code.delx.au - gnu-emacs/blob - lisp/net/browse-url.el

   1 ;;; browse-url.el --- pass a URL to a WWW browser
   2
   3 ;; Copyright (C) 1995, 96, 97, 98, 99, 2000, 2001
   4 ;;   Free Software Foundation, Inc.
   5
   6 ;; Author: Denis Howe <dbh@doc.ic.ac.uk>
   7 ;; Maintainer: Dave Love <fx@gnu.org>
   8 ;; Created: 03 Apr 1995
   9 ;; Keywords: hypertext, hypermedia, mouse
  10
  11 ;; This file is part of GNU Emacs.
  12
  13 ;; GNU Emacs is free software; you can redistribute it and/or modify
  14 ;; it under the terms of the GNU General Public License as published by
  15 ;; the Free Software Foundation; either version 2, or (at your option)
  16 ;; any later version.
  17
  18 ;; GNU Emacs is distributed in the hope that it will be useful,
  19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ;; GNU General Public License for more details.
  22
  23 ;; You should have received a copy of the GNU General Public License
  24 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  26 ;; Boston, MA 02111-1307, USA.
  27
  28 ;;; Commentary:
  29
  30 ;; This package provides functions which read a URL (Uniform Resource
  31 ;; Locator) from the minibuffer, defaulting to the URL around point,
  32 ;; and ask a World-Wide Web browser to load it.  It can also load the
  33 ;; URL associated with the current buffer.  Different browsers use
  34 ;; different methods of remote control so there is one function for
  35 ;; each supported browser.  If the chosen browser is not running, it
  36 ;; is started.  Currently there is support for the following browsers,
  37 ;; some of them probably now obsolete:
  38
  39 ;; Function                           Browser     Earliest version
  40 ;; browse-url-netscape                Netscape    1.1b1
  41 ;; browse-url-mosaic                  XMosaic/mMosaic <= 2.4
  42 ;; browse-url-cci                     XMosaic     2.5
  43 ;; browse-url-w3                      w3          0
  44 ;; browse-url-w3-gnudoit              w3 remotely
  45 ;; browse-url-iximosaic               IXI Mosaic  ?
  46 ;; browse-url-lynx-*                  Lynx           0
  47 ;; browse-url-grail                   Grail       0.3b1
  48 ;; browse-url-mmm                     MMM         ?
  49 ;; browse-url-generic                 arbitrary
  50 ;; browse-url-default-windows-browser MS-Windows browser
  51 ;; browse-url-gnome-moz               GNOME interface to Mozilla
  52 ;; browse-url-kde                     KDE konqueror (kfm)
  53
  54 ;; [A version of the Netscape browser is now free software
  55 ;; <URL:http://www.mozilla.org/>, albeit not GPLed, so it is
  56 ;; reasonable to have that as the default.]
  57
  58 ;; Note that versions of Netscape before 1.1b1 did not have remote
  59 ;; control.  <URL:http://www.netscape.com/newsref/std/x-remote.html>.
  60
  61 ;; Browsers can cache Web pages so it may be necessary to tell them to
  62 ;; reload the current page if it has changed (e.g. if you have edited
  63 ;; it).  There is currently no perfect automatic solution to this.
  64
  65 ;; Netscape allows you to specify the id of the window you want to
  66 ;; control but which window DO you want to control and how do you
  67 ;; discover its id?
  68
  69 ;; If using XMosaic before version 2.5, check the definition of
  70 ;; browse-url-usr1-signal below.
  71 ;; <URL:http://www.ncsa.uiuc.edu/SDG/Software/XMosaic/remote-control.html>
  72
  73 ;; XMosaic version 2.5 introduced Common Client Interface allowing you
  74 ;; to control mosaic through Unix sockets.
  75 ;; <URL:http://www.ncsa.uiuc.edu/SDG/Software/XMosaic/CCI/cci-spec.html>
  76
  77 ;; William M. Perry's excellent "w3" WWW browser for
  78 ;; Emacs <URL:ftp://cs.indiana.edu/pub/elisp/w3/>
  79 ;; has a function w3-follow-url-at-point, but that
  80 ;; doesn't let you edit the URL like browse-url.
  81 ;; The `gnuserv' package that can be used to control it in another
  82 ;; Emacs process is available from
  83 ;; <URL:ftp://ftp.splode.com/pub/users/friedman/packages/>.
  84
  85 ;; Grail is the freely available WWW browser implemented in Python, a
  86 ;; cool object-oriented freely available interpreted language.  Grail
  87 ;; 0.3b1 was the first version to have remote control as distributed.
  88 ;; For more information on Grail see
  89 ;; <URL:http://grail.cnri.reston.va.us/> and for more information on
  90 ;; Python see <url:http://www.python.org/>.  Grail support in
  91 ;; browse-url.el written by Barry Warsaw <bwarsaw@python.org>.
  92
  93 ;; MMM is a semi-free WWW browser implemented in Objective Caml, an
  94 ;; interesting impure functional programming language.  See
  95 ;; <URL:http://pauillac.inria.fr/%7Erouaix/mmm/>.
  96
  97 ;; Lynx is now distributed by the FSF.  See also
  98 ;; <URL:http://lynx.browser.org/>.
  99
 100 ;; Free graphical browsers that could be used by `browse-url-generic'
 101 ;; include Chimera <URL:ftp://ftp.cs.unlv.edu/pub/chimera> and
 102 ;; <URL:http://www.unlv.edu/chimera/>, Arena
 103 ;; <URL:ftp://ftp.yggdrasil.com/pub/dist/web/arena> and Amaya
 104 ;; <URL:ftp://ftp.w3.org/pub/amaya>.  mMosaic
 105 ;; <URL:ftp://sig.enst.fr/pub/multicast/mMosaic/>,
 106 ;; <URL:http://sig.enst.fr/~dauphin/mMosaic/> (with development
 107 ;; support for Java applets and multicast) can be used like Mosaic by
 108 ;; setting `browse-url-mosaic-program' appropriately.
 109
 110 ;; I [Denis Howe, not Dave Love] recommend Nelson Minar
 111 ;; <nelson@santafe.edu>'s excellent html-helper-mode.el for editing
 112 ;; HTML and thank Nelson for his many useful comments on this code.
 113 ;; <URL:http://www.santafe.edu/%7Enelson/hhm-beta/>
 114
 115 ;; See also hm--html-menus <URL:http://www.tnt.uni-hannover.de/%7Emuenkel/
 116 ;; software/own/hm--html-menus/>.  For composing correct HTML see also
 117 ;; PSGML the general SGML structure editor package
 118 ;; <URL:ftp://ftp.lysator.liu.se/pub/sgml>; hm--html-menus can be used
 119 ;; with this.
 120
 121 ;; This package generalises function html-previewer-process in Marc
 122 ;; Andreessen's html-mode (LCD modes/html-mode.el.Z).  See also the
 123 ;; ffap.el package.  The huge hyperbole package also contains similar
 124 ;; functions.
 125
 126 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 127 ;; Help!
 128
 129 ;; Can you write and test some code for the Macintrash and Windoze
 130 ;; Netscape remote control APIs?  (See the URL above).
 131
 132 ;; Do any other browsers have remote control?
 133
 134 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 135 ;; Usage
 136
 137 ;; To display the URL at or before point:
 138 ;; M-x browse-url-at-point RET
 139 ;; or, similarly but with the opportunity to edit the URL extracted from
 140 ;; the buffer, use:
 141 ;; M-x browse-url
 142
 143 ;; To display a URL by shift-clicking on it, put this in your ~/.emacs
 144 ;; file:
 145 ;;      (global-set-key [S-mouse-2] 'browse-url-at-mouse)
 146 ;; (Note that using Shift-mouse-1 is not desirable because
 147 ;; that event has a standard meaning in Emacs.)
 148
 149 ;; To display the current buffer in a web browser:
 150 ;; M-x browse-url-of-buffer RET
 151
 152 ;; To display the current region in a web browser:
 153 ;; M-x browse-url-of-region RET
 154
 155 ;; In Dired, to display the file named on the current line:
 156 ;; M-x browse-url-of-dired-file RET
 157
 158 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 159 ;; Customisation (~/.emacs)
 160
 161 ;; To see what variables are available for customization, type
 162 ;; `M-x set-variable browse-url TAB'.  Better, use
 163 ;; `M-x customize-group browse-url'.
 164
 165 ;; Bind the browse-url commands to keys with the `C-c C-z' prefix
 166 ;; (as used by html-helper-mode):
 167 ;;      (global-set-key "\C-c\C-z." 'browse-url-at-point)
 168 ;;      (global-set-key "\C-c\C-zb" 'browse-url-of-buffer)
 169 ;;      (global-set-key "\C-c\C-zr" 'browse-url-of-region)
 170 ;;      (global-set-key "\C-c\C-zu" 'browse-url)
 171 ;;      (global-set-key "\C-c\C-zv" 'browse-url-of-file)
 172 ;;      (add-hook 'dired-mode-hook
 173 ;;                (lambda ()
 174 ;;                   (local-set-key "\C-c\C-zf" 'browse-url-of-dired-file)))
 175
 176 ;; Browse URLs in mail messages under RMAIL by clicking mouse-2:
 177 ;;      (add-hook 'rmail-mode-hook (lambda () ; rmail-mode startup
 178 ;;        (define-key rmail-mode-map [mouse-2] 'browse-url-at-mouse)))
 179 ;; Alternatively, add `goto-address' to `rmail-show-message-hook'.
 180
 181 ;; Gnus provides a standard feature to activate URLs in article
 182 ;; buffers for invocation of browse-url.
 183
 184 ;; Use the Emacs w3 browser when not running under X11:
 185 ;;      (or (eq window-system 'x)
 186 ;;          (setq browse-url-browser-function 'browse-url-w3))
 187
 188 ;; To always save modified buffers before displaying the file in a browser:
 189 ;;      (setq browse-url-save-file t)
 190
 191 ;; To get round the Netscape caching problem, you could EITHER have
 192 ;; write-file in html-helper-mode make Netscape reload the document:
 193 ;;
 194 ;;      (autoload 'browse-url-netscape-reload "browse-url"
 195 ;;        "Ask a WWW browser to redisplay the current file." t)
 196 ;;      (add-hook 'html-helper-mode-hook
 197 ;;                (lambda ()
 198 ;;                   (add-hook 'local-write-file-hooks
 199 ;;                             (lambda ()
 200 ;;                                (let ((local-write-file-hooks))
 201 ;;                                  (save-buffer))
 202 ;;                                (browse-url-netscape-reload)
 203 ;;                                t)                    ; => file written by hook
 204 ;;                             t)))                     ; append to l-w-f-hooks
 205 ;;
 206 ;; OR have browse-url-of-file ask Netscape to load and then reload the
 207 ;; file:
 208 ;;
 209 ;;      (add-hook 'browse-url-of-file-hook 'browse-url-netscape-reload)
 210
 211 ;; You may also want to customise browse-url-netscape-arguments, e.g.
 212 ;;      (setq browse-url-netscape-arguments '("-install"))
 213 ;;
 214 ;; or similarly for the other browsers.
 215
 216 ;; To invoke different browsers for different URLs:
 217 ;;      (setq browse-url-browser-function '(("^mailto:" . browse-url-mail)
 218 ;;                                          ("." . browse-url-netscape)))
 219
 220 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 221 ;;; Code:
 222
 223 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 224 ;; Variables
 225
 226 (eval-when-compile (require 'thingatpt)
 227                    (require 'term)
 228                    (require 'dired)
 229                    (require 'w3-auto nil t))
 230
 231 (defgroup browse-url nil
 232   "Use a web browser to look at a URL."
 233   :prefix "browse-url-"
 234   :link '(emacs-commentary-link "browse-url")
 235   :group 'hypermedia)
 236
 237 ;;;###autoload
 238 (defcustom browse-url-browser-function
 239   (if (memq system-type '(windows-nt ms-dos))
 240       'browse-url-default-windows-browser
 241     'browse-url-netscape)
 242   "*Function to display the current buffer in a WWW browser.
 243 This is used by the `browse-url-at-point', `browse-url-at-mouse', and
 244 `browse-url-of-file' commands.
 245
 246 If the value is not a function it should be a list of pairs
 247 \(REGEXP . FUNCTION).  In this case the function called will be the one
 248 associated with the first REGEXP which matches the current URL.  The
 249 function is passed the URL and any other args of `browse-url'.  The last
 250 regexp should probably be \".\" to specify a default browser."
 251   :type '(choice
 252           (function-item :tag "Emacs W3" :value  browse-url-w3)
 253           (function-item :tag "W3 in another Emacs via `gnudoit'"
 254                          :value  browse-url-w3-gnudoit)
 255           (function-item :tag "Netscape" :value  browse-url-netscape)
 256           (function-item :tag "Mosaic" :value  browse-url-mosaic)
 257           (function-item :tag "Mosaic using CCI" :value  browse-url-cci)
 258           (function-item :tag "IXI Mosaic" :value  browse-url-iximosaic)
 259           (function-item :tag "Lynx in an xterm window"
 260                          :value browse-url-lynx-xterm)
 261           (function-item :tag "Lynx in an Emacs window"
 262                          :value browse-url-lynx-emacs)
 263           (function-item :tag "Grail" :value  browse-url-grail)
 264           (function-item :tag "MMM" :value  browse-url-mmm)
 265           (function-item :tag "KDE" :value browse-url-kde)
 266           (function-item :tag "Specified by `Browse Url Generic Program'"
 267                          :value browse-url-generic)
 268           (function-item :tag "Default Windows browser"
 269                          :value browse-url-default-windows-browser)
 270           (function-item :tag "GNOME invoking Mozilla"
 271                          :value browse-url-gnome-moz)
 272           (function :tag "Your own function")
 273           (alist :tag "Regexp/function association list"
 274                  :key-type regexp :value-type function))
 275   :version "21.1"
 276   :group 'browse-url)
 277
 278 (defcustom browse-url-netscape-program "netscape"
 279   ;; Info about netscape-remote from Karl Berry.
 280   "The name by which to invoke Netscape.
 281
 282 The free program `netscape-remote' from
 283 <URL:http://home.netscape.com/newsref/std/remote.c> is said to start
 284 up very much quicker than `netscape'.  Reported to compile on a GNU
 285 system, given vroot.h from the same directory, with cc flags
 286  -DSTANDALONE -L/usr/X11R6/lib -lXmu -lX11."
 287   :type 'string
 288   :group 'browse-url)
 289
 290 (defcustom browse-url-netscape-arguments nil
 291   "A list of strings to pass to Netscape as arguments."
 292   :type '(repeat (string :tag "Argument"))
 293   :group 'browse-url)
 294
 295 (defcustom browse-url-netscape-startup-arguments browse-url-netscape-arguments
 296   "A list of strings to pass to Netscape when it starts up.
 297 Defaults to the value of `browse-url-netscape-arguments' at the time
 298 `browse-url' is loaded."
 299   :type '(repeat (string :tag "Argument"))
 300   :group 'browse-url)
 301
 302 ;;;###autoload
 303 (defcustom browse-url-new-window-flag nil
 304   "*If non-nil, always open a new browser window with appropriate browsers.
 305 Passing an interactive argument to \\[browse-url], or specific browser
 306 commands reverses the effect of this variable.  Requires Netscape version
 307 1.1N or later or XMosaic version 2.5 or later if using those browsers."
 308   :type 'boolean
 309   :group 'browse-url)
 310
 311 ;;;###autoload
 312 (defcustom browse-url-netscape-display nil
 313   "*The X display for running Netscape, if not same as Emacs'."
 314   :type '(choice string (const :tag "Default" nil))
 315   :group 'browse-url)
 316
 317 (defcustom browse-url-mosaic-program "xmosaic"
 318   "The name by which to invoke Mosaic (or mMosaic)."
 319   :type 'string
 320   :version "20.3"
 321   :group 'browse-url)
 322
 323 (defcustom browse-url-mosaic-arguments nil
 324   "A list of strings to pass to Mosaic as arguments."
 325   :type '(repeat (string :tag "Argument"))
 326   :group 'browse-url)
 327
 328 (defcustom browse-url-filename-alist
 329   (\`                                   ; Backquote syntax won't work.
 330    (("^/\\(ftp@\\|anonymous@\\)?\\([^:]+\\):/*" . "ftp://\\2/")
 331     ;; The above loses the username to avoid the browser prompting for
 332     ;; it in anonymous cases.  If it's not anonymous the next regexp
 333     ;; applies.
 334     ("^/\\([^:@]+@\\)?\\([^:]+\\):/*" . "ftp://\\1\\2/")
 335     (,@ (if (memq system-type '(windows-nt ms-dos))
 336             '(("^\\([a-zA-Z]:\\)[\\/]" . "file:\\1/")
 337               ("^[\\/][\\/]+" . "file://"))))
 338     ("^/+" . "file:/")))
 339   "An alist of (REGEXP . STRING) pairs used by `browse-url-of-file'.
 340 Any substring of a filename matching one of the REGEXPs is replaced by
 341 the corresponding STRING using `replace-match', not treating STRING
 342 literally.  All pairs are applied in the order given.  The default
 343 value converts ange-ftp/EFS-style paths into ftp URLs and prepends
 344 `file:' to any path beginning with `/'.
 345
 346 For example, adding to the default a specific translation of an ange-ftp
 347 address to an HTTP URL:
 348
 349     (setq browse-url-filename-alist
 350           '((\"/webmaster@webserver:/home/www/html/\" .
 351              \"http://www.acme.co.uk/\")
 352             (\"^/\\(ftp@\\|anonymous@\\)?\\([^:]+\\):/*\" . \"ftp://\\2/\")
 353             (\"^/\\([^:@]+@\\)?\\([^:]+\\):/*\" . \"ftp://\\1\\2/\")
 354             (\"^/+\" . \"file:/\")))
 355 "
 356   :type '(repeat (cons :format "%v"
 357                        (regexp :tag "Regexp")
 358                        (string :tag "Replacement")))
 359   :version "20.3"
 360   :group 'browse-url)
 361
 362 ;;;###autoload
 363 (defcustom browse-url-save-file nil
 364   "*If non-nil, save the buffer before displaying its file.
 365 Used by the `browse-url-of-file' command."
 366   :type 'boolean
 367   :group 'browse-url)
 368
 369 (defcustom browse-url-of-file-hook nil
 370   "Run after `browse-url-of-file' has asked a browser to load a file.
 371
 372 Set this to `browse-url-netscape-reload' to force Netscape to load the
 373 file rather than displaying a cached copy."
 374   :type 'hook
 375   :options '(browse-url-netscape-reload)
 376   :group 'browse-url)
 377
 378 (defvar browse-url-usr1-signal
 379   (if (and (boundp 'emacs-major-version)
 380            (or (> emacs-major-version 19) (>= emacs-minor-version 29)))
 381       'SIGUSR1 ; Why did I think this was in lower case before?
 382     30)                                 ; Check /usr/include/signal.h.
 383   "The argument to `signal-process' for sending SIGUSR1 to XMosaic.
 384 Emacs 19.29 accepts 'SIGUSR1, earlier versions require an integer
 385 which is 30 on SunOS and 16 on HP-UX and Solaris.")
 386
 387 (defcustom browse-url-CCI-port 3003
 388   "Port to access XMosaic via CCI.
 389 This can be any number between 1024 and 65535 but must correspond to
 390 the value set in the browser."
 391   :type 'integer
 392   :group 'browse-url)
 393
 394 (defcustom browse-url-CCI-host "localhost"
 395   "*Host to access XMosaic via CCI.
 396 This should be the host name of the machine running XMosaic with CCI
 397 enabled.  The port number should be set in `browse-url-CCI-port'."
 398   :type 'string
 399   :group 'browse-url)
 400
 401 (defvar browse-url-temp-file-name nil)
 402 (make-variable-buffer-local 'browse-url-temp-file-name)
 403
 404 (defcustom browse-url-xterm-program "xterm"
 405   "The name of the terminal emulator used by `browse-url-lynx-xterm'.
 406 This might, for instance, be a separate colour version of xterm."
 407   :type 'string
 408   :group 'browse-url)
 409
 410 (defcustom browse-url-xterm-args nil
 411   "*A list of strings defining options for `browse-url-xterm-program'.
 412 These might set its size, for instance."
 413   :type '(repeat (string :tag "Argument"))
 414   :group 'browse-url)
 415
 416 (defcustom browse-url-lynx-emacs-args (and (not window-system)
 417                                            '("-show_cursor"))
 418   "A list of strings defining options for Lynx in an Emacs buffer.
 419
 420 The default is none in a window system, otherwise `-show_cursor' to
 421 indicate the position of the current link in the absence of
 422 highlighting, assuming the normal default for showing the cursor."
 423   :type '(repeat (string :tag "Argument"))
 424   :version "20.3"
 425   :group 'browse-url)
 426
 427 (defcustom browse-url-gnudoit-program "gnudoit"
 428   "The name of the `gnudoit' program used by `browse-url-w3-gnudoit'."
 429   :type 'string
 430   :group 'browse-url)
 431
 432 (defcustom browse-url-gnudoit-args '("-q")
 433   "*A list of strings defining options for `browse-url-gnudoit-program'.
 434 These might set the port, for instance."
 435   :type '(repeat (string :tag "Argument"))
 436   :group 'browse-url)
 437
 438 ;;;###autoload
 439 (defcustom browse-url-generic-program nil
 440   "*The name of the browser program used by `browse-url-generic'."
 441   :type '(choice string (const :tag "None" nil))
 442   :group 'browse-url)
 443
 444 (defcustom browse-url-generic-args nil
 445   "*A list of strings defining options for `browse-url-generic-program'."
 446   :type '(repeat (string :tag "Argument"))
 447   :group 'browse-url)
 448
 449 (defcustom browse-url-temp-dir temporary-file-directory
 450   "The name of a directory for browse-url's temporary files.
 451 Such files are generated by functions like `browse-url-of-region'.
 452 You might want to set this to somewhere with restricted read permissions
 453 for privacy's sake."
 454   :type 'string
 455   :group 'browse-url)
 456
 457 (defcustom browse-url-netscape-version
 458   3
 459   "The version of Netscape you are using.
 460 This affects how URL reloading is done; the mechanism changed
 461 incompatibly at version 4."
 462   :type 'number
 463   :group 'browse-url)
 464
 465 (defcustom browse-url-lynx-input-field 'avoid
 466   "*Action on selecting an existing Lynx buffer at an input field.
 467 What to do when sending a new URL to an existing Lynx buffer in Emacs
 468 if the Lynx cursor is on an input field (in which case the `g' command
 469 would be entered as data).  Such fields are recognized by the
 470 underlines ____.  Allowed values: nil: disregard it, 'warn: warn the
 471 user and don't emit the URL, 'avoid: try to avoid the field by moving
 472 down (this *won't* always work)."
 473   :type '(choice (const :tag "Move to try to avoid field" :value avoid)
 474                  (const :tag "Disregard" :value nil)
 475                  (const :tag "Warn, don't emit URL" :value warn))
 476   :version "20.3"
 477   :group 'browse-url)
 478
 479 (defvar browse-url-lynx-input-attempts 10
 480   "*How many times to try to move down from a series of lynx input fields.")
 481
 482 (defcustom browse-url-lynx-input-delay 0.2
 483   "How many seconds to wait for lynx between moves down from an input field.")
 484
 485 (defcustom browse-url-kde-program "kfmclient"
 486   "The name by which to invoke the KDE web browser."
 487   :type 'string
 488   :version "21.1"
 489   :group 'browse-url)
 490
 491 (defcustom browse-url-kde-args '("openURL")
 492   "*A list of strings defining options for `browse-url-kde-program'."
 493   :type '(repeat (string :tag "Argument"))
 494   :group 'browse-url)
 495
 496 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 497 ;; URL input
 498
 499 (defun browse-url-url-at-point ()
 500   (let ((url (thing-at-point 'url)))
 501     (set-text-properties 0 (length url) nil url)
 502     url))
 503
 504 ;; Having this as a separate function called by the browser-specific
 505 ;; functions allows them to be stand-alone commands, making it easier
 506 ;; to switch between browsers.
 507
 508 (defun browse-url-interactive-arg (prompt)
 509   "Read a URL from the minibuffer, prompting with PROMPT.
 510 Default to the URL at or before point.  If invoked with a mouse button,
 511 set point to the position clicked first.  Return a list for use in
 512 `interactive' containing the URL and `browse-url-new-window-flag' or its
 513 negation if a prefix argument was given."
 514   (let ((event (elt (this-command-keys) 0)))
 515     (and (listp event) (mouse-set-point event)))
 516   (list (read-string prompt (browse-url-url-at-point))
 517         (not (eq (null browse-url-new-window-flag)
 518                  (null current-prefix-arg)))))
 519
 520 ;; interactive-p needs to be called at a function's top-level, hence
 521 ;; the macro.
 522 (defmacro browse-url-maybe-new-window (arg)
 523   `(if (interactive-p)
 524        ,arg
 525      browse-url-new-window-flag))
 526
 527 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 528 ;; Browse current buffer
 529
 530 ;;;###autoload
 531 (defun browse-url-of-file (&optional file)
 532   "Ask a WWW browser to display FILE.
 533 Display the current buffer's file if FILE is nil or if called
 534 interactively.  Turn the filename into a URL with function
 535 `browse-url-file-url'.  Pass the URL to a browser using the
 536 `browse-url' function then run `browse-url-of-file-hook'."
 537   (interactive)
 538   (or file
 539       (setq file (buffer-file-name))
 540       (error "Current buffer has no file"))
 541   (let ((buf (get-file-buffer file)))
 542     (if buf
 543         (save-excursion
 544           (set-buffer buf)
 545           (cond ((not (buffer-modified-p)))
 546                 (browse-url-save-file (save-buffer))
 547                 (t (message "%s modified since last save" file))))))
 548   (browse-url (browse-url-file-url file))
 549   (run-hooks 'browse-url-of-file-hook))
 550
 551 (defun browse-url-file-url (file)
 552   "Return the URL corresponding to FILE.
 553 Use variable `browse-url-filename-alist' to map filenames to URLs."
 554   ;; URL-encode special chars, do % first
 555   (let ((s 0))
 556     (while (setq s (string-match "%" file s))
 557       (setq file (replace-match "%25" t t file)
 558             s (1+ s))))
 559   (while (string-match "[*\"()',=;? ]" file)
 560     (let ((enc (format "%%%x" (aref file (match-beginning 0)))))
 561       (setq file (replace-match enc t t file))))
 562   (dolist (map browse-url-filename-alist)
 563     (when (and map (string-match (car map) file))
 564       (setq file (replace-match (cdr map) t nil file))))
 565   file)
 566
 567 ;;;###autoload
 568 (defun browse-url-of-buffer (&optional buffer)
 569   "Ask a WWW browser to display BUFFER.
 570 Display the current buffer if BUFFER is nil.  Display only the
 571 currently visible part of BUFFER (from a temporary file) if buffer is
 572 narrowed."
 573   (interactive)
 574   (save-excursion
 575     (and buffer (set-buffer buffer))
 576     (let ((file-name
 577            ;; Ignore real name if restricted
 578            (and (= (- (point-max) (point-min)) (buffer-size))
 579                 (or buffer-file-name
 580                     (and (boundp 'dired-directory) dired-directory)))))
 581       (or file-name
 582           (progn
 583             (or browse-url-temp-file-name
 584                 (setq browse-url-temp-file-name
 585                       (convert-standard-filename
 586                        (make-temp-file
 587                         (expand-file-name "burl" browse-url-temp-dir)))))
 588             (setq file-name browse-url-temp-file-name)
 589             (write-region (point-min) (point-max) file-name nil 'no-message)))
 590       (browse-url-of-file file-name))))
 591
 592 (defun browse-url-delete-temp-file (&optional temp-file-name)
 593   ;; Delete browse-url-temp-file-name from the file system
 594   ;; If optional arg TEMP-FILE-NAME is non-nil, delete it instead
 595   (let ((file-name (or temp-file-name browse-url-temp-file-name)))
 596     (if (and file-name (file-exists-p file-name))
 597         (delete-file file-name))))
 598
 599 (add-hook 'kill-buffer-hook 'browse-url-delete-temp-file)
 600
 601 ;;;###autoload
 602 (defun browse-url-of-dired-file ()
 603   "In Dired, ask a WWW browser to display the file named on this line."
 604   (interactive)
 605   (browse-url-of-file (dired-get-filename)))
 606
 607 ;;;###autoload
 608 (defun browse-url-of-region (min max)
 609   "Ask a WWW browser to display the current region."
 610   (interactive "r")
 611   (save-excursion
 612     (save-restriction
 613       (narrow-to-region min max)
 614       (browse-url-of-buffer))))
 615
 616 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 617 ;; Browser-independent commands
 618
 619 ;; A generic command to call the current browse-url-browser-function
 620
 621 ;;;###autoload
 622 (defun browse-url (url &rest args)
 623   "Ask a WWW browser to load URL.
 624 Prompts for a URL, defaulting to the URL at or before point.  Variable
 625 `browse-url-browser-function' says which browser to use."
 626   (interactive (browse-url-interactive-arg "URL: "))
 627   (unless (interactive-p)
 628     (setq args (or args (list browse-url-new-window-flag))))
 629   (if (functionp browse-url-browser-function)
 630       (apply browse-url-browser-function url args)
 631     ;; The `function' can be an alist; look down it for first match
 632     ;; and apply the function (which might be a lambda).
 633     (catch 'done
 634       (dolist (bf browse-url-browser-function)
 635         (when (string-match (car bf) url)
 636           (apply (cdr bf) url args)
 637           (throw 'done t)))
 638       (error "No browse-url-browser-function matching URL %s"
 639              url))))
 640
 641 ;;;###autoload
 642 (defun browse-url-at-point (&optional arg)
 643   "Ask a WWW browser to load the URL at or before point.
 644 Doesn't let you edit the URL like `browse-url'.  Variable
 645 `browse-url-browser-function' says which browser to use."
 646   (interactive "P")
 647   (let ((url (browse-url-url-at-point)))
 648     (if url
 649         (browse-url url (if arg
 650                             (not browse-url-new-window-flag)
 651                           browse-url-new-window-flag))
 652       (error "No URL found"))))
 653
 654 ;;;###autoload
 655 (defun browse-url-at-mouse (event)
 656   "Ask a WWW browser to load a URL clicked with the mouse.
 657 The URL is the one around or before the position of the mouse click
 658 but point is not changed.  Doesn't let you edit the URL like
 659 `browse-url'.  Variable `browse-url-browser-function' says which browser
 660 to use."
 661   (interactive "e")
 662   (save-excursion
 663     (mouse-set-point event)
 664     (browse-url-at-point browse-url-new-window-flag)))
 665
 666 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 667 ;; Browser-specific commands
 668
 669 ;; --- Default MS-Windows browser ---
 670
 671 (defun browse-url-default-windows-browser (url &optional new-window)
 672   (interactive (browse-url-interactive-arg "URL: "))
 673   (if (eq system-type 'ms-dos)
 674       (if dos-windows-version
 675           (shell-command (concat "start " (shell-quote-argument url)))
 676         (error "Browsing URLs is not supported on this system"))
 677     (w32-shell-execute "open" url)))
 678
 679 ;; --- Netscape ---
 680
 681 (defun browse-url-process-environment ()
 682   "Set DISPLAY in the environment to the X display Netscape is running on.
 683 This is either the value of variable `browse-url-netscape-display' if
 684 non-nil, or the same display as Emacs if different from the current
 685 environment, otherwise just use the current environment."
 686   (let ((display (or browse-url-netscape-display (browse-url-emacs-display))))
 687     (if display
 688         (cons (concat "DISPLAY=" display) process-environment)
 689       process-environment)))
 690
 691 (defun browse-url-emacs-display ()
 692   "Return the X display Emacs is running on.
 693 This is nil if the display is the same as the DISPLAY environment variable.
 694
 695 Actually Emacs could be using several displays; this just returns the
 696 one showing the selected frame."
 697   (let ((display (cdr-safe (assq 'display (frame-parameters)))))
 698     (and (not (equal display (getenv "DISPLAY")))
 699          display)))
 700
 701 ;;;###autoload
 702 (defun browse-url-netscape (url &optional new-window)
 703   "Ask the Netscape WWW browser to load URL.
 704 Default to the URL around or before point.  The strings in variable
 705 `browse-url-netscape-arguments' are also passed to Netscape.
 706
 707 When called interactively, if variable `browse-url-new-window-flag' is
 708 non-nil, load the document in a new Netscape window, otherwise use a
 709 random existing one.  A non-nil interactive prefix argument reverses
 710 the effect of `browse-url-new-window-flag'.
 711
 712 When called non-interactively, optional second argument NEW-WINDOW is
 713 used instead of `browse-url-new-window-flag'."
 714   (interactive (browse-url-interactive-arg "URL: "))
 715   ;; URL encode any `confusing' characters in the URL.  This needs to
 716   ;; include at least commas; presumably also close parens.
 717   (while (string-match "[,)]" url)
 718     (setq url (replace-match
 719                (format "%%%x" (string-to-char (match-string 0 url))) t t url)))
 720   (let* ((process-environment (browse-url-process-environment))
 721          (process (apply 'start-process
 722                          (concat "netscape " url) nil
 723                          browse-url-netscape-program
 724                          (append
 725                           browse-url-netscape-arguments
 726                           (if (eq window-system 'w32)
 727                               (list url)
 728                             (append
 729                              (if new-window '("-noraise"))
 730                              (list "-remote"
 731                                    (concat "openURL(" url
 732                                            (if (browse-url-maybe-new-window
 733                                                 new-window)
 734                                                ",new-window")
 735                                            ")"))))))))
 736     (set-process-sentinel process
 737                           `(lambda (process change)
 738                              (browse-url-netscape-sentinel process ,url)))))
 739
 740 (defun browse-url-netscape-sentinel (process url)
 741   "Handle a change to the process communicating with Netscape."
 742   (or (eq (process-exit-status process) 0)
 743       (let* ((process-environment (browse-url-process-environment)))
 744         ;; Netscape not running - start it
 745         (message "Starting Netscape...")
 746         (apply 'start-process (concat "netscape" url) nil
 747                browse-url-netscape-program
 748                (append browse-url-netscape-startup-arguments (list url))))))
 749
 750 (defun browse-url-netscape-reload ()
 751   "Ask Netscape to reload its current document.
 752 How depends on `browse-url-netscape-version'."
 753   (interactive)
 754   ;; Backwards incompatibility reported by
 755   ;; <peter.kruse@psychologie.uni-regensburg.de>.
 756   (browse-url-netscape-send (if (>= browse-url-netscape-version 4)
 757                                 "xfeDoCommand(reload)"
 758                                 "reload")))
 759
 760 (defun browse-url-netscape-send (command)
 761   "Send a remote control command to Netscape."
 762   (let* ((process-environment (browse-url-process-environment)))
 763     (apply 'start-process "netscape" nil
 764            browse-url-netscape-program
 765            (append browse-url-netscape-arguments
 766                    (list "-remote" command)))))
 767
 768 ;; GNOME means of invoking either Mozilla or Netrape.
 769
 770 (defcustom browse-url-gnome-moz-arguments '()
 771   "A list of strings passed to the GNOME mozilla viewer as arguments."
 772   :version "21.1"
 773   :type '(repeat (string :tag "Argument"))
 774   :group 'browse-url)
 775
 776 ;;;###autoload
 777 (defun browse-url-gnome-moz (url &optional new-window)
 778   "Ask Mozilla/Netscape to load URL via the GNOME program `gnome-moz-remote'.
 779 Default to the URL around or before point.  The strings in variable
 780 `browse-url-gnome-moz-arguments' are also passed.
 781
 782 When called interactively, if variable `browse-url-new-window-flag' is
 783 non-nil, load the document in a new browser window, otherwise use an
 784 existing one.  A non-nil interactive prefix argument reverses the
 785 effect of `browse-url-new-window-flag'.
 786
 787 When called non-interactively, optional second argument NEW-WINDOW is
 788 used instead of `browse-url-new-window-flag'."
 789   (interactive (browse-url-interactive-arg "URL: "))
 790   (apply 'start-process (concat "gnome-moz-remote " url)
 791          nil
 792          "gnome-moz-remote"
 793          (append
 794           browse-url-gnome-moz-arguments
 795           (if (browse-url-maybe-new-window new-window)
 796             '("--newwin"))
 797           (list "--raise" url))))
 798
 799 ;; --- Mosaic ---
 800
 801 ;;;###autoload
 802 (defun browse-url-mosaic (url &optional new-window)
 803   "Ask the XMosaic WWW browser to load URL.
 804
 805 Default to the URL around or before point.  The strings in variable
 806 `browse-url-mosaic-arguments' are also passed to Mosaic and the
 807 program is invoked according to the variable
 808 `browse-url-mosaic-program'.
 809
 810 When called interactively, if variable `browse-url-new-window-flag' is
 811 non-nil, load the document in a new Mosaic window, otherwise use a
 812 random existing one.  A non-nil interactive prefix argument reverses
 813 the effect of `browse-url-new-window-flag'.
 814
 815 When called non-interactively, optional second argument NEW-WINDOW is
 816 used instead of `browse-url-new-window-flag'."
 817   (interactive (browse-url-interactive-arg "Mosaic URL: "))
 818   (let ((pidfile (expand-file-name "~/.mosaicpid"))
 819         pid)
 820     (if (file-readable-p pidfile)
 821         (save-excursion
 822           (find-file pidfile)
 823           (goto-char (point-min))
 824           (setq pid (read (current-buffer)))
 825           (kill-buffer nil)))
 826     (if (and pid (zerop (signal-process pid 0))) ; Mosaic running
 827         (save-excursion
 828           (find-file (format "/tmp/Mosaic.%d" pid))
 829           (erase-buffer)
 830           (insert (if (browse-url-maybe-new-window new-window)
 831                       "newwin\n"
 832                     "goto\n")
 833                   url "\n")
 834           (save-buffer)
 835           (kill-buffer nil)
 836           ;; Send signal SIGUSR to Mosaic
 837           (message "Signalling Mosaic...")
 838           (signal-process pid browse-url-usr1-signal)
 839           ;; Or you could try:
 840           ;; (call-process "kill" nil 0 nil "-USR1" (int-to-string pid))
 841           (message "Signalling Mosaic...done")
 842           )
 843       ;; Mosaic not running - start it
 844       (message "Starting Mosaic...")
 845       (apply 'start-process "xmosaic" nil browse-url-mosaic-program
 846              (append browse-url-mosaic-arguments (list url)))
 847       (message "Starting Mosaic...done"))))
 848
 849 ;; --- Grail ---
 850
 851 ;;;###autoload
 852 (defvar browse-url-grail
 853   (concat (or (getenv "GRAILDIR") "~/.grail") "/user/rcgrail.py")
 854   "Location of Grail remote control client script `rcgrail.py'.
 855 Typically found in $GRAILDIR/rcgrail.py, or ~/.grail/user/rcgrail.py.")
 856
 857 ;;;###autoload
 858 (defun browse-url-grail (url &optional new-window)
 859   "Ask the Grail WWW browser to load URL.
 860 Default to the URL around or before point.  Runs the program in the
 861 variable `browse-url-grail'."
 862   (interactive (browse-url-interactive-arg "Grail URL: "))
 863   (message "Sending URL to Grail...")
 864   (save-excursion
 865     (set-buffer (get-buffer-create " *Shell Command Output*"))
 866     (erase-buffer)
 867     ;; don't worry about this failing.
 868     (if new-window
 869         (call-process browse-url-grail nil 0 nil "-b" url)
 870       (call-process browse-url-grail nil 0 nil url))
 871     (message "Sending URL to Grail... done")))
 872
 873 ;; --- Mosaic using CCI ---
 874
 875 ;;;###autoload
 876 (defun browse-url-cci (url &optional new-window)
 877   "Ask the XMosaic WWW browser to load URL.
 878 Default to the URL around or before point.
 879
 880 This function only works for XMosaic version 2.5 or later.  You must
 881 select `CCI' from XMosaic's File menu, set the CCI Port Address to the
 882 value of variable `browse-url-CCI-port', and enable `Accept requests'.
 883
 884 When called interactively, if variable `browse-url-new-window-flag' is
 885 non-nil, load the document in a new browser window, otherwise use a
 886 random existing one.  A non-nil interactive prefix argument reverses
 887 the effect of `browse-url-new-window-flag'.
 888
 889 When called non-interactively, optional second argument NEW-WINDOW is
 890 used instead of `browse-url-new-window-flag'."
 891   (interactive (browse-url-interactive-arg "Mosaic URL: "))
 892   (open-network-stream "browse-url" " *browse-url*"
 893                        browse-url-CCI-host browse-url-CCI-port)
 894   ;; Todo: start browser if fails
 895   (process-send-string "browse-url"
 896                        (concat "get url (" url ") output "
 897                                (if (browse-url-maybe-new-window new-window)
 898                                    "new"
 899                                  "current")
 900                                "\r\n"))
 901   (process-send-string "browse-url" "disconnect\r\n")
 902   (delete-process "browse-url"))
 903
 904 ;; --- IXI Mosaic ---
 905
 906 ;;;###autoload
 907 (defun browse-url-iximosaic (url &optional new-window)
 908   ;; new-window ignored
 909   "Ask the IXIMosaic WWW browser to load URL.
 910 Default to the URL around or before point."
 911   (interactive (browse-url-interactive-arg "IXI Mosaic URL: "))
 912   (start-process "tellw3b" nil "tellw3b"
 913                  "-service WWW_BROWSER ixi_showurl " url))
 914
 915 ;; --- W3 ---
 916
 917 ;;;###autoload
 918 (defun browse-url-w3 (url &optional new-window)
 919   "Ask the w3 WWW browser to load URL.
 920 Default to the URL around or before point.
 921
 922 When called interactively, if variable `browse-url-new-window-flag' is
 923 non-nil, load the document in a new window.  A non-nil interactive
 924 prefix argument reverses the effect of `browse-url-new-window-flag'.
 925
 926 When called non-interactively, optional second argument NEW-WINDOW is
 927 used instead of `browse-url-new-window-flag'."
 928   (interactive (browse-url-interactive-arg "W3 URL: "))
 929   (require 'w3)                         ; w3-fetch-other-window not autoloaded
 930   (if (browse-url-maybe-new-window new-window)
 931       (w3-fetch-other-window url)
 932     (w3-fetch url)))
 933
 934 ;;;###autoload
 935 (defun browse-url-w3-gnudoit (url &optional new-window)
 936   ;; new-window ignored
 937   "Ask another Emacs running gnuserv to load the URL using the W3 browser.
 938 The `browse-url-gnudoit-program' program is used with options given by
 939 `browse-url-gnudoit-args'.  Default to the URL around or before point."
 940   (interactive (browse-url-interactive-arg "W3 URL: "))
 941     (apply 'start-process (concat "gnudoit:" url) nil
 942            browse-url-gnudoit-program
 943            (append browse-url-gnudoit-args
 944                    (list (concat "(w3-fetch \"" url "\")")
 945                          "(raise-frame)"))))
 946
 947 ;; --- Lynx in an xterm ---
 948
 949 ;;;###autoload
 950 (defun browse-url-lynx-xterm (url &optional new-window)
 951   ;; new-window ignored
 952   "Ask the Lynx WWW browser to load URL.
 953 Default to the URL around or before point.  A new Lynx process is run
 954 in an Xterm window using the Xterm program named by `browse-url-xterm-program'
 955 with possible additional arguments `browse-url-xterm-args'."
 956   (interactive (browse-url-interactive-arg "Lynx URL: "))
 957   (apply #'start-process `(,(concat "lynx" url) nil ,browse-url-xterm-program
 958              ,@browse-url-xterm-args "-e" "lynx"
 959              ,url)))
 960
 961 ;; --- Lynx in an Emacs "term" window ---
 962
 963 ;;;###autoload
 964 (defun browse-url-lynx-emacs (url &optional new-buffer)
 965   "Ask the Lynx WWW browser to load URL.
 966 Default to the URL around or before point.  With a prefix argument, run
 967 a new Lynx process in a new buffer.
 968
 969 When called interactively, if variable `browse-url-new-window-flag' is
 970 non-nil, load the document in a new lynx in a new term window,
 971 otherwise use any existing one.  A non-nil interactive prefix argument
 972 reverses the effect of `browse-url-new-window-flag'.
 973
 974 When called non-interactively, optional second argument NEW-WINDOW is
 975 used instead of `browse-url-new-window-flag'."
 976   (interactive (browse-url-interactive-arg "Lynx URL: "))
 977   (let* ((system-uses-terminfo t)       ; Lynx uses terminfo
 978          ;; (term-term-name "vt100") ; ??
 979          (buf (get-buffer "*lynx*"))
 980          (proc (and buf (get-buffer-process buf)))
 981          (n browse-url-lynx-input-attempts))
 982     (if (and (browse-url-maybe-new-window new-buffer) buf)
 983         ;; Rename away the OLD buffer. This isn't very polite, but
 984         ;; term insists on working in a buffer named *lynx* and would
 985         ;; choke on *lynx*<1>
 986         (progn (set-buffer buf)
 987                (rename-uniquely)))
 988     (if (or (browse-url-maybe-new-window new-buffer)
 989             (not buf)
 990             (not proc)
 991             (not (memq (process-status proc) '(run stop))))
 992         ;; start a new lynx
 993         (progn
 994           (setq buf
 995                 (apply #'make-term
 996                        `("lynx" "lynx" nil ,@browse-url-lynx-emacs-args
 997                          ,url)))
 998           (switch-to-buffer buf)
 999           (term-char-mode)
1000           (set-process-sentinel
1001            (get-buffer-process buf)
1002            ;; Don't leave around a dead one (especially because of its
1003            ;; munged keymap.)
1004            (lambda (process event)
1005              (if (not (memq (process-status process) '(run stop)))
1006                  (let ((buf (process-buffer process)))
1007                    (if buf (kill-buffer buf)))))))
1008       ;; send the url to lynx in the old buffer
1009       (let ((win (get-buffer-window buf t)))
1010         (if win
1011             (select-window win)
1012           (switch-to-buffer buf)))
1013       (if (eq (following-char) ?_)
1014           (cond ((eq browse-url-lynx-input-field 'warn)
1015                  (error "Please move out of the input field first"))
1016                 ((eq browse-url-lynx-input-field 'avoid)
1017                  (while (and (eq (following-char) ?_) (> n 0))
1018                    (term-send-down) ; down arrow
1019                    (sit-for browse-url-lynx-input-delay))
1020                  (if (eq (following-char) ?_)
1021                      (error "Cannot move out of the input field, sorry")))))
1022       (term-send-string proc (concat "g" ; goto
1023                                      "\C-u" ; kill default url
1024                                      url
1025                                      "\r")))))
1026
1027 ;; --- MMM ---
1028
1029 ;;;###autoload
1030 (defun browse-url-mmm (url &optional new-window)
1031   "Ask the MMM WWW browser to load URL.
1032 Default to the URL around or before point."
1033   (interactive (browse-url-interactive-arg "MMM URL: "))
1034   (message "Sending URL to MMM...")
1035   (save-excursion
1036     (set-buffer (get-buffer-create " *Shell Command Output*"))
1037     (erase-buffer)
1038     ;; mmm_remote just SEGVs if the file isn't there...
1039     (if (or (file-exists-p (expand-file-name "~/.mmm_remote"))
1040             ;; location in v 0.4:
1041             (file-exists-p (expand-file-name "~/.mmm/remote")))
1042         (call-process "mmm_remote" nil 0 nil url)
1043       (call-process "mmm" nil 0 nil "-external" url))
1044     (message "Sending URL to MMM... done")))
1045
1046 ;; --- mailto ---
1047
1048 ;;;###autoload
1049 (defun browse-url-mail (url &optional new-window)
1050   "Open a new mail message buffer within Emacs.
1051 Default to using the mailto: URL around or before point as the
1052 recipient's address.  Supplying a non-nil interactive prefix argument
1053 will cause the mail to be composed in another window rather than the
1054 current one.
1055
1056 When called interactively, if variable `browse-url-new-window-flag' is
1057 non-nil use `compose-mail-other-window', otherwise `compose-mail'.  A
1058 non-nil interactive prefix argument reverses the effect of
1059 `browse-url-new-window-flag'.
1060
1061 When called non-interactively, optional second argument NEW-WINDOW is
1062 used instead of `browse-url-new-window-flag'."
1063   (interactive (browse-url-interactive-arg "Mailto URL: "))
1064   (save-excursion
1065     (let ((to (if (string-match "^mailto:" url)
1066                   (substring url 7)
1067                 url)))
1068       (if (browse-url-maybe-new-window new-window)
1069           (compose-mail-other-window to nil nil nil
1070                                      (list 'insert-buffer (current-buffer)))
1071         (compose-mail to nil nil nil nil
1072                       (list 'insert-buffer (current-buffer)))))))
1073
1074 ;; --- Random browser ---
1075
1076 ;;;###autoload
1077 (defun browse-url-generic (url &optional new-window)
1078   ;; new-window ignored
1079   "Ask the WWW browser defined by `browse-url-generic-program' to load URL.
1080 Default to the URL around or before point.  A fresh copy of the
1081 browser is started up in a new process with possible additional arguments
1082 `browse-url-generic-args'.  This is appropriate for browsers which
1083 don't offer a form of remote control."
1084   (interactive (browse-url-interactive-arg "URL: "))
1085   (if (not browse-url-generic-program)
1086     (error "No browser defined (`browse-url-generic-program')"))
1087   (apply 'start-process (concat browse-url-generic-program url) nil
1088          browse-url-generic-program
1089          (append browse-url-generic-args (list url))))
1090
1091 ;;;###autoload
1092 (defun browse-url-kde (url &optional new-window)
1093   "Ask the KDE WWW browser to load URL.
1094 Default to the URL around or before point."
1095   (interactive (browse-url-interactive-arg "KDE URL: "))
1096   (message "Sending URL to KDE...")
1097   (apply #'start-process `(,(concat "KDE" url) nil ,browse-url-kde-program
1098                            ,@browse-url-kde-args ,url)))
1099
1100 (provide 'browse-url)
1101
1102 ;;; browse-url.el ends here