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Bug 524110 - Gdk should not assume reparenting WMs when retrieving window

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2008-05-25  Cody Russell  <bratsche@gnome.org>

        Bug 524110 - Gdk should	not assume reparenting	WMs when retrieving
        window	frame extents

        * gdk/x11/gdkwindow-x11.c (gdk_window_get_frame_extents):
        Use _NET_FRAME_EXTENTS,	if available. Patch by Danny Baumann.


svn path=/trunk/; revision=20164
This commit is contained in:
Cody Russell
2008-05-25 23:14:39 +00:00
committed by Cody Russell
parent 030ff5b10a
commit 4a5da1a18d
2 changed files with 62 additions and 8 deletions
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62
gdk/x11/gdkwindow-x11.c
View File

@ -3391,6 +3391,7 @@ gdk_window_get_frame_extents (GdkWindow *window,
gint i;
guint ww, wh, wb, wd;
gint wx, wy;
gboolean got_frame_extents = FALSE;
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (rect != NULL);
@ -3416,15 +3417,60 @@ gdk_window_get_frame_extents (GdkWindow *window,
if (GDK_WINDOW_DESTROYED (private))
return;
gdk_error_trap_push();
/* use NETWM_VIRTUAL_ROOTS if available */
display = gdk_drawable_get_display (window);
root = GDK_WINDOW_XROOTWIN (window);
nvroots = 0;
vroots = NULL;
gdk_error_trap_push();
display = gdk_drawable_get_display (window);
xwindow = GDK_WINDOW_XID (window);
/* first try: use _NET_FRAME_EXTENTS */
if (XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), xwindow,
gdk_x11_get_xatom_by_name_for_display (display,
"_NET_FRAME_EXTENTS"),
0, G_MAXLONG, False, XA_CARDINAL, &type_return,
&format_return, &nitems_return, &bytes_after_return,
&data)
== Success)
{
if ((type_return == XA_CARDINAL) && (format_return == 32) &&
(nitems_return == 4) && (data))
{
guint32 *ldata = (guint32 *) data;
got_frame_extents = TRUE;
/* try to get the real client window geometry */
if (XGetGeometry (GDK_DISPLAY_XDISPLAY (display), xwindow,
&root, &wx, &wy, &ww, &wh, &wb, &wd))
{
rect->x = wx;
rect->y = wy;
rect->width = ww;
rect->height = wh;
}
/* _NET_FRAME_EXTENTS format is left, right, top, bottom */
rect->x -= ldata[0];
rect->y -= ldata[2];
rect->width += ldata[0] + ldata[1];
rect->height += ldata[2] + ldata[3];
}
if (data)
XFree (data);
}
if (got_frame_extents)
goto out;
/* no frame extents property available, which means we either have a WM that
is not EWMH compliant or is broken - try fallback and walk up the window
tree to get our window's parent which hopefully is the window frame */
/* use NETWM_VIRTUAL_ROOTS if available */
root = GDK_WINDOW_XROOTWIN (window);
if (XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), root,
gdk_x11_get_xatom_by_name_for_display (display,
"_NET_VIRTUAL_ROOTS"),
@ -3449,7 +3495,7 @@ gdk_window_get_frame_extents (GdkWindow *window,
if (!XQueryTree (GDK_DISPLAY_XDISPLAY (display), xwindow,
&root, &xparent,
&children, &nchildren))
goto fail;
goto out;
if (children)
XFree (children);
@ -3475,7 +3521,7 @@ gdk_window_get_frame_extents (GdkWindow *window,
rect->height = wh;
}
fail:
out:
if (vroots)
XFree (vroots);