121 lines
2.2 KiB
C
121 lines
2.2 KiB
C
#include "status.h"
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#include "atoms.h"
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#include "datetime.h"
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#include <pthread.h>
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#include <stdio.h>
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#include <string.h>
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#include <X11/Xlib.h>
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#define EXTERNAL_BUFFER_SIZE 256
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#define BUFFER_SIZE (EXTERNAL_BUFFER_SIZE + 3 + DATETIME_BUFFER_SIZE)
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static void update();
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static pthread_mutex_t mutex;
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static bool running = false;
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static Display *display = None;
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static Atoms atoms = NULL;
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static char buffer[BUFFER_SIZE];
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static char external_buffer[EXTERNAL_BUFFER_SIZE];
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static char datetime_buffer[DATETIME_BUFFER_SIZE];
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void status_lock()
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{
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pthread_mutex_lock(&mutex);
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}
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void status_unlock()
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{
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pthread_mutex_unlock(&mutex);
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}
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const char *status_get()
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{
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return buffer;
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}
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bool status_start()
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{
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status_lock();
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if (running) return false;
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running = true;
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memset(buffer, 0, sizeof(buffer));
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memset(external_buffer, 0, sizeof(external_buffer));
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memset(datetime_buffer, 0, sizeof(datetime_buffer));
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if ((display = XOpenDisplay(NULL)) == NULL) return false;
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if ((atoms = atoms_create(display)) == NULL) return false;
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status_unlock();
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return true;
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}
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void status_stop()
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{
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status_lock();
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if (!running) return;
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running = false;
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if (atoms != NULL) atoms_destroy(atoms);
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if (display != None) XCloseDisplay(display);
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status_unlock();
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}
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void status_set_external(const char *const text)
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{
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status_lock();
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strncpy(external_buffer, text, EXTERNAL_BUFFER_SIZE);
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external_buffer[EXTERNAL_BUFFER_SIZE - 1] = '\0';
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update();
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status_unlock();
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}
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void status_set_datetime(const char *const text)
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{
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status_lock();
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strncpy(datetime_buffer, text, DATETIME_BUFFER_SIZE);
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datetime_buffer[DATETIME_BUFFER_SIZE - 1] = '\0';
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update();
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status_unlock();
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}
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static void update()
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{
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sprintf(buffer, "%s | %s", external_buffer, datetime_buffer);
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XEvent event;
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memset(&event, 0, sizeof(event));
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event.xclient.type = ClientMessage;
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event.xclient.serial = 0;
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event.xclient.send_event = True;
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event.xclient.display = display;
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event.xclient.window = DefaultRootWindow(display);
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event.xclient.message_type = atoms->netatom[NetStatusUpdate];
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event.xclient.format = 32;
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XSendEvent(
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display,
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event.xclient.window,
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False,
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SubstructureRedirectMask | SubstructureNotifyMask,
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&event
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);
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XFlush(display);
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}
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