static Window
get_output_window (MetaScreen *screen)
{
MetaDisplay *display = meta_screen_get_display (screen);
Display *xdisplay = meta_display_get_xdisplay (display);
Window output, xroot;
XWindowAttributes attr;
long event_mask;
xroot = meta_screen_get_xroot (screen);
event_mask = FocusChangeMask |
ExposureMask |
EnterWindowMask | LeaveWindowMask |
PointerMotionMask |
PropertyChangeMask |
ButtonPressMask | ButtonReleaseMask |
KeyPressMask | KeyReleaseMask;
output = XCompositeGetOverlayWindow (xdisplay, xroot);
if (XGetWindowAttributes (xdisplay, output, &attr))
{
event_mask |= attr.your_event_mask;
}
XSelectInput (xdisplay, output, event_mask);
return output;
}
Window create_overlay(void) {
Window w = XCompositeGetOverlayWindow(dpy, root);
ignore_input(w);
XSelectInput (dpy, w, SubstructureNotifyMask | VisibilityChangeMask | ExposureMask);
return w;
}
static void
ShowAlert(const char *title,
const char *ignore, const char *restart, const char *quit,
const char *fmt, va_list args)
{
char text[4096], buf1[64], buf2[64], buf3[64];
Window win, b1 = 0, b2 = 0, b3 = 0, root;
Display *dd;
int wid, hih, w, h, i, k, mask;
XGCValues gcv;
GC gc;
unsigned int len;
XEvent ev;
XSetWindowAttributes att;
XRectangle rect1, rect2;
char colorful;
unsigned long cols[5];
XColor xcl;
Colormap cmap;
int cnum, fh, x, y, ww, hh, bw, bh;
char *str1, *str2, *str3, *p;
KeyCode keycode;
int button;
char **missing_charset_list_return, *def_string_return;
int missing_charset_count_return;
XFontStruct **font_struct_list_return;
char **font_name_list_return;
#if 0
/* Don't play sound here (maybe if not forked/in signal handler - later) */
SoundPlay(SOUND_ALERT);
#endif
if (!fmt)
return;
Evsnprintf(text, sizeof(text), fmt, args);
/*
* We may get here from obscure places like an X-error or signal handler
* and things seem to work properly only if we do a new XOpenDisplay().
*/
dd = XOpenDisplay(NULL);
if (!dd)
{
fprintf(stderr, "%s\n", text);
fflush(stderr);
return;
}
button = 0;
if (!title)
title = _("Enlightenment Error");
str1 = AlertButtonText(1, buf1, sizeof(buf1), ignore);
str2 = AlertButtonText(2, buf2, sizeof(buf2), restart);
str3 = AlertButtonText(3, buf3, sizeof(buf3), quit);
cnum = 0;
colorful = 0;
cols[0] = cols[1] = cols[2] = cols[3] = cols[4] = 0;
cmap = DefaultColormap(dd, DefaultScreen(dd));
if (DefaultDepth(dd, DefaultScreen(dd)) > 4)
{
ExSetColor(&xcl, 220, 220, 220);
if (!XAllocColor(dd, cmap, &xcl))
goto CN;
cols[cnum++] = xcl.pixel;
ExSetColor(&xcl, 160, 160, 160);
if (!XAllocColor(dd, cmap, &xcl))
goto CN;
cols[cnum++] = xcl.pixel;
ExSetColor(&xcl, 100, 100, 100);
if (!XAllocColor(dd, cmap, &xcl))
goto CN;
cols[cnum++] = xcl.pixel;
ExSetColor(&xcl, 0, 0, 0);
if (!XAllocColor(dd, cmap, &xcl))
goto CN;
cols[cnum++] = xcl.pixel;
ExSetColor(&xcl, 255, 255, 255);
if (!XAllocColor(dd, cmap, &xcl))
goto CN;
cols[cnum++] = xcl.pixel;
colorful = 1;
}
CN:
if (colorful)
att.background_pixel = cols[1];
else
att.background_pixel = BlackPixel(dd, DefaultScreen(dd));
if (colorful)
att.border_pixel = cols[3];
else
att.border_pixel = WhitePixel(dd, DefaultScreen(dd));
att.backing_store = Always;
att.save_under = True;
att.override_redirect = True;
mask = CWBackPixel | CWBorderPixel | CWOverrideRedirect | CWSaveUnder |
CWBackingStore;
#if USE_COMPOSITE_OVERLAY_WINDOW
/*
* Intended workings:
* Composite extension not enabled (or COW not available?)
* - fall back to root
* Composite extension enabled
* - use COW whether or not compositing is enabled, window mode too
*/
root = XCompositeGetOverlayWindow(dd, DefaultRootWindow(dd));
if (root == None)
#endif
{
root = DefaultRootWindow(dd);
}
win = XCreateWindow(dd, root, -100, -100, 1, 1, 0,
CopyFromParent, InputOutput, CopyFromParent, mask, &att);
gc = XCreateGC(dd, win, 0, &gcv);
if (colorful)
XSetForeground(dd, gc, cols[3]);
else
XSetForeground(dd, gc, att.border_pixel);
xfs = XCreateFontSet(dd, "fixed",
&missing_charset_list_return,
&missing_charset_count_return, &def_string_return);
if (!xfs)
goto done;
if (missing_charset_list_return)
XFreeStringList(missing_charset_list_return);
k = XFontsOfFontSet(xfs, &font_struct_list_return, &font_name_list_return);
fh = 0;
for (i = 0; i < k; i++)
{
h = font_struct_list_return[i]->ascent +
font_struct_list_return[i]->descent;
if (fh < h)
fh = h;
}
XSelectInput(dd, win, ExposureMask);
XMapWindow(dd, win);
XGrabServer(dd);
XGrabPointer(dd, win, False, ButtonPressMask | ButtonReleaseMask,
GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
XGrabKeyboard(dd, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
XSetInputFocus(dd, win, RevertToPointerRoot, CurrentTime);
XSync(dd, False);
wid = DisplayWidth(dd, DefaultScreen(dd));
hih = DisplayHeight(dd, DefaultScreen(dd));
ww = (wid >= 600) ? 600 : (wid / 40) * 40;
hh = (hih >= 440) ? 440 : (hih / 40) * 40;
for (i = 40; i < ww; i += 40)
{
w = i;
h = (i * hh) / ww;
x = (wid - w) >> 1;
y = (hih - h) >> 1;
XMoveResizeWindow(dd, win, x, y, w, h);
DRAW_BOX_OUT(dd, gc, win, 0, 0, w, h);
XSync(dd, False);
SleepUs(20000);
}
x = (wid - ww) >> 1;
y = (hih - hh) >> 1;
XMoveResizeWindow(dd, win, x, y, ww, hh);
XSync(dd, False);
bw = 0;
if (str1)
{
ExTextExtents(xfs, str1, strlen(str1), &rect1, &rect2);
bw = (rect2.width > bw) ? rect2.width : bw;
}
if (str2)
{
ExTextExtents(xfs, str2, strlen(str2), &rect1, &rect2);
bw = (rect2.width > bw) ? rect2.width : bw;
}
if (str3)
{
ExTextExtents(xfs, str3, strlen(str3), &rect1, &rect2);
bw = (rect2.width > bw) ? rect2.width : bw;
}
bw += 20;
bh = fh + 10;
#define BX(i) (5 + (((ww - bw - 10) * (i)) / 2))
#define BY (hh - bh - 5)
if (str1)
{
b1 = XCreateWindow(dd, win, BX(0), BY, bw, bh, 0, CopyFromParent,
InputOutput, CopyFromParent, mask, &att);
XMapWindow(dd, b1);
}
if (str2)
{
b2 = XCreateWindow(dd, win, BX(1), BY, bw, bh, 0, CopyFromParent,
InputOutput, CopyFromParent, mask, &att);
XMapWindow(dd, b2);
}
if (str3)
{
b3 = XCreateWindow(dd, win, BX(2), BY, bw, bh, 0, CopyFromParent,
InputOutput, CopyFromParent, mask, &att);
XMapWindow(dd, b3);
}
XSync(dd, False);
button = 0;
for (; button == 0;)
{
XNextEvent(dd, &ev);
switch (ev.type)
{
case KeyPress:
keycode = XKeysymToKeycode(dd, XK_F1);
if (keycode == ev.xkey.keycode)
{
DRAW_BOX_IN(dd, gc, b1, 0, 0, bw, bh);
XSync(dd, False);
SleepUs(500000);
DRAW_BOX_OUT(dd, gc, b1, 0, 0, bw, bh);
button = 1;
goto do_sync;
}
keycode = XKeysymToKeycode(dd, XK_F2);
if (keycode == ev.xkey.keycode)
{
DRAW_BOX_IN(dd, gc, b2, 0, 0, bw, bh);
XSync(dd, False);
SleepUs(500000);
DRAW_BOX_OUT(dd, gc, b2, 0, 0, bw, bh);
button = 2;
goto do_sync;
}
keycode = XKeysymToKeycode(dd, XK_F3);
if (keycode == ev.xkey.keycode)
{
DRAW_BOX_IN(dd, gc, b3, 0, 0, bw, bh);
XSync(dd, False);
SleepUs(500000);
DRAW_BOX_OUT(dd, gc, b3, 0, 0, bw, bh);
button = 3;
goto do_sync;
}
break;
case ButtonPress:
if (!(ev.xbutton.y >= BY && ev.xbutton.y < BY + bh))
break;
x = BX(0);
if (b1 && ev.xbutton.x >= x && ev.xbutton.x < x + bw)
{
DRAW_BOX_IN(dd, gc, b1, 0, 0, bw, bh);
goto do_sync;
}
x = BX(1);
if (b2 && ev.xbutton.x >= x && ev.xbutton.x < x + bw)
{
DRAW_BOX_IN(dd, gc, b2, 0, 0, bw, bh);
goto do_sync;
}
x = BX(2);
if (b3 && ev.xbutton.x >= x && ev.xbutton.x < x + bw)
{
DRAW_BOX_IN(dd, gc, b3, 0, 0, bw, bh);
goto do_sync;
}
break;
case ButtonRelease:
if (!(ev.xbutton.y >= BY && ev.xbutton.y < BY + bh))
break;
x = BX(0);
if (b1 && ev.xbutton.x >= x && ev.xbutton.x < x + bw)
{
DRAW_BOX_OUT(dd, gc, b1, 0, 0, bw, bh);
button = 1;
goto do_sync;
}
x = BX(1);
if (b2 && ev.xbutton.x >= x && ev.xbutton.x < x + bw)
{
DRAW_BOX_OUT(dd, gc, b2, 0, 0, bw, bh);
button = 2;
goto do_sync;
}
x = BX(2);
if (b3 && ev.xbutton.x >= x && ev.xbutton.x < x + bw)
{
DRAW_BOX_OUT(dd, gc, b3, 0, 0, bw, bh);
button = 3;
goto do_sync;
}
break;
case Expose:
/* Flush all other Expose events */
while (XCheckTypedWindowEvent(dd, ev.xexpose.window, Expose, &ev))
;
ExTextExtents(xfs, title, strlen(title), &rect1, &rect2);
w = rect2.width;
DRAW_HEADER(dd, gc, win, (ww - w) / 2, 5 - rect2.y, title);
DRAW_BOX_OUT(dd, gc, win, 0, 0, ww, bh);
DRAW_BOX_OUT(dd, gc, win, 0, bh - 1, ww, hh - fh - fh - 30 + 2);
DRAW_BOX_OUT(dd, gc, win, 0, hh - fh - 20, ww, fh + 20);
k = bh;
for (p = text;; p += len + 1)
{
len = strcspn(p, "\n");
DRAW_STRING(dd, gc, win, 6, 6 + k + fh, p, len);
k += fh + 2;
if (p[len] == '\0')
break;
}
if (str1)
{
ExTextExtents(xfs, str1, strlen(str1), &rect1, &rect2);
w = rect2.width;
DRAW_HEADER(dd, gc, b1, (bw - w) / 2, 5 - rect2.y, str1);
DRAW_BOX_OUT(dd, gc, b1, 0, 0, bw, bh);
DRAW_THIN_BOX_IN(dd, gc, win,
BX(0) - 2, BY - 2, bw + 4, bh + 4);
}
if (str2)
{
ExTextExtents(xfs, str2, strlen(str2), &rect1, &rect2);
w = rect2.width;
DRAW_HEADER(dd, gc, b2, (bw - w) / 2, 5 - rect2.y, str2);
DRAW_BOX_OUT(dd, gc, b2, 0, 0, bw, bh);
DRAW_THIN_BOX_IN(dd, gc, win,
BX(1) - 2, BY - 2, bw + 4, bh + 4);
}
if (str3)
{
ExTextExtents(xfs, str3, strlen(str3), &rect1, &rect2);
w = rect2.width;
DRAW_HEADER(dd, gc, b3, (bw - w) / 2, 5 - rect2.y, str3);
DRAW_BOX_OUT(dd, gc, b3, 0, 0, bw, bh);
DRAW_THIN_BOX_IN(dd, gc, win,
BX(2) - 2, BY - 2, bw + 4, bh + 4);
}
do_sync:
XSync(dd, False);
break;
default:
break;
}
}
XFreeFontSet(dd, xfs);
done:
XUngrabServer(dd);
XDestroyWindow(dd, win);
XFreeGC(dd, gc);
if (cnum > 0)
XFreeColors(dd, cmap, cols, cnum, 0);
XCloseDisplay(dd);
switch (button)
{
default:
case 1:
break;
case 2:
SessionExit(EEXIT_RESTART, NULL);
break;
case 3:
SessionExit(EEXIT_EXIT, NULL);
break;
}
}
