (and (eq mouse-selection-click-count-buffer buf)
|
||
(with-current-buffer buf (mark t)))
|
||
mouse-selection-click-count
|
||
0)))
|
||
(cond
|
||
((not (numberp click-pt)) nil)
|
||
;; If the user clicked without moving point, kill the region.
|
||
;; This also resets `mouse-selection-click-count'.
|
||
((and (eq last-command 'mouse-save-then-kill)
|
||
(eq click-pt mouse-save-then-kill-posn)
|
||
(eq window (selected-window)))
|
||
(if mouse-drag-copy-region
|
||
;; Region already saved in the previous click;
|
||
;; don't make a duplicate entry, just delete.
|
||
(delete-region (mark t) (point))
|
||
(kill-region (mark t) (point)))
|
||
(setq mouse-selection-click-count 0)
|
||
(setq mouse-save-then-kill-posn nil))
|
||
|
||
;; Otherwise, if there is a suitable region, adjust it by moving
|
||
;; one end (whichever is closer) to CLICK-PT.
|
||
((or (with-current-buffer buf (region-active-p))
|
||
(and (eq window (selected-window))
|
||
(mark t)
|
||
(or (and (eq last-command 'mouse-save-then-kill)
|
||
mouse-save-then-kill-posn)
|
||
(and (memq last-command '(mouse-drag-region
|
||
mouse-set-region))
|
||
(or mark-even-if-inactive
|
||
(not transient-mark-mode))))))
|
||
(select-window window)
|
||
(let* ((range (mouse-start-end click-pt click-pt click-count)))
|
||
(if (< (abs (- click-pt (mark t)))
|
||
(abs (- click-pt (point))))
|
||
(set-mark (car range))
|
||
(goto-char (nth 1 range)))
|
||
(setq deactivate-mark nil)
|
||
(mouse-set-region-1)
|
||
(when mouse-drag-copy-region
|
||
;; Region already copied to kill-ring once, so replace.
|
||
(kill-new (filter-buffer-substring (mark t) (point)) t))
|
||
;; Arrange for a repeated mouse-3 to kill the region.
|
||
(setq mouse-save-then-kill-posn click-pt)))
|
||
|
||
;; Otherwise, set the mark where point is and move to CLICK-PT.
|
||
(t
|
||
(select-window window)
|
||
(mouse-set-mark-fast click)
|
||
(let ((before-scroll (with-current-buffer buf point-before-scroll)))
|
||
(if before-scroll (goto-char before-scroll)))
|
||
(exchange-point-and-mark)
|
||
(mouse-set-region-1)
|
||
(when mouse-drag-copy-region
|
||
(kill-new (filter-buffer-substring (mark t) (point))))
|
||
(setq mouse-save-then-kill-posn click-pt)))))
|
||
|
||
|
||
(global-set-key [M-mouse-1] 'mouse-start-secondary)
|
||
(global-set-key [M-drag-mouse-1] 'mouse-set-secondary)
|
||
(global-set-key [M-down-mouse-1] 'mouse-drag-secondary)
|
||
(global-set-key [M-mouse-3] 'mouse-secondary-save-then-kill)
|
||
(global-set-key [M-mouse-2] 'mouse-yank-secondary)
|
||
|
||
(defconst mouse-secondary-overlay
|
||
(let ((ol (make-overlay (point-min) (point-min))))
|
||
(delete-overlay ol)
|
||
(overlay-put ol 'face 'secondary-selection)
|
||
ol)
|
||
"An overlay which records the current secondary selection.
|
||
It is deleted when there is no secondary selection.")
|
||
|
||
(defvar mouse-secondary-click-count 0)
|
||
|
||
;; A marker which records the specified first end for a secondary selection.
|
||
;; May be nil.
|
||
(defvar mouse-secondary-start nil)
|
||
|
||
(defun mouse-start-secondary (click)
|
||
"Set one end of the secondary selection to the position clicked on.
|
||
Use \\[mouse-secondary-save-then-kill] to set the other end
|
||
and complete the secondary selection."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check click)
|
||
(let ((posn (event-start click)))
|
||
(with-current-buffer (window-buffer (posn-window posn))
|
||
;; Cancel any preexisting secondary selection.
|
||
(delete-overlay mouse-secondary-overlay)
|
||
(if (numberp (posn-point posn))
|
||
(progn
|
||
(or mouse-secondary-start
|
||
(setq mouse-secondary-start (make-marker)))
|
||
(move-marker mouse-secondary-start (posn-point posn)))))))
|
||
|
||
(defun mouse-set-secondary (click)
|
||
"Set the secondary selection to the text that the mouse is dragged over.
|
||
This must be bound to a mouse drag event."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check click)
|
||
(let ((posn (event-start click))
|
||
beg
|
||
(end (event-end click)))
|
||
(with-current-buffer (window-buffer (posn-window posn))
|
||
(if (numberp (posn-point posn))
|
||
(setq beg (posn-point posn)))
|
||
(move-overlay mouse-secondary-overlay beg (posn-point end))
|
||
(x-set-selection
|
||
'SECONDARY
|
||
(buffer-substring (overlay-start mouse-secondary-overlay)
|
||
(overlay-end mouse-secondary-overlay))))))
|
||
|
||
(defun mouse-drag-secondary (start-event)
|
||
"Set the secondary selection to the text that the mouse is dragged over.
|
||
Highlight the drag area as you move the mouse.
|
||
This must be bound to a button-down mouse event.
|
||
The function returns a non-nil value if it creates a secondary selection."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check start-event)
|
||
(let* ((echo-keystrokes 0)
|
||
(start-posn (event-start start-event))
|
||
(start-point (posn-point start-posn))
|
||
(start-window (posn-window start-posn))
|
||
(bounds (window-edges start-window))
|
||
(top (nth 1 bounds))
|
||
(bottom (if (window-minibuffer-p start-window)
|
||
(nth 3 bounds)
|
||
;; Don't count the mode line.
|
||
(1- (nth 3 bounds))))
|
||
(click-count (1- (event-click-count start-event))))
|
||
(with-current-buffer (window-buffer start-window)
|
||
(setq mouse-secondary-click-count click-count)
|
||
(if (> (mod click-count 3) 0)
|
||
;; Double or triple press: make an initial selection
|
||
;; of one word or line.
|
||
(let ((range (mouse-start-end start-point start-point click-count)))
|
||
(set-marker mouse-secondary-start nil)
|
||
(move-overlay mouse-secondary-overlay (car range) (nth 1 range)
|
||
(window-buffer start-window)))
|
||
;; Single-press: cancel any preexisting secondary selection.
|
||
(or mouse-secondary-start
|
||
(setq mouse-secondary-start (make-marker)))
|
||
(set-marker mouse-secondary-start start-point)
|
||
(delete-overlay mouse-secondary-overlay))
|
||
(let (event end end-point)
|
||
(track-mouse
|
||
(while (progn
|
||
(setq event (read-event))
|
||
(or (mouse-movement-p event)
|
||
(memq (car-safe event) '(switch-frame select-window))))
|
||
|
||
(if (memq (car-safe event) '(switch-frame select-window))
|
||
nil
|
||
(setq end (event-end event)
|
||
end-point (posn-point end))
|
||
(cond
|
||
;; Are we moving within the original window?
|
||
((and (eq (posn-window end) start-window)
|
||
(integer-or-marker-p end-point))
|
||
(let ((range (mouse-start-end start-point end-point
|
||
click-count)))
|
||
(if (or (/= start-point end-point)
|
||
(null (marker-position mouse-secondary-start)))
|
||
(progn
|
||
(set-marker mouse-secondary-start nil)
|
||
(move-overlay mouse-secondary-overlay
|
||
(car range) (nth 1 range))))))
|
||
(t
|
||
(let ((mouse-row (cdr (cdr (mouse-position)))))
|
||
(cond
|
||
((null mouse-row))
|
||
((< mouse-row top)
|
||
(mouse-scroll-subr start-window (- mouse-row top)
|
||
mouse-secondary-overlay start-point))
|
||
((>= mouse-row bottom)
|
||
(mouse-scroll-subr start-window (1+ (- mouse-row bottom))
|
||
mouse-secondary-overlay start-point)))))))))
|
||
|
||
(if (consp event)
|
||
(if (marker-position mouse-secondary-start)
|
||
(save-window-excursion
|
||
(delete-overlay mouse-secondary-overlay)
|
||
(x-set-selection 'SECONDARY nil)
|
||
(select-window start-window)
|
||
(save-excursion
|
||
(goto-char mouse-secondary-start)
|
||
(sit-for 1)
|
||
nil))
|
||
(x-set-selection
|
||
'SECONDARY
|
||
(buffer-substring (overlay-start mouse-secondary-overlay)
|
||
(overlay-end mouse-secondary-overlay)))))))))
|
||
|
||
(defun mouse-yank-secondary (click)
|
||
"Insert the secondary selection at the position clicked on.
|
||
Move point to the end of the inserted text.
|
||
If `mouse-yank-at-point' is non-nil, insert at point
|
||
regardless of where you click."
|
||
(interactive "e")
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
(or mouse-yank-at-point (mouse-set-point click))
|
||
(let ((secondary (x-get-selection 'SECONDARY)))
|
||
(if secondary
|
||
(insert secondary)
|
||
(error "No secondary selection"))))
|
||
|
||
(defun mouse-kill-secondary ()
|
||
"Kill the text in the secondary selection.
|
||
This is intended more as a keyboard command than as a mouse command
|
||
but it can work as either one.
|
||
|
||
The current buffer (in case of keyboard use), or the buffer clicked on,
|
||
must be the one that the secondary selection is in. This requirement
|
||
is to prevent accidents."
|
||
(interactive)
|
||
(let* ((keys (this-command-keys))
|
||
(click (elt keys (1- (length keys)))))
|
||
(or (eq (overlay-buffer mouse-secondary-overlay)
|
||
(if (listp click)
|
||
(window-buffer (posn-window (event-start click)))
|
||
(current-buffer)))
|
||
(error "Select or click on the buffer where the secondary selection is")))
|
||
(let (this-command)
|
||
(with-current-buffer (overlay-buffer mouse-secondary-overlay)
|
||
(kill-region (overlay-start mouse-secondary-overlay)
|
||
(overlay-end mouse-secondary-overlay))))
|
||
(delete-overlay mouse-secondary-overlay))
|
||
|
||
(defun mouse-secondary-save-then-kill (click)
|
||
"Set the secondary selection and save it to the kill ring.
|
||
The second time, kill it. CLICK should be a mouse click event.
|
||
|
||
If you have not called `mouse-start-secondary' in the clicked
|
||
buffer, activate the secondary selection and set it between point
|
||
and the click position CLICK.
|
||
|
||
Otherwise, adjust the bounds of the secondary selection.
|
||
Normally, do this by moving its beginning or end, whichever is
|
||
closer, to CLICK. But if you have selected whole words or lines,
|
||
adjust to the word or line boundary closest to CLICK instead.
|
||
|
||
If this command is called a second consecutive time with the same
|
||
CLICK position, kill the secondary selection."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check click)
|
||
(let* ((posn (event-start click))
|
||
(click-pt (posn-point posn))
|
||
(window (posn-window posn))
|
||
(buf (window-buffer window))
|
||
;; Don't let a subsequent kill command append to this one.
|
||
(this-command this-command)
|
||
;; Check if the user has multi-clicked to select words/lines.
|
||
(click-count
|
||
(if (eq (overlay-buffer mouse-secondary-overlay) buf)
|
||
mouse-secondary-click-count
|
||
0))
|
||
(beg (overlay-start mouse-secondary-overlay))
|
||
(end (overlay-end mouse-secondary-overlay)))
|
||
|
||
(cond
|
||
((not (numberp click-pt)) nil)
|
||
|
||
;; If the secondary selection is not active in BUF, activate it.
|
||
((not (eq buf (or (overlay-buffer mouse-secondary-overlay)
|
||
(if mouse-secondary-start
|
||
(marker-buffer mouse-secondary-start)))))
|
||
(select-window window)
|
||
(setq mouse-secondary-start (make-marker))
|
||
(move-marker mouse-secondary-start (point))
|
||
(move-overlay mouse-secondary-overlay (point) click-pt buf)
|
||
(kill-ring-save (point) click-pt))
|
||
|
||
;; If the user clicked without moving point, delete the secondary
|
||
;; selection. This also resets `mouse-secondary-click-count'.
|
||
((and (eq last-command 'mouse-secondary-save-then-kill)
|
||
(eq click-pt mouse-save-then-kill-posn)
|
||
(eq window (selected-window)))
|
||
(mouse-save-then-kill-delete-region beg end)
|
||
(delete-overlay mouse-secondary-overlay)
|
||
(setq mouse-secondary-click-count 0)
|
||
(setq mouse-save-then-kill-posn nil))
|
||
|
||
;; Otherwise, if there is a suitable secondary selection overlay,
|
||
;; adjust it by moving one end (whichever is closer) to CLICK-PT.
|
||
((and beg (eq buf (overlay-buffer mouse-secondary-overlay)))
|
||
(let* ((range (mouse-start-end click-pt click-pt click-count)))
|
||
(if (< (abs (- click-pt beg))
|
||
(abs (- click-pt end)))
|
||
(move-overlay mouse-secondary-overlay (car range) end)
|
||
(move-overlay mouse-secondary-overlay beg (nth 1 range))))
|
||
(setq deactivate-mark nil)
|
||
(if (eq last-command 'mouse-secondary-save-then-kill)
|
||
;; If the front of the kill ring comes from an immediately
|
||
;; previous use of this command, replace the entry.
|
||
(kill-new
|
||
(buffer-substring (overlay-start mouse-secondary-overlay)
|
||
(overlay-end mouse-secondary-overlay))
|
||
t)
|
||
(let (deactivate-mark)
|
||
(copy-region-as-kill (overlay-start mouse-secondary-overlay)
|
||
(overlay-end mouse-secondary-overlay))))
|
||
(setq mouse-save-then-kill-posn click-pt))
|
||
|
||
;; Otherwise, set the secondary selection overlay.
|
||
(t
|
||
(select-window window)
|
||
(if mouse-secondary-start
|
||
;; All we have is one end of a selection, so put the other
|
||
;; end here.
|
||
(let ((start (+ 0 mouse-secondary-start)))
|
||
(kill-ring-save start click-pt)
|
||
(move-overlay mouse-secondary-overlay start click-pt)))
|
||
(setq mouse-save-then-kill-posn click-pt))))
|
||
|
||
;; Finally, set the window system's secondary selection.
|
||
(let (str)
|
||
(and (overlay-buffer mouse-secondary-overlay)
|
||
(setq str (buffer-substring (overlay-start mouse-secondary-overlay)
|
||
(overlay-end mouse-secondary-overlay)))
|
||
(> (length str) 0)
|
||
(x-set-selection 'SECONDARY str))))
|
||
|
||
|
||
(defcustom mouse-buffer-menu-maxlen 20
|
||
"Number of buffers in one pane (submenu) of the buffer menu.
|
||
If we have lots of buffers, divide them into groups of
|
||
`mouse-buffer-menu-maxlen' and make a pane (or submenu) for each one."
|
||
:type 'integer
|
||
:group 'mouse)
|
||
|
||
(defcustom mouse-buffer-menu-mode-mult 4
|
||
"Group the buffers by the major mode groups on \\[mouse-buffer-menu]?
|
||
This number which determines (in a hairy way) whether \\[mouse-buffer-menu]
|
||
will split the buffer menu by the major modes (see
|
||
`mouse-buffer-menu-mode-groups') or just by menu length.
|
||
Set to 1 (or even 0!) if you want to group by major mode always, and to
|
||
a large number if you prefer a mixed multitude. The default is 4."
|
||
:type 'integer
|
||
:group 'mouse
|
||
:version "20.3")
|
||
|
||
(defvar mouse-buffer-menu-mode-groups
|
||
(mapcar (lambda (arg) (cons (purecopy (car arg)) (purecopy (cdr arg))))
|
||
'(("Info\\|Help\\|Apropos\\|Man" . "Help")
|
||
("\\bVM\\b\\|\\bMH\\b\\|Message\\|Mail\\|Group\\|Score\\|Summary\\|Article"
|
||
. "Mail/News")
|
||
("\\<C\\>" . "C")
|
||
("ObjC" . "C")
|
||
("Text" . "Text")
|
||
("Outline" . "Text")
|
||
("\\(HT\\|SG\\|X\\|XHT\\)ML" . "SGML")
|
||
("log\\|diff\\|vc\\|cvs\\|Annotate" . "Version Control") ; "Change Management"?
|
||
("Threads\\|Memory\\|Disassembly\\|Breakpoints\\|Frames\\|Locals\\|Registers\\|Inferior I/O\\|Debugger"
|
||
. "GDB")
|
||
("Lisp" . "Lisp")))
|
||
"How to group various major modes together in \\[mouse-buffer-menu].
|
||
Each element has the form (REGEXP . GROUPNAME).
|
||
If the major mode's name string matches REGEXP, use GROUPNAME instead.")
|
||
|
||
(defun mouse-buffer-menu (event)
|
||
"Pop up a menu of buffers for selection with the mouse.
|
||
This switches buffers in the window that you clicked on,
|
||
and selects that window."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check event)
|
||
(let ((buffers (buffer-list)) alist menu split-by-major-mode sum-of-squares)
|
||
;; Make an alist of elements that look like (MENU-ITEM . BUFFER).
|
||
(dolist (buf buffers)
|
||
;; Divide all buffers into buckets for various major modes.
|
||
;; Each bucket looks like (MODE NAMESTRING BUFFERS...).
|
||
(with-current-buffer buf
|
||
(let* ((adjusted-major-mode major-mode) elt)
|
||
(dolist (group mouse-buffer-menu-mode-groups)
|
||
(when (string-match (car group) (format-mode-line mode-name))
|
||
(setq adjusted-major-mode (cdr group))))
|
||
(setq elt (assoc adjusted-major-mode split-by-major-mode))
|
||
(unless elt
|
||
(setq elt (list adjusted-major-mode
|
||
(if (stringp adjusted-major-mode)
|
||
adjusted-major-mode
|
||
(format-mode-line mode-name nil nil buf)))
|
||
split-by-major-mode (cons elt split-by-major-mode)))
|
||
(or (memq buf (cdr (cdr elt)))
|
||
(setcdr (cdr elt) (cons buf (cdr (cdr elt))))))))
|
||
;; Compute the sum of squares of sizes of the major-mode buckets.
|
||
(let ((tail split-by-major-mode))
|
||
(setq sum-of-squares 0)
|
||
(while tail
|
||
(setq sum-of-squares
|
||
(+ sum-of-squares
|
||
(let ((len (length (cdr (cdr (car tail)))))) (* len len))))
|
||
(setq tail (cdr tail))))
|
||
(if (< (* sum-of-squares mouse-buffer-menu-mode-mult)
|
||
(* (length buffers) (length buffers)))
|
||
;; Subdividing by major modes really helps, so let's do it.
|
||
(let (subdivided-menus (buffers-left (length buffers)))
|
||
;; Sort the list to put the most popular major modes first.
|
||
(setq split-by-major-mode
|
||
(sort split-by-major-mode
|
||
(function (lambda (elt1 elt2)
|
||
(> (length elt1) (length elt2))))))
|
||
;; Make a separate submenu for each major mode
|
||
;; that has more than one buffer,
|
||
;; unless all the remaining buffers are less than 1/10 of them.
|
||
(while (and split-by-major-mode
|
||
(and (> (length (car split-by-major-mode)) 3)
|
||
(> (* buffers-left 10) (length buffers))))
|
||
(let ((this-mode-list (mouse-buffer-menu-alist
|
||
(cdr (cdr (car split-by-major-mode))))))
|
||
(and this-mode-list
|
||
(setq subdivided-menus
|
||
(cons (cons
|
||
(nth 1 (car split-by-major-mode))
|
||
this-mode-list)
|
||
subdivided-menus))))
|
||
(setq buffers-left
|
||
(- buffers-left (length (cdr (car split-by-major-mode)))))
|
||
(setq split-by-major-mode (cdr split-by-major-mode)))
|
||
;; If any major modes are left over,
|
||
;; make a single submenu for them.
|
||
(if split-by-major-mode
|
||
(let ((others-list
|
||
(mouse-buffer-menu-alist
|
||
;; we don't need split-by-major-mode any more,
|
||
;; so we can ditch it with nconc.
|
||
(apply 'nconc (mapcar 'cddr split-by-major-mode)))))
|
||
(and others-list
|
||
(setq subdivided-menus
|
||
(cons (cons "Others" others-list)
|
||
subdivided-menus)))))
|
||
(setq menu (cons "Buffer Menu" (nreverse subdivided-menus))))
|
||
(progn
|
||
(setq alist (mouse-buffer-menu-alist buffers))
|
||
(setq menu (cons "Buffer Menu"
|
||
(mouse-buffer-menu-split "Select Buffer" alist)))))
|
||
(let ((buf (x-popup-menu event menu))
|
||
(window (posn-window (event-start event))))
|
||
(when buf
|
||
(select-window
|
||
(if (framep window) (frame-selected-window window)
|
||
window))
|
||
(switch-to-buffer buf)))))
|
||
|
||
(defun mouse-buffer-menu-alist (buffers)
|
||
(let (tail
|
||
(maxlen 0)
|
||
head)
|
||
(setq buffers
|
||
(sort buffers
|
||
(function (lambda (elt1 elt2)
|
||
(string< (buffer-name elt1) (buffer-name elt2))))))
|
||
(setq tail buffers)
|
||
(while tail
|
||
(or (eq ?\s (aref (buffer-name (car tail)) 0))
|
||
(setq maxlen
|
||
(max maxlen
|
||
(length (buffer-name (car tail))))))
|
||
(setq tail (cdr tail)))
|
||
(setq tail buffers)
|
||
(while tail
|
||
(let ((elt (car tail)))
|
||
(if (/= (aref (buffer-name elt) 0) ?\s)
|
||
(setq head
|
||
(cons
|
||
(cons
|
||
(format
|
||
(format "%%-%ds %%s%%s %%s" maxlen)
|
||
(buffer-name elt)
|
||
(if (buffer-modified-p elt) "*" " ")
|
||
(with-current-buffer elt
|
||
(if buffer-read-only "%" " "))
|
||
(or (buffer-file-name elt)
|
||
(with-current-buffer elt
|
||
(if list-buffers-directory
|
||
(expand-file-name
|
||
list-buffers-directory)))
|
||
""))
|
||
elt)
|
||
head))))
|
||
(setq tail (cdr tail)))
|
||
;; Compensate for the reversal that the above loop does.
|
||
(nreverse head)))
|
||
|
||
(defun mouse-buffer-menu-split (title alist)
|
||
;; If we have lots of buffers, divide them into groups of 20
|
||
;; and make a pane (or submenu) for each one.
|
||
(if (> (length alist) (/ (* mouse-buffer-menu-maxlen 3) 2))
|
||
(let ((alist alist) sublists next
|
||
(i 1))
|
||
(while alist
|
||
;; Pull off the next mouse-buffer-menu-maxlen buffers
|
||
;; and make them the next element of sublist.
|
||
(setq next (nthcdr mouse-buffer-menu-maxlen alist))
|
||
(if next
|
||
(setcdr (nthcdr (1- mouse-buffer-menu-maxlen) alist)
|
||
nil))
|
||
(setq sublists (cons (cons (format "Buffers %d" i) alist)
|
||
sublists))
|
||
(setq i (1+ i))
|
||
(setq alist next))
|
||
(nreverse sublists))
|
||
;; Few buffers--put them all in one pane.
|
||
(list (cons title alist))))
|
||
|
||
(define-obsolete-function-alias
|
||
'mouse-choose-completion 'choose-completion "23.2")
|
||
|
||
;; Font selection.
|
||
|
||
(defun font-menu-add-default ()
|
||
(let* ((default (cdr (assq 'font (frame-parameters (selected-frame)))))
|
||
(font-alist x-fixed-font-alist)
|
||
(elt (or (assoc "Misc" font-alist) (nth 1 font-alist))))
|
||
(if (assoc "Default" elt)
|
||
(delete (assoc "Default" elt) elt))
|
||
(setcdr elt
|
||
(cons (list "Default" default)
|
||
(cdr elt)))))
|
||
|
||
(defvar x-fixed-font-alist
|
||
(list
|
||
(purecopy "Font Menu")
|
||
(cons
|
||
(purecopy "Misc")
|
||
(mapcar
|
||
(lambda (arg) (cons (purecopy (car arg)) (purecopy (cdr arg))))
|
||
;; For these, we specify the pixel height and width.
|
||
'(("fixed" "fixed")
|
||
("6x10" "-misc-fixed-medium-r-normal--10-*-*-*-c-60-iso8859-1" "6x10")
|
||
("6x12"
|
||
"-misc-fixed-medium-r-semicondensed--12-*-*-*-c-60-iso8859-1" "6x12")
|
||
("6x13"
|
||
"-misc-fixed-medium-r-semicondensed--13-*-*-*-c-60-iso8859-1" "6x13")
|
||
("7x13" "-misc-fixed-medium-r-normal--13-*-*-*-c-70-iso8859-1" "7x13")
|
||
("7x14" "-misc-fixed-medium-r-normal--14-*-*-*-c-70-iso8859-1" "7x14")
|
||
("8x13" "-misc-fixed-medium-r-normal--13-*-*-*-c-80-iso8859-1" "8x13")
|
||
("9x15" "-misc-fixed-medium-r-normal--15-*-*-*-c-90-iso8859-1" "9x15")
|
||
("10x20" "-misc-fixed-medium-r-normal--20-*-*-*-c-100-iso8859-1" "10x20")
|
||
("11x18" "-misc-fixed-medium-r-normal--18-*-*-*-c-110-iso8859-1" "11x18")
|
||
("12x24" "-misc-fixed-medium-r-normal--24-*-*-*-c-120-iso8859-1" "12x24")
|
||
("")
|
||
("clean 5x8"
|
||
"-schumacher-clean-medium-r-normal--8-*-*-*-c-50-iso8859-1")
|
||
("clean 6x8"
|
||
"-schumacher-clean-medium-r-normal--8-*-*-*-c-60-iso8859-1")
|
||
("clean 8x8"
|
||
"-schumacher-clean-medium-r-normal--8-*-*-*-c-80-iso8859-1")
|
||
("clean 8x10"
|
||
"-schumacher-clean-medium-r-normal--10-*-*-*-c-80-iso8859-1")
|
||
("clean 8x14"
|
||
"-schumacher-clean-medium-r-normal--14-*-*-*-c-80-iso8859-1")
|
||
("clean 8x16"
|
||
"-schumacher-clean-medium-r-normal--16-*-*-*-c-80-iso8859-1")
|
||
("")
|
||
("sony 8x16" "-sony-fixed-medium-r-normal--16-*-*-*-c-80-iso8859-1")
|
||
;; We don't seem to have these; who knows what they are.
|
||
;; ("fg-18" "fg-18")
|
||
;; ("fg-25" "fg-25")
|
||
("lucidasanstypewriter-12" "-b&h-lucidatypewriter-medium-r-normal-sans-*-120-*-*-*-*-iso8859-1")
|
||
("lucidasanstypewriter-bold-14" "-b&h-lucidatypewriter-bold-r-normal-sans-*-140-*-*-*-*-iso8859-1")
|
||
("lucidasanstypewriter-bold-24"
|
||
"-b&h-lucidatypewriter-bold-r-normal-sans-*-240-*-*-*-*-iso8859-1")
|
||
;; ("lucidatypewriter-bold-r-24" "-b&h-lucidatypewriter-bold-r-normal-sans-24-240-75-75-m-140-iso8859-1")
|
||
;; ("fixed-medium-20" "-misc-fixed-medium-*-*-*-20-*-*-*-*-*-*-*")
|
||
)))
|
||
|
||
(cons
|
||
(purecopy "Courier")
|
||
(mapcar
|
||
(lambda (arg) (cons (purecopy (car arg)) (purecopy (cdr arg))))
|
||
;; For these, we specify the point height.
|
||
'(("8" "-adobe-courier-medium-r-normal--*-80-*-*-m-*-iso8859-1")
|
||
("10" "-adobe-courier-medium-r-normal--*-100-*-*-m-*-iso8859-1")
|
||
("12" "-adobe-courier-medium-r-normal--*-120-*-*-m-*-iso8859-1")
|
||
("14" "-adobe-courier-medium-r-normal--*-140-*-*-m-*-iso8859-1")
|
||
("18" "-adobe-courier-medium-r-normal--*-180-*-*-m-*-iso8859-1")
|
||
("24" "-adobe-courier-medium-r-normal--*-240-*-*-m-*-iso8859-1")
|
||
("8 bold" "-adobe-courier-bold-r-normal--*-80-*-*-m-*-iso8859-1")
|
||
("10 bold" "-adobe-courier-bold-r-normal--*-100-*-*-m-*-iso8859-1")
|
||
("12 bold" "-adobe-courier-bold-r-normal--*-120-*-*-m-*-iso8859-1")
|
||
("14 bold" "-adobe-courier-bold-r-normal--*-140-*-*-m-*-iso8859-1")
|
||
("18 bold" "-adobe-courier-bold-r-normal--*-180-*-*-m-*-iso8859-1")
|
||
("24 bold" "-adobe-courier-bold-r-normal--*-240-*-*-m-*-iso8859-1")
|
||
("8 slant" "-adobe-courier-medium-o-normal--*-80-*-*-m-*-iso8859-1")
|
||
("10 slant" "-adobe-courier-medium-o-normal--*-100-*-*-m-*-iso8859-1")
|
||
("12 slant" "-adobe-courier-medium-o-normal--*-120-*-*-m-*-iso8859-1")
|
||
("14 slant" "-adobe-courier-medium-o-normal--*-140-*-*-m-*-iso8859-1")
|
||
("18 slant" "-adobe-courier-medium-o-normal--*-180-*-*-m-*-iso8859-1")
|
||
("24 slant" "-adobe-courier-medium-o-normal--*-240-*-*-m-*-iso8859-1")
|
||
("8 bold slant" "-adobe-courier-bold-o-normal--*-80-*-*-m-*-iso8859-1")
|
||
("10 bold slant" "-adobe-courier-bold-o-normal--*-100-*-*-m-*-iso8859-1")
|
||
("12 bold slant" "-adobe-courier-bold-o-normal--*-120-*-*-m-*-iso8859-1")
|
||
("14 bold slant" "-adobe-courier-bold-o-normal--*-140-*-*-m-*-iso8859-1")
|
||
("18 bold slant" "-adobe-courier-bold-o-normal--*-180-*-*-m-*-iso8859-1")
|
||
("24 bold slant" "-adobe-courier-bold-o-normal--*-240-*-*-m-*-iso8859-1")
|
||
))))
|
||
"X fonts suitable for use in Emacs.")
|
||
|
||
(declare-function generate-fontset-menu "fontset" ())
|
||
|
||
(defun mouse-select-font ()
|
||
"Prompt for a font name, using `x-popup-menu', and return it."
|
||
(interactive)
|
||
(unless (display-multi-font-p)
|
||
(error "Cannot change fonts on this display"))
|
||
(car
|
||
(x-popup-menu
|
||
(if (listp last-nonmenu-event)
|
||
last-nonmenu-event
|
||
(list '(0 0) (selected-window)))
|
||
(append x-fixed-font-alist
|
||
(list (generate-fontset-menu))))))
|
||
|
||
(declare-function text-scale-mode "face-remap")
|
||
|
||
(defun mouse-set-font (&rest fonts)
|
||
"Set the default font for the selected frame.
|
||
The argument FONTS is a list of font names; the first valid font
|
||
in this list is used.
|
||
|
||
When called interactively, pop up a menu and allow the user to
|
||
choose a font."
|
||
(interactive
|
||
(progn (unless (display-multi-font-p)
|
||
(error "Cannot change fonts on this display"))
|
||
(x-popup-menu
|
||
(if (listp last-nonmenu-event)
|
||
last-nonmenu-event
|
||
(list '(0 0) (selected-window)))
|
||
;; Append list of fontsets currently defined.
|
||
(append x-fixed-font-alist (list (generate-fontset-menu))))))
|
||
(if fonts
|
||
(let (font)
|
||
(while fonts
|
||
(condition-case nil
|
||
(progn
|
||
(set-frame-font (car fonts))
|
||
(setq font (car fonts))
|
||
(setq fonts nil))
|
||
(error
|
||
(setq fonts (cdr fonts)))))
|
||
(if (null font)
|
||
(error "Font not found")))))
|
||
|
||
(defvar mouse-appearance-menu-map nil)
|
||
(declare-function x-select-font "xfns.c" (&optional frame ignored)) ; USE_GTK
|
||
(declare-function buffer-face-mode-invoke "face-remap"
|
||
(face arg &optional interactive))
|
||
(declare-function font-face-attributes "font.c" (font &optional frame))
|
||
|
||
(defun mouse-appearance-menu (event)
|
||
"Show a menu for changing the default face in the current buffer."
|
||
(interactive "@e")
|
||
(require 'face-remap)
|
||
(when (display-multi-font-p)
|
||
(with-selected-window (car (event-start event))
|
||
(if mouse-appearance-menu-map
|
||
nil ; regenerate new fonts
|
||
;; Initialize mouse-appearance-menu-map
|
||
(setq mouse-appearance-menu-map
|
||
(make-sparse-keymap "Change Default Buffer Face"))
|
||
(define-key mouse-appearance-menu-map [face-remap-reset-base]
|
||
'(menu-item "Reset to Default" face-remap-reset-base))
|
||
(define-key mouse-appearance-menu-map [text-scale-decrease]
|
||
'(menu-item "Decrease Buffer Text Size" text-scale-decrease))
|
||
(define-key mouse-appearance-menu-map [text-scale-increase]
|
||
'(menu-item "Increase Buffer Text Size" text-scale-increase))
|
||
;; Font selector
|
||
(if (functionp 'x-select-font)
|
||
(define-key mouse-appearance-menu-map [x-select-font]
|
||
'(menu-item "Change Buffer Font..." x-select-font))
|
||
;; If the select-font is unavailable, construct a menu.
|
||
(let ((font-submenu (make-sparse-keymap "Change Text Font"))
|
||
(font-alist (cdr (append x-fixed-font-alist
|
||
(list (generate-fontset-menu))))))
|
||
(dolist (family font-alist)
|
||
(let* ((submenu-name (car family))
|
||
(submenu-map (make-sparse-keymap submenu-name)))
|
||
(dolist (font (cdr family))
|
||
(let ((font-name (car font))
|
||
font-symbol)
|
||
(if (string= font-name "")
|
||
(define-key submenu-map [space]
|
||
'("--"))
|
||
(setq font-symbol (intern (cadr font)))
|
||
(define-key submenu-map (vector font-symbol)
|
||
(list 'menu-item (car font) font-symbol)))))
|
||
(define-key font-submenu (vector (intern submenu-name))
|
||
(list 'menu-item submenu-name submenu-map))))
|
||
(define-key mouse-appearance-menu-map [font-submenu]
|
||
(list 'menu-item "Change Text Font" font-submenu)))))
|
||
(let ((choice (x-popup-menu event mouse-appearance-menu-map)))
|
||
(setq choice (nth (1- (length choice)) choice))
|
||
(cond ((eq choice 'text-scale-increase)
|
||
(text-scale-increase 1))
|
||
((eq choice 'text-scale-decrease)
|
||
(text-scale-increase -1))
|
||
((eq choice 'face-remap-reset-base)
|
||
(text-scale-mode 0)
|
||
(buffer-face-mode 0))
|
||
(choice
|
||
;; Either choice == 'x-select-font, or choice is a
|
||
;; symbol whose name is a font.
|
||
(buffer-face-mode-invoke (font-face-attributes
|
||
(if (eq choice 'x-select-font)
|
||
(x-select-font)
|
||
(symbol-name choice)))
|
||
t
|
||
(called-interactively-p 'interactive))))))))
|
||
|
||
|
||
;;; Bindings for mouse commands.
|
||
|
||
(define-key global-map [down-mouse-1] 'mouse-drag-region)
|
||
(global-set-key [mouse-1] 'mouse-set-point)
|
||
(global-set-key [drag-mouse-1] 'mouse-set-region)
|
||
|
||
;; These are tested for in mouse-drag-region.
|
||
(global-set-key [double-mouse-1] 'mouse-set-point)
|
||
(global-set-key [triple-mouse-1] 'mouse-set-point)
|
||
|
||
(defun mouse--strip-first-event (_prompt)
|
||
(substring (this-single-command-raw-keys) 1))
|
||
|
||
(define-key function-key-map [left-fringe mouse-1] 'mouse--strip-first-event)
|
||
(define-key function-key-map [right-fringe mouse-1] 'mouse--strip-first-event)
|
||
|
||
(global-set-key [mouse-2] 'mouse-yank-primary)
|
||
;; Allow yanking also when the corresponding cursor is "in the fringe".
|
||
(define-key function-key-map [right-fringe mouse-2] 'mouse--strip-first-event)
|
||
(define-key function-key-map [left-fringe mouse-2] 'mouse--strip-first-event)
|
||
(global-set-key [mouse-3] 'mouse-save-then-kill)
|
||
(define-key function-key-map [right-fringe mouse-3] 'mouse--strip-first-event)
|
||
(define-key function-key-map [left-fringe mouse-3] 'mouse--strip-first-event)
|
||
|
||
;; By binding these to down-going events, we let the user use the up-going
|
||
;; event to make the selection, saving a click.
|
||
(global-set-key [C-down-mouse-1] 'mouse-buffer-menu)
|
||
(if (not (eq system-type 'ms-dos))
|
||
(global-set-key [S-down-mouse-1] 'mouse-appearance-menu))
|
||
;; C-down-mouse-2 is bound in facemenu.el.
|
||
(global-set-key [C-down-mouse-3]
|
||
`(menu-item ,(purecopy "Menu Bar") ignore
|
||
:filter (lambda (_)
|
||
(if (zerop (or (frame-parameter nil 'menu-bar-lines) 0))
|
||
(mouse-menu-bar-map)
|
||
(mouse-menu-major-mode-map)))))
|
||
|
||
;; Binding mouse-1 to mouse-select-window when on mode-, header-, or
|
||
;; vertical-line prevents Emacs from signaling an error when the mouse
|
||
;; button is released after dragging these lines, on non-toolkit
|
||
;; versions.
|
||
(global-set-key [mode-line mouse-1] 'mouse-select-window)
|
||
(global-set-key [mode-line drag-mouse-1] 'mouse-select-window)
|
||
(global-set-key [mode-line down-mouse-1] 'mouse-drag-mode-line)
|
||
(global-set-key [header-line down-mouse-1] 'mouse-drag-header-line)
|
||
(global-set-key [header-line mouse-1] 'mouse-select-window)
|
||
(global-set-key [mode-line mouse-2] 'mouse-delete-other-windows)
|
||
(global-set-key [mode-line mouse-3] 'mouse-delete-window)
|
||
(global-set-key [mode-line C-mouse-2] 'mouse-split-window-horizontally)
|
||
(global-set-key [vertical-scroll-bar C-mouse-2] 'mouse-split-window-vertically)
|
||
(global-set-key [vertical-line C-mouse-2] 'mouse-split-window-vertically)
|
||
(global-set-key [vertical-line down-mouse-1] 'mouse-drag-vertical-line)
|
||
(global-set-key [vertical-line mouse-1] 'mouse-select-window)
|
||
|
||
(provide 'mouse)
|
||
|
||
;;; mouse.el ends here
|