1/****************************************************************************
2 * Copyright 2018,2020 Thomas E. Dickey                                     *
3 * Copyright 2009-2012,2014 Free Software Foundation, Inc.                  *
4 *                                                                          *
5 * Permission is hereby granted, free of charge, to any person obtaining a  *
6 * copy of this software and associated documentation files (the            *
7 * "Software"), to deal in the Software without restriction, including      *
8 * without limitation the rights to use, copy, modify, merge, publish,      *
9 * distribute, distribute with modifications, sublicense, and/or sell       *
10 * copies of the Software, and to permit persons to whom the Software is    *
11 * furnished to do so, subject to the following conditions:                 *
12 *                                                                          *
13 * The above copyright notice and this permission notice shall be included  *
14 * in all copies or substantial portions of the Software.                   *
15 *                                                                          *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23 *                                                                          *
24 * Except as contained in this notice, the name(s) of the above copyright   *
25 * holders shall not be used in advertising or otherwise to promote the     *
26 * sale, use or other dealings in this Software without prior written       *
27 * authorization.                                                           *
28 ****************************************************************************/
29
30/****************************************************************************
31 *  Author: Juergen Pfeifer                                                 *
32 *                                                                          *
33 ****************************************************************************/
34
35#include <curses.priv.h>
36
37MODULE_ID("$Id: lib_driver.c,v 1.9 2020/08/29 19:53:35 tom Exp $")
38
39#ifndef EXP_WIN32_DRIVER
40typedef struct DriverEntry {
41    const char *name;
42    TERM_DRIVER *driver;
43} DRIVER_ENTRY;
44
45static DRIVER_ENTRY DriverTable[] =
46{
47#ifdef _WIN32
48    {"win32console", &_nc_WIN_DRIVER},
49#endif
50    {"tinfo", &_nc_TINFO_DRIVER}	/* must be last */
51};
52
53NCURSES_EXPORT(int)
54_nc_get_driver(TERMINAL_CONTROL_BLOCK * TCB, const char *name, int *errret)
55{
56    int code = ERR;
57    size_t i;
58    TERM_DRIVER *res = (TERM_DRIVER *) 0;
59    TERM_DRIVER *use = 0;
60
61    T((T_CALLED("_nc_get_driver(%p, %s, %p)"),
62       (void *) TCB, NonNull(name), (void *) errret));
63
64    assert(TCB != 0);
65
66    for (i = 0; i < SIZEOF(DriverTable); i++) {
67	res = DriverTable[i].driver;
68	if (strcmp(DriverTable[i].name, res->td_name(TCB)) == 0) {
69	    if (res->td_CanHandle(TCB, name, errret)) {
70		use = res;
71		break;
72	    }
73	}
74    }
75    if (use != 0) {
76	TCB->drv = use;
77	code = OK;
78    }
79    returnCode(code);
80}
81#endif /* !EXP_WIN32_DRIVER */
82
83NCURSES_EXPORT(int)
84NCURSES_SP_NAME(has_key) (SCREEN *sp, int keycode)
85{
86    T((T_CALLED("has_key(%p, %d)"), (void *) sp, keycode));
87    returnCode(IsValidTIScreen(sp) ? CallDriver_1(sp, td_kyExist, keycode) : FALSE);
88}
89
90NCURSES_EXPORT(int)
91has_key(int keycode)
92{
93    return NCURSES_SP_NAME(has_key) (CURRENT_SCREEN, keycode);
94}
95
96NCURSES_EXPORT(int)
97NCURSES_SP_NAME(_nc_mcprint) (SCREEN *sp, char *data, int len)
98{
99    int code = ERR;
100
101    if (0 != TerminalOf(sp))
102	code = CallDriver_2(sp, td_print, data, len);
103    return (code);
104}
105
106NCURSES_EXPORT(int)
107mcprint(char *data, int len)
108{
109    return NCURSES_SP_NAME(_nc_mcprint) (CURRENT_SCREEN, data, len);
110}
111
112NCURSES_EXPORT(int)
113NCURSES_SP_NAME(doupdate) (SCREEN *sp)
114{
115    int code = ERR;
116
117    T((T_CALLED("doupdate(%p)"), (void *) sp));
118
119    if (IsValidScreen(sp))
120	code = CallDriver(sp, td_update);
121
122    returnCode(code);
123}
124
125NCURSES_EXPORT(int)
126doupdate(void)
127{
128    return NCURSES_SP_NAME(doupdate) (CURRENT_SCREEN);
129}
130
131NCURSES_EXPORT(int)
132NCURSES_SP_NAME(mvcur) (SCREEN *sp, int yold, int xold, int ynew, int xnew)
133{
134    int code = ERR;
135    TR(TRACE_CALLS | TRACE_MOVE, (T_CALLED("mvcur(%p,%d,%d,%d,%d)"),
136				  (void *) sp, yold, xold, ynew, xnew));
137    if (HasTerminal(sp)) {
138	code = CallDriver_4(sp, td_hwcur, yold, xold, ynew, xnew);
139    }
140    returnCode(code);
141}
142
143NCURSES_EXPORT(int)
144mvcur(int yold, int xold, int ynew, int xnew)
145/* optimized cursor move from (yold, xold) to (ynew, xnew) */
146{
147    return NCURSES_SP_NAME(mvcur) (CURRENT_SCREEN, yold, xold, ynew, xnew);
148}
149