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- ;; Mouse support for X window system.
- ;; Copyright (C) 1985, 1987 Free Software Foundation, Inc.
-
- ;; This file is part of GNU Emacs.
-
- ;; GNU Emacs is free software; you can redistribute it and/or modify
- ;; it under the terms of the GNU General Public License as published by
- ;; the Free Software Foundation; either version 1, or (at your option)
- ;; any later version.
-
- ;; GNU Emacs is distributed in the hope that it will be useful,
- ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
- ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ;; GNU General Public License for more details.
-
- ;; You should have received a copy of the GNU General Public License
- ;; along with GNU Emacs; see the file COPYING. If not, write to
- ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-
- (provide 'x-mouse)
-
- (defconst x-button-right (char-to-string 0))
- (defconst x-button-middle (char-to-string 1))
- (defconst x-button-left (char-to-string 2))
-
- (defconst x-button-right-up (char-to-string 4))
- (defconst x-button-middle-up (char-to-string 5))
- (defconst x-button-left-up (char-to-string 6))
-
- (defconst x-button-s-right (char-to-string 16))
- (defconst x-button-s-middle (char-to-string 17))
- (defconst x-button-s-left (char-to-string 18))
-
- (defconst x-button-s-right-up (char-to-string 20))
- (defconst x-button-s-middle-up (char-to-string 21))
- (defconst x-button-s-left-up (char-to-string 22))
-
- (defconst x-button-m-right (char-to-string 32))
- (defconst x-button-m-middle (char-to-string 33))
- (defconst x-button-m-left (char-to-string 34))
-
- (defconst x-button-m-right-up (char-to-string 36))
- (defconst x-button-m-middle-up (char-to-string 37))
- (defconst x-button-m-left-up (char-to-string 38))
-
- (defconst x-button-c-right (char-to-string 64))
- (defconst x-button-c-middle (char-to-string 65))
- (defconst x-button-c-left (char-to-string 66))
-
- (defconst x-button-c-right-up (char-to-string 68))
- (defconst x-button-c-middle-up (char-to-string 69))
- (defconst x-button-c-left-up (char-to-string 70))
-
- (defconst x-button-m-s-right (char-to-string 48))
- (defconst x-button-m-s-middle (char-to-string 49))
- (defconst x-button-m-s-left (char-to-string 50))
-
- (defconst x-button-m-s-right-up (char-to-string 52))
- (defconst x-button-m-s-middle-up (char-to-string 53))
- (defconst x-button-m-s-left-up (char-to-string 54))
-
- (defconst x-button-c-s-right (char-to-string 80))
- (defconst x-button-c-s-middle (char-to-string 81))
- (defconst x-button-c-s-left (char-to-string 82))
-
- (defconst x-button-c-s-right-up (char-to-string 84))
- (defconst x-button-c-s-middle-up (char-to-string 85))
- (defconst x-button-c-s-left-up (char-to-string 86))
-
- (defconst x-button-c-m-right (char-to-string 96))
- (defconst x-button-c-m-middle (char-to-string 97))
- (defconst x-button-c-m-left (char-to-string 98))
-
- (defconst x-button-c-m-right-up (char-to-string 100))
- (defconst x-button-c-m-middle-up (char-to-string 101))
- (defconst x-button-c-m-left-up (char-to-string 102))
-
- (defconst x-button-c-m-s-right (char-to-string 112))
- (defconst x-button-c-m-s-middle (char-to-string 113))
- (defconst x-button-c-m-s-left (char-to-string 114))
-
- (defconst x-button-c-m-s-right-up (char-to-string 116))
- (defconst x-button-c-m-s-middle-up (char-to-string 117))
- (defconst x-button-c-m-s-left-up (char-to-string 118))
-
- (defvar x-process-mouse-hook nil
- "Hook to run after each mouse event is processed. Should take two
- arguments; the first being a list (XPOS YPOS) corresponding to character
- offset from top left of screen and the second being a specifier for the
- buttons/keys.
-
- This will normally be set on a per-buffer basis.")
-
- (defun x-flush-mouse-queue ()
- "Process all queued mouse events."
- ;; A mouse event causes a special character sequence to be given
- ;; as keyboard input. That runs this function, which process all
- ;; queued mouse events and returns.
- (interactive)
- (while (> (x-mouse-events) 0)
- (x-proc-mouse-event)
- (and (boundp 'x-process-mouse-hook)
- (symbol-value 'x-process-mouse-hook)
- (funcall x-process-mouse-hook x-mouse-pos x-mouse-item))))
-
- (define-key global-map "\C-c\C-m" 'x-flush-mouse-queue)
- (define-key global-map "\C-x\C-@" 'x-flush-mouse-queue)
-
- (defun x-mouse-select (arg)
- "Select Emacs window the mouse is on."
- (let ((start-w (selected-window))
- (done nil)
- (w (selected-window))
- (rel-coordinate nil))
- (while (and (not done)
- (null (setq rel-coordinate
- (coordinates-in-window-p arg w))))
- (setq w (next-window w))
- (if (eq w start-w)
- (setq done t)))
- (select-window w)
- rel-coordinate))
-
- (defun x-mouse-keep-one-window (arg)
- "Select Emacs window mouse is on, then kill all other Emacs windows."
- (if (x-mouse-select arg)
- (delete-other-windows)))
-
- (defun x-mouse-select-and-split (arg)
- "Select Emacs window mouse is on, then split it vertically in half."
- (if (x-mouse-select arg)
- (split-window-vertically nil)))
-
- (defun x-mouse-set-point (arg)
- "Select Emacs window mouse is on, and move point to mouse position."
- (let* ((relative-coordinate (x-mouse-select arg))
- margin-column
- (rel-x (car relative-coordinate))
- (rel-y (car (cdr relative-coordinate))))
- (if relative-coordinate
- (let ((prompt-width (if (eq (selected-window) (minibuffer-window))
- minibuffer-prompt-width 0)))
- (move-to-window-line rel-y)
- (if (eobp)
- ;; If text ends before the desired line,
- ;; always position at end of that line.
- nil
- (setq margin-column
- (if (or truncate-lines (> (window-hscroll) 0))
- (current-column)
- ;; If we are using line continuation,
- ;; compensate if first character on a continuation line
- ;; does not start precisely at the margin.
- (- (current-column)
- (% (current-column) (1- (window-width))))))
- (move-to-column (+ rel-x (1- (max 1 (window-hscroll)))
- (if (= (point) 1)
- (- prompt-width) 0)
- margin-column)))))))
-
- (defun x-mouse-set-mark (arg)
- "Select Emacs window mouse is on, and set mark at mouse position.
- Display cursor at that position for a second."
- (if (x-mouse-select arg)
- (let ((point-save (point)))
- (unwind-protect
- (progn (x-mouse-set-point arg)
- (push-mark nil t)
- (sit-for 1))
- (goto-char point-save)))))
-
- (defun x-cut-text (arg &optional kill)
- "Copy text between point and mouse position into window system cut buffer.
- Save in Emacs kill ring also."
- (if (coordinates-in-window-p arg (selected-window))
- (save-excursion
- (let ((opoint (point))
- beg end)
- (x-mouse-set-point arg)
- (setq beg (min opoint (point))
- end (max opoint (point)))
- (x-store-cut-buffer (buffer-substring beg end))
- (copy-region-as-kill beg end)
- (if kill (delete-region beg end))))
- (message "Mouse not in selected window")))
-
- (defun x-paste-text (arg)
- "Move point to mouse position and insert window system cut buffer contents."
- (x-mouse-set-point arg)
- (insert (x-get-cut-buffer)))
-
- (defun x-cut-and-wipe-text (arg)
- "Kill text between point and mouse; also copy to window system cut buffer."
- (x-cut-text arg t))
-
- (defun x-mouse-ignore (arg)
- "Don't do anything.")
-
- (defun x-buffer-menu (arg)
- "Pop up a menu of buffers for selection with the mouse."
- (let ((menu
- (list "Buffer Menu"
- (cons "Select Buffer"
- (let ((tail (buffer-list))
- head)
- (while tail
- (let ((elt (car tail)))
- (if (not (string-match "^ "
- (buffer-name elt)))
- (setq head (cons
- (cons
- (format
- "%14s %s"
- (buffer-name elt)
- (or (buffer-file-name elt) ""))
- elt)
- head))))
- (setq tail (cdr tail)))
- (reverse head))))))
- (switch-to-buffer (or (x-popup-menu arg menu) (current-buffer)))))
-
- (defun x-help (arg)
- "Enter a menu-based help system."
- (let ((selection
- (x-popup-menu
- arg
- '("Help" ("Is there a command that..."
- ("Command apropos" . command-apropos)
- ("Apropos" . apropos))
- ("Key Commands <==> Functions"
- ("List all keystroke commands" . describe-bindings)
- ("Describe key briefly" . describe-key-briefly)
- ("Describe key verbose" . describe-key)
- ("Describe Lisp function" . describe-function)
- ("Where is this command" . where-is))
- ("Manual and tutorial"
- ("Info system" . info)
- ("Invoke Emacs tutorial" . help-with-tutorial))
- ("Odds and ends"
- ("Last 100 Keystrokes" . view-lossage)
- ("Describe syntax table" . describe-syntax))
- ("Modes"
- ("Describe current major mode" . describe-mode)
- ("List all keystroke commands" . describe-bindings))
- ("Administrivia"
- ("View Emacs news" . view-emacs-news)
- ("View the GNU Emacs license" . describe-copying)
- ("Describe distribution" . describe-distribution)
- ("Describe (non)warranty" . describe-no-warranty))))))
- (and selection (call-interactively selection))))
-
- ; Prevent beeps on button-up. If the button isn't bound to anything, it
- ; will beep on button-down.
- (define-key mouse-map x-button-right-up 'x-mouse-ignore)
- (define-key mouse-map x-button-middle-up 'x-mouse-ignore)
- (define-key mouse-map x-button-left-up 'x-mouse-ignore)
- (define-key mouse-map x-button-s-right-up 'x-mouse-ignore)
- (define-key mouse-map x-button-s-middle-up 'x-mouse-ignore)
- (define-key mouse-map x-button-s-left-up 'x-mouse-ignore)
- (define-key mouse-map x-button-m-right-up 'x-mouse-ignore)
- (define-key mouse-map x-button-m-middle-up 'x-mouse-ignore)
- (define-key mouse-map x-button-m-left-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-right-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-middle-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-left-up 'x-mouse-ignore)
- (define-key mouse-map x-button-m-s-right-up 'x-mouse-ignore)
- (define-key mouse-map x-button-m-s-middle-up 'x-mouse-ignore)
- (define-key mouse-map x-button-m-s-left-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-s-right-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-s-middle-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-s-left-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-m-right-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-m-middle-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-m-left-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-m-s-right-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-m-s-middle-up 'x-mouse-ignore)
- (define-key mouse-map x-button-c-m-s-left-up 'x-mouse-ignore)
-
- (define-key mouse-map x-button-c-s-left 'x-buffer-menu)
- (define-key mouse-map x-button-c-s-middle 'x-help)
- (define-key mouse-map x-button-c-s-right 'x-mouse-keep-one-window)
- (define-key mouse-map x-button-s-middle 'x-cut-text)
- (define-key mouse-map x-button-s-right 'x-paste-text)
- (define-key mouse-map x-button-c-middle 'x-cut-and-wipe-text)
- (define-key mouse-map x-button-c-right 'x-mouse-select-and-split)
-
- (if (= window-system-version 10)
- (progn
- (define-key mouse-map x-button-right 'x-mouse-select)
- (define-key mouse-map x-button-left 'x-mouse-set-mark)
- (define-key mouse-map x-button-middle 'x-mouse-set-point))
- (define-key mouse-map x-button-right 'x-cut-text)
- (define-key mouse-map x-button-left 'x-mouse-set-point)
- (define-key mouse-map x-button-middle 'x-paste-text))
-