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dd8db560c2
* lisp/mouse.el (mouse-drag-and-drop-region-display-tooltip): Don't time out the created tooltip.
3585 lines
155 KiB
EmacsLisp
3585 lines
155 KiB
EmacsLisp
;;; mouse.el --- window system-independent mouse support -*- lexical-binding: t -*-
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;; Copyright (C) 1993-1995, 1999-2022 Free Software Foundation, Inc.
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;; Maintainer: emacs-devel@gnu.org
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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 <https://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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;;; Code:
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(eval-when-compile (require 'rect))
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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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(defgroup mouse nil
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"Input from the mouse." ;; "Mouse support."
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:group 'environment
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:group 'editing)
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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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This also allows yanking text into an isearch without moving the
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mouse cursor to the echo area."
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:type 'boolean)
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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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This variable applies only to mouse adjustments in Emacs, not
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selecting and adjusting regions in other windows."
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:type 'boolean
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:version "24.1")
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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 specifies 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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(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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(defcustom mouse-drag-and-drop-region-scroll-margin nil
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"If non-nil, the scroll margin inside a window when dragging text.
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If the mouse moves this many lines close to the top or bottom of
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a window while dragging text, then that window will be scrolled
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down and up respectively."
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:type '(choice (const :tag "Don't scroll during mouse movement")
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(integer :tag "This many lines from window top or bottom"))
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:version "29.1")
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(defcustom mouse-drag-mode-line-buffer nil
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"If non-nil, allow dragging files from the mode line.
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When the buffer has an associated file, it can be dragged from
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the buffer name portion of its mode line to other programs.
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This option is only supported on X, Haiku and Nextstep (GNUstep
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or macOS)."
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:type 'boolean
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:version "29.1")
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(defvar mouse--last-down nil)
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(defun mouse--down-1-maybe-follows-link (&optional _prompt)
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(when mouse-1-click-follows-link
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(setq mouse--last-down (cons (car-safe last-input-event) (current-time))))
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nil)
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(defun mouse--click-1-maybe-follows-link (&optional _prompt)
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"Turn `mouse-1' events into `mouse-2' events if follows-link.
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Expects to be bound to `(double-)mouse-1' in `key-translation-map'."
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(and mouse--last-down
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(pcase mouse-1-click-follows-link
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('nil nil)
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('double (eq 'double-mouse-1 (car-safe last-input-event)))
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(_ (and (eq 'mouse-1 (car-safe last-input-event))
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(or (not (numberp mouse-1-click-follows-link))
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(funcall (if (< mouse-1-click-follows-link 0)
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(lambda (a b) (time-less-p b a))
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#'time-less-p)
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(time-since (cdr mouse--last-down))
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(/ (abs mouse-1-click-follows-link) 1000.0))))))
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(eq (car mouse--last-down)
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(event-convert-list
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`(down ,@(event-modifiers last-input-event)
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,(event-basic-type last-input-event))))
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(let* ((action (mouse-on-link-p (event-start last-input-event))))
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(when (and action
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(or mouse-1-click-in-non-selected-windows
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(eq (selected-window)
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(posn-window (event-start last-input-event)))))
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;; Turn the mouse-1 into a mouse-2 to follow links,
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;; but only if ‘mouse-on-link-p’ hasn’t returned a
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;; string or vector (see its docstring).
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(if (arrayp action)
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(vector (aref action 0))
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(let ((newup (if (eq mouse-1-click-follows-link 'double)
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'double-mouse-2 'mouse-2)))
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;; If mouse-2 has never been done by the user, it
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;; doesn't have the necessary property to be
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;; interpreted correctly.
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(unless (get newup 'event-kind)
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(put newup 'event-kind
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(get (car last-input-event) 'event-kind)))
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;; Modify the event in-place, otherwise we can get a prefix
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;; added again, so a click on the header-line turns
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;; into a [header-line header-line mouse-2] :-(.
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;; See fake_prefixed_keys in src/keyboard.c's.
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(setf (car last-input-event) newup)
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(vector last-input-event)))))))
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(define-key key-translation-map [down-mouse-1]
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#'mouse--down-1-maybe-follows-link)
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(define-key key-translation-map [double-down-mouse-1]
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#'mouse--down-1-maybe-follows-link)
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(define-key key-translation-map [mouse-1]
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#'mouse--click-1-maybe-follows-link)
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(define-key key-translation-map [double-mouse-1]
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#'mouse--click-1-maybe-follows-link)
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(defun mouse-double-click-time ()
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"Return a number for `double-click-time'.
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In contrast to using the `double-click-time' variable directly,
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which could be set to nil or t, this function is guaranteed to
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always return a positive integer or zero."
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(let ((ct double-click-time))
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(cond ((eq ct t) 10000) ; arbitrary number useful for sit-for
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((eq ct nil) 0)
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((and (numberp ct) (> ct 0)) ct)
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(t 0))))
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;; Provide a mode-specific menu on a mouse button.
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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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(if (fboundp mm-fun) ; bug#20201
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`(keymap
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,(format "%s - %s" indicator
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(capitalize
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(string-replace
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"-" " " (format "%S" minor-mode))))
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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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(if menu
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(popup-menu menu)
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(message "No menu available")))))
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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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(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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;; Context menus.
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(defcustom context-menu-functions '(context-menu-undo
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context-menu-region
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context-menu-middle-separator
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context-menu-local
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context-menu-minor)
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"List of functions that produce the contents of the context menu.
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Each function receives the menu and the mouse click event as its arguments
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and should return the same menu with changes such as added new menu items."
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:type '(repeat
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(choice (function-item context-menu-undo)
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(function-item context-menu-region)
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(function-item context-menu-middle-separator)
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(function-item context-menu-toolbar)
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(function-item context-menu-global)
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(function-item context-menu-local)
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(function-item context-menu-minor)
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(function-item context-menu-buffers)
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(function-item context-menu-vc)
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(function-item context-menu-ffap)
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(function-item hi-lock-context-menu)
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(function-item occur-context-menu)
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(function-item Man-context-menu)
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(function-item dictionary-context-menu)
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(function :tag "Custom function")))
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:version "28.1")
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(defcustom context-menu-filter-function nil
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"Function that can filter the list produced by `context-menu-functions'."
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:type '(choice (const nil) function)
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:version "28.1")
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(defun context-menu-map (&optional click)
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"Return menu map constructed for context near mouse CLICK.
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The menu is populated by calling functions from `context-menu-functions'.
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Each function receives the menu and the mouse click event
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and returns the same menu after adding own menu items to the composite menu.
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When there is a text property `context-menu-function' at CLICK,
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it overrides all functions from `context-menu-functions'.
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At the end, it's possible to modify the final menu by specifying
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the function `context-menu-filter-function'."
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(let* ((menu (make-sparse-keymap (propertize "Context Menu" 'hide t)))
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(click (or click last-input-event))
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(window (posn-window (event-start click)))
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(fun (mouse-posn-property (event-start click)
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'context-menu-function)))
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(unless (eq (selected-window) window)
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(select-window window))
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(if (functionp fun)
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(setq menu (funcall fun menu click))
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(run-hook-wrapped 'context-menu-functions
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(lambda (fun)
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(setq menu (funcall fun menu click))
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nil)))
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;; Remove duplicate separators as well as ones at the beginning or
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;; end of the menu.
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(let ((l menu) (last-saw-separator t))
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(while (and (consp l)
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(consp (cdr l)))
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(if (equal (cdr-safe (cadr l)) menu-bar-separator)
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(progn
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;; The next item is a separator. Remove it if the last
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;; item we saw was a separator too.
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(if last-saw-separator
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(setcdr l (cddr l))
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;; If we didn't delete this separator, update the last
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;; separator we saw to this one.
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(setq last-saw-separator l
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l (cdr l))))
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;; If the next item is a cons cell, we found a non-separator
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;; item. Don't remove the next separator we see. We
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;; specifically check for cons cells to avoid treating the
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;; overall prompt string as a menu item.
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(when (consp (cadr l))
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(setq last-saw-separator nil))
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(setq l (cdr l))))
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;; If the last item we saw was a separator, remove it.
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(when (consp last-saw-separator)
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(setcdr last-saw-separator (cddr last-saw-separator))))
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(when (functionp context-menu-filter-function)
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(setq menu (funcall context-menu-filter-function menu click)))
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menu))
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(defun context-menu-middle-separator (menu _click)
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"Add separator to the middle of the context menu.
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Some context functions add menu items below the separator."
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(define-key-after menu [middle-separator] menu-bar-separator)
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menu)
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(defun context-menu-toolbar (menu _click)
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"Populate MENU with submenus from the tool bar."
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(define-key-after menu [separator-toolbar] menu-bar-separator)
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(map-keymap (lambda (key binding)
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(when (consp binding)
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(define-key-after menu (vector key)
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(copy-sequence binding))))
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(lookup-key global-map [tool-bar]))
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menu)
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(defun context-menu-global (menu _click)
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"Populate MENU with submenus from the global menu."
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(define-key-after menu [separator-global] menu-bar-separator)
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(map-keymap (lambda (key binding)
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(when (consp binding)
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(define-key-after menu (vector key)
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(copy-sequence binding))))
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(menu-bar-keymap (lookup-key global-map [menu-bar])))
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menu)
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(defun context-menu-local (menu _click)
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"Populate MENU with submenus provided by major mode."
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(define-key-after menu [separator-local] menu-bar-separator)
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(let ((keymap (local-key-binding [menu-bar])))
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(when keymap
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(map-keymap (lambda (key binding)
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(when (consp binding)
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(define-key-after menu (vector key)
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(copy-sequence binding))))
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(menu-bar-keymap keymap))))
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menu)
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(defun context-menu-minor (menu _click)
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"Populate MENU with submenus provided by minor modes."
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(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
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(define-key-after menu [separator-minor] menu-bar-separator)
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(dolist (mode (reverse (minor-mode-key-binding [menu-bar])))
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(when (and (consp mode) (symbol-value (car mode)))
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(map-keymap (lambda (key binding)
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(when (consp binding)
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(define-key-after menu (vector key)
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(copy-sequence binding))))
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(cdr mode))))
|
||
menu)
|
||
|
||
(defun context-menu-buffers (menu _click)
|
||
"Populate MENU with the buffer submenus to buffer switching."
|
||
(run-hooks 'activate-menubar-hook 'menu-bar-update-hook)
|
||
(define-key-after menu [separator-buffers] menu-bar-separator)
|
||
(map-keymap (lambda (key binding)
|
||
(when (consp binding)
|
||
(define-key-after menu (vector key)
|
||
(copy-sequence binding))))
|
||
(mouse-buffer-menu-keymap))
|
||
menu)
|
||
|
||
(defun context-menu-vc (menu _click)
|
||
"Populate MENU with Version Control commands."
|
||
(define-key-after menu [separator-vc] menu-bar-separator)
|
||
(define-key-after menu [vc-menu] vc-menu-entry)
|
||
menu)
|
||
|
||
(defun context-menu-undo (menu _click)
|
||
"Populate MENU with undo commands."
|
||
(define-key-after menu [separator-undo] menu-bar-separator)
|
||
(when (and (not buffer-read-only)
|
||
(not (eq t buffer-undo-list))
|
||
(if (eq last-command 'undo)
|
||
(listp pending-undo-list)
|
||
(consp buffer-undo-list)))
|
||
(define-key-after menu [undo]
|
||
`(menu-item ,(if (region-active-p) "Undo in Region" "Undo") undo
|
||
:help "Undo last edits")))
|
||
(when (and (not buffer-read-only)
|
||
(undo--last-change-was-undo-p buffer-undo-list))
|
||
(define-key-after menu [undo-redo]
|
||
`(menu-item (if undo-in-region "Redo in Region" "Redo") undo-redo
|
||
:help "Redo last undone edits")))
|
||
menu)
|
||
|
||
(defun context-menu-region (menu click)
|
||
"Populate MENU with region commands."
|
||
(define-key-after menu [separator-region] menu-bar-separator)
|
||
(when (and mark-active (not buffer-read-only))
|
||
(define-key-after menu [cut]
|
||
'(menu-item "Cut" kill-region
|
||
:help
|
||
"Cut (kill) text in region between mark and current position")))
|
||
(when mark-active
|
||
(define-key-after menu [copy]
|
||
;; ns-win.el said: Substitute a Copy function that works better
|
||
;; under X (for GNUstep).
|
||
`(menu-item "Copy" ,(if (featurep 'ns)
|
||
'ns-copy-including-secondary
|
||
'kill-ring-save)
|
||
:help "Copy text in region between mark and current position"
|
||
:keys ,(if (featurep 'ns)
|
||
"\\[ns-copy-including-secondary]"
|
||
"\\[kill-ring-save]"))))
|
||
(when (and (or (gui-backend-selection-exists-p 'CLIPBOARD)
|
||
(if (featurep 'ns) ; like paste-from-menu
|
||
(cdr yank-menu)
|
||
kill-ring))
|
||
(not buffer-read-only))
|
||
(define-key-after menu [paste]
|
||
`(menu-item "Paste" mouse-yank-at-click
|
||
:help "Paste (yank) text most recently cut/copied")))
|
||
(when (and (cdr yank-menu) (not buffer-read-only))
|
||
(let ((submenu (make-sparse-keymap (propertize "Paste from Kill Menu")))
|
||
(i 0))
|
||
(dolist (item (reverse yank-menu))
|
||
(when (consp item)
|
||
(define-key submenu (vector (setq i (1+ i)))
|
||
`(menu-item ,(cadr item)
|
||
,(lambda () (interactive)
|
||
(mouse-yank-from-menu click (car item)))))))
|
||
(define-key-after menu (if (featurep 'ns) [select-paste] [paste-from-menu])
|
||
`(menu-item ,(if (featurep 'ns) "Select and Paste" "Paste from Kill Menu")
|
||
,submenu
|
||
:help "Choose a string from the kill ring and paste it"))))
|
||
(when (and mark-active (not buffer-read-only))
|
||
(define-key-after menu [clear]
|
||
'(menu-item "Clear" delete-active-region
|
||
:help
|
||
"Delete text in region between mark and current position")))
|
||
|
||
(let ((submenu (make-sparse-keymap (propertize "Select"))))
|
||
(define-key-after submenu [mark-whole-buffer]
|
||
`(menu-item "All"
|
||
,(lambda (e) (interactive "e") (mark-thing-at-mouse e 'buffer))
|
||
:help "Mark the whole buffer for a subsequent cut/copy"))
|
||
(with-current-buffer (window-buffer (posn-window (event-end click)))
|
||
(when (let* ((pos (posn-point (event-end click)))
|
||
(char (when pos (char-after pos))))
|
||
(or (and char (eq (char-syntax char) ?\"))
|
||
(nth 3 (save-excursion (syntax-ppss pos)))))
|
||
(define-key-after submenu [mark-string]
|
||
`(menu-item "String"
|
||
,(lambda (e) (interactive "e") (mark-thing-at-mouse e 'string))
|
||
:help "Mark the string at click for a subsequent cut/copy"))))
|
||
(define-key-after submenu [mark-line]
|
||
`(menu-item "Line"
|
||
,(lambda (e) (interactive "e") (mark-thing-at-mouse e 'line))
|
||
:help "Mark the line at click for a subsequent cut/copy"))
|
||
(when (region-active-p)
|
||
(define-key-after submenu [mark-none]
|
||
`(menu-item "None"
|
||
,(lambda (_e) (interactive "e") (deactivate-mark))
|
||
:help "Deactivate the region")))
|
||
|
||
(define-key-after menu [select-region]
|
||
`(menu-item "Select" ,submenu)))
|
||
menu)
|
||
|
||
(defun context-menu-ffap (menu click)
|
||
"Populate MENU with commands that find file at point."
|
||
(save-excursion
|
||
(mouse-set-point click)
|
||
(when (ffap-guess-file-name-at-point)
|
||
(define-key menu [ffap-separator] menu-bar-separator)
|
||
(define-key menu [ffap-at-mouse]
|
||
'(menu-item "Find File or URL" ffap-at-mouse
|
||
:help "Find file or URL from text around mouse click"))))
|
||
menu)
|
||
|
||
(defvar context-menu-entry
|
||
`(menu-item ,(purecopy "Context Menu") ,(make-sparse-keymap)
|
||
:filter ,(lambda (_) (context-menu-map)))
|
||
"Menu item that creates the context menu and can be bound to a mouse key.")
|
||
|
||
(defvar context-menu-mode-map
|
||
(let ((map (make-sparse-keymap)))
|
||
(define-key map [mouse-3] nil)
|
||
(define-key map [down-mouse-3] context-menu-entry)
|
||
(define-key map [menu] #'context-menu-open)
|
||
(if (featurep 'w32)
|
||
(define-key map [apps] #'context-menu-open))
|
||
(when (featurep 'ns)
|
||
(define-key map [C-mouse-1] nil)
|
||
(define-key map [C-down-mouse-1] context-menu-entry))
|
||
map)
|
||
"Context Menu mode map.")
|
||
|
||
(define-minor-mode context-menu-mode
|
||
"Toggle Context Menu mode.
|
||
|
||
When Context Menu mode is enabled, clicking the mouse button down-mouse-3
|
||
activates the menu whose contents depends on its surrounding context."
|
||
:global t)
|
||
|
||
(defun context-menu-open ()
|
||
"Start key navigation of the context menu.
|
||
This is the keyboard interface to \\[context-menu-map]."
|
||
(interactive)
|
||
(let ((inhibit-mouse-event-check t)
|
||
(map (context-menu-map)))
|
||
(if (commandp map)
|
||
(call-interactively map)
|
||
(popup-menu map (point)))))
|
||
|
||
(global-set-key [S-f10] #'context-menu-open)
|
||
|
||
(defun mark-thing-at-mouse (click thing)
|
||
"Activate the region around THING found near the mouse CLICK."
|
||
(let ((bounds (bounds-of-thing-at-mouse click thing)))
|
||
(when bounds
|
||
(goto-char (if mouse-select-region-move-to-beginning
|
||
(car bounds) (cdr bounds)))
|
||
(push-mark (if mouse-select-region-move-to-beginning
|
||
(cdr bounds) (car bounds))
|
||
t 'activate))))
|
||
|
||
(defun mouse-yank-from-menu (click string)
|
||
"Insert STRING at mouse CLICK."
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
(when select-active-regions
|
||
(deactivate-mark))
|
||
(or mouse-yank-at-point (mouse-set-point click))
|
||
(push-mark)
|
||
(insert string))
|
||
|
||
|
||
;; Commands that operate on windows.
|
||
|
||
(defun mouse-minibuffer-check (event)
|
||
(let ((w (posn-window (event-start event))))
|
||
(and (windowp w)
|
||
(window-minibuffer-p w)
|
||
(not (minibuffer-window-active-p w))
|
||
(user-error "Minibuffer window is not active")))
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook))
|
||
|
||
(defun mouse-delete-window (click)
|
||
"Delete the window you click on.
|
||
Do nothing if the frame has just one window.
|
||
This command must be bound to a mouse click."
|
||
(interactive "e")
|
||
(unless (one-window-p t)
|
||
(mouse-minibuffer-check click)
|
||
(delete-window (posn-window (event-start click)))))
|
||
|
||
(defun mouse-select-window (click)
|
||
"Select the window clicked on; don't move point."
|
||
(interactive "e")
|
||
(mouse-minibuffer-check click)
|
||
(let ((oframe (selected-frame))
|
||
(frame (window-frame (posn-window (event-start click)))))
|
||
(select-window (posn-window (event-start click)))
|
||
(raise-frame frame)
|
||
(select-frame frame)
|
||
(or (eq frame oframe)
|
||
(set-mouse-position (selected-frame) (1- (frame-width)) 0))))
|
||
|
||
(define-obsolete-function-alias 'mouse-tear-off-window #'tear-off-window "24.4")
|
||
(defun tear-off-window (click)
|
||
"Delete the selected window, and create a new frame displaying its buffer."
|
||
(interactive (list last-nonmenu-event))
|
||
(mouse-minibuffer-check click)
|
||
(let* ((window (posn-window (event-start click)))
|
||
(buf (window-buffer window))
|
||
(frame (make-frame))) ;FIXME: Use pop-to-buffer.
|
||
(select-frame frame)
|
||
(switch-to-buffer buf)
|
||
(delete-window window)))
|
||
|
||
(defun mouse-delete-other-windows ()
|
||
"Delete all windows except the one you click on."
|
||
(interactive "@")
|
||
(delete-other-windows))
|
||
|
||
(defun mouse-split-window-vertically (click)
|
||
"Select Emacs window mouse is on, then split it vertically in half.
|
||
The window is split at the line clicked on.
|
||
This command must be bound to a mouse click."
|
||
(interactive "@e")
|
||
(mouse-minibuffer-check click)
|
||
(let ((start (event-start click)))
|
||
(select-window (posn-window start))
|
||
(let ((new-height (1+ (cdr (posn-col-row (event-end click)))))
|
||
(first-line window-min-height)
|
||
(last-line (- (window-height) window-min-height)))
|
||
(if (< last-line first-line)
|
||
(user-error "Window too short to split")
|
||
;; Bind `window-combination-resize' to nil so we are sure to get
|
||
;; the split right at the line clicked on.
|
||
(let (window-combination-resize)
|
||
(split-window-vertically
|
||
(min (max new-height first-line) last-line)))))))
|
||
|
||
(defun mouse-split-window-horizontally (click)
|
||
"Select Emacs window mouse is on, then split it horizontally in half.
|
||
The window is split at the column clicked on.
|
||
This command must be bound to a mouse click."
|
||
(interactive "@e")
|
||
(mouse-minibuffer-check click)
|
||
(let ((start (event-start click)))
|
||
(select-window (posn-window start))
|
||
(let ((new-width (1+ (car (posn-col-row (event-end click)))))
|
||
(first-col window-min-width)
|
||
(last-col (- (window-width) window-min-width)))
|
||
(if (< last-col first-col)
|
||
(user-error "Window too narrow to split")
|
||
;; Bind `window-combination-resize' to nil so we are sure to get
|
||
;; the split right at the column clicked on.
|
||
(let (window-combination-resize)
|
||
(split-window-horizontally
|
||
(min (max new-width first-col) last-col)))))))
|
||
|
||
(defun mouse-drag-line (start-event line)
|
||
"Drag a mode line, header line, or vertical line with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action. LINE
|
||
must be one of the symbols `header', `mode', or `vertical'."
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
(let* ((echo-keystrokes 0)
|
||
(start (event-start start-event))
|
||
(window (posn-window start))
|
||
(frame (window-frame window))
|
||
;; `position' records the x- or y-coordinate of the last
|
||
;; sampled position.
|
||
(position (if (eq line 'vertical)
|
||
(+ (window-pixel-left window)
|
||
(car (posn-x-y start)))
|
||
(+ (window-pixel-top window)
|
||
(cdr (posn-x-y start)))))
|
||
;; `last-position' records the x- or y-coordinate of the
|
||
;; previously sampled position. The difference of `position'
|
||
;; and `last-position' determines the size change of WINDOW.
|
||
(last-position position)
|
||
posn-window growth dragged)
|
||
;; Decide on whether we are allowed to track at all and whose
|
||
;; window's edge we drag.
|
||
(cond
|
||
((eq line 'header)
|
||
;; Drag bottom edge of window above the header line.
|
||
(setq window (window-in-direction 'above window t)))
|
||
((eq line 'mode))
|
||
((eq line 'vertical)
|
||
(let ((divider-width (frame-right-divider-width frame)))
|
||
(when (and (or (not (numberp divider-width))
|
||
(zerop divider-width))
|
||
(eq (frame-parameter frame 'vertical-scroll-bars) 'left))
|
||
(setq window (window-in-direction 'left window t))))))
|
||
(let* ((exitfun nil)
|
||
(move
|
||
(lambda (event) (interactive "e")
|
||
(cond
|
||
((not (consp event))
|
||
nil)
|
||
((eq line 'vertical)
|
||
;; Drag right edge of `window'.
|
||
(setq start (event-start event))
|
||
(setq position (car (posn-x-y start)))
|
||
;; Set `posn-window' to the window where `event' was recorded.
|
||
;; This can be `window' or the window on the left or right of
|
||
;; `window'.
|
||
(when (window-live-p (setq posn-window (posn-window start)))
|
||
;; Add left edge of `posn-window' to `position'.
|
||
(setq position (+ (window-pixel-left posn-window) position))
|
||
(unless (posn-area start)
|
||
;; Add width of objects on the left of the text area to
|
||
;; `position'.
|
||
(when (eq (window-current-scroll-bars posn-window) 'left)
|
||
(setq position (+ (window-scroll-bar-width posn-window)
|
||
position)))
|
||
(setq position (+ (car (window-fringes posn-window))
|
||
(or (car (window-margins posn-window)) 0)
|
||
position))))
|
||
;; When the cursor overshoots after shrinking a window to its
|
||
;; minimum size and the dragging direction changes, have the
|
||
;; cursor first catch up with the window edge.
|
||
(unless (or (zerop (setq growth (- position last-position)))
|
||
(and (> growth 0)
|
||
(< position (+ (window-pixel-left window)
|
||
(window-pixel-width window))))
|
||
(and (< growth 0)
|
||
(> position (+ (window-pixel-left window)
|
||
(window-pixel-width window)))))
|
||
(setq dragged t)
|
||
(adjust-window-trailing-edge window growth t t))
|
||
(setq last-position position))
|
||
(t
|
||
;; Drag bottom edge of `window'.
|
||
(setq start (event-start event))
|
||
;; Set `posn-window' to the window where `event' was recorded.
|
||
;; This can be either `window' or the window above or below of
|
||
;; `window'.
|
||
(setq posn-window (posn-window start))
|
||
(setq position (cdr (posn-x-y start)))
|
||
(when (window-live-p posn-window)
|
||
;; Add top edge of `posn-window' to `position'.
|
||
(setq position (+ (window-pixel-top posn-window) position))
|
||
;; If necessary, add height of header line to `position'
|
||
(when (memq (posn-area start)
|
||
'(nil left-fringe right-fringe left-margin right-margin))
|
||
(setq position (+ (window-header-line-height posn-window) position))))
|
||
;; When the cursor overshoots after shrinking a window to its
|
||
;; minimum size and the dragging direction changes, have the
|
||
;; cursor first catch up with the window edge.
|
||
(unless (or (zerop (setq growth (- position last-position)))
|
||
(and (> growth 0)
|
||
(< position (+ (window-pixel-top window)
|
||
(window-pixel-height window))))
|
||
(and (< growth 0)
|
||
(> position (+ (window-pixel-top window)
|
||
(window-pixel-height window)))))
|
||
(setq dragged t)
|
||
(adjust-window-trailing-edge window growth nil t))
|
||
(setq last-position position)))))
|
||
(old-track-mouse track-mouse))
|
||
;; Start tracking. The special value 'dragging' signals the
|
||
;; display engine to freeze the mouse pointer shape for as long
|
||
;; as we drag.
|
||
(setq track-mouse 'dragging)
|
||
;; Loop reading events and sampling the position of the mouse.
|
||
(setq exitfun
|
||
(set-transient-map
|
||
(let ((map (make-sparse-keymap)))
|
||
(define-key map [switch-frame] #'ignore)
|
||
(define-key map [select-window] #'ignore)
|
||
(define-key map [scroll-bar-movement] #'ignore)
|
||
(define-key map [mouse-movement] move)
|
||
;; Swallow drag-mouse-1 events to avoid selecting some other window.
|
||
(define-key map [drag-mouse-1]
|
||
(lambda () (interactive) (funcall exitfun)))
|
||
;; For vertical line dragging swallow also a mouse-1
|
||
;; event (but only if we dragged at least once to allow mouse-1
|
||
;; clicks to get through).
|
||
(when (eq line 'vertical)
|
||
(define-key map [mouse-1]
|
||
`(menu-item "" ,(lambda () (interactive) (funcall exitfun))
|
||
:filter ,(lambda (cmd) (if dragged cmd)))))
|
||
;; Some of the events will of course end up looked up
|
||
;; with a mode-line, header-line or vertical-line prefix ...
|
||
(define-key map [mode-line] map)
|
||
(define-key map [header-line] map)
|
||
(define-key map [vertical-line] map)
|
||
;; ... and some maybe even with a right- or bottom-divider
|
||
;; or left- or right-margin prefix ...
|
||
(define-key map [right-divider] map)
|
||
(define-key map [bottom-divider] map)
|
||
(define-key map [left-margin] map)
|
||
(define-key map [right-margin] map)
|
||
map)
|
||
t (lambda () (setq track-mouse old-track-mouse)))))))
|
||
|
||
(defun mouse-drag-mode-line (start-event)
|
||
"Change the height of a window by dragging on its mode line.
|
||
START-EVENT is the starting mouse event of the drag action.
|
||
|
||
If the drag happens in a mode line on the bottom of a frame and
|
||
that frame's `drag-with-mode-line' parameter is non-nil, drag the
|
||
frame instead."
|
||
(interactive "e")
|
||
(let* ((start (event-start start-event))
|
||
(window (posn-window start))
|
||
(frame (window-frame window))
|
||
(skip-tracking nil)
|
||
filename)
|
||
;; FIXME: is there a better way of determining if the event
|
||
;; started on a buffer name?
|
||
(when (and mouse-drag-mode-line-buffer
|
||
(eq (car (posn-string start))
|
||
(car (with-selected-window window
|
||
(setq filename (buffer-file-name))
|
||
mode-line-buffer-identification)))
|
||
filename
|
||
(file-exists-p filename))
|
||
(let ((mouse-fine-grained-tracking nil))
|
||
(track-mouse
|
||
(setq track-mouse 'drag-source)
|
||
(let ((event (read-event)))
|
||
(if (not (eq (event-basic-type event)
|
||
'mouse-movement))
|
||
(push event unread-command-events)
|
||
(dnd-begin-file-drag filename frame 'copy t)
|
||
(setq skip-tracking t))))))
|
||
(cond
|
||
(skip-tracking t)
|
||
((not (window-live-p window)))
|
||
((or (not (window-at-side-p window 'bottom))
|
||
;; Allow resizing the minibuffer window if it's on the
|
||
;; same frame as and immediately below `window', and it's
|
||
;; either active or `resize-mini-windows' is nil.
|
||
(let ((minibuffer-window (minibuffer-window frame)))
|
||
(and (eq (window-frame minibuffer-window) frame)
|
||
(or (not resize-mini-windows)
|
||
(eq minibuffer-window
|
||
(active-minibuffer-window))))))
|
||
(mouse-drag-line start-event 'mode))
|
||
((and (frame-parameter frame 'drag-with-mode-line)
|
||
(window-at-side-p window 'bottom)
|
||
(let ((minibuffer-window (minibuffer-window frame)))
|
||
(not (eq (window-frame minibuffer-window) frame))))
|
||
;; Drag frame when the window is on the bottom of its frame and
|
||
;; there is no minibuffer window below.
|
||
(mouse-drag-frame-move start-event)))))
|
||
|
||
(defun mouse-drag-header-line (start-event)
|
||
"Change the height of a window by dragging on its header line.
|
||
START-EVENT is the starting mouse event of the drag action.
|
||
|
||
If the drag happens in a header line on the top of a frame and
|
||
that frame's `drag-with-header-line' parameter is non-nil, drag
|
||
the frame instead."
|
||
(interactive "e")
|
||
(let* ((start (event-start start-event))
|
||
(window (posn-window start)))
|
||
(if (and (window-live-p window)
|
||
(not (window-at-side-p window 'top)))
|
||
(mouse-drag-line start-event 'header)
|
||
(let ((frame (window-frame window)))
|
||
(when (frame-parameter frame 'drag-with-header-line)
|
||
(mouse-drag-frame-move start-event))))))
|
||
|
||
(defun mouse-drag-tab-line (start-event)
|
||
"Drag frame with tab line in its topmost window.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(let* ((start (event-start start-event))
|
||
(window (posn-window start)))
|
||
(when (and (window-live-p window)
|
||
(window-at-side-p window 'top))
|
||
(let ((frame (window-frame window)))
|
||
(when (frame-parameter frame 'drag-with-tab-line)
|
||
(mouse-drag-frame-move start-event))))))
|
||
|
||
(defun mouse-drag-vertical-line (start-event)
|
||
"Change the width of a window by dragging on a vertical line.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(mouse-drag-line start-event 'vertical))
|
||
|
||
(defun mouse-drag-frame-resize (start-event part)
|
||
"Drag a frame or one of its edges with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action. Its
|
||
position window denotes the frame that will be dragged.
|
||
|
||
PART specifies the part that has been dragged and must be one of
|
||
the symbols `left', `top', `right', `bottom', `top-left',
|
||
`top-right', `bottom-left', `bottom-right' to drag an internal
|
||
border or edge. If PART equals `move', this means to move the
|
||
frame with the mouse."
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
(let* ((echo-keystrokes 0)
|
||
(start (event-start start-event))
|
||
(window (posn-window start))
|
||
;; FRAME is the frame to drag.
|
||
(frame (if (window-live-p window)
|
||
(window-frame window)
|
||
window))
|
||
;; Initial "first" frame position and size. While dragging we
|
||
;; base all calculations against that size and position.
|
||
(first-pos (frame-position frame))
|
||
(first-left (car first-pos))
|
||
(first-top (cdr first-pos))
|
||
(first-width (frame-text-width frame))
|
||
(first-height (frame-text-height frame))
|
||
;; Don't let FRAME become less large than the size needed to
|
||
;; fit all of its windows.
|
||
(min-text-width
|
||
(+ (frame-windows-min-size frame t nil t)
|
||
(- (frame-inner-width frame) first-width)))
|
||
(min-text-height
|
||
(+ (frame-windows-min-size frame nil nil t)
|
||
(- (frame-inner-height frame) first-height)))
|
||
;; PARENT is the parent frame of FRAME or, if FRAME is a
|
||
;; top-level frame, FRAME's workarea.
|
||
(parent (frame-parent frame))
|
||
(parent-edges
|
||
(if parent
|
||
(frame-edges parent)
|
||
(let* ((attributes
|
||
(car (display-monitor-attributes-list)))
|
||
(workarea (assq 'workarea attributes)))
|
||
(and workarea
|
||
`(,(nth 1 workarea) ,(nth 2 workarea)
|
||
,(+ (nth 1 workarea) (nth 3 workarea))
|
||
,(+ (nth 2 workarea) (nth 4 workarea)))))))
|
||
(parent-left (and parent-edges (nth 0 parent-edges)))
|
||
(parent-top (and parent-edges (nth 1 parent-edges)))
|
||
(parent-right (and parent-edges (nth 2 parent-edges)))
|
||
(parent-bottom (and parent-edges (nth 3 parent-edges)))
|
||
;; Drag types. drag-left/drag-right and drag-top/drag-bottom
|
||
;; are mutually exclusive.
|
||
(drag-left (memq part '(bottom-left left top-left)))
|
||
(drag-top (memq part '(top-left top top-right)))
|
||
(drag-right (memq part '(top-right right bottom-right)))
|
||
(drag-bottom (memq part '(bottom-right bottom bottom-left)))
|
||
;; Initial "first" mouse position. While dragging we base all
|
||
;; calculations against that position.
|
||
(first-x-y (mouse-absolute-pixel-position))
|
||
(first-x (car first-x-y))
|
||
(first-y (cdr first-x-y))
|
||
(exitfun nil)
|
||
(move
|
||
(lambda (event)
|
||
(interactive "e")
|
||
(when (consp event)
|
||
(let* ((last-x-y (mouse-absolute-pixel-position))
|
||
(last-x (car last-x-y))
|
||
(last-y (cdr last-x-y))
|
||
(left (- last-x first-x))
|
||
(top (- last-y first-y))
|
||
alist)
|
||
;; We never want to warp the mouse position here. When
|
||
;; moving the mouse leftward or upward, then with a wide
|
||
;; border the calculated left or top position of the
|
||
;; frame could drop to a value less than zero depending
|
||
;; on where precisely the mouse within the border. We
|
||
;; guard against this by never allowing the frame to
|
||
;; move to a position less than zero here. No such
|
||
;; precautions are used for the right and bottom borders
|
||
;; so with a large internal border parts of that border
|
||
;; may disappear.
|
||
(when (and drag-left (>= last-x parent-left)
|
||
(>= (- first-width left) min-text-width))
|
||
(push `(left . ,(max (+ first-left left) 0)) alist)
|
||
(push `(width . (text-pixels . ,(- first-width left)))
|
||
alist))
|
||
(when (and drag-top (>= last-y parent-top)
|
||
(>= (- first-height top) min-text-height))
|
||
(push `(top . ,(max 0 (+ first-top top))) alist)
|
||
(push `(height . (text-pixels . ,(- first-height top)))
|
||
alist))
|
||
(when (and drag-right (<= last-x parent-right)
|
||
(>= (+ first-width left) min-text-width))
|
||
(push `(width . (text-pixels . ,(+ first-width left)))
|
||
alist))
|
||
(when (and drag-bottom (<= last-y parent-bottom)
|
||
(>= (+ first-height top) min-text-height))
|
||
(push `(height . (text-pixels . ,(+ first-height top)))
|
||
alist))
|
||
(modify-frame-parameters frame alist)))))
|
||
(old-track-mouse track-mouse))
|
||
;; Start tracking. The special value 'dragging' signals the
|
||
;; display engine to freeze the mouse pointer shape for as long
|
||
;; as we drag.
|
||
(setq track-mouse 'dragging)
|
||
;; Loop reading events and sampling the position of the mouse.
|
||
(setq exitfun
|
||
(set-transient-map
|
||
(let ((map (make-sparse-keymap)))
|
||
(define-key map [switch-frame] #'ignore)
|
||
(define-key map [select-window] #'ignore)
|
||
(define-key map [scroll-bar-movement] #'ignore)
|
||
(define-key map [mouse-movement] move)
|
||
;; Swallow drag-mouse-1 events to avoid selecting some other window.
|
||
(define-key map [drag-mouse-1]
|
||
(lambda () (interactive) (funcall exitfun)))
|
||
;; Some of the events will of course end up looked up
|
||
;; with a mode-line, header-line or vertical-line prefix ...
|
||
(define-key map [mode-line] map)
|
||
(define-key map [header-line] map)
|
||
(define-key map [tab-line] map)
|
||
(define-key map [vertical-line] map)
|
||
;; ... and some maybe even with a right- or bottom-divider
|
||
;; prefix.
|
||
(define-key map [right-divider] map)
|
||
(define-key map [bottom-divider] map)
|
||
map)
|
||
t (lambda () (setq track-mouse old-track-mouse))))))
|
||
|
||
(defun mouse-drag-frame-move (start-event)
|
||
"Drag a frame or one of its edges with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action. Its
|
||
position window denotes the frame that will be dragged.
|
||
|
||
PART specifies the part that has been dragged and must be one of
|
||
the symbols `left', `top', `right', `bottom', `top-left',
|
||
`top-right', `bottom-left', `bottom-right' to drag an internal
|
||
border or edge. If PART equals `move', this means to move the
|
||
frame with the mouse."
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
(let* ((echo-keystrokes 0)
|
||
(start (event-start start-event))
|
||
(window (posn-window start))
|
||
;; FRAME is the frame to drag.
|
||
(frame (if (window-live-p window)
|
||
(window-frame window)
|
||
window))
|
||
(native-width (frame-native-width frame))
|
||
(native-height (frame-native-height frame))
|
||
;; Initial "first" frame position and size. While dragging we
|
||
;; base all calculations against that size and position.
|
||
(first-pos (frame-position frame))
|
||
(first-left (car first-pos))
|
||
(first-top (cdr first-pos))
|
||
;; PARENT is the parent frame of FRAME or, if FRAME is a
|
||
;; top-level frame, FRAME's workarea.
|
||
(parent (frame-parent frame))
|
||
(parent-edges
|
||
(if parent
|
||
`(0 0 ,(frame-native-width parent) ,(frame-native-height parent))
|
||
(let* ((attributes
|
||
(car (display-monitor-attributes-list)))
|
||
(workarea (assq 'workarea attributes)))
|
||
(and workarea
|
||
`(,(nth 1 workarea) ,(nth 2 workarea)
|
||
,(+ (nth 1 workarea) (nth 3 workarea))
|
||
,(+ (nth 2 workarea) (nth 4 workarea)))))))
|
||
(parent-left (and parent-edges (nth 0 parent-edges)))
|
||
(parent-top (and parent-edges (nth 1 parent-edges)))
|
||
(parent-right (and parent-edges (nth 2 parent-edges)))
|
||
(parent-bottom (and parent-edges (nth 3 parent-edges)))
|
||
;; Initial "first" mouse position. While dragging we base all
|
||
;; calculations against that position.
|
||
(first-x-y (mouse-absolute-pixel-position))
|
||
(first-x (car first-x-y))
|
||
(first-y (cdr first-x-y))
|
||
;; `snap-width' (maybe also a yet to be provided `snap-height')
|
||
;; could become floats to handle proportionality wrt PARENT.
|
||
;; We don't do any checks on this parameter so far.
|
||
(snap-width (frame-parameter frame 'snap-width))
|
||
;; `snap-x' and `snap-y' record the x- and y-coordinates of the
|
||
;; mouse position when FRAME snapped. As soon as the
|
||
;; difference between `pos-x' and `snap-x' (or `pos-y' and
|
||
;; `snap-y') exceeds the value of FRAME's `snap-width'
|
||
;; parameter, unsnap FRAME (at the respective side). `snap-x'
|
||
;; and `snap-y' nil mean FRAME is currently not snapped.
|
||
snap-x snap-y
|
||
(exitfun nil)
|
||
(move
|
||
(lambda (event)
|
||
(interactive "e")
|
||
(when (consp event)
|
||
(let* ((last-x-y (mouse-absolute-pixel-position))
|
||
(last-x (car last-x-y))
|
||
(last-y (cdr last-x-y))
|
||
(left (- last-x first-x))
|
||
(top (- last-y first-y))
|
||
right bottom)
|
||
(setq left (+ first-left left))
|
||
(setq top (+ first-top top))
|
||
;; Docking and constraining.
|
||
(when (and (numberp snap-width) parent-edges)
|
||
(cond
|
||
;; Docking at the left parent edge.
|
||
((< last-x first-x)
|
||
(cond
|
||
((and (> left parent-left)
|
||
(<= (- left parent-left) snap-width))
|
||
;; Snap when the mouse moved leftward and FRAME's
|
||
;; left edge would end up within `snap-width'
|
||
;; pixels from PARENT's left edge.
|
||
(setq snap-x last-x)
|
||
(setq left parent-left))
|
||
((and (<= left parent-left)
|
||
(<= (- parent-left left) snap-width)
|
||
snap-x (<= (- snap-x last-x) snap-width))
|
||
;; Stay snapped when the mouse moved leftward but
|
||
;; not more than `snap-width' pixels from the time
|
||
;; FRAME snapped.
|
||
(setq left parent-left))
|
||
(t
|
||
;; Unsnap when the mouse moved more than
|
||
;; `snap-width' pixels leftward from the time
|
||
;; FRAME snapped.
|
||
(setq snap-x nil))))
|
||
((> last-x first-x)
|
||
(setq right (+ left native-width))
|
||
(cond
|
||
((and (< right parent-right)
|
||
(<= (- parent-right right) snap-width))
|
||
;; Snap when the mouse moved rightward and FRAME's
|
||
;; right edge would end up within `snap-width'
|
||
;; pixels from PARENT's right edge.
|
||
(setq snap-x last-x)
|
||
(setq left (- parent-right native-width)))
|
||
((and (>= right parent-right)
|
||
(<= (- right parent-right) snap-width)
|
||
snap-x (<= (- last-x snap-x) snap-width))
|
||
;; Stay snapped when the mouse moved rightward but
|
||
;; not more more than `snap-width' pixels from the
|
||
;; time FRAME snapped.
|
||
(setq left (- parent-right native-width)))
|
||
(t
|
||
;; Unsnap when the mouse moved rightward more than
|
||
;; `snap-width' pixels from the time FRAME
|
||
;; snapped.
|
||
(setq snap-x nil)))))
|
||
(cond
|
||
((< last-y first-y)
|
||
(cond
|
||
((and (> top parent-top)
|
||
(<= (- top parent-top) snap-width))
|
||
;; Snap when the mouse moved upward and FRAME's
|
||
;; top edge would end up within `snap-width'
|
||
;; pixels from PARENT's top edge.
|
||
(setq snap-y last-y)
|
||
(setq top parent-top))
|
||
((and (<= top parent-top)
|
||
(<= (- parent-top top) snap-width)
|
||
snap-y (<= (- snap-y last-y) snap-width))
|
||
;; Stay snapped when the mouse moved upward but
|
||
;; not more more than `snap-width' pixels from the
|
||
;; time FRAME snapped.
|
||
(setq top parent-top))
|
||
(t
|
||
;; Unsnap when the mouse moved upward more than
|
||
;; `snap-width' pixels from the time FRAME
|
||
;; snapped.
|
||
(setq snap-y nil))))
|
||
((> last-y first-y)
|
||
(setq bottom (+ top native-height))
|
||
(cond
|
||
((and (< bottom parent-bottom)
|
||
(<= (- parent-bottom bottom) snap-width))
|
||
;; Snap when the mouse moved downward and FRAME's
|
||
;; bottom edge would end up within `snap-width'
|
||
;; pixels from PARENT's bottom edge.
|
||
(setq snap-y last-y)
|
||
(setq top (- parent-bottom native-height)))
|
||
((and (>= bottom parent-bottom)
|
||
(<= (- bottom parent-bottom) snap-width)
|
||
snap-y (<= (- last-y snap-y) snap-width))
|
||
;; Stay snapped when the mouse moved downward but
|
||
;; not more more than `snap-width' pixels from the
|
||
;; time FRAME snapped.
|
||
(setq top (- parent-bottom native-height)))
|
||
(t
|
||
;; Unsnap when the mouse moved downward more than
|
||
;; `snap-width' pixels from the time FRAME
|
||
;; snapped.
|
||
(setq snap-y nil))))))
|
||
|
||
;; If requested, constrain FRAME's draggable areas to
|
||
;; PARENT's edges. The `top-visible' parameter should
|
||
;; be set when FRAME has a draggable header-line. If
|
||
;; set to a number, it ascertains that the top of FRAME
|
||
;; is always constrained to the top of PARENT and that
|
||
;; at least as many pixels of FRAME as specified by that
|
||
;; number are visible on each of the three remaining
|
||
;; sides of PARENT.
|
||
;;
|
||
;; The `bottom-visible' parameter should be set when
|
||
;; FRAME has a draggable mode-line. If set to a number,
|
||
;; it ascertains that the bottom of FRAME is always
|
||
;; constrained to the bottom of PARENT and that at least
|
||
;; as many pixels of FRAME as specified by that number
|
||
;; are visible on each of the three remaining sides of
|
||
;; PARENT.
|
||
(let ((par (frame-parameter frame 'top-visible))
|
||
bottom-visible)
|
||
(unless par
|
||
(setq par (frame-parameter frame 'bottom-visible))
|
||
(setq bottom-visible t))
|
||
(when (and (numberp par) parent-edges)
|
||
(setq left
|
||
(max (min (- parent-right par) left)
|
||
(+ (- parent-left native-width) par)))
|
||
(setq top
|
||
(if bottom-visible
|
||
(min (max top (- parent-top (- native-height par)))
|
||
(- parent-bottom native-height))
|
||
(min (max top parent-top)
|
||
(- parent-bottom par))))))
|
||
;; Use `modify-frame-parameters' since `left' and `top'
|
||
;; may want to move FRAME out of its PARENT.
|
||
(modify-frame-parameters frame `((left . (+ ,left)) (top . (+ ,top))))))))
|
||
(old-track-mouse track-mouse))
|
||
;; Start tracking. The special value 'dragging' signals the
|
||
;; display engine to freeze the mouse pointer shape for as long
|
||
;; as we drag.
|
||
(setq track-mouse 'dragging)
|
||
;; Loop reading events and sampling the position of the mouse.
|
||
(setq exitfun
|
||
(set-transient-map
|
||
(let ((map (make-sparse-keymap)))
|
||
(define-key map [switch-frame] #'ignore)
|
||
(define-key map [select-window] #'ignore)
|
||
(define-key map [scroll-bar-movement] #'ignore)
|
||
(define-key map [mouse-movement] move)
|
||
;; Swallow drag-mouse-1 events to avoid selecting some other window.
|
||
(define-key map [drag-mouse-1]
|
||
(lambda () (interactive) (funcall exitfun)))
|
||
;; Some of the events will of course end up looked up
|
||
;; with a mode-line, header-line or vertical-line prefix ...
|
||
(define-key map [mode-line] map)
|
||
(define-key map [header-line] map)
|
||
(define-key map [tab-line] map)
|
||
(define-key map [vertical-line] map)
|
||
;; ... and some maybe even with a right- or bottom-divider
|
||
;; prefix.
|
||
(define-key map [right-divider] map)
|
||
(define-key map [bottom-divider] map)
|
||
map)
|
||
t (lambda () (setq track-mouse old-track-mouse))))))
|
||
|
||
(defun mouse-drag-left-edge (start-event)
|
||
"Drag left edge of a frame with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(mouse-drag-frame-resize start-event 'left))
|
||
|
||
(defun mouse-drag-top-left-corner (start-event)
|
||
"Drag top left corner of a frame with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(mouse-drag-frame-resize start-event 'top-left))
|
||
|
||
(defun mouse-drag-top-edge (start-event)
|
||
"Drag top edge of a frame with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(mouse-drag-frame-resize start-event 'top))
|
||
|
||
(defun mouse-drag-top-right-corner (start-event)
|
||
"Drag top right corner of a frame with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(mouse-drag-frame-resize start-event 'top-right))
|
||
|
||
(defun mouse-drag-right-edge (start-event)
|
||
"Drag right edge of a frame with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(mouse-drag-frame-resize start-event 'right))
|
||
|
||
(defun mouse-drag-bottom-right-corner (start-event)
|
||
"Drag bottom right corner of a frame with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(mouse-drag-frame-resize start-event 'bottom-right))
|
||
|
||
(defun mouse-drag-bottom-edge (start-event)
|
||
"Drag bottom edge of a frame with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(mouse-drag-frame-resize start-event 'bottom))
|
||
|
||
(defun mouse-drag-bottom-left-corner (start-event)
|
||
"Drag bottom left corner of a frame with the mouse.
|
||
START-EVENT is the starting mouse event of the drag action."
|
||
(interactive "e")
|
||
(mouse-drag-frame-resize start-event 'bottom-left))
|
||
|
||
(defcustom mouse-select-region-move-to-beginning nil
|
||
"Effect of selecting a region extending backward from double click.
|
||
Nil means keep point at the position clicked (region end);
|
||
non-nil means move point to beginning of region."
|
||
:type '(choice (const :tag "Don't move point" nil)
|
||
(const :tag "Move point to beginning of region" t))
|
||
:version "26.1")
|
||
|
||
(defun mouse-set-point (event &optional promote-to-region)
|
||
"Move point to the position clicked on with the mouse.
|
||
This should be bound to a mouse click event type.
|
||
If PROMOTE-TO-REGION is non-nil and event is a multiple-click, select
|
||
the corresponding element around point, with the resulting position of
|
||
point determined by `mouse-select-region-move-to-beginning'."
|
||
(interactive "e\np")
|
||
(mouse-minibuffer-check event)
|
||
(if (and promote-to-region (> (event-click-count event) 1))
|
||
(progn
|
||
(mouse-set-region event)
|
||
(when mouse-select-region-move-to-beginning
|
||
(when (> (posn-point (event-start event)) (region-beginning))
|
||
(exchange-point-and-mark))))
|
||
;; 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))))
|
||
|
||
(defvar mouse--drag-start-event nil)
|
||
|
||
(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
|
||
(if (eq (posn-window (event-end click)) (selected-window))
|
||
(posn-point (event-end click))
|
||
;; If the mouse ends up in any other window or on the menu
|
||
;; bar, use `window-point' of selected window (Bug#23707).
|
||
(window-point)))
|
||
(click-count (event-click-count click)))
|
||
(let ((drag-start (terminal-parameter nil 'mouse-drag-start)))
|
||
(when drag-start
|
||
;; Drag events don't come with a click count, sadly, so we hack
|
||
;; our way around this problem by remembering the start-event in
|
||
;; `mouse-drag-start' and fetching the click-count from there.
|
||
(when (and (<= click-count 1)
|
||
(equal beg (posn-point (event-start drag-start))))
|
||
(setq click-count (event-click-count drag-start)))
|
||
;; Occasionally we get spurious drag events where the user hasn't
|
||
;; dragged his mouse, but instead Emacs has dragged the text under the
|
||
;; user's mouse. Try to recover those cases (bug#17562).
|
||
(when (and (equal (posn-x-y (event-start click))
|
||
(posn-x-y (event-end click)))
|
||
(not (eq (car drag-start) 'mouse-movement)))
|
||
(setq end beg))
|
||
(setf (terminal-parameter nil 'mouse-drag-start) nil)))
|
||
(when (and (integerp beg) (integerp end))
|
||
(let ((range (mouse-start-end beg end (1- click-count))))
|
||
(if (< end beg)
|
||
(setq end (nth 0 range) beg (nth 1 range))
|
||
(setq beg (nth 0 range) end (nth 1 range)))))
|
||
(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-local 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)
|
||
|
||
(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)
|
||
|
||
(defun mouse-scroll-subr (window jump &optional overlay start adjust)
|
||
"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.
|
||
ADJUST, if non-nil, is a function, without arguments, to call after
|
||
setting point.
|
||
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))
|
||
(when adjust
|
||
(funcall adjust))
|
||
(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.
|
||
|
||
When the region already exists and `mouse-drag-and-drop-region'
|
||
is non-nil, this moves the entire region of text to where mouse
|
||
is dragged over to."
|
||
(interactive "e")
|
||
(if (and mouse-drag-and-drop-region
|
||
(not (member 'triple (event-modifiers start-event)))
|
||
(equal (mouse-posn-property (event-start start-event) 'face) 'region))
|
||
(mouse-drag-and-drop-region start-event)
|
||
;; Give temporary modes such as isearch a chance to turn off.
|
||
(run-hooks 'mouse-leave-buffer-hook)
|
||
(mouse-drag-track start-event)))
|
||
|
||
;; Inhibit the region-confinement when undoing mouse-drag-region
|
||
;; immediately after the command. Otherwise, the selection left
|
||
;; active around the dragged text would prevent an undo of the whole
|
||
;; operation.
|
||
(put 'mouse-drag-region 'undo-inhibit-region 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)))
|
||
;; FIXME: When STR has a `category' property and there's another
|
||
;; `category' property at PT, we should probably disregard the
|
||
;; `category' property at PT while doing the (get-char-property
|
||
;; pt property w)!
|
||
(or (and str
|
||
(get-text-property (cdr str) property (car str)))
|
||
;; Mouse clicks in the fringe come with a position in
|
||
;; (nth 5). This is useful but is not exactly where we clicked, so
|
||
;; don't look up that position's properties!
|
||
(and pt (not (memq (posn-area pos)
|
||
'(left-fringe right-fringe
|
||
left-margin right-margin tab-bar)))
|
||
(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 specify a buffer position in the current buffer, as a list
|
||
of the form returned by the `event-start' and `event-end' functions,
|
||
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 determines 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 an array, the mouse-1 event is translated into the
|
||
first element of that array, 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)
|
||
(let ((area (posn-area pos)))
|
||
(when area
|
||
(key-binding (vector area 'follow-link) nil t pos)))
|
||
(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)
|
||
"Track mouse drags by highlighting area between point and cursor.
|
||
The region will be defined with mark and point."
|
||
(mouse-minibuffer-check start-event)
|
||
(setq mouse-selection-click-count-buffer (current-buffer))
|
||
(deactivate-mark)
|
||
(let* ((start-posn (event-start start-event))
|
||
(start-point (posn-point start-posn))
|
||
(start-window (posn-window start-posn))
|
||
(_ (with-current-buffer (window-buffer start-window)
|
||
(setq deactivate-mark nil)))
|
||
;; 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)
|
||
(bounds (window-edges start-window))
|
||
(make-cursor-line-fully-visible nil)
|
||
(top (nth 1 bounds))
|
||
(bottom (if (or (window-minibuffer-p start-window)
|
||
;; Do not account for the mode line if there
|
||
;; is no mode line, which is common for child
|
||
;; frames.
|
||
(not mode-line-format))
|
||
(nth 3 bounds)
|
||
;; Don't count the mode line.
|
||
(1- (nth 3 bounds))))
|
||
(click-count (1- (event-click-count start-event)))
|
||
;; Save original automatic scrolling behavior (see below).
|
||
(auto-hscroll-mode-saved auto-hscroll-mode)
|
||
(scroll-margin-saved scroll-margin)
|
||
(old-track-mouse track-mouse)
|
||
(cleanup (lambda ()
|
||
(setq track-mouse old-track-mouse)
|
||
(setq auto-hscroll-mode auto-hscroll-mode-saved)
|
||
(setq scroll-margin scroll-margin-saved))))
|
||
(condition-case err
|
||
(progn
|
||
(setq mouse-selection-click-count click-count)
|
||
|
||
;; Suppress automatic scrolling near the edges while tracking
|
||
;; movement, as it interferes with the natural dragging behavior
|
||
;; (point will unexpectedly be moved beneath the pointer, making
|
||
;; selections in auto-scrolling margins impossible).
|
||
(setq auto-hscroll-mode nil)
|
||
(setq scroll-margin 0)
|
||
|
||
;; 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))
|
||
|
||
;; Activate the region, using `mouse-start-end' to determine where
|
||
;; to put point and mark (e.g., double-click will select a word).
|
||
(setq-local 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)))
|
||
|
||
(setf (terminal-parameter nil 'mouse-drag-start) start-event)
|
||
;; Set 'track-mouse' to something neither nil nor t, so that mouse
|
||
;; events are not reported to have happened on the tool bar or the
|
||
;; tab bar, as that breaks drag events that originate on the window
|
||
;; body below these bars; see make_lispy_position and bug#51794.
|
||
(setq track-mouse 'drag-tracking)
|
||
|
||
(set-transient-map
|
||
(let ((map (make-sparse-keymap)))
|
||
(define-key map [switch-frame] #'ignore)
|
||
(define-key map [select-window] #'ignore)
|
||
(define-key map [mouse-movement]
|
||
(lambda (event) (interactive "e")
|
||
(let* ((end (event-end event))
|
||
(end-point (posn-point end)))
|
||
(unless (eq end-point start-point)
|
||
;; And remember that we have moved, so mouse-set-region can know
|
||
;; its event is really a drag event.
|
||
(setcar start-event 'mouse-movement))
|
||
(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))))))))
|
||
map)
|
||
t (lambda ()
|
||
(funcall cleanup)
|
||
;; Don't deactivate the mark when the context menu was invoked
|
||
;; by down-mouse-3 immediately after down-mouse-1 and without
|
||
;; releasing the mouse button with mouse-1. This allows to use
|
||
;; region-related context menu to operate on the selected region.
|
||
(unless (and context-menu-mode
|
||
(eq (car-safe (aref (this-command-keys-vector) 0))
|
||
'down-mouse-3))
|
||
(deactivate-mark)
|
||
(pop-mark)))))
|
||
;; Cleanup on errors
|
||
(error (funcall cleanup)
|
||
(signal (car err) (cdr err))))))
|
||
|
||
(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)))))
|
||
|
||
;; 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)) ?\())
|
||
(if (/= (syntax-class (syntax-after start)) 4) ; raw syntax code for ?\(
|
||
;; This happens in CC Mode when unbalanced parens in CPP
|
||
;; constructs are given punctuation syntax with
|
||
;; syntax-table text properties. (2016-02-21).
|
||
(signal 'scan-error (list "Containing expression ends prematurely"
|
||
start start))
|
||
(list start
|
||
(save-excursion
|
||
(goto-char start)
|
||
(forward-sexp 1)
|
||
(point)))))
|
||
((and (= mode 1)
|
||
(= start end)
|
||
(char-after start)
|
||
(= (char-syntax (char-after start)) ?\)))
|
||
(if (/= (syntax-class (syntax-after start)) 5) ; raw syntax code for ?\)
|
||
;; See above comment about CC Mode.
|
||
(signal 'scan-error (list "Unbalanced parentheses" start 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)))
|
||
;; FIXME: Use save-excursion
|
||
(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 (&optional event)
|
||
"Insert the primary selection,
|
||
Move point to the end of the inserted text, and set mark at
|
||
beginning. If `mouse-yank-at-point' is non-nil, insert at point
|
||
otherwise insert it at the position of EVENT."
|
||
(interactive (list last-nonmenu-event))
|
||
;; 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 event))
|
||
(let ((primary (gui-get-primary-selection)))
|
||
(push-mark)
|
||
(insert-for-yank primary)))
|
||
|
||
(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 ((inhibit-modification-hooks t))
|
||
(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 ((inhibit-modification-hooks t))
|
||
(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.
|
||
(funcall region-extract-function 'delete-only)
|
||
(kill-region (mark t) (point) 'region))
|
||
(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 (funcall region-extract-function nil) 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))
|
||
(gui-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))
|
||
;; FIXME: Use mouse-drag-track!
|
||
(let (event end end-point)
|
||
(track-mouse
|
||
(while (progn
|
||
(setq event (read--potential-mouse-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)
|
||
(gui-set-selection 'SECONDARY nil)
|
||
(select-window start-window)
|
||
(save-excursion
|
||
(goto-char mouse-secondary-start)
|
||
(sit-for 1)
|
||
nil))
|
||
(gui-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 (gui-get-selection 'SECONDARY)))
|
||
(if secondary
|
||
(insert-for-yank 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)
|
||
(gui-set-selection 'SECONDARY str))))
|
||
|
||
(defun secondary-selection-exist-p ()
|
||
"Return non-nil if the secondary selection exists in the current buffer."
|
||
(memq mouse-secondary-overlay (overlays-in (point-min) (point-max))))
|
||
|
||
(defun secondary-selection-to-region ()
|
||
"Set beginning and end of the region to those of the secondary selection.
|
||
This puts mark and point at the beginning and the end of the
|
||
secondary selection, respectively. This works when the secondary
|
||
selection exists and the region does not exist in current buffer;
|
||
the secondary selection will be deleted afterward.
|
||
If the region is active, or the secondary selection doesn't exist,
|
||
this function does nothing."
|
||
(when (and (not (region-active-p))
|
||
(secondary-selection-exist-p))
|
||
(let ((beg (overlay-start mouse-secondary-overlay))
|
||
(end (overlay-end mouse-secondary-overlay)))
|
||
(push-mark beg t t)
|
||
(goto-char end))
|
||
;; Delete the secondary selection on current buffer.
|
||
(delete-overlay mouse-secondary-overlay)))
|
||
|
||
(defun secondary-selection-from-region ()
|
||
"Set beginning and end of the secondary selection to those of the region.
|
||
When there is no region, this function does nothing."
|
||
(when (region-active-p) ; Create the secondary selection from the region.
|
||
(delete-overlay mouse-secondary-overlay) ; Delete the secondary selection even on a different buffer.
|
||
(move-overlay mouse-secondary-overlay (region-beginning) (region-end))))
|
||
|
||
|
||
(declare-function rectangle--col-pos "rect" (col kind))
|
||
(declare-function rectangle--reset-point-crutches "rect" ())
|
||
|
||
(defconst mouse--rectangle-track-cursor t
|
||
"Whether the mouse tracks the cursor when selecting a rectangle.
|
||
If nil, the mouse tracks the rectangle corner instead.")
|
||
|
||
(defun mouse-drag-region-rectangle (start-event)
|
||
"Set the region to the rectangle that the mouse is dragged over.
|
||
This must be bound to a button-down mouse event."
|
||
(interactive "e")
|
||
(let* ((scroll-margin 0)
|
||
(start-pos (event-start start-event))
|
||
(start-posn (event-start start-event))
|
||
(start-point (posn-point start-posn))
|
||
(start-window (posn-window start-posn))
|
||
(start-hscroll (window-hscroll start-window))
|
||
(start-col (+ (car (posn-col-row start-pos)) start-hscroll))
|
||
(bounds (window-edges start-window))
|
||
(top (nth 1 bounds))
|
||
(bottom (if (window-minibuffer-p start-window)
|
||
(nth 3 bounds)
|
||
(1- (nth 3 bounds))))
|
||
(extra-margin (round (line-number-display-width 'columns)))
|
||
(dragged nil)
|
||
(old-track-mouse track-mouse)
|
||
(old-mouse-fine-grained-tracking mouse-fine-grained-tracking)
|
||
;; For right-to-left text, columns are counted from the right margin;
|
||
;; translate from mouse events, which always count from the left.
|
||
(adjusted-col (lambda (col)
|
||
(if (eq (current-bidi-paragraph-direction)
|
||
'right-to-left)
|
||
(- (window-width) col extra-margin
|
||
(if mouse--rectangle-track-cursor 1 -1))
|
||
(- col extra-margin))))
|
||
(map (make-sparse-keymap)))
|
||
(define-key map [switch-frame] #'ignore)
|
||
(define-key map [select-window] #'ignore)
|
||
(define-key map [mouse-movement]
|
||
(lambda (event)
|
||
(interactive "e")
|
||
(unless dragged
|
||
;; This is actually a drag.
|
||
(setq dragged t)
|
||
(mouse-minibuffer-check start-event)
|
||
(deactivate-mark)
|
||
(setq-local transient-mark-mode
|
||
(if (eq transient-mark-mode 'lambda)
|
||
'(only)
|
||
(cons 'only transient-mark-mode)))
|
||
(posn-set-point start-pos)
|
||
(rectangle-mark-mode)
|
||
;; Only tell rectangle about the exact column if we are possibly
|
||
;; beyond end-of-line or in a tab, since the column we got from
|
||
;; the mouse position isn't necessarily accurate for use in
|
||
;; specifying a rectangle (which uses the `move-to-column'
|
||
;; measure).
|
||
(when (or (eolp) (eq (following-char) ?\t))
|
||
(let ((col (funcall adjusted-col start-col)))
|
||
(rectangle--col-pos col 'mark)
|
||
(rectangle--col-pos col 'point))))
|
||
|
||
(let* ((posn (event-end event))
|
||
(window (posn-window posn))
|
||
(hscroll (if (window-live-p window)
|
||
(window-hscroll window)
|
||
0))
|
||
(mouse-row (cddr (mouse-position)))
|
||
(mouse-col (+ (car (posn-col-row posn)) hscroll
|
||
(if mouse--rectangle-track-cursor 0 1)))
|
||
(set-col (lambda ()
|
||
(if (or (eolp) (eq (following-char) ?\t))
|
||
(rectangle--col-pos
|
||
(funcall adjusted-col mouse-col) 'point)
|
||
(unless mouse--rectangle-track-cursor
|
||
(forward-char))
|
||
(rectangle--reset-point-crutches))))
|
||
(scroll-adjust (lambda ()
|
||
(move-to-column
|
||
(funcall adjusted-col mouse-col))
|
||
(funcall set-col))))
|
||
(if (and (eq window start-window)
|
||
mouse-row
|
||
(<= top mouse-row (1- bottom)))
|
||
;; Drag inside the same window.
|
||
(progn
|
||
(posn-set-point posn)
|
||
(funcall set-col))
|
||
;; Drag outside the window: scroll.
|
||
(cond
|
||
((null mouse-row))
|
||
((< mouse-row top)
|
||
(mouse-scroll-subr
|
||
start-window (- mouse-row top) nil start-point
|
||
scroll-adjust))
|
||
((>= mouse-row bottom)
|
||
(mouse-scroll-subr
|
||
start-window (1+ (- mouse-row bottom)) nil start-point
|
||
scroll-adjust)))))))
|
||
(condition-case err
|
||
(progn
|
||
(setq track-mouse t)
|
||
(setq mouse-fine-grained-tracking t)
|
||
(set-transient-map
|
||
map t
|
||
(lambda ()
|
||
(setq track-mouse old-track-mouse)
|
||
(setq mouse-fine-grained-tracking old-mouse-fine-grained-tracking)
|
||
(when (or (not dragged)
|
||
(not (mark))
|
||
(equal (rectangle-dimensions (mark) (point)) '(0 . 1)))
|
||
;; No nontrivial region selected; deactivate rectangle mode.
|
||
(deactivate-mark)))))
|
||
;; Clean up in case something went wrong.
|
||
(error (setq track-mouse old-track-mouse)
|
||
(setq mouse-fine-grained-tracking old-mouse-fine-grained-tracking)
|
||
(signal (car err) (cdr err))))))
|
||
|
||
;; The drag event must be bound to something but does not need any effect,
|
||
;; as everything takes place in `mouse-drag-region-rectangle'.
|
||
;; The click event can be anything; `mouse-set-point' is just a convenience.
|
||
(global-set-key [C-M-down-mouse-1] #'mouse-drag-region-rectangle)
|
||
(global-set-key [C-M-drag-mouse-1] #'ignore)
|
||
(global-set-key [C-M-mouse-1] #'mouse-set-point)
|
||
|
||
|
||
(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)
|
||
|
||
(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
|
||
: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\\b\\|Mail\\|Group\\|Score\\|Summary\\|Article"
|
||
. "Mail/News")
|
||
("\\<C\\>" . "C")
|
||
("ObjC" . "C")
|
||
("Text" . "Text")
|
||
("Outline" . "Text")
|
||
("\\(HT\\|SG\\|X\\|XHT\\)ML" . "SGML")
|
||
("\\blog\\b\\|diff\\|\\bvc\\b\\|cvs\\|Git\\|Annotate" . "Version Control")
|
||
("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 ((buf (x-popup-menu event (mouse-buffer-menu-map)))
|
||
(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-map ()
|
||
;; Make an alist of elements that look like (MENU-ITEM . BUFFER).
|
||
(let ((buffers (buffer-list)) split-by-major-mode sum-of-squares)
|
||
(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
|
||
(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 (mapcan).
|
||
(mapcan 'cddr split-by-major-mode))))
|
||
(and others-list
|
||
(setq subdivided-menus
|
||
(cons (cons "Others" others-list)
|
||
subdivided-menus)))))
|
||
(cons "Buffer Menu" (nreverse subdivided-menus)))
|
||
(cons "Buffer Menu"
|
||
(mouse-buffer-menu-split "Select Buffer"
|
||
(mouse-buffer-menu-alist buffers))))))
|
||
|
||
(defun mouse-buffer-menu-alist (buffers)
|
||
(let (tail
|
||
(maxlen 0)
|
||
head)
|
||
(setq buffers
|
||
(sort buffers
|
||
(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))))
|
||
|
||
;; Font selection.
|
||
|
||
(defun font-menu-add-default ()
|
||
(let* ((default (frame-parameter nil 'font))
|
||
(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-generate-font-name-for-menu (entity)
|
||
"Return a short name for font entity ENTITY.
|
||
The name should be used to describe ENTITY in the case that its
|
||
family is already known, such as in a pane generated by
|
||
`mouse-generate-font-menu'."
|
||
(let ((weight (font-get entity :weight))
|
||
(slant (font-get entity :slant))
|
||
(width (font-get entity :width))
|
||
(size (font-get entity :size))
|
||
(adstyle (font-get entity :adstyle))
|
||
(name ""))
|
||
(when weight
|
||
(setq name (concat name (symbol-name weight) " ")))
|
||
(when (and slant
|
||
(not (eq slant 'normal)))
|
||
(setq name (concat name (symbol-name slant) " ")))
|
||
(when (and width (not (eq width 'normal)))
|
||
(setq name (concat name (symbol-name width) " ")))
|
||
(when (and size (not (zerop size)))
|
||
(setq name (concat name (number-to-string size) " ")))
|
||
(when adstyle
|
||
(setq name (concat name (if (symbolp adstyle)
|
||
(symbol-name adstyle)
|
||
(number-to-string adstyle))
|
||
" ")))
|
||
(string-trim-right name)))
|
||
|
||
(defun mouse-generate-font-menu ()
|
||
"Return a list of menu panes for each font family."
|
||
(let ((families (font-family-list))
|
||
(panes (list "Font families")))
|
||
(dolist (family families)
|
||
(when family
|
||
(let* ((fonts (list-fonts (font-spec :family family)))
|
||
(pane (if fonts (list family)
|
||
(list family (cons family family)))))
|
||
(when fonts
|
||
(dolist (font fonts)
|
||
(setq pane
|
||
(nconc pane
|
||
(list (list (or (font-get font :name)
|
||
(mouse-generate-font-name-for-menu font))
|
||
(font-xlfd-name font)))))))
|
||
(setq panes (nconc panes (list pane))))))
|
||
panes))
|
||
|
||
(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"))
|
||
(let ((result (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))
|
||
'(("More Fonts" ("By Family" more))))))))
|
||
(if (eq result 'more)
|
||
(car (x-popup-menu
|
||
(if (listp last-nonmenu-event)
|
||
last-nonmenu-event
|
||
(list '(0 0) (selected-window)))
|
||
(mouse-generate-font-menu)))
|
||
result)))
|
||
|
||
(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"))
|
||
(list (mouse-select-font))))
|
||
(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))
|
||
(defvar w32-use-w32-font-dialog)
|
||
(defvar w32-fixed-font-alist)
|
||
|
||
(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 (and (functionp 'x-select-font)
|
||
(or (not (boundp 'w32-use-w32-font-dialog))
|
||
w32-use-w32-font-dialog))
|
||
(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
|
||
(if (eq system-type 'windows-nt)
|
||
w32-fixed-font-alist
|
||
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.
|
||
(let ((font (if (eq choice 'x-select-font)
|
||
(x-select-font)
|
||
(symbol-name choice))))
|
||
(buffer-face-mode-invoke
|
||
(if (fontp font 'font-spec)
|
||
(list :font font)
|
||
(font-face-attributes font))
|
||
t (called-interactively-p 'interactive)))))))))
|
||
|
||
|
||
;; Drag and drop support.
|
||
(defcustom mouse-drag-and-drop-region nil
|
||
"If non-nil, dragging the mouse drags the region, if it exists.
|
||
If the value is a modifier, such as `control' or `shift' or
|
||
`meta', then if that modifier key is pressed when dropping the
|
||
region, text is copied instead of being cut."
|
||
:type `(choice
|
||
(const :tag "Disable dragging the region" nil)
|
||
,@(mapcar
|
||
(lambda (modifier)
|
||
`(const :tag ,(format "Enable, but copy with the %s modifier"
|
||
modifier)
|
||
,modifier))
|
||
'(alt super hyper shift control meta))
|
||
(other :tag "Enable dragging the region" t))
|
||
:version "26.1")
|
||
|
||
(defcustom mouse-drag-and-drop-region-cut-when-buffers-differ nil
|
||
"If non-nil, cut text also when source and destination buffers differ.
|
||
If this option is nil, `mouse-drag-and-drop-region' will leave
|
||
the text in the source buffer alone when dropping it in a
|
||
different buffer. If this is non-nil, it will cut the text just
|
||
as it does when dropping text in the source buffer."
|
||
:type 'boolean
|
||
:version "26.1")
|
||
|
||
(defcustom mouse-drag-and-drop-region-show-tooltip 256
|
||
"If non-nil, text is shown by a tooltip in a graphic display.
|
||
If this option is nil, `mouse-drag-and-drop-region' does not show
|
||
tooltips. If this is t, it shows the entire text dragged in a
|
||
tooltip. If this is an integer (as with the default value of
|
||
256), it will show up to that many characters of the dragged text
|
||
in a tooltip."
|
||
:type '(choice
|
||
(const :tag "Do not show tooltips" nil)
|
||
(const :tag "Show all text" t)
|
||
(integer :tag "Max number of characters to show" 256))
|
||
:version "26.1")
|
||
|
||
(defcustom mouse-drag-and-drop-region-show-cursor t
|
||
"If non-nil, move point with mouse cursor during dragging.
|
||
If this is nil, `mouse-drag-and-drop-region' leaves point alone.
|
||
Otherwise, it will move point together with the mouse cursor and,
|
||
in addition, temporarily highlight the original region with the
|
||
`mouse-drag-and-drop-region' face."
|
||
:type 'boolean
|
||
:version "26.1")
|
||
|
||
(defcustom mouse-drag-and-drop-region-cross-program nil
|
||
"If non-nil, allow dragging text to other programs."
|
||
:type 'boolean
|
||
:version "29.1")
|
||
|
||
(defface mouse-drag-and-drop-region '((t :inherit region))
|
||
"Face to highlight original text during dragging.
|
||
This face is used by `mouse-drag-and-drop-region' to temporarily
|
||
highlight the original region when
|
||
`mouse-drag-and-drop-region-show-cursor' is non-nil."
|
||
:version "26.1")
|
||
|
||
(declare-function rectangle-dimensions "rect" (start end))
|
||
(declare-function rectangle-position-as-coordinates "rect" (position))
|
||
(declare-function rectangle-intersect-p "rect" (pos1 size1 pos2 size2))
|
||
(declare-function x-begin-drag "xfns.c")
|
||
|
||
(defun mouse-drag-and-drop-region-display-tooltip (tooltip)
|
||
"Display TOOLTIP, a tooltip string, using `x-show-tip'.
|
||
Call `tooltip-show-help-non-mode' instead on non-graphical displays."
|
||
(if (display-graphic-p)
|
||
(let ((params (copy-sequence tooltip-frame-parameters))
|
||
(fg (face-attribute 'tooltip :foreground))
|
||
(bg (face-attribute 'tooltip :background)))
|
||
(when (stringp fg)
|
||
(setf (alist-get 'foreground-color params) fg)
|
||
(setf (alist-get 'border-color params) fg))
|
||
(when (stringp bg)
|
||
(setf (alist-get 'background-color params) bg))
|
||
;; Don't time out: this leads to very confusing behavior when
|
||
;; Emacs isn't visible, and the only indication that the user
|
||
;; is actually dragging something abruptly disappears.
|
||
(x-show-tip tooltip nil params most-positive-fixnum))
|
||
(tooltip-show-help-non-mode tooltip)))
|
||
|
||
(declare-function x-hide-tip "xfns.c")
|
||
(declare-function x-show-tip "xfns.c")
|
||
|
||
(defun mouse-drag-and-drop-region-hide-tooltip ()
|
||
"Hide any tooltip currently displayed.
|
||
Call `tooltip-show-help-non-mode' to clear the echo area message
|
||
instead on non-graphical displays."
|
||
(if (display-graphic-p)
|
||
(x-hide-tip)
|
||
(tooltip-show-help-non-mode nil)))
|
||
|
||
(defun mouse-drag-and-drop-region (event)
|
||
"Move text in the region to point where mouse is dragged to.
|
||
The transportation of text is also referred as `drag and drop'.
|
||
When text is dragged over to a different buffer, or if a
|
||
modifier key was pressed when dropping, and the value of the
|
||
variable `mouse-drag-and-drop-region' is that modifier, the text
|
||
is copied instead of being cut."
|
||
(interactive "e")
|
||
(let* ((mouse-button (event-basic-type last-input-event))
|
||
(mouse-drag-and-drop-region-show-tooltip
|
||
(when (and mouse-drag-and-drop-region-show-tooltip
|
||
(> mouse-drag-and-drop-region-show-tooltip 0)
|
||
(display-multi-frame-p)
|
||
(require 'tooltip))
|
||
mouse-drag-and-drop-region-show-tooltip))
|
||
(mouse-highlight nil)
|
||
(start (region-beginning))
|
||
(end (region-end))
|
||
(point (point))
|
||
(buffer (current-buffer))
|
||
(window (selected-window))
|
||
(text-from-read-only buffer-read-only)
|
||
;; Use multiple overlays to cover cases where the region has more
|
||
;; than one boundary.
|
||
(mouse-drag-and-drop-overlays (mapcar (lambda (bounds)
|
||
(make-overlay (car bounds)
|
||
(cdr bounds)))
|
||
(region-bounds)))
|
||
(region-noncontiguous (region-noncontiguous-p))
|
||
;; Otherwise, the mouse periodically moves on top of the
|
||
;; tooltip.
|
||
(mouse-fine-grained-tracking t)
|
||
(was-tooltip-mode tooltip-mode)
|
||
;; System tooltips tend to flicker and in general work
|
||
;; incorrectly.
|
||
(use-system-tooltips nil)
|
||
;; Whether or not some text was ``cut'' from Emacs to another
|
||
;; program and the cleaanup code should not try modifying the
|
||
;; region.
|
||
drag-was-cross-program
|
||
point-to-paste
|
||
point-to-paste-read-only
|
||
window-to-paste
|
||
buffer-to-paste
|
||
cursor-in-text-area
|
||
no-modifier-on-drop
|
||
drag-but-negligible
|
||
clicked
|
||
value-selection ; This remains nil when event was "click".
|
||
text-tooltip
|
||
states
|
||
window-exempt
|
||
drag-again-mouse-position)
|
||
|
||
(unwind-protect
|
||
(progn
|
||
;; Without this moving onto text with a help-echo will
|
||
;; interfere with the tooltip containing dragged text.
|
||
(tooltip-mode -1)
|
||
;; STATES stores for each window on this frame its start and point
|
||
;; positions so we can restore them on all windows but for the one
|
||
;; where the drop occurs. For inter-frame drags we'll have to do
|
||
;; this for all windows on all visible frames. In addition we save
|
||
;; also the cursor type for the window's buffer so we can restore it
|
||
;; in case we modified it.
|
||
;; https://lists.gnu.org/r/emacs-devel/2017-12/msg00090.html
|
||
(walk-window-tree
|
||
(lambda (window)
|
||
(setq states
|
||
(cons
|
||
(list
|
||
window
|
||
(copy-marker (window-start window))
|
||
(copy-marker (window-point window))
|
||
(with-current-buffer (window-buffer window)
|
||
cursor-type))
|
||
states))))
|
||
|
||
(ignore-errors
|
||
(catch 'cross-program-drag
|
||
(track-mouse
|
||
(setq track-mouse (if mouse-drag-and-drop-region-cross-program
|
||
;; When `track-mouse' is `drop', we
|
||
;; get events with a posn-window of
|
||
;; the grabbed frame even if some
|
||
;; window is between that and the
|
||
;; pointer. This makes dragging to a
|
||
;; window on top of a frame
|
||
;; impossible. With this value of
|
||
;; `track-mouse', no frame is returned
|
||
;; in that particular case, which
|
||
;; tells us to initiate interprogram
|
||
;; drag-and-drop.
|
||
'drag-source
|
||
'drop))
|
||
;; When event was "click" instead of "drag", skip loop.
|
||
(while (progn
|
||
(setq event (read-key)) ; read-event or read-key
|
||
(or (mouse-movement-p event)
|
||
;; Handle `mouse-autoselect-window'.
|
||
(memq (car event) '(select-window switch-frame))))
|
||
(catch 'drag-again
|
||
;; If the mouse is in the drag scroll margin, scroll
|
||
;; either up or down depending on which margin it is in.
|
||
(when mouse-drag-and-drop-region-scroll-margin
|
||
(let* ((row (cdr (posn-col-row (event-end event))))
|
||
(window (when (windowp (posn-window (event-end event)))
|
||
(posn-window (event-end event))))
|
||
(text-height (when window
|
||
(window-text-height window)))
|
||
;; Make sure it's possible to scroll both up
|
||
;; and down if the margin is too large for the
|
||
;; window.
|
||
(margin (when text-height
|
||
(min (/ text-height 3)
|
||
mouse-drag-and-drop-region-scroll-margin))))
|
||
(when (windowp window)
|
||
;; At 2 lines, the window becomes too small for any
|
||
;; meaningful scrolling.
|
||
(unless (<= text-height 2)
|
||
;; We could end up at the beginning or end of the
|
||
;; buffer.
|
||
(ignore-errors
|
||
(cond
|
||
;; Inside the bottom scroll margin, scroll up.
|
||
((> row (- text-height margin))
|
||
(with-selected-window window
|
||
(scroll-up 1)))
|
||
;; Inside the top scroll margin, scroll down.
|
||
((< row margin)
|
||
(with-selected-window window
|
||
(scroll-down 1)))))))))
|
||
|
||
;; Obtain the dragged text in region. When the loop was
|
||
;; skipped, value-selection remains nil.
|
||
(unless value-selection
|
||
(setq value-selection (funcall region-extract-function nil))
|
||
(when mouse-drag-and-drop-region-show-tooltip
|
||
(let ((text-size mouse-drag-and-drop-region-show-tooltip))
|
||
(setq text-tooltip
|
||
(if (and (integerp text-size)
|
||
(> (length value-selection) text-size))
|
||
(concat
|
||
(substring value-selection 0 (/ text-size 2))
|
||
"\n...\n"
|
||
(substring value-selection (- (/ text-size 2)) -1))
|
||
value-selection))))
|
||
|
||
;; Check if selected text is read-only.
|
||
(setq text-from-read-only
|
||
(or text-from-read-only
|
||
(catch 'loop
|
||
(dolist (bound (region-bounds))
|
||
(when (text-property-not-all
|
||
(car bound) (cdr bound) 'read-only nil)
|
||
(throw 'loop t)))))))
|
||
|
||
(when (and mouse-drag-and-drop-region-cross-program
|
||
(display-graphic-p)
|
||
(fboundp 'x-begin-drag)
|
||
(or (and (framep (posn-window (event-end event)))
|
||
(let ((location (posn-x-y (event-end event)))
|
||
(frame (posn-window (event-end event))))
|
||
(or (< (car location) 0)
|
||
(< (cdr location) 0)
|
||
(> (car location)
|
||
(frame-pixel-width frame))
|
||
(> (cdr location)
|
||
(frame-pixel-height frame)))))
|
||
(and (or (not drag-again-mouse-position)
|
||
(let ((mouse-position (mouse-absolute-pixel-position)))
|
||
(or (< 5 (abs (- (car drag-again-mouse-position)
|
||
(car mouse-position))))
|
||
(< 5 (abs (- (cdr drag-again-mouse-position)
|
||
(cdr mouse-position)))))))
|
||
(not (posn-window (event-end event))))))
|
||
(setq drag-again-mouse-position nil)
|
||
(gui-set-selection 'XdndSelection value-selection)
|
||
(let ((drag-action-or-frame
|
||
(condition-case nil
|
||
(x-begin-drag '("UTF8_STRING" "text/plain"
|
||
"text/plain;charset=utf-8"
|
||
"STRING" "TEXT" "COMPOUND_TEXT")
|
||
(if mouse-drag-and-drop-region-cut-when-buffers-differ
|
||
'XdndActionMove
|
||
'XdndActionCopy)
|
||
(posn-window (event-end event)) 'now
|
||
;; On platforms where we know
|
||
;; `return-frame' doesn't
|
||
;; work, allow dropping on
|
||
;; the drop frame.
|
||
(eq window-system 'haiku) t)
|
||
(quit nil))))
|
||
(when (framep drag-action-or-frame)
|
||
;; With some window managers `x-begin-drag'
|
||
;; returns a frame sooner than `mouse-position'
|
||
;; will return one, due to over-wide frame windows
|
||
;; being drawn by the window manager. To avoid
|
||
;; that, we just require the mouse move a few
|
||
;; pixels before beginning another cross-program
|
||
;; drag.
|
||
(setq drag-again-mouse-position
|
||
(mouse-absolute-pixel-position))
|
||
(throw 'drag-again nil))
|
||
|
||
(let ((min-char (point)))
|
||
(when (eq drag-action-or-frame 'XdndActionMove)
|
||
;; Remove the dragged text from source buffer like
|
||
;; operation `cut'.
|
||
(dolist (overlay mouse-drag-and-drop-overlays)
|
||
(when (< min-char (min (overlay-start overlay)
|
||
(overlay-end overlay)))
|
||
(setq min-char (min (overlay-start overlay)
|
||
(overlay-end overlay))))
|
||
(delete-region (overlay-start overlay)
|
||
(overlay-end overlay)))
|
||
(goto-char min-char)
|
||
(setq deactivate-mark t)
|
||
(setq drag-was-cross-program t)))
|
||
|
||
(when (eq drag-action-or-frame 'XdndActionCopy)
|
||
;; Set back the dragged text as region on source buffer
|
||
;; like operation `copy'.
|
||
(activate-mark)))
|
||
(throw 'cross-program-drag nil))
|
||
|
||
(setq window-to-paste (posn-window (event-end event)))
|
||
(setq point-to-paste (posn-point (event-end event)))
|
||
;; Set nil when target buffer is minibuffer.
|
||
(setq buffer-to-paste (let (buf)
|
||
(when (windowp window-to-paste)
|
||
(setq buf (window-buffer window-to-paste))
|
||
(when (not (minibufferp buf))
|
||
buf))))
|
||
(setq cursor-in-text-area (and window-to-paste
|
||
point-to-paste
|
||
buffer-to-paste))
|
||
|
||
(when cursor-in-text-area
|
||
;; Check if point under mouse is read-only.
|
||
(save-window-excursion
|
||
(select-window window-to-paste)
|
||
(setq point-to-paste-read-only
|
||
(or buffer-read-only
|
||
(get-text-property point-to-paste 'read-only))))
|
||
|
||
;; Check if "drag but negligible". Operation "drag but
|
||
;; negligible" is defined as drag-and-drop the text to
|
||
;; the original region. When modifier is pressed, the
|
||
;; text will be inserted to inside of the original
|
||
;; region.
|
||
;;
|
||
;; If the region is rectangular, check if the newly inserted
|
||
;; rectangular text would intersect the already selected
|
||
;; region. If it would, then set "drag-but-negligible" to t.
|
||
;; As a special case, allow dragging the region freely anywhere
|
||
;; to the left, as this will never trigger its contents to be
|
||
;; inserted into the overlays tracking it.
|
||
(setq drag-but-negligible
|
||
(and (eq (overlay-buffer (car mouse-drag-and-drop-overlays))
|
||
buffer-to-paste)
|
||
(if region-noncontiguous
|
||
(let ((dimensions (rectangle-dimensions start end))
|
||
(start-coordinates
|
||
(rectangle-position-as-coordinates start))
|
||
(point-to-paste-coordinates
|
||
(rectangle-position-as-coordinates
|
||
point-to-paste)))
|
||
(and (rectangle-intersect-p
|
||
start-coordinates dimensions
|
||
point-to-paste-coordinates dimensions)
|
||
(not (< (car point-to-paste-coordinates)
|
||
(car start-coordinates)))))
|
||
(and (<= (overlay-start
|
||
(car mouse-drag-and-drop-overlays))
|
||
point-to-paste)
|
||
(<= point-to-paste
|
||
(overlay-end
|
||
(car mouse-drag-and-drop-overlays))))))))
|
||
|
||
;; Show a tooltip.
|
||
(if mouse-drag-and-drop-region-show-tooltip
|
||
;; Don't use tooltip-show since it has side effects
|
||
;; which change the text properties, and
|
||
;; `text-tooltip' can potentially be the text which
|
||
;; will be pasted.
|
||
(mouse-drag-and-drop-region-display-tooltip text-tooltip)
|
||
(mouse-drag-and-drop-region-hide-tooltip))
|
||
|
||
;; Show cursor and highlight the original region.
|
||
(when mouse-drag-and-drop-region-show-cursor
|
||
;; Modify cursor even when point is out of frame.
|
||
(setq cursor-type (cond
|
||
((not cursor-in-text-area)
|
||
nil)
|
||
((or point-to-paste-read-only
|
||
drag-but-negligible)
|
||
'hollow)
|
||
(t
|
||
'bar)))
|
||
(when cursor-in-text-area
|
||
(dolist (overlay mouse-drag-and-drop-overlays)
|
||
(overlay-put overlay
|
||
'face 'mouse-drag-and-drop-region))
|
||
(deactivate-mark) ; Maintain region in other window.
|
||
(mouse-set-point event)))))))
|
||
|
||
;; Hide a tooltip.
|
||
(when mouse-drag-and-drop-region-show-tooltip (x-hide-tip))
|
||
|
||
;; Check if modifier was pressed on drop.
|
||
(setq no-modifier-on-drop
|
||
(not (member mouse-drag-and-drop-region (event-modifiers event))))
|
||
|
||
;; Check if event was "click".
|
||
(setq clicked (not value-selection))
|
||
|
||
;; Restore status on drag to outside of text-area or non-mouse input.
|
||
(when (or (not cursor-in-text-area)
|
||
(not (equal (event-basic-type event) mouse-button)))
|
||
(setq drag-but-negligible t
|
||
no-modifier-on-drop t))
|
||
|
||
;; Do not modify any buffers when event is "click",
|
||
;; "drag but negligible", or "drag to read-only".
|
||
(unless drag-was-cross-program
|
||
(let* ((mouse-drag-and-drop-region-cut-when-buffers-differ
|
||
(if no-modifier-on-drop
|
||
mouse-drag-and-drop-region-cut-when-buffers-differ
|
||
(not mouse-drag-and-drop-region-cut-when-buffers-differ)))
|
||
(wanna-paste-to-same-buffer (equal buffer-to-paste buffer))
|
||
(wanna-cut-on-same-buffer (and wanna-paste-to-same-buffer
|
||
no-modifier-on-drop))
|
||
(wanna-cut-on-other-buffer
|
||
(and (not wanna-paste-to-same-buffer)
|
||
mouse-drag-and-drop-region-cut-when-buffers-differ))
|
||
(cannot-paste (or point-to-paste-read-only
|
||
(when (or wanna-cut-on-same-buffer
|
||
wanna-cut-on-other-buffer)
|
||
text-from-read-only))))
|
||
|
||
(cond
|
||
;; Move point within region.
|
||
(clicked
|
||
(deactivate-mark)
|
||
(mouse-set-point event))
|
||
;; Undo operation. Set back the original text as region.
|
||
((or (and drag-but-negligible
|
||
no-modifier-on-drop)
|
||
cannot-paste)
|
||
;; Inform user either source or destination buffer cannot be modified.
|
||
(when (and (not drag-but-negligible)
|
||
cannot-paste)
|
||
(message "Buffer is read-only"))
|
||
|
||
;; Select source window back and restore region.
|
||
;; (set-window-point window point)
|
||
(select-window window)
|
||
(goto-char point)
|
||
(setq deactivate-mark nil)
|
||
(activate-mark)
|
||
(when region-noncontiguous
|
||
(rectangle-mark-mode)))
|
||
;; Modify buffers.
|
||
(t
|
||
;; * DESTINATION BUFFER::
|
||
;; Insert the text to destination buffer under mouse.
|
||
(select-window window-to-paste)
|
||
(setq window-exempt window-to-paste)
|
||
(goto-char point-to-paste)
|
||
(push-mark)
|
||
(insert-for-yank value-selection)
|
||
|
||
;; On success, set the text as region on destination buffer.
|
||
(when (not (equal (mark) (point)))
|
||
(setq deactivate-mark nil)
|
||
(activate-mark)
|
||
(when region-noncontiguous
|
||
(rectangle-mark-mode)))
|
||
|
||
;; * SOURCE BUFFER::
|
||
;; Set back the original text as region or delete the original
|
||
;; text, on source buffer.
|
||
(if wanna-paste-to-same-buffer
|
||
;; When source buffer and destination buffer are the same,
|
||
;; remove the original text.
|
||
(when no-modifier-on-drop
|
||
(let (deactivate-mark)
|
||
(dolist (overlay mouse-drag-and-drop-overlays)
|
||
(delete-region (overlay-start overlay)
|
||
(overlay-end overlay)))))
|
||
;; When source buffer and destination buffer are different,
|
||
;; keep (set back the original text as region) or remove the
|
||
;; original text.
|
||
(select-window window) ; Select window with source buffer.
|
||
(goto-char point) ; Move point to the original text on source buffer.
|
||
|
||
(if mouse-drag-and-drop-region-cut-when-buffers-differ
|
||
;; Remove the dragged text from source buffer like
|
||
;; operation `cut'.
|
||
(dolist (overlay mouse-drag-and-drop-overlays)
|
||
(delete-region (overlay-start overlay)
|
||
(overlay-end overlay)))
|
||
;; Set back the dragged text as region on source buffer
|
||
;; like operation `copy'.
|
||
(activate-mark))
|
||
(select-window window-to-paste))))))))
|
||
|
||
(when was-tooltip-mode
|
||
(tooltip-mode 1))
|
||
|
||
;; Clean up.
|
||
(dolist (overlay mouse-drag-and-drop-overlays)
|
||
(delete-overlay overlay))
|
||
|
||
;; Restore old states but for the window where the drop
|
||
;; occurred. Restore cursor types for all windows.
|
||
(dolist (state states)
|
||
(let ((window (car state)))
|
||
(when (and window-exempt
|
||
(not (eq window window-exempt)))
|
||
(set-window-start window (nth 1 state) 'noforce)
|
||
(set-marker (nth 1 state) nil)
|
||
;; If window is selected, the following automatically sets
|
||
;; point for that window's buffer.
|
||
(set-window-point window (nth 2 state))
|
||
(set-marker (nth 2 state) nil))
|
||
(with-current-buffer (window-buffer window)
|
||
(setq cursor-type (nth 3 state))))))))
|
||
|
||
|
||
;;; Bindings for mouse commands.
|
||
|
||
(global-set-key [down-mouse-1] #'mouse-drag-region)
|
||
(global-set-key [mouse-1] #'mouse-set-point)
|
||
(global-set-key [drag-mouse-1] #'mouse-set-region)
|
||
|
||
(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 [header-line down-mouse-1] #'mouse-drag-header-line)
|
||
(global-set-key [header-line mouse-1] #'mouse-select-window)
|
||
(global-set-key [tab-line down-mouse-1] #'mouse-drag-tab-line)
|
||
(global-set-key [tab-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 [mode-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 [horizontal-scroll-bar C-mouse-2] #'mouse-split-window-horizontally)
|
||
(global-set-key [vertical-line down-mouse-1] #'mouse-drag-vertical-line)
|
||
(global-set-key [vertical-line mouse-1] #'mouse-select-window)
|
||
(global-set-key [vertical-line C-mouse-2] #'mouse-split-window-vertically)
|
||
(global-set-key [right-divider down-mouse-1] #'mouse-drag-vertical-line)
|
||
(global-set-key [right-divider mouse-1] #'ignore)
|
||
(global-set-key [right-divider C-mouse-2] #'mouse-split-window-vertically)
|
||
(global-set-key [bottom-divider down-mouse-1] #'mouse-drag-mode-line)
|
||
(global-set-key [bottom-divider mouse-1] #'ignore)
|
||
(global-set-key [bottom-divider C-mouse-2] #'mouse-split-window-horizontally)
|
||
(global-set-key [left-edge down-mouse-1] #'mouse-drag-left-edge)
|
||
(global-set-key [left-edge mouse-1] #'ignore)
|
||
(global-set-key [top-left-corner down-mouse-1] #'mouse-drag-top-left-corner)
|
||
(global-set-key [top-left-corner mouse-1] #'ignore)
|
||
(global-set-key [top-edge down-mouse-1] #'mouse-drag-top-edge)
|
||
(global-set-key [top-edge mouse-1] #'ignore)
|
||
(global-set-key [top-right-corner down-mouse-1] #'mouse-drag-top-right-corner)
|
||
(global-set-key [top-right-corner mouse-1] #'ignore)
|
||
(global-set-key [right-edge down-mouse-1] #'mouse-drag-right-edge)
|
||
(global-set-key [right-edge mouse-1] #'ignore)
|
||
(global-set-key [bottom-right-corner down-mouse-1] #'mouse-drag-bottom-right-corner)
|
||
(global-set-key [bottom-right-corner mouse-1] #'ignore)
|
||
(global-set-key [bottom-edge down-mouse-1] #'mouse-drag-bottom-edge)
|
||
(global-set-key [bottom-edge mouse-1] #'ignore)
|
||
(global-set-key [bottom-left-corner down-mouse-1] #'mouse-drag-bottom-left-corner)
|
||
(global-set-key [bottom-left-corner mouse-1] #'ignore)
|
||
|
||
(provide 'mouse)
|
||
|
||
;;; mouse.el ends here
|