]> git.lyx.org Git - lyx.git/blobdiff - src/support/os_win32.cpp
CMake: fix merged build, seems GCC could not handle the namespaces correctly
[lyx.git] / src / support / os_win32.cpp
index 62ef4e99708bf7de28f881a28f02f32c762355a5..19d28d7e4bb766951372002e4cd5f702584bd9ec 100644 (file)
@@ -71,6 +71,9 @@
 using namespace std;
 
 namespace lyx {
+
+void lyx_exit(int);
+
 namespace support {
 namespace os {
 
@@ -80,6 +83,17 @@ bool windows_style_tex_paths_ = true;
 
 string cygdrive = "/cygdrive";
 
+BOOL terminate_handler(DWORD event)
+{
+       if (event == CTRL_CLOSE_EVENT
+           || event == CTRL_LOGOFF_EVENT
+           || event == CTRL_SHUTDOWN_EVENT) {
+               lyx::lyx_exit(1);
+               return TRUE;
+       }
+       return FALSE;
+}
+
 } // namespace anon
 
 void init(int /* argc */, char * argv[])
@@ -140,27 +154,51 @@ void init(int /* argc */, char * argv[])
         * lyx is invoked as a parameter of hidecmd.exe.
         */
 
-       // If cygwin is detected, query the cygdrive prefix
-       HKEY regKey;
+       // If Cygwin is detected, query the cygdrive prefix.
+       // The cygdrive prefix is needed for translating windows style paths
+       // to posix style paths in LaTeX files when the Cygwin teTeX is used.
+       int i;
+       HKEY hkey;
        char buf[MAX_PATH];
-       DWORD bufSize = sizeof(buf);
-       LONG retVal;
-
-       retVal = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
-                       "Software\\Cygnus Solutions\\Cygwin\\mounts v2",
-                       0, KEY_QUERY_VALUE, &regKey);
-       if (retVal != ERROR_SUCCESS) {
-               retVal = RegOpenKeyEx(HKEY_CURRENT_USER,
-                               "Software\\Cygnus Solutions\\Cygwin\\mounts v2",
-                               0, KEY_QUERY_VALUE, &regKey);
+       DWORD bufsize = sizeof(buf);
+       LONG retval = ERROR_FILE_NOT_FOUND;
+       HKEY const mainkey[2] = { HKEY_LOCAL_MACHINE, HKEY_CURRENT_USER };
+       char const * const subkey[2] = {
+               "Software\\Cygwin\\setup",                         // Cygwin 1.7
+               "Software\\Cygnus Solutions\\Cygwin\\mounts v2\\/" // Prev. ver.
+       };
+       char const * const valuename[2] = {
+               "rootdir", // Cygwin 1.7 or later
+               "native"   // Previous versions
+       };
+       // Check for newer Cygwin versions first, then older ones
+       for (i = 0; i < 2 && retval != ERROR_SUCCESS; ++i) {
+               for (int k = 0; k < 2 && retval != ERROR_SUCCESS; ++k)
+                       retval = RegOpenKey(mainkey[k], subkey[i], &hkey);
        }
-       if (retVal == ERROR_SUCCESS) {
-               retVal = RegQueryValueEx(regKey, "cygdrive prefix", NULL, NULL,
-                               (LPBYTE) buf, &bufSize);
-               RegCloseKey(regKey);
-               if ((retVal == ERROR_SUCCESS) && (bufSize <= MAX_PATH))
-                       cygdrive = rtrim(string(buf), "/");
+       if (retval == ERROR_SUCCESS) {
+               // Query the Cygwin root directory
+               retval = RegQueryValueEx(hkey, valuename[i - 1],
+                               NULL, NULL, (LPBYTE) buf, &bufsize);
+               RegCloseKey(hkey);
+               string const mount = string(buf) + "\\bin\\mount.exe";
+               if (retval == ERROR_SUCCESS && FileName(mount).exists()) {
+                       cmd_ret const p =
+                               runCommand(mount + " --show-cygdrive-prefix");
+                       // The output of the mount command is as follows:
+                       // Prefix              Type         Flags
+                       // /cygdrive           system       binmode
+                       // So, we use the inner split to pass the second line
+                       // to the outer split which sets cygdrive with its
+                       // contents until the first blank, discarding the
+                       // unneeded return value.
+                       if (p.first != -1 && prefixIs(p.second, "Prefix"))
+                               split(split(p.second, '\n'), cygdrive, ' ');
+               }
        }
+
+       // Catch shutdown events.
+       SetConsoleCtrlHandler((PHANDLER_ROUTINE)terminate_handler, TRUE);
 }
 
 
@@ -198,6 +236,38 @@ docstring::size_type common_path(docstring const & p1, docstring const & p2)
 }
 
 
+bool path_prefix_is(string const & path, string const & pre)
+{
+       return path_prefix_is(const_cast<string &>(path), pre, CASE_UNCHANGED);
+}
+
+
+bool path_prefix_is(string & path, string const & pre, path_case how)
+{
+       docstring const p1 = from_utf8(path);
+       docstring const p2 = from_utf8(pre);
+       docstring::size_type const p1_len = p1.length();
+       docstring::size_type const p2_len = p2.length();
+       docstring::size_type common_len = common_path(p1, p2);
+
+       if (p2[p2_len - 1] == '/' && p1_len != p2_len)
+               ++common_len;
+
+       if (common_len != p2_len)
+               return false;
+
+       if (how == CASE_ADJUSTED && !prefixIs(path, pre)) {
+               if (p1_len < common_len)
+                       path = to_utf8(p2.substr(0, p1_len));
+               else
+                       path = to_utf8(p2 + p1.substr(common_len,
+                                                       p1_len - common_len));
+       }
+
+       return true;
+}
+
+
 string external_path(string const & p)
 {
        string const dos_path = subst(p, "/", "\\");
@@ -252,8 +322,7 @@ string latex_path(string const & p)
        // on windows_style_tex_paths_), but we use always forward slashes,
        // since it gets written into a .tex file.
 
-       FileName path(p);
-       if (!windows_style_tex_paths_ && path.isAbsolute()) {
+       if (!windows_style_tex_paths_ && FileName::isAbsolute(p)) {
                string const drive = p.substr(0, 2);
                string const cygprefix = cygdrive + "/" + drive.substr(0, 1);
                string const cygpath = subst(subst(p, '\\', '/'), drive, cygprefix);
@@ -297,6 +366,26 @@ string const & nulldev()
 }
 
 
+bool is_terminal(io_channel channel)
+{
+       switch (channel) {
+       case STDIN:
+               if (GetStdHandle(STD_INPUT_HANDLE) == NULL)
+                       return false;
+               break;
+       case STDOUT:
+               if (GetStdHandle(STD_OUTPUT_HANDLE) == NULL)
+                       return false;
+               break;
+       case STDERR:
+               if (GetStdHandle(STD_ERROR_HANDLE) == NULL)
+                       return false;
+               break;
+       }
+       return true;
+}
+
+
 shell_type shell()
 {
        return CMD_EXE;
@@ -390,43 +479,6 @@ bool autoOpenFile(string const & filename, auto_open_mode const mode)
 }
 
 
-bool isSameFile(string const & fileone, string const & filetwo)
-{
-       HANDLE h1 = CreateFile(fileone.c_str(), 0,
-               FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
-       HANDLE h2 = CreateFile(filetwo.c_str(), 0,
-               FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
-
-       if (h1 == INVALID_HANDLE_VALUE || h2 == INVALID_HANDLE_VALUE) {
-               // One or both files cannot be accessed.
-               if (h1 != INVALID_HANDLE_VALUE)
-                       CloseHandle(h1);
-               if (h2 != INVALID_HANDLE_VALUE)
-                       CloseHandle(h2);
-               return false;
-       }
-
-       BY_HANDLE_FILE_INFORMATION info1;
-       BY_HANDLE_FILE_INFORMATION info2;
-       bool samefile = false;
-       if (GetFileInformationByHandle(h1, &info1) != 0
-           && GetFileInformationByHandle(h2, &info2) != 0) {
-               // Serial number of the volumes containing the files.
-               ULONG st1_dev = info1.dwVolumeSerialNumber;
-               ULONG st2_dev = info2.dwVolumeSerialNumber;
-               // Unique identifiers associated to the files on the volumes.
-               ULONGLONG highbits = info1.nFileIndexHigh & 0x0000FFFF;
-               ULONGLONG st1_ino = (highbits << sizeof(ULONG)) | info1.nFileIndexLow;
-               highbits = info2.nFileIndexHigh & 0x0000FFFF;
-               ULONGLONG st2_ino = (highbits << sizeof(ULONG)) | info2.nFileIndexLow;
-               samefile = st1_ino == st2_ino && st1_dev == st2_dev;
-       }
-       CloseHandle(h1);
-       CloseHandle(h2);
-       return samefile;
-}
-
-
 string real_path(string const & path)
 {
        // See http://msdn.microsoft.com/en-us/library/aa366789(VS.85).aspx