gri3-wm/src/load_layout.c

161 lines
4.7 KiB
C

#include <yajl/yajl_common.h>
#include <yajl/yajl_gen.h>
#include <yajl/yajl_parse.h>
#include "all.h"
/* TODO: refactor the whole parsing thing */
static char *last_key;
static Con *json_node;
static bool parsing_swallows;
static bool parsing_rect;
struct Match *current_swallow;
static int json_start_map(void *ctx) {
LOG("start of map\n");
if (parsing_swallows) {
LOG("TODO: create new swallow\n");
current_swallow = scalloc(sizeof(Match));
TAILQ_INSERT_TAIL(&(json_node->swallow_head), current_swallow, matches);
} else {
if (!parsing_rect)
json_node = con_new(json_node);
}
return 1;
}
static int json_end_map(void *ctx) {
LOG("end of map\n");
if (!parsing_swallows && !parsing_rect)
json_node = json_node->parent;
if (parsing_rect)
parsing_rect = false;
return 1;
}
static int json_end_array(void *ctx) {
LOG("end of array\n");
parsing_swallows = false;
return 1;
}
static int json_key(void *ctx, const unsigned char *val, unsigned int len) {
LOG("key: %.*s\n", len, val);
FREE(last_key);
last_key = scalloc((len+1) * sizeof(char));
memcpy(last_key, val, len);
if (strcasecmp(last_key, "swallows") == 0) {
parsing_swallows = true;
}
if (strcasecmp(last_key, "rect") == 0)
parsing_rect = true;
return 1;
}
static int json_string(void *ctx, const unsigned char *val, unsigned int len) {
LOG("string: %.*s for key %s\n", len, val, last_key);
if (parsing_swallows) {
/* TODO: the other swallowing keys */
if (strcasecmp(last_key, "class") == 0) {
current_swallow->class = scalloc((len+1) * sizeof(char));
memcpy(current_swallow->class, val, len);
}
LOG("unhandled yet: swallow\n");
} else {
if (strcasecmp(last_key, "name") == 0) {
json_node->name = scalloc((len+1) * sizeof(char));
memcpy(json_node->name, val, len);
}
}
return 1;
}
static int json_int(void *ctx, long val) {
LOG("int %d for key %s\n", val, last_key);
if (strcasecmp(last_key, "orientation") == 0) {
json_node->orientation = val;
}
if (strcasecmp(last_key, "layout") == 0) {
json_node->layout = val;
}
if (strcasecmp(last_key, "type") == 0) {
json_node->type = val;
}
if (strcasecmp(last_key, "fullscreen_mode") == 0) {
json_node->fullscreen_mode = val;
}
if (parsing_rect) {
if (strcasecmp(last_key, "x") == 0)
json_node->rect.x = val;
else if (strcasecmp(last_key, "y") == 0)
json_node->rect.y = val;
else if (strcasecmp(last_key, "width") == 0)
json_node->rect.width = val;
else if (strcasecmp(last_key, "height") == 0)
json_node->rect.height = val;
else printf("WARNING: unknown key %s in rect\n", last_key);
printf("rect now: (%d, %d, %d, %d)\n",
json_node->rect.x, json_node->rect.y,
json_node->rect.width, json_node->rect.height);
}
if (parsing_swallows) {
if (strcasecmp(last_key, "id") == 0) {
current_swallow->id = val;
}
}
return 1;
}
static int json_double(void *ctx, double val) {
LOG("double %f for key %s\n", val, last_key);
if (strcasecmp(last_key, "percent") == 0) {
json_node->percent = val;
}
return 1;
}
void tree_append_json(const char *filename) {
/* TODO: percent of other windows are not correctly fixed at the moment */
FILE *f;
if ((f = fopen(filename, "r")) == NULL) {
LOG("Cannot open file\n");
return;
}
char *buf = malloc(65535); /* TODO */
int n = fread(buf, 1, 65535, f);
LOG("read %d bytes\n", n);
yajl_gen g;
yajl_handle hand;
yajl_callbacks callbacks;
memset(&callbacks, '\0', sizeof(yajl_callbacks));
callbacks.yajl_start_map = json_start_map;
callbacks.yajl_end_map = json_end_map;
callbacks.yajl_end_array = json_end_array;
callbacks.yajl_string = json_string;
callbacks.yajl_map_key = json_key;
callbacks.yajl_integer = json_int;
callbacks.yajl_double = json_double;
g = yajl_gen_alloc(NULL, NULL);
hand = yajl_alloc(&callbacks, NULL, NULL, (void*)g);
yajl_status stat;
json_node = focused;
setlocale(LC_NUMERIC, "C");
stat = yajl_parse(hand, (const unsigned char*)buf, n);
if (stat != yajl_status_ok &&
stat != yajl_status_insufficient_data)
{
unsigned char * str = yajl_get_error(hand, 1, (const unsigned char*)buf, n);
fprintf(stderr, (const char *) str);
yajl_free_error(hand, str);
}
setlocale(LC_NUMERIC, "");
yajl_parse_complete(hand);
fclose(f);
//con_focus(json_node);
}