code.delx.au - gnu-emacs/blob - lisp/term/w32-win.el

   1 ;;; w32-win.el --- parse switches controlling interface with W32 window system -*- lexical-binding: t -*-
   2
   3 ;; Copyright (C) 1993-1994, 2001-2012  Free Software Foundation, Inc.
   4
   5 ;; Author: Kevin Gallo
   6 ;; Keywords: terminals
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software: you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation, either version 3 of the License, or
  13 ;; (at your option) any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  22
  23 ;;; Commentary:
  24
  25 ;; w32-win.el:  this file is loaded from ../lisp/startup.el when it recognizes
  26 ;; that W32 windows are to be used.  Command line switches are parsed and those
  27 ;; pertaining to W32 are processed and removed from the command line.  The
  28 ;; W32 display is opened and hooks are set for popping up the initial window.
  29
  30 ;; startup.el will then examine startup files, and eventually call the hooks
  31 ;; which create the first window (s).
  32
  33 ;;; Code:
  34 \f
  35
  36 ;; These are the standard X switches from the Xt Initialize.c file of
  37 ;; Release 4.
  38
  39 ;; Command line         Resource Manager string
  40
  41 ;; +rv                  *reverseVideo
  42 ;; +synchronous         *synchronous
  43 ;; -background          *background
  44 ;; -bd                  *borderColor
  45 ;; -bg                  *background
  46 ;; -bordercolor         *borderColor
  47 ;; -borderwidth         .borderWidth
  48 ;; -bw                  .borderWidth
  49 ;; -display             .display
  50 ;; -fg                  *foreground
  51 ;; -fn                  *font
  52 ;; -font                *font
  53 ;; -foreground          *foreground
  54 ;; -geometry            .geometry
  55 ;; -i                   .iconType
  56 ;; -itype               .iconType
  57 ;; -iconic              .iconic
  58 ;; -name                .name
  59 ;; -reverse             *reverseVideo
  60 ;; -rv                  *reverseVideo
  61 ;; -selectionTimeout    .selectionTimeout
  62 ;; -synchronous         *synchronous
  63 ;; -xrm
  64
  65 ;; An alist of X options and the function which handles them.  See
  66 ;; ../startup.el.
  67
  68 ;; (if (not (eq window-system 'w32))
  69 ;;     (error "%s: Loading w32-win.el but not compiled for w32" (invocation-name)))
  70
  71 (eval-when-compile (require 'cl-lib))
  72 (require 'frame)
  73 (require 'mouse)
  74 (require 'scroll-bar)
  75 (require 'faces)
  76 (require 'select)
  77 (require 'menu-bar)
  78 (require 'dnd)
  79 (require 'w32-vars)
  80
  81 ;; Keep an obsolete alias for w32-focus-frame and w32-select-font in case
  82 ;; they are used by code outside Emacs.
  83 (define-obsolete-function-alias 'w32-focus-frame 'x-focus-frame "23.1")
  84 (declare-function x-select-font "w32font.c"
  85                   (&optional frame exclude-proportional))
  86 (define-obsolete-function-alias 'w32-select-font 'x-select-font "23.1")
  87
  88 (defvar w32-color-map) ;; defined in w32fns.c
  89 (make-obsolete 'w32-default-color-map nil "24.1")
  90
  91 (declare-function w32-send-sys-command "w32fns.c")
  92 (declare-function set-message-beep "w32console.c")
  93
  94 ;; Conditional on new-fontset so bootstrapping works on non-GUI compiles
  95 (if (fboundp 'new-fontset)
  96     (require 'fontset))
  97
  98 ;; The following definition is used for debugging scroll bar events.
  99 ;(defun w32-handle-scroll-bar-event (event) (interactive "e") (princ event))
 100
 101 ;; (defun w32-drag-n-drop-debug (event)
 102 ;;   "Print the drag-n-drop EVENT in a readable form."
 103 ;;   (interactive "e")
 104 ;;   (princ event))
 105
 106 (defun w32-handle-dropped-file (window file-name)
 107   (let ((f (if (eq system-type 'cygwin)
 108                (cygwin-convert-path-from-windows file-name t)
 109              (subst-char-in-string ?\\ ?/ file-name)))
 110         (coding (or file-name-coding-system
 111                     default-file-name-coding-system)))
 112
 113     (setq file-name
 114           (mapconcat 'url-hexify-string
 115                      (split-string (encode-coding-string f coding)
 116                                    "/")
 117                      "/")))
 118                 (dnd-handle-one-url window 'private
 119                                     (concat "file:" file-name)))
 120
 121 (defun w32-drag-n-drop (event &optional new-frame)
 122   "Edit the files listed in the drag-n-drop EVENT.
 123 Switch to a buffer editing the last file dropped."
 124   (interactive "e")
 125   (save-excursion
 126     ;; Make sure the drop target has positive co-ords
 127     ;; before setting the selected frame - otherwise it
 128     ;; won't work.  <skx@tardis.ed.ac.uk>
 129     (let* ((window (posn-window (event-start event)))
 130            (coords (posn-x-y (event-start event)))
 131            (x (car coords))
 132            (y (cdr coords)))
 133       (if (and (> x 0) (> y 0))
 134           (set-frame-selected-window nil window))
 135
 136       (when new-frame
 137         (select-frame (make-frame)))
 138       (raise-frame)
 139       (setq window (selected-window))
 140
 141       (mapc (apply-partially #'w32-handle-dropped-file window)
 142             (car (cdr (cdr event)))))))
 143
 144 (defun w32-drag-n-drop-other-frame (event)
 145   "Edit the files listed in the drag-n-drop EVENT, in other frames.
 146 May create new frames, or reuse existing ones.  The frame editing
 147 the last file dropped is selected."
 148   (interactive "e")
 149   (w32-drag-n-drop event t))
 150
 151 ;; Bind the drag-n-drop event.
 152 (global-set-key [drag-n-drop] 'w32-drag-n-drop)
 153 (global-set-key [C-drag-n-drop] 'w32-drag-n-drop-other-frame)
 154
 155 ;; Keyboard layout/language change events
 156 ;; For now ignore language-change events; in the future
 157 ;; we should switch the Emacs Input Method to match the
 158 ;; new layout/language selected by the user.
 159 (global-set-key [language-change] 'ignore)
 160
 161 (defvar x-resource-name)
 162
 163 \f
 164 ;;;; Function keys
 165
 166  ;;; make f10 activate the real menubar rather than the mini-buffer menu
 167  ;;; navigation feature.
 168  (defun w32-menu-bar-open (&optional frame)
 169    "Start key navigation of the menu bar in FRAME.
 170
 171 This initially activates the first menu-bar item, and you can then navigate
 172 with the arrow keys, select a menu entry with the Return key or cancel with
 173 the Escape key.  If FRAME has no menu bar, this function does nothing.
 174
 175 If FRAME is nil or not given, use the selected frame.
 176 If FRAME does not have the menu bar enabled, display a text menu using
 177 `tmm-menubar'."
 178    (interactive "i")
 179    (if menu-bar-mode
 180        (w32-send-sys-command ?\xf100 frame)
 181      (with-selected-frame (or frame (selected-frame))
 182        (tmm-menubar))))
 183 \f
 184
 185 ;; W32 systems have different fonts than commonly found on X, so
 186 ;; we define our own standard fontset here.
 187 (defvar w32-standard-fontset-spec
 188  "-*-Courier New-normal-r-*-*-13-*-*-*-c-*-fontset-standard"
 189  "String of fontset spec of the standard fontset.
 190 This defines a fontset consisting of the Courier New variations for
 191 European languages which are distributed with Windows as
 192 \"Multilanguage Support\".
 193
 194 See the documentation of `create-fontset-from-fontset-spec' for the format.")
 195
 196 (defun x-win-suspend-error ()
 197   "Report an error when a suspend is attempted."
 198   (error "Suspending an Emacs running under W32 makes no sense"))
 199
 200 (defvar dynamic-library-alist)
 201 (defvar libpng-version)                 ; image.c #ifdef HAVE_NTGUI
 202
 203 ;;; Set default known names for external libraries
 204 (setq dynamic-library-alist
 205       (list
 206        '(xpm "libxpm.dll" "xpm4.dll" "libXpm-nox4.dll")
 207        ;; Versions of libpng 1.4.x and later are incompatible with
 208        ;; earlier versions.  Set up the list of libraries according to
 209        ;; the version we were compiled against.  (If we were compiled
 210        ;; without PNG support, libpng-version's value is -1.)
 211        (if (>= libpng-version 10400)
 212            ;; libpng14-14.dll is libpng 1.4.3 from GTK+
 213            '(png "libpng14-14.dll" "libpng14.dll")
 214          '(png "libpng12d.dll" "libpng12.dll" "libpng3.dll" "libpng.dll"
 215                ;; these are libpng 1.2.8 from GTK+
 216                "libpng13d.dll" "libpng13.dll"))
 217        '(jpeg "jpeg62.dll" "libjpeg.dll" "jpeg-62.dll" "jpeg.dll")
 218        '(tiff "libtiff3.dll" "libtiff.dll")
 219        '(gif "giflib4.dll" "libungif4.dll" "libungif.dll")
 220        '(svg "librsvg-2-2.dll")
 221        '(gdk-pixbuf "libgdk_pixbuf-2.0-0.dll")
 222        '(glib "libglib-2.0-0.dll")
 223        '(gobject "libgobject-2.0-0.dll")
 224        '(gnutls "libgnutls-28.dll" "libgnutls-26.dll")
 225        '(libxml2 "libxml2-2.dll" "libxml2.dll")))
 226
 227 ;;; multi-tty support
 228 (defvar w32-initialized nil
 229   "Non-nil if the w32 window system has been initialized.")
 230
 231 (declare-function x-open-connection "w32fns.c"
 232                   (display &optional xrm-string must-succeed))
 233 (declare-function create-fontset-from-fontset-spec "fontset"
 234                   (fontset-spec &optional style-variant noerror))
 235 (declare-function create-fontset-from-x-resource "fontset" ())
 236 (declare-function x-get-resource "frame.c"
 237                   (attribute class &optional component subclass))
 238 (declare-function x-handle-args "common-win" (args))
 239 (declare-function x-parse-geometry "frame.c" (string))
 240 (defvar x-command-line-resources)
 241
 242 (defun w32-initialize-window-system ()
 243   "Initialize Emacs for W32 GUI frames."
 244   (cl-assert (not w32-initialized))
 245
 246   ;; Do the actual Windows setup here; the above code just defines
 247   ;; functions and variables that we use now.
 248
 249   (setq command-line-args (x-handle-args command-line-args))
 250
 251   ;; Make sure we have a valid resource name.
 252   (or (stringp x-resource-name)
 253       (setq x-resource-name
 254             ;; Change any . or * characters in x-resource-name to hyphens,
 255             ;; so as not to choke when we use it in X resource queries.
 256             (replace-regexp-in-string "[.*]" "-" (invocation-name))))
 257
 258   (x-open-connection "w32" x-command-line-resources
 259                      ;; Exit with a fatal error if this fails and we
 260                      ;; are the initial display
 261                      (eq initial-window-system 'w32))
 262
 263   ;; Create the default fontset.
 264   (create-default-fontset)
 265   ;; Create the standard fontset.
 266   (condition-case err
 267       (create-fontset-from-fontset-spec w32-standard-fontset-spec t)
 268     (error (display-warning
 269             'initialization
 270             (format "Creation of the standard fontset failed: %s" err)
 271             :error)))
 272   ;; Create fontset specified in X resources "Fontset-N" (N is 0, 1,...).
 273   (create-fontset-from-x-resource)
 274
 275   ;; Apply a geometry resource to the initial frame.  Put it at the end
 276   ;; of the alist, so that anything specified on the command line takes
 277   ;; precedence.
 278   (let* ((res-geometry (x-get-resource "geometry" "Geometry"))
 279          parsed)
 280     (if res-geometry
 281         (progn
 282           (setq parsed (x-parse-geometry res-geometry))
 283           ;; If the resource specifies a position,
 284           ;; call the position and size "user-specified".
 285           (if (or (assq 'top parsed) (assq 'left parsed))
 286               (setq parsed (cons '(user-position . t)
 287                                  (cons '(user-size . t) parsed))))
 288           ;; All geometry parms apply to the initial frame.
 289           (setq initial-frame-alist (append initial-frame-alist parsed))
 290           ;; The size parms apply to all frames.
 291           (if (and (assq 'height parsed)
 292                    (not (assq 'height default-frame-alist)))
 293               (setq default-frame-alist
 294                     (cons (cons 'height (cdr (assq 'height parsed)))
 295                           default-frame-alist))
 296           (if (and (assq 'width parsed)
 297                    (not (assq 'width default-frame-alist)))
 298               (setq default-frame-alist
 299                     (cons (cons 'width (cdr (assq 'width parsed)))
 300                           default-frame-alist)))))))
 301
 302   ;; Check the reverseVideo resource.
 303   (let ((case-fold-search t))
 304     (let ((rv (x-get-resource "reverseVideo" "ReverseVideo")))
 305       (if (and rv (string-match "^\\(true\\|yes\\|on\\)$" rv))
 306           (setq default-frame-alist
 307                 (cons '(reverse . t) default-frame-alist)))))
 308
 309   ;; Don't let Emacs suspend under Windows.
 310   (add-hook 'suspend-hook 'x-win-suspend-error)
 311
 312   ;; Turn off window-splitting optimization; w32 is usually fast enough
 313   ;; that this is only annoying.
 314   (setq split-window-keep-point t)
 315
 316   ;; W32 expects the menu bar cut and paste commands to use the clipboard.
 317   (menu-bar-enable-clipboard)
 318
 319   ;; Don't show the frame name; that's redundant.
 320   (setq-default mode-line-frame-identification "  ")
 321
 322   ;; Set to a system sound if you want a fancy bell.
 323   (set-message-beep 'ok)
 324   (x-apply-session-resources)
 325   (setq w32-initialized t))
 326
 327 (add-to-list 'display-format-alist '("\\`w32\\'" . w32))
 328 (add-to-list 'handle-args-function-alist '(w32 . x-handle-args))
 329 (add-to-list 'frame-creation-function-alist '(w32 . x-create-frame-with-faces))
 330 (add-to-list 'window-system-initialization-alist '(w32 . w32-initialize-window-system))
 331
 332 (provide 'w32-win)
 333
 334 ;;; w32-win.el ends here