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Found a way to make the MS-Windows installer wait for the uninstaller to

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finish, no need for the user to press Enter.
This commit is contained in:
Bram Moolenaar
2010-05-25 21:02:00 +02:00
parent 9d72807646
commit b230bd5a16
7 changed files with 77 additions and 36 deletions
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77
src/dosinst.c
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@@ -446,6 +446,25 @@ get_vim_env(void)
}
}
static int num_windows;
/*
* Callback used for EnumWindows():
* Count the window if the title looks like it is for the uninstaller.
*/
/*ARGSUSED*/
static BOOL CALLBACK
window_cb(HWND hwnd, LPARAM lparam)
{
char title[256];
title[0] = 0;
GetWindowText(hwnd, title, 256);
if (strstr(title, "Vim ") != NULL && strstr(title, "Uninstall:") != NULL)
++num_windows;
return TRUE;
}
/*
* Check for already installed Vims.
* Return non-zero when found one.
@@ -543,26 +562,51 @@ uninstall_check(int skip_question)
&orig_num_keys, NULL, NULL, NULL,
NULL, NULL, NULL, NULL);
#if 0 /* let the uninstall program delete the key */
/* Delete the uninstall key. It has no subkeys, so
* this is easy. Do this before uninstalling, that
* may try to delete the key as well. */
RegDeleteKey(key_handle, subkey_name_buff);
#endif
/* Find existing .bat files before deleting them. */
find_bat_exe(TRUE);
/* Execute the uninstall program. Put it in double
* quotes if there is an embedded space. */
if (strchr(temp_string_buffer, ' ') != NULL)
{
char buf[BUFSIZE];
strcpy(buf, temp_string_buffer);
sprintf(temp_string_buffer, "\"%s\"", buf);
if (strchr(temp_string_buffer, ' ') != NULL)
sprintf(buf, "\"%s\"", temp_string_buffer);
else
strcpy(buf, temp_string_buffer);
run_command(buf);
}
run_command(temp_string_buffer);
/* Count the number of windows with a title that match
* the installer, so that we can check when it's done.
* The uninstaller copies itself, executes the copy
* and exits, thus we can't wait for the process to
* finish. */
Sleep(1000); /* wait for uninstaller to start up */
num_windows = 0;
EnumWindows(window_cb, 0);
Sleep(1000); /* wait for windows to be counted */
if (num_windows == 0)
{
/* Did not find the uninstaller, ask user to press
* Enter when done. Just in case. */
printf("Press Enter when the uninstaller is finished\n");
rewind(stdin);
(void)getchar();
}
else
{
printf("Waiting for the uninstaller to finish (press CTRL-C to abort).");
do
{
printf(".");
fflush(stdout);
num_windows = 0;
EnumWindows(window_cb, 0);
Sleep(1000); /* wait for windows to be counted */
} while (num_windows > 0);
}
printf("\nDone!\n");
/* Check if an uninstall reg key was deleted.
* if it was, we want to decrement key_index.
@@ -2393,16 +2437,9 @@ main(int argc, char **argv)
get_vim_env();
/* When nothing found exit quietly. If something found wait for
* hitting Enter.
* We would like to exit without hitting Enter, but the uninstaller
* detaches itself, thus we get here before it's finished. */
* a little while, so that the user can read the messages. */
if (i)
{
printf("\n");
printf("When the uninstall program is finished, press Enter to continue\n");
rewind(stdin);
(void)getchar();
}
Sleep(3000);
exit(0);
}
#endif