727 lines
19 KiB
C
727 lines
19 KiB
C
#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <X11/Xproto.h>
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#include <X11/extensions/shape.h>
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#include <X11/extensions/Xrender.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#define WIDTH 512
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#define HEIGHT 384
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#define OPAQUE 0xffffffff
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#define NAME "xwinwrap"
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#define ATOM(a) XInternAtom(display, #a, False)
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Display *display = NULL;
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int display_width;
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int display_height;
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int screen;
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typedef enum
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{
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SHAPE_RECT = 0,
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SHAPE_CIRCLE,
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SHAPE_TRIG,
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} win_shape;
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struct window {
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Window root, window, desktop;
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Drawable drawable;
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Visual *visual;
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Colormap colourmap;
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unsigned int width;
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unsigned int height;
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int x;
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int y;
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} window;
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bool debug = false;
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static pid_t pid = 0;
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static char **childArgv = 0;
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static int nChildArgv = 0;
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static int addArguments (char **argv, int n)
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{
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char **newArgv;
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int i;
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newArgv = realloc (childArgv, sizeof (char *) * (nChildArgv + n));
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if (!newArgv)
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return 0;
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for (i = 0; i < n; i++)
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newArgv[nChildArgv + i] = argv[i];
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childArgv = newArgv;
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nChildArgv += n;
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return n;
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}
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static void setWindowOpacity (unsigned int opacity)
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{
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CARD32 o;
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o = opacity;
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XChangeProperty (display, window.window, ATOM(_NET_WM_WINDOW_OPACITY),
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XA_CARDINAL, 32, PropModeReplace,
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(unsigned char *) &o, 1);
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}
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static void init_x11()
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{
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display = XOpenDisplay (NULL);
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if (!display)
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{
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fprintf (stderr, NAME": Error: couldn't open display\n");
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return;
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}
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screen = DefaultScreen(display);
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display_width = DisplayWidth(display, screen);
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display_height = DisplayHeight(display, screen);
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}
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static int get_argb_visual(Visual** visual, int *depth) {
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XVisualInfo visual_template;
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XVisualInfo *visual_list;
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int nxvisuals = 0, i;
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visual_template.screen = screen;
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visual_list = XGetVisualInfo (display, VisualScreenMask,
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&visual_template, &nxvisuals);
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for (i = 0; i < nxvisuals; i++) {
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if (visual_list[i].depth == 32 &&
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(visual_list[i].red_mask == 0xff0000 &&
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visual_list[i].green_mask == 0x00ff00 &&
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visual_list[i].blue_mask == 0x0000ff)) {
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*visual = visual_list[i].visual;
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*depth = visual_list[i].depth;
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if (debug)
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fprintf(stderr, "Found ARGB Visual\n");
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XFree(visual_list);
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return 1;
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}
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}
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if (debug)
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fprintf(stderr, "No ARGB Visual found");
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XFree(visual_list);
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return 0;
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}
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static void sigHandler (int sig)
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{
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kill (pid, sig);
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}
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static void usage (void)
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{
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fprintf(stderr, "%s \n", NAME);
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fprintf (stderr, "\nUsage: %s [-g {w}x{h}+{x}+{y}] [-ni] [-argb] [-fs] [-s] [-st] [-sp] [-a] "
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"[-b] [-nf] [-o OPACITY] [-sh SHAPE] [-ov]-- COMMAND ARG1...\n", NAME);
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fprintf (stderr, "Options:\n \
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-g - Specify Geometry (w=width, h=height, x=x-coord, y=y-coord. ex: -g 640x480+100+100)\n \
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-ni - Ignore Input\n \
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-argb - RGB\n \
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-fs - Full Screen\n \
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-un - Undecorated\n \
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-s - Sticky\n \
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-st - Skip Taskbar\n \
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-sp - Skip Pager\n \
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-a - Above\n \
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-b - Below\n \
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-nf - No Focus\n \
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-o - Opacity value between 0 to 1 (ex: -o 0.20)\n \
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-sh - Shape of window (choose between rectangle, circle or triangle. Default is rectangle)\n \
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-ov - Set override_redirect flag (For seamless desktop background integration in non-fullscreenmode)\n \
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-debug - Enable debug messages\n");
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}
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static Window find_subwindow(Window win, int w, int h)
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{
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unsigned int i, j;
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Window troot, parent, *children;
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unsigned int n;
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/* search subwindows with same size as display or work area */
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for (i = 0; i < 10; i++) {
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XQueryTree(display, win, &troot, &parent, &children, &n);
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for (j = 0; j < n; j++) {
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XWindowAttributes attrs;
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if (XGetWindowAttributes(display, children[j], &attrs)) {
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/* Window must be mapped and same size as display or
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* work space */
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if (attrs.map_state != 0 && ((attrs.width == display_width
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&& attrs.height == display_height)
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|| (attrs.width == w && attrs.height == h))) {
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win = children[j];
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break;
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}
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}
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}
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XFree(children);
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if (j == n) {
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break;
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}
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}
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return win;
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}
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static Window find_desktop_window(Window *p_root, Window *p_desktop)
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{
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Atom type;
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int format, i;
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unsigned long nitems, bytes;
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unsigned int n;
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Window root = RootWindow(display, screen);
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Window win = root;
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Window troot, parent, *children;
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unsigned char *buf = NULL;
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if (!p_root || !p_desktop) {
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return 0;
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}
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/* some window managers set __SWM_VROOT to some child of root window */
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XQueryTree(display, root, &troot, &parent, &children, &n);
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for (i = 0; i < (int) n; i++) {
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if (XGetWindowProperty(display, children[i], ATOM(__SWM_VROOT), 0, 1,
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False, XA_WINDOW, &type, &format, &nitems, &bytes, &buf)
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== Success && type == XA_WINDOW) {
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win = *(Window *) buf;
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XFree(buf);
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XFree(children);
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if (debug)
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{
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fprintf(stderr,
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NAME": desktop window (%lx) found from __SWM_VROOT property\n",
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win);
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}
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fflush(stderr);
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*p_root = win;
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*p_desktop = win;
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return win;
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}
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if (buf) {
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XFree(buf);
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buf = 0;
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}
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}
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XFree(children);
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/* get subwindows from root */
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win = find_subwindow(root, -1, -1);
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display_width = DisplayWidth(display, screen);
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display_height = DisplayHeight(display, screen);
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win = find_subwindow(win, display_width, display_height);
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if (buf) {
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XFree(buf);
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buf = 0;
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}
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if (win != root && debug) {
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fprintf(stderr,
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NAME": desktop window (%lx) is subwindow of root window (%lx)\n",
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win, root);
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} else if (debug) {
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fprintf(stderr, NAME": desktop window (%lx) is root window\n", win);
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}
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fflush(stderr);
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*p_root = root;
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*p_desktop = win;
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return win;
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}
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int main(int argc, char **argv)
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{
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char widArg[256];
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char *widArgv[] = { widArg };
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char *endArg = NULL;
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int status = 0;
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unsigned int opacity = OPAQUE;
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int i;
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bool have_argb_visual = false;
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bool noInput = false;
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bool argb = false;
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bool fullscreen = false;
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bool noFocus = false;
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bool override = false;
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bool undecorated = false;
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bool sticky = false;
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bool below = false;
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bool above = false;
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bool skip_taskbar = false;
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bool skip_pager = false;
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bool daemonize = false;
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win_shape shape = SHAPE_RECT;
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Pixmap mask;
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GC mask_gc;
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XGCValues xgcv;
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window.width = WIDTH;
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window.height = HEIGHT;
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for (i = 1; i < argc; i++)
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{
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if (strcmp (argv[i], "-g") == 0)
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{
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if (++i < argc)
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XParseGeometry (argv[i], &window.x, &window.y, &window.width, &window.height);
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}
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else if (strcmp (argv[i], "-ni") == 0)
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{
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noInput = 1;
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}
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else if (strcmp (argv[i], "-argb") == 0)
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{
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argb = true;
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}
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else if (strcmp (argv[i], "-fs") == 0)
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{
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fullscreen = 1;
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}
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else if (strcmp (argv[i], "-un") == 0)
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{
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undecorated = true;
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}
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else if (strcmp (argv[i], "-s") == 0)
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{
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sticky = true;
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}
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else if (strcmp (argv[i], "-st") == 0)
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{
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skip_taskbar = true;
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}
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else if (strcmp (argv[i], "-sp") == 0)
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{
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skip_pager = true;
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}
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else if (strcmp (argv[i], "-a") == 0)
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{
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above = true;
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}
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else if (strcmp (argv[i], "-b") == 0)
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{
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below = true;
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}
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else if (strcmp (argv[i], "-nf") == 0)
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{
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noFocus = 1;
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}
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else if (strcmp (argv[i], "-o") == 0)
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{
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if (++i < argc)
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opacity = (unsigned int) (atof (argv[i]) * OPAQUE);
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}
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else if (strcmp (argv[i], "-sh") == 0)
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{
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if (++i < argc)
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{
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if (strcasecmp(argv[i], "circle") == 0)
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{
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shape = SHAPE_CIRCLE;
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}
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else if (strcasecmp(argv[i], "triangle") == 0)
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{
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shape = SHAPE_TRIG;
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}
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}
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}
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else if (strcmp (argv[i], "-ov") == 0)
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{
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override = true;
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}
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else if (strcmp (argv[i], "-debug") == 0)
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{
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debug = true;
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}
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else if (strcmp (argv[i], "-d") == 0)
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{
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daemonize = true;
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}
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else if (strcmp (argv[i], "--") == 0)
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{
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break;
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}
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else
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{
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usage ();
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return 1;
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}
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}
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if (daemonize)
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{
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pid_t process_id = 0;
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pid_t sid = 0;
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process_id = fork();
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if (process_id < 0)
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{
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fprintf(stderr, "fork failed!\n");
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exit(1);
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}
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if (process_id > 0)
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{
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fprintf(stderr, "pid of child process %d \n", process_id);
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exit(0);
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}
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umask(0);
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sid = setsid();
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if (sid < 0)
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{
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exit(1);
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}
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chdir("/");
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close(STDIN_FILENO);
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close(STDOUT_FILENO);
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close(STDERR_FILENO);
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}
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for (i = i + 1; i < argc; i++)
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{
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if (strcmp (argv[i], "WID") == 0)
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addArguments (widArgv, 1);
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else
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addArguments (&argv[i], 1);
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}
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if (!nChildArgv)
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{
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fprintf (stderr, "%s: Error: couldn't create command line\n", argv[0]);
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usage ();
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return 1;
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}
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addArguments (&endArg, 1);
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init_x11();
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if (!display)
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return 1;
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if (fullscreen)
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{
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window.x = 0;
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window.y = 0;
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window.width = DisplayWidth (display, screen);
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window.height = DisplayHeight (display, screen);
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}
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int depth = 0, flags = CWOverrideRedirect | CWBackingStore;
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Visual *visual = NULL;
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if (!find_desktop_window(&window.root, &window.desktop)) {
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fprintf (stderr, NAME": Error: couldn't find desktop window\n");
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return 1;
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}
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if (argb && get_argb_visual(&visual, &depth))
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{
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have_argb_visual = true;
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window.visual = visual;
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window.colourmap = XCreateColormap(display,
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DefaultRootWindow(display), window.visual, AllocNone);
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}
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else
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{
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window.visual = DefaultVisual(display, screen);
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window.colourmap = DefaultColormap(display, screen);
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depth = CopyFromParent;
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visual = CopyFromParent;
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}
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if (override) {
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/* An override_redirect True window.
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* No WM hints or button processing needed. */
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XSetWindowAttributes attrs = { ParentRelative, 0L, 0, 0L, 0, 0,
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Always, 0L, 0L, False, StructureNotifyMask | ExposureMask, 0L,
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True, 0, 0
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};
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if (have_argb_visual)
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{
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attrs.colormap = window.colourmap;
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flags |= CWBorderPixel | CWColormap;
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}
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else
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{
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flags |= CWBackPixel;
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}
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window.window = XCreateWindow(display, window.desktop, window.x,
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window.y, window.width, window.height, 0, depth, InputOutput, visual,
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flags, &attrs);
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XLowerWindow(display, window.window);
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fprintf(stderr, NAME": window type - override\n");
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fflush(stderr);
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}
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else
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{
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XSetWindowAttributes attrs = { ParentRelative, 0L, 0, 0L, 0, 0,
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Always, 0L, 0L, False, StructureNotifyMask | ExposureMask |
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ButtonPressMask | ButtonReleaseMask, 0L, False, 0, 0
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};
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XWMHints wmHint;
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Atom xa;
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if (have_argb_visual)
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{
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attrs.colormap = window.colourmap;
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flags |= CWBorderPixel | CWColormap;
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}
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else
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{
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flags |= CWBackPixel;
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}
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window.window = XCreateWindow(display, window.root, window.x,
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window.y, window.width, window.height, 0, depth, InputOutput, visual,
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flags, &attrs);
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wmHint.flags = InputHint | StateHint;
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// wmHint.input = undecorated ? False : True;
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wmHint.input = !noFocus;
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wmHint.initial_state = NormalState;
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XSetWMProperties(display, window.window, NULL, NULL, argv,
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argc, NULL, &wmHint, NULL);
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xa = ATOM(_NET_WM_WINDOW_TYPE);
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Atom prop;
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prop = ATOM(_NET_WM_WINDOW_TYPE_NORMAL);
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XChangeProperty(display, window.window, xa, XA_ATOM, 32,
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PropModeReplace, (unsigned char *) &prop, 1);
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if (undecorated) {
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xa = ATOM(_MOTIF_WM_HINTS);
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if (xa != None) {
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long prop[5] = { 2, 0, 0, 0, 0 };
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XChangeProperty(display, window.window, xa, xa, 32,
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PropModeReplace, (unsigned char *) prop, 5);
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}
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}
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/* Below other windows */
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if (below) {
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xa = ATOM(_WIN_LAYER);
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if (xa != None) {
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long prop = 0;
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XChangeProperty(display, window.window, xa, XA_CARDINAL, 32,
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PropModeAppend, (unsigned char *) &prop, 1);
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}
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xa = ATOM(_NET_WM_STATE);
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if (xa != None) {
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Atom xa_prop = ATOM(_NET_WM_STATE_BELOW);
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XChangeProperty(display, window.window, xa, XA_ATOM, 32,
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PropModeAppend, (unsigned char *) &xa_prop, 1);
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}
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}
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/* Above other windows */
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if (above) {
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xa = ATOM(_WIN_LAYER);
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if (xa != None) {
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long prop = 6;
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XChangeProperty(display, window.window, xa, XA_CARDINAL, 32,
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PropModeAppend, (unsigned char *) &prop, 1);
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}
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xa = ATOM(_NET_WM_STATE);
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if (xa != None) {
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Atom xa_prop = ATOM(_NET_WM_STATE_ABOVE);
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XChangeProperty(display, window.window, xa, XA_ATOM, 32,
|
|
PropModeAppend, (unsigned char *) &xa_prop, 1);
|
|
}
|
|
}
|
|
|
|
/* Sticky */
|
|
if (sticky) {
|
|
|
|
xa = ATOM(_NET_WM_DESKTOP);
|
|
if (xa != None) {
|
|
CARD32 xa_prop = 0xFFFFFFFF;
|
|
|
|
XChangeProperty(display, window.window, xa, XA_CARDINAL, 32,
|
|
PropModeAppend, (unsigned char *) &xa_prop, 1);
|
|
}
|
|
|
|
xa = ATOM(_NET_WM_STATE);
|
|
if (xa != None) {
|
|
Atom xa_prop = ATOM(_NET_WM_STATE_STICKY);
|
|
|
|
XChangeProperty(display, window.window, xa, XA_ATOM, 32,
|
|
PropModeAppend, (unsigned char *) &xa_prop, 1);
|
|
}
|
|
}
|
|
|
|
/* Skip taskbar */
|
|
if (skip_taskbar) {
|
|
|
|
xa = ATOM(_NET_WM_STATE);
|
|
if (xa != None) {
|
|
Atom xa_prop = ATOM(_NET_WM_STATE_SKIP_TASKBAR);
|
|
|
|
XChangeProperty(display, window.window, xa, XA_ATOM, 32,
|
|
PropModeAppend, (unsigned char *) &xa_prop, 1);
|
|
}
|
|
}
|
|
|
|
/* Skip pager */
|
|
if (skip_pager) {
|
|
|
|
xa = ATOM(_NET_WM_STATE);
|
|
if (xa != None) {
|
|
Atom xa_prop = ATOM(_NET_WM_STATE_SKIP_PAGER);
|
|
|
|
XChangeProperty(display, window.window, xa, XA_ATOM, 32,
|
|
PropModeAppend, (unsigned char *) &xa_prop, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (opacity != OPAQUE)
|
|
setWindowOpacity (opacity);
|
|
|
|
if (noInput)
|
|
{
|
|
Region region;
|
|
|
|
region = XCreateRegion ();
|
|
if (region)
|
|
{
|
|
XShapeCombineRegion (display, window.window, ShapeInput, 0, 0, region, ShapeSet);
|
|
XDestroyRegion (region);
|
|
}
|
|
}
|
|
|
|
if (shape)
|
|
{
|
|
mask = XCreatePixmap(display, window.window, window.width, window.height, 1);
|
|
mask_gc = XCreateGC(display, mask, 0, &xgcv);
|
|
|
|
switch (shape)
|
|
{
|
|
//Nothing special to be done if it's a rectangle
|
|
case SHAPE_CIRCLE:
|
|
/* fill mask */
|
|
XSetForeground(display, mask_gc, 0);
|
|
XFillRectangle(display, mask, mask_gc, 0, 0, window.width, window.height);
|
|
|
|
XSetForeground(display, mask_gc, 1);
|
|
XFillArc(display, mask, mask_gc, 0, 0, window.width, window.height, 0, 23040);
|
|
break;
|
|
|
|
case SHAPE_TRIG:
|
|
{
|
|
XPoint points[3] = { {0, window.height},
|
|
{window.width / 2, 0},
|
|
{window.width, window.height}
|
|
};
|
|
|
|
XSetForeground(display, mask_gc, 0);
|
|
XFillRectangle(display, mask, mask_gc, 0, 0, window.width, window.height);
|
|
|
|
XSetForeground(display, mask_gc, 1);
|
|
XFillPolygon(display, mask, mask_gc, points, 3, Complex, CoordModeOrigin);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
|
|
}
|
|
/* combine */
|
|
XShapeCombineMask(display, window.window, ShapeBounding, 0, 0, mask, ShapeSet);
|
|
}
|
|
|
|
|
|
|
|
XMapWindow(display, window.window);
|
|
|
|
XSync (display, window.window);
|
|
|
|
sprintf (widArg, "0x%x", (int) window.window);
|
|
|
|
pid = fork ();
|
|
|
|
switch (pid) {
|
|
case -1:
|
|
perror ("fork");
|
|
return 1;
|
|
case 0:
|
|
execvp (childArgv[0], childArgv);
|
|
perror (childArgv[0]);
|
|
exit (2);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
signal (SIGTERM, sigHandler);
|
|
signal (SIGINT, sigHandler);
|
|
|
|
for (;;)
|
|
{
|
|
if (waitpid (pid, &status, 0) != -1)
|
|
{
|
|
if (WIFEXITED (status))
|
|
fprintf (stderr, "%s died, exit status %d\n", childArgv[0],
|
|
WEXITSTATUS (status));
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
XDestroyWindow (display, window.window);
|
|
XCloseDisplay (display);
|
|
|
|
|
|
return 0;
|
|
}
|