mirror of
https://github.com/swaywm/sway.git
synced 2024-11-01 05:57:17 +00:00
296 lines
10 KiB
C
296 lines
10 KiB
C
#define _POSIX_C_SOURCE 200809L
|
|
#include <json.h>
|
|
#include <linux/input-event-codes.h>
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include "log.h"
|
|
#include "swaybar/bar.h"
|
|
#include "swaybar/config.h"
|
|
#include "swaybar/i3bar.h"
|
|
#include "swaybar/input.h"
|
|
#include "swaybar/status_line.h"
|
|
|
|
void i3bar_block_unref(struct i3bar_block *block) {
|
|
if (block == NULL) {
|
|
return;
|
|
}
|
|
|
|
if (--block->ref_count == 0) {
|
|
free(block->full_text);
|
|
free(block->short_text);
|
|
free(block->align);
|
|
free(block->min_width_str);
|
|
free(block->name);
|
|
free(block->instance);
|
|
free(block->color);
|
|
free(block);
|
|
}
|
|
}
|
|
|
|
static void i3bar_parse_json(struct status_line *status,
|
|
struct json_object *json_array) {
|
|
struct i3bar_block *block, *tmp;
|
|
wl_list_for_each_safe(block, tmp, &status->blocks, link) {
|
|
wl_list_remove(&block->link);
|
|
i3bar_block_unref(block);
|
|
}
|
|
for (size_t i = 0; i < json_object_array_length(json_array); ++i) {
|
|
json_object *full_text, *short_text, *color, *min_width, *align, *urgent;
|
|
json_object *name, *instance, *separator, *separator_block_width;
|
|
json_object *background, *border, *border_top, *border_bottom;
|
|
json_object *border_left, *border_right, *markup;
|
|
json_object *json = json_object_array_get_idx(json_array, i);
|
|
if (!json) {
|
|
continue;
|
|
}
|
|
json_object_object_get_ex(json, "full_text", &full_text);
|
|
json_object_object_get_ex(json, "short_text", &short_text);
|
|
json_object_object_get_ex(json, "color", &color);
|
|
json_object_object_get_ex(json, "min_width", &min_width);
|
|
json_object_object_get_ex(json, "align", &align);
|
|
json_object_object_get_ex(json, "urgent", &urgent);
|
|
json_object_object_get_ex(json, "name", &name);
|
|
json_object_object_get_ex(json, "instance", &instance);
|
|
json_object_object_get_ex(json, "markup", &markup);
|
|
json_object_object_get_ex(json, "separator", &separator);
|
|
json_object_object_get_ex(json, "separator_block_width", &separator_block_width);
|
|
json_object_object_get_ex(json, "background", &background);
|
|
json_object_object_get_ex(json, "border", &border);
|
|
json_object_object_get_ex(json, "border_top", &border_top);
|
|
json_object_object_get_ex(json, "border_bottom", &border_bottom);
|
|
json_object_object_get_ex(json, "border_left", &border_left);
|
|
json_object_object_get_ex(json, "border_right", &border_right);
|
|
|
|
struct i3bar_block *block = calloc(1, sizeof(struct i3bar_block));
|
|
block->ref_count = 1;
|
|
block->full_text = full_text ?
|
|
strdup(json_object_get_string(full_text)) : NULL;
|
|
block->short_text = short_text ?
|
|
strdup(json_object_get_string(short_text)) : NULL;
|
|
if (color) {
|
|
block->color = malloc(sizeof(uint32_t));
|
|
*block->color = parse_color(json_object_get_string(color));
|
|
}
|
|
if (min_width) {
|
|
json_type type = json_object_get_type(min_width);
|
|
if (type == json_type_int) {
|
|
block->min_width = json_object_get_int(min_width);
|
|
} else if (type == json_type_string) {
|
|
/* the width will be calculated when rendering */
|
|
block->min_width_str = strdup(json_object_get_string(min_width));
|
|
}
|
|
}
|
|
block->align = strdup(align ? json_object_get_string(align) : "left");
|
|
block->urgent = urgent ? json_object_get_int(urgent) : false;
|
|
block->name = name ? strdup(json_object_get_string(name)) : NULL;
|
|
block->instance = instance ?
|
|
strdup(json_object_get_string(instance)) : NULL;
|
|
if (markup) {
|
|
block->markup = false;
|
|
const char *markup_str = json_object_get_string(markup);
|
|
if (strcmp(markup_str, "pango") == 0) {
|
|
block->markup = true;
|
|
}
|
|
}
|
|
block->separator = separator ? json_object_get_int(separator) : true;
|
|
block->separator_block_width = separator_block_width ?
|
|
json_object_get_int(separator_block_width) : 9;
|
|
// Airblader features
|
|
block->background = background ?
|
|
parse_color(json_object_get_string(background)) : 0;
|
|
block->border = border ?
|
|
parse_color(json_object_get_string(border)) : 0;
|
|
block->border_top = border_top ? json_object_get_int(border_top) : 1;
|
|
block->border_bottom = border_bottom ?
|
|
json_object_get_int(border_bottom) : 1;
|
|
block->border_left = border_left ? json_object_get_int(border_left) : 1;
|
|
block->border_right = border_right ?
|
|
json_object_get_int(border_right) : 1;
|
|
wl_list_insert(&status->blocks, &block->link);
|
|
}
|
|
}
|
|
|
|
bool i3bar_handle_readable(struct status_line *status) {
|
|
while (!status->started) { // look for opening bracket
|
|
for (size_t c = 0; c < status->buffer_index; ++c) {
|
|
if (status->buffer[c] == '[') {
|
|
status->started = true;
|
|
status->buffer_index -= ++c;
|
|
memmove(status->buffer, &status->buffer[c], status->buffer_index);
|
|
break;
|
|
} else if (!isspace(status->buffer[c])) {
|
|
sway_log(SWAY_DEBUG, "Invalid i3bar json: expected '[' but encountered '%c'",
|
|
status->buffer[c]);
|
|
status_error(status, "[invalid i3bar json]");
|
|
return true;
|
|
}
|
|
}
|
|
if (status->started) {
|
|
break;
|
|
}
|
|
|
|
errno = 0;
|
|
ssize_t read_bytes = read(status->read_fd, status->buffer, status->buffer_size);
|
|
if (read_bytes > -1) {
|
|
status->buffer_index = read_bytes;
|
|
} else if (errno == EAGAIN) {
|
|
return false;
|
|
} else {
|
|
status_error(status, "[error reading from status command]");
|
|
return true;
|
|
}
|
|
}
|
|
|
|
struct json_object *last_object = NULL;
|
|
struct json_object *test_object;
|
|
size_t buffer_pos = 0;
|
|
while (true) {
|
|
// since the incoming stream is an infinite array
|
|
// parsing is split into two parts
|
|
// first, attempt to parse the current object, reading more if the
|
|
// parser indicates that the current object is incomplete, and failing
|
|
// if the parser fails
|
|
// second, look for separating comma, ignoring whitespace, failing if
|
|
// any other characters are encountered
|
|
if (status->expecting_comma) {
|
|
for (; buffer_pos < status->buffer_index; ++buffer_pos) {
|
|
if (status->buffer[buffer_pos] == ',') {
|
|
status->expecting_comma = false;
|
|
++buffer_pos;
|
|
break;
|
|
} else if (!isspace(status->buffer[buffer_pos])) {
|
|
sway_log(SWAY_DEBUG, "Invalid i3bar json: expected ',' but encountered '%c'",
|
|
status->buffer[buffer_pos]);
|
|
status_error(status, "[invalid i3bar json]");
|
|
return true;
|
|
}
|
|
}
|
|
if (buffer_pos < status->buffer_index) {
|
|
continue; // look for new object without reading more input
|
|
}
|
|
buffer_pos = status->buffer_index = 0;
|
|
} else {
|
|
test_object = json_tokener_parse_ex(status->tokener,
|
|
&status->buffer[buffer_pos], status->buffer_index - buffer_pos);
|
|
enum json_tokener_error err = json_tokener_get_error(status->tokener);
|
|
if (err == json_tokener_success) {
|
|
if (json_object_get_type(test_object) == json_type_array) {
|
|
if (last_object) {
|
|
json_object_put(last_object);
|
|
}
|
|
last_object = test_object;
|
|
} else {
|
|
json_object_put(test_object);
|
|
}
|
|
|
|
// in order to print the json for debugging purposes
|
|
// the last character is temporarily replaced with a null character
|
|
// (the last character is used in case the buffer is full)
|
|
char *last_char_pos =
|
|
&status->buffer[buffer_pos + status->tokener->char_offset - 1];
|
|
char last_char = *last_char_pos;
|
|
while (isspace(last_char)) {
|
|
last_char = *--last_char_pos;
|
|
}
|
|
*last_char_pos = '\0';
|
|
size_t offset = strspn(&status->buffer[buffer_pos], " \f\n\r\t\v");
|
|
sway_log(SWAY_DEBUG, "Received i3bar json: '%s%c'",
|
|
&status->buffer[buffer_pos + offset], last_char);
|
|
*last_char_pos = last_char;
|
|
|
|
buffer_pos += status->tokener->char_offset;
|
|
status->expecting_comma = true;
|
|
|
|
if (buffer_pos < status->buffer_index) {
|
|
continue; // look for comma without reading more input
|
|
}
|
|
buffer_pos = status->buffer_index = 0;
|
|
} else if (err == json_tokener_continue) {
|
|
json_tokener_reset(status->tokener);
|
|
if (status->buffer_index < status->buffer_size) {
|
|
// move the object to the start of the buffer
|
|
status->buffer_index -= buffer_pos;
|
|
memmove(status->buffer, &status->buffer[buffer_pos],
|
|
status->buffer_index);
|
|
buffer_pos = 0;
|
|
} else {
|
|
// expand buffer
|
|
status->buffer_size *= 2;
|
|
char *new_buffer = realloc(status->buffer, status->buffer_size);
|
|
if (new_buffer) {
|
|
status->buffer = new_buffer;
|
|
} else {
|
|
free(status->buffer);
|
|
status_error(status, "[failed to allocate buffer]");
|
|
return true;
|
|
}
|
|
}
|
|
} else {
|
|
char last_char = status->buffer[status->buffer_index - 1];
|
|
status->buffer[status->buffer_index - 1] = '\0';
|
|
sway_log(SWAY_DEBUG, "Failed to parse i3bar json - %s: '%s%c'",
|
|
json_tokener_error_desc(err), &status->buffer[buffer_pos], last_char);
|
|
status_error(status, "[failed to parse i3bar json]");
|
|
return true;
|
|
}
|
|
}
|
|
|
|
errno = 0;
|
|
ssize_t read_bytes = read(status->read_fd, &status->buffer[status->buffer_index],
|
|
status->buffer_size - status->buffer_index);
|
|
if (read_bytes > -1) {
|
|
status->buffer_index += read_bytes;
|
|
} else if (errno == EAGAIN) {
|
|
break;
|
|
} else {
|
|
status_error(status, "[error reading from status command]");
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (last_object) {
|
|
sway_log(SWAY_DEBUG, "Rendering last received json");
|
|
i3bar_parse_json(status, last_object);
|
|
json_object_put(last_object);
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
enum hotspot_event_handling i3bar_block_send_click(struct status_line *status,
|
|
struct i3bar_block *block, int x, int y, int rx, int ry, int w, int h,
|
|
uint32_t button) {
|
|
sway_log(SWAY_DEBUG, "block %s clicked", block->name);
|
|
if (!block->name || !status->click_events) {
|
|
return HOTSPOT_PROCESS;
|
|
}
|
|
|
|
struct json_object *event_json = json_object_new_object();
|
|
json_object_object_add(event_json, "name",
|
|
json_object_new_string(block->name));
|
|
if (block->instance) {
|
|
json_object_object_add(event_json, "instance",
|
|
json_object_new_string(block->instance));
|
|
}
|
|
|
|
json_object_object_add(event_json, "button",
|
|
json_object_new_int(event_to_x11_button(button)));
|
|
json_object_object_add(event_json, "event", json_object_new_int(button));
|
|
json_object_object_add(event_json, "x", json_object_new_int(x));
|
|
json_object_object_add(event_json, "y", json_object_new_int(y));
|
|
json_object_object_add(event_json, "relative_x", json_object_new_int(rx));
|
|
json_object_object_add(event_json, "relative_y", json_object_new_int(ry));
|
|
json_object_object_add(event_json, "width", json_object_new_int(w));
|
|
json_object_object_add(event_json, "height", json_object_new_int(h));
|
|
if (dprintf(status->write_fd, "%s%s\n", status->clicked ? "," : "",
|
|
json_object_to_json_string(event_json)) < 0) {
|
|
status_error(status, "[failed to write click event]");
|
|
}
|
|
status->clicked = true;
|
|
json_object_put(event_json);
|
|
return HOTSPOT_IGNORE;
|
|
}
|