+/*
+ * vim:ts=4:sw=4:expandtab
+ *
+ * i3bar - an xcb-based status- and ws-bar for i3
+ * © 2010 Axel Wagner and contributors (see also: LICENSE)
+ *
+ * outputs.c: Maintaining the outputs list
+ *
+ */
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
+#include <errno.h>
#include <i3/ipc.h>
-
#include <yajl/yajl_parse.h>
+#include <yajl/yajl_version.h>
#include "common.h"
-#include "outputs.h"
-#include "ipc.h"
+/* A datatype to pass through the callbacks to save the state */
struct outputs_json_params {
- i3_output* outputs;
- i3_output* outputs_walk;
- char* cur_key;
- char* json;
+ struct outputs_head *outputs;
+ i3_output *outputs_walk;
+ char *cur_key;
+ char *json;
+ bool in_rect;
};
-static int outputs_null_cb(void* params_) {
- struct outputs_json_params* params = (struct outputs_json_params*) params_;
-
- if (strcmp(params->cur_key, "current_workspace")) {
- return 0;
- }
+/*
+ * Parse a null value (current_workspace)
+ *
+ */
+static int outputs_null_cb(void *params_) {
+ struct outputs_json_params *params = (struct outputs_json_params *)params_;
- FREE(params->cur_key);
+ FREE(params->cur_key);
- return 1;
+ return 1;
}
-static int outputs_boolean_cb(void* params_, bool val) {
- struct outputs_json_params* params = (struct outputs_json_params*) params_;
-
- if (strcmp(params->cur_key, "active")) {
- return 0;
- }
-
- params->outputs_walk->active = val;
-
- FREE(params->cur_key);
-
- return 1;
+/*
+ * Parse a boolean value (active)
+ *
+ */
+static int outputs_boolean_cb(void *params_, int val) {
+ struct outputs_json_params *params = (struct outputs_json_params *)params_;
+
+ if (!strcmp(params->cur_key, "active")) {
+ params->outputs_walk->active = val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "primary")) {
+ params->outputs_walk->primary = val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ return 0;
}
-static int outputs_integer_cb(void* params_, long val) {
- struct outputs_json_params* params = (struct outputs_json_params*) params_;
-
- if (!strcmp(params->cur_key, "current_workspace")) {
- params->outputs_walk->ws = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "x")) {
- params->outputs_walk->rect.x = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "y")) {
- params->outputs_walk->rect.y = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "width")) {
- params->outputs_walk->rect.w = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "height")) {
- params->outputs_walk->rect.h = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- return 0;
+/*
+ * Parse an integer (current_workspace or the rect)
+ *
+ */
+static int outputs_integer_cb(void *params_, long long val) {
+ struct outputs_json_params *params = (struct outputs_json_params *)params_;
+
+ if (!strcmp(params->cur_key, "current_workspace")) {
+ params->outputs_walk->ws = (int)val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "x")) {
+ params->outputs_walk->rect.x = (int)val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "y")) {
+ params->outputs_walk->rect.y = (int)val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "width")) {
+ params->outputs_walk->rect.w = (int)val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "height")) {
+ params->outputs_walk->rect.h = (int)val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ return 0;
}
-static int outputs_string_cb(void* params_, const unsigned char* val, unsigned int len) {
- struct outputs_json_params* params = (struct outputs_json_params*) params_;
-
- if (strcmp(params->cur_key, "name")) {
- return 0;
- }
-
- params->outputs_walk->name = malloc(sizeof(const unsigned char) * (len + 1));
- strncpy(params->outputs_walk->name, (const char*) val, len);
- params->outputs_walk->name[len] = '\0';
-
- FREE(params->cur_key);
-
- return 1;
+/*
+ * Parse a string (name)
+ *
+ */
+static int outputs_string_cb(void *params_, const unsigned char *val, size_t len) {
+ struct outputs_json_params *params = (struct outputs_json_params *)params_;
+
+ if (!strcmp(params->cur_key, "current_workspace")) {
+ char *copy = NULL;
+ sasprintf(©, "%.*s", len, val);
+
+ char *end;
+ errno = 0;
+ long parsed_num = strtol(copy, &end, 10);
+ if (errno == 0 &&
+ (end && *end == '\0'))
+ params->outputs_walk->ws = parsed_num;
+
+ FREE(copy);
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (strcmp(params->cur_key, "name")) {
+ return 0;
+ }
+
+ sasprintf(&(params->outputs_walk->name), "%.*s", len, val);
+
+ FREE(params->cur_key);
+ return 1;
}
-static int outputs_start_map_cb(void* params_) {
- struct outputs_json_params* params = (struct outputs_json_params*) params_;
- i3_output* new_output = NULL;
-
- if (params->cur_key == NULL) {
- new_output = malloc(sizeof(i3_output));
- new_output->name = NULL;
- new_output->ws = 0,
- memset(&new_output->rect, 0, sizeof(rect));
- new_output->next = NULL;
-
- if (params->outputs == NULL) {
- params->outputs = new_output;
- } else {
- params->outputs_walk->next = new_output;
- }
-
- params->outputs_walk = new_output;
- return 1;
- }
-
- return 1;
+/*
+ * We hit the start of a JSON map (rect or a new output)
+ *
+ */
+static int outputs_start_map_cb(void *params_) {
+ struct outputs_json_params *params = (struct outputs_json_params *)params_;
+ i3_output *new_output = NULL;
+
+ if (params->cur_key == NULL) {
+ new_output = smalloc(sizeof(i3_output));
+ new_output->name = NULL;
+ new_output->active = false;
+ new_output->primary = false;
+ new_output->visible = false;
+ new_output->ws = 0,
+ new_output->statusline_width = 0;
+ new_output->statusline_short_text = false;
+ memset(&new_output->rect, 0, sizeof(rect));
+ memset(&new_output->bar, 0, sizeof(surface_t));
+ memset(&new_output->buffer, 0, sizeof(surface_t));
+ memset(&new_output->statusline_buffer, 0, sizeof(surface_t));
+
+ new_output->workspaces = smalloc(sizeof(struct ws_head));
+ TAILQ_INIT(new_output->workspaces);
+
+ new_output->trayclients = smalloc(sizeof(struct tc_head));
+ TAILQ_INIT(new_output->trayclients);
+
+ params->outputs_walk = new_output;
+
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "rect")) {
+ params->in_rect = true;
+ }
+
+ return 1;
}
-static int outputs_map_key_cb(void* params_, const unsigned char* keyVal, unsigned int keyLen) {
- struct outputs_json_params* params = (struct outputs_json_params*) params_;
- FREE(params->cur_key);
-
- params->cur_key = malloc(sizeof(unsigned char) * (keyLen + 1));
- strncpy(params->cur_key, (const char*) keyVal, keyLen);
- params->cur_key[keyLen] = '\0';
+/*
+ * We hit the end of a map (rect or a new output)
+ *
+ */
+static int outputs_end_map_cb(void *params_) {
+ struct outputs_json_params *params = (struct outputs_json_params *)params_;
+ if (params->in_rect) {
+ params->in_rect = false;
+ /* Ignore the end of a rect */
+ return 1;
+ }
+
+ /* See if we actually handle that output */
+ if (config.num_outputs > 0) {
+ bool handle_output = false;
+ for (int c = 0; c < config.num_outputs; c++) {
+ if (strcasecmp(params->outputs_walk->name, config.outputs[c]) != 0)
+ continue;
+
+ handle_output = true;
+ break;
+ }
+ if (!handle_output) {
+ DLOG("Ignoring output \"%s\", not configured to handle it.\n",
+ params->outputs_walk->name);
+ FREE(params->outputs_walk->name);
+ FREE(params->outputs_walk->workspaces);
+ FREE(params->outputs_walk->trayclients);
+ FREE(params->outputs_walk);
+ FREE(params->cur_key);
+ return 1;
+ }
+ }
+
+ i3_output *target = get_output_by_name(params->outputs_walk->name);
+
+ if (target == NULL) {
+ SLIST_INSERT_HEAD(outputs, params->outputs_walk, slist);
+ } else {
+ target->active = params->outputs_walk->active;
+ target->primary = params->outputs_walk->primary;
+ target->ws = params->outputs_walk->ws;
+ target->rect = params->outputs_walk->rect;
+ }
+ return 1;
+}
- return 1;
+/*
+ * Parse a key.
+ *
+ * Essentially we just save it in the parsing state
+ *
+ */
+static int outputs_map_key_cb(void *params_, const unsigned char *keyVal, size_t keyLen) {
+ struct outputs_json_params *params = (struct outputs_json_params *)params_;
+ FREE(params->cur_key);
+ sasprintf(&(params->cur_key), "%.*s", keyLen, keyVal);
+ return 1;
}
-yajl_callbacks outputs_callbacks = {
- &outputs_null_cb,
- &outputs_boolean_cb,
- &outputs_integer_cb,
- NULL,
- NULL,
- &outputs_string_cb,
- &outputs_start_map_cb,
- &outputs_map_key_cb,
- NULL,
- NULL,
- NULL
+/* A datastructure to pass all these callbacks to yajl */
+static yajl_callbacks outputs_callbacks = {
+ .yajl_null = outputs_null_cb,
+ .yajl_boolean = outputs_boolean_cb,
+ .yajl_integer = outputs_integer_cb,
+ .yajl_string = outputs_string_cb,
+ .yajl_start_map = outputs_start_map_cb,
+ .yajl_map_key = outputs_map_key_cb,
+ .yajl_end_map = outputs_end_map_cb,
};
-void parse_outputs_json(char* json) {
- /* FIXME: Fasciliate stream-processing, i.e. allow starting to interpret
- * JSON in chunks */
- struct outputs_json_params params;
- params.outputs = NULL;
- params.outputs_walk = NULL;
- params.cur_key = NULL;
- params.json = json;
-
- yajl_handle handle;
- yajl_parser_config parse_conf = { 0, 0 };
- yajl_status state;
-
- handle = yajl_alloc(&outputs_callbacks, &parse_conf, NULL, (void*) ¶ms);
-
- state = yajl_parse(handle, (const unsigned char*) json, strlen(json));
-
- /* FIXME: Propper errorhandling for JSON-parsing */
- switch (state) {
- case yajl_status_ok:
- break;
- case yajl_status_client_canceled:
- case yajl_status_insufficient_data:
- case yajl_status_error:
- printf("ERROR: Could not parse outputs-reply!\n");
- exit(EXIT_FAILURE);
- break;
- }
-
- yajl_free(handle);
-
- free_outputs();
- outputs = params.outputs;
+/*
+ * Initiate the outputs list
+ *
+ */
+void init_outputs(void) {
+ outputs = smalloc(sizeof(struct outputs_head));
+ SLIST_INIT(outputs);
}
-void free_outputs() {
- i3_output* tmp;
- while (outputs != NULL) {
- tmp = outputs;
- outputs = outputs->next;
- FREE(tmp->name);
- FREE(tmp);
- }
+/*
+ * Start parsing the received JSON string
+ *
+ */
+void parse_outputs_json(char *json) {
+ struct outputs_json_params params;
+
+ params.outputs_walk = NULL;
+ params.cur_key = NULL;
+ params.json = json;
+ params.in_rect = false;
+
+ yajl_handle handle;
+ yajl_status state;
+ handle = yajl_alloc(&outputs_callbacks, NULL, (void *)¶ms);
+
+ state = yajl_parse(handle, (const unsigned char *)json, strlen(json));
+
+ /* FIXME: Propper errorhandling for JSON-parsing */
+ switch (state) {
+ case yajl_status_ok:
+ break;
+ case yajl_status_client_canceled:
+ case yajl_status_error:
+ ELOG("Could not parse outputs reply!\n");
+ exit(EXIT_FAILURE);
+ break;
+ }
+
+ yajl_free(handle);
}
-i3_output* get_output_by_name(char* name) {
- if (outputs == NULL) {
- i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_OUTPUTS, NULL);
- return NULL;
- }
-
- i3_output* walk;
-
- for (walk = outputs; walk != NULL; walk = walk->next) {
- if (strcmp(walk->name, name)) {
- break;
- }
- }
+/*
+ * Returns the output with the given name
+ *
+ */
+i3_output *get_output_by_name(char *name) {
+ i3_output *walk;
+ if (name == NULL) {
+ return NULL;
+ }
+ SLIST_FOREACH(walk, outputs, slist) {
+ if (!strcmp(walk->name, name)) {
+ break;
+ }
+ }
+
+ return walk;
+}
- return walk;
+/*
+ * Returns true if the output has the currently focused workspace
+ *
+ */
+bool output_has_focus(i3_output *output) {
+ i3_ws *ws_walk;
+ TAILQ_FOREACH(ws_walk, output->workspaces, tailq) {
+ if (ws_walk->focused) {
+ return true;
+ }
+ }
+ return false;
}
projects / i3 / i3 / blobdiff