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tmux/key-string.c
nicm 646995384d Support for windows larger than visible on the attached client. This has 
been a limitation for a long time.

There are two new options, window-size and default-size, and a new
command, resize-window. The force-width and force-height options and the
session_width and session_height formats have been removed.

The new window-size option tells tmux how to work out the size of
windows: largest means it picks the size of the largest session,
smallest the smallest session (similar to the old behaviour) and manual
means that it does not automatically resize windows. The default is
currently largest but this may change. aggressive-resize modifies the
choice of session for largest and smallest as it did before.

If a window is in a session attached to a client that is too small, only
part of the window is shown. tmux attempts to keep the cursor visible,
so the part of the window displayed is changed as the cursor moves (with
a small delay, to try and avoid excess redrawing when applications
redraw status lines or similar that are not currently visible). The
offset of the visible portion of the window is shown in status-right.

Drawing windows which are larger than the client is not as efficient as
those which fit, particularly when the cursor moves, so it is
recommended to avoid using this on slow machines or networks (set
window-size to smallest or manual).

The resize-window command can be used to resize a window manually. If it
is used, the window-size option is automatically set to manual for the
window (undo this with "setw -u window-size"). resize-window works in a
similar way to resize-pane (-U -D -L -R -x -y flags) but also has -a and
-A flags. -a sets the window to the size of the smallest client (what it
would be if window-size was smallest) and -A the largest.

For the same behaviour as force-width or force-height, use resize-window
-x or -y, and "setw -u window-size" to revert to automatic sizing..

If the global window-size option is set to manual, the default-size
option is used for new windows. If -x or -y is used with new-session,
that sets the default-size option for the new session.

The maximum size of a window is 10000x10000. But expect applications to
complain and much higher memory use if making a window excessively
big. The minimum size is the size required for the current layout
including borders.

The refresh-client command can be used to pan around a window, -U -D -L
-R moves up, down, left or right and -c returns to automatic cursor
tracking. The position is reset when the current window is changed.
2018-10-18 08:38:01 +00:00

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/* $OpenBSD$ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <string.h>
#include "tmux.h"
static key_code key_string_search_table(const char *);
static key_code key_string_get_modifiers(const char **);
static const struct {
const char *string;
key_code key;
} key_string_table[] = {
/* Function keys. */
{ "F1", KEYC_F1 },
{ "F2", KEYC_F2 },
{ "F3", KEYC_F3 },
{ "F4", KEYC_F4 },
{ "F5", KEYC_F5 },
{ "F6", KEYC_F6 },
{ "F7", KEYC_F7 },
{ "F8", KEYC_F8 },
{ "F9", KEYC_F9 },
{ "F10", KEYC_F10 },
{ "F11", KEYC_F11 },
{ "F12", KEYC_F12 },
{ "IC", KEYC_IC },
{ "Insert", KEYC_IC },
{ "DC", KEYC_DC },
{ "Delete", KEYC_DC },
{ "Home", KEYC_HOME },
{ "End", KEYC_END },
{ "NPage", KEYC_NPAGE },
{ "PageDown", KEYC_NPAGE },
{ "PgDn", KEYC_NPAGE },
{ "PPage", KEYC_PPAGE },
{ "PageUp", KEYC_PPAGE },
{ "PgUp", KEYC_PPAGE },
{ "Tab", '\011' },
{ "BTab", KEYC_BTAB },
{ "Space", ' ' },
{ "BSpace", KEYC_BSPACE },
{ "Enter", '\r' },
{ "Escape", '\033' },
/* Arrow keys. */
{ "Up", KEYC_UP },
{ "Down", KEYC_DOWN },
{ "Left", KEYC_LEFT },
{ "Right", KEYC_RIGHT },
/* Numeric keypad. */
{ "KP/", KEYC_KP_SLASH },
{ "KP*", KEYC_KP_STAR },
{ "KP-", KEYC_KP_MINUS },
{ "KP7", KEYC_KP_SEVEN },
{ "KP8", KEYC_KP_EIGHT },
{ "KP9", KEYC_KP_NINE },
{ "KP+", KEYC_KP_PLUS },
{ "KP4", KEYC_KP_FOUR },
{ "KP5", KEYC_KP_FIVE },
{ "KP6", KEYC_KP_SIX },
{ "KP1", KEYC_KP_ONE },
{ "KP2", KEYC_KP_TWO },
{ "KP3", KEYC_KP_THREE },
{ "KPEnter", KEYC_KP_ENTER },
{ "KP0", KEYC_KP_ZERO },
{ "KP.", KEYC_KP_PERIOD },
/* Mouse keys. */
KEYC_MOUSE_STRING(MOUSEDOWN1, MouseDown1),
KEYC_MOUSE_STRING(MOUSEDOWN2, MouseDown2),
KEYC_MOUSE_STRING(MOUSEDOWN3, MouseDown3),
KEYC_MOUSE_STRING(MOUSEUP1, MouseUp1),
KEYC_MOUSE_STRING(MOUSEUP2, MouseUp2),
KEYC_MOUSE_STRING(MOUSEUP3, MouseUp3),
KEYC_MOUSE_STRING(MOUSEDRAG1, MouseDrag1),
KEYC_MOUSE_STRING(MOUSEDRAG2, MouseDrag2),
KEYC_MOUSE_STRING(MOUSEDRAG3, MouseDrag3),
KEYC_MOUSE_STRING(MOUSEDRAGEND1, MouseDragEnd1),
KEYC_MOUSE_STRING(MOUSEDRAGEND2, MouseDragEnd2),
KEYC_MOUSE_STRING(MOUSEDRAGEND3, MouseDragEnd3),
KEYC_MOUSE_STRING(WHEELUP, WheelUp),
KEYC_MOUSE_STRING(WHEELDOWN, WheelDown),
KEYC_MOUSE_STRING(DOUBLECLICK1, DoubleClick1),
KEYC_MOUSE_STRING(DOUBLECLICK2, DoubleClick2),
KEYC_MOUSE_STRING(DOUBLECLICK3, DoubleClick3),
KEYC_MOUSE_STRING(TRIPLECLICK1, TripleClick1),
KEYC_MOUSE_STRING(TRIPLECLICK2, TripleClick2),
KEYC_MOUSE_STRING(TRIPLECLICK3, TripleClick3),
};
/* Find key string in table. */
static key_code
key_string_search_table(const char *string)
{
u_int i, user;
for (i = 0; i < nitems(key_string_table); i++) {
if (strcasecmp(string, key_string_table[i].string) == 0)
return (key_string_table[i].key);
}
if (sscanf(string, "User%u", &user) == 1 && user < KEYC_NUSER)
return (KEYC_USER + user);
return (KEYC_UNKNOWN);
}
/* Find modifiers. */
static key_code
key_string_get_modifiers(const char **string)
{
key_code modifiers;
modifiers = 0;
while (((*string)[0] != '\0') && (*string)[1] == '-') {
switch ((*string)[0]) {
case 'C':
case 'c':
modifiers |= KEYC_CTRL;
break;
case 'M':
case 'm':
modifiers |= KEYC_ESCAPE;
break;
case 'S':
case 's':
modifiers |= KEYC_SHIFT;
break;
default:
*string = NULL;
return (0);
}
*string += 2;
}
return (modifiers);
}
/* Lookup a string and convert to a key value. */
key_code
key_string_lookup_string(const char *string)
{
static const char *other = "!#()+,-.0123456789:;<=>?'\r\t";
key_code key;
u_int u;
key_code modifiers;
struct utf8_data ud;
u_int i;
enum utf8_state more;
wchar_t wc;
/* Is this no key or any key? */
if (strcasecmp(string, "None") == 0)
return (KEYC_NONE);
if (strcasecmp(string, "Any") == 0)
return (KEYC_ANY);
/* Is this a hexadecimal value? */
if (string[0] == '0' && string[1] == 'x') {
if (sscanf(string + 2, "%x", &u) != 1)
return (KEYC_UNKNOWN);
if (u > 0x1fffff)
return (KEYC_UNKNOWN);
return (u);
}
/* Check for modifiers. */
modifiers = 0;
if (string[0] == '^' && string[1] != '\0') {
modifiers |= KEYC_CTRL;
string++;
}
modifiers |= key_string_get_modifiers(&string);
if (string == NULL || string[0] == '\0')
return (KEYC_UNKNOWN);
/* Is this a standard ASCII key? */
if (string[1] == '\0' && (u_char)string[0] <= 127) {
key = (u_char)string[0];
if (key < 32 || key == 127)
return (KEYC_UNKNOWN);
} else {
/* Try as a UTF-8 key. */
if ((more = utf8_open(&ud, (u_char)*string)) == UTF8_MORE) {
if (strlen(string) != ud.size)
return (KEYC_UNKNOWN);
for (i = 1; i < ud.size; i++)
more = utf8_append(&ud, (u_char)string[i]);
if (more != UTF8_DONE)
return (KEYC_UNKNOWN);
if (utf8_combine(&ud, &wc) != UTF8_DONE)
return (KEYC_UNKNOWN);
return (wc | modifiers);
}
/* Otherwise look the key up in the table. */
key = key_string_search_table(string);
if (key == KEYC_UNKNOWN)
return (KEYC_UNKNOWN);
}
/* Convert the standard control keys. */
if (key < KEYC_BASE && (modifiers & KEYC_CTRL) && !strchr(other, key)) {
if (key >= 97 && key <= 122)
key -= 96;
else if (key >= 64 && key <= 95)
key -= 64;
else if (key == 32)
key = 0;
else if (key == 63)
key = KEYC_BSPACE;
else
return (KEYC_UNKNOWN);
modifiers &= ~KEYC_CTRL;
}
return (key | modifiers);
}
/* Convert a key code into string format, with prefix if necessary. */
const char *
key_string_lookup_key(key_code key)
{
static char out[32];
char tmp[8];
u_int i;
struct utf8_data ud;
size_t off;
*out = '\0';
/* Handle no key. */
if (key == KEYC_NONE)
return ("None");
/* Handle special keys. */
if (key == KEYC_UNKNOWN)
return ("Unknown");
if (key == KEYC_ANY)
return ("Any");
if (key == KEYC_FOCUS_IN)
return ("FocusIn");
if (key == KEYC_FOCUS_OUT)
return ("FocusOut");
if (key == KEYC_PASTE_START)
return ("PasteStart");
if (key == KEYC_PASTE_END)
return ("PasteEnd");
if (key == KEYC_MOUSE)
return ("Mouse");
if (key == KEYC_DRAGGING)
return ("Dragging");
if (key == KEYC_MOUSEMOVE_PANE)
return ("MouseMovePane");
if (key == KEYC_MOUSEMOVE_STATUS)
return ("MouseMoveStatus");
if (key == KEYC_MOUSEMOVE_STATUS_LEFT)
return ("MouseMoveStatusLeft");
if (key == KEYC_MOUSEMOVE_STATUS_RIGHT)
return ("MouseMoveStatusRight");
if (key == KEYC_MOUSEMOVE_BORDER)
return ("MouseMoveBorder");
if (key >= KEYC_USER && key < KEYC_USER + KEYC_NUSER) {
snprintf(out, sizeof out, "User%u", (u_int)(key - KEYC_USER));
return (out);
}
/*
* Special case: display C-@ as C-Space. Could do this below in
* the (key >= 0 && key <= 32), but this way we let it be found
* in key_string_table, for the unlikely chance that we might
* change its name.
*/
if ((key & KEYC_MASK_KEY) == 0)
key = ' ' | KEYC_CTRL | (key & KEYC_MASK_MOD);
/* Fill in the modifiers. */
if (key & KEYC_CTRL)
strlcat(out, "C-", sizeof out);
if (key & KEYC_ESCAPE)
strlcat(out, "M-", sizeof out);
if (key & KEYC_SHIFT)
strlcat(out, "S-", sizeof out);
key &= KEYC_MASK_KEY;
/* Try the key against the string table. */
for (i = 0; i < nitems(key_string_table); i++) {
if (key == key_string_table[i].key)
break;
}
if (i != nitems(key_string_table)) {
strlcat(out, key_string_table[i].string, sizeof out);
return (out);
}
/* Is this a UTF-8 key? */
if (key > 127 && key < KEYC_BASE) {
if (utf8_split(key, &ud) == UTF8_DONE) {
off = strlen(out);
memcpy(out + off, ud.data, ud.size);
out[off + ud.size] = '\0';
return (out);
}
}
/* Invalid keys are errors. */
if (key == 127 || key > 255) {
snprintf(out, sizeof out, "Invalid#%llx", key);
return (out);
}
/* Check for standard or control key. */
if (key <= 32) {
if (key == 0 || key > 26)
xsnprintf(tmp, sizeof tmp, "C-%c", (int)(64 + key));
else
xsnprintf(tmp, sizeof tmp, "C-%c", (int)(96 + key));
} else if (key >= 32 && key <= 126) {
tmp[0] = key;
tmp[1] = '\0';
} else if (key >= 128)
xsnprintf(tmp, sizeof tmp, "\\%llo", key);
strlcat(out, tmp, sizeof out);
return (out);
}
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