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#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdarg.h>
#include <getopt.h>
#include <signal.h>
#include <string.h>
#include <Carbon/Carbon.h>
#include "hotload.h"
#include "event_tap.h"
#include "locale.h"
#include "tokenize.h"
#include "parse.h"
#include "hotkey.h"
#include "hotload.c"
#include "event_tap.c"
#include "locale.c"
#include "tokenize.c"
#include "parse.c"
#include "hotkey.c"
#define internal static
extern bool CGSIsSecureEventInputSet();
#define secure_keyboard_entry_enabled CGSIsSecureEventInputSet
internal unsigned major_version = 0;
internal unsigned minor_version = 0;
internal unsigned patch_version = 2;
internal struct hotkey *hotkeys;
internal char *config_file;
internal void
error(const char *format, ...)
{
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
exit(EXIT_FAILURE);
}
internal bool
watched_io_file(struct hotloader *hotloader, char *absolutepath)
{
bool success = false;
for(unsigned index = 0; success == 0 && index < hotloader->watch_count; ++index) {
struct watched_file *watch_info = &hotloader->watch_list[index];
char *directory = file_directory(absolutepath);
char *filename = file_name(absolutepath);
if(strcmp(watch_info->directory, directory) == 0) {
if(strcmp(watch_info->filename, filename) == 0) {
success = true;
}
}
free(filename);
free(directory);
}
return success;
}
internal HOTLOADER_CALLBACK(hotloader_handler)
{
struct hotloader *hotloader = (struct hotloader *) context;
char **files = (char **) paths;
for(unsigned index = 0; index < count; ++index) {
char *absolutepath = files[index];
if(watched_io_file(hotloader, absolutepath)) {
/* TODO(koekeishiya): We sometimes get two events upon file save.
* Filter the duplicated event or something ?? */
struct parser parser;
if(parser_init(&parser, absolutepath)) {
free_hotkeys(hotkeys);
hotkeys = parse_config(&parser);
parser_destroy(&parser);
}
}
}
}
internal EVENT_TAP_CALLBACK(key_handler)
{
switch(type)
{
case kCGEventTapDisabledByTimeout:
case kCGEventTapDisabledByUserInput:
{
printf("skhd: restarting event-tap\n");
struct event_tap *event_tap = (struct event_tap *) reference;
CGEventTapEnable(event_tap->handle, 1);
} break;
case kCGEventKeyDown:
{
uint32_t flags = CGEventGetFlags(event);
uint32_t key = CGEventGetIntegerValueField(event, kCGKeyboardEventKeycode);
struct hotkey eventkey = cgevent_to_hotkey(flags, key);
if(find_and_exec_hotkey(&eventkey, hotkeys)) {
return NULL;
}
} break;
default: {} break;
}
return event;
}
internal bool
parse_arguments(int argc, char **argv)
{
int option;
const char *short_option = "vc:";
struct option long_option[] =
{
{ "version", no_argument, NULL, 'v' },
{ "config", required_argument, NULL, 'c' },
{ NULL, 0, NULL, 0 }
};
while((option = getopt_long(argc, argv, short_option, long_option, NULL)) != -1) {
switch(option)
{
case 'v':
{
printf("skhd version %d.%d.%d\n", major_version, minor_version, patch_version);
return true;
} break;
case 'c':
{
config_file = strdup(optarg);
} break;
}
}
return false;
}
internal bool
check_privileges()
{
bool result = false;
const void *keys[] = { kAXTrustedCheckOptionPrompt };
const void *values[] = { kCFBooleanTrue };
CFDictionaryRef options;
options = CFDictionaryCreate(kCFAllocatorDefault,
keys, values, sizeof(keys) / sizeof(*keys),
&kCFCopyStringDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
result = AXIsProcessTrustedWithOptions(options);
CFRelease(options);
return result;
}
internal void
set_config_path()
{
if(!config_file) {
char *home = getenv("HOME");
if(home) {
int length = strlen(home) + strlen("/.skhdrc");
config_file = (char *) malloc(length + 1);
strcpy(config_file, home);
strcat(config_file, "/.skhdrc");
} else {
config_file = strdup(".skhdrc");
}
}
}
int main(int argc, char **argv)
{
if(parse_arguments(argc, argv)) {
return EXIT_SUCCESS;
}
if(secure_keyboard_entry_enabled()) {
error("skhd: secure keyboard entry is enabled! abort..\n");
}
if(!check_privileges()) {
error("skhd: must be run with accessibility access.\n");
}
signal(SIGCHLD, SIG_IGN);
set_config_path();
printf("skhd: using config '%s'\n", config_file);
struct parser parser;
if(parser_init(&parser, config_file)) {
hotkeys = parse_config(&parser);
parser_destroy(&parser);
} else {
error("skhd: could not open file '%s'\n", config_file);
}
struct event_tap event_tap;
event_tap.mask = (1 << kCGEventKeyDown);
event_tap_begin(&event_tap, key_handler);
struct hotloader hotloader = {};
hotloader_add_file(&hotloader, config_file);
hotloader_begin(&hotloader, hotloader_handler);
CFRunLoopRun();
return EXIT_SUCCESS;
}
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