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keynav.c
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keynav.c
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/*
* keynav - Keyboard navigation tool.
*
* XXX: Merge 'wininfo' and 'wininfo_history'. The latest history entry is the
* same as wininfo, so use that instead.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <signal.h>
#include <X11/Xlib.h>
#include <X11/XKBlib.h>
#include <X11/Xresource.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include <X11/extensions/shape.h>
#include <X11/extensions/Xinerama.h>
#include <glib.h>
#include <cairo-xlib.h>
#ifdef PROFILE_THINGS
#include <time.h>
#endif
#include <xdo.h>
#include "keynav_version.h"
#ifndef GLOBAL_CONFIG_FILE
#define GLOBAL_CONFIG_FILE "/etc/keynavrc"
#endif /* GLOBAL_CONFIG_FILE */
extern char **environ;
char **g_argv;
#define ISACTIVE (appstate.active)
#define ISDRAGGING (appstate.dragging)
struct appstate {
int active;
int dragging;
int need_draw;
int need_moveresize;
enum { record_getkey, record_ing, record_off } recording;
int playback;
int grid_nav; /* 1 if grid nav is active */
enum { GRID_NAV_COL, GRID_NAV_ROW } grid_nav_state;
enum { GRID_LABEL_NONE, GRID_LABEL_AA } grid_label;
int grid_nav_col;
int grid_nav_row;
};
typedef enum { HANDLE_CONTINUE, HANDLE_STOP } handler_info_t;
typedef struct recording {
int keycode;
GPtrArray *commands;
} recording_t;
GPtrArray *recordings;
recording_t *active_recording = NULL;
char *recordings_filename = NULL;
typedef struct wininfo {
int x;
int y;
int w;
int h;
int grid_rows;
int grid_cols;
int border_thickness;
int center_cut_size;
int curviewport;
} wininfo_t;
typedef struct mouseinfo {
int x;
int y;
} mouseinfo_t;
typedef struct viewport {
int x;
int y;
int w;
int h;
int screen_num;
Screen *screen;
Window root;
} viewport_t;
static wininfo_t wininfo;
static mouseinfo_t mouseinfo;
static viewport_t *viewports;
static int nviewports = 0;
static int xinerama = 0;
static int daemonize = 0;
static int is_daemon = False;
static Display *dpy;
static Window zone;
XRectangle *clip_rectangles = NULL;
int nclip_rectangles = 0;
static GC canvas_gc;
static Pixmap canvas;
static cairo_surface_t *canvas_surface;
static cairo_t *canvas_cairo;
static Pixmap shape;
static cairo_surface_t *shape_surface;
static cairo_t *shape_cairo;
static xdo_t *xdo;
static struct appstate appstate = {
.active = 0,
.dragging = 0,
.recording = record_off,
.grid_nav = 0,
};
static int drag_button = 0;
static char drag_modkeys[128];
/* history tracking */
#define WININFO_MAXHIST (100)
static wininfo_t wininfo_history[WININFO_MAXHIST]; /* XXX: is 100 enough? */
static int wininfo_history_cursor = 0;
void defaults();
void cmd_cell_select(char *args);
void cmd_click(char *args);
void cmd_cursorzoom(char *args);
void cmd_cut_down(char *args);
void cmd_cut_left(char *args);
void cmd_cut_right(char *args);
void cmd_cut_up(char *args);
void cmd_daemonize(char *args);
void cmd_doubleclick(char *args);
void cmd_drag(char *args);
void cmd_end(char *args);
void cmd_grid(char *args);
void cmd_grid_nav(char *args);
void cmd_history_back(char *args);
void cmd_loadconfig(char *args);
void cmd_move_down(char *args);
void cmd_move_left(char *args);
void cmd_move_right(char *args);
void cmd_move_up(char *args);
void cmd_quit(char *args);
void cmd_record(char *args);
void cmd_playback(char *args);
void cmd_restart(char *args);
void cmd_shell(char *args);
void cmd_start(char *args);
void cmd_warp(char *args);
void cmd_windowzoom(char *args);
void update();
void correct_overflow();
void handle_keypress(XKeyEvent *e);
void handle_commands(char *commands);
void parse_config();
int parse_config_line(char *line);
void save_history_point();
void restore_history_point(int moves_ago);
void cell_select(int x, int y);
handler_info_t handle_recording(XKeyEvent *e);
handler_info_t handle_gridnav(XKeyEvent *e);
void query_screens();
void query_screen_xinerama();
void query_screen_normal();
int viewport_sort(const void *a, const void *b);
int query_current_screen();
int query_current_screen_xinerama();
int query_current_screen_normal();
void viewport_left();
void viewport_right();
int pointinrect(int px, int py, int rx, int ry, int rw, int rh);
int percent_of(int num, char *args, float default_val);
void sigchld(int sig);
void sighup(int sig);
void restart();
void recordings_save(const char *filename);
void parse_recordings(const char *filename);
void openpixel(Display *dpy, Window zone, mouseinfo_t *mouseinfo);
void closepixel(Display *dpy, Window zone, mouseinfo_t *mouseinfo);
typedef struct dispatch {
char *command;
void (*func)(char *args);
} dispatch_t;
dispatch_t dispatch[] = {
"cut-up", cmd_cut_up,
"cut-down", cmd_cut_down,
"cut-left", cmd_cut_left,
"cut-right", cmd_cut_right,
"move-up", cmd_move_up,
"move-down", cmd_move_down,
"move-left", cmd_move_left,
"move-right", cmd_move_right,
"cursorzoom", cmd_cursorzoom,
"windowzoom", cmd_windowzoom,
// Grid commands
"grid", cmd_grid,
"grid-nav", cmd_grid_nav,
"cell-select", cmd_cell_select,
// Mouse activity
"warp", cmd_warp,
"click", cmd_click,
"doubleclick", cmd_doubleclick,
"drag", cmd_drag,
// Other commands.
"loadconfig", cmd_loadconfig,
"daemonize", cmd_daemonize,
"sh", cmd_shell,
"start", cmd_start,
"end", cmd_end,
"history-back", cmd_history_back,
"quit", cmd_quit,
"restart", cmd_restart,
"record", cmd_record,
"playback", cmd_playback,
NULL, NULL,
};
typedef struct keybinding {
char *commands;
int keycode;
int mods;
} keybinding_t;
GPtrArray *keybindings = NULL;
int parse_keycode(char *keyseq) {
char *tokctx;
char *strptr;
char *tok;
char *last_tok;
char *dup;
int keycode = 0;
int keysym = 0;
strptr = dup = strdup(keyseq);
//printf("finding keycode for %s\n", keyseq);
while ((tok = strtok_r(strptr, "+", &tokctx)) != NULL) {
last_tok = tok;
strptr = NULL;
}
keysym = XStringToKeysym(last_tok);
if (keysym == NoSymbol) {
fprintf(stderr, "No keysym found for '%s' in sequence '%s'\n",
last_tok, keyseq);
/* At this point, we'll be returning 0 for keycode */
} else {
/* Valid keysym */
keycode = XKeysymToKeycode(dpy, keysym);
if (keycode == 0) {
fprintf(stderr, "Unable to lookup keycode for %s\n", last_tok);
}
}
free(dup);
return keycode;
}
int parse_mods(char *keyseq) {
char *tokctx;
char *strptr;
char *tok;
char *last_tok;
char *dup;
GPtrArray *mods;
int modmask = 0;
mods = g_ptr_array_new();
strptr = dup = strdup(keyseq);
while ((tok = strtok_r(strptr, "+", &tokctx)) != NULL) {
strptr = NULL;
g_ptr_array_add(mods, tok);
}
int i = 0;
/* Use all but the last token as modifiers */
const char **symbol_map = xdo_get_symbol_map();
for (i = 0; i < mods->len; i++) {
KeySym keysym = 0;
int j = 0;
const char *mod = g_ptr_array_index(mods, i);
for (j = 0; symbol_map[j] != NULL; j+=2) {
if (!strcasecmp(mod, symbol_map[j])) {
mod = symbol_map[j + 1];
}
}
keysym = XStringToKeysym(mod);
//printf("%s => %d\n", mod, keysym);
if ((keysym == XK_Shift_L) || (keysym == XK_Shift_R))
modmask |= ShiftMask;
if ((keysym == XK_Control_L) || (keysym == XK_Control_R))
modmask |= ControlMask;
if ((keysym == XK_Alt_L) || (keysym == XK_Alt_R))
modmask |= Mod1Mask;
if ((keysym == XK_Super_L) || (keysym == XK_Super_R)
|| (keysym == XK_Hyper_L) || (keysym == XK_Hyper_R))
modmask |= Mod4Mask;
/* 'xmodmap' will output the current modN:KeySym mappings */
}
free(dup);
g_ptr_array_free(mods, FALSE);
return modmask;
}
void addbinding(int keycode, int mods, char *commands) {
int i;
// Check if we already have a binding for this, if so, override it.
for (i = 0; i < keybindings->len; i++) {
keybinding_t *kbt = g_ptr_array_index(keybindings, i);
if (kbt->keycode == keycode && kbt->mods == mods) {
free(kbt->commands);
kbt->commands = strdup(commands);
return;
}
}
keybinding_t *keybinding = NULL;
keybinding = calloc(sizeof(keybinding_t), 1);
keybinding->commands = strdup(commands);
keybinding->keycode = keycode;
keybinding->mods = mods;
g_ptr_array_add(keybindings, keybinding);
if (!strncmp(commands, "start", 5)) {
int i = 0;
/* Grab on all screen root windows */
for (i = 0; i < ScreenCount(dpy); i++) {
Window root = RootWindow(dpy, i);
XGrabKey(dpy, keycode, mods, root, False, GrabModeAsync, GrabModeAsync);
XGrabKey(dpy, keycode, mods | LockMask, root, False, GrabModeAsync, GrabModeAsync);
XGrabKey(dpy, keycode, mods | Mod2Mask, root, False, GrabModeAsync, GrabModeAsync);
XGrabKey(dpy, keycode, mods | LockMask | Mod2Mask, root, False, GrabModeAsync, GrabModeAsync);
}
}
if (!strncmp(commands, "record", 6)) {
char *path = commands + 6;
char *newrecordingpath;
while (isspace(*path))
path++;
/* If args is nonempty, try to use it as the file to store recordings in */
if (path != NULL && path[0] != '\0') {
/* Handle ~/ swapping in for actual homedir */
if (!strncmp(path, "~/", 2)) {
asprintf(&newrecordingpath, "%s/%s", getenv("HOME"), path + 2);
} else {
newrecordingpath = strdup(path);
}
/* Fail if we try to set the record file to another name than we set
* previously */
if (recordings_filename != NULL
&& strcmp(recordings_filename, newrecordingpath)) {
free(newrecordingpath);
fprintf(stderr,
"Recordings file already set to '%s', you tried to\n"
"set it to '%s'. Keeping original value.\n",
recordings_filename, path);
} else {
recordings_filename = newrecordingpath;
parse_recordings(recordings_filename);
}
}
} /* special config handling for 'record' */
}
void parse_config_file(const char* file) {
FILE *fp = NULL;
#define LINEBUF_SIZE 512
char line[LINEBUF_SIZE];
int lineno = 0;
if (file[0] == '~') {
const char *homedir = getenv("HOME");
if (homedir != NULL) {
char *rcfile = NULL;
asprintf(&rcfile, "%s/%s", homedir, file + 1 /* skip first char '~' */);
parse_config_file(rcfile);
free(rcfile);
return;
} else {
fprintf(stderr,
"No HOME set in environment. Can't expand '%s' (fatal error)\n",
file);
/* This is fatal. */
exit(1);
}
} /* if file[0] == '~' */
fp = fopen(file, "r");
/* Silently ignore file read errors */
if (fp == NULL) {
//fprintf(stderr, "Error trying to open file for read '%s'\n", file);
//perror("Error");
return;
}
/* fopen succeeded */
while (fgets(line, LINEBUF_SIZE, fp) != NULL) {
lineno++;
/* Kill the newline */
*(line + strlen(line) - 1) = '\0';
if (parse_config_line(line) != 0) {
fprintf(stderr, "Error with config %s:%d: %s\n", file, lineno, line);
}
}
fclose(fp);
}
void parse_config() {
char *homedir;
keybindings = g_ptr_array_new();
recordings = g_ptr_array_new();
defaults();
parse_config_file(GLOBAL_CONFIG_FILE);
parse_config_file("~/.keynavrc");
}
void defaults() {
char *tmp;
int i;
char *default_config[] = {
"clear",
"ctrl+semicolon start",
"Escape end",
"ctrl+bracketleft end", /* for vi people who use ^[ */
"q record ~/.keynav_macros",
"shift+at playback",
"a history-back",
"h cut-left",
"j cut-down",
"k cut-up",
"l cut-right",
"shift+h move-left",
"shift+j move-down",
"shift+k move-up",
"shift+l move-right",
"space warp,click 1,end",
"Return warp,click 1,end",
"semicolon warp,end",
"w warp",
"t windowzoom",
"c cursorzoom 300 300",
"e end",
"1 click 1",
"2 click 2",
"3 click 3",
"ctrl+h cut-left",
"ctrl+j cut-down",
"ctrl+k cut-up",
"ctrl+l cut-right",
"y cut-left,cut-up",
"u cut-right,cut-up",
"b cut-left,cut-down",
"n cut-right,cut-down",
"shift+y move-left,move-up",
"shift+u move-right,move-up",
"shift+b move-left,move-down",
"shift+n move-right,move-down",
"ctrl+y cut-left,cut-up",
"ctrl+u cut-right,cut-up",
"ctrl+b cut-left,cut-down",
"ctrl+n cut-right,cut-down",
NULL,
};
for (i = 0; default_config[i]; i++) {
tmp = strdup(default_config[i]);
if (parse_config_line(tmp) != 0) {
fprintf(stderr, "Error with default config line %d: %s\n", i + 1, tmp);
}
free(tmp);
}
}
int parse_config_line(char *orig_line) {
/* syntax:
* keysequence cmd1,cmd2,cmd3
*
* ex:
* ctrl+semicolon start
* space warp
* semicolon warp,click
*/
char *line = strdup(orig_line);
char *tokctx;
char *keyseq;
int keycode, mods;
char *comment;
/* Ignore everything after a '#' */
comment = strchr(line, '#');
if (comment != NULL)
*comment = '\0';
/* Ignore leading whitespace */
while (isspace(*line))
line++;
/* Ignore empty lines */
if (*line == '\n' || *line == '\0')
return 0;
tokctx = line;
keyseq = strdup(strtok_r(line, " ", &tokctx));
/* A special config option that will clear all keybindings */
if (strcmp(keyseq, "clear") == 0) {
/* TODO(sissel): Make this a cmd_clear function */
/* Reset keybindings */
g_ptr_array_free(keybindings, TRUE);
keybindings = g_ptr_array_new();
} else if (strcmp(keyseq, "daemonize") == 0) {
handle_commands(keyseq);
} else if (strcmp(keyseq, "loadconfig") == 0) {
handle_commands(keyseq);
} else {
keycode = parse_keycode(keyseq);
if (keycode == 0) {
fprintf(stderr, "Problem parsing keysequence '%s'\n", keyseq);
return 1;
}
mods = parse_mods(keyseq);
/* FreeBSD sets 'tokctx' to NULL at end of string.
* glibc sets 'tokctx' to the next character (the '\0')
* Reported by Richard Kolkovich */
if (tokctx == NULL || *tokctx == '\0') {
fprintf(stderr, "Incomplete configuration line. Missing commands: '%s'\n", line);
return 1;
}
addbinding(keycode, mods, tokctx /* the remainder of the line */);
}
free(keyseq);
free(line);
return 0;
}
int percent_of(int num, char *args, float default_val) {
static float precision = 100000.0;
float pct = 0.0;
int value = 0;
/* Parse a float. If this fails, assume the default value */
if (sscanf(args, "%f", &pct) <= 0)
pct = default_val;
/* > 1, then it's not a percent, it's an absolute value. */
if (pct > 1.0)
return (int)pct;
value = (int)((num * (pct * precision)) / precision);
return value;
}
void updatecliprects(wininfo_t *info, XRectangle **rectangles, int *nrects) {
int rects = (info->grid_cols + 1) + (info->grid_rows + 1) /* grid lines */
+ (info->grid_cols * info->grid_rows); /* grid text boxes */
if (rects != nclip_rectangles) {
nclip_rectangles = rects;
clip_rectangles = realloc(clip_rectangles, nclip_rectangles * sizeof(XRectangle));
}
}
void updategrid(Window win, struct wininfo *info, int apply_clip, int draw) {
double w = info->w;
double h = info->h;
double cell_width;
double cell_height;
int i;
int rect = 0;
if (apply_clip) {
updatecliprects(info, &clip_rectangles, &nclip_rectangles);
memset(clip_rectangles, 0, nclip_rectangles * sizeof(XRectangle));
}
#ifdef PROFILE_THINGS
struct timespec start, end;
clock_gettime(CLOCK_MONOTONIC, &start);
#endif
if (w <= 4 || h <= 4) {
cairo_new_path(canvas_cairo);
cairo_fill(canvas_cairo);
return;
}
//printf("updategrid: clip:%d, draw:%d\n", apply_clip, draw);
if (draw) {
cairo_new_path(canvas_cairo);
cairo_set_source_rgb(canvas_cairo, 1, 1, 1);
cairo_rectangle(canvas_cairo, 0, 0, w, h);
cairo_set_line_width(canvas_cairo, wininfo.border_thickness);
cairo_fill(canvas_cairo);
}
cell_width = (w / info->grid_cols);
cell_height = (h / info->grid_rows);
int x_total_offset = 0;
/* clip vertically */
for (i = 0; i <= info->grid_cols; i++) {
int x_off = 0;
if (i > 0) {
x_off = -info->border_thickness / 2;
}
if (i == info->grid_cols) {
x_total_offset = info->w - 1;
}
int x_w_off = 0;
if (i == 0 || i == info->grid_cols) {
x_w_off = info->border_thickness / 2;
}
cairo_move_to(canvas_cairo, x_total_offset + 1, 0);
cairo_line_to(canvas_cairo, x_total_offset + 1, info->h);
clip_rectangles[rect].x = x_total_offset + x_off;
clip_rectangles[rect].y = 0;
clip_rectangles[rect].width = info->border_thickness - x_w_off;
clip_rectangles[rect].height = info->h;
rect++;
x_total_offset += cell_width;
}
int y_total_offset = 0;
/* clip horizontally */
for (i = 0; i <= info->grid_rows; i++) {
int y_off = 0;
if (i > 0) {
y_off = -info->border_thickness / 2;
}
if (i == info->grid_rows) {
y_total_offset = info->h - 1;
}
int y_w_off = 0;
if (i == 0 || i == info->grid_rows) {
y_w_off = info->border_thickness / 2;
}
cairo_move_to(canvas_cairo, 0, y_total_offset + 1);
cairo_line_to(canvas_cairo, info->w, y_total_offset + 1);
clip_rectangles[rect].x = 0;
clip_rectangles[rect].y = y_total_offset + y_off;
clip_rectangles[rect].width = info->w;
clip_rectangles[rect].height = info->border_thickness - y_w_off;
rect++;
y_total_offset += cell_height;
}
cairo_path_t *path = cairo_copy_path(canvas_cairo);
#ifdef PROFILE_THINGS
clock_gettime(CLOCK_MONOTONIC, &end);
printf("updategrid pathbuild time: %ld.%09ld\n",
end.tv_sec - start.tv_sec,
end.tv_nsec - start.tv_nsec);
clock_gettime(CLOCK_MONOTONIC, &start);
#endif
if (draw) {
cairo_set_source_rgba(canvas_cairo, 0, 0, 0, 1.0);
cairo_set_line_width(canvas_cairo, 1);
cairo_stroke(canvas_cairo);
#ifdef PROFILE_THINGS
XSync(dpy, False);
clock_gettime(CLOCK_MONOTONIC, &end);
printf("updategrid draw time: %ld.%09ld\n",
end.tv_sec - start.tv_sec,
end.tv_nsec - start.tv_nsec);
clock_gettime(CLOCK_MONOTONIC, &start);
#endif
} /* if draw */
cairo_path_destroy(path);
}
void updategridtext(Window win, struct wininfo *info, int apply_clip, int draw) {
double w = info->w;
double h = info->h;
double cell_width;
double cell_height;
double x_off, y_off;
int row, col;
int rect = (info->grid_cols + 1 + info->grid_rows + 1); /* start at end of grid lines */
x_off = info->border_thickness / 2;
y_off = info->border_thickness / 2;
cairo_text_extents_t te;
#define FONTSIZE 18
if (draw) {
cairo_new_path(canvas_cairo);
cairo_select_font_face(canvas_cairo, "Courier", CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_BOLD);
cairo_set_font_size(canvas_cairo, FONTSIZE);
cairo_text_extents(canvas_cairo, "AA", &te);
}
w -= info->border_thickness;
h -= info->border_thickness;
cell_width = (w / info->grid_cols);
cell_height = (h / info->grid_rows);
h++;
w++;
//printf("bearing: %f,%f\n", te.x_bearing, te.y_bearing);
//printf("size: %f,%f\n", te.width, te.height);
char label[3] = "AA";
int row_selected = 0;
for (col = 0; col < info->grid_cols; col++) {
label[0] = 'A';
for (row = 0; row < info->grid_rows; row++) {
int rectwidth = te.width + 25;
int rectheight = te.height + 8;
int xpos = cell_width * col + x_off + (cell_width / 2);
int ypos = cell_height * row + y_off + (cell_height / 2);
row_selected = (appstate.grid_nav && appstate.grid_nav_row == row
&& appstate.grid_nav_state == GRID_NAV_COL);
//printf("Grid: %c%c\n", label[0], label[1]);
/* If the current column is the one selected by grid nav, use
* a different color */
//printf("Grid geom: %fx%f @ %d,%d\n",
//xpos - rectwidth / 2 + te.x_bearing / 2,
//ypos - rectheight / 2 + te.y_bearing / 2,
//rectwidth, rectheight);
cairo_rectangle(canvas_cairo,
xpos - rectwidth / 2 + te.x_bearing / 2,
ypos - rectheight / 2 + te.y_bearing / 2,
rectwidth, rectheight);
if (draw) {
cairo_path_t *pathcopy;
pathcopy = cairo_copy_path(canvas_cairo);
cairo_set_line_width(shape_cairo, 2);
if (row_selected) {
cairo_set_source_rgb(canvas_cairo, 0, .3, .3);
} else {
cairo_set_source_rgb(canvas_cairo, 0, .2, 0);
}
cairo_fill(canvas_cairo);
cairo_append_path(canvas_cairo, pathcopy);
cairo_set_source_rgb(canvas_cairo, .8, .8, 0);
cairo_stroke(canvas_cairo);
cairo_path_destroy(pathcopy);
if (row_selected) {
cairo_set_source_rgb(canvas_cairo, 1, 1, 1);
} else {
cairo_set_source_rgb(canvas_cairo, .8, .8, .8);
}
cairo_fill(canvas_cairo);
cairo_move_to(canvas_cairo, xpos - te.width / 2, ypos);
cairo_show_text(canvas_cairo, label);
}
if (apply_clip) {
clip_rectangles[rect].x = xpos - rectwidth / 2 + te.x_bearing / 2;
clip_rectangles[rect].y = ypos - rectheight / 2 + te.y_bearing / 2;
clip_rectangles[rect].width = rectwidth + 1;
clip_rectangles[rect].height = rectheight + 1;
rect++;
}
label[0]++;
}
label[1]++;
} /* Draw rectangles and text */
} /* void updategridtext */
void grab_keyboard() {
int grabstate;
int grabtries = 0;
/* This loop is to work around the following scenario:
* xbindkeys invokes XGrabKeyboard when you press a bound keystroke and
* doesn't Ungrab until you release a key.
* Example: (xbindkey '(Control semicolon) "keynav 'start, grid 2x2'")
* This will only invoke XUngrabKeyboard when you release 'semicolon'
*
* The problem is that keynav would be launched as soon as the keydown
* event 'control + semicolon' occurs, but we could only get the grab on
* the release.
*
* This sleepyloop will keep trying to grab the keyboard until it succeeds.
*
* Reported by Colin Shea
*/
grabstate = XGrabKeyboard(dpy, viewports[wininfo.curviewport].root, False,
GrabModeAsync, GrabModeAsync, CurrentTime);
while (grabstate != GrabSuccess) {
usleep(10000); /* sleep for 10ms */
grabstate = XGrabKeyboard(dpy, viewports[wininfo.curviewport].root, False,
GrabModeAsync, GrabModeAsync, CurrentTime);
grabtries += 1;
if (grabtries >= 20) {
fprintf(stderr, "XGrabKeyboard failed %d times, giving up...\n",
grabtries);
/* Returning from here will result in the appstate.active still
* being false. */
return;
}
}
//printf("Got grab!\n");
}
void cmd_start(char *args) {
XSetWindowAttributes winattr;
int i;
int screen;
screen = query_current_screen();
wininfo.curviewport = screen;
appstate.grid_nav_row = -1;
appstate.grid_nav_col = -1;
wininfo.x = viewports[wininfo.curviewport].x;
wininfo.y = viewports[wininfo.curviewport].y;
wininfo.w = viewports[wininfo.curviewport].w;
wininfo.h = viewports[wininfo.curviewport].h;
grab_keyboard();
/* Default start with 4 cells, 2x2 */
wininfo.grid_rows = 2;
wininfo.grid_cols = 2;
wininfo.border_thickness = 3;
wininfo.center_cut_size = 3;
if (ISACTIVE)
return;
int depth;
appstate.active = True;
appstate.need_draw = 1;
appstate.need_moveresize = 1;
if (zone == 0) { /* Create our window for the first time */
viewport_t *viewport = &(viewports[wininfo.curviewport]);
depth = viewports[wininfo.curviewport].screen->root_depth;
wininfo_history_cursor = 0;
zone = XCreateSimpleWindow(dpy, viewport->root,
wininfo.x, wininfo.y, wininfo.w, wininfo.h, 0, 0, 0);
xdo_set_window_class(xdo, zone, "keynav", "keynav");
canvas_gc = XCreateGC(dpy, zone, 0, NULL);
canvas = XCreatePixmap(dpy, zone, viewport->w, viewport->h,
viewport->screen->root_depth);
canvas_surface = cairo_xlib_surface_create(dpy, canvas,
viewport->screen->root_visual,
viewport->w, viewport->h);
canvas_cairo = cairo_create(canvas_surface);
cairo_set_antialias(canvas_cairo, CAIRO_ANTIALIAS_NONE);
cairo_set_line_cap(canvas_cairo, CAIRO_LINE_CAP_SQUARE);
shape = XCreatePixmap(dpy, zone, viewport->w, viewport->h, 1);
shape_surface = cairo_xlib_surface_create_for_bitmap(dpy, shape,
viewport->screen,
viewport->w,
viewport->h);
shape_cairo = cairo_create(shape_surface);
cairo_set_line_width(shape_cairo, wininfo.border_thickness);
cairo_set_antialias(canvas_cairo, CAIRO_ANTIALIAS_NONE);
cairo_set_line_cap(shape_cairo, CAIRO_LINE_CAP_SQUARE);
/* Tell the window manager not to manage us */
winattr.override_redirect = 1;
XChangeWindowAttributes(dpy, zone, CWOverrideRedirect, &winattr);
XSelectInput(dpy, zone, StructureNotifyMask | ExposureMask
| PointerMotionMask | LeaveWindowMask );
} /* if zone == 0 */
}
void cmd_end(char *args) {
if (!ISACTIVE)
return;
/* kill drag state too */
if (ISDRAGGING)
cmd_drag(NULL);
/* Stop recording if we're in that mode */
if (appstate.recording != record_off) {
cmd_record(NULL);
}
appstate.active = False;
XUnmapWindow(dpy, zone);
cairo_destroy(shape_cairo);
cairo_surface_destroy(shape_surface);
cairo_destroy(canvas_cairo);
cairo_surface_destroy(canvas_surface);
XFreePixmap(dpy, shape);
XFreePixmap(dpy, canvas);
XFreeGC(dpy, canvas_gc);
XDestroyWindow(dpy, zone);
XUngrabKeyboard(dpy, CurrentTime);
zone = 0;
}
void cmd_history_back(char *args) {
if (!ISACTIVE)
return;
restore_history_point(1);
}
void cmd_loadconfig(char *args) {
// Trim leading and trailing quotes if they exist
if (*args == '"') {
args++;
*(args + strlen(args) - 1) = '\0';
}
parse_config_file(args);
}
void cmd_shell(char *args) {
// Trim leading and trailing quotes if they exist
if (*args == '"') {
args++;
*(args + strlen(args) - 1) = '\0';
}
if (fork() == 0) { /* child */
int ret;
char *const shell = "/bin/sh";
char *const argv[4] = { shell, "-c", args, NULL };
//printf("Exec: %s\n", args);
//printf("Shell: %s\n", shell);
ret = execvp(shell, argv);
perror("execve");
exit(1);
}
}
void cmd_quit(char *args) {
exit(0);
}