163 lines
3.4 KiB
C
163 lines
3.4 KiB
C
#include <stdlib.h>
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#define _MILSKO
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#define USE_X11
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#include "mdm.h"
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#include "stb_ds.h"
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static pid_t xserver;
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static int got_usr1;
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Display* xdisplay;
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pthread_t xthread;
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pthread_mutex_t xmutex;
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static void catch_usr1(int sig) {
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(void)sig;
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got_usr1 = 1;
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}
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int launch_x(void) {
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got_usr1 = 0;
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signal(SIGUSR1, catch_usr1);
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if((xserver = fork()) == 0) {
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signal(SIGUSR1, SIG_IGN);
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execlp("X", "X", ":0", NULL);
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_exit(-1);
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} else {
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while(!got_usr1) {
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if(waitpid(xserver, NULL, WNOHANG) != 0) {
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fprintf(stderr, "server died. what happened?\n");
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return 1;
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}
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usleep(1000);
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}
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}
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setenv("DISPLAY", ":0", 1);
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return 0;
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}
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static int wm_detected = 0;
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static int wm_detect(Display* disp, XErrorEvent* ev) {
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(void)disp;
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(void)ev;
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wm_detected = 1;
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}
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static void* x11_thread_routine(void* arg) {
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loop_x();
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XCloseDisplay(xdisplay);
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}
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int init_x(void) {
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XColor bg;
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void* old;
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xdisplay = XOpenDisplay(NULL);
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bg.red = 0x1c * 256;
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bg.green = 0x45 * 256;
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bg.blue = 0x73 * 256;
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XAllocColor(xdisplay, DefaultColormap(xdisplay, DefaultScreen(xdisplay)), &bg);
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XSetWindowBackground(xdisplay, DefaultRootWindow(xdisplay), bg.pixel);
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XClearWindow(xdisplay, DefaultRootWindow(xdisplay));
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XFlush(xdisplay);
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old = XSetErrorHandler(wm_detect);
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XSelectInput(xdisplay, DefaultRootWindow(xdisplay), SubstructureRedirectMask);
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XSync(xdisplay, False);
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XSetErrorHandler(old);
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if(wm_detected) {
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fprintf(stderr, "WM or something seem to be running\n");
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return 1;
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}
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pthread_mutex_init(&xmutex, NULL);
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pthread_create(&xthread, NULL, x11_thread_routine, NULL);
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return 0;
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}
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int x_width(void) {
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return DisplayWidth(xdisplay, DefaultScreen(xdisplay));
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}
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int x_height(void) {
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return DisplayHeight(xdisplay, DefaultScreen(xdisplay));
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}
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typedef struct window {
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MwWidget frame;
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Window client;
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} window_t;
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void loop_x(void) {
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XEvent ev;
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window_t* frames = NULL;
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while(1) {
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XNextEvent(xdisplay, &ev);
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if(ev.type == MapRequest) {
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XWindowAttributes xwa;
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window_t w;
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int i;
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pthread_mutex_lock(&xmutex);
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for(i = 0; i < arrlen(frames); i++) {
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if(frames[i].frame->lowlevel->x11.window == ev.xmaprequest.window) {
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XReparentWindow(xdisplay, frames[i].client, frames[i].frame->lowlevel->x11.window, MwDefaultBorderWidth(root), MwDefaultBorderWidth(root));
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XMapWindow(xdisplay, ev.xmaprequest.window);
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XMapWindow(xdisplay, frames[i].client);
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break;
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}
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}
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if(i != arrlen(frames)) {
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pthread_mutex_unlock(&xmutex);
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continue;
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}
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XGetWindowAttributes(xdisplay, ev.xmaprequest.window, &xwa);
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w.client = ev.xmaprequest.window;
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w.frame = MwVaCreateWidget(MwWindowClass, "frame", root, xwa.x - MwDefaultBorderWidth(root), xwa.y - MwDefaultBorderWidth(root), xwa.width + MwDefaultBorderWidth(root) * 2, xwa.height + MwDefaultBorderWidth(root) * 2,
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MwNhasBorder, 1,
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MwNinverted, 0,
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NULL);
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XSelectInput(xdisplay, w.client, StructureNotifyMask);
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arrput(frames, w);
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pthread_mutex_unlock(&xmutex);
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} else if(ev.type == UnmapNotify) {
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int i;
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int c = 0;
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pthread_mutex_lock(&xmutex);
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for(i = 0; i < arrlen(frames); i++) {
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if(frames[i].client == ev.xunmap.window) {
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MwDestroyWidget(frames[i].frame);
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arrdel(frames, i);
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c = 1;
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break;
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}
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}
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pthread_mutex_unlock(&xmutex);
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if(c) break;
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}
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}
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}
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void kill_x(void) {
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kill(xserver, SIGINT);
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waitpid(xserver, NULL, 0);
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}
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