* util.c: Utility functions, which can be useful everywhere.
*
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
#include <sys/wait.h>
#include <stdarg.h>
-#include <assert.h>
#include <iconv.h>
+#if defined(__OpenBSD__)
+#include <sys/cdefs.h>
+#endif
-#include <xcb/xcb_icccm.h>
+#include <fcntl.h>
-#include "i3.h"
-#include "data.h"
-#include "table.h"
-#include "layout.h"
-#include "util.h"
-#include "xcb.h"
-#include "client.h"
+#include "all.h"
static iconv_t conversion_descriptor = 0;
-struct keyvalue_table_head by_parent = TAILQ_HEAD_INITIALIZER(by_parent);
-struct keyvalue_table_head by_child = TAILQ_HEAD_INITIALIZER(by_child);
int min(int a, int b) {
return (a < b ? a : b);
return (a > b ? a : b);
}
+bool rect_contains(Rect rect, uint32_t x, uint32_t y) {
+ return (x >= rect.x &&
+ x <= (rect.x + rect.width) &&
+ y >= rect.y &&
+ y <= (rect.y + rect.height));
+}
+
/*
- * Logs the given message to stdout while prefixing the current time to it.
- * This is to be called by LOG() which includes filename/linenumber
+ * Updates *destination with new_value and returns true if it was changed or false
+ * if it was the same
*
*/
-void slog(char *fmt, ...) {
- va_list args;
- char timebuf[64];
-
- va_start(args, fmt);
- /* Get current time */
- time_t t = time(NULL);
- /* Convert time to local time (determined by the locale) */
- struct tm *tmp = localtime(&t);
- /* Generate time prefix */
- strftime(timebuf, sizeof(timebuf), "%x %X - ", tmp);
- printf("%s", timebuf);
- vprintf(fmt, args);
- va_end(args);
+bool update_if_necessary(uint32_t *destination, const uint32_t new_value) {
+ uint32_t old_value = *destination;
+
+ return ((*destination = new_value) != old_value);
}
/*
return result;
}
+void *srealloc(void *ptr, size_t size) {
+ void *result = realloc(ptr, size);
+ exit_if_null(result, "Error: out memory (realloc(%zd))\n", size);
+ return result;
+}
+
char *sstrdup(const char *str) {
char *result = strdup(str);
exit_if_null(result, "Error: out of memory (strdup())\n");
return result;
}
-/*
- * The table_* functions emulate the behaviour of libxcb-wm, which in libxcb 0.3.4 suddenly
- * vanished. Great.
- *
- */
-bool table_put(struct keyvalue_table_head *head, uint32_t key, void *value) {
- struct keyvalue_element *element = scalloc(sizeof(struct keyvalue_element));
- element->key = key;
- element->value = value;
-
- TAILQ_INSERT_TAIL(head, element, elements);
- return true;
-}
-
-void *table_remove(struct keyvalue_table_head *head, uint32_t key) {
- struct keyvalue_element *element;
-
- TAILQ_FOREACH(element, head, elements)
- if (element->key == key) {
- void *value = element->value;
- TAILQ_REMOVE(head, element, elements);
- free(element);
- return value;
- }
-
- return NULL;
-}
-
-void *table_get(struct keyvalue_table_head *head, uint32_t key) {
- struct keyvalue_element *element;
-
- TAILQ_FOREACH(element, head, elements)
- if (element->key == key)
- return element->value;
-
- return NULL;
-}
-
/*
* Starts the given application by passing it through a shell. We use double fork
* to avoid zombie processes. As the started application’s parent exits (immediately),
*
*/
void start_application(const char *command) {
+ LOG("executing: %s\n", command);
if (fork() == 0) {
/* Child process */
if (fork() == 0) {
shell = "/bin/sh";
/* This is the child */
- execl(shell, shell, "-c", command, NULL);
+ execl(shell, shell, "-c", command, (void*)NULL);
/* not reached */
}
exit(0);
void check_error(xcb_connection_t *conn, xcb_void_cookie_t cookie, char *err_message) {
xcb_generic_error_t *error = xcb_request_check(conn, cookie);
if (error != NULL) {
- fprintf(stderr, "ERROR: %s : %d\n", err_message , error->error_code);
+ fprintf(stderr, "ERROR: %s (X error %d)\n", err_message , error->error_code);
xcb_disconnect(conn);
exit(-1);
}
*
*/
char *convert_utf8_to_ucs2(char *input, int *real_strlen) {
- size_t input_size = strlen(input) + 1;
- /* UCS-2 consumes exactly two bytes for each glyph */
- int buffer_size = input_size * 2;
+ size_t input_size = strlen(input) + 1;
+ /* UCS-2 consumes exactly two bytes for each glyph */
+ int buffer_size = input_size * 2;
- char *buffer = smalloc(buffer_size);
- size_t output_size = buffer_size;
- /* We need to use an additional pointer, because iconv() modifies it */
- char *output = buffer;
+ char *buffer = smalloc(buffer_size);
+ size_t output_size = buffer_size;
+ /* We need to use an additional pointer, because iconv() modifies it */
+ char *output = buffer;
- /* We convert the input into UCS-2 big endian */
+ /* We convert the input into UCS-2 big endian */
if (conversion_descriptor == 0) {
conversion_descriptor = iconv_open("UCS-2BE", "UTF-8");
if (conversion_descriptor == 0) {
}
}
- /* Get the conversion descriptor back to original state */
- iconv(conversion_descriptor, NULL, NULL, NULL, NULL);
+ /* Get the conversion descriptor back to original state */
+ iconv(conversion_descriptor, NULL, NULL, NULL, NULL);
- /* Convert our text */
- int rc = iconv(conversion_descriptor, (void*)&input, &input_size, &output, &output_size);
+ /* Convert our text */
+ int rc = iconv(conversion_descriptor, (void*)&input, &input_size, &output, &output_size);
if (rc == (size_t)-1) {
perror("Converting to UCS-2 failed");
if (real_strlen != NULL)
- *real_strlen = 0;
+ *real_strlen = 0;
return NULL;
- }
+ }
if (real_strlen != NULL)
- *real_strlen = ((buffer_size - output_size) / 2) - 1;
+ *real_strlen = ((buffer_size - output_size) / 2) - 1;
- return buffer;
+ return buffer;
}
+#if 0
/*
* Returns the client which comes next in focus stack (= was selected before) for
return NULL;
}
-/*
- * Unmaps all clients (and stack windows) of the given workspace.
- *
- * This needs to be called separately when temporarily rendering
- * a workspace which is not the active workspace to force
- * reconfiguration of all clients, like in src/xinerama.c when
- * re-assigning a workspace to another screen.
- *
- */
-void unmap_workspace(xcb_connection_t *conn, Workspace *u_ws) {
- Client *client;
- struct Stack_Window *stack_win;
-
- /* Ignore notify events because they would cause focus to be changed */
- ignore_enter_notify_forall(conn, u_ws, true);
-
- /* Unmap all clients of the given workspace */
- int unmapped_clients = 0;
- FOR_TABLE(u_ws)
- CIRCLEQ_FOREACH(client, &(u_ws->table[cols][rows]->clients), clients) {
- LOG("unmapping normal client %p / %p / %p\n", client, client->frame, client->child);
- xcb_unmap_window(conn, client->frame);
- unmapped_clients++;
- }
-
- /* To find floating clients, we traverse the focus stack */
- SLIST_FOREACH(client, &(u_ws->focus_stack), focus_clients) {
- if (!client_is_floating(client))
- continue;
-
- LOG("unmapping floating client %p / %p / %p\n", client, client->frame, client->child);
-
- xcb_unmap_window(conn, client->frame);
- unmapped_clients++;
- }
-
- /* If we did not unmap any clients, the workspace is empty and we can destroy it, at least
- * if it is not the current workspace. */
- if (unmapped_clients == 0 && u_ws != c_ws) {
- /* Re-assign the workspace of all dock clients which use this workspace */
- Client *dock;
- LOG("workspace %p is empty\n", u_ws);
- SLIST_FOREACH(dock, &(u_ws->screen->dock_clients), dock_clients) {
- if (dock->workspace != u_ws)
- continue;
-
- LOG("Re-assigning dock client to c_ws (%p)\n", c_ws);
- dock->workspace = c_ws;
- }
- u_ws->screen = NULL;
- }
-
- /* Unmap the stack windows on the given workspace, if any */
- SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
- if (stack_win->container->workspace == u_ws)
- xcb_unmap_window(conn, stack_win->window);
-
- ignore_enter_notify_forall(conn, u_ws, false);
-}
/*
* Sets the given client as focused by updating the data structures correctly,
Client *old_client = SLIST_FIRST(&(c_ws->focus_stack));
/* Check if the focus needs to be changed at all */
- if (!set_anyways && (old_client == client)) {
- LOG("old_client == client, not changing focus\n");
+ if (!set_anyways && (old_client == client))
return;
- }
/* Store current_row/current_col */
c_ws->current_row = current_row;
c_ws->current_col = current_col;
c_ws = client->workspace;
+ ewmh_update_current_desktop();
/* Load current_col/current_row if we switch to a client without a container */
current_col = c_ws->current_col;
current_row = c_ws->current_row;
current_row = client->container->row;
}
- LOG("set_focus(frame %08x, child %08x, name %s)\n", client->frame, client->child, client->name);
+ CLIENT_LOG(client);
/* Set focus to the entered window, and flush xcb buffer immediately */
xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, client->child, XCB_CURRENT_TIME);
+ ewmh_update_active_window(client->child);
//xcb_warp_pointer(conn, XCB_NONE, client->child, 0, 0, 0, 0, 10, 10);
if (client->container != NULL) {
Client *last_focused = get_last_focused_client(conn, client->container, NULL);
/* In stacking containers, raise the client in respect to the one which was focused before */
- if (client->container->mode == MODE_STACK && client->container->workspace->fullscreen_client == NULL) {
+ if ((client->container->mode == MODE_STACK || client->container->mode == MODE_TABBED) &&
+ client->container->workspace->fullscreen_client == NULL) {
/* We need to get the client again, this time excluding the current client, because
* we might have just gone into stacking mode and need to raise */
Client *last_focused = get_last_focused_client(conn, client->container, client);
if (last_focused != NULL) {
- LOG("raising above frame %p / child %p\n", last_focused->frame, last_focused->child);
+ DLOG("raising above frame %p / child %p\n", last_focused->frame, last_focused->child);
uint32_t values[] = { last_focused->frame, XCB_STACK_MODE_ABOVE };
xcb_configure_window(conn, client->frame, XCB_CONFIG_WINDOW_SIBLING | XCB_CONFIG_WINDOW_STACK_MODE, values);
}
/* If the last client was a floating client, we need to go to the next
* tiling client in stack and re-decorate it. */
if (old_client != NULL && client_is_floating(old_client)) {
- LOG("Coming from floating client, searching next tiling...\n");
+ DLOG("Coming from floating client, searching next tiling...\n");
Client *current;
SLIST_FOREACH(current, &(client->workspace->focus_stack), focus_clients) {
if (client_is_floating(current))
continue;
- LOG("Found window: %p / child %p\n", current->frame, current->child);
+ DLOG("Found window: %p / child %p\n", current->frame, current->child);
redecorate_window(conn, current);
break;
}
-
}
SLIST_REMOVE(&(client->workspace->focus_stack), client, Client, focus_clients);
SLIST_INSERT_HEAD(&(client->workspace->focus_stack), client, focus_clients);
+ /* Clear the urgency flag if set (necessary when i3 sets the flag, for
+ * example when automatically putting windows on the workspace of their
+ * leader) */
+ client->urgent = false;
+ workspace_update_urgent_flag(client->workspace);
+
/* If we’re in stacking mode, this renders the container to update changes in the title
bars and to raise the focused client */
if ((old_client != NULL) && (old_client != client) && !old_client->dock)
*
*/
void switch_layout_mode(xcb_connection_t *conn, Container *container, int mode) {
- if (mode == MODE_STACK) {
+ if (mode == MODE_STACK || mode == MODE_TABBED) {
/* When we’re already in stacking mode, nothing has to be done */
- if (container->mode == MODE_STACK)
+ if ((mode == MODE_STACK && container->mode == MODE_STACK) ||
+ (mode == MODE_TABBED && container->mode == MODE_TABBED))
return;
- /* When entering stacking mode, we need to open a window on which we can draw the
- title bars of the clients, it has height 1 because we don’t bother here with
- calculating the correct height - it will be adjusted when rendering anyways. */
- Rect rect = {container->x, container->y, container->width, 1};
+ if (container->mode == MODE_STACK || container->mode == MODE_TABBED)
+ goto after_stackwin;
+
+ /* When entering stacking mode, we need to open a window on
+ * which we can draw the title bars of the clients, it has
+ * height 1 because we don’t bother here with calculating the
+ * correct height - it will be adjusted when rendering anyways.
+ * Also, we need to use max(width, 1) because windows cannot
+ * be created with either width == 0 or height == 0. */
+ Rect rect = {container->x, container->y, max(container->width, 1), 1};
uint32_t mask = 0;
uint32_t values[2];
XCB_EVENT_MASK_EXPOSURE; /* …our window needs to be redrawn */
struct Stack_Window *stack_win = &(container->stack_win);
- stack_win->window = create_window(conn, rect, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCB_CURSOR_LEFT_PTR, true, mask, values);
+ stack_win->window = create_window(conn, rect, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCB_CURSOR_LEFT_PTR, false, mask, values);
+
+ stack_win->rect.height = 0;
/* Initialize the entry for our cached pixmap. It will be
* created as soon as it’s needed (see cached_pixmap_prepare). */
SLIST_INSERT_HEAD(&stack_wins, stack_win, stack_windows);
} else {
- if (container->mode == MODE_STACK)
+ if (container->mode == MODE_STACK || container->mode == MODE_TABBED)
leave_stack_mode(conn, container);
}
+after_stackwin:
container->mode = mode;
/* Force reconfiguration of each client */
if (client == container->currently_focused || client == last_focused)
continue;
- LOG("setting %08x below %08x / %08x\n", client->frame, container->currently_focused->frame);
+ DLOG("setting %08x below %08x / %08x\n", client->frame, container->currently_focused->frame);
uint32_t values[] = { container->currently_focused->frame, XCB_STACK_MODE_BELOW };
xcb_configure_window(conn, client->frame,
XCB_CONFIG_WINDOW_SIBLING | XCB_CONFIG_WINDOW_STACK_MODE, values);
}
if (last_focused != NULL) {
- LOG("Putting last_focused directly underneath the currently focused\n");
+ DLOG("Putting last_focused directly underneath the currently focused\n");
uint32_t values[] = { container->currently_focused->frame, XCB_STACK_MODE_BELOW };
xcb_configure_window(conn, last_focused->frame,
XCB_CONFIG_WINDOW_SIBLING | XCB_CONFIG_WINDOW_STACK_MODE, values);
goto done;
}
- LOG("Getting clients for class \"%s\" / title \"%s\"\n", to_class, to_title);
- for (int workspace = 0; workspace < 10; workspace++) {
- if (workspaces[workspace].screen == NULL)
+ DLOG("Getting clients for class \"%s\" / title \"%s\"\n", to_class, to_title);
+ Workspace *ws;
+ TAILQ_FOREACH(ws, workspaces, workspaces) {
+ if (ws->output == NULL)
continue;
Client *client;
- SLIST_FOREACH(client, &(workspaces[workspace].focus_stack), focus_clients) {
- LOG("Checking client with class=%s, name=%s\n", client->window_class, client->name);
+ SLIST_FOREACH(client, &(ws->focus_stack), focus_clients) {
+ DLOG("Checking client with class=%s / %s, name=%s\n", client->window_class_instance,
+ client->window_class_class, client->name);
if (!client_matches_class_name(client, to_class, to_title, to_title_ucs, to_title_ucs_len))
continue;
FREE(to_title_ucs);
return matching;
}
+#endif
+
+/*
+ * Goes through the list of arguments (for exec()) and checks if the given argument
+ * is present. If not, it copies the arguments (because we cannot realloc it) and
+ * appends the given argument.
+ *
+ */
+static char **append_argument(char **original, char *argument) {
+ int num_args;
+ for (num_args = 0; original[num_args] != NULL; num_args++) {
+ DLOG("original argument: \"%s\"\n", original[num_args]);
+ /* If the argument is already present we return the original pointer */
+ if (strcmp(original[num_args], argument) == 0)
+ return original;
+ }
+ /* Copy the original array */
+ char **result = smalloc((num_args+2) * sizeof(char*));
+ memcpy(result, original, num_args * sizeof(char*));
+ result[num_args] = argument;
+ result[num_args+1] = NULL;
+
+ return result;
+}
+
+#define y(x, ...) yajl_gen_ ## x (gen, ##__VA_ARGS__)
+#define ystr(str) yajl_gen_string(gen, (unsigned char*)str, strlen(str))
+
+void store_restart_layout() {
+ yajl_gen gen = yajl_gen_alloc(NULL, NULL);
+
+ dump_node(gen, croot, true);
+
+ const unsigned char *payload;
+ unsigned int length;
+ y(get_buf, &payload, &length);
+
+ char *globbed = glob_path("~/.i3/_restart.json");
+ int fd = open(globbed, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
+ free(globbed);
+ if (fd == -1) {
+ perror("open()");
+ return;
+ }
+
+ int written = 0;
+ while (written < length) {
+ int n = write(fd, payload + written, length - written);
+ /* TODO: correct error-handling */
+ if (n == -1) {
+ perror("write()");
+ return;
+ }
+ if (n == 0) {
+ printf("write == 0?\n");
+ return;
+ }
+ written += n;
+ printf("written: %d of %d\n", written, length);
+ }
+ close(fd);
+
+ printf("layout: %.*s\n", length, payload);
+
+ y(free);
+}
+
+/*
+ * Restart i3 in-place
+ * appends -a to argument list to disable autostart
+ *
+ */
+void i3_restart() {
+ store_restart_layout();
+ restore_geometry();
+
+ //ipc_shutdown();
+
+ LOG("restarting \"%s\"...\n", start_argv[0]);
+ /* make sure -a is in the argument list or append it */
+ start_argv = append_argument(start_argv, "-a");
+
+ execvp(start_argv[0], start_argv);
+ /* not reached */
+}
+
+#if 0
+
+#if defined(__OpenBSD__)
+
+/*
+ * Taken from FreeBSD
+ * Find the first occurrence of the byte string s in byte string l.
+ *
+ */
+void *memmem(const void *l, size_t l_len, const void *s, size_t s_len) {
+ register char *cur, *last;
+ const char *cl = (const char *)l;
+ const char *cs = (const char *)s;
+
+ /* we need something to compare */
+ if (l_len == 0 || s_len == 0)
+ return NULL;
+
+ /* "s" must be smaller or equal to "l" */
+ if (l_len < s_len)
+ return NULL;
+
+ /* special case where s_len == 1 */
+ if (s_len == 1)
+ return memchr(l, (int)*cs, l_len);
+
+ /* the last position where its possible to find "s" in "l" */
+ last = (char *)cl + l_len - s_len;
+
+ for (cur = (char *)cl; cur <= last; cur++)
+ if (cur[0] == cs[0] && memcmp(cur, cs, s_len) == 0)
+ return cur;
+
+ return NULL;
+}
+
+#endif
+#endif
projects / i3 / i3 / blobdiff