+++ /dev/null
-/*
- * $Header$
- *
- * Timed menu plugin
- * Provides a menu from either a periodically executing process or by
- * periodically checking the timestamp of a file and loading if it has changed.
- *
- * Examples:
- * Piped timed menu:
- * rc3:
- * <menu id="name" label="Piped menu" plugin="timed_menu" timeout="120"
- * command="obcommand.py -c bsetbg -d ~/.openbox/backgrounds/" />
- * timeout is in seconds
- *
- * Output of command:
- * <timed_menu>
- * <item label="GLOVE.png">
- * <action name="execute">
- * <execute>
- * bsetbg "/home/woodblock/.openbox/backgrounds/GLOVE.png"
- * </execute>
- * </action>
- * </item>
- * </fifo_menu>
- *
- * stat() menu:
- * <menu id="name" label="Stat menu" plugin="timed_menu" type="stat"
- * timeout="120" file="~/.openbox/stat_menu" />
- * stat_menu contents: same as timed menu
- *
- */
-
-#include <glib.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <sys/stat.h>
-
-#include "kernel/menu.h"
-#include "kernel/timer.h"
-#include "timed_menu.h"
-#include "kernel/action.h"
-#include "kernel/event.h"
-
-#define TIMED_MENU(m) ((ObMenu *)m)
-#define TIMED_MENU_DATA(m) ((Timed_Menu_Data *)((ObMenu *)m)->plugin_data)
-static char *PLUGIN_NAME = "timed_menu";
-
-typedef enum {
- TIMED_MENU_PIPE, /* read entries from a child process' output */
- TIMED_MENU_STAT /* reread entries from file when timestamp changes */
-} Timed_Menu_Type;
-
-typedef struct {
- Timed_Menu_Type type;
- ObTimer *timer;
- char *command; /* command to run or file to stat() */
- char *buf; /* buffer to hold partially read menu */
- unsigned long buflen; /* how many bytes are in the buffer */
- int fd; /* file descriptor to read menu from */
- pid_t pid; /* pid of child process in PIPE */
- time_t mtime; /* time of last modification */
-} Timed_Menu_Data;
-
-
-void plugin_setup_config() { }
-void plugin_startup()
-{ }
-void plugin_shutdown() { }
-
-void timed_menu_clean_up(ObMenu *m) {
- if (TIMED_MENU_DATA(m)->buf != NULL) {
- g_free(TIMED_MENU_DATA(m)->buf);
- TIMED_MENU_DATA(m)->buf = NULL;
- }
-
- TIMED_MENU_DATA(m)->buflen = 0;
-
- if (TIMED_MENU_DATA(m)->fd != -1) {
- event_remove_fd(TIMED_MENU_DATA(m)->fd);
- close(TIMED_MENU_DATA(m)->fd);
- TIMED_MENU_DATA(m)->fd = -1;
- }
-
- if (TIMED_MENU_DATA(m)->pid != -1) {
- waitpid(TIMED_MENU_DATA(m)->pid, NULL, 0);
- TIMED_MENU_DATA(m)->pid = -1;
- }
-}
-
-void timed_menu_read_pipe(int fd, void *d)
-{
- ObMenu *menu = d;
- char *tmpbuf = NULL;
- unsigned long num_read;
-#ifdef DEBUG
- /* because gdb is dumb */
-#if 0
- Timed_Menu_Data *d = TIMED_MENU_DATA(menu);
-#endif
-#endif
-
- unsigned long num_realloc;
- /* if we have less than a quarter BUFSIZ left, allocate more */
- num_realloc = (BUFSIZ - (TIMED_MENU_DATA(menu)->buflen % BUFSIZ) <
- BUFSIZ >> 2) ?
- 0 : BUFSIZ;
-
- tmpbuf = g_try_realloc(TIMED_MENU_DATA(menu)->buf,
- TIMED_MENU_DATA(menu)->buflen + num_realloc);
-
- if (tmpbuf == NULL) {
- g_warning("Unable to allocate memory for read()");
- return;
- }
-
- TIMED_MENU_DATA(menu)->buf = tmpbuf;
-
- num_read = read(fd,
- TIMED_MENU_DATA(menu)->buf + TIMED_MENU_DATA(menu)->buflen,
- num_realloc);
- if (num_read == 0) {
- ObParseInst *i;
- xmlDocPtr doc;
- xmlNodePtr node;
-
- menu->invalid = TRUE;
- menu_clear(menu);
-
- TIMED_MENU_DATA(menu)->buf[TIMED_MENU_DATA(menu)->buflen] = '\0';
-
- i = parse_startup();
-
- if (parse_load_mem(TIMED_MENU_DATA(menu)->buf,
- TIMED_MENU_DATA(menu)->buflen,
- "timed_menu", &doc, &node))
- parse_menu_full(i, doc, node, menu, FALSE);
-
- parse_shutdown(i);
-
- timed_menu_clean_up(menu);
- } else if (num_read > 0) {
- TIMED_MENU_DATA(menu)->buflen += num_read;
- TIMED_MENU_DATA(menu)->buf[TIMED_MENU_DATA(menu)->buflen] = '\0';
- } else { /* num_read < 1 */
- g_warning("Error on read %s", strerror(errno));
- timed_menu_clean_up(menu);
- }
-}
-
-void timed_menu_timeout_handler(ObTimer *t, void *d)
-{
- ObMenu *data = d;
- if (!data->shown && TIMED_MENU_DATA(data)->fd == -1) {
- switch (TIMED_MENU_DATA(data)->type) {
- case (TIMED_MENU_PIPE): {
- /* if the menu is not shown, run a process and use its output
- as menu */
-
- /* I hate you glib in all your hideous forms */
- char *args[4];
- int child_stdout;
- int child_pid;
- args[0] = "/bin/sh";
- args[1] = "-c";
- args[2] = TIMED_MENU_DATA(data)->command;
- args[3] = NULL;
- if (g_spawn_async_with_pipes(
- NULL,
- args,
- NULL,
- G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD,
- NULL,
- NULL,
- &child_pid,
- NULL,
- &child_stdout,
- NULL,
- NULL)) {
- event_fd_handler *h = g_new(event_fd_handler, 1);
- TIMED_MENU_DATA(data)->fd = h->fd = child_stdout;
- TIMED_MENU_DATA(data)->pid = child_pid;
- h->handler = timed_menu_read_pipe;
- h->data = data;
- event_add_fd_handler(h);
- } else {
- g_warning("unable to spawn child");
- }
- break;
- }
-
- case (TIMED_MENU_STAT): {
- struct stat stat_buf;
-
- if (stat(TIMED_MENU_DATA(data)->command, &stat_buf) == -1) {
- g_warning("Unable to stat %s: %s",
- TIMED_MENU_DATA(data)->command,
- strerror(errno));
- break;
- }
-
- if (stat_buf.st_mtime > TIMED_MENU_DATA(data)->mtime) {
- ObParseInst *i;
- xmlDocPtr doc;
- xmlNodePtr node;
-
- g_warning("file changed");
- TIMED_MENU_DATA(data)->mtime = stat_buf.st_mtime;
-
- data->invalid = TRUE;
- menu_clear(data);
-
- i = parse_startup();
-
- if (parse_load(TIMED_MENU_DATA(data)->command,
- "timed_menu", &doc, &node))
- parse_menu_full(i, doc, node, data, FALSE);
-
- parse_shutdown(i);
-
- timed_menu_clean_up(data);
- }
- }
- }
- }
-}
-
-void *plugin_create(PluginMenuCreateData *data)
-{
- char *id;
- char *label;
- char *timeout;
- char *type;
-
- Timed_Menu_Data *d;
- ObMenu *m;
-
- parse_attr_string("id", data->node, &id);
- parse_attr_string("label", data->node, &label);
-
- d = g_new(Timed_Menu_Data, 1);
-
- m = menu_new( (label != NULL ? label : ""),
- (id != NULL ? id : PLUGIN_NAME),
- data->parent);
-
- m->plugin = PLUGIN_NAME;
-
- if (data->parent)
- menu_add_entry(data->parent, menu_entry_new_submenu(
- (label != NULL ? label : ""),
- m));
-
- d->type = TIMED_MENU_PIPE;
-
- if (parse_attr_string("type", data->node, &type) &&
- !g_strcasecmp(type, "stat")) {
- d->type = TIMED_MENU_STAT;
-
- if (!parse_attr_string("file", data->node, &d->command)) {
- d->command = g_strdup("");
- }
- } else
- if (!parse_attr_string("command", data->node, &d->command)) {
- d->command = g_strdup("");
- }
-
- if (parse_attr_string("timeout", data->node, &timeout)) {
- char *endptr;
- gdouble timeout_val = g_strtod(timeout, &endptr);
- g_free(timeout);
- d->timer = timer_start(timeout_val * 1000000,
- &timed_menu_timeout_handler, m);
- } else
- d->timer = timer_start(600 * 1000000, &timed_menu_timeout_handler, m);
-
- d->buf = NULL;
- d->buflen = 0;
- d->fd = -1;
- d->pid = -1;
- d->mtime = 0;
-
- m->plugin_data = (void *)d;
-
- timed_menu_timeout_handler(NULL, m);
- return (void *)m;
-}
-
-void plugin_destroy (void *m)
-{
- timed_menu_clean_up(m);
- /* this will be freed by timer_* */
- timer_stop( ((Timed_Menu_Data *)TIMED_MENU(m)->plugin_data)->timer);
-
- g_free( TIMED_MENU(m)->plugin_data );
-}
projects / chaz / openbox / blobdiff