commit 3810e65cb516c05ee6a9a03f3052141d5ebc5cbd Author: Alexander Rosenberg Date: Sun Aug 28 14:27:03 2022 -0700 Initial commit diff --git a/.clang-format b/.clang-format new file mode 100644 index 0000000..daa0950 --- /dev/null +++ b/.clang-format @@ -0,0 +1,13 @@ +BasedOnStyle: LLVM +IndentWidth: 4 +UseTab: Never +BreakBeforeBraces: Attach +AllowShortBlocksOnASingleLine: Never +AllowShortCaseLabelsOnASingleLine: false +AllowShortFunctionsOnASingleLine: false +AllowShortIfStatementsOnASingleLine: Never +AllowShortLambdasOnASingleLine: false +AlwaysBreakTemplateDeclarations: Yes +AllowShortLoopsOnASingleLine: false +AlwaysBreakAfterReturnType: None +IndentCaseLabels: false \ No newline at end of file diff --git a/.dir-locals.el b/.dir-locals.el new file mode 100644 index 0000000..9278036 --- /dev/null +++ b/.dir-locals.el @@ -0,0 +1,3 @@ +((nil . ((projectile-project-configure-cmd . "cmake -B build -S .") + (projectile-project-compilation-cmd . "cmake --build build") + (projectile-project-run-cmd . "build/quick-text-bar")))) diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c02f490 --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +build/ +compile_commands.json +config.h +config.cmake diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..8fa681e --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,68 @@ +# --- INTERNAL STUFF --- +cmake_minimum_required(VERSION 3.1.0) + +if (NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/config.h") + configure_file(config.h.in "${CMAKE_CURRENT_SOURCE_DIR}/config.h") +endif() +configure_file(quick-text-bar.1.in quick-text-bar.1) + +include(config.cmake.default) +include(config.cmake OPTIONAL) + +set(CMAKE_EXPORT_COMPILE_COMMANDS ON) +set(CMAKE_C_STANDARD 99) +set(THREADS_PREFER_PTHREAD_FLAG ON) + +include(GNUInstallDirs) + +project(quick-text-bar) + +if(EXTRA_FLAGS) + list(JOIN EXTRA_FLAGS " " EXTRA_FLAGS_STRING) + message("Building with extra flags: ${EXTRA_FLAGS_STRING}") +endif() + +find_package(Threads REQUIRED) +find_package(PkgConfig REQUIRED) + +if(EXTRA_PACKAGES) + pkg_check_modules(USER REQUIRED ${EXTRA_PACKAGES}) + include_directories(${USER_INCLUDE_DIRS}) + link_directories(${USER_LIBRARY_DIRS}) + add_definitions(${USER_CFLAGS_OTHER}) + list(APPEND EXTRA_LIBRARIES ${USER_LIBRARIES}) +endif() + +if(USE_X) + pkg_check_modules(X11 REQUIRED x11) + include_directories(${X11_INCLUDE_DIRS}) + link_directories(${X11_LIBRARY_DIRS}) + add_definitions(${X11_CFLAGS_OTHER}) + add_compile_definitions(HAS_X11) + list(APPEND EXTRA_LIBRARIES ${X11_LIBRARIES}) +endif() + +list(LENGTH MODULE_NAMES MODULE_COUNT) +if(MODULE_COUNT EQUAL 0) + message(FATAL_ERROR "No modules defined!") +endif() +foreach(module_name ${MODULE_NAMES}) + string(FIND "${module_name}" "/" sep_index) + if(NOT sep_index EQUAL -1) + set(module_path "${module_name}") + else() + set(module_path "${MODULE_DIRECTORY}${module_name}") + endif() + message("Found module: ${module_path}") + list(APPEND MODULE_SOURCE_FILES "${module_path}") +endforeach() + +add_compile_definitions(QTB_VERSION="${QTB_VERSION}") +add_definitions(${EXTRA_FLAGS}) + +add_executable(quick-text-bar main.c ${MODULE_SOURCE_FILES} ${EXTRA_SOURCE_FILES}) + +target_link_libraries(quick-text-bar PRIVATE Threads::Threads m ${EXTRA_LIBRARIES}) + +install(TARGETS quick-text-bar) +install(FILES "${CMAKE_CURRENT_BINARY_DIR}/quick-text-bar.1" DESTINATION "${CMAKE_INSTALL_MANDIR}/man1") diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..5e14412 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Disclaimer of Warranty. + + THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY +APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT +HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY +OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, +THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM +IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF +ALL NECESSARY SERVICING, REPAIR OR CORRECTION. + + 16. Limitation of Liability. + + IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS +THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY +GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE +USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF +DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD +PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), +EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF +SUCH DAMAGES. + + 17. Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + Quick Dwm Bar + Copyright (C) 2021 Alexander Rosenberg + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) 2021 Alexander Rosenberg + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..e2eaeae --- /dev/null +++ b/README.md @@ -0,0 +1,3 @@ +# Quick Text Bar + +A fast and customizable text based bar for use with programs such as dwm. diff --git a/config.cmake.default b/config.cmake.default new file mode 100644 index 0000000..68b722a --- /dev/null +++ b/config.cmake.default @@ -0,0 +1,28 @@ +# Change these to fit your needs + +# Default path to search for modules +set(MODULE_DIRECTORY "modules/") + +# Modules to add to build +# Linux +set(MODULE_NAMES "fcitx4.c" "time.c" "pulse.c" "linuxnm.c" "battery.c" "bluetooth.c" "optimus.c") +# FreeBSD +#set(MODULE_NAMES "fcitx4.c" "time.c" "oss.c") + +# Non-module files to add to build +set(EXTRA_SOURCE_FILES) + +# Extra flags to pass to compiler or linker +set(EXTRA_FLAGS) + +# Modules to search for and add with pkg-config +# Linux +set(EXTRA_PACKAGES "libpulse" "libnm" "gio-2.0" "gio-unix-2.0") +# FreeBSD +#set(EXTRA_PACKAGES "gio-2.0" "gio-unix-2.0") + +# Set to false to build without x11 +set(USE_X TRUE) + +# Version String +set(QTB_VERSION "1.0.0") diff --git a/config.h.in b/config.h.in new file mode 100644 index 0000000..c6aff11 --- /dev/null +++ b/config.h.in @@ -0,0 +1,53 @@ +/* text pre-pended to the bar */ +#define PREFIX_TEXT "" + +/* text appended to the bar */ +#define SUFFIX_TEXT "" + +/* the seperator between modules */ +#define SEPERATOR_TEXT " " + +/* if TRUE, default to setting the root window title, + otherwise, default to writing to stdout */ +#define DEFAULT_SET_ROOT_TITLE FALSE + +/* minimum time between polling modules for updates. + If commented out, this program will find a good value */ +/* #define REFRESH_TIME MILISECONDS(10) */ + +/* include your custom modules here! + look at util.h to see which functions are available */ +#include "modules/time.h" +#include "modules/pulse.h" +/* #include "modules/oss.h" */ +#include "modules/linuxnm.h" +#include "modules/fcitx4.h" +#include "modules/battery.h" +#include "modules/bluetooth.h" +#include "modules/optimus.h" + +/* once you have written a module in its own file, you need to + define it here. A description of each property follows + - name: the name to idenfity this module in error messages and -i output + - init function: function to be run at the start of this program. + It should return NULL if it suceeded and an error message + if it failed. + - poll function: function to run every poll. A char ** is passed as an argument + and should be set the the functions output. It should return null + if it suceeded and an error message if it failed. + - time: how long to wait between each poll of this module. Should be one of: + MILISECONDS(t), SECCONDS(t), MINUTES(t), HOURS(t), or NO_REFRESH + - signal: when this program receives SIGRTMIN+signal, it will poll modules + with a matching signal and then refresh the bar. NO_SIGNAL will disable + this feature for a given module. */ +struct BarModule modules[] = { + /* name init function poll function time signal */ + { "battery", &battery_module_init, &battery_module_poll, SECONDS(1), 2 }, + { "optimus", &optimus_module_init, &optimus_module_poll, NO_REFRESH, NO_SIGNAL }, + { "fcitx4", &fcitx4_module_init, &fcitx4_module_poll, NO_REFRESH, 3 }, + { "pulse", &pulse_module_init, &pulse_module_poll, NO_REFRESH, 1 }, + /* { "oss", &oss_module_init, &oss_module_poll, MILISECONDS(250), NO_SIGNAL }, */ + { "time", NULL, &time_module_poll, MILISECONDS(500), NO_SIGNAL }, + { "linuxnm", &linuxnm_module_init, &linuxnm_module_poll, NO_REFRESH, 2 }, + { "bluetooth", &bluetooth_module_init, &bluetooth_module_poll, NO_REFRESH, 4 } +}; diff --git a/main.c b/main.c new file mode 100644 index 0000000..823401e --- /dev/null +++ b/main.c @@ -0,0 +1,844 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef HAS_X11 +#include +#endif + +#define FALSE 0 +#define TRUE 1 + +#define NO_REFRESH 0 +#define NO_SIGNAL 0 + +#define MILISECONDS(t) (t) +#define SECONDS(t) (t * 1000) +#define MINUTES(t) (SECONDS(t) * 60) +#define HOURS(t) (MINUTES(t) * 60) + +struct BarModule { + const char *name; + void (*init)(void); + char *(*poll)(void); + const unsigned long refresh_time; + const int signal; + unsigned long last_refresh; + char *last_text; + size_t last_text_length; + int disabled; +}; + +#include "config.h" + +typedef int error_code; + +#define ERROR_NONE 0 +#define ERROR_UNKNOWN 1 +#define ERROR_ARG 2 +#define ERROR_MEMORY 3 +#define ERROR_MODULE 4 +#define ERROR_CONFIG 5 +#define ERROR_X11 6 + +typedef int arg_action; + +#define ARG_ACTION_NONE 0 +#define ARG_ACTION_CONTINUE 1 +#define ARG_ACTION_STOP 2 +#define ARG_ACTION_SKIP 3 + +static const size_t global_prefix_length = sizeof(PREFIX_TEXT) - 1; +static const size_t global_suffix_length = sizeof(SUFFIX_TEXT) - 1; +static const size_t global_seperator_length = sizeof(SEPERATOR_TEXT) - 1; +static const size_t global_module_count = + sizeof(modules) / sizeof(struct BarModule); +static size_t global_disabled_module_count = 0; +static int global_interpret_flags = TRUE; +static error_code global_last_error = ERROR_NONE; +static const char *global_exec_name; +static struct timespec global_refresh_time; +static clockid_t global_cpu_clock_id; +static unsigned long global_last_refresh; +static pthread_t global_main_thread; +static sigset_t global_real_time_mask; + +#ifdef HAS_X11 +static Display *global_x_display; +static int global_x_screen; +static Window global_x_root; +static const char *flag_x_display_name; +#elif DEFAULT_SET_ROOT_TITLE != FALSE +#error "DEFAULT_SET_ROOT_TITLE can't be TRUE unless X11 support is included" +#endif + +static int flag_print_version = FALSE; +static int flag_print_help = FALSE; +static int flag_print_info = FALSE; +static int flag_set_root_title = DEFAULT_SET_ROOT_TITLE; +static int flag_write_to_stdout = !DEFAULT_SET_ROOT_TITLE; + +/* internal function declarations */ +static void qtb_exit(void); +static void qtb_exit_with_status(error_code status); +static void check_config(void); +static const char *check_arg_value(char arg, const char *value, + arg_action current_action); +static void set_disabled_modules(const char *arg); +static arg_action interpret_flag_character(char arg, const char *next, + arg_action current_action); +static arg_action interpret_flag_arg(const char *arg, const char *next); +static arg_action interpret_normal_arg(const char *arg, const char *next); +static void interpret_args(int argc, const char **argv); +static void print_flag_error(char arg); +static void print_arg_error(const char *arg); +static void print_help_and_exit(void); +static void print_version_and_exit(void); +static void print_info_and_exit(void); +static unsigned long find_gcf(unsigned long *nums, size_t len); +static unsigned long *find_prime_factors(unsigned long n, size_t *out_len); +static void initialize_modules(void); +static void set_refresh_time(void); +static void signal_handler(int signum); +static void setup_signals(void); +static unsigned long find_module_refresh_gcf(void); +static unsigned long timespec_to_miliseconds(struct timespec *ts); +static void miliseconds_to_timespec(unsigned long ms, struct timespec *out_ts); +static void do_initial_refresh(void); +static void refresh_module(struct BarModule *module); +static int check_and_refresh_module(struct BarModule *module, + unsigned long current_time); +static void module_poll_loop(void); +static void rewrite_bar(void); +static void timespec_diff(const struct timespec *start, + const struct timespec *end, struct timespec *out); +static void init_x(void); +static void set_x_root_title(const char *title); + +/* module api functions */ +void _qtb_internal_log(const char *fmt, ...); +#define qtb_log(...) _qtb_internal_log(__VA_ARGS__) +void qtb_die(void); +void qtb_signal_modules(int sig); +static char *read_file(int fd); +static int handle_execute_parent(pid_t pid, int child_in, int child_out, + int child_err, const char *in, + const char **out, const char **err); +static void handle_execute_child(const char *name, const char **argv, int in, + int out, int err); +void *qtb_malloc(size_t size); +static int is_overflow(size_t n1, size_t n2); +void *qtb_calloc(size_t n, size_t size); +void *qtb_realloc(void *ptr, size_t size); +char *qtb_strdup(const char *str); +void qtb_free(void *ptr); +#ifdef HAS_X11 +Display *qtb_get_x_display(void); +#endif + +/* function definitions */ +int main(int argc, const char **argv) { + global_exec_name = argv[0]; + global_main_thread = pthread_self(); + check_config(); + interpret_args(argc, argv); + if (flag_print_help) { + print_help_and_exit(); + } else if (flag_print_version) { + print_version_and_exit(); + } else if (flag_print_info) { + print_info_and_exit(); + } else if (global_disabled_module_count == global_module_count) { + qtb_log("all modules disabled! exiting..."); + qtb_exit_with_status(ERROR_ARG); + } else if (global_last_error != ERROR_NONE) { + qtb_exit(); + } + if (clock_getcpuclockid(0, &global_cpu_clock_id) != 0) { + qtb_log("error: could not get cpu clock id"); + qtb_exit_with_status(ERROR_UNKNOWN); + } + init_x(); + set_refresh_time(); + setup_signals(); + initialize_modules(); + do_initial_refresh(); + sigprocmask(SIG_UNBLOCK, &global_real_time_mask, NULL); + module_poll_loop(); + return 0; +} + +static void qtb_exit() { + qtb_exit_with_status(global_last_error); +} + +static void qtb_exit_with_status(error_code status) { + exit(status); +} + +static void check_config() { + if (global_module_count == 0) { + qtb_log("error: no modules defined"); + qtb_exit_with_status(ERROR_CONFIG); + } +#ifdef REFRESH_TIME + if (REFRESH_TIME <= 0) { + qtb_log("error: refresh time must be greater than 0, was: '%lu'", + REFRESH_TIME); + qtb_exit_with_status(ERROR_CONFIG); + } +#endif +} + +/* if current_action is ARG_ACTION_SKIP, print an error and return NULL, + otherwise, return value */ +static const char *check_arg_value(char arg, const char *value, + arg_action current_action) { + if (current_action == ARG_ACTION_SKIP) { + qtb_log("error: value already in use by another option: '%s'", arg); + return NULL; + } + if (!value) { + qtb_log("error: option requires value: '%c'", arg); + } + return value; +} + +static void set_disabled_modules(const char *arg) { + if (arg == NULL) { + return; + } + /* reset module disabled state */ + global_disabled_module_count = 0; + size_t i; + for (i = 0; i < global_module_count; ++i) { + modules[i].disabled = FALSE; + } + char *arg_copy = qtb_strdup(arg); + char *end_ptr; + const char *current = strtok_r(arg_copy, ";", &end_ptr); + while (current) { + /* size_t i; */ + for (i = 0; i < global_module_count; ++i) { + if (strcmp(modules[i].name, current) == 0) { + modules[i].disabled = TRUE; + ++global_disabled_module_count; + goto found_module; + } + } + qtb_log("attempt to disable unknown module: '%s'", current); + found_module: + current = strtok_r(NULL, ";", &end_ptr); + continue; + } + qtb_free(arg_copy); +} + +/* if current_action is ARG_ACTION_SKIP, error if we encounter an arg with a + * value */ +static arg_action interpret_flag_character(char arg, const char *next, + arg_action current_action) { + switch (arg) { + case 'v': + flag_print_version = TRUE; + return ARG_ACTION_STOP; + case 'h': + flag_print_help = TRUE; + return ARG_ACTION_STOP; + case 'i': + flag_print_info = TRUE; + return ARG_ACTION_STOP; + case 's': + flag_write_to_stdout = TRUE; + flag_set_root_title = FALSE; + return ARG_ACTION_CONTINUE; + case 'n': + set_disabled_modules(check_arg_value(arg, next, current_action)); + return ARG_ACTION_SKIP; +#ifdef HAS_X11 + case 'd': + flag_x_display_name = check_arg_value(arg, next, current_action); + return ARG_ACTION_SKIP; + case 'r': + flag_set_root_title = TRUE; + flag_write_to_stdout = FALSE; + return ARG_ACTION_CONTINUE; +#else + case 'd': + case 'r': + qtb_log("error: X11 support not included in build"); + global_last_error = ERROR_X11; + return ARG_ACTION_STOP; +#endif + default: + global_last_error = ERROR_ARG; + print_flag_error(arg); + return ARG_ACTION_CONTINUE; + } +} + +static arg_action interpret_flag_arg(const char *arg, const char *next) { + if (!global_interpret_flags) { + return ARG_ACTION_NONE; + } + if (strcmp(arg, "--") == 0) { + global_interpret_flags = FALSE; + return ARG_ACTION_NONE; + } + if (arg[0] == '\0') { + print_arg_error(arg); + return ARG_ACTION_CONTINUE; + } + if (arg[0] == '-') { + if (arg[1] == '\0') { + print_arg_error(arg); + return ARG_ACTION_CONTINUE; + } + arg_action return_action = ARG_ACTION_CONTINUE; + ++arg; + while (*arg) { + arg_action current_action = + interpret_flag_character(*arg, next, return_action); + if (current_action == ARG_ACTION_STOP) { + return ARG_ACTION_STOP; + } else if (current_action == ARG_ACTION_CONTINUE && return_action != ARG_ACTION_SKIP) { + return_action = ARG_ACTION_CONTINUE; + } else if (current_action == ARG_ACTION_SKIP) { + return_action = ARG_ACTION_SKIP; + } + ++arg; + } + return return_action; + } + return ARG_ACTION_NONE; +} + +static arg_action interpret_normal_arg(const char *arg, const char *next) { + print_arg_error(arg); + return ARG_ACTION_CONTINUE; +} + +static void interpret_args(int argc, const char **argv) { + int i; + for (i = 1; i < argc; ++i) { + const char *current_arg = argv[i]; + const char *current_value = argv[i + 1]; + arg_action flag_action = interpret_flag_arg(current_arg, current_value); + switch (flag_action) { + case ARG_ACTION_NONE: + break; + case ARG_ACTION_CONTINUE: + continue; + case ARG_ACTION_STOP: + return; + case ARG_ACTION_SKIP: + ++i; + continue; + } + arg_action normal_action = + interpret_normal_arg(current_arg, current_value); + switch (normal_action) { + case ARG_ACTION_NONE: + break; + case ARG_ACTION_CONTINUE: + continue; + case ARG_ACTION_STOP: + return; + case ARG_ACTION_SKIP: + ++i; + continue; + } + } +} + +static void print_flag_error(char arg) { + if (isprint(arg)) { + qtb_log("error: unknown option: '%c'", arg); + } else { + qtb_log("error: unknown option: '0x%X'", arg); + } +} + +static void print_arg_error(const char *arg) { + qtb_log("error: unknown argument: '%s'", arg); +} + +static void print_help_and_exit() { + printf("quick-text-bar - a fast and customizable text based bar\n"); +#if HAS_X11 + printf("usage: %s [-h] [-v] [-i] [-n MODULES] [-d DISPLAY] [-r] [-s] \n", + global_exec_name); +#else + printf("usage: %s [-h] [-v] [-i] [-n MODULES] [-s] \n", global_exec_name); +#endif + printf(" -h show this message, then exit\n"); + printf(" -v print version, then exit\n"); + printf(" -i print version and module informaton, then exit\n"); + printf(" -n semi-colon seperated list of modules to disable\n"); +#ifdef HAS_X11 + printf(" -d the X display to use when setting the root window name\n"); + if (DEFAULT_SET_ROOT_TITLE) { + printf(" -r set the X root window name when updating the bar " + "(default)\n"); + printf(" -s write to stdout when updating the bar\n"); + } else { + printf(" -r set the X root window name when updating the bar\n"); + printf(" -s write to stdout when updating the bar (default)\n"); + } +#else + printf(" -d the X display to use when setting the root window name " + "(disabled)\n"); + printf(" -r set the X root window name when updating the bar " + "(disabled)\n"); + printf(" -s write to stdout when updating the bar\n"); +#endif + qtb_exit(); +} + +static void print_version_and_exit() { + printf("quick-text-bar v%s\n", QTB_VERSION); + qtb_exit(); +} + +static void print_info_and_exit(void) { + printf("quick-text-bar v%s\n", QTB_VERSION); +#ifdef HAS_X11 + printf("X11 Support: Present\n"); +#else + printf("X11 Support: Absent\n"); +#endif + printf("Modules: %zu\n", global_module_count); + size_t i; + for (i = 0; i < global_module_count; ++i) { + printf(" %s\n", modules[i].name); + } + qtb_exit(); +} + +static unsigned long find_gcf(unsigned long *nums, size_t len) { + if (len == 0) { /* gcf(0) = 0 */ + return 0; + } else if (len == 1) { /* gcf(n) = n */ + return nums[0]; + } + /* calculate all prime factors */ + unsigned long **prime_factors = NULL; + size_t prime_factors_length = 0; + size_t i; + for (i = 0; i < len; ++i) { + unsigned long *i_prime_factors = find_prime_factors(nums[i], NULL); + prime_factors = qtb_realloc(prime_factors, sizeof(unsigned long *) * + ++prime_factors_length); + prime_factors[prime_factors_length - 1] = i_prime_factors; + } + /* find which calculated prime factors are common to all inputs */ + unsigned long *common_factors = NULL; + size_t common_factors_length = 0; + unsigned long *j; + /* loop though each factor in prime_factors[0] */ + for (j = prime_factors[0]; *j != 0; ++j) { + /* loop though every set of factors except prime_factors[0] */ + /* size_t i; */ + for (i = 1; i < prime_factors_length; ++i) { + unsigned long *i_prime_factors; + for (i_prime_factors = prime_factors[i]; *i_prime_factors != 0; + ++i_prime_factors) { + if (*i_prime_factors == *j) { + *i_prime_factors = 4; /* remove the factor (by setting it to + a composite number) */ + goto found_factor; + } + } + /* the factor was not found, therefore we can't add it */ + goto dont_add; + /* we found the factor, check the next set of factors */ + found_factor: + continue; + } + /* the factor was a common factor, add it */ + common_factors = qtb_realloc( + common_factors, sizeof(unsigned long) * ++common_factors_length); + common_factors[common_factors_length - 1] = *j; + /* the factor was not a common factor */ + dont_add: + continue; + } + /* qtb_free sets of factors */ + /* size_t i; */ + for (i = 0; i < prime_factors_length; ++i) { + qtb_free(prime_factors[i]); + } + qtb_free(prime_factors); + /* finally, calculate the gcf */ + unsigned long gcf = 1; + /* size_t i; */ + for (i = 0; i < common_factors_length; ++i) { + gcf *= common_factors[i]; + } + qtb_free(common_factors); + return gcf; +} + +/* return value will be 0 terminated. if out_len is not NULL, + it's value will be set to the number of primes found (length of return value + - 1) */ +static unsigned long *find_prime_factors(unsigned long n, size_t *out_len) { + unsigned long *out_arr = NULL; + size_t arr_len = 0; + while (n % 2 == 0) { + out_arr = qtb_realloc(out_arr, sizeof(unsigned long) * ++arr_len); + out_arr[arr_len - 1] = 2; + n /= 2; + } + unsigned long i; + for (i = 3; i <= sqrtl(n); i += 2) { + while (n % i == 0) { + out_arr = + qtb_realloc(out_arr, sizeof(unsigned long) * ++arr_len); + out_arr[arr_len - 1] = i; + n /= i; + } + } + if (n > 2) { + out_arr = qtb_realloc(out_arr, sizeof(unsigned long) * ++arr_len); + out_arr[arr_len - 1] = n; + } + out_arr = qtb_realloc(out_arr, sizeof(unsigned long) * arr_len); + out_arr[arr_len] = 0; + if (out_len) { + *out_len = arr_len; + } + return out_arr; +} + +static void initialize_modules() { + int has_error = FALSE; + size_t i; + for (i = 0; i < global_module_count; ++i) { + if (modules[i].disabled) { + continue; + } + if (modules[i].signal + SIGRTMIN > SIGRTMAX) { + has_error = TRUE; + qtb_log("%s: error: signal out of range: %d\n", + modules[i].signal + SIGRTMIN); + continue; + } + if (modules[i].init) { + modules[i].init(); + } + modules[i].last_text = NULL; + modules[i].last_refresh = 0; + } + if (has_error) { + qtb_log("error: some modules were not initialized, exiting..."); + qtb_exit_with_status(ERROR_MODULE); + } +} + +static void set_refresh_time() { +#ifdef REFRESH_TIME + unsigned long refresh_ms = REFRESH_TIME; +#else + unsigned long refresh_ms = find_module_refresh_gcf(); + if (refresh_ms == 0) { /* if all modules are triggered by signals */ + refresh_ms = HOURS(1); /* refresh once an hour */ + } +#endif + miliseconds_to_timespec(refresh_ms, &global_refresh_time); +} + +static void signal_handler(int signum) { + struct timespec current_time; + clock_gettime(global_cpu_clock_id, ¤t_time); + int module_updated = FALSE; + unsigned long current_time_ms = timespec_to_miliseconds(¤t_time); + int adjusted_signum = signum - SIGRTMIN; + size_t i; + for (i = 0; i < global_module_count; ++i) { + if (!modules[i].disabled && modules[i].signal == adjusted_signum) { + refresh_module(&modules[i]); + modules[i].last_refresh = current_time_ms; + module_updated = TRUE; + } + } + if (module_updated) { + rewrite_bar(); + } +} + +static void setup_signals() { + sigemptyset(&global_real_time_mask); + int i; + for (i = SIGRTMIN; i <= SIGRTMAX; ++i) { + sigaddset(&global_real_time_mask, i); + struct sigaction action; + sigemptyset(&action.sa_mask); + action.sa_flags = 0; + action.sa_handler = &signal_handler; + if (sigaction(i, &action, NULL) != 0) { + qtb_log("error: could not setup handler for signal: %d", i); + qtb_exit_with_status(ERROR_UNKNOWN); + } + } + sigprocmask(SIG_BLOCK, &global_real_time_mask, NULL); +} + +static unsigned long find_module_refresh_gcf() { + size_t refresh_times_length = 0; + unsigned long *refresh_times = NULL; + size_t i; + for (i = 0; i < global_module_count; ++i) { + if (!modules[i].disabled && modules[i].refresh_time != NO_REFRESH) { + refresh_times = qtb_realloc( + refresh_times, sizeof(unsigned long) * ++refresh_times_length); + refresh_times[refresh_times_length - 1] = modules[i].refresh_time; + } + } + unsigned long gcf = find_gcf(refresh_times, refresh_times_length); + qtb_free(refresh_times); + return gcf; +} + +static unsigned long timespec_to_miliseconds(struct timespec *ts) { + return (ts->tv_sec * 1000) + (ts->tv_nsec / 1000000); +} + +static void miliseconds_to_timespec(unsigned long ms, struct timespec *out_ts) { + out_ts->tv_sec = floorl(ms / 1000); + out_ts->tv_nsec = (ms % 1000) * 1000000; +} + +static void do_initial_refresh() { + int has_normal_module = FALSE; + size_t i; + for (i = 0; i < global_module_count; ++i) { + if (modules[i].disabled) { + continue; + } + if (modules[i].refresh_time != NO_REFRESH) { + has_normal_module = TRUE; + } + if (modules[i].poll) { + refresh_module(&modules[i]); + } + } + if (!has_normal_module) { + rewrite_bar(); + } +} + +static void refresh_module(struct BarModule *module) { + sigprocmask(SIG_BLOCK, &global_real_time_mask, NULL); + if (module->last_text) { + qtb_free(module->last_text); + module->last_text = NULL; + } + module->last_text = module->poll(); + if (module->last_text) { + module->last_text_length = strlen(module->last_text); + } else { + module->last_text_length = 0; + } + sigprocmask(SIG_UNBLOCK, &global_real_time_mask, NULL); +} + +/* return TRUE if the module was refreshed, FALSE otherwise */ +static int check_and_refresh_module(struct BarModule *module, + unsigned long current_time) { + if (module->disabled || module->refresh_time == NO_REFRESH) { + return FALSE; + } + unsigned long module_last_refresh = + module->last_refresh + module->refresh_time; + if (module_last_refresh >= global_last_refresh && module->poll) { + refresh_module(module); + module->last_refresh = current_time; + return TRUE; + } + return FALSE; +} + +static void module_poll_loop() { + while (TRUE) { + struct timespec current_time; + clock_gettime(global_cpu_clock_id, ¤t_time); + unsigned long current_time_ms = timespec_to_miliseconds(¤t_time); + int module_refreshed = FALSE; + size_t i; + for (i = 0; i < global_module_count; ++i) { + if (check_and_refresh_module(&modules[i], current_time_ms)) { + module_refreshed = TRUE; + } + } + if (module_refreshed) { + rewrite_bar(); + } + /* calculate how long it took us to run this iteration + and subtract it from the refresh time */ + struct timespec end_time; + clock_gettime(global_cpu_clock_id, &end_time); + struct timespec span_time; + timespec_diff(¤t_time, &end_time, &span_time); + struct timespec final_sleep_time; + timespec_diff(&span_time, &global_refresh_time, &final_sleep_time); + nanosleep(&final_sleep_time, NULL); + } +} + +static void rewrite_bar() { + /* start with size of prefix, suffix, and null byte */ + size_t bar_length = global_prefix_length + global_suffix_length + 1; + char *bar_text = qtb_malloc(bar_length); + bar_text[0] = '\0'; + strcat(bar_text, PREFIX_TEXT); + size_t i; + for (i = 0; i < global_module_count - 1; ++i) { + if (modules[i].last_text) { + bar_text = qtb_realloc( + bar_text, (bar_length += modules[i].last_text_length + + global_seperator_length)); + strcat(bar_text, modules[i].last_text); + strcat(bar_text, SEPERATOR_TEXT); + } + } + struct BarModule *last_module = &modules[global_module_count - 1]; + if (last_module->last_text) { + bar_text = qtb_realloc( + bar_text, (bar_length += last_module->last_text_length)); + strcat(bar_text, last_module->last_text); + } + strcat(bar_text, SUFFIX_TEXT); + if (flag_set_root_title) { + set_x_root_title(bar_text); + } else { + printf("%s\n", bar_text); + fflush(stdout); + } + qtb_free(bar_text); +} + +/* subtract start from end */ +static void timespec_diff(const struct timespec *start, + const struct timespec *end, struct timespec *out) { + out->tv_nsec = end->tv_nsec - start->tv_nsec; + out->tv_sec = end->tv_sec - start->tv_sec; + if (out->tv_sec < 0) { /* start > end */ + out->tv_sec = 0; + out->tv_nsec = 0; + } else if (out->tv_nsec < 0) { + out->tv_nsec += 1000000000l; + --out->tv_sec; + if (out->tv_sec < 0) { + out->tv_sec = 0; + } + } +} + +static void init_x() { +#ifdef HAS_X11 + global_x_display = XOpenDisplay(flag_x_display_name); + if (!global_x_display) { + const char *display_name; + if (flag_x_display_name) { + display_name = flag_x_display_name; + } else { + display_name = XDisplayName(NULL); + } + qtb_log("error: failed to open X display: '%s'", display_name); + if (flag_set_root_title) { + qtb_exit_with_status(ERROR_X11); + } + } else { + global_x_screen = XDefaultScreen(global_x_display); + global_x_root = XRootWindow(global_x_display, global_x_screen); + } +#endif +} + +static void set_x_root_title(const char *title) { +#ifdef HAS_X11 + if (global_x_display) { + XStoreName(global_x_display, global_x_root, title); + XFlush(global_x_display); + } +#endif +} + +/* module api definitions */ +void _qtb_internal_log(const char *fmt, ...) { + fprintf(stderr, "%s: ", global_exec_name); + va_list args; + va_start(args, fmt); + vfprintf(stderr, fmt, args); + va_end(args); + fwrite("\n", 1, 1, stderr); +} + +void qtb_die() { + qtb_exit_with_status(ERROR_MODULE); +} + +void qtb_signal_modules(int sig) { + pthread_kill(global_main_thread, SIGRTMIN + sig); +} + +void *qtb_malloc(size_t size) { + return qtb_realloc(NULL, size); +} + +static int is_overflow(size_t n1, size_t n2) { + if (n1 <= 1 || n2 <= 1) { + return FALSE; + } + return (n1 * n2) / n1 != n2; +} + +void *qtb_calloc(size_t n, size_t size) { + if (is_overflow(n, size)) { + qtb_log( + "attempt to allocate %zu bytes %zu times failed due to overflow", n, + size); + qtb_exit_with_status(ERROR_MEMORY); + } + size_t total_size = n * size; + void *ptr = qtb_malloc(total_size); + memset(ptr, 0, total_size); + return ptr; +} + +void *qtb_realloc(void *ptr, size_t size) { + void *new_ptr = realloc(ptr, size); + if (!new_ptr) { + qtb_log("error: out of memory"); + qtb_exit_with_status(ERROR_MEMORY); + } + return new_ptr; +} + +char *qtb_strdup(const char *str) { + size_t len = strlen(str); + char *new_str = qtb_malloc(len + 1); + memcpy(new_str, str, len + 1); + return new_str; +} + +void qtb_free(void *ptr) { + if (ptr) { + free(ptr); + } +} + +#ifdef HAS_X11 +Display *qtb_get_x_display(void) { + return global_x_display; +} +#endif diff --git a/modules/battery.c b/modules/battery.c new file mode 100644 index 0000000..bcc0dd2 --- /dev/null +++ b/modules/battery.c @@ -0,0 +1,153 @@ +#include "battery.h" +#include "../util.h" + +#include +#include +#include +#include + +#define ADAPTER_BASE_PATH "/sys/class/power_supply/" +#define BATTERY_PATH "/sys/class/power_supply/BAT0" + +static const char *adapter_search_names[] = {"AC0", "ADP1"}; +static size_t adapter_search_names_count = + sizeof(adapter_search_names) / sizeof(char *); +static char *adapter_status_path; +static int max_batery_charge; +static int show_notifiaction = TRUE; + +static void find_max_battery_charge() { + FILE *max_file = fopen(BATTERY_PATH "/charge_full", "r"); + fseeko(max_file, 0, SEEK_END); + off_t len = ftello(max_file); + rewind(max_file); + char text[len + 1]; + text[len] = '\0'; + fread(text, 1, len, max_file); + max_batery_charge = strtoul(text, NULL, 10); + fclose(max_file); +} + +static int is_battery_full() { + FILE *status_file = fopen(BATTERY_PATH "/status", "r"); + if (!status_file) { + return FALSE; + } + fseeko(status_file, 0, SEEK_END); + off_t len = ftello(status_file); + rewind(status_file); + char status_text[len + 1]; + status_text[len] = '\0'; + fread(status_text, 1, len, status_file); + fclose(status_file); + return strcmp(status_text, "Full\n") == 0; +} + +static int get_battery_percent() { + if (is_battery_full()) { + return 100; + } + FILE *battery_file = fopen(BATTERY_PATH "/charge_now", "r"); + if (!battery_file) { + return -1; + } + fseeko(battery_file, 0, SEEK_END); + off_t len = ftello(battery_file); + rewind(battery_file); + char charge_text[len + 1]; + charge_text[len] = '\0'; + fread(charge_text, 1, len, battery_file); + fclose(battery_file); + long charge = strtoul(charge_text, NULL, 10); + float scale = (float)charge / (float)max_batery_charge; + return round(scale * 100.0f); +} + +static int is_adapter_connected() { + FILE *adapter_file = fopen(adapter_status_path, "r"); + if (!adapter_file) { + return -1; + } + char text[2] = {'\0', '\0'}; + fread(text, 1, 1, adapter_file); + fclose(adapter_file); + return text[0] == '1'; /* 1 means connected, anything else is not */ +} + +static void find_adapter_status_path() { + size_t i; + for (i = 0; i < adapter_search_names_count; ++i) { + size_t name_len = strlen(adapter_search_names[i]); + /* -1 is to compensate for '\0' at end of "/online" */ + char *name = qtb_malloc(sizeof(ADAPTER_BASE_PATH) + name_len + sizeof("/online") - 1); + sprintf(name, "%s%s/online", ADAPTER_BASE_PATH, adapter_search_names[i]); + FILE *file = fopen(name, "r"); + if (file) { + adapter_status_path = name; + } else { + qtb_free(name); + } + } +} + +void battery_module_init(void) { + find_max_battery_charge(); + find_adapter_status_path(); +} + +static const char *get_battery_icon(int percent, int adapter) { + if (adapter) { + return ""; + } else if (percent <= 10) { + return ""; + } else if (percent <= 20) { + return ""; + } else if (percent <= 30) { + return ""; + } else if (percent <= 40) { + return ""; + } else if (percent <= 50) { + return ""; + } else if (percent <= 60) { + return ""; + } else if (percent <= 70) { + return ""; + } else if (percent <= 90) { + return ""; + } else if (percent < 100) { + return ""; + } else { + return ""; + } +} + +static void warn_low_battery() { +#ifdef HAS_X11 + if (qtb_get_x_display()) { /* if x is running */ + system("notify-send -t 0 'Battery is less than 10%!'"); + } else { +#endif + system("wall -t 0 'Battery is less than 10%!'"); +#ifdef HAS_X11 + } +#endif +} + +char *battery_module_poll() { + char *output = qtb_calloc(16, 1); + int percent = get_battery_percent(); + int adapter = is_adapter_connected(); + if (percent == -1 || adapter == -1) { + sprintf(output, "？N/A%%"); + } else { + const char *icon = get_battery_icon(percent, adapter); + sprintf(output, "%s%3d%%", icon, percent); + if (show_notifiaction && percent <= 10) { + warn_low_battery(); + show_notifiaction = FALSE; + } else if (percent > 10) { + show_notifiaction = TRUE; + } + } + return output; +} diff --git a/modules/battery.h b/modules/battery.h new file mode 100644 index 0000000..487f863 --- /dev/null +++ b/modules/battery.h @@ -0,0 +1,2 @@ +extern void battery_module_init(void); +extern char *battery_module_poll(void); diff --git a/modules/bluetooth.c b/modules/bluetooth.c new file mode 100644 index 0000000..52ae50d --- /dev/null +++ b/modules/bluetooth.c @@ -0,0 +1,118 @@ +#include "bluetooth.h" +#include "../util.h" + +#include +#include + +static long long powered_devices = 0; + +static GPtrArray *get_bluetooth_device_paths() { + DIR *dir = opendir("/sys/class/bluetooth"); + if (!dir) { + return NULL; + } + GPtrArray *arr = g_ptr_array_new(); + struct dirent *current; + while ((current = readdir(dir))) { + if (strcmp(current->d_name, ".") != 0 && + strcmp(current->d_name, "..") != 0) { + char *path = g_strdup_printf("/org/bluez/%s", current->d_name); + g_ptr_array_add(arr, path); + } + } + closedir(dir); + return arr; +} + +static void load_initial_device_states(GDBusConnection *dbus, + GPtrArray *devices) { + gsize i; + for (i = 0; i < devices->len; ++i) { + const char *path = g_ptr_array_index(devices, i); + GError *err = NULL; + GVariant *response = g_dbus_connection_call_sync( + dbus, "org.bluez", path, "org.freedesktop.DBus.Properties", "Get", + g_variant_new_parsed("('org.bluez.Adapter1', 'Powered')"), + (GVariantType *)"(v)", G_DBUS_CALL_FLAGS_NONE, -1, NULL, &err); + if (response) { + GVariant *wrapper = g_variant_get_child_value(response, 0); + GVariant *value = g_variant_get_child_value(wrapper, 0); + gboolean powered = g_variant_get_boolean(value); + if (powered) { + ++powered_devices; + } /* sice powered_devices is already 0, we dont have to increment it + if the device is not powered */ + g_variant_unref(value); + g_variant_unref(wrapper); + g_variant_unref(response); + } + } + qtb_signal_modules(4); +} + +static void device_changed_callback(GDBusConnection *dbus, + const char *sender_name, + const char *object_path, + const char *interface_name, + const char *signal_name, GVariant *params, + gpointer user_data) { + GVariant *changed = g_variant_get_child_value(params, 1); + GVariant *value_wrapper = g_variant_lookup_value(changed, "Powered", G_VARIANT_TYPE_BOOLEAN); + if (value_wrapper) { + gboolean powered = g_variant_get_boolean(value_wrapper); + if (powered) { + ++powered_devices; + } else { + --powered_devices; + } + g_variant_unref(value_wrapper); + } + g_variant_unref(changed); + qtb_signal_modules(4); +} + +static void subscribe_to_events(GDBusConnection *dbus, GPtrArray *devices) { + gsize i; + for (i = 0; i < devices->len; ++i) { + const char *path = g_ptr_array_index(devices, i); + g_dbus_connection_signal_subscribe( + dbus, NULL, "org.freedesktop.DBus.Properties", "PropertiesChanged", + path, "org.bluez.Adapter1", G_DBUS_SIGNAL_FLAGS_NONE, + &device_changed_callback, NULL, NULL); + } +} + +static void *thread_action() { + GMainContext *context = g_main_context_new(); + g_main_context_push_thread_default(context); + GError *err = NULL; + GDBusConnection *dbus = g_bus_get_sync(G_BUS_TYPE_SYSTEM, NULL, &err); + if (err) { + qtb_log("could not connect to bluez on the system bus: %s", + err->message); + qtb_die(); + } + GPtrArray *devices = get_bluetooth_device_paths(); + load_initial_device_states(dbus, devices); + subscribe_to_events(dbus, devices); + gsize i; + for (i = 0; i < devices->len; ++i) { + g_free(g_ptr_array_index(devices, i)); + } + g_ptr_array_free(devices, TRUE); + GMainLoop *main_loop = g_main_loop_new(context, FALSE); + g_main_loop_run(main_loop); + return NULL; +} + +void bluetooth_module_init() { + g_thread_new("bluetooth-module", &thread_action, NULL); +} + +char *bluetooth_module_poll() { + char *output = NULL; + if (powered_devices != 0) { + output = qtb_strdup(" "); + } + return output; +} diff --git a/modules/bluetooth.h b/modules/bluetooth.h new file mode 100644 index 0000000..f510fa6 --- /dev/null +++ b/modules/bluetooth.h @@ -0,0 +1,2 @@ +extern void bluetooth_module_init(void); +extern char *bluetooth_module_poll(void); diff --git a/modules/fcitx4.c b/modules/fcitx4.c new file mode 100644 index 0000000..4a09e69 --- /dev/null +++ b/modules/fcitx4.c @@ -0,0 +1,89 @@ +#include "fcitx4.h" +#include "../util.h" + +#include +#include +#include + +struct input_method { + const char *name; + const char *symbol; +}; +const struct input_method input_methods[] = { + {"fcitx-keyboard-us", "Ｅ"}, + {"kkc", "和"}, + {"mozc", "和"} +}; +static const size_t im_count = sizeof(input_methods) / sizeof(struct input_method); +static const struct input_method *current_im = NULL; + +static const struct input_method *find_im(const char *name) { + size_t i; + for (i = 0; i < im_count; ++i) { + if (strcmp(name, input_methods[i].name) == 0) { + return &input_methods[i]; + } + } + return NULL; +} + +static void set_current_im(GDBusConnection *dbus) { + current_im = NULL; + GVariant *tuple = g_dbus_connection_call_sync( + dbus, "org.fcitx.Fcitx", "/inputmethod", "org.fcitx.Fcitx.InputMethod", + "GetCurrentIM", NULL, G_VARIANT_TYPE_TUPLE, G_DBUS_CALL_FLAGS_NONE, -1, + NULL, NULL); + if (tuple) { + GVariant *response = g_variant_get_child_value(tuple, 0); + size_t response_len; + const char *response_im = g_variant_get_string(response, &response_len); + current_im = find_im(response_im); + g_variant_unref(response); + g_variant_unref(tuple); + } +} + +static void im_changed_callback(GDBusConnection *dbus, const char *sender_name, + const char *object_path, const char *interface_name, + const char *signal_name, GVariant *params, + gpointer user_data) { + set_current_im(dbus); + qtb_signal_modules(3); +} + +static void *thread_action(gpointer user_data) { + GMainContext *context = g_main_context_new(); + g_main_context_push_thread_default(context); + GError *err = NULL; + GDBusConnection *dbus = g_bus_get_sync(G_BUS_TYPE_SESSION, NULL, &err); + if (err) { + qtb_log("could not connect to fcitx on dbus: %s", err->message); + qtb_die(); + } + set_current_im(dbus); + qtb_signal_modules(3); + g_dbus_connection_signal_subscribe( + dbus, NULL, "org.freedesktop.DBus.Properties", "PropertiesChanged", + "/inputmethod", "org.fcitx.Fcitx.InputMethod", G_DBUS_SIGNAL_FLAGS_NONE, + &im_changed_callback, NULL, NULL); + GMainLoop *main_loop = g_main_loop_new(context, FALSE); + g_main_loop_run(main_loop); + return NULL; +} + +void fcitx4_module_init() { + g_thread_new("fcitx-module", &thread_action, NULL); +} + +char *fcitx4_module_poll() { + const char *symbol; + if (current_im) { + symbol = current_im->symbol; + } else { + symbol = "？"; + } + size_t sym_len = strlen(symbol); + char *output = qtb_malloc(sizeof(" ") + sym_len); + sprintf(output, " %s", symbol); + return output; +} diff --git a/modules/fcitx4.h b/modules/fcitx4.h new file mode 100644 index 0000000..4330191 --- /dev/null +++ b/modules/fcitx4.h @@ -0,0 +1,2 @@ +extern void fcitx4_module_init(void); +extern char *fcitx4_module_poll(void); diff --git a/modules/linuxnm.c b/modules/linuxnm.c new file mode 100644 index 0000000..b00cf1e --- /dev/null +++ b/modules/linuxnm.c @@ -0,0 +1,96 @@ +#include "linuxnm.h" +#include "../util.h" + +#include +#include +#include + +#define TYPE_NO_MANAGER 0x1 +#define TYPE_WIRED 0x2 +#define TYPE_WIRELESS 0x4 +#define TYPE_VPN 0x8 + +typedef int connection_type; + +static connection_type active_types; + +static int is_connection_vpn(NMConnection *connection) { + if (nm_connection_get_setting_vpn(connection)) { + return TRUE; + } + const char *type = nm_connection_get_connection_type(connection); + return strcmp(type, "wireguard") == 0; +} + +static void update_connections(NMClient *client) { + const GPtrArray *active_connections = + nm_client_get_active_connections(client); + guint i; + for (i = 0; i < active_connections->len; ++i) { + NMActiveConnection *current_active = + g_ptr_array_index(active_connections, i); + NMConnection *current = + NM_CONNECTION(nm_active_connection_get_connection(current_active)); + const char *type = nm_connection_get_connection_type(current); + if (is_connection_vpn(current)) { + active_types |= TYPE_VPN; + } else if (nm_connection_get_setting_wired(current)) { + active_types |= TYPE_WIRED; + } else if (nm_connection_get_setting_wireless(current)) { + active_types |= TYPE_WIRELESS; + } + } +} + +static void connections_changed(NMClient *client, GParamSpec *pspec, + gpointer user_data) { + active_types = 0; + if (!nm_client_get_nm_running(client)) { + active_types = TYPE_NO_MANAGER; + } else { + update_connections(client); + } + qtb_signal_modules(2); +} + +static void *thread_action(gpointer user_data) { + GMainContext *context = g_main_context_new(); + g_main_context_push_thread_default(context); + GError *err = NULL; + NMClient *client = nm_client_new(NULL, &err); + if (err) { + return err->message; + } + g_signal_connect(client, "notify::" NM_CLIENT_ACTIVE_CONNECTIONS, + G_CALLBACK(connections_changed), NULL); + g_signal_connect(client, "notify::" NM_CLIENT_NM_RUNNING, + G_CALLBACK(connections_changed), NULL); + connections_changed(client, NULL, NULL); + GMainLoop *main_loop = g_main_loop_new(context, FALSE); + g_main_loop_run(main_loop); + return NULL; +} + +void linuxnm_module_init() { + g_thread_new("network-module", &thread_action, NULL); +} + +char *linuxnm_module_poll() { + char *output = qtb_calloc(8, 1); + if ((active_types & TYPE_NO_MANAGER) == TYPE_NO_MANAGER) { + strcat(output, "ﳤ"); + } + if ((active_types & TYPE_VPN) == TYPE_VPN) { + strcat(output, "嬨"); + } + if ((active_types & TYPE_WIRED) == TYPE_WIRED) { + strcat(output, ""); + } + if ((active_types & TYPE_WIRELESS) == TYPE_WIRELESS) { + strcat(output, "直"); + } + if (active_types == 0) { /* no valid connections found */ + strcat(output, ""); + } + return output; +} diff --git a/modules/linuxnm.h b/modules/linuxnm.h new file mode 100644 index 0000000..4d24914 --- /dev/null +++ b/modules/linuxnm.h @@ -0,0 +1,2 @@ +extern void linuxnm_module_init(void); +extern char *linuxnm_module_poll(void); diff --git a/modules/optimus.c b/modules/optimus.c new file mode 100644 index 0000000..b4856ca --- /dev/null +++ b/modules/optimus.c @@ -0,0 +1,44 @@ +#include "optimus.h" +#include "../util.h" + +#include + +static const char *card_string; + +void optimus_module_init() { + int status = system("card_status=\"`optimus-manager --status 2>/dev/null | " + "grep -Po '(?<=Current GPU mode : )[a-z]'`\"\n" + "case \"$card_status\" in\n" + " 'i')\n" + " exit 1\n" + " ;;\n" + " 'h')\n" + " exit 2\n" + " ;;\n" + " 'n')\n" + " exit 3\n" + " ;;\n" + " *)\n" + " exit 4\n" + " ;;\n" + "esac\n"); + switch (WEXITSTATUS(status)) { + case 1: + card_string = " Ｉ"; + break; + case 2: + card_string = " Ｈ"; + break; + case 3: + card_string = " Ｎ"; + break; + /* case 4: */ + default: + card_string = " ？"; + break; + } +} + +char *optimus_module_poll() { + return qtb_strdup(card_string); +} diff --git a/modules/optimus.h b/modules/optimus.h new file mode 100644 index 0000000..31d3a41 --- /dev/null +++ b/modules/optimus.h @@ -0,0 +1,2 @@ +extern void optimus_module_init(void); +extern char *optimus_module_poll(void); diff --git a/modules/oss.c b/modules/oss.c new file mode 100644 index 0000000..d38ab6e --- /dev/null +++ b/modules/oss.c @@ -0,0 +1,63 @@ +#include "oss.h" +#include "../util.h" + +#include +#include +#include +#include + +typedef struct { + int fd; + int pcm; + int vol; + int mute; +} mixer_data; + +static mixer_data main_mixer; + +#define ioctl_checked(fd, request, arg) _ioctl_checked(fd, request, #request, arg) +static void _ioctl_checked(int fd, unsigned long request, const char *rq_name, void *arg) { + if (ioctl(fd, request, arg) < 0) { + qtb_log("ioctl request %s failed", rq_name); + qtb_die(); + } +} + +static void open_mixer(const char *path, mixer_data *mixer) { + mixer->fd = open(path, O_RDONLY); + if (mixer->fd < 0) { + qtb_log("could not open mixer '%s'", path); + qtb_die(); + } +} + +static void read_mixer(mixer_data *mixer) { + ioctl_checked(mixer->fd, SOUND_MIXER_READ_PCM, &mixer->pcm); + mixer->pcm >>= 8; + ioctl_checked(mixer->fd, SOUND_MIXER_READ_VOLUME, &mixer->vol); + mixer->vol >>= 8; + mixer->mute = !(mixer->vol * mixer->pcm); +} + +void oss_module_init() { + open_mixer("/dev/mixer", &main_mixer); +} + +static const char *get_volume_icon(int volume, int mute) { + if (mute) { + return "ﱝ"; + } else if (volume > 50) { + return "墳"; + } else if (volume > 0) { + return "奔"; + } + return "奄"; +} + +char *oss_module_poll() { + read_mixer(&main_mixer); + const char *icon = get_volume_icon(main_mixer.vol, main_mixer.mute); + char *buff = qtb_malloc(32); + sprintf(buff, "%s%3d%%",icon, main_mixer.vol); + return buff; +} diff --git a/modules/oss.h b/modules/oss.h new file mode 100644 index 0000000..f6aa5ee --- /dev/null +++ b/modules/oss.h @@ -0,0 +1,2 @@ +extern void oss_module_init(void); +extern char *oss_module_poll(void); diff --git a/modules/pulse.c b/modules/pulse.c new file mode 100644 index 0000000..883cf97 --- /dev/null +++ b/modules/pulse.c @@ -0,0 +1,132 @@ +#include "pulse.h" +#include "../util.h" + +#include +#include +#include +#include +#include + +#define CONTEXT_NAME "quick-text-bar-audio" + +#define CONTEXT_CONNECTING 0 +#define CONTEXT_CONNECTED 1 +#define CONTEXT_FAILED 2 + +static pa_threaded_mainloop *mainloop; +static pa_mainloop_api *mainloop_api; +static pa_context *context; +static int volume; +static int mute; + +static void sink_info_callback(pa_context *ctx, const pa_sink_info *info, + int eol, void *user_data) { + if (info) { + pa_volume_t arg = pa_cvolume_avg(&info->volume); + float float_volume = ((float)arg / (float)PA_VOLUME_NORM) * 100.0f; + int new_volume = round(float_volume); + if (mute != info->mute || volume != new_volume) { + mute = info->mute; + volume = new_volume; + qtb_signal_modules(1); + } + } +} + +static void server_info_callback(pa_context *ctx, const pa_server_info *info, + void *user_data) { + pa_operation *op = pa_context_get_sink_info_by_name( + ctx, info->default_sink_name, &sink_info_callback, NULL); + pa_operation_unref(op); +} + +static void subscribe_callback(pa_context *ctx, + pa_subscription_event_type_t type, uint32_t idx, + void *user_data) { + unsigned int facility = type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK; + pa_operation *op = NULL; + switch (facility) { + case PA_SUBSCRIPTION_EVENT_SINK: + op = pa_context_get_sink_info_by_index(ctx, idx, &sink_info_callback, + NULL); + break; + default: + break; + } + if (op) { + pa_operation_unref(op); + } +} + +static void state_callback(pa_context *ctx, void *user_data) { + pa_operation *op; + switch (pa_context_get_state(ctx)) { + case PA_CONTEXT_READY: + op = pa_context_get_server_info(ctx, &server_info_callback, NULL); + pa_operation_unref(op); + pa_context_set_subscribe_callback(ctx, &subscribe_callback, NULL); + op = pa_context_subscribe(ctx, PA_SUBSCRIPTION_MASK_SINK, NULL, NULL); + pa_operation_unref(op); + break; + case PA_CONTEXT_FAILED: + volume = -1; + qtb_signal_modules(1); + break; + default: + break; + } +} + +void pulse_module_init() { + mainloop = pa_threaded_mainloop_new(); + if (!mainloop) { + qtb_log("could not create mainloop"); + qtb_die(); + } + mainloop_api = pa_threaded_mainloop_get_api(mainloop); + if (!mainloop_api) { + qtb_log("could not get api"); + qtb_die(); + } + context = pa_context_new(mainloop_api, CONTEXT_NAME); + if (!context) { + qtb_log("could not create context"); + qtb_die(); + } + pa_context_set_state_callback( + context, (pa_context_notify_cb_t)&state_callback, NULL); + if (pa_context_connect(context, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL) < 0) { + qtb_log("could not connect"); + qtb_die(); + } + if (pa_threaded_mainloop_start(mainloop) < 0) { + qtb_log("could not start mainloop"); + qtb_die(); + } +} + +static const char *get_volume_icon() { + if (mute) { + return "ﱝ"; + } else if (volume > 50) { + return "墳"; + } else if (volume > 0) { + return "奔"; + } + return "奄"; +} + +char *pulse_module_poll() { + char *output = qtb_calloc(32, 1); + if (volume < 0) { /* not connected */ + sprintf(output, "ﱝ ??%%"); + pa_threaded_mainloop_stop( + mainloop); /* free the old mainloop and reset this module */ + pa_threaded_mainloop_free(mainloop); + pulse_module_init(); + } else { + const char *volume_icon = get_volume_icon(); + sprintf(output, "%s%3d%%", volume_icon, volume); + } + return output; +} diff --git a/modules/pulse.h b/modules/pulse.h new file mode 100644 index 0000000..881aa84 --- /dev/null +++ b/modules/pulse.h @@ -0,0 +1,3 @@ +/* an example module that produces the current system volume */ +extern void pulse_module_init(void); +extern char *pulse_module_poll(void); diff --git a/modules/time.c b/modules/time.c new file mode 100644 index 0000000..c86df1a --- /dev/null +++ b/modules/time.c @@ -0,0 +1,21 @@ +#include "time.h" +#include "../util.h" + +#include +#include +#include + +#define TIME_STRING_SIZE 64 +#define TIME_FORMAT " %a %b %d  %R" + +char *time_module_poll() { + time_t time_num = time(NULL); + struct tm time_tm; + localtime_r(&time_num, &time_tm); + char *output = qtb_malloc(TIME_STRING_SIZE); + int result = strftime(output, TIME_STRING_SIZE, TIME_FORMAT, &time_tm); + if (result == 0) { + strcpy(output, " ?? ?? ??  ??:??"); + } + return output; +} diff --git a/modules/time.h b/modules/time.h new file mode 100644 index 0000000..d6fcff4 --- /dev/null +++ b/modules/time.h @@ -0,0 +1,3 @@ +/* an example module that produces the current time */ + +extern char *time_module_poll(void); diff --git a/quick-text-bar.1.in b/quick-text-bar.1.in new file mode 100644 index 0000000..60ff157 --- /dev/null +++ b/quick-text-bar.1.in @@ -0,0 +1,53 @@ +.TH QUICK-TEXT-BAR 1 "" "quick-text-bar v${QTB_VERSION}" +.SH NAME +quick-text-bar \- a fast and customizable text based bar +.SH SYNOPSIS +.B quick-text-bar +[\fB\-h\fR] +[\fB\-v\fR] +[\fB\-i\fR] +[\fB\-n\fR \fIMODULES\fR] +[\fB\-d\fR \fIDISPLAY\fR] +[\fB\-r\fR] +[\fB\-s\fR] +.SH DESCRIPTION +quick-text-bar(1) is a fast and customizable bar for use with +X window managers such as dwm. It uses an extensible module +system to define what the bar looks like. Some of the options +described here will change based on compile time switches. +Use the \-h option to check these. +.SH OPTIONS +.PP +\fB\-h\fR +.RS 4 +show this message, then exit +.RE +.PP +\fB\-v\fR +.RS 4 +print version, then exit +.RE +.PP +\fB\-i\fR +.RS 4 +print version and module informaton, then exit +.RE +.PP +\fB\-n\fR \fIMODULES\fR +.RS 4 +semi-colon seperated list of modules to disable +.RE +.PP +\fB\-d\fR \fIDISPLAY\fR +.RS 4 +the X display to use when setting the root window name +.RE +.PP +\fB\-r\fR +.RS 4 +set the X root window name when updating the bar +.RE +.PP +\fB\-s\fR +.RS 4 +write to stdout when updating the bar diff --git a/scripts/arch/PKGBUILD b/scripts/arch/PKGBUILD new file mode 100644 index 0000000..af21829 --- /dev/null +++ b/scripts/arch/PKGBUILD @@ -0,0 +1,31 @@ +# Maintainer: Alexander Rosenberg + +pkgname=quick-text-bar +pkgver=1.0.0 +pkgrel=1 +pkgdesc='A fast and customizable text based bar.' +arch=('x86_64') +license=('GPL3') +depends=('glib2' 'optimus-manager' 'bluez' 'networkmanager' 'dbus' 'pulseaudio') +makedepends=('cmake' 'git') +url='https://gitlab.com/Zander671/quick-text-bar.git' +source=("git+https://gitlab.com/Zander671/quick-text-bar.git" 'config.h' 'config.cmake') +sha256sums=('SKIP' 'SKIP' 'SKIP') + +pkgver(){ + cd "$pkgname" + git rev-list --count HEAD +} + +build() { + cp config.h config.cmake "$pkgname" + cmake -B build -S "$pkgname" + cmake --build build +} + +package() { + install --mode 0644 -D --target-directory "$pkgdir/usr/share/licenses/$pkgname" "$pkgname/LICENSE" + install --mode 0644 -D --target-directory "$pkgdir/usr/share/doc/$pkgname" "$pkgname/README.md" + install --mode 0644 -D --target-directory "$pkgdir/usr/share/man/man1" "build/quick-text-bar.1" + install --mode 0755 -D --target-directory "$pkgdir/usr/bin" "build/quick-text-bar" +} diff --git a/util.h b/util.h new file mode 100644 index 0000000..2ff3ccb --- /dev/null +++ b/util.h @@ -0,0 +1,32 @@ +#ifndef _INCLUDED_MODULE_API_H +#define _INCLUDED_MODULE_API_H + +#include + +#ifdef FALSE +#undef FALSE +#endif +#define FALSE 0 +#ifdef TRUE +#undef TRUE +#endif +#define TRUE 1 + +/* execute an external program and return its exit code */ +extern void _qtb_internal_log(const char *fmt, ...); +#define qtb_log(...) _qtb_internal_log("module - " __FILE__ ": " __VA_ARGS__); +extern void qtb_die(void); +extern void qtb_signal_modules(int sig); +extern void *qtb_malloc(size_t size); +extern void *qtb_calloc(size_t n, size_t size); +extern void *qtb_realloc(void *ptr, size_t size); +extern char *qtb_strdup(const char *str); +extern void qtb_free(void *ptr); +#ifdef HAS_X11 +#include +/* get the X display specified by the command line or DISPLAY + environemnt variable */ +extern Display *qtb_get_x_display(void); +#endif + +#endif