/* See LICENSE for license details. */ #include #include #include #include /* for BTN_* definitions */ #include "wld/wayland.h" #include "wld/wld.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "arg.h" #include "xdg-shell-unstable-v5-client-protocol.h" #include "xdg-shell-unstable-v6-client-protocol.h" char *argv0; #if defined(__linux) #include #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) #include #elif defined(__FreeBSD__) || defined(__DragonFly__) #include #endif /* Arbitrary sizes */ #define UTF_INVALID 0xFFFD #define UTF_SIZ 4 #define ESC_BUF_SIZ (128 * UTF_SIZ) #define ESC_ARG_SIZ 16 #define STR_BUF_SIZ ESC_BUF_SIZ #define STR_ARG_SIZ ESC_ARG_SIZ #define DRAW_BUF_SIZ 20 * 1024 #define XK_ANY_MOD UINT_MAX #define XK_NO_MOD 0 #define XK_SWITCH_MOD (1 << 13) #define MOD_MASK_ANY UINT_MAX #define MOD_MASK_NONE 0 #define MOD_MASK_CTRL (1 << 0) #define MOD_MASK_ALT (1 << 1) #define MOD_MASK_SHIFT (1 << 2) #define MOD_MASK_LOGO (1 << 3) #define AXIS_VERTICAL WL_POINTER_AXIS_VERTICAL_SCROLL #define AXIS_HORIZONTAL WL_POINTER_AXIS_HORIZONTAL_SCROLL /* macros */ #define MIN(a, b) ((a) < (b) ? (a) : (b)) #define MAX(a, b) ((a) < (b) ? (b) : (a)) #define LEN(a) (sizeof(a) / sizeof(a)[0]) #define DEFAULT(a, b) (a) = (a) ? (a) : (b) #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b)) #define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177') #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) #define ISDELIM(u) (utf8strchr(worddelimiters, u) != NULL) #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) #define ATTRCMP(a, b) \ ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg) #define IS_SET(flag) ((term.mode & (flag)) != 0) #define TIMEDIFF(t1, t2) \ ((t1.tv_sec - t2.tv_sec) * 1000 + (t1.tv_nsec - t2.tv_nsec) / 1E6) #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit))) #define TRUECOLOR(r, g, b) (1 << 24 | (r) << 16 | (g) << 8 | (b)) #define IS_TRUECOL(x) (1 << 24 & (x)) #define TRUERED(x) (((x)&0xff0000) >> 8) #define TRUEGREEN(x) (((x)&0xff00)) #define TRUEBLUE(x) (((x)&0xff) << 8) enum glyph_attribute { ATTR_NULL = 0, ATTR_BOLD = 1 << 0, ATTR_FAINT = 1 << 1, ATTR_ITALIC = 1 << 2, ATTR_UNDERLINE = 1 << 3, ATTR_BLINK = 1 << 4, ATTR_REVERSE = 1 << 5, ATTR_INVISIBLE = 1 << 6, ATTR_STRUCK = 1 << 7, ATTR_WRAP = 1 << 8, ATTR_WIDE = 1 << 9, ATTR_WDUMMY = 1 << 10, ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT, }; enum cursor_movement { CURSOR_SAVE, CURSOR_LOAD }; enum cursor_state { CURSOR_DEFAULT = 0, CURSOR_WRAPNEXT = 1, CURSOR_ORIGIN = 2 }; enum term_mode { MODE_WRAP = 1 << 0, MODE_INSERT = 1 << 1, MODE_APPKEYPAD = 1 << 2, MODE_ALTSCREEN = 1 << 3, MODE_CRLF = 1 << 4, MODE_MOUSEBTN = 1 << 5, MODE_MOUSEMOTION = 1 << 6, MODE_REVERSE = 1 << 7, MODE_KBDLOCK = 1 << 8, MODE_HIDE = 1 << 9, MODE_ECHO = 1 << 10, MODE_APPCURSOR = 1 << 11, MODE_MOUSESGR = 1 << 12, MODE_8BIT = 1 << 13, MODE_BLINK = 1 << 14, MODE_FBLINK = 1 << 15, MODE_FOCUS = 1 << 16, MODE_MOUSEX10 = 1 << 17, MODE_MOUSEMANY = 1 << 18, MODE_BRCKTPASTE = 1 << 19, MODE_PRINT = 1 << 20, MODE_MOUSE = MODE_MOUSEBTN | MODE_MOUSEMOTION | MODE_MOUSEX10 | MODE_MOUSEMANY, }; enum charset { CS_GRAPHIC0, CS_GRAPHIC1, CS_UK, CS_USA, CS_MULTI, CS_GER, CS_FIN }; enum escape_state { ESC_START = 1, ESC_CSI = 2, ESC_STR = 4, /* DCS, OSC, PM, APC */ ESC_ALTCHARSET = 8, ESC_STR_END = 16, /* a final string was encountered */ ESC_TEST = 32, /* Enter in test mode */ }; enum window_state { WIN_VISIBLE = 1, WIN_FOCUSED = 2 }; enum selection_mode { SEL_IDLE = 0, SEL_EMPTY = 1, SEL_READY = 2 }; enum selection_type { SEL_REGULAR = 1, SEL_RECTANGULAR = 2 }; enum selection_snap { SNAP_WORD = 1, SNAP_LINE = 2 }; typedef unsigned char uchar; typedef unsigned int uint; typedef unsigned long ulong; typedef unsigned short ushort; typedef uint_least32_t Rune; typedef struct { Rune u; /* character code */ ushort mode; /* attribute flags */ uint32_t fg; /* foreground */ uint32_t bg; /* background */ } Glyph; typedef Glyph *Line; typedef struct { Glyph attr; /* current char attributes */ int x; int y; char state; } TCursor; /* CSI Escape sequence structs */ /* ESC '[' [[ [] [;]] []] */ typedef struct { char buf[ESC_BUF_SIZ]; /* raw string */ int len; /* raw string length */ char priv; int arg[ESC_ARG_SIZ]; int narg; /* nb of args */ char mode[2]; } CSIEscape; /* STR Escape sequence structs */ /* ESC type [[ [] [;]] ] ESC '\' */ typedef struct { char type; /* ESC type ... */ char buf[STR_BUF_SIZ]; /* raw string */ int len; /* raw string length */ char *args[STR_ARG_SIZ]; int narg; /* nb of args */ } STREscape; /* Internal representation of the screen */ typedef struct { int row; /* nb row */ int col; /* nb col */ Line *line; /* screen */ Line *alt; /* alternate screen */ int *dirty; /* dirtyness of lines */ TCursor c; /* cursor */ int top; /* top scroll limit */ int bot; /* bottom scroll limit */ int mode; /* terminal mode flags */ int esc; /* escape state flags */ char trantbl[4]; /* charset table translation */ int charset; /* current charset */ int icharset; /* selected charset for sequence */ int numlock; /* lock numbers in keyboard */ int *tabs; } Term; typedef struct { struct xkb_context *ctx; struct xkb_keymap *keymap; struct xkb_state *state; xkb_mod_index_t ctrl, alt, shift, logo; unsigned int mods; } XKB; typedef struct { struct wl_display *dpy; struct wl_compositor *cmp; struct wl_shm *shm; struct wl_seat *seat; struct wl_keyboard *keyboard; struct wl_pointer *pointer; struct wl_data_device_manager *datadevmanager; struct wl_data_device *datadev; struct wl_data_offer *seloffer; struct wl_surface *surface; struct wl_buffer *buffer; struct zxdg_shell_v6 *xdgshell_v6; struct wl_shell *shell; struct wl_shell_surface *shellsurf; struct xdg_shell *xdgshell; struct xdg_surface *xdgsurface; struct wl_surface *popupsurface; struct zxdg_surface_v6 *xdgsurface_v6; struct zxdg_toplevel_v6 *xdgtoplevel; XKB xkb; bool configured; int px, py; /* pointer x and y */ int tw, th; /* tty width and height */ int w, h; /* window width and height */ int ch; /* char height */ int cw; /* char width */ int vis; char state; /* focus, redraw, visible */ int cursor; /* cursor style */ struct wl_callback *framecb; } Wayland; typedef struct { struct wld_context *ctx; struct wld_font_context *fontctx; struct wld_renderer *renderer; struct wld_buffer *buffer, *oldbuffer; } WLD; typedef struct { struct wl_cursor_theme *theme; struct wl_cursor *cursor; struct wl_surface *surface; } Cursor; typedef struct { uint b; uint mask; char *s; } Mousekey; typedef struct { int axis; int dir; uint mask; char s[ESC_BUF_SIZ]; } Axiskey; typedef struct { xkb_keysym_t k; uint mask; char *s; /* three valued logic variables: 0 indifferent, 1 on, -1 off */ signed char appkey; /* application keypad */ signed char appcursor; /* application cursor */ signed char crlf; /* crlf mode */ } Key; typedef struct { int mode; int type; int snap; /* * Selection variables: * nb – normalized coordinates of the beginning of the selection * ne – normalized coordinates of the end of the selection * ob – original coordinates of the beginning of the selection * oe – original coordinates of the end of the selection */ struct { int x, y; } nb, ne, ob, oe; char *primary; struct wl_data_source *source; int alt; uint32_t tclick1, tclick2; } Selection; typedef union { int i; uint ui; float f; const void *v; } Arg; typedef struct { uint mod; xkb_keysym_t keysym; void (*func)(const Arg *); const Arg arg; } Shortcut; typedef struct { char str[32]; uint32_t key; int len; bool started; struct timespec last; } Repeat; /* function definitions used in config.h */ static void numlock(const Arg *); static void selpaste(const Arg *); static void wlzoom(const Arg *); static void wlzoomabs(const Arg *); static void wlzoomreset(const Arg *); static void printsel(const Arg *); static void printscreen(const Arg *); static void toggleprinter(const Arg *); /* Config.h for applying patches and the configuration. */ #include "config.h" /* Font structure */ typedef struct { int height; int width; int ascent; int descent; short lbearing; short rbearing; struct wld_font *match; FcFontSet *set; FcPattern *pattern; } Font; /* Drawing Context */ typedef struct { uint32_t col[MAX(LEN(colorname), 256)]; Font font, bfont, ifont, ibfont; } DC; static void die(const char *, ...); static void draw(void); static void redraw(void); static void drawregion(int, int, int, int); static void execsh(void); static void stty(void); static void sigchld(int); static void run(void); static void cresize(int, int); static void csidump(void); static void csihandle(void); static void csiparse(void); static void csireset(void); static int eschandle(uchar); static void strdump(void); static void strhandle(void); static void strparse(void); static void strreset(void); static int tattrset(int); static void tprinter(char *, size_t); static void tdumpsel(void); static void tdumpline(int); static void tdump(void); static void tclearregion(int, int, int, int); static void tcursor(int); static void tdeletechar(int); static void tdeleteline(int); static void tinsertblank(int); static void tinsertblankline(int); static int tlinelen(int); static void tmoveto(int, int); static void tmoveato(int, int); static void tnew(int, int); static void tnewline(int); static void tputtab(int); static void tputc(Rune); static void treset(void); static void tresize(int, int); static void tscrollup(int, int); static void tscrolldown(int, int); static void tsetattr(int *, int); static void tsetchar(Rune, Glyph *, int, int); static void tsetscroll(int, int); static void tswapscreen(void); static void tsetdirt(int, int); static void tsetdirtattr(int); static void tsetmode(int, int, int *, int); static void tfulldirt(void); static void techo(Rune); static void tcontrolcode(uchar); static void tdectest(char); static uint32_t tdefcolor(int *, int *, int); static void tdeftran(char); static inline int match(uint, uint); static void ttynew(void); static void ttyread(void); static void ttyresize(void); static void ttysend(char *, size_t); static void ttywrite(const char *, size_t); static void tstrsequence(uchar); static inline uchar sixd_to_8bit(int); static void wldraws(char *, Glyph, int, int, int, int); static void wldrawglyph(Glyph, int, int); static void wlclear(int, int, int, int); static void wldrawcursor(void); static void wlinit(void); static void wlloadcols(void); static int wlsetcolorname(int, const char *); static void wlloadcursor(void); static int wlloadfont(Font *, FcPattern *); static void wlloadfonts(char *, double); static void wlsettitle(char *); static void wlresettitle(void); static void wlseturgency(int); static void wlsetsel(char *, uint32_t); static void wltermclear(int, int, int, int); static void wlunloadfont(Font *f); static void wlunloadfonts(void); static void wlresize(int, int); static void regglobal(void *, struct wl_registry *, uint32_t, const char *, uint32_t); static void regglobalremove(void *, struct wl_registry *, uint32_t); static void surfenter(void *, struct wl_surface *, struct wl_output *); static void surfleave(void *, struct wl_surface *, struct wl_output *); static void framedone(void *, struct wl_callback *, uint32_t); static void kbdkeymap(void *, struct wl_keyboard *, uint32_t, int32_t, uint32_t); static void kbdenter(void *, struct wl_keyboard *, uint32_t, struct wl_surface *, struct wl_array *); static void kbdleave(void *, struct wl_keyboard *, uint32_t, struct wl_surface *); static void kbdkey(void *, struct wl_keyboard *, uint32_t, uint32_t, uint32_t, uint32_t); static void kbdmodifiers(void *, struct wl_keyboard *, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t); static void kbdrepeatinfo(void *, struct wl_keyboard *, int32_t, int32_t); static void ptrenter(void *, struct wl_pointer *, uint32_t, struct wl_surface *, wl_fixed_t, wl_fixed_t); static void ptrleave(void *, struct wl_pointer *, uint32_t, struct wl_surface *); static void ptrmotion(void *, struct wl_pointer *, uint32_t, wl_fixed_t, wl_fixed_t); static void ptrbutton(void *, struct wl_pointer *, uint32_t, uint32_t, uint32_t, uint32_t); static void ptraxis(void *, struct wl_pointer *, uint32_t, uint32_t, wl_fixed_t); static void shellsurfping(void *, struct wl_shell_surface *, uint32_t); static void shellsurfconfigure(void *, struct wl_shell_surface *, uint32_t, int32_t, int32_t); static void shellsurfpopupdone(void *, struct wl_shell_surface *); static void xdgshellv6ping(void *, struct zxdg_shell_v6 *, uint32_t); static void xdgsurfv6configure(void *, struct zxdg_surface_v6 *, uint32_t); static void xdgsurfconfigure(void *, struct xdg_surface *, int32_t, int32_t, struct wl_array *, uint32_t); static void xdgsurfclose(void *, struct xdg_surface *); static void xdgtopconfigure(void *, struct zxdg_toplevel_v6 *, int32_t, int32_t, struct wl_array *); static void xdgtopclose(void *, struct zxdg_toplevel_v6 *); static void xdgshellping(void *, struct xdg_shell *, uint32_t); static void datadevoffer(void *, struct wl_data_device *, struct wl_data_offer *); static void datadeventer(void *, struct wl_data_device *, uint32_t, struct wl_surface *, wl_fixed_t, wl_fixed_t, struct wl_data_offer *); static void datadevleave(void *, struct wl_data_device *); static void datadevmotion(void *, struct wl_data_device *, uint32_t, wl_fixed_t x, wl_fixed_t y); static void datadevdrop(void *, struct wl_data_device *); static void datadevselection(void *, struct wl_data_device *, struct wl_data_offer *); static void dataofferoffer(void *, struct wl_data_offer *, const char *); static void datasrctarget(void *, struct wl_data_source *, const char *); static void datasrcsend(void *, struct wl_data_source *, const char *, int32_t); static void datasrccancelled(void *, struct wl_data_source *); static void selinit(void); static void selnormalize(void); static inline int selected(int, int); static char *getsel(void); static void selcopy(uint32_t); static void selscroll(int, int); static void selsnap(int *, int *, int); static int x2col(int); static int y2row(int); static size_t utf8decode(char *, Rune *, size_t); static Rune utf8decodebyte(char, size_t *); static size_t utf8encode(Rune, char *); static char utf8encodebyte(Rune, size_t); static char *utf8strchr(char *s, Rune u); static size_t utf8validate(Rune *, size_t); static ssize_t xwrite(int, const char *, size_t); static void *xmalloc(size_t); static void *xrealloc(void *, size_t); static char *xstrdup(char *); static void usage(void); static struct wl_registry_listener reglistener = {regglobal, regglobalremove}; static struct wl_surface_listener surflistener = {surfenter, surfleave}; static struct wl_callback_listener framelistener = {framedone}; static struct wl_keyboard_listener kbdlistener = { kbdkeymap, kbdenter, kbdleave, kbdkey, kbdmodifiers, kbdrepeatinfo}; static struct wl_pointer_listener ptrlistener = {ptrenter, ptrleave, ptrmotion, ptrbutton, ptraxis}; static struct zxdg_shell_v6_listener shell_v6_listener = {xdgshellv6ping}; static struct zxdg_surface_v6_listener surf_v6_listener = {xdgsurfv6configure}; static struct xdg_shell_listener shell_listener = {xdgshellping}; static struct wl_shell_surface_listener shellsurf_listener = { shellsurfping, shellsurfconfigure, shellsurfpopupdone}; static struct xdg_surface_listener xdgsurflistener = {xdgsurfconfigure, xdgsurfclose}; static struct zxdg_toplevel_v6_listener xdgtoplevellistener = {xdgtopconfigure, xdgtopclose}; static struct wl_data_device_listener datadevlistener = { datadevoffer, datadeventer, datadevleave, datadevmotion, datadevdrop, datadevselection}; static struct wl_data_offer_listener dataofferlistener = {dataofferoffer}; static struct wl_data_source_listener datasrclistener = { datasrctarget, datasrcsend, datasrccancelled}; /* Globals */ static DC dc; static Wayland wl; static WLD wld; static Cursor cursor; static Term term; static CSIEscape csiescseq; static STREscape strescseq; static int cmdfd; static pid_t pid; static Selection sel; static Repeat repeat; static bool needdraw = true; static int iofd = 1; static char **opt_cmd = NULL; static char *opt_io = NULL; static char *opt_title = NULL; static char *opt_embed = NULL; static char *opt_class = NULL; static char *opt_font = NULL; static char *opt_line = NULL; static int oldbutton = 3; /* button event on startup: 3 = release */ static int oldx, oldy; static char *usedfont = NULL; static double usedfontsize = 0; static double defaultfontsize = 0; static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0}; static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; static Rune utfmin[UTF_SIZ + 1] = {0, 0, 0x80, 0x800, 0x10000}; static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; /* Font Ring Cache */ enum { FRC_NORMAL, FRC_ITALIC, FRC_BOLD, FRC_ITALICBOLD }; typedef struct { struct wld_font *font; int flags; Rune unicodep; } Fontcache; /* Fontcache is an array now. A new font will be appended to the array. */ static Fontcache frc[16]; static int frclen = 0; ssize_t xwrite(int fd, const char *s, size_t len) { size_t aux = len; ssize_t r; while (len > 0) { r = write(fd, s, len); if (r < 0) return r; len -= r; s += r; } return aux; } void *xmalloc(size_t len) { void *p = malloc(len); if (!p) die("Out of memory\n"); return p; } void *xrealloc(void *p, size_t len) { if ((p = realloc(p, len)) == NULL) die("Out of memory\n"); return p; } char *xstrdup(char *s) { if ((s = strdup(s)) == NULL) die("Out of memory\n"); return s; } size_t utf8decode(char *c, Rune *u, size_t clen) { size_t i, j, len, type; Rune udecoded; *u = UTF_INVALID; if (!clen) return 0; udecoded = utf8decodebyte(c[0], &len); if (!BETWEEN(len, 1, UTF_SIZ)) return 1; for (i = 1, j = 1; i < clen && j < len; ++i, ++j) { udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type); if (type != 0) return j; } if (j < len) return 0; *u = udecoded; utf8validate(u, len); return len; } Rune utf8decodebyte(char c, size_t *i) { for (*i = 0; *i < LEN(utfmask); ++(*i)) if (((uchar)c & utfmask[*i]) == utfbyte[*i]) return (uchar)c & ~utfmask[*i]; return 0; } size_t utf8encode(Rune u, char *c) { size_t len, i; len = utf8validate(&u, 0); if (len > UTF_SIZ) return 0; for (i = len - 1; i != 0; --i) { c[i] = utf8encodebyte(u, 0); u >>= 6; } c[0] = utf8encodebyte(u, len); return len; } char utf8encodebyte(Rune u, size_t i) { return utfbyte[i] | (u & ~utfmask[i]); } char *utf8strchr(char *s, Rune u) { Rune r; size_t i, j, len; len = strlen(s); for (i = 0, j = 0; i < len; i += j) { if (!(j = utf8decode(&s[i], &r, len - i))) break; if (r == u) return &(s[i]); } return NULL; } size_t utf8validate(Rune *u, size_t i) { if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF)) *u = UTF_INVALID; for (i = 1; *u > utfmax[i]; ++i) ; return i; } void selinit(void) { sel.tclick1 = 0; sel.tclick2 = 0; sel.mode = SEL_IDLE; sel.ob.x = -1; sel.primary = NULL; sel.source = NULL; } int x2col(int x) { x -= borderpx; x /= wl.cw; return LIMIT(x, 0, term.col - 1); } int y2row(int y) { y -= borderpx; y /= wl.ch; return LIMIT(y, 0, term.row - 1); } int tlinelen(int y) { int i = term.col; if (term.line[y][i - 1].mode & ATTR_WRAP) return i; while (i > 0 && term.line[y][i - 1].u == ' ') --i; return i; } void selnormalize(void) { int i; if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) { sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x; sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x; } else { sel.nb.x = MIN(sel.ob.x, sel.oe.x); sel.ne.x = MAX(sel.ob.x, sel.oe.x); } sel.nb.y = MIN(sel.ob.y, sel.oe.y); sel.ne.y = MAX(sel.ob.y, sel.oe.y); selsnap(&sel.nb.x, &sel.nb.y, -1); selsnap(&sel.ne.x, &sel.ne.y, +1); /* expand selection over line breaks */ if (sel.type == SEL_RECTANGULAR) return; i = tlinelen(sel.nb.y); if (i < sel.nb.x) sel.nb.x = i; if (tlinelen(sel.ne.y) <= sel.ne.x) sel.ne.x = term.col - 1; } int selected(int x, int y) { if (sel.mode == SEL_EMPTY) return 0; if (sel.type == SEL_RECTANGULAR) return BETWEEN(y, sel.nb.y, sel.ne.y) && BETWEEN(x, sel.nb.x, sel.ne.x); return BETWEEN(y, sel.nb.y, sel.ne.y) && (y != sel.nb.y || x >= sel.nb.x) && (y != sel.ne.y || x <= sel.ne.x); } void selsnap(int *x, int *y, int direction) { int newx, newy, xt, yt; int delim, prevdelim; Glyph *gp, *prevgp; switch (sel.snap) { case SNAP_WORD: /* * Snap around if the word wraps around at the end or * beginning of a line. */ prevgp = &term.line[*y][*x]; prevdelim = ISDELIM(prevgp->u); for (;;) { newx = *x + direction; newy = *y; if (!BETWEEN(newx, 0, term.col - 1)) { newy += direction; newx = (newx + term.col) % term.col; if (!BETWEEN(newy, 0, term.row - 1)) break; if (direction > 0) yt = *y, xt = *x; else yt = newy, xt = newx; if (!(term.line[yt][xt].mode & ATTR_WRAP)) break; } if (newx >= tlinelen(newy)) break; gp = &term.line[newy][newx]; delim = ISDELIM(gp->u); if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim || (delim && gp->u != prevgp->u))) break; *x = newx; *y = newy; prevgp = gp; prevdelim = delim; } break; case SNAP_LINE: /* * Snap around if the the previous line or the current one * has set ATTR_WRAP at its end. Then the whole next or * previous line will be selected. */ *x = (direction < 0) ? 0 : term.col - 1; if (direction < 0) { for (; *y > 0; *y += direction) { if (!(term.line[*y - 1][term.col - 1].mode & ATTR_WRAP)) { break; } } } else if (direction > 0) { for (; *y < term.row - 1; *y += direction) { if (!(term.line[*y][term.col - 1].mode & ATTR_WRAP)) { break; } } } break; } } void getbuttoninfo(void) { int type; uint state = wl.xkb.mods & ~forceselmod; sel.alt = IS_SET(MODE_ALTSCREEN); sel.oe.x = x2col(wl.px); sel.oe.y = y2row(wl.py); selnormalize(); sel.type = SEL_REGULAR; for (type = 1; type < LEN(selmasks); ++type) { if (match(selmasks[type], state)) { sel.type = type; break; } } } void wlmousereport(int button, bool release, int x, int y) { int len; char buf[40]; if (!IS_SET(MODE_MOUSEX10)) { button += ((wl.xkb.mods & MOD_MASK_SHIFT) ? 4 : 0) + ((wl.xkb.mods & MOD_MASK_LOGO) ? 8 : 0) + ((wl.xkb.mods & MOD_MASK_CTRL) ? 16 : 0); } if (IS_SET(MODE_MOUSESGR)) { len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c", button, x + 1, y + 1, release ? 'm' : 'M'); } else if (x < 223 && y < 223) { len = snprintf(buf, sizeof(buf), "\033[M%c%c%c", 32 + button, 32 + x + 1, 32 + y + 1); } else { return; } ttywrite(buf, len); } void wlmousereportbutton(uint32_t button, uint32_t state) { bool release = state == WL_POINTER_BUTTON_STATE_RELEASED; if (!IS_SET(MODE_MOUSESGR) && release) { button = 3; } else { switch (button) { case BTN_LEFT: button = 0; break; case BTN_MIDDLE: button = 1; break; case BTN_RIGHT: button = 2; break; } } oldbutton = release ? 3 : button; /* don't report release events when in X10 mode */ if (IS_SET(MODE_MOUSEX10) && release) { return; } wlmousereport(button, release, oldx, oldy); } void wlmousereportmotion(wl_fixed_t fx, wl_fixed_t fy) { int x = x2col(wl_fixed_to_int(fx)), y = y2row(wl_fixed_to_int(fy)); if (x == oldx && y == oldy) return; if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY)) return; /* MOUSE_MOTION: no reporting if no button is pressed */ if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3) return; oldx = x; oldy = y; wlmousereport(oldbutton + 32, false, x, y); } void wlmousereportaxis(uint32_t axis, wl_fixed_t amount) { wlmousereport(64 + (axis == AXIS_VERTICAL ? 4 : 6) + (amount > 0 ? 1 : 0), false, oldx, oldy); } char *getsel(void) { char *str, *ptr; int y, bufsize, lastx, linelen; Glyph *gp, *last; if (sel.ob.x == -1) return NULL; bufsize = (term.col + 1) * (sel.ne.y - sel.nb.y + 1) * UTF_SIZ; ptr = str = xmalloc(bufsize); /* append every set & selected glyph to the selection */ for (y = sel.nb.y; y <= sel.ne.y; y++) { linelen = tlinelen(y); if (sel.type == SEL_RECTANGULAR) { gp = &term.line[y][sel.nb.x]; lastx = sel.ne.x; } else { gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0]; lastx = (sel.ne.y == y) ? sel.ne.x : term.col - 1; } last = &term.line[y][MIN(lastx, linelen - 1)]; while (last >= gp && last->u == ' ') --last; for (; gp <= last; ++gp) { if (gp->mode & ATTR_WDUMMY) continue; ptr += utf8encode(gp->u, ptr); } /* * Copy and pasting of line endings is inconsistent * in the inconsistent terminal and GUI world. * The best solution seems like to produce '\n' when * something is copied from st and convert '\n' to * '\r', when something to be pasted is received by * st. * FIXME: Fix the computer world. */ if ((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP)) *ptr++ = '\n'; } *ptr = 0; return str; } void selcopy(uint32_t serial) { wlsetsel(getsel(), serial); } static inline void selwritebuf(char *buf, int len) { char *repl = buf; /* * As seen in getsel: * Line endings are inconsistent in the terminal and GUI world * copy and pasting. When receiving some selection data, * replace all '\n' with '\r'. * FIXME: Fix the computer world. */ while ((repl = memchr(repl, '\n', len))) { *repl++ = '\r'; } if (IS_SET(MODE_BRCKTPASTE)) ttywrite("\033[200~", 6); ttysend(buf, len); if (IS_SET(MODE_BRCKTPASTE)) ttywrite("\033[201~", 6); } void selpaste(const Arg *dummy) { int fds[2], len, left; char buf[BUFSIZ], *str; if (wl.seloffer) { /* check if we are pasting from ourselves */ if (sel.source) { str = sel.primary; left = strlen(sel.primary); while (left > 0) { len = MIN(sizeof buf, left); memcpy(buf, str, len); selwritebuf(buf, len); left -= len; str += len; } } else { pipe(fds); wl_data_offer_receive(wl.seloffer, "text/plain", fds[1]); wl_display_flush(wl.dpy); close(fds[1]); while ((len = read(fds[0], buf, sizeof buf)) > 0) { selwritebuf(buf, len); } close(fds[0]); } } } void selclear(void) { if (sel.ob.x == -1) return; sel.mode = SEL_IDLE; sel.ob.x = -1; tsetdirt(sel.nb.y, sel.ne.y); } void wlsetsel(char *str, uint32_t serial) { free(sel.primary); sel.primary = str; if (str) { sel.source = wl_data_device_manager_create_data_source(wl.datadevmanager); wl_data_source_add_listener(sel.source, &datasrclistener, NULL); wl_data_source_offer(sel.source, "text/plain; charset=utf-8"); } else { sel.source = NULL; } wl_data_device_set_selection(wl.datadev, sel.source, serial); } void die(const char *errstr, ...) { va_list ap; va_start(ap, errstr); vfprintf(stdout, errstr, ap); va_end(ap); exit(1); } void execsh(void) { char **args, *sh, *prog; const struct passwd *pw; errno = 0; if ((pw = getpwuid(getuid())) == NULL) { if (errno) die("getpwuid:%s\n", strerror(errno)); else die("who are you?\n"); } if ((sh = getenv("SHELL")) == NULL) sh = (pw->pw_shell[0]) ? pw->pw_shell : shell; if (opt_cmd) prog = opt_cmd[0]; else if (utmp) prog = utmp; else prog = sh; args = (opt_cmd) ? opt_cmd : (char *[]){prog, NULL}; unsetenv("COLUMNS"); unsetenv("LINES"); unsetenv("TERMCAP"); setenv("LOGNAME", pw->pw_name, 1); setenv("USER", pw->pw_name, 1); setenv("SHELL", sh, 1); setenv("HOME", pw->pw_dir, 1); setenv("TERM", termname, 1); signal(SIGCHLD, SIG_DFL); signal(SIGHUP, SIG_DFL); signal(SIGINT, SIG_DFL); signal(SIGQUIT, SIG_DFL); signal(SIGTERM, SIG_DFL); signal(SIGALRM, SIG_DFL); execvp(prog, args); _exit(1); } void sigchld(int a) { int stat; pid_t p; if ((p = waitpid(pid, &stat, WNOHANG)) < 0) die("Waiting for pid %hd failed: %s\n", pid, strerror(errno)); if (pid != p) return; if (!WIFEXITED(stat) || WEXITSTATUS(stat)) die("child finished with error '%d'\n", stat); exit(0); } void stty(void) { char cmd[_POSIX_ARG_MAX], **p, *q, *s; size_t n, siz; if ((n = strlen(stty_args)) > sizeof(cmd) - 1) die("incorrect stty parameters\n"); memcpy(cmd, stty_args, n); q = cmd + n; siz = sizeof(cmd) - n; for (p = opt_cmd; p && (s = *p); ++p) { if ((n = strlen(s)) > siz - 1) die("stty parameter length too long\n"); *q++ = ' '; q = memcpy(q, s, n); q += n; siz -= n + 1; } *q = '\0'; if (system(cmd) != 0) perror("Couldn't call stty"); } void ttynew(void) { int m, s; struct winsize w = {term.row, term.col, 0, 0}; if (opt_io) { term.mode |= MODE_PRINT; iofd = (!strcmp(opt_io, "-")) ? 1 : open(opt_io, O_WRONLY | O_CREAT, 0666); if (iofd < 0) { fprintf(stderr, "Error opening %s:%s\n", opt_io, strerror(errno)); } } if (opt_line) { if ((cmdfd = open(opt_line, O_RDWR)) < 0) die("open line failed: %s\n", strerror(errno)); close(0); dup(cmdfd); stty(); return; } /* seems to work fine on linux, openbsd and freebsd */ if (openpty(&m, &s, NULL, NULL, &w) < 0) die("openpty failed: %s\n", strerror(errno)); switch (pid = fork()) { case -1: die("fork failed\n"); break; case 0: close(iofd); setsid(); /* create a new process group */ dup2(s, 0); dup2(s, 1); dup2(s, 2); if (ioctl(s, TIOCSCTTY, NULL) < 0) die("ioctl TIOCSCTTY failed: %s\n", strerror(errno)); close(s); close(m); execsh(); break; default: close(s); cmdfd = m; signal(SIGCHLD, sigchld); break; } } void ttyread(void) { static char buf[BUFSIZ]; static int buflen = 0; char *ptr; int charsize; /* size of utf8 char in bytes */ Rune unicodep; int ret; /* append read bytes to unprocessed bytes */ if ((ret = read(cmdfd, buf + buflen, LEN(buf) - buflen)) < 0) die("Couldn't read from shell: %s\n", strerror(errno)); /* process every complete utf8 char */ buflen += ret; ptr = buf; while ((charsize = utf8decode(ptr, &unicodep, buflen))) { tputc(unicodep); ptr += charsize; buflen -= charsize; } /* keep any uncomplete utf8 char for the next call */ memmove(buf, ptr, buflen); needdraw = true; } void ttywrite(const char *s, size_t n) { fd_set wfd; struct timespec tv; ssize_t r; /* * Remember that we are using a pty, which might be a modem line. * Writing too much will clog the line. That's why we are doing this * dance. * FIXME: Migrate the world to Plan 9. */ while (n > 0) { FD_ZERO(&wfd); FD_SET(cmdfd, &wfd); tv.tv_sec = 0; tv.tv_nsec = 0; /* Check if we can write. */ if (pselect(cmdfd + 1, NULL, &wfd, NULL, &tv, NULL) < 0) { if (errno == EINTR) continue; die("select failed: %s\n", strerror(errno)); } if (!FD_ISSET(cmdfd, &wfd)) { /* No, then free some buffer space. */ ttyread(); } else { /* * Only write 256 bytes at maximum. This seems to be a * reasonable value for a serial line. Bigger values * might clog the I/O. */ r = write(cmdfd, s, (n < 256) ? n : 256); if (r < 0) { die("write error on tty: %s\n", strerror(errno)); } if (r < n) { /* * We weren't able to write out everything. * This means the buffer is getting full * again. Empty it. */ ttyread(); n -= r; s += r; } else { /* All bytes have been written. */ break; } } } } void ttysend(char *s, size_t n) { int len; Rune u; ttywrite(s, n); if (IS_SET(MODE_ECHO)) while ((len = utf8decode(s, &u, n)) > 0) { techo(u); n -= len; s += len; } } void ttyresize(void) { struct winsize w; w.ws_row = term.row; w.ws_col = term.col; w.ws_xpixel = wl.tw; w.ws_ypixel = wl.th; if (ioctl(cmdfd, TIOCSWINSZ, &w) < 0) fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno)); } int tattrset(int attr) { int i, j; for (i = 0; i < term.row - 1; i++) { for (j = 0; j < term.col - 1; j++) { if (term.line[i][j].mode & attr) return 1; } } return 0; } void tsetdirt(int top, int bot) { int i; LIMIT(top, 0, term.row - 1); LIMIT(bot, 0, term.row - 1); for (i = top; i <= bot; i++) term.dirty[i] = 1; needdraw = true; } void tsetdirtattr(int attr) { int i, j; for (i = 0; i < term.row - 1; i++) { for (j = 0; j < term.col - 1; j++) { if (term.line[i][j].mode & attr) { tsetdirt(i, i); break; } } } } void tfulldirt(void) { tsetdirt(0, term.row - 1); } void tcursor(int mode) { static TCursor c[2]; int alt = IS_SET(MODE_ALTSCREEN); if (mode == CURSOR_SAVE) { c[alt] = term.c; } else if (mode == CURSOR_LOAD) { term.c = c[alt]; tmoveto(c[alt].x, c[alt].y); } } void treset(void) { uint i; term.c = (TCursor){{.mode = ATTR_NULL, .fg = defaultfg, .bg = defaultbg}, .x = 0, .y = 0, .state = CURSOR_DEFAULT}; memset(term.tabs, 0, term.col * sizeof(*term.tabs)); for (i = tabspaces; i < term.col; i += tabspaces) term.tabs[i] = 1; term.top = 0; term.bot = term.row - 1; term.mode = MODE_WRAP; memset(term.trantbl, CS_USA, sizeof(term.trantbl)); term.charset = 0; for (i = 0; i < 2; i++) { tmoveto(0, 0); tcursor(CURSOR_SAVE); tclearregion(0, 0, term.col - 1, term.row - 1); tswapscreen(); } } void tnew(int col, int row) { term = (Term){.c = {.attr = {.fg = defaultfg, .bg = defaultbg}}}; tresize(col, row); term.numlock = 1; treset(); } void tswapscreen(void) { Line *tmp = term.line; term.line = term.alt; term.alt = tmp; term.mode ^= MODE_ALTSCREEN; tfulldirt(); } void tscrolldown(int orig, int n) { int i; Line temp; LIMIT(n, 0, term.bot - orig + 1); tsetdirt(orig, term.bot - n); tclearregion(0, term.bot - n + 1, term.col - 1, term.bot); for (i = term.bot; i >= orig + n; i--) { temp = term.line[i]; term.line[i] = term.line[i - n]; term.line[i - n] = temp; } selscroll(orig, n); } void tscrollup(int orig, int n) { int i; Line temp; LIMIT(n, 0, term.bot - orig + 1); tclearregion(0, orig, term.col - 1, orig + n - 1); tsetdirt(orig + n, term.bot); for (i = orig; i <= term.bot - n; i++) { temp = term.line[i]; term.line[i] = term.line[i + n]; term.line[i + n] = temp; } selscroll(orig, -n); } void selscroll(int orig, int n) { if (sel.ob.x == -1) return; if (BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) { if ((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) { selclear(); return; } if (sel.type == SEL_RECTANGULAR) { if (sel.ob.y < term.top) sel.ob.y = term.top; if (sel.oe.y > term.bot) sel.oe.y = term.bot; } else { if (sel.ob.y < term.top) { sel.ob.y = term.top; sel.ob.x = 0; } if (sel.oe.y > term.bot) { sel.oe.y = term.bot; sel.oe.x = term.col; } } selnormalize(); } } void tnewline(int first_col) { int y = term.c.y; if (y == term.bot) { tscrollup(term.top, 1); } else { y++; } tmoveto(first_col ? 0 : term.c.x, y); } void csiparse(void) { char *p = csiescseq.buf, *np; long int v; csiescseq.narg = 0; if (*p == '?') { csiescseq.priv = 1; p++; } csiescseq.buf[csiescseq.len] = '\0'; while (p < csiescseq.buf + csiescseq.len) { np = NULL; v = strtol(p, &np, 10); if (np == p) v = 0; if (v == LONG_MAX || v == LONG_MIN) v = -1; csiescseq.arg[csiescseq.narg++] = v; p = np; if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ) break; p++; } csiescseq.mode[0] = *p++; csiescseq.mode[1] = (p < csiescseq.buf + csiescseq.len) ? *p : '\0'; } /* for absolute user moves, when decom is set */ void tmoveato(int x, int y) { tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top : 0)); } void tmoveto(int x, int y) { int miny, maxy; if (term.c.state & CURSOR_ORIGIN) { miny = term.top; maxy = term.bot; } else { miny = 0; maxy = term.row - 1; } term.c.state &= ~CURSOR_WRAPNEXT; term.c.x = LIMIT(x, 0, term.col - 1); term.c.y = LIMIT(y, miny, maxy); } void tsetchar(Rune u, Glyph *attr, int x, int y) { static char *vt100_0[62] = { /* 0x41 - 0x7e */ "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */ 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */ 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */ 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */ "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */ "␤", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */ "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */ "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */ }; /* * The table is proudly stolen from rxvt. */ if (term.trantbl[term.charset] == CS_GRAPHIC0 && BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41]) utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ); if (term.line[y][x].mode & ATTR_WIDE) { if (x + 1 < term.col) { term.line[y][x + 1].u = ' '; term.line[y][x + 1].mode &= ~ATTR_WDUMMY; } } else if (term.line[y][x].mode & ATTR_WDUMMY) { term.line[y][x - 1].u = ' '; term.line[y][x - 1].mode &= ~ATTR_WIDE; } term.dirty[y] = 1; term.line[y][x] = *attr; term.line[y][x].u = u; } void tclearregion(int x1, int y1, int x2, int y2) { int x, y, temp; Glyph *gp; if (x1 > x2) temp = x1, x1 = x2, x2 = temp; if (y1 > y2) temp = y1, y1 = y2, y2 = temp; LIMIT(x1, 0, term.col - 1); LIMIT(x2, 0, term.col - 1); LIMIT(y1, 0, term.row - 1); LIMIT(y2, 0, term.row - 1); for (y = y1; y <= y2; y++) { term.dirty[y] = 1; for (x = x1; x <= x2; x++) { gp = &term.line[y][x]; if (selected(x, y)) selclear(); gp->fg = term.c.attr.fg; gp->bg = term.c.attr.bg; gp->mode = 0; gp->u = ' '; } } } void tdeletechar(int n) { int dst, src, size; Glyph *line; LIMIT(n, 0, term.col - term.c.x); dst = term.c.x; src = term.c.x + n; size = term.col - src; line = term.line[term.c.y]; memmove(&line[dst], &line[src], size * sizeof(Glyph)); tclearregion(term.col - n, term.c.y, term.col - 1, term.c.y); } void tinsertblank(int n) { int dst, src, size; Glyph *line; LIMIT(n, 0, term.col - term.c.x); dst = term.c.x + n; src = term.c.x; size = term.col - dst; line = term.line[term.c.y]; memmove(&line[dst], &line[src], size * sizeof(Glyph)); tclearregion(src, term.c.y, dst - 1, term.c.y); } void tinsertblankline(int n) { if (BETWEEN(term.c.y, term.top, term.bot)) tscrolldown(term.c.y, n); } void tdeleteline(int n) { if (BETWEEN(term.c.y, term.top, term.bot)) tscrollup(term.c.y, n); } uint32_t tdefcolor(int *attr, int *npar, int l) { int32_t idx = -1; uint r, g, b; switch (attr[*npar + 1]) { case 2: /* direct color in RGB space */ if (*npar + 4 >= l) { fprintf(stderr, "erresc(38): Incorrect number of parameters (%d)\n", *npar); break; } r = attr[*npar + 2]; g = attr[*npar + 3]; b = attr[*npar + 4]; *npar += 4; if (!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255)) fprintf(stderr, "erresc: bad rgb color (%u,%u,%u)\n", r, g, b); else idx = TRUECOLOR(r, g, b); break; case 5: /* indexed color */ if (*npar + 2 >= l) { fprintf(stderr, "erresc(38): Incorrect number of parameters (%d)\n", *npar); break; } *npar += 2; if (!BETWEEN(attr[*npar], 0, 255)) fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]); else idx = attr[*npar]; break; case 0: /* implemented defined (only foreground) */ case 1: /* transparent */ case 3: /* direct color in CMY space */ case 4: /* direct color in CMYK space */ default: fprintf(stderr, "erresc(38): gfx attr %d unknown\n", attr[*npar]); break; } return idx; } void tsetattr(int *attr, int l) { int i; uint32_t idx; for (i = 0; i < l; i++) { switch (attr[i]) { case 0: term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT | ATTR_ITALIC | ATTR_UNDERLINE | ATTR_BLINK | ATTR_REVERSE | ATTR_INVISIBLE | ATTR_STRUCK); term.c.attr.fg = defaultfg; term.c.attr.bg = defaultbg; break; case 1: term.c.attr.mode |= ATTR_BOLD; break; case 2: term.c.attr.mode |= ATTR_FAINT; break; case 3: term.c.attr.mode |= ATTR_ITALIC; break; case 4: term.c.attr.mode |= ATTR_UNDERLINE; break; case 5: /* slow blink */ /* FALLTHROUGH */ case 6: /* rapid blink */ term.c.attr.mode |= ATTR_BLINK; break; case 7: term.c.attr.mode |= ATTR_REVERSE; break; case 8: term.c.attr.mode |= ATTR_INVISIBLE; break; case 9: term.c.attr.mode |= ATTR_STRUCK; break; case 22: term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT); break; case 23: term.c.attr.mode &= ~ATTR_ITALIC; break; case 24: term.c.attr.mode &= ~ATTR_UNDERLINE; break; case 25: term.c.attr.mode &= ~ATTR_BLINK; break; case 27: term.c.attr.mode &= ~ATTR_REVERSE; break; case 28: term.c.attr.mode &= ~ATTR_INVISIBLE; break; case 29: term.c.attr.mode &= ~ATTR_STRUCK; break; case 38: if ((idx = tdefcolor(attr, &i, l)) >= 0) term.c.attr.fg = idx; break; case 39: term.c.attr.fg = defaultfg; break; case 48: if ((idx = tdefcolor(attr, &i, l)) >= 0) term.c.attr.bg = idx; break; case 49: term.c.attr.bg = defaultbg; break; default: if (BETWEEN(attr[i], 30, 37)) { term.c.attr.fg = attr[i] - 30; } else if (BETWEEN(attr[i], 40, 47)) { term.c.attr.bg = attr[i] - 40; } else if (BETWEEN(attr[i], 90, 97)) { term.c.attr.fg = attr[i] - 90 + 8; } else if (BETWEEN(attr[i], 100, 107)) { term.c.attr.bg = attr[i] - 100 + 8; } else { fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]), csidump(); } break; } } } void tsetscroll(int t, int b) { int temp; LIMIT(t, 0, term.row - 1); LIMIT(b, 0, term.row - 1); if (t > b) { temp = t; t = b; b = temp; } term.top = t; term.bot = b; } void tsetmode(int priv, int set, int *args, int narg) { int *lim, mode; int alt; for (lim = args + narg; args < lim; ++args) { if (priv) { switch (*args) { case 1: /* DECCKM -- Cursor key */ MODBIT(term.mode, set, MODE_APPCURSOR); break; case 5: /* DECSCNM -- Reverse video */ mode = term.mode; MODBIT(term.mode, set, MODE_REVERSE); if (mode != term.mode) redraw(); break; case 6: /* DECOM -- Origin */ MODBIT(term.c.state, set, CURSOR_ORIGIN); tmoveato(0, 0); break; case 7: /* DECAWM -- Auto wrap */ MODBIT(term.mode, set, MODE_WRAP); break; case 0: /* Error (IGNORED) */ case 2: /* DECANM -- ANSI/VT52 (IGNORED) */ case 3: /* DECCOLM -- Column (IGNORED) */ case 4: /* DECSCLM -- Scroll (IGNORED) */ case 8: /* DECARM -- Auto repeat (IGNORED) */ case 18: /* DECPFF -- Printer feed (IGNORED) */ case 19: /* DECPEX -- Printer extent (IGNORED) */ case 42: /* DECNRCM -- National characters (IGNORED) */ case 12: /* att610 -- Start blinking cursor (IGNORED) */ break; case 25: /* DECTCEM -- Text Cursor Enable Mode */ MODBIT(term.mode, !set, MODE_HIDE); break; case 9: /* X10 mouse compatibility mode */ MODBIT(term.mode, 0, MODE_MOUSE); MODBIT(term.mode, set, MODE_MOUSEX10); break; case 1000: /* 1000: report button press */ MODBIT(term.mode, 0, MODE_MOUSE); MODBIT(term.mode, set, MODE_MOUSEBTN); break; case 1002: /* 1002: report motion on button press */ MODBIT(term.mode, 0, MODE_MOUSE); MODBIT(term.mode, set, MODE_MOUSEMOTION); break; case 1003: /* 1003: enable all mouse motions */ MODBIT(term.mode, 0, MODE_MOUSE); MODBIT(term.mode, set, MODE_MOUSEMANY); break; case 1004: /* 1004: send focus events to tty */ MODBIT(term.mode, set, MODE_FOCUS); break; case 1006: /* 1006: extended reporting mode */ MODBIT(term.mode, set, MODE_MOUSESGR); break; case 1034: MODBIT(term.mode, set, MODE_8BIT); break; case 1049: /* swap screen & set/restore cursor as xterm */ if (!allowaltscreen) break; tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); /* FALLTHROUGH */ case 47: /* swap screen */ case 1047: if (!allowaltscreen) break; alt = IS_SET(MODE_ALTSCREEN); if (alt) { tclearregion(0, 0, term.col - 1, term.row - 1); } if (set ^ alt) /* set is always 1 or 0 */ tswapscreen(); if (*args != 1049) break; /* FALLTHROUGH */ case 1048: tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); break; case 2004: /* 2004: bracketed paste mode */ MODBIT(term.mode, set, MODE_BRCKTPASTE); break; /* Not implemented mouse modes. See comments there. */ case 1001: /* mouse highlight mode; can hang the terminal by design when implemented. */ case 1005: /* UTF-8 mouse mode; will confuse applications not supporting UTF-8 and luit. */ case 1015: /* urxvt mangled mouse mode; incompatible and can be mistaken for other control codes. */ default: fprintf(stderr, "erresc: unknown private set/reset mode %d\n", *args); break; } } else { switch (*args) { case 0: /* Error (IGNORED) */ break; case 2: /* KAM -- keyboard action */ MODBIT(term.mode, set, MODE_KBDLOCK); break; case 4: /* IRM -- Insertion-replacement */ MODBIT(term.mode, set, MODE_INSERT); break; case 12: /* SRM -- Send/Receive */ MODBIT(term.mode, !set, MODE_ECHO); break; case 20: /* LNM -- Linefeed/new line */ MODBIT(term.mode, set, MODE_CRLF); break; default: fprintf(stderr, "erresc: unknown set/reset mode %d\n", *args); break; } } } } void csihandle(void) { char buf[40]; int len; switch (csiescseq.mode[0]) { default: unknown: fprintf(stderr, "erresc: unknown csi "); csidump(); /* die(""); */ break; case '@': /* ICH -- Insert blank char */ DEFAULT(csiescseq.arg[0], 1); tinsertblank(csiescseq.arg[0]); break; case 'A': /* CUU -- Cursor Up */ DEFAULT(csiescseq.arg[0], 1); tmoveto(term.c.x, term.c.y - csiescseq.arg[0]); break; case 'B': /* CUD -- Cursor Down */ case 'e': /* VPR --Cursor Down */ DEFAULT(csiescseq.arg[0], 1); tmoveto(term.c.x, term.c.y + csiescseq.arg[0]); break; case 'i': /* MC -- Media Copy */ switch (csiescseq.arg[0]) { case 0: tdump(); break; case 1: tdumpline(term.c.y); break; case 2: tdumpsel(); break; case 4: term.mode &= ~MODE_PRINT; break; case 5: term.mode |= MODE_PRINT; break; } break; case 'c': /* DA -- Device Attributes */ if (csiescseq.arg[0] == 0) ttywrite(vtiden, sizeof(vtiden) - 1); break; case 'C': /* CUF -- Cursor Forward */ case 'a': /* HPR -- Cursor Forward */ DEFAULT(csiescseq.arg[0], 1); tmoveto(term.c.x + csiescseq.arg[0], term.c.y); break; case 'D': /* CUB -- Cursor Backward */ DEFAULT(csiescseq.arg[0], 1); tmoveto(term.c.x - csiescseq.arg[0], term.c.y); break; case 'E': /* CNL -- Cursor Down and first col */ DEFAULT(csiescseq.arg[0], 1); tmoveto(0, term.c.y + csiescseq.arg[0]); break; case 'F': /* CPL -- Cursor Up and first col */ DEFAULT(csiescseq.arg[0], 1); tmoveto(0, term.c.y - csiescseq.arg[0]); break; case 'g': /* TBC -- Tabulation clear */ switch (csiescseq.arg[0]) { case 0: /* clear current tab stop */ term.tabs[term.c.x] = 0; break; case 3: /* clear all the tabs */ memset(term.tabs, 0, term.col * sizeof(*term.tabs)); break; default: goto unknown; } break; case 'G': /* CHA -- Move to */ case '`': /* HPA */ DEFAULT(csiescseq.arg[0], 1); tmoveto(csiescseq.arg[0] - 1, term.c.y); break; case 'H': /* CUP -- Move to */ case 'f': /* HVP */ DEFAULT(csiescseq.arg[0], 1); DEFAULT(csiescseq.arg[1], 1); tmoveato(csiescseq.arg[1] - 1, csiescseq.arg[0] - 1); break; case 'I': /* CHT -- Cursor Forward Tabulation tab stops */ DEFAULT(csiescseq.arg[0], 1); tputtab(csiescseq.arg[0]); break; case 'J': /* ED -- Clear screen */ selclear(); switch (csiescseq.arg[0]) { case 0: /* below */ tclearregion(term.c.x, term.c.y, term.col - 1, term.c.y); if (term.c.y < term.row - 1) { tclearregion(0, term.c.y + 1, term.col - 1, term.row - 1); } break; case 1: /* above */ if (term.c.y > 1) tclearregion(0, 0, term.col - 1, term.c.y - 1); tclearregion(0, term.c.y, term.c.x, term.c.y); break; case 2: /* all */ tclearregion(0, 0, term.col - 1, term.row - 1); break; default: goto unknown; } break; case 'K': /* EL -- Clear line */ switch (csiescseq.arg[0]) { case 0: /* right */ tclearregion(term.c.x, term.c.y, term.col - 1, term.c.y); break; case 1: /* left */ tclearregion(0, term.c.y, term.c.x, term.c.y); break; case 2: /* all */ tclearregion(0, term.c.y, term.col - 1, term.c.y); break; } break; case 'S': /* SU -- Scroll line up */ DEFAULT(csiescseq.arg[0], 1); tscrollup(term.top, csiescseq.arg[0]); break; case 'T': /* SD -- Scroll line down */ DEFAULT(csiescseq.arg[0], 1); tscrolldown(term.top, csiescseq.arg[0]); break; case 'L': /* IL -- Insert blank lines */ DEFAULT(csiescseq.arg[0], 1); tinsertblankline(csiescseq.arg[0]); break; case 'l': /* RM -- Reset Mode */ tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg); break; case 'M': /* DL -- Delete lines */ DEFAULT(csiescseq.arg[0], 1); tdeleteline(csiescseq.arg[0]); break; case 'X': /* ECH -- Erase char */ DEFAULT(csiescseq.arg[0], 1); tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0] - 1, term.c.y); break; case 'P': /* DCH -- Delete char */ DEFAULT(csiescseq.arg[0], 1); tdeletechar(csiescseq.arg[0]); break; case 'Z': /* CBT -- Cursor Backward Tabulation tab stops */ DEFAULT(csiescseq.arg[0], 1); tputtab(-csiescseq.arg[0]); break; case 'd': /* VPA -- Move to */ DEFAULT(csiescseq.arg[0], 1); tmoveato(term.c.x, csiescseq.arg[0] - 1); break; case 'h': /* SM -- Set terminal mode */ tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg); break; case 'm': /* SGR -- Terminal attribute (color) */ tsetattr(csiescseq.arg, csiescseq.narg); break; case 'n': /* DSR – Device Status Report (cursor position) */ if (csiescseq.arg[0] == 6) { len = snprintf(buf, sizeof(buf), "\033[%i;%iR", term.c.y + 1, term.c.x + 1); ttywrite(buf, len); } break; case 'r': /* DECSTBM -- Set Scrolling Region */ if (csiescseq.priv) { goto unknown; } else { DEFAULT(csiescseq.arg[0], 1); DEFAULT(csiescseq.arg[1], term.row); tsetscroll(csiescseq.arg[0] - 1, csiescseq.arg[1] - 1); tmoveato(0, 0); } break; case 's': /* DECSC -- Save cursor position (ANSI.SYS) */ tcursor(CURSOR_SAVE); break; case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */ tcursor(CURSOR_LOAD); break; case ' ': switch (csiescseq.mode[1]) { case 'q': /* DECSCUSR -- Set Cursor Style */ DEFAULT(csiescseq.arg[0], 1); if (!BETWEEN(csiescseq.arg[0], 0, 6)) { goto unknown; } wl.cursor = csiescseq.arg[0]; break; default: goto unknown; } break; } } void csidump(void) { int i; uint c; printf("ESC["); for (i = 0; i < csiescseq.len; i++) { c = csiescseq.buf[i] & 0xff; if (isprint(c)) { putchar(c); } else if (c == '\n') { printf("(\\n)"); } else if (c == '\r') { printf("(\\r)"); } else if (c == 0x1b) { printf("(\\e)"); } else { printf("(%02x)", c); } } putchar('\n'); } void csireset(void) { memset(&csiescseq, 0, sizeof(csiescseq)); } void strhandle(void) { char *p = NULL; int j, narg, par; term.esc &= ~(ESC_STR_END | ESC_STR); strparse(); par = (narg = strescseq.narg) ? atoi(strescseq.args[0]) : 0; switch (strescseq.type) { case ']': /* OSC -- Operating System Command */ switch (par) { case 0: case 1: case 2: if (narg > 1) wlsettitle(strescseq.args[1]); return; case 4: /* color set */ if (narg < 3) break; p = strescseq.args[2]; /* FALLTHROUGH */ case 104: /* color reset, here p = NULL */ j = (narg > 1) ? atoi(strescseq.args[1]) : -1; if (wlsetcolorname(j, p)) { fprintf(stderr, "erresc: invalid color %s\n", p); } else { /* * TODO if defaultbg color is changed, borders * are dirty */ redraw(); } return; } break; case 'k': /* old title set compatibility */ wlsettitle(strescseq.args[0]); return; case 'P': /* DCS -- Device Control String */ case '_': /* APC -- Application Program Command */ case '^': /* PM -- Privacy Message */ return; } fprintf(stderr, "erresc: unknown str "); strdump(); } void strparse(void) { int c; char *p = strescseq.buf; strescseq.narg = 0; strescseq.buf[strescseq.len] = '\0'; if (*p == '\0') return; while (strescseq.narg < STR_ARG_SIZ) { strescseq.args[strescseq.narg++] = p; while ((c = *p) != ';' && c != '\0') ++p; if (c == '\0') return; *p++ = '\0'; } } void strdump(void) { int i; uint c; printf("ESC%c", strescseq.type); for (i = 0; i < strescseq.len; i++) { c = strescseq.buf[i] & 0xff; if (c == '\0') { return; } else if (isprint(c)) { putchar(c); } else if (c == '\n') { printf("(\\n)"); } else if (c == '\r') { printf("(\\r)"); } else if (c == 0x1b) { printf("(\\e)"); } else { printf("(%02x)", c); } } printf("ESC\\\n"); } void strreset(void) { memset(&strescseq, 0, sizeof(strescseq)); } void tprinter(char *s, size_t len) { if (iofd != -1 && xwrite(iofd, s, len) < 0) { fprintf(stderr, "Error writing in %s:%s\n", opt_io, strerror(errno)); close(iofd); iofd = -1; } } void toggleprinter(const Arg *arg) { term.mode ^= MODE_PRINT; } void printscreen(const Arg *arg) { tdump(); } void printsel(const Arg *arg) { tdumpsel(); } void tdumpsel(void) { char *ptr; if ((ptr = getsel())) { tprinter(ptr, strlen(ptr)); free(ptr); } } void tdumpline(int n) { char buf[UTF_SIZ]; Glyph *bp, *end; bp = &term.line[n][0]; end = &bp[MIN(tlinelen(n), term.col) - 1]; if (bp != end || bp->u != ' ') { for (; bp <= end; ++bp) tprinter(buf, utf8encode(bp->u, buf)); } tprinter("\n", 1); } void tdump(void) { int i; for (i = 0; i < term.row; ++i) tdumpline(i); } void tputtab(int n) { uint x = term.c.x; if (n > 0) { while (x < term.col && n--) for (++x; x < term.col && !term.tabs[x]; ++x) /* nothing */; } else if (n < 0) { while (x > 0 && n++) for (--x; x > 0 && !term.tabs[x]; --x) /* nothing */; } term.c.x = LIMIT(x, 0, term.col - 1); } void techo(Rune u) { if (ISCONTROL(u)) { /* control code */ if (u & 0x80) { u &= 0x7f; tputc('^'); tputc('['); } else if (u != '\n' && u != '\r' && u != '\t') { u ^= 0x40; tputc('^'); } } tputc(u); needdraw = true; } void tdeftran(char ascii) { static char cs[] = "0B"; static int vcs[] = {CS_GRAPHIC0, CS_USA}; char *p; if ((p = strchr(cs, ascii)) == NULL) { fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii); } else { term.trantbl[term.icharset] = vcs[p - cs]; } } void tdectest(char c) { int x, y; if (c == '8') { /* DEC screen alignment test. */ for (x = 0; x < term.col; ++x) { for (y = 0; y < term.row; ++y) tsetchar('E', &term.c.attr, x, y); } } } void tstrsequence(uchar c) { switch (c) { case 0x90: /* DCS -- Device Control String */ c = 'P'; break; case 0x9f: /* APC -- Application Program Command */ c = '_'; break; case 0x9e: /* PM -- Privacy Message */ c = '^'; break; case 0x9d: /* OSC -- Operating System Command */ c = ']'; break; } strreset(); strescseq.type = c; term.esc |= ESC_STR; } void tcontrolcode(uchar ascii) { switch (ascii) { case '\t': /* HT */ tputtab(1); return; case '\b': /* BS */ tmoveto(term.c.x - 1, term.c.y); return; case '\r': /* CR */ tmoveto(0, term.c.y); return; case '\f': /* LF */ case '\v': /* VT */ case '\n': /* LF */ /* go to first col if the mode is set */ tnewline(IS_SET(MODE_CRLF)); return; case '\a': /* BEL */ if (term.esc & ESC_STR_END) { /* backwards compatibility to xterm */ strhandle(); } else { if (!(wl.state & WIN_FOCUSED)) wlseturgency(1); /* XXX: No bell on wayland * if (bellvolume) * XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL); */ } break; case '\033': /* ESC */ csireset(); term.esc &= ~(ESC_CSI | ESC_ALTCHARSET | ESC_TEST); term.esc |= ESC_START; return; case '\016': /* SO (LS1 -- Locking shift 1) */ case '\017': /* SI (LS0 -- Locking shift 0) */ term.charset = 1 - (ascii - '\016'); return; case '\032': /* SUB */ tsetchar('?', &term.c.attr, term.c.x, term.c.y); case '\030': /* CAN */ csireset(); break; case '\005': /* ENQ (IGNORED) */ case '\000': /* NUL (IGNORED) */ case '\021': /* XON (IGNORED) */ case '\023': /* XOFF (IGNORED) */ case 0177: /* DEL (IGNORED) */ return; case 0x84: /* TODO: IND */ break; case 0x85: /* NEL -- Next line */ tnewline(1); /* always go to first col */ break; case 0x88: /* HTS -- Horizontal tab stop */ term.tabs[term.c.x] = 1; break; case 0x8d: /* TODO: RI */ case 0x8e: /* TODO: SS2 */ case 0x8f: /* TODO: SS3 */ case 0x98: /* TODO: SOS */ break; case 0x9a: /* DECID -- Identify Terminal */ ttywrite(vtiden, sizeof(vtiden) - 1); break; case 0x9b: /* TODO: CSI */ case 0x9c: /* TODO: ST */ break; case 0x90: /* DCS -- Device Control String */ case 0x9f: /* APC -- Application Program Command */ case 0x9e: /* PM -- Privacy Message */ case 0x9d: /* OSC -- Operating System Command */ tstrsequence(ascii); return; } /* only CAN, SUB, \a and C1 chars interrupt a sequence */ term.esc &= ~(ESC_STR_END | ESC_STR); } /* * returns 1 when the sequence is finished and it hasn't to read * more characters for this sequence, otherwise 0 */ int eschandle(uchar ascii) { switch (ascii) { case '[': term.esc |= ESC_CSI; return 0; case '#': term.esc |= ESC_TEST; return 0; case 'P': /* DCS -- Device Control String */ case '_': /* APC -- Application Program Command */ case '^': /* PM -- Privacy Message */ case ']': /* OSC -- Operating System Command */ case 'k': /* old title set compatibility */ tstrsequence(ascii); return 0; case 'n': /* LS2 -- Locking shift 2 */ case 'o': /* LS3 -- Locking shift 3 */ term.charset = 2 + (ascii - 'n'); break; case '(': /* GZD4 -- set primary charset G0 */ case ')': /* G1D4 -- set secondary charset G1 */ case '*': /* G2D4 -- set tertiary charset G2 */ case '+': /* G3D4 -- set quaternary charset G3 */ term.icharset = ascii - '('; term.esc |= ESC_ALTCHARSET; return 0; case 'D': /* IND -- Linefeed */ if (term.c.y == term.bot) { tscrollup(term.top, 1); } else { tmoveto(term.c.x, term.c.y + 1); } break; case 'E': /* NEL -- Next line */ tnewline(1); /* always go to first col */ break; case 'H': /* HTS -- Horizontal tab stop */ term.tabs[term.c.x] = 1; break; case 'M': /* RI -- Reverse index */ if (term.c.y == term.top) { tscrolldown(term.top, 1); } else { tmoveto(term.c.x, term.c.y - 1); } break; case 'Z': /* DECID -- Identify Terminal */ ttywrite(vtiden, sizeof(vtiden) - 1); break; case 'c': /* RIS -- Reset to inital state */ treset(); wlresettitle(); wlloadcols(); break; case '=': /* DECPAM -- Application keypad */ term.mode |= MODE_APPKEYPAD; break; case '>': /* DECPNM -- Normal keypad */ term.mode &= ~MODE_APPKEYPAD; break; case '7': /* DECSC -- Save Cursor */ tcursor(CURSOR_SAVE); break; case '8': /* DECRC -- Restore Cursor */ tcursor(CURSOR_LOAD); break; case '\\': /* ST -- String Terminator */ if (term.esc & ESC_STR_END) strhandle(); break; default: fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", (uchar)ascii, isprint(ascii) ? ascii : '.'); break; } return 1; } void tputc(Rune u) { char c[UTF_SIZ]; int control; int width, len; Glyph *gp; control = ISCONTROL(u); len = utf8encode(u, c); if (!control && (width = wcwidth(u)) == -1) { memcpy(c, "\357\277\275", 4); /* UTF_INVALID */ width = 1; } if (IS_SET(MODE_PRINT)) tprinter(c, len); /* * STR sequence must be checked before anything else * because it uses all following characters until it * receives a ESC, a SUB, a ST or any other C1 control * character. */ if (term.esc & ESC_STR) { if (u == '\a' || u == 030 || u == 032 || u == 033 || ISCONTROLC1(u)) { term.esc &= ~(ESC_START | ESC_STR); term.esc |= ESC_STR_END; } else if (strescseq.len + len < sizeof(strescseq.buf) - 1) { memmove(&strescseq.buf[strescseq.len], c, len); strescseq.len += len; return; } else { /* * Here is a bug in terminals. If the user never sends * some code to stop the str or esc command, then st * will stop responding. But this is better than * silently failing with unknown characters. At least * then users will report back. * * In the case users ever get fixed, here is the code: */ /* * term.esc = 0; * strhandle(); */ return; } } /* * Actions of control codes must be performed as soon they arrive * because they can be embedded inside a control sequence, and * they must not cause conflicts with sequences. */ if (control) { tcontrolcode(u); /* * control codes are not shown ever */ return; } else if (term.esc & ESC_START) { if (term.esc & ESC_CSI) { csiescseq.buf[csiescseq.len++] = u; if (BETWEEN(u, 0x40, 0x7E) || csiescseq.len >= sizeof(csiescseq.buf) - 1) { term.esc = 0; csiparse(); csihandle(); } return; } else if (term.esc & ESC_ALTCHARSET) { tdeftran(u); } else if (term.esc & ESC_TEST) { tdectest(u); } else { if (!eschandle(u)) return; /* sequence already finished */ } term.esc = 0; /* * All characters which form part of a sequence are not * printed */ return; } if (sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y)) selclear(); gp = &term.line[term.c.y][term.c.x]; if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) { gp->mode |= ATTR_WRAP; tnewline(1); gp = &term.line[term.c.y][term.c.x]; } if (IS_SET(MODE_INSERT) && term.c.x + width < term.col) memmove(gp + width, gp, (term.col - term.c.x - width) * sizeof(Glyph)); if (term.c.x + width > term.col) { tnewline(1); gp = &term.line[term.c.y][term.c.x]; } tsetchar(u, &term.c.attr, term.c.x, term.c.y); if (width == 2) { gp->mode |= ATTR_WIDE; if (term.c.x + 1 < term.col) { gp[1].u = '\0'; gp[1].mode = ATTR_WDUMMY; } } if (term.c.x + width < term.col) { tmoveto(term.c.x + width, term.c.y); } else { term.c.state |= CURSOR_WRAPNEXT; } } void tresize(int col, int row) { int i; int minrow = MIN(row, term.row); int mincol = MIN(col, term.col); int *bp; TCursor c; if (col < 1 || row < 1) { fprintf(stderr, "tresize: error resizing to %dx%d\n", col, row); return; } /* * slide screen to keep cursor where we expect it - * tscrollup would work here, but we can optimize to * memmove because we're freeing the earlier lines */ for (i = 0; i <= term.c.y - row; i++) { free(term.line[i]); free(term.alt[i]); } /* ensure that both src and dst are not NULL */ if (i > 0) { memmove(term.line, term.line + i, row * sizeof(Line)); memmove(term.alt, term.alt + i, row * sizeof(Line)); } for (i += row; i < term.row; i++) { free(term.line[i]); free(term.alt[i]); } /* resize to new height */ term.line = xrealloc(term.line, row * sizeof(Line)); term.alt = xrealloc(term.alt, row * sizeof(Line)); term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); /* resize each row to new width, zero-pad if needed */ for (i = 0; i < minrow; i++) { term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph)); } /* allocate any new rows */ for (/* i == minrow */; i < row; i++) { term.line[i] = xmalloc(col * sizeof(Glyph)); term.alt[i] = xmalloc(col * sizeof(Glyph)); } if (col > term.col) { bp = term.tabs + term.col; memset(bp, 0, sizeof(*term.tabs) * (col - term.col)); while (--bp > term.tabs && !*bp) /* nothing */; for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces) *bp = 1; } /* update terminal size */ term.col = col; term.row = row; /* reset scrolling region */ tsetscroll(0, row - 1); /* make use of the LIMIT in tmoveto */ tmoveto(term.c.x, term.c.y); /* Clearing both screens (it makes dirty all lines) */ c = term.c; for (i = 0; i < 2; i++) { if (mincol < col && 0 < minrow) { tclearregion(mincol, 0, col - 1, minrow - 1); } if (0 < col && minrow < row) { tclearregion(0, minrow, col - 1, row - 1); } tswapscreen(); tcursor(CURSOR_LOAD); } term.c = c; } void wlresize(int col, int row) { union wld_object object; wl.tw = MAX(1, col * wl.cw); wl.th = MAX(1, row * wl.ch); wld.oldbuffer = wld.buffer; wld.buffer = wld_create_buffer(wld.ctx, wl.w, wl.h, WLD_FORMAT_ARGB8888, 0); if (!wld.buffer) die("failed to create buffer"); wld_export(wld.buffer, WLD_WAYLAND_OBJECT_BUFFER, &object); wl.buffer = object.ptr; if (wld.oldbuffer) { wld_buffer_unreference(wld.oldbuffer); wld.oldbuffer = 0; } } uchar sixd_to_8bit(int x) { return x == 0 ? 0 : 0x37 + 0x28 * x; } int wlloadcolor(int i, const char *name, uint32_t *color) { if (!name) { if (BETWEEN(i, 16, 255)) { /* 256 color */ if (i < 6 * 6 * 6 + 16) { /* same colors as xterm */ *color = 0xff << 24 | sixd_to_8bit(((i - 16) / 36) % 6) << 16 | sixd_to_8bit(((i - 16) / 6) % 6) << 8 | sixd_to_8bit(((i - 16) / 1) % 6); } else { /* greyscale */ *color = 0xff << 24 | (0x8 + 0xa * (i - (6 * 6 * 6 + 16))) * 0x10101; } return true; } else name = colorname[i]; } return wld_lookup_named_color(name, color); } void wlloadcols(void) { int i; for (i = 0; i < LEN(dc.col); i++) if (!wlloadcolor(i, NULL, &dc.col[i])) { if (colorname[i]) die("Could not allocate color '%s'\n", colorname[i]); else die("Could not allocate color %d\n", i); } } int wlsetcolorname(int x, const char *name) { uint32_t color; if (!BETWEEN(x, 0, LEN(dc.col))) return 1; if (!wlloadcolor(x, name, &color)) return 1; dc.col[x] = color; return 0; } static void wlloadcursor(void) { char *names[] = {mouseshape, "xterm", "ibeam", "text"}; int i; cursor.theme = wl_cursor_theme_load(NULL, 32, wl.shm); for (i = 0; !cursor.cursor && i < LEN(names); i++) cursor.cursor = wl_cursor_theme_get_cursor(cursor.theme, names[i]); cursor.surface = wl_compositor_create_surface(wl.cmp); } void wltermclear(int col1, int row1, int col2, int row2) { uint32_t color = dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg]; color = (color & term_alpha << 24) | (color & 0x00FFFFFF); wld_fill_rectangle(wld.renderer, color, borderpx + col1 * wl.cw, borderpx + row1 * wl.ch, (col2 - col1 + 1) * wl.cw, (row2 - row1 + 1) * wl.ch); } /* * Absolute coordinates. */ void wlclear(int x1, int y1, int x2, int y2) { uint32_t color = dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg]; color = (color & term_alpha << 24) | (color & 0x00FFFFFF); wld_fill_rectangle(wld.renderer, color, x1, y1, x2 - x1, y2 - y1); } int wlloadfont(Font *f, FcPattern *pattern) { FcPattern *match; FcResult result; match = FcFontMatch(NULL, pattern, &result); if (!match) return 1; if (!(f->match = wld_font_open_pattern(wld.fontctx, match))) { FcPatternDestroy(match); return 1; } f->set = NULL; f->pattern = FcPatternDuplicate(pattern); f->ascent = f->match->ascent; f->descent = f->match->descent; f->lbearing = 0; f->rbearing = f->match->max_advance; f->height = f->ascent + f->descent; f->width = f->lbearing + f->rbearing; return 0; } void wlloadfonts(char *fontstr, double fontsize) { FcPattern *pattern; double fontval; float ceilf(float); if (fontstr[0] == '-') { /* XXX: need XftXlfdParse equivalent */ pattern = NULL; } else { pattern = FcNameParse((FcChar8 *)fontstr); } if (!pattern) die("st: can't open font %s\n", fontstr); if (fontsize > 1) { FcPatternDel(pattern, FC_PIXEL_SIZE); FcPatternDel(pattern, FC_SIZE); FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize); usedfontsize = fontsize; } else { if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) == FcResultMatch) { usedfontsize = fontval; } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) == FcResultMatch) { usedfontsize = -1; } else { /* * Default font size is 12, if none given. This is to * have a known usedfontsize value. */ FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12); usedfontsize = 12; } defaultfontsize = usedfontsize; } FcConfigSubstitute(0, pattern, FcMatchPattern); FcDefaultSubstitute(pattern); if (wlloadfont(&dc.font, pattern)) die("st: can't open font %s\n", fontstr); if (usedfontsize < 0) { FcPatternGetDouble(dc.font.pattern, FC_PIXEL_SIZE, 0, &fontval); usedfontsize = fontval; if (fontsize == 0) defaultfontsize = fontval; } /* Setting character width and height. */ wl.cw = ceilf(dc.font.width * cwscale); wl.ch = ceilf(dc.font.height * chscale); FcPatternDel(pattern, FC_SLANT); FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); if (wlloadfont(&dc.ifont, pattern)) die("st: can't open font %s\n", fontstr); FcPatternDel(pattern, FC_WEIGHT); FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); if (wlloadfont(&dc.ibfont, pattern)) die("st: can't open font %s\n", fontstr); FcPatternDel(pattern, FC_SLANT); FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); if (wlloadfont(&dc.bfont, pattern)) die("st: can't open font %s\n", fontstr); FcPatternDestroy(pattern); } void wlunloadfont(Font *f) { wld_font_close(f->match); FcPatternDestroy(f->pattern); if (f->set) FcFontSetDestroy(f->set); } void wlunloadfonts(void) { /* Free the loaded fonts in the font cache. */ while (frclen > 0) wld_font_close(frc[--frclen].font); wlunloadfont(&dc.font); wlunloadfont(&dc.bfont); wlunloadfont(&dc.ifont); wlunloadfont(&dc.ibfont); } void wlzoom(const Arg *arg) { Arg larg; larg.f = usedfontsize + arg->f; wlzoomabs(&larg); } void wlzoomabs(const Arg *arg) { wlunloadfonts(); wlloadfonts(usedfont, arg->f); cresize(0, 0); redraw(); /* XXX: Should the window size be updated here because wayland doesn't * have a notion of hints? * xhints(); */ } void wlzoomreset(const Arg *arg) { Arg larg; if (defaultfontsize > 0) { larg.f = defaultfontsize; wlzoomabs(&larg); } } void wlinit(void) { struct wl_registry *registry; if (!(wl.dpy = wl_display_connect(NULL))) die("Can't open display\n"); registry = wl_display_get_registry(wl.dpy); wl_registry_add_listener(registry, ®listener, NULL); wl_display_dispatch(wl.dpy); wl_display_roundtrip(wl.dpy); wld.ctx = wld_wayland_create_context(wl.dpy, WLD_ANY); if (!wld.ctx) die("Can't create wayland context\n"); wld.renderer = wld_create_renderer(wld.ctx); if (!wld.ctx) die("Can't create renderer\n"); if (!wl.shm) die("Display has no SHM\n"); if (!wl.seat) die("Display has no seat\n"); if (!wl.datadevmanager) die("Display has no data device manager\n"); wl.xkb.ctx = xkb_context_new(0); wl_display_roundtrip(wl.dpy); wl.keyboard = wl_seat_get_keyboard(wl.seat); if (!wl.keyboard) die("Display has no keyboard\n"); wl_keyboard_add_listener(wl.keyboard, &kbdlistener, NULL); wl.pointer = wl_seat_get_pointer(wl.seat); wl_pointer_add_listener(wl.pointer, &ptrlistener, NULL); wl.datadev = wl_data_device_manager_get_data_device(wl.datadevmanager, wl.seat); wl_data_device_add_listener(wl.datadev, &datadevlistener, NULL); /* font */ if (!FcInit()) die("Could not init fontconfig.\n"); usedfont = (opt_font == NULL) ? font : opt_font; wld.fontctx = wld_font_create_context(); wlloadfonts(usedfont, 0); wlloadcols(); wlloadcursor(); wl.vis = 0; wl.h = 2 * borderpx + term.row * wl.ch; wl.w = 2 * borderpx + term.col * wl.cw; wl.surface = wl_compositor_create_surface(wl.cmp); wl_surface_add_listener(wl.surface, &surflistener, NULL); if (wl.xdgshell) { xdg_shell_use_unstable_version(wl.xdgshell, XDG_SHELL_VERSION_CURRENT); wl.xdgsurface = xdg_shell_get_xdg_surface(wl.xdgshell, wl.surface); if (wl.xdgsurface) { xdg_shell_add_listener(wl.xdgshell, &shell_listener, NULL); xdg_surface_add_listener(wl.xdgsurface, &xdgsurflistener, NULL); } else die("failed to get xdgsurface"); } else if (wl.xdgshell_v6) { wl.xdgsurface_v6 = zxdg_shell_v6_get_xdg_surface(wl.xdgshell_v6, wl.surface); zxdg_surface_v6_add_listener(wl.xdgsurface_v6, &surf_v6_listener, NULL); wl.xdgtoplevel = zxdg_surface_v6_get_toplevel(wl.xdgsurface_v6); zxdg_toplevel_v6_add_listener(wl.xdgtoplevel, &xdgtoplevellistener, NULL); } else die("no wayland shell"); wl_surface_commit(wl.surface); wlresettitle(); } /* * TODO: Implement something like XftDrawGlyphFontSpec in wld, and then apply a * similar patch to ae1923d27533ff46400d93765e971558201ca1ee */ void wldraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) { int winx = borderpx + x * wl.cw, winy = borderpx + y * wl.ch, width = charlen * wl.cw, xp, i; int frcflags, charexists; int u8fl, u8fblen, u8cblen, doesexist; char *u8c, *u8fs; Rune unicodep; Font *font = &dc.font; FcResult fcres; FcPattern *fcpattern, *fontpattern; FcFontSet *fcsets[] = {NULL}; FcCharSet *fccharset; uint32_t fg, bg, temp; int oneatatime; frcflags = FRC_NORMAL; if (base.mode & ATTR_ITALIC) { if (base.fg == defaultfg) base.fg = defaultitalic; font = &dc.ifont; frcflags = FRC_ITALIC; } else if ((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) { if (base.fg == defaultfg) base.fg = defaultitalic; font = &dc.ibfont; frcflags = FRC_ITALICBOLD; } else if (base.mode & ATTR_UNDERLINE) { if (base.fg == defaultfg) base.fg = defaultunderline; } if (IS_TRUECOL(base.fg)) { fg = base.fg; } else { fg = dc.col[base.fg]; } if (IS_TRUECOL(base.bg)) { bg = base.bg | 0xff000000; } else { bg = dc.col[base.bg]; } if (base.mode & ATTR_BOLD) { /* * change basic system colors [0-7] * to bright system colors [8-15] */ if (BETWEEN(base.fg, 0, 7) && !(base.mode & ATTR_FAINT)) fg = dc.col[base.fg + 8]; if (base.mode & ATTR_ITALIC) { font = &dc.ibfont; frcflags = FRC_ITALICBOLD; } else { font = &dc.bfont; frcflags = FRC_BOLD; } } if (IS_SET(MODE_REVERSE)) { if (fg == dc.col[defaultfg]) { fg = dc.col[defaultbg]; } else { fg = ~(fg & 0xffffff); } if (bg == dc.col[defaultbg]) { bg = dc.col[defaultfg]; } else { bg = ~(bg & 0xffffff); } } if (base.mode & ATTR_REVERSE) { temp = fg; fg = bg; bg = temp; } if (base.mode & ATTR_FAINT && !(base.mode & ATTR_BOLD)) { fg = (fg & (0xff << 24)) | ((((fg >> 16) & 0xff) / 2) << 16) | ((((fg >> 8) & 0xff) / 2) << 8) | ((fg & 0xff) / 2); } if (base.mode & ATTR_BLINK && term.mode & MODE_BLINK) fg = bg; if (base.mode & ATTR_INVISIBLE) fg = bg; /* Intelligent cleaning up of the borders. */ if (x == 0) { wlclear(0, (y == 0) ? 0 : winy, borderpx, ((y >= term.row - 1) ? wl.h : (winy + wl.ch))); } if (x + charlen >= term.col) { wlclear(winx + width, (y == 0) ? 0 : winy, wl.w, ((y >= term.row - 1) ? wl.h : (winy + wl.ch))); } if (y == 0) wlclear(winx, 0, winx + width, borderpx); if (y == term.row - 1) wlclear(winx, winy + wl.ch, winx + width, wl.h); /* Clean up the region we want to draw to. */ wld_fill_rectangle(wld.renderer, (bg & (term_alpha << 24)) | (bg & 0x00FFFFFF), winx, winy, width, wl.ch); for (xp = winx; bytelen > 0;) { /* * Search for the range in the to be printed string of glyphs * that are in the main font. Then print that range. If * some glyph is found that is not in the font, do the * fallback dance. */ u8fs = s; u8fblen = 0; u8fl = 0; oneatatime = font->width != wl.cw; for (;;) { u8c = s; u8cblen = utf8decode(s, &unicodep, UTF_SIZ); s += u8cblen; bytelen -= u8cblen; doesexist = wld_font_ensure_char(font->match, unicodep); if (doesexist) { u8fl++; u8fblen += u8cblen; if (!oneatatime && bytelen > 0) continue; } if (u8fl > 0) { wld_draw_text(wld.renderer, font->match, fg, xp, winy + font->ascent, u8fs, u8fblen, NULL); xp += wl.cw * u8fl; } break; } if (doesexist) { if (oneatatime) continue; break; } /* Search the font cache. */ for (i = 0; i < frclen; i++) { charexists = wld_font_ensure_char(frc[i].font, unicodep); /* Everything correct. */ if (charexists && frc[i].flags == frcflags) break; /* We got a default font for a not found glyph. */ if (!charexists && frc[i].flags == frcflags && frc[i].unicodep == unicodep) { break; } } /* Nothing was found. */ if (i >= frclen) { if (!font->set) font->set = FcFontSort(0, font->pattern, 1, 0, &fcres); fcsets[0] = font->set; /* * Nothing was found in the cache. Now use * some dozen of Fontconfig calls to get the * font for one single character. * * Xft and fontconfig are design failures. */ fcpattern = FcPatternDuplicate(font->pattern); fccharset = FcCharSetCreate(); FcCharSetAddChar(fccharset, unicodep); FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset); FcPatternAddBool(fcpattern, FC_SCALABLE, 1); FcConfigSubstitute(0, fcpattern, FcMatchPattern); FcDefaultSubstitute(fcpattern); fontpattern = FcFontSetMatch(0, fcsets, 1, fcpattern, &fcres); /* * Overwrite or create the new cache entry. */ if (frclen >= LEN(frc)) { frclen = LEN(frc) - 1; wld_font_close(frc[frclen].font); frc[frclen].unicodep = 0; } frc[frclen].font = wld_font_open_pattern(wld.fontctx, fontpattern); frc[frclen].flags = frcflags; frc[frclen].unicodep = unicodep; i = frclen; frclen++; FcPatternDestroy(fcpattern); FcCharSetDestroy(fccharset); } wld_draw_text(wld.renderer, frc[i].font, fg, xp, winy + frc[i].font->ascent, u8c, u8cblen, NULL); xp += wl.cw * wcwidth(unicodep); } if (base.mode & ATTR_UNDERLINE) { wld_fill_rectangle(wld.renderer, fg, winx, winy + font->ascent + 1, width, 1); } if (base.mode & ATTR_STRUCK) { wld_fill_rectangle(wld.renderer, fg, winx, winy + 2 * font->ascent / 3, width, 1); } } void wldrawglyph(Glyph g, int x, int y) { static char buf[UTF_SIZ]; size_t len = utf8encode(g.u, buf); int width = g.mode & ATTR_WIDE ? 2 : 1; wldraws(buf, g, x, y, width, len); } void wldrawcursor(void) { static int oldx = 0, oldy = 0; int curx; Glyph g = {' ', ATTR_NULL, defaultbg, defaultcs}; LIMIT(oldx, 0, term.col - 1); LIMIT(oldy, 0, term.row - 1); curx = term.c.x; /* adjust position if in dummy */ if (term.line[oldy][oldx].mode & ATTR_WDUMMY) oldx--; if (term.line[term.c.y][curx].mode & ATTR_WDUMMY) curx--; g.u = term.line[term.c.y][term.c.x].u; /* remove the old cursor */ wldrawglyph(term.line[oldy][oldx], oldx, oldy); if (oldx != curx || oldy != term.c.y) { wl_surface_damage(wl.surface, borderpx + oldx * wl.cw, borderpx + oldy * wl.ch, wl.cw, wl.ch); } if (IS_SET(MODE_HIDE)) return; uint32_t cs = dc.col[defaultcs] & (term_alpha << 24); /* draw the new one */ if (wl.state & WIN_FOCUSED) { switch (wl.cursor) { case 0: /* Blinking Block */ case 1: /* Blinking Block (Default) */ case 2: /* Steady Block */ if (IS_SET(MODE_REVERSE)) { g.mode |= ATTR_REVERSE; g.fg = defaultcs; g.bg = defaultfg; } g.mode |= term.line[term.c.y][curx].mode & ATTR_WIDE; wldrawglyph(g, term.c.x, term.c.y); break; case 3: /* Blinking Underline */ case 4: /* Steady Underline */ wld_fill_rectangle(wld.renderer, cs, borderpx + curx * wl.cw, borderpx + (term.c.y + 1) * wl.ch - cursorthickness, wl.cw, cursorthickness); break; case 5: /* Blinking bar */ case 6: /* Steady bar */ wld_fill_rectangle(wld.renderer, cs, borderpx + curx * wl.cw, borderpx + term.c.y * wl.ch, cursorthickness, wl.ch); break; } } else { wld_fill_rectangle(wld.renderer, cs, borderpx + curx * wl.cw, borderpx + term.c.y * wl.ch, wl.cw - 1, 1); wld_fill_rectangle(wld.renderer, cs, borderpx + curx * wl.cw, borderpx + term.c.y * wl.ch, 1, wl.ch - 1); wld_fill_rectangle(wld.renderer, cs, borderpx + (curx + 1) * wl.cw - 1, borderpx + term.c.y * wl.ch, 1, wl.ch - 1); wld_fill_rectangle(wld.renderer, cs, borderpx + curx * wl.cw, borderpx + (term.c.y + 1) * wl.ch - 1, wl.cw, 1); } wl_surface_damage(wl.surface, borderpx + curx * wl.cw, borderpx + term.c.y * wl.ch, wl.cw, wl.ch); oldx = curx, oldy = term.c.y; } void wlsettitle(char *title) { if (wl.xdgsurface) xdg_surface_set_title(wl.xdgsurface, title); else if (wl.xdgtoplevel) zxdg_toplevel_v6_set_title(wl.xdgtoplevel, title); else if (wl.shellsurf) wl_shell_surface_set_title(wl.shellsurf, title); } void wlresettitle(void) { wlsettitle(opt_title ? opt_title : "st"); } void redraw(void) { tfulldirt(); } void draw(void) { int y, y0; for (y = 0; y <= term.bot; ++y) { if (!term.dirty[y]) continue; for (y0 = y; y <= term.bot && term.dirty[y]; ++y) ; wl_surface_damage(wl.surface, 0, borderpx + y0 * wl.ch, wl.w, (y - y0) * wl.ch); } wld_set_target_buffer(wld.renderer, wld.buffer); drawregion(0, 0, term.col, term.row); wl.framecb = wl_surface_frame(wl.surface); wl_callback_add_listener(wl.framecb, &framelistener, NULL); wld_flush(wld.renderer); wl_surface_attach(wl.surface, wl.buffer, 0, 0); wl_surface_commit(wl.surface); /* need to wait to destroy the old buffer until we commit the new * buffer */ if (wld.oldbuffer) { wld_buffer_unreference(wld.oldbuffer); wld.oldbuffer = 0; } needdraw = false; } void drawregion(int x1, int y1, int x2, int y2) { int ic, ib, x, y, ox; Glyph base, new; char buf[DRAW_BUF_SIZ]; int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN); for (y = y1; y < y2; y++) { if (!term.dirty[y]) continue; wltermclear(0, y, term.col, y); term.dirty[y] = 0; base = term.line[y][0]; ic = ib = ox = 0; for (x = x1; x < x2; x++) { new = term.line[y][x]; if (new.mode == ATTR_WDUMMY) continue; if (ena_sel && selected(x, y)) new.mode ^= ATTR_REVERSE; if (ib > 0 && (ATTRCMP(base, new) || ib >= DRAW_BUF_SIZ - UTF_SIZ)) { wldraws(buf, base, ox, y, ic, ib); ic = ib = 0; } if (ib == 0) { ox = x; base = new; } ib += utf8encode(new.u, buf + ib); ic += (new.mode &ATTR_WIDE) ? 2 : 1; } if (ib > 0) wldraws(buf, base, ox, y, ic, ib); } wldrawcursor(); } void wlseturgency(int add) { /* XXX: no urgency equivalent yet in wayland */ } int match(uint mask, uint state) { return mask == MOD_MASK_ANY || mask == (state & ~(ignoremod)); } void numlock(const Arg *dummy) { term.numlock ^= 1; } char *kmap(xkb_keysym_t k, uint state) { Key *kp; int i; /* Check for mapped keys out of X11 function keys. */ for (i = 0; i < LEN(mappedkeys); i++) { if (mappedkeys[i] == k) break; } if (i == LEN(mappedkeys)) { if ((k & 0xFFFF) < 0xFD00) return NULL; } for (kp = key; kp < key + LEN(key); kp++) { if (kp->k != k) continue; if (!match(kp->mask, state)) continue; if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0) continue; if (term.numlock && kp->appkey == 2) continue; if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0) continue; if (IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0) continue; return kp->s; } return NULL; } void cresize(int width, int height) { int col, row; if (width != 0) wl.w = width; if (height != 0) wl.h = height; col = (wl.w - 2 * borderpx) / wl.cw; row = (wl.h - 2 * borderpx) / wl.ch; tresize(col, row); wlresize(col, row); ttyresize(); } void regglobal(void *data, struct wl_registry *registry, uint32_t name, const char *interface, uint32_t version) { if (getenv("WTERM_DEBUG")) printf("interface %s\n", interface); if (strcmp(interface, "wl_compositor") == 0) { wl.cmp = wl_registry_bind(registry, name, &wl_compositor_interface, 3); } else if (strcmp(interface, "zxdg_shell_v6") == 0) { // printf("init zxdg_shell_v6\n"); wl.xdgshell_v6 = wl_registry_bind(registry, name, &zxdg_shell_v6_interface, 1); zxdg_shell_v6_add_listener(wl.xdgshell_v6, &shell_v6_listener, NULL); } else if (strcmp(interface, "wl_shm") == 0) { wl.shm = wl_registry_bind(registry, name, &wl_shm_interface, 1); } else if (strcmp(interface, "wl_seat") == 0) { wl.seat = wl_registry_bind(registry, name, &wl_seat_interface, 4); } else if (strcmp(interface, "wl_data_device_manager") == 0) { wl.datadevmanager = wl_registry_bind(registry, name, &wl_data_device_manager_interface, 1); } else if (strcmp(interface, "wl_output") == 0) { /* bind to outputs so we can get surface enter events */ wl_registry_bind(registry, name, &wl_output_interface, 2); } else if (strcmp(interface, "xdg_shell") == 0) { wl.xdgshell = wl_registry_bind(registry, name, &xdg_shell_interface, 1); } } void regglobalremove(void *data, struct wl_registry *registry, uint32_t name) {} void surfenter(void *data, struct wl_surface *surface, struct wl_output *output) { wl.vis++; if (!(wl.state & WIN_VISIBLE)) wl.state |= WIN_VISIBLE; } void surfleave(void *data, struct wl_surface *surface, struct wl_output *output) { if (--wl.vis == 0) wl.state &= ~WIN_VISIBLE; } void framedone(void *data, struct wl_callback *callback, uint32_t msecs) { wl_callback_destroy(callback); wl.framecb = NULL; if (needdraw && wl.state & WIN_VISIBLE) { draw(); } } void kbdkeymap(void *data, struct wl_keyboard *keyboard, uint32_t format, int32_t fd, uint32_t size) { char *string; if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) { close(fd); return; } string = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0); if (string == MAP_FAILED) { close(fd); return; } wl.xkb.keymap = xkb_keymap_new_from_string(wl.xkb.ctx, string, XKB_KEYMAP_FORMAT_TEXT_V1, 0); munmap(string, size); close(fd); wl.xkb.state = xkb_state_new(wl.xkb.keymap); wl.xkb.ctrl = xkb_keymap_mod_get_index(wl.xkb.keymap, XKB_MOD_NAME_CTRL); wl.xkb.alt = xkb_keymap_mod_get_index(wl.xkb.keymap, XKB_MOD_NAME_ALT); wl.xkb.shift = xkb_keymap_mod_get_index(wl.xkb.keymap, XKB_MOD_NAME_SHIFT); wl.xkb.logo = xkb_keymap_mod_get_index(wl.xkb.keymap, XKB_MOD_NAME_LOGO); wl.xkb.mods = 0; } void kbdenter(void *data, struct wl_keyboard *keyboard, uint32_t serial, struct wl_surface *surface, struct wl_array *keys) { wl.state |= WIN_FOCUSED; if (IS_SET(MODE_FOCUS)) ttywrite("\033[I", 3); /* need to redraw the cursor */ needdraw = true; } void kbdleave(void *data, struct wl_keyboard *keyboard, uint32_t serial, struct wl_surface *surface) { /* selection offers are invalidated when we lose keyboard focus */ wl.seloffer = NULL; wl.state &= ~WIN_FOCUSED; if (IS_SET(MODE_FOCUS)) ttywrite("\033[O", 3); /* need to redraw the cursor */ needdraw = true; /* disable key repeat */ repeat.len = 0; } void kbdkey(void *data, struct wl_keyboard *keyboard, uint32_t serial, uint32_t time, uint32_t key, uint32_t state) { xkb_keysym_t ksym; char buf[32], *str; int len; Rune c; Shortcut *bp; if (IS_SET(MODE_KBDLOCK)) return; if (state == WL_KEYBOARD_KEY_STATE_RELEASED) { if (repeat.key == key) repeat.len = 0; return; } ksym = xkb_state_key_get_one_sym(wl.xkb.state, key + 8); len = xkb_keysym_to_utf8(ksym, buf, sizeof buf); if (len > 0) --len; /* 1. shortcuts */ for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) { if (ksym == bp->keysym && match(bp->mod, wl.xkb.mods)) { bp->func(&(bp->arg)); return; } } /* 2. custom keys from config.h */ if ((str = kmap(ksym, wl.xkb.mods))) { len = strlen(str); goto send; } /* 3. composed string from input method */ if (len == 0) return; if (len == 1 && wl.xkb.mods & MOD_MASK_ALT) { if (IS_SET(MODE_8BIT)) { if (*buf < 0177) { c = *buf | 0x80; len = utf8encode(c, buf); } } else { buf[1] = buf[0]; buf[0] = '\033'; len = 2; } } /* convert character to control character */ else if (len == 1 && wl.xkb.mods & MOD_MASK_CTRL) { if ((*buf >= '@' && *buf < '\177') || *buf == ' ') *buf &= 0x1F; else if (*buf == '2') *buf = '\000'; else if (*buf >= '3' && *buf <= '7') *buf -= ('3' - '\033'); else if (*buf == '8') *buf = '\177'; else if (*buf == '/') *buf = '_' & 0x1F; } str = buf; send: memcpy(repeat.str, str, len); repeat.key = key; repeat.len = len; repeat.started = false; clock_gettime(CLOCK_MONOTONIC, &repeat.last); ttysend(str, len); } void kbdmodifiers(void *data, struct wl_keyboard *keyboard, uint32_t serial, uint32_t dep, uint32_t lat, uint32_t lck, uint32_t group) { if (!wl.xkb.state) return; xkb_mod_mask_t mod_mask; xkb_state_update_mask(wl.xkb.state, dep, lat, lck, group, 0, 0); mod_mask = xkb_state_serialize_mods(wl.xkb.state, XKB_STATE_MODS_EFFECTIVE); wl.xkb.mods = 0; if (mod_mask & (1 << wl.xkb.ctrl)) wl.xkb.mods |= MOD_MASK_CTRL; if (mod_mask & (1 << wl.xkb.alt)) wl.xkb.mods |= MOD_MASK_ALT; if (mod_mask & (1 << wl.xkb.shift)) wl.xkb.mods |= MOD_MASK_SHIFT; if (mod_mask & (1 << wl.xkb.logo)) wl.xkb.mods |= MOD_MASK_LOGO; } void kbdrepeatinfo(void *data, struct wl_keyboard *keyboard, int32_t rate, int32_t delay) { keyrepeatdelay = delay; keyrepeatinterval = 1000 / rate; } void ptrenter(void *data, struct wl_pointer *pointer, uint32_t serial, struct wl_surface *surface, wl_fixed_t x, wl_fixed_t y) { struct wl_cursor_image *img = cursor.cursor->images[0]; struct wl_buffer *buffer; wl_pointer_set_cursor(pointer, serial, cursor.surface, img->hotspot_x, img->hotspot_y); buffer = wl_cursor_image_get_buffer(img); wl_surface_attach(cursor.surface, buffer, 0, 0); wl_surface_damage(cursor.surface, 0, 0, img->width, img->height); wl_surface_commit(cursor.surface); } void ptrleave(void *data, struct wl_pointer *pointer, uint32_t serial, struct wl_surface *surface) {} void ptrmotion(void *data, struct wl_pointer *pointer, uint32_t serial, wl_fixed_t x, wl_fixed_t y) { int oldey, oldex, oldsby, oldsey; if (IS_SET(MODE_MOUSE)) { wlmousereportmotion(x, y); return; } wl.px = wl_fixed_to_int(x); wl.py = wl_fixed_to_int(y); if (!sel.mode) return; sel.mode = SEL_READY; oldey = sel.oe.y; oldex = sel.oe.x; oldsby = sel.nb.y; oldsey = sel.ne.y; getbuttoninfo(); if (oldey != sel.oe.y || oldex != sel.oe.x) tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey)); } void ptrbutton(void *data, struct wl_pointer *pointer, uint32_t serial, uint32_t time, uint32_t button, uint32_t state) { Mousekey *mk; if (IS_SET(MODE_MOUSE) && !(wl.xkb.mods & forceselmod)) { wlmousereportbutton(button, state); return; } switch (state) { case WL_POINTER_BUTTON_STATE_RELEASED: if (button == BTN_MIDDLE) { selpaste(NULL); } else if (button == BTN_LEFT) { if (sel.mode == SEL_READY) { getbuttoninfo(); selcopy(serial); } else selclear(); sel.mode = SEL_IDLE; tsetdirt(sel.nb.y, sel.ne.y); } break; case WL_POINTER_BUTTON_STATE_PRESSED: for (mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) { if (button == mk->b && match(mk->mask, wl.xkb.mods)) { ttysend(mk->s, strlen(mk->s)); return; } } if (button == BTN_LEFT) { /* Clear previous selection, logically and visually. */ selclear(); sel.mode = SEL_EMPTY; sel.type = SEL_REGULAR; sel.oe.x = sel.ob.x = x2col(wl.px); sel.oe.y = sel.ob.y = y2row(wl.py); /* * If the user clicks below predefined timeouts * specific snapping behaviour is exposed. */ if (time - sel.tclick2 <= tripleclicktimeout) { sel.snap = SNAP_LINE; } else if (time - sel.tclick1 <= doubleclicktimeout) { sel.snap = SNAP_WORD; } else { sel.snap = 0; } selnormalize(); if (sel.snap != 0) sel.mode = SEL_READY; tsetdirt(sel.nb.y, sel.ne.y); sel.tclick2 = sel.tclick1; sel.tclick1 = time; } break; } } void ptraxis(void *data, struct wl_pointer *pointer, uint32_t time, uint32_t axis, wl_fixed_t value) { Axiskey *ak; int dir = value > 0 ? +1 : -1; if (IS_SET(MODE_MOUSE) && !(wl.xkb.mods & forceselmod)) { wlmousereportaxis(axis, value); return; } for (ak = ashortcuts; ak < ashortcuts + LEN(ashortcuts); ak++) { if (axis == ak->axis && dir == ak->dir && match(ak->mask, wl.xkb.mods)) { ttysend(ak->s, strlen(ak->s)); return; } } } void shellsurfping(void *user, struct wl_shell_surface *surface, uint32_t serial) { wl_shell_surface_pong(surface, serial); if (getenv("WTERM_DEBUG")) printf("shellsurf ping serial=%d\n", serial); } void shellsurfconfigure(void *user, struct wl_shell_surface *surface, uint32_t edges, int32_t w, int32_t h) { if (getenv("WTERM_DEBUG")) printf("shell surface configured\n"); } void shellsurfpopupdone(void *user, struct wl_shell_surface *surface) {} void xdgshellv6ping(void *data, struct zxdg_shell_v6 *shell, uint32_t serial) { zxdg_shell_v6_pong(shell, serial); } void xdgsurfv6configure(void *data, struct zxdg_surface_v6 *surf, uint32_t serial) { zxdg_surface_v6_ack_configure(surf, serial); } void xdgshellping(void *data, struct xdg_shell *shell, uint32_t serial) { xdg_shell_pong(shell, serial); if (getenv("WTERM_DEBUG")) printf("serial=%d\n", serial); } void xdgsurfconfigure(void *data, struct xdg_surface *surf, int32_t w, int32_t h, struct wl_array *states, uint32_t serial) { xdg_surface_ack_configure(surf, serial); xdg_surface_set_app_id(surf, opt_class ? opt_class : termname); wl.configured = true; if (wl.h == h && wl.w == w) return; cresize(w, h); } void xdgtopconfigure(void *data, struct zxdg_toplevel_v6 *top, int32_t w, int32_t h, struct wl_array *states) { zxdg_toplevel_v6_set_app_id(top, opt_class ? opt_class : termname); wl.configured = true; if (wl.w == w && wl.h == h) return; cresize(w, h); } static void close_shell_and_exit() { kill(pid, SIGHUP); exit(0); } void xdgtopclose(void *data, struct zxdg_toplevel_v6 *top) { close_shell_and_exit(); } void xdgsurfclose(void *data, struct xdg_surface *surf) { close_shell_and_exit(); } void datadevoffer(void *data, struct wl_data_device *datadev, struct wl_data_offer *offer) { wl_data_offer_add_listener(offer, &dataofferlistener, NULL); } void datadeventer(void *data, struct wl_data_device *datadev, uint32_t serial, struct wl_surface *surf, wl_fixed_t x, wl_fixed_t y, struct wl_data_offer *offer) {} void datadevleave(void *data, struct wl_data_device *datadev) {} void datadevmotion(void *data, struct wl_data_device *datadev, uint32_t time, wl_fixed_t x, wl_fixed_t y) {} void datadevdrop(void *data, struct wl_data_device *datadev) {} void datadevselection(void *data, struct wl_data_device *datadev, struct wl_data_offer *offer) { if (offer && (uintptr_t)wl_data_offer_get_user_data(offer) == 1) wl.seloffer = offer; else wl.seloffer = NULL; } void dataofferoffer(void *data, struct wl_data_offer *offer, const char *mimetype) { /* mark the offer as usable if it supports plain text */ if (strncmp(mimetype, "text/plain", 10) == 0) wl_data_offer_set_user_data(offer, (void *)(uintptr_t)1); } void datasrctarget(void *data, struct wl_data_source *source, const char *mimetype) {} void datasrcsend(void *data, struct wl_data_source *source, const char *mimetype, int32_t fd) { char *buf = sel.primary; int len = strlen(sel.primary); ssize_t ret; while ((ret = write(fd, buf, MIN(len, BUFSIZ))) > 0) { len -= ret; buf += ret; } close(fd); } void datasrccancelled(void *data, struct wl_data_source *source) { if (sel.source == source) { sel.source = NULL; selclear(); } wl_data_source_destroy(source); } void run(void) { fd_set rfd; int wlfd = wl_display_get_fd(wl.dpy), blinkset = 0; struct timespec drawtimeout, *tv = NULL, now, last, lastblink; ulong msecs; ttynew(); /* Look for initial configure. */ wl_display_roundtrip(wl.dpy); if (!wl.configured) { cresize(wl.w, wl.h); } draw(); clock_gettime(CLOCK_MONOTONIC, &last); lastblink = last; for (;;) { FD_ZERO(&rfd); FD_SET(cmdfd, &rfd); FD_SET(wlfd, &rfd); if (pselect(MAX(wlfd, cmdfd) + 1, &rfd, NULL, NULL, tv, NULL) < 0) { if (errno == EINTR) continue; die("select failed: %s\n", strerror(errno)); } if (FD_ISSET(cmdfd, &rfd)) { ttyread(); if (blinktimeout) { blinkset = tattrset(ATTR_BLINK); if (!blinkset) MODBIT(term.mode, 0, MODE_BLINK); } } if (FD_ISSET(wlfd, &rfd)) { if (wl_display_dispatch(wl.dpy) == -1) die("Connection error\n"); } clock_gettime(CLOCK_MONOTONIC, &now); msecs = -1; if (blinkset && blinktimeout) { if (TIMEDIFF(now, lastblink) >= blinktimeout) { tsetdirtattr(ATTR_BLINK); term.mode ^= MODE_BLINK; lastblink = now; } else { msecs = MIN(msecs, blinktimeout - TIMEDIFF(now, lastblink)); } } if (repeat.len > 0) { if (TIMEDIFF(now, repeat.last) >= (repeat.started ? keyrepeatinterval : keyrepeatdelay)) { repeat.started = true; repeat.last = now; ttysend(repeat.str, repeat.len); } else { msecs = MIN(msecs, (repeat.started ? keyrepeatinterval : keyrepeatdelay) - TIMEDIFF(now, repeat.last)); } } if (needdraw) { if (!wl.framecb) { draw(); } } if (msecs == -1) { tv = NULL; } else { drawtimeout.tv_nsec = 1E6 * msecs; drawtimeout.tv_sec = 0; tv = &drawtimeout; } wl_display_dispatch_pending(wl.dpy); wl_display_flush(wl.dpy); } } void usage(void) { die("%s " VERSION " (c) 2010-2015 st engineers\n" "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n" " [-i] [-t title] [-T title] [-w windowid] [-e command ...]" " [command ...]\n" " st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n" " [-i] [-t title] [-T title] [-w windowid] [-l line]" " [stty_args ...]\n", argv0); } int main(int argc, char *argv[]) { ARGBEGIN { case 'a': allowaltscreen = 0; break; case 'c': opt_class = EARGF(usage()); break; case 'e': if (argc > 0) --argc, ++argv; goto run; case 'f': opt_font = EARGF(usage()); break; case 'o': opt_io = EARGF(usage()); break; case 'l': opt_line = EARGF(usage()); break; case 't': case 'T': opt_title = EARGF(usage()); break; case 'w': opt_embed = EARGF(usage()); break; case 'v': default: usage(); } ARGEND; run: if (argc > 0) { /* eat all remaining arguments */ opt_cmd = argv; if (!opt_title && !opt_line) opt_title = basename(xstrdup(argv[0])); } setlocale(LC_CTYPE, ""); tnew(80, 24); wlinit(); selinit(); run(); return 0; }