From d88145fdf91a1681c385b9387cdb45c06822c634 Mon Sep 17 00:00:00 2001 From: Keith Bowes Date: Sun, 16 Jun 2019 14:53:47 -0400 Subject: st => wterm --- src/wterm.c | 4063 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 4063 insertions(+) create mode 100644 src/wterm.c (limited to 'src/wterm.c') diff --git a/src/wterm.c b/src/wterm.c new file mode 100644 index 0000000..c954433 --- /dev/null +++ b/src/wterm.c @@ -0,0 +1,4063 @@ +/* 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_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 wterm and convert '\n' to + * '\r', when something to be pasted is received by + * wterm. + * 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 wterm + * 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("%s: can't open font %s\n", argv0, 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("%s: can't open font %s\n", argv0, 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("%s: can't open font %s\n", argv0, fontstr); + + FcPatternDel(pattern, FC_WEIGHT); + FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); + if (wlloadfont(&dc.ibfont, pattern)) + die("%s: can't open font %s\n", argv0, fontstr); + + FcPatternDel(pattern, FC_SLANT); + FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); + if (wlloadfont(&dc.bfont, pattern)) + die("%s: can't open font %s\n", argv0, 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 : "wterm"); } + +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("%1$s " VERSION " (c) 2010-2015 st engineers, 2015-2019 wterm engineers\n" + "usage: %1$s [-a] [-v] [-c class] [-f font] [-o file]\n" + " [-t title] [-T title] [-e command ...]" + " [command ...]\n" + " %1$s [-a] [-v] [-c class] [-f font] [-o file]\n" + " [-t title] [-T title] [-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 '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; +} -- cgit v1.1