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344 lines
10 KiB
C
344 lines
10 KiB
C
/* Add entries to the GNU Emacs Program Manager folder.
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Copyright (C) 1995, 2001-2021 Free Software Foundation, Inc.
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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 (at
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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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/****************************************************************************
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*
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* Program: addpm (adds emacs to the Windows program manager)
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*
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* Usage:
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* argv[1] = install path for emacs
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*
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* argv[2] used to be an optional argument for setting the icon.
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* But now Emacs has a professional looking icon of its own.
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* If users really want to change it, they can go into the settings of
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* the shortcut that is created and do it there.
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*/
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/* Use parts of shell API that were introduced by the merge of IE4
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into the desktop shell. If Windows 95 or NT4 users do not have IE4
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installed, then the DDE fallback for creating icons the Windows 3.1
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progman way will be used instead, but that is prone to lockups
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caused by other applications not servicing their message queues. */
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#include <stdlib.h>
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#include <stdio.h>
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#include <malloc.h>
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/* MinGW64 barfs if _WIN32_IE is defined to anything below 0x0500. */
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#ifndef MINGW_W64
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# ifdef _WIN32_IE
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# undef _WIN32_IE
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# endif
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#define _WIN32_IE 0x0400
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#endif
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/* Request C Object macros for COM interfaces. */
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#define COBJMACROS 1
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#include <windows.h>
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#include <shlobj.h>
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#include <ddeml.h>
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#ifndef OLD_PATHS
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#include "../src/epaths.h"
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#endif
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HDDEDATA CALLBACK DdeCallback (UINT, UINT, HCONV, HSZ, HSZ, HDDEDATA, DWORD_PTR,
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DWORD_PTR);
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HDDEDATA CALLBACK
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DdeCallback (UINT uType, UINT uFmt, HCONV hconv,
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HSZ hsz1, HSZ hsz2, HDDEDATA hdata,
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DWORD_PTR dwData1, DWORD_PTR dwData2)
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{
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return ((HDDEDATA) NULL);
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}
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#define DdeCommand(str) \
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DdeClientTransaction ((LPBYTE)str, strlen (str)+1, conversation, (HSZ)NULL, \
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CF_TEXT, XTYP_EXECUTE, 30000, NULL)
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#define REG_ROOT "SOFTWARE\\GNU\\Emacs"
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#define REG_APP_PATH \
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"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\App Paths\\emacs.exe"
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static struct entry
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{
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const char *name;
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const char *value;
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}
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env_vars[] =
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{
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#ifdef OLD_PATHS
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{"emacs_dir", NULL},
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{"EMACSLOADPATH", "%emacs_dir%/site-lisp;%emacs_dir%/../site-lisp;%emacs_dir%/lisp"},
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{"SHELL", "%emacs_dir%/bin/cmdproxy.exe"},
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{"EMACSDATA", "%emacs_dir%/etc"},
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{"EMACSPATH", "%emacs_dir%/bin"},
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/* We no longer set INFOPATH because Info-default-directory-list
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is then ignored. */
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/* {"INFOPATH", "%emacs_dir%/info"}, */
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{"EMACSDOC", "%emacs_dir%/etc"},
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{"TERM", "cmd"}
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#else /* !OLD_PATHS */
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{"emacs_dir", NULL},
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{"EMACSLOADPATH", PATH_SITELOADSEARCH ";" PATH_LOADSEARCH},
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{"SHELL", PATH_EXEC "/cmdproxy.exe"},
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{"EMACSDATA", PATH_DATA},
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{"EMACSPATH", PATH_EXEC},
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/* We no longer set INFOPATH because Info-default-directory-list
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is then ignored. */
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/* {"INFOPATH", "%emacs_dir%/info"}, */
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{"EMACSDOC", PATH_DOC},
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{"TERM", "cmd"}
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#endif
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};
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static void
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add_registry (const char *path)
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{
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HKEY hrootkey = NULL;
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int i;
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/* Record the location of Emacs to the App Paths key if we have
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sufficient permissions to do so. This helps Windows find emacs quickly
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if the user types emacs.exe in the "Run Program" dialog without having
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emacs on their path. Some applications also use the same registry key
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to discover the installation directory for programs they are looking for.
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Multiple installations cannot be handled by this method, but it does not
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affect the general operation of other installations of Emacs, and we
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are blindly overwriting the Start Menu entries already.
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*/
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if (RegCreateKeyEx (HKEY_LOCAL_MACHINE, REG_APP_PATH, 0, NULL,
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REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL,
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&hrootkey, NULL) == ERROR_SUCCESS)
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{
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int len;
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char *emacs_path;
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len = strlen (path) + 15; /* \bin\emacs.exe + terminator. */
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emacs_path = (char *) alloca (len);
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sprintf (emacs_path, "%s\\bin\\emacs.exe", path);
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RegSetValueEx (hrootkey, NULL, 0, REG_EXPAND_SZ, emacs_path, len);
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RegCloseKey (hrootkey);
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}
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/* Previous versions relied on registry settings, but we do not need
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them any more. If registry settings are installed from a previous
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version, replace them to ensure they are the current settings.
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Otherwise, do nothing. */
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/* Check both the current user and the local machine to see if we
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have any resources. */
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if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0,
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KEY_WRITE | KEY_QUERY_VALUE, &hrootkey) != ERROR_SUCCESS
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&& RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0,
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KEY_WRITE | KEY_QUERY_VALUE, &hrootkey) != ERROR_SUCCESS)
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return;
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for (i = 0; i < (sizeof (env_vars) / sizeof (env_vars[0])); i++)
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{
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const char * value = env_vars[i].value ? env_vars[i].value : path;
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/* Replace only those settings that already exist. */
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if (RegQueryValueEx (hrootkey, env_vars[i].name, NULL,
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NULL, NULL, NULL) == ERROR_SUCCESS)
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RegSetValueEx (hrootkey, env_vars[i].name, 0, REG_EXPAND_SZ,
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value, lstrlen (value) + 1);
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}
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RegCloseKey (hrootkey);
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}
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int
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main (int argc, char *argv[])
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{
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char start_folder[MAX_PATH + 1];
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int shortcuts_created = 0;
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int com_available = 1;
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char modname[MAX_PATH];
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const char *prog_name;
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const char *emacs_path;
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char *p;
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int quiet = 0;
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HRESULT result;
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IShellLinkA *shortcut;
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/* If no args specified, use our location to set emacs_path. */
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if (argc > 1
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&& (argv[1][0] == '/' || argv[1][0] == '-')
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&& argv[1][1] == 'q')
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{
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quiet = 1;
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--argc;
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++argv;
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}
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if (argc > 1)
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emacs_path = argv[1];
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else
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{
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if (!GetModuleFileName (NULL, modname, MAX_PATH) ||
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(p = strrchr (modname, '\\')) == NULL)
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{
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fprintf (stderr, "fatal error");
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exit (1);
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}
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*p = 0;
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/* Set emacs_path to emacs_dir if we are in "%emacs_dir%\bin". */
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if ((p = strrchr (modname, '\\')) && stricmp (p, "\\bin") == 0)
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{
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*p = 0;
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emacs_path = modname;
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}
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else
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{
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fprintf (stderr, "usage: addpm emacs_path\n");
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exit (1);
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}
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/* Tell user what we are going to do. */
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if (!quiet)
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{
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int result;
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const char install_msg[] = "Install Emacs at %s?\n";
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char msg[ MAX_PATH + sizeof (install_msg) ];
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sprintf (msg, install_msg, emacs_path);
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result = MessageBox (NULL, msg, "Install Emacs",
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MB_OKCANCEL | MB_ICONQUESTION);
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if (result != IDOK)
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{
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fprintf (stderr, "Install canceled\n");
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exit (1);
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}
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}
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}
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add_registry (emacs_path);
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prog_name = "runemacs.exe";
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/* Try to install globally. */
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if (!SUCCEEDED (CoInitialize (NULL))
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|| !SUCCEEDED (CoCreateInstance (&CLSID_ShellLink, NULL,
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CLSCTX_INPROC_SERVER, &IID_IShellLinkA,
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(void **) &shortcut)))
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{
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com_available = 0;
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}
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if (com_available
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&& SHGetSpecialFolderPath (NULL, start_folder, CSIDL_COMMON_PROGRAMS, 0))
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{
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if (strlen (start_folder) < (MAX_PATH - 20))
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{
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strcat (start_folder, "\\Gnu Emacs");
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if (CreateDirectory (start_folder, NULL)
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|| GetLastError () == ERROR_ALREADY_EXISTS)
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{
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char full_emacs_path[MAX_PATH + 1];
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IPersistFile *lnk;
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strcat (start_folder, "\\Emacs.lnk");
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sprintf (full_emacs_path, "%s\\bin\\%s", emacs_path, prog_name);
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IShellLinkA_SetPath (shortcut, full_emacs_path);
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IShellLinkA_SetDescription (shortcut, "GNU Emacs");
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result = IShellLinkA_QueryInterface (shortcut, &IID_IPersistFile,
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(void **) &lnk);
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if (SUCCEEDED (result))
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{
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wchar_t unicode_path[MAX_PATH];
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MultiByteToWideChar (CP_ACP, 0, start_folder, -1,
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unicode_path, MAX_PATH);
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if (SUCCEEDED (IPersistFile_Save (lnk, unicode_path, TRUE)))
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shortcuts_created = 1;
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IPersistFile_Release (lnk);
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}
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}
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}
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}
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if (!shortcuts_created && com_available
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&& SHGetSpecialFolderPath (NULL, start_folder, CSIDL_PROGRAMS, 0))
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{
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/* Ensure there is enough room for "...\GNU Emacs\Emacs.lnk". */
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if (strlen (start_folder) < (MAX_PATH - 20))
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{
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strcat (start_folder, "\\Gnu Emacs");
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if (CreateDirectory (start_folder, NULL)
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|| GetLastError () == ERROR_ALREADY_EXISTS)
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{
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char full_emacs_path[MAX_PATH + 1];
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IPersistFile *lnk;
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strcat (start_folder, "\\Emacs.lnk");
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sprintf (full_emacs_path, "%s\\bin\\%s", emacs_path, prog_name);
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IShellLinkA_SetPath (shortcut, full_emacs_path);
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IShellLinkA_SetDescription (shortcut, "GNU Emacs");
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result = IShellLinkA_QueryInterface (shortcut, &IID_IPersistFile,
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(void **) &lnk);
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if (SUCCEEDED (result))
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{
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wchar_t unicode_path[MAX_PATH];
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MultiByteToWideChar (CP_ACP, 0, start_folder, -1,
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unicode_path, MAX_PATH);
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if (SUCCEEDED (IPersistFile_Save (lnk, unicode_path, TRUE)))
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shortcuts_created = 1;
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IPersistFile_Release (lnk);
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}
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}
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}
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}
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if (com_available)
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IShellLinkA_Release (shortcut);
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/* Need to call uninitialize, even if ComInitialize failed. */
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CoUninitialize ();
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/* Fallback on old DDE method if the above failed. */
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if (!shortcuts_created)
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{
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DWORD dde = 0;
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HCONV conversation;
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HSZ progman;
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char add_item[MAX_PATH*2 + 100];
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DdeInitialize (&dde, (PFNCALLBACK) DdeCallback, APPCMD_CLIENTONLY, 0);
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progman = DdeCreateStringHandle (dde, "PROGMAN", CP_WINANSI);
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conversation = DdeConnect (dde, progman, progman, NULL);
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if (conversation)
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{
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DdeCommand ("[CreateGroup (\"Gnu Emacs\")]");
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DdeCommand ("[ReplaceItem (Emacs)]");
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sprintf (add_item, "[AddItem (\"%s\\bin\\%s\", Emacs)]",
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emacs_path, prog_name);
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DdeCommand (add_item);
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DdeDisconnect (conversation);
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}
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DdeFreeStringHandle (dde, progman);
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DdeUninitialize (dde);
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}
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return 0;
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}
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