+/*
+ * vim:ts=4:sw=4:expandtab
+ *
+ * i3bar - an xcb-based status- and ws-bar for i3
+ *
+ * © 2010-2011 Axel Wagner and contributors
+ *
+ * See file LICNSE for license information
+ *
+ * src/workspaces.c: Maintaining the workspace-lists
+ *
+ */
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
-
+#include <errno.h>
#include <yajl/yajl_parse.h>
+#include <yajl/yajl_version.h>
#include "common.h"
-#include "workspaces.h"
-#include "xcb.h"
-#include "ipc.h"
+/* A datatype to pass through the callbacks to save the state */
struct workspaces_json_params {
- i3_ws* workspaces;
- i3_ws* workspaces_walk;
- char* cur_key;
- char* json;
+ struct ws_head *workspaces;
+ i3_ws *workspaces_walk;
+ char *cur_key;
+ char *json;
};
-static int workspaces_null_cb(void* params_) {
- struct workspaces_json_params* params = (struct workspaces_json_params*) params_;
-
- if (strcmp(params->cur_key, "current_workspace")) {
- return 0;
- }
-
- FREE(params->cur_key);
-
- return 1;
+/*
+ * Parse a boolean value (visible, focused, urgent)
+ *
+ */
+static int workspaces_boolean_cb(void *params_, int val) {
+ struct workspaces_json_params *params = (struct workspaces_json_params*) params_;
+
+ if (!strcmp(params->cur_key, "visible")) {
+ params->workspaces_walk->visible = val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "focused")) {
+ params->workspaces_walk->focused = val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "urgent")) {
+ params->workspaces_walk->urgent = val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ FREE(params->cur_key);
+
+ return 0;
}
-static int workspaces_boolean_cb(void* params_, bool val) {
- struct workspaces_json_params* params = (struct workspaces_json_params*) params_;
-
- if (!strcmp(params->cur_key, "visible")) {
- params->workspaces_walk->visible = val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "focused")) {
- params->workspaces_walk->focused = val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "urgent")) {
- params->workspaces_walk->urgent = val;
- FREE(params->cur_key);
- return 1;
- }
-
- FREE(params->cur_key);
-
- return 0;
+/*
+ * Parse an integer (num or the rect)
+ *
+ */
+#if YAJL_MAJOR >= 2
+static int workspaces_integer_cb(void *params_, long long val) {
+#else
+static int workspaces_integer_cb(void *params_, long val) {
+#endif
+ struct workspaces_json_params *params = (struct workspaces_json_params*) params_;
+
+ if (!strcmp(params->cur_key, "num")) {
+ params->workspaces_walk->num = (int) val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "x")) {
+ params->workspaces_walk->rect.x = (int) val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "y")) {
+ params->workspaces_walk->rect.y = (int) val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "width")) {
+ params->workspaces_walk->rect.w = (int) val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ if (!strcmp(params->cur_key, "height")) {
+ params->workspaces_walk->rect.h = (int) val;
+ FREE(params->cur_key);
+ return 1;
+ }
+
+ FREE(params->cur_key);
+ return 0;
}
-static int workspaces_integer_cb(void* params_, long val) {
- struct workspaces_json_params* params = (struct workspaces_json_params*) params_;
-
- if (!strcmp(params->cur_key, "num")) {
- params->workspaces_walk->num = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "x")) {
- params->workspaces_walk->rect.x = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "y")) {
- params->workspaces_walk->rect.y = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "width")) {
- params->workspaces_walk->rect.w = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- if (!strcmp(params->cur_key, "height")) {
- params->workspaces_walk->rect.h = (int) val;
- FREE(params->cur_key);
- return 1;
- }
-
- FREE(params->cur_key);
- return 0;
-}
+/*
+ * Parse a string (name, output)
+ *
+ */
+#if YAJL_MAJOR >= 2
+static int workspaces_string_cb(void *params_, const unsigned char *val, size_t len) {
+#else
+static int workspaces_string_cb(void *params_, const unsigned char *val, unsigned int len) {
+#endif
+ struct workspaces_json_params *params = (struct workspaces_json_params*) params_;
-static int workspaces_string_cb(void* params_, const unsigned char* val, unsigned int len) {
-
- struct workspaces_json_params* params = (struct workspaces_json_params*) params_;
-
- char* output_name;
+ char *output_name;
if (!strcmp(params->cur_key, "name")) {
- params->workspaces_walk->name = malloc(sizeof(const unsigned char) * (len + 1));
- strncpy(params->workspaces_walk->name, (const char*) val, len);
- params->workspaces_walk->name[len] = '\0';
-
- params->workspaces_walk->name_width = get_string_width(params->workspaces_walk->name);
-
- printf("Got Workspace %s, name_width: %d\n",
- params->workspaces_walk->name,
- params->workspaces_walk->name_width);
- FREE(params->cur_key);
-
- return 1;
+ /* Save the name */
+ params->workspaces_walk->name = malloc(sizeof(const unsigned char) * (len + 1));
+ strncpy(params->workspaces_walk->name, (const char*) val, len);
+ params->workspaces_walk->name[len] = '\0';
+
+ /* Convert the name to ucs2, save its length in glyphs and calculate its rendered width */
+ int ucs2_len;
+ xcb_char2b_t *ucs2_name = (xcb_char2b_t*) convert_utf8_to_ucs2(params->workspaces_walk->name, &ucs2_len);
+ params->workspaces_walk->ucs2_name = ucs2_name;
+ params->workspaces_walk->name_glyphs = ucs2_len;
+ params->workspaces_walk->name_width =
+ predict_text_extents(params->workspaces_walk->ucs2_name,
+ params->workspaces_walk->name_glyphs);
+
+ DLOG("Got Workspace %s, name_width: %d, glyphs: %d\n",
+ params->workspaces_walk->name,
+ params->workspaces_walk->name_width,
+ params->workspaces_walk->name_glyphs);
+ FREE(params->cur_key);
+
+ return 1;
}
if (!strcmp(params->cur_key, "output")) {
- output_name = malloc(sizeof(const unsigned char) * (len + 1));
- strncpy(output_name, (const char*) val, len);
- output_name[len] = '\0';
- params->workspaces_walk->output = get_output_by_name(output_name);
- free(output_name);
-
- return 1;
+ /* We add the ws to the TAILQ of the output, it belongs to */
+ output_name = malloc(sizeof(const unsigned char) * (len + 1));
+ strncpy(output_name, (const char*) val, len);
+ output_name[len] = '\0';
+ params->workspaces_walk->output = get_output_by_name(output_name);
+
+ TAILQ_INSERT_TAIL(params->workspaces_walk->output->workspaces,
+ params->workspaces_walk,
+ tailq);
+
+ FREE(output_name);
+ return 1;
}
return 0;
}
-static int workspaces_start_map_cb(void* params_) {
- struct workspaces_json_params* params = (struct workspaces_json_params*) params_;
- i3_ws* new_workspace = NULL;
-
- if (params->cur_key == NULL) {
- new_workspace = malloc(sizeof(i3_ws));
- new_workspace->num = -1;
- new_workspace->name = NULL;
- new_workspace->visible = 0;
- new_workspace->focused = 0;
- new_workspace->urgent = 0;
- memset(&new_workspace->rect, 0, sizeof(rect));
- new_workspace->output = NULL;
- new_workspace->next = NULL;
-
- if (params->workspaces == NULL) {
- params->workspaces = new_workspace;
- } else {
- params->workspaces_walk->next = new_workspace;
- }
-
- params->workspaces_walk = new_workspace;
- return 1;
- }
-
- return 1;
+/*
+ * We hit the start of a json-map (rect or a new output)
+ *
+ */
+static int workspaces_start_map_cb(void *params_) {
+ struct workspaces_json_params *params = (struct workspaces_json_params*) params_;
+
+ i3_ws *new_workspace = NULL;
+
+ if (params->cur_key == NULL) {
+ new_workspace = malloc(sizeof(i3_ws));
+ new_workspace->num = -1;
+ new_workspace->name = NULL;
+ new_workspace->visible = 0;
+ new_workspace->focused = 0;
+ new_workspace->urgent = 0;
+ memset(&new_workspace->rect, 0, sizeof(rect));
+ new_workspace->output = NULL;
+
+ params->workspaces_walk = new_workspace;
+ return 1;
+ }
+
+ return 1;
}
-static int workspaces_map_key_cb(void* params_, const unsigned char* keyVal, unsigned int keyLen) {
- struct workspaces_json_params* params = (struct workspaces_json_params*) params_;
- FREE(params->cur_key);
-
- params->cur_key = malloc(sizeof(unsigned char) * (keyLen + 1));
- if (params->cur_key == NULL) {
- printf("ERROR: Could not allocate memory!\n");
- exit(EXIT_FAILURE);
- }
- strncpy(params->cur_key, (const char*) keyVal, keyLen);
- params->cur_key[keyLen] = '\0';
-
- return 1;
+/*
+ * Parse a key.
+ *
+ * Essentially we just save it in the parsing-state
+ *
+ */
+#if YAJL_MAJOR >= 2
+static int workspaces_map_key_cb(void *params_, const unsigned char *keyVal, size_t keyLen) {
+#else
+static int workspaces_map_key_cb(void *params_, const unsigned char *keyVal, unsigned int keyLen) {
+#endif
+ struct workspaces_json_params *params = (struct workspaces_json_params*) params_;
+ FREE(params->cur_key);
+
+ params->cur_key = malloc(sizeof(unsigned char) * (keyLen + 1));
+ if (params->cur_key == NULL) {
+ ELOG("Could not allocate memory: %s\n", strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ strncpy(params->cur_key, (const char*) keyVal, keyLen);
+ params->cur_key[keyLen] = '\0';
+
+ return 1;
}
+/* A datastructure to pass all these callbacks to yajl */
yajl_callbacks workspaces_callbacks = {
- &workspaces_null_cb,
- &workspaces_boolean_cb,
- &workspaces_integer_cb,
- NULL,
- NULL,
- &workspaces_string_cb,
- &workspaces_start_map_cb,
- &workspaces_map_key_cb,
- NULL,
- NULL,
- NULL
+ NULL,
+ &workspaces_boolean_cb,
+ &workspaces_integer_cb,
+ NULL,
+ NULL,
+ &workspaces_string_cb,
+ &workspaces_start_map_cb,
+ &workspaces_map_key_cb,
+ NULL,
+ NULL,
+ NULL
};
-void parse_workspaces_json(char* json) {
- /* FIXME: Fasciliate stream-processing, i.e. allow starting to interpret
- * JSON in chunks */
- struct workspaces_json_params params;
- params.workspaces = NULL;
- params.workspaces_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(&workspaces_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 workspaces-reply!\n");
- exit(EXIT_FAILURE);
- break;
- }
-
- yajl_free(handle);
-
- free_workspaces();
- workspaces = params.workspaces;
-
- FREE(params.cur_key);
+/*
+ * Start parsing the received json-string
+ *
+ */
+void parse_workspaces_json(char *json) {
+ /* FIXME: Fasciliate stream-processing, i.e. allow starting to interpret
+ * JSON in chunks */
+ struct workspaces_json_params params;
+
+ free_workspaces();
+
+ params.workspaces_walk = NULL;
+ params.cur_key = NULL;
+ params.json = json;
+
+ yajl_handle handle;
+ yajl_status state;
+#if YAJL_MAJOR < 2
+ yajl_parser_config parse_conf = { 0, 0 };
+
+ handle = yajl_alloc(&workspaces_callbacks, &parse_conf, NULL, (void*) ¶ms);
+#else
+ handle = yajl_alloc(&workspaces_callbacks, NULL, (void*) ¶ms);
+#endif
+
+ 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:
+#if YAJL_MAJOR < 2
+ case yajl_status_insufficient_data:
+#endif
+ case yajl_status_error:
+ ELOG("Could not parse workspaces-reply!\n");
+ exit(EXIT_FAILURE);
+ break;
+ }
+
+ yajl_free(handle);
+
+ FREE(params.cur_key);
}
+/*
+ * free() all workspace data-structures. Does not free() the heads of the tailqueues.
+ *
+ */
void free_workspaces() {
- i3_ws* tmp;
- while (workspaces != NULL) {
- tmp = workspaces;
- workspaces = workspaces->next;
- FREE(tmp->name);
- FREE(tmp);
- }
+ i3_output *outputs_walk;
+ if (outputs == NULL) {
+ return;
+ }
+ i3_ws *ws_walk;
+
+ SLIST_FOREACH(outputs_walk, outputs, slist) {
+ if (outputs_walk->workspaces != NULL && !TAILQ_EMPTY(outputs_walk->workspaces)) {
+ TAILQ_FOREACH(ws_walk, outputs_walk->workspaces, tailq) {
+ FREE(ws_walk->name);
+ FREE(ws_walk->ucs2_name);
+ }
+ FREE_TAILQ(outputs_walk->workspaces, i3_ws);
+ }
+ }
}
projects / i3 / i3 / blobdiff