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Ujjwal Verma
2017-08-31 00:52:24 +05:30
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# Xwinwrap
My fork of xwinwrap.
Xwinwrap allows you to stick most of the apps to your desktop background.
My use case - can use gif as a background
### Compiling
`gcc -Wall xwinwrap.c -lX11 -lXext -lXrender -g -o xwinwrap`
You may have to use `-L` flag to specify directory for xlib.
e.g. `gcc -Wall xwinwrap.c -L /usr/lib/x86_64-linux-gnu -lX11 -lXext -lXrender -g -o xwinwrap`
### Usage
```
Usage: xwinwrap [-g {w}x{h}+{x}+{y}] [-ni] [-argb] [-fs] [-s] [-st] [-sp] [-a] [-b] [-nf] [-o OPACITY] [-sh SHAPE] [-ov]-- COMMAND ARG1...
Options:
-g - Specify Geometry (w=width, h=height, x=x-coord, y=y-coord. ex: -g 640x480+100+100)
-ni - Ignore Input
-argb - RGB
-fs - Full Screen
-un - Undecorated
-s - Sticky
-st - Skip Taskbar
-sp - Skip Pager
-a - Above
-b - Below
-nf - No Focus
-o - Opacity value between 0 to 1 (ex: -o 0.20)
-sh - Shape of window (choose between rectangle, circle or triangle. Default is rectangle)
-ov - Set override_redirect flag (For seamless desktop background integration in non-fullscreenmode)
-debug - Enable debug messages
```
Example
`./xwinwrap -g 400x400 -ni -s -nf -b -un -argb -sh circle -- gifview -w WID mygif.gif -a`
### Changes
* Added ability to make undecorated window
* Changed how desktop window is found
* Refactored window hints
----
Original source - https://launchpad.net/xwinwrap

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