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gtk/gdk/x11/gdkdisplay-x11.c
Alexander Larsson 038aac6275 gdk: Add support for OpenGL 
This adds the new type GdkGLContext that wraps an OpenGL context for a
particular native window. It also adds support for the gdk paint
machinery to use OpenGL to draw everything. As soon as anyone creates
a GL context for a native window we create a "paint context" for that
GdkWindow and switch to using GL for painting it.

This commit contains only an implementation for X11 (using GLX).

The way painting works is that all client gl contexts draw into
offscreen buffers rather than directly to the back buffer, and the
way something gets onto the window is by using gdk_cairo_draw_from_gl()
to draw part of that buffer onto the draw cairo context.

As a fallback (if we're doing redirected drawing or some effect like a
cairo_push_group()) we read back the gl buffer into memory and composite
using cairo. This means that GL rendering works in all cases, including
rendering to a PDF. However, this is not particularly fast.

In the *typical* case, where we're drawing directly to the window in
the regular paint loop we hit the fast path. The fast path uses opengl
to draw the buffer to the window back buffer, either by blitting or
texturing. Then we track the region that was drawn, and when the draw
ends we paint the normal cairo surface to the window (using
texture-from-pixmap in the X11 case, or texture from cairo image
otherwise) in the regions where there is no gl painted.

There are some complexities wrt layering of gl and cairo areas though:
* We track via gdk_window_mark_paint_from_clip() whenever gtk is
  painting over a region we previously rendered with opengl
  (flushed_region). This area (needs_blend_region) is blended
  rather than copied at the end of the frame.
* If we're drawing a gl texture with alpha we first copy the current
  cairo_surface inside the target region to the back buffer before
  we blend over it.

These two operations allow us full stacking of transparent gl and cairo
regions.
2014-10-13 10:43:31 -04:00

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/* GDK - The GIMP Drawing Kit
* gdkdisplay-x11.c
*
* Copyright 2001 Sun Microsystems Inc.
* Copyright (C) 2004 Nokia Corporation
*
* Erwann Chenede <erwann.chenede@sun.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gdkasync.h"
#include "gdkdisplay.h"
#include "gdkeventsource.h"
#include "gdkeventtranslator.h"
#include "gdkframeclockprivate.h"
#include "gdkinternals.h"
#include "gdkscreen.h"
#include "gdkinternals.h"
#include "gdkdeviceprivate.h"
#include "gdkkeysprivate.h"
#include "gdkdevicemanager.h"
#include "xsettings-client.h"
#include "gdkdisplay-x11.h"
#include "gdkprivate-x11.h"
#include "gdkscreen-x11.h"
#include "gdkglcontext-x11.h"
#include <glib.h>
#include <glib/gprintf.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <X11/Xatom.h>
#include <X11/Xlibint.h>
#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif
#ifdef HAVE_XFIXES
#include <X11/extensions/Xfixes.h>
#endif
#include <X11/extensions/shape.h>
#ifdef HAVE_XCOMPOSITE
#include <X11/extensions/Xcomposite.h>
#endif
#ifdef HAVE_XDAMAGE
#include <X11/extensions/Xdamage.h>
#endif
#ifdef HAVE_RANDR
#include <X11/extensions/Xrandr.h>
#endif
typedef struct _GdkErrorTrap GdkErrorTrap;
struct _GdkErrorTrap
{
/* Next sequence when trap was pushed, i.e. first sequence to
* ignore
*/
gulong start_sequence;
/* Next sequence when trap was popped, i.e. first sequence
* to not ignore. 0 if trap is still active.
*/
gulong end_sequence;
/* Most recent error code within the sequence */
int error_code;
};
static void gdk_x11_display_dispose (GObject *object);
static void gdk_x11_display_finalize (GObject *object);
static void gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface);
static gboolean gdk_x11_display_translate_event (GdkEventTranslator *translator,
GdkDisplay *display,
GdkEvent *event,
XEvent *xevent);
static void gdk_internal_connection_watch (Display *display,
XPointer arg,
gint fd,
gboolean opening,
XPointer *watch_data);
typedef struct _GdkEventTypeX11 GdkEventTypeX11;
struct _GdkEventTypeX11
{
gint base;
gint n_events;
};
/* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
* but including them here has the side-effect of getting them
* into the internal Xlib cache
*/
static const char *const precache_atoms[] = {
"UTF8_STRING",
"WM_CLIENT_LEADER",
"WM_DELETE_WINDOW",
"WM_ICON_NAME",
"WM_LOCALE_NAME",
"WM_NAME",
"WM_PROTOCOLS",
"WM_TAKE_FOCUS",
"WM_WINDOW_ROLE",
"_NET_ACTIVE_WINDOW",
"_NET_CURRENT_DESKTOP",
"_NET_FRAME_EXTENTS",
"_NET_STARTUP_ID",
"_NET_WM_CM_S0",
"_NET_WM_DESKTOP",
"_NET_WM_ICON",
"_NET_WM_ICON_NAME",
"_NET_WM_NAME",
"_NET_WM_PID",
"_NET_WM_PING",
"_NET_WM_STATE",
"_NET_WM_STATE_ABOVE",
"_NET_WM_STATE_BELOW",
"_NET_WM_STATE_FULLSCREEN",
"_NET_WM_STATE_HIDDEN",
"_NET_WM_STATE_MODAL",
"_NET_WM_STATE_MAXIMIZED_VERT",
"_NET_WM_STATE_MAXIMIZED_HORZ",
"_NET_WM_STATE_SKIP_TASKBAR",
"_NET_WM_STATE_SKIP_PAGER",
"_NET_WM_STATE_STICKY",
"_NET_WM_SYNC_REQUEST",
"_NET_WM_SYNC_REQUEST_COUNTER",
"_NET_WM_WINDOW_TYPE",
"_NET_WM_WINDOW_TYPE_COMBO",
"_NET_WM_WINDOW_TYPE_DIALOG",
"_NET_WM_WINDOW_TYPE_DND",
"_NET_WM_WINDOW_TYPE_DROPDOWN_MENU",
"_NET_WM_WINDOW_TYPE_MENU",
"_NET_WM_WINDOW_TYPE_NORMAL",
"_NET_WM_WINDOW_TYPE_POPUP_MENU",
"_NET_WM_WINDOW_TYPE_TOOLTIP",
"_NET_WM_WINDOW_TYPE_UTILITY",
"_NET_WM_USER_TIME",
"_NET_WM_USER_TIME_WINDOW",
"_NET_VIRTUAL_ROOTS",
"GDK_SELECTION",
"_NET_WM_STATE_FOCUSED"
};
static char *gdk_sm_client_id;
G_DEFINE_TYPE_WITH_CODE (GdkX11Display, gdk_x11_display, GDK_TYPE_DISPLAY,
G_IMPLEMENT_INTERFACE (GDK_TYPE_EVENT_TRANSLATOR,
gdk_x11_display_event_translator_init))
static void
gdk_x11_display_init (GdkX11Display *display)
{
}
static void
gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface)
{
iface->translate_event = gdk_x11_display_translate_event;
}
static void
do_net_wm_state_changes (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkWindowState old_state, set, unset;
if (GDK_WINDOW_DESTROYED (window) ||
gdk_window_get_window_type (window) != GDK_WINDOW_TOPLEVEL)
return;
old_state = gdk_window_get_state (window);
set = unset = 0;
/* For found_sticky to remain TRUE, we have to also be on desktop
* 0xFFFFFFFF
*/
if (old_state & GDK_WINDOW_STATE_STICKY)
{
if (!(toplevel->have_sticky && toplevel->on_all_desktops))
unset |= GDK_WINDOW_STATE_STICKY;
}
else
{
if (toplevel->have_sticky && toplevel->on_all_desktops)
set |= GDK_WINDOW_STATE_STICKY;
}
if (old_state & GDK_WINDOW_STATE_FULLSCREEN)
{
if (!toplevel->have_fullscreen)
unset |= GDK_WINDOW_STATE_FULLSCREEN;
}
else
{
if (toplevel->have_fullscreen)
set |= GDK_WINDOW_STATE_FULLSCREEN;
}
/* Our "maximized" means both vertical and horizontal; if only one,
* we don't expose that via GDK
*/
if (old_state & GDK_WINDOW_STATE_MAXIMIZED)
{
if (!(toplevel->have_maxvert && toplevel->have_maxhorz))
unset |= GDK_WINDOW_STATE_MAXIMIZED;
}
else
{
if (toplevel->have_maxvert && toplevel->have_maxhorz)
set |= GDK_WINDOW_STATE_MAXIMIZED;
}
/* FIXME: we rely on implementation details of mutter here:
* mutter only tiles horizontally, and sets maxvert when it does
* and if it tiles, it always affects all edges
*/
if (old_state & GDK_WINDOW_STATE_TILED)
{
if (!toplevel->have_maxvert)
unset |= GDK_WINDOW_STATE_TILED;
}
else
{
if (toplevel->have_maxvert && !toplevel->have_maxhorz)
set |= GDK_WINDOW_STATE_TILED;
}
if (old_state & GDK_WINDOW_STATE_FOCUSED)
{
if (!toplevel->have_focused)
unset |= GDK_WINDOW_STATE_FOCUSED;
}
else
{
if (toplevel->have_focused)
set |= GDK_WINDOW_STATE_FOCUSED;
}
if (old_state & GDK_WINDOW_STATE_ICONIFIED)
{
if (!toplevel->have_hidden)
unset |= GDK_WINDOW_STATE_ICONIFIED;
}
else
{
if (toplevel->have_hidden)
set |= GDK_WINDOW_STATE_ICONIFIED;
}
gdk_synthesize_window_state (window, unset, set);
}
static void
gdk_check_wm_desktop_changed (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
guchar *data;
gulong *desktop;
type = None;
gdk_x11_display_error_trap_push (display);
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"),
0, G_MAXLONG, False, XA_CARDINAL, &type,
&format, &nitems,
&bytes_after, &data);
gdk_x11_display_error_trap_pop_ignored (display);
if (type != None)
{
desktop = (gulong *)data;
toplevel->on_all_desktops = ((*desktop & 0xFFFFFFFF) == 0xFFFFFFFF);
XFree (desktop);
}
else
toplevel->on_all_desktops = FALSE;
do_net_wm_state_changes (window);
}
static void
gdk_check_wm_state_changed (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
GdkScreen *screen = GDK_WINDOW_SCREEN (window);
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
guchar *data;
Atom *atoms = NULL;
gulong i;
gboolean had_sticky = toplevel->have_sticky;
toplevel->have_sticky = FALSE;
toplevel->have_maxvert = FALSE;
toplevel->have_maxhorz = FALSE;
toplevel->have_fullscreen = FALSE;
toplevel->have_focused = FALSE;
toplevel->have_hidden = FALSE;
type = None;
gdk_x11_display_error_trap_push (display);
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"),
0, G_MAXLONG, False, XA_ATOM, &type, &format, &nitems,
&bytes_after, &data);
gdk_x11_display_error_trap_pop_ignored (display);
if (type != None)
{
Atom sticky_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_STICKY");
Atom maxvert_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_VERT");
Atom maxhorz_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_HORZ");
Atom fullscreen_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FULLSCREEN");
Atom focused_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FOCUSED");
Atom hidden_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_HIDDEN");
atoms = (Atom *)data;
i = 0;
while (i < nitems)
{
if (atoms[i] == sticky_atom)
toplevel->have_sticky = TRUE;
else if (atoms[i] == maxvert_atom)
toplevel->have_maxvert = TRUE;
else if (atoms[i] == maxhorz_atom)
toplevel->have_maxhorz = TRUE;
else if (atoms[i] == fullscreen_atom)
toplevel->have_fullscreen = TRUE;
else if (atoms[i] == focused_atom)
toplevel->have_focused = TRUE;
else if (atoms[i] == hidden_atom)
toplevel->have_hidden = TRUE;
++i;
}
XFree (atoms);
}
if (!gdk_x11_screen_supports_net_wm_hint (screen,
gdk_atom_intern_static_string ("_NET_WM_STATE_FOCUSED")))
toplevel->have_focused = TRUE;
/* When have_sticky is turned on, we have to check the DESKTOP property
* as well.
*/
if (toplevel->have_sticky && !had_sticky)
gdk_check_wm_desktop_changed (window);
else
do_net_wm_state_changes (window);
}
static Window
get_event_xwindow (XEvent *xevent)
{
Window xwindow;
switch (xevent->type)
{
case DestroyNotify:
xwindow = xevent->xdestroywindow.window;
break;
case UnmapNotify:
xwindow = xevent->xunmap.window;
break;
case MapNotify:
xwindow = xevent->xmap.window;
break;
case ConfigureNotify:
xwindow = xevent->xconfigure.window;
break;
case ReparentNotify:
xwindow = xevent->xreparent.window;
break;
case GravityNotify:
xwindow = xevent->xgravity.window;
break;
case CirculateNotify:
xwindow = xevent->xcirculate.window;
break;
default:
xwindow = xevent->xany.window;
}
return xwindow;
}
static gboolean
gdk_x11_display_translate_event (GdkEventTranslator *translator,
GdkDisplay *display,
GdkEvent *event,
XEvent *xevent)
{
Window xwindow;
GdkWindow *window;
gboolean is_substructure;
GdkWindowImplX11 *window_impl = NULL;
GdkScreen *screen = NULL;
GdkX11Screen *x11_screen = NULL;
GdkToplevelX11 *toplevel = NULL;
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
gboolean return_val;
/* Find the GdkWindow that this event relates to. If that's
* not the same as the window that the event was sent to,
* we are getting an event from SubstructureNotifyMask.
* We ignore such events for internal operation, but we
* need to report them to the application because of
* GDK_SUBSTRUCTURE_MASK (which should be removed at next
* opportunity.) The most likely reason for getting these
* events is when we are used in the Metacity or Mutter
* window managers.
*/
xwindow = get_event_xwindow (xevent);
is_substructure = xwindow != xevent->xany.window;
window = gdk_x11_window_lookup_for_display (display, xwindow);
if (window)
{
/* We may receive events such as NoExpose/GraphicsExpose
* and ShmCompletion for pixmaps
*/
if (!GDK_IS_WINDOW (window))
return FALSE;
screen = GDK_WINDOW_SCREEN (window);
x11_screen = GDK_X11_SCREEN (screen);
toplevel = _gdk_x11_window_get_toplevel (window);
window_impl = GDK_WINDOW_IMPL_X11 (window->impl);
g_object_ref (window);
}
event->any.window = window;
event->any.send_event = xevent->xany.send_event ? TRUE : FALSE;
if (window && GDK_WINDOW_DESTROYED (window))
{
if (xevent->type != DestroyNotify)
{
return_val = FALSE;
goto done;
}
}
if (xevent->type == DestroyNotify && !is_substructure)
{
screen = GDK_X11_DISPLAY (display)->screen;
x11_screen = GDK_X11_SCREEN (screen);
if (x11_screen->wmspec_check_window == xevent->xdestroywindow.window)
{
x11_screen->wmspec_check_window = None;
x11_screen->last_wmspec_check_time = 0;
g_free (x11_screen->window_manager_name);
x11_screen->window_manager_name = g_strdup ("unknown");
/* careful, reentrancy */
_gdk_x11_screen_window_manager_changed (screen);
return_val = FALSE;
goto done;
}
}
/* We do a "manual" conversion of the XEvent to a
* GdkEvent. The structures are mostly the same so
* the conversion is fairly straightforward. We also
* optionally print debugging info regarding events
* received.
*/
return_val = TRUE;
switch (xevent->type)
{
case KeymapNotify:
GDK_NOTE (EVENTS,
g_message ("keymap notify"));
/* Not currently handled */
return_val = FALSE;
break;
case Expose:
GDK_NOTE (EVENTS,
g_message ("expose:\t\twindow: %ld %d x,y: %d %d w,h: %d %d%s",
xevent->xexpose.window, xevent->xexpose.count,
xevent->xexpose.x, xevent->xexpose.y,
xevent->xexpose.width, xevent->xexpose.height,
event->any.send_event ? " (send)" : ""));
if (window == NULL)
{
return_val = FALSE;
break;
}
{
GdkRectangle expose_rect;
int x2, y2;
expose_rect.x = xevent->xexpose.x / window_impl->window_scale;
expose_rect.y = xevent->xexpose.y / window_impl->window_scale;
x2 = (xevent->xexpose.x + xevent->xexpose.width + window_impl->window_scale -1) / window_impl->window_scale;
expose_rect.width = x2 - expose_rect.x;
y2 = (xevent->xexpose.y + xevent->xexpose.height + window_impl->window_scale -1) / window_impl->window_scale;
expose_rect.height = y2 - expose_rect.y;
_gdk_x11_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
return_val = FALSE;
}
break;
case GraphicsExpose:
{
GdkRectangle expose_rect;
int x2, y2;
GDK_NOTE (EVENTS,
g_message ("graphics expose:\tdrawable: %ld",
xevent->xgraphicsexpose.drawable));
if (window == NULL)
{
return_val = FALSE;
break;
}
expose_rect.x = xevent->xgraphicsexpose.x / window_impl->window_scale;
expose_rect.y = xevent->xgraphicsexpose.y / window_impl->window_scale;
x2 = (xevent->xgraphicsexpose.x + xevent->xgraphicsexpose.width + window_impl->window_scale -1) / window_impl->window_scale;
expose_rect.width = x2 - expose_rect.x;
y2 = (xevent->xgraphicsexpose.y + xevent->xgraphicsexpose.height + window_impl->window_scale -1) / window_impl->window_scale;
expose_rect.height = y2 - expose_rect.y;
_gdk_x11_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
return_val = FALSE;
}
break;
case VisibilityNotify:
#ifdef G_ENABLE_DEBUG
if (_gdk_debug_flags & GDK_DEBUG_EVENTS)
switch (xevent->xvisibility.state)
{
case VisibilityFullyObscured:
g_message ("visibility notify:\twindow: %ld none",
xevent->xvisibility.window);
break;
case VisibilityPartiallyObscured:
g_message ("visibility notify:\twindow: %ld partial",
xevent->xvisibility.window);
break;
case VisibilityUnobscured:
g_message ("visibility notify:\twindow: %ld full",
xevent->xvisibility.window);
break;
}
#endif /* G_ENABLE_DEBUG */
if (window == NULL)
{
return_val = FALSE;
break;
}
event->visibility.type = GDK_VISIBILITY_NOTIFY;
event->visibility.window = window;
switch (xevent->xvisibility.state)
{
case VisibilityFullyObscured:
event->visibility.state = GDK_VISIBILITY_FULLY_OBSCURED;
break;
case VisibilityPartiallyObscured:
event->visibility.state = GDK_VISIBILITY_PARTIAL;
break;
case VisibilityUnobscured:
event->visibility.state = GDK_VISIBILITY_UNOBSCURED;
break;
}
break;
case CreateNotify:
GDK_NOTE (EVENTS,
g_message ("create notify:\twindow: %ld x,y: %d %d w,h: %d %d b-w: %d parent: %ld ovr: %d",
xevent->xcreatewindow.window,
xevent->xcreatewindow.x,
xevent->xcreatewindow.y,
xevent->xcreatewindow.width,
xevent->xcreatewindow.height,
xevent->xcreatewindow.border_width,
xevent->xcreatewindow.parent,
xevent->xcreatewindow.override_redirect));
/* not really handled */
break;
case DestroyNotify:
GDK_NOTE (EVENTS,
g_message ("destroy notify:\twindow: %ld",
xevent->xdestroywindow.window));
if (!is_substructure)
{
event->any.type = GDK_DESTROY;
event->any.window = window;
return_val = window && !GDK_WINDOW_DESTROYED (window);
if (window && GDK_WINDOW_XID (window) != x11_screen->xroot_window)
gdk_window_destroy_notify (window);
}
else
return_val = FALSE;
break;
case UnmapNotify:
GDK_NOTE (EVENTS,
g_message ("unmap notify:\t\twindow: %ld",
xevent->xmap.window));
event->any.type = GDK_UNMAP;
event->any.window = window;
if (window && !is_substructure)
{
/* If the WM supports the _NET_WM_STATE_HIDDEN hint, we do not want to
* interpret UnmapNotify events as implying iconic state.
* http://bugzilla.gnome.org/show_bug.cgi?id=590726.
*/
if (screen &&
!gdk_x11_screen_supports_net_wm_hint (screen,
gdk_atom_intern_static_string ("_NET_WM_STATE_HIDDEN")))
{
/* If we are shown (not withdrawn) and get an unmap, it means we were
* iconified in the X sense. If we are withdrawn, and get an unmap, it
* means we hid the window ourselves, so we will have already flipped
* the iconified bit off.
*/
if (GDK_WINDOW_IS_MAPPED (window))
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_ICONIFIED);
}
if (window_impl->toplevel &&
window_impl->toplevel->frame_pending)
{
window_impl->toplevel->frame_pending = FALSE;
_gdk_frame_clock_thaw (gdk_window_get_frame_clock (event->any.window));
}
if (toplevel)
gdk_window_freeze_toplevel_updates_libgtk_only (window);
_gdk_x11_window_grab_check_unmap (window, xevent->xany.serial);
}
break;
case MapNotify:
GDK_NOTE (EVENTS,
g_message ("map notify:\t\twindow: %ld",
xevent->xmap.window));
event->any.type = GDK_MAP;
event->any.window = window;
if (window && !is_substructure)
{
/* Unset iconified if it was set */
if (window->state & GDK_WINDOW_STATE_ICONIFIED)
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_ICONIFIED,
0);
if (toplevel)
gdk_window_thaw_toplevel_updates_libgtk_only (window);
}
break;
case ReparentNotify:
GDK_NOTE (EVENTS,
g_message ("reparent notify:\twindow: %ld x,y: %d %d parent: %ld ovr: %d",
xevent->xreparent.window,
xevent->xreparent.x,
xevent->xreparent.y,
xevent->xreparent.parent,
xevent->xreparent.override_redirect));
/* Not currently handled */
return_val = FALSE;
break;
case ConfigureNotify:
GDK_NOTE (EVENTS,
g_message ("configure notify:\twindow: %ld x,y: %d %d w,h: %d %d b-w: %d above: %ld ovr: %d%s",
xevent->xconfigure.window,
xevent->xconfigure.x,
xevent->xconfigure.y,
xevent->xconfigure.width,
xevent->xconfigure.height,
xevent->xconfigure.border_width,
xevent->xconfigure.above,
xevent->xconfigure.override_redirect,
!window
? " (discarding)"
: window->window_type == GDK_WINDOW_CHILD
? " (discarding child)"
: xevent->xconfigure.event != xevent->xconfigure.window
? " (discarding substructure)"
: ""));
if (window && GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
{
window->width = xevent->xconfigure.width / window_impl->window_scale;
window->height = xevent->xconfigure.height / window_impl->window_scale;
_gdk_window_update_size (window);
_gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
_gdk_x11_screen_size_changed (screen, xevent);
}
#ifdef HAVE_XSYNC
if (!is_substructure && toplevel && display_x11->use_sync && toplevel->pending_counter_value != 0)
{
toplevel->configure_counter_value = toplevel->pending_counter_value;
toplevel->configure_counter_value_is_extended = toplevel->pending_counter_value_is_extended;
toplevel->pending_counter_value = 0;
}
#endif
if (!window ||
xevent->xconfigure.event != xevent->xconfigure.window ||
GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD ||
GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT)
return_val = FALSE;
else
{
event->configure.type = GDK_CONFIGURE;
event->configure.window = window;
event->configure.width = xevent->xconfigure.width / window_impl->window_scale;
event->configure.height = xevent->xconfigure.height / window_impl->window_scale;
if (!xevent->xconfigure.send_event &&
!xevent->xconfigure.override_redirect &&
!GDK_WINDOW_DESTROYED (window))
{
gint tx = 0;
gint ty = 0;
Window child_window = 0;
gdk_x11_display_error_trap_push (display);
if (XTranslateCoordinates (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
x11_screen->xroot_window,
0, 0,
&tx, &ty,
&child_window))
{
event->configure.x = tx / window_impl->window_scale;
event->configure.y = ty / window_impl->window_scale;
}
gdk_x11_display_error_trap_pop_ignored (display);
}
else
{
event->configure.x = xevent->xconfigure.x / window_impl->window_scale;
event->configure.y = xevent->xconfigure.y / window_impl->window_scale;
}
if (!is_substructure)
{
window->x = event->configure.x;
window->y = event->configure.y;
window->width = xevent->xconfigure.width / window_impl->window_scale;
window->height = xevent->xconfigure.height / window_impl->window_scale;
_gdk_window_update_size (window);
_gdk_x11_window_update_size (GDK_WINDOW_IMPL_X11 (window->impl));
if (window->resize_count >= 1)
{
window->resize_count -= 1;
if (window->resize_count == 0)
_gdk_x11_moveresize_configure_done (display, window);
}
}
}
break;
case PropertyNotify:
GDK_NOTE (EVENTS,
g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
xevent->xproperty.window,
xevent->xproperty.atom,
"\"",
gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom),
"\""));
if (window == NULL)
{
return_val = FALSE;
break;
}
/* We compare with the serial of the last time we mapped the
* window to avoid refetching properties that we set ourselves
*/
if (toplevel &&
xevent->xproperty.serial >= toplevel->map_serial)
{
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"))
gdk_check_wm_state_changed (window);
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
gdk_check_wm_desktop_changed (window);
}
if (window->event_mask & GDK_PROPERTY_CHANGE_MASK)
{
event->property.type = GDK_PROPERTY_NOTIFY;
event->property.window = window;
event->property.atom = gdk_x11_xatom_to_atom_for_display (display, xevent->xproperty.atom);
event->property.time = xevent->xproperty.time;
event->property.state = xevent->xproperty.state;
}
else
return_val = FALSE;
break;
case SelectionClear:
GDK_NOTE (EVENTS,
g_message ("selection clear:\twindow: %ld",
xevent->xproperty.window));
if (_gdk_x11_selection_filter_clear_event (&xevent->xselectionclear))
{
event->selection.type = GDK_SELECTION_CLEAR;
event->selection.window = window;
event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionclear.selection);
event->selection.time = xevent->xselectionclear.time;
}
else
return_val = FALSE;
break;
case SelectionRequest:
GDK_NOTE (EVENTS,
g_message ("selection request:\twindow: %ld",
xevent->xproperty.window));
event->selection.type = GDK_SELECTION_REQUEST;
event->selection.window = window;
event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.selection);
event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.target);
event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselectionrequest.property);
if (xevent->xselectionrequest.requestor != None)
event->selection.requestor = gdk_x11_window_foreign_new_for_display (display,
xevent->xselectionrequest.requestor);
else
event->selection.requestor = NULL;
event->selection.time = xevent->xselectionrequest.time;
break;
case SelectionNotify:
GDK_NOTE (EVENTS,
g_message ("selection notify:\twindow: %ld",
xevent->xproperty.window));
event->selection.type = GDK_SELECTION_NOTIFY;
event->selection.window = window;
event->selection.selection = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.selection);
event->selection.target = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.target);
if (xevent->xselection.property == None)
event->selection.property = GDK_NONE;
else
event->selection.property = gdk_x11_xatom_to_atom_for_display (display, xevent->xselection.property);
event->selection.time = xevent->xselection.time;
break;
case ColormapNotify:
GDK_NOTE (EVENTS,
g_message ("colormap notify:\twindow: %ld",
xevent->xcolormap.window));
/* Not currently handled */
return_val = FALSE;
break;
case ClientMessage:
GDK_NOTE (EVENTS,
g_message ("client message:\twindow: %ld",
xevent->xclient.window));
/* Not currently handled */
return_val = FALSE;
break;
case MappingNotify:
GDK_NOTE (EVENTS,
g_message ("mapping notify"));
/* Let XLib know that there is a new keyboard mapping.
*/
XRefreshKeyboardMapping (&xevent->xmapping);
_gdk_x11_keymap_keys_changed (display);
return_val = FALSE;
break;
default:
#ifdef HAVE_XFIXES
if (xevent->type - display_x11->xfixes_event_base == XFixesSelectionNotify)
{
XFixesSelectionNotifyEvent *selection_notify = (XFixesSelectionNotifyEvent *)xevent;
_gdk_x11_screen_process_owner_change (screen, xevent);
event->owner_change.type = GDK_OWNER_CHANGE;
event->owner_change.window = window;
if (selection_notify->owner != None)
event->owner_change.owner = gdk_x11_window_foreign_new_for_display (display,
selection_notify->owner);
else
event->owner_change.owner = NULL;
event->owner_change.reason = selection_notify->subtype;
event->owner_change.selection =
gdk_x11_xatom_to_atom_for_display (display,
selection_notify->selection);
event->owner_change.time = selection_notify->timestamp;
event->owner_change.selection_time = selection_notify->selection_timestamp;
return_val = TRUE;
}
else
#endif
#ifdef HAVE_RANDR
if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify ||
xevent->type - display_x11->xrandr_event_base == RRNotify)
{
if (screen)
_gdk_x11_screen_size_changed (screen, xevent);
}
else
#endif
#if defined(HAVE_XCOMPOSITE) && defined (HAVE_XDAMAGE) && defined (HAVE_XFIXES)
if (display_x11->have_xdamage && window && window->composited &&
xevent->type == display_x11->xdamage_event_base + XDamageNotify &&
((XDamageNotifyEvent *) xevent)->damage == window_impl->damage)
{
XDamageNotifyEvent *damage_event = (XDamageNotifyEvent *) xevent;
XserverRegion repair;
GdkRectangle rect;
int x2, y2;
rect.x = window->x + damage_event->area.x / window_impl->window_scale;
rect.y = window->y + damage_event->area.y / window_impl->window_scale;
x2 = (rect.x * window_impl->window_scale + damage_event->area.width + window_impl->window_scale -1) / window_impl->window_scale;
y2 = (rect.y * window_impl->window_scale + damage_event->area.height + window_impl->window_scale -1) / window_impl->window_scale;
rect.width = x2 - rect.x;
rect.height = y2 - rect.y;
repair = XFixesCreateRegion (display_x11->xdisplay,
&damage_event->area, 1);
XDamageSubtract (display_x11->xdisplay,
window_impl->damage,
repair, None);
XFixesDestroyRegion (display_x11->xdisplay, repair);
if (window->parent != NULL)
_gdk_x11_window_process_expose (window->parent,
damage_event->serial, &rect);
return_val = TRUE;
}
else
#endif
#ifdef HAVE_XKB
if (xevent->type == display_x11->xkb_event_type)
{
XkbEvent *xkb_event = (XkbEvent *) xevent;
switch (xkb_event->any.xkb_type)
{
case XkbNewKeyboardNotify:
case XkbMapNotify:
_gdk_x11_keymap_keys_changed (display);
return_val = FALSE;
break;
case XkbStateNotify:
_gdk_x11_keymap_state_changed (display, xevent);
break;
}
}
else
#endif
return_val = FALSE;
}
done:
if (return_val)
{
if (event->any.window)
g_object_ref (event->any.window);
}
else
{
/* Mark this event as having no resources to be freed */
event->any.window = NULL;
event->any.type = GDK_NOTHING;
}
if (window)
g_object_unref (window);
return return_val;
}
static GdkFrameTimings *
find_frame_timings (GdkFrameClock *clock,
guint64 serial)
{
gint64 start_frame, end_frame, i;
start_frame = gdk_frame_clock_get_history_start (clock);
end_frame = gdk_frame_clock_get_frame_counter (clock);
for (i = end_frame; i >= start_frame; i--)
{
GdkFrameTimings *timings = gdk_frame_clock_get_timings (clock, i);
if (timings->cookie == serial)
return timings;
}
return NULL;
}
GdkFilterReturn
_gdk_wm_protocols_filter (GdkXEvent *xev,
GdkEvent *event,
gpointer data)
{
XEvent *xevent = (XEvent *)xev;
GdkWindow *win = event->any.window;
GdkDisplay *display;
Atom atom;
if (!GDK_IS_X11_WINDOW (win) || GDK_WINDOW_DESTROYED (win))
return GDK_FILTER_CONTINUE;
if (xevent->type != ClientMessage)
return GDK_FILTER_CONTINUE;
display = GDK_WINDOW_DISPLAY (win);
/* This isn't actually WM_PROTOCOLS because that wouldn't leave enough space
* in the message for everything that gets stuffed in */
if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_FRAME_DRAWN"))
{
GdkWindowImplX11 *window_impl;
window_impl = GDK_WINDOW_IMPL_X11 (win->impl);
if (window_impl->toplevel)
{
guint32 d0 = xevent->xclient.data.l[0];
guint32 d1 = xevent->xclient.data.l[1];
guint32 d2 = xevent->xclient.data.l[2];
guint32 d3 = xevent->xclient.data.l[3];
guint64 serial = ((guint64)d1 << 32) | d0;
gint64 frame_drawn_time = ((guint64)d3 << 32) | d2;
gint64 refresh_interval, presentation_time;
GdkFrameClock *clock = gdk_window_get_frame_clock (win);
GdkFrameTimings *timings = find_frame_timings (clock, serial);
if (timings)
timings->drawn_time = frame_drawn_time;
if (window_impl->toplevel->frame_pending)
{
window_impl->toplevel->frame_pending = FALSE;
_gdk_frame_clock_thaw (clock);
}
gdk_frame_clock_get_refresh_info (clock,
frame_drawn_time,
&refresh_interval,
&presentation_time);
if (presentation_time != 0)
window_impl->toplevel->throttled_presentation_time = presentation_time + refresh_interval;
}
return GDK_FILTER_REMOVE;
}
if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_FRAME_TIMINGS"))
{
GdkWindowImplX11 *window_impl;
window_impl = GDK_WINDOW_IMPL_X11 (win->impl);
if (window_impl->toplevel)
{
guint32 d0 = xevent->xclient.data.l[0];
guint32 d1 = xevent->xclient.data.l[1];
guint32 d2 = xevent->xclient.data.l[2];
guint32 d3 = xevent->xclient.data.l[3];
guint64 serial = ((guint64)d1 << 32) | d0;
GdkFrameClock *clock = gdk_window_get_frame_clock (win);
GdkFrameTimings *timings = find_frame_timings (clock, serial);
if (timings)
{
gint32 presentation_time_offset = (gint32)d2;
gint32 refresh_interval = d3;
if (timings->drawn_time && presentation_time_offset)
timings->presentation_time = timings->drawn_time + presentation_time_offset;
if (refresh_interval)
timings->refresh_interval = refresh_interval;
timings->complete = TRUE;
#ifdef G_ENABLE_DEBUG
if ((_gdk_debug_flags & GDK_DEBUG_FRAMES) != 0)
_gdk_frame_clock_debug_print_timings (clock, timings);
#endif /* G_ENABLE_DEBUG */
}
}
}
if (xevent->xclient.message_type != gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS"))
return GDK_FILTER_CONTINUE;
atom = (Atom) xevent->xclient.data.l[0];
if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
{
/* The delete window request specifies a window
* to delete. We don't actually destroy the
* window because "it is only a request". (The
* window might contain vital data that the
* program does not want destroyed). Instead
* the event is passed along to the program,
* which should then destroy the window.
*/
GDK_NOTE (EVENTS,
g_message ("delete window:\t\twindow: %ld",
xevent->xclient.window));
event->any.type = GDK_DELETE;
gdk_x11_window_set_user_time (win, xevent->xclient.data.l[1]);
return GDK_FILTER_TRANSLATE;
}
else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS"))
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (win);
/* There is no way of knowing reliably whether we are viewable;
* so trap errors asynchronously around the XSetInputFocus call
*/
if (toplevel && win->accept_focus)
{
gdk_x11_display_error_trap_push (display);
XSetInputFocus (GDK_DISPLAY_XDISPLAY (display),
toplevel->focus_window,
RevertToParent,
xevent->xclient.data.l[1]);
gdk_x11_display_error_trap_pop_ignored (display);
}
return GDK_FILTER_REMOVE;
}
else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") &&
!_gdk_x11_display_is_root_window (display,
xevent->xclient.window))
{
XClientMessageEvent xclient = xevent->xclient;
xclient.window = GDK_WINDOW_XROOTWIN (win);
XSendEvent (GDK_WINDOW_XDISPLAY (win),
xclient.window,
False,
SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient);
return GDK_FILTER_REMOVE;
}
else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_SYNC_REQUEST") &&
GDK_X11_DISPLAY (display)->use_sync)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (win);
if (toplevel)
{
#ifdef HAVE_XSYNC
toplevel->pending_counter_value = xevent->xclient.data.l[2] + ((gint64)xevent->xclient.data.l[3] << 32);
toplevel->pending_counter_value_is_extended = xevent->xclient.data.l[4] != 0;
#endif
}
return GDK_FILTER_REMOVE;
}
return GDK_FILTER_CONTINUE;
}
static void
gdk_event_init (GdkDisplay *display)
{
GdkX11Display *display_x11;
GdkDeviceManager *device_manager;
display_x11 = GDK_X11_DISPLAY (display);
display_x11->event_source = gdk_x11_event_source_new (display);
gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
GDK_EVENT_TRANSLATOR (display));
device_manager = gdk_display_get_device_manager (display);
gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
GDK_EVENT_TRANSLATOR (device_manager));
}
static void
gdk_x11_display_init_input (GdkDisplay *display)
{
GdkX11Display *display_x11;
GdkDeviceManager *device_manager;
GdkDevice *device;
GList *list, *l;
display_x11 = GDK_X11_DISPLAY (display);
device_manager = gdk_display_get_device_manager (display);
/* For backwards compatibility, just add
* floating devices that are not keyboards.
*/
list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING);
for (l = list; l; l = l->next)
{
device = l->data;
if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
continue;
display_x11->input_devices = g_list_prepend (display_x11->input_devices,
g_object_ref (l->data));
}
g_list_free (list);
/* Now set "core" pointer to the first
* master device that is a pointer.
*/
list = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
for (l = list; l; l = l->next)
{
device = l->data;
if (gdk_device_get_source (device) != GDK_SOURCE_MOUSE)
continue;
display->core_pointer = device;
break;
}
/* Add the core pointer to the devices list */
display_x11->input_devices = g_list_prepend (display_x11->input_devices,
g_object_ref (display->core_pointer));
g_list_free (list);
}
static void
set_sm_client_id (GdkDisplay *display,
const gchar *sm_client_id)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
if (gdk_display_is_closed (display))
return;
if (sm_client_id && strcmp (sm_client_id, ""))
XChangeProperty (display_x11->xdisplay, display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"),
XA_STRING, 8, PropModeReplace, (guchar *)sm_client_id,
strlen (sm_client_id));
else
XDeleteProperty (display_x11->xdisplay, display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"));
}
GdkDisplay *
_gdk_x11_display_open (const gchar *display_name)
{
Display *xdisplay;
GdkDisplay *display;
GdkX11Display *display_x11;
GdkWindowAttr attr;
gint argc;
gchar *argv[1];
XClassHint *class_hint;
gulong pid;
gint ignore;
gint maj, min;
xdisplay = XOpenDisplay (display_name);
if (!xdisplay)
return NULL;
display = g_object_new (GDK_TYPE_X11_DISPLAY, NULL);
display_x11 = GDK_X11_DISPLAY (display);
display_x11->xdisplay = xdisplay;
/* Set up handlers for Xlib internal connections */
XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
_gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
/* RandR must be initialized before we initialize the screens */
display_x11->have_randr12 = FALSE;
display_x11->have_randr13 = FALSE;
#ifdef HAVE_RANDR
if (XRRQueryExtension (display_x11->xdisplay,
&display_x11->xrandr_event_base, &ignore))
{
int major, minor;
XRRQueryVersion (display_x11->xdisplay, &major, &minor);
if ((major == 1 && minor >= 2) || major > 1) {
display_x11->have_randr12 = TRUE;
if (minor >= 3 || major > 1)
display_x11->have_randr13 = TRUE;
}
gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
}
#endif
/* initialize the display's screens */
display_x11->screen = _gdk_x11_screen_new (display, DefaultScreen (display_x11->xdisplay));
/* We need to initialize events after we have the screen
* structures in places
*/
_gdk_x11_xsettings_init (GDK_X11_SCREEN (display_x11->screen));
display->device_manager = _gdk_x11_device_manager_new (display);
gdk_event_init (display);
attr.window_type = GDK_WINDOW_TOPLEVEL;
attr.wclass = GDK_INPUT_OUTPUT;
attr.x = 10;
attr.y = 10;
attr.width = 10;
attr.height = 10;
attr.event_mask = 0;
display_x11->leader_gdk_window = gdk_window_new (GDK_X11_SCREEN (display_x11->screen)->root_window,
&attr, GDK_WA_X | GDK_WA_Y);
(_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
display_x11->leader_window_title_set = FALSE;
#ifdef HAVE_XFIXES
if (XFixesQueryExtension (display_x11->xdisplay,
&display_x11->xfixes_event_base,
&ignore))
{
display_x11->have_xfixes = TRUE;
gdk_x11_register_standard_event_type (display,
display_x11->xfixes_event_base,
XFixesNumberEvents);
}
else
#endif
display_x11->have_xfixes = FALSE;
#ifdef HAVE_XCOMPOSITE
if (XCompositeQueryExtension (display_x11->xdisplay,
&ignore, &ignore))
{
int major, minor;
XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
/* Prior to Composite version 0.4, composited windows clipped their
* parents, so you had to use IncludeInferiors to draw to the parent
* This isn't useful for our purposes, so require 0.4
*/
display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
}
else
#endif
display_x11->have_xcomposite = FALSE;
#ifdef HAVE_XDAMAGE
if (XDamageQueryExtension (display_x11->xdisplay,
&display_x11->xdamage_event_base,
&ignore))
{
display_x11->have_xdamage = TRUE;
gdk_x11_register_standard_event_type (display,
display_x11->xdamage_event_base,
XDamageNumberEvents);
}
else
#endif
display_x11->have_xdamage = FALSE;
display_x11->have_shapes = FALSE;
display_x11->have_input_shapes = FALSE;
if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &display_x11->shape_event_base, &ignore))
{
display_x11->have_shapes = TRUE;
#ifdef ShapeInput
if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
display_x11->have_input_shapes = (maj == 1 && min >= 1);
#endif
}
display_x11->trusted_client = TRUE;
{
Window root, child;
int rootx, rooty, winx, winy;
unsigned int xmask;
gdk_x11_display_error_trap_push (display);
XQueryPointer (display_x11->xdisplay,
GDK_X11_SCREEN (display_x11->screen)->xroot_window,
&root, &child, &rootx, &rooty, &winx, &winy, &xmask);
if (G_UNLIKELY (gdk_x11_display_error_trap_pop (display) == BadWindow))
{
g_warning ("Connection to display %s appears to be untrusted. Pointer and keyboard grabs and inter-client communication may not work as expected.", gdk_display_get_name (display));
display_x11->trusted_client = FALSE;
}
}
if (g_getenv ("GDK_SYNCHRONIZE"))
XSynchronize (display_x11->xdisplay, True);
class_hint = XAllocClassHint();
class_hint->res_name = (char *) g_get_prgname ();
class_hint->res_class = (char *)gdk_get_program_class ();
/* XmbSetWMProperties sets the RESOURCE_NAME environment variable
* from argv[0], so we just synthesize an argument array here.
*/
argc = 1;
argv[0] = (char *) g_get_prgname ();
XmbSetWMProperties (display_x11->xdisplay,
display_x11->leader_window,
NULL, NULL, argv, argc, NULL, NULL,
class_hint);
XFree (class_hint);
if (gdk_sm_client_id)
set_sm_client_id (display, gdk_sm_client_id);
pid = getpid ();
XChangeProperty (display_x11->xdisplay,
display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
/* We don't yet know a valid time. */
display_x11->user_time = 0;
#ifdef HAVE_XKB
{
gint xkb_major = XkbMajorVersion;
gint xkb_minor = XkbMinorVersion;
if (XkbLibraryVersion (&xkb_major, &xkb_minor))
{
xkb_major = XkbMajorVersion;
xkb_minor = XkbMinorVersion;
if (XkbQueryExtension (display_x11->xdisplay,
NULL, &display_x11->xkb_event_type, NULL,
&xkb_major, &xkb_minor))
{
Bool detectable_autorepeat_supported;
display_x11->use_xkb = TRUE;
XkbSelectEvents (display_x11->xdisplay,
XkbUseCoreKbd,
XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
/* keep this in sync with _gdk_x11_keymap_state_changed() */
XkbSelectEventDetails (display_x11->xdisplay,
XkbUseCoreKbd, XkbStateNotify,
XkbAllStateComponentsMask,
XkbModifierStateMask|XkbGroupStateMask);
XkbSetDetectableAutoRepeat (display_x11->xdisplay,
True,
&detectable_autorepeat_supported);
GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
detectable_autorepeat_supported ?
"supported" : "not supported"));
display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
}
}
}
#endif
display_x11->use_sync = FALSE;
#ifdef HAVE_XSYNC
{
int major, minor;
int error_base, event_base;
if (XSyncQueryExtension (display_x11->xdisplay,
&event_base, &error_base) &&
XSyncInitialize (display_x11->xdisplay,
&major, &minor))
display_x11->use_sync = TRUE;
}
#endif
gdk_x11_display_init_input (display);
_gdk_x11_screen_setup (display_x11->screen);
g_signal_emit_by_name (display, "opened");
return display;
}
/*
* XLib internal connection handling
*/
typedef struct _GdkInternalConnection GdkInternalConnection;
struct _GdkInternalConnection
{
gint fd;
GSource *source;
Display *display;
};
static gboolean
process_internal_connection (GIOChannel *gioc,
GIOCondition cond,
gpointer data)
{
GdkInternalConnection *connection = (GdkInternalConnection *)data;
gdk_threads_enter ();
XProcessInternalConnection ((Display*)connection->display, connection->fd);
gdk_threads_leave ();
return TRUE;
}
static gulong
gdk_x11_display_get_next_serial (GdkDisplay *display)
{
return NextRequest (GDK_DISPLAY_XDISPLAY (display));
}
static GdkInternalConnection *
gdk_add_connection_handler (Display *display,
guint fd)
{
GIOChannel *io_channel;
GdkInternalConnection *connection;
connection = g_new (GdkInternalConnection, 1);
connection->fd = fd;
connection->display = display;
io_channel = g_io_channel_unix_new (fd);
connection->source = g_io_create_watch (io_channel, G_IO_IN);
g_source_set_callback (connection->source,
(GSourceFunc)process_internal_connection, connection, NULL);
g_source_attach (connection->source, NULL);
g_io_channel_unref (io_channel);
return connection;
}
static void
gdk_remove_connection_handler (GdkInternalConnection *connection)
{
g_source_destroy (connection->source);
g_free (connection);
}
static void
gdk_internal_connection_watch (Display *display,
XPointer arg,
gint fd,
gboolean opening,
XPointer *watch_data)
{
if (opening)
*watch_data = (XPointer)gdk_add_connection_handler (display, fd);
else
gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
}
static const gchar *
gdk_x11_display_get_name (GdkDisplay *display)
{
return (gchar *) DisplayString (GDK_X11_DISPLAY (display)->xdisplay);
}
static GdkScreen *
gdk_x11_display_get_default_screen (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->screen;
}
gboolean
_gdk_x11_display_is_root_window (GdkDisplay *display,
Window xroot_window)
{
GdkX11Display *display_x11;
display_x11 = GDK_X11_DISPLAY (display);
return GDK_SCREEN_XROOTWIN (display_x11->screen) == xroot_window;
}
struct XPointerUngrabInfo {
GdkDisplay *display;
guint32 time;
};
static void
device_grab_update_callback (GdkDisplay *display,
gpointer data,
gulong serial)
{
GdkPointerWindowInfo *pointer_info;
GdkDevice *device = data;
pointer_info = _gdk_display_get_pointer_info (display, device);
_gdk_display_device_grab_update (display, device,
pointer_info->last_slave ? pointer_info->last_slave : device,
serial);
}
#define XSERVER_TIME_IS_LATER(time1, time2) \
( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) || \
(( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 )) \
)
void
_gdk_x11_display_update_grab_info (GdkDisplay *display,
GdkDevice *device,
gint status)
{
if (status == GrabSuccess)
_gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
}
void
_gdk_x11_display_update_grab_info_ungrab (GdkDisplay *display,
GdkDevice *device,
guint32 time,
gulong serial)
{
GdkDeviceGrabInfo *grab;
XFlush (GDK_DISPLAY_XDISPLAY (display));
grab = _gdk_display_get_last_device_grab (display, device);
if (grab &&
(time == GDK_CURRENT_TIME ||
grab->time == GDK_CURRENT_TIME ||
!XSERVER_TIME_IS_LATER (grab->time, time)))
{
grab->serial_end = serial;
_gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
}
}
static void
gdk_x11_display_beep (GdkDisplay *display)
{
#ifdef HAVE_XKB
XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None);
#else
XBell (GDK_DISPLAY_XDISPLAY (display), 0);
#endif
}
static void
gdk_x11_display_sync (GdkDisplay *display)
{
XSync (GDK_DISPLAY_XDISPLAY (display), False);
}
static void
gdk_x11_display_flush (GdkDisplay *display)
{
if (!display->closed)
XFlush (GDK_DISPLAY_XDISPLAY (display));
}
static gboolean
gdk_x11_display_has_pending (GdkDisplay *display)
{
return XPending (GDK_DISPLAY_XDISPLAY (display));
}
static GdkWindow *
gdk_x11_display_get_default_group (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_X11_DISPLAY (display)->leader_gdk_window;
}
/**
* gdk_x11_display_grab:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Call XGrabServer() on @display.
* To ungrab the display again, use gdk_x11_display_ungrab().
*
* gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
*
* Since: 2.2
**/
void
gdk_x11_display_grab (GdkDisplay *display)
{
GdkX11Display *display_x11;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_x11 = GDK_X11_DISPLAY (display);
if (display_x11->grab_count == 0)
XGrabServer (display_x11->xdisplay);
display_x11->grab_count++;
}
/**
* gdk_x11_display_ungrab:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Ungrab @display after it has been grabbed with
* gdk_x11_display_grab().
*
* Since: 2.2
**/
void
gdk_x11_display_ungrab (GdkDisplay *display)
{
GdkX11Display *display_x11;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_x11 = GDK_X11_DISPLAY (display);;
g_return_if_fail (display_x11->grab_count > 0);
display_x11->grab_count--;
if (display_x11->grab_count == 0)
{
XUngrabServer (display_x11->xdisplay);
XFlush (display_x11->xdisplay);
}
}
static void
gdk_x11_display_dispose (GObject *object)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
g_list_foreach (display_x11->input_devices, (GFunc) g_object_run_dispose, NULL);
_gdk_screen_close (display_x11->screen);
if (display_x11->event_source)
{
g_source_destroy (display_x11->event_source);
g_source_unref (display_x11->event_source);
display_x11->event_source = NULL;
}
G_OBJECT_CLASS (gdk_x11_display_parent_class)->dispose (object);
}
static void
gdk_x11_display_finalize (GObject *object)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
/* Keymap */
if (display_x11->keymap)
g_object_unref (display_x11->keymap);
_gdk_x11_cursor_display_finalize (GDK_DISPLAY (display_x11));
/* Empty the event queue */
_gdk_x11_display_free_translate_queue (GDK_DISPLAY (display_x11));
/* Atom Hashtable */
g_hash_table_destroy (display_x11->atom_from_virtual);
g_hash_table_destroy (display_x11->atom_to_virtual);
/* Leader Window */
XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
/* List of event window extraction functions */
g_slist_foreach (display_x11->event_types, (GFunc)g_free, NULL);
g_slist_free (display_x11->event_types);
/* input GdkDevice list */
g_list_free_full (display_x11->input_devices, g_object_unref);
/* input GdkWindow list */
g_list_free_full (display_x11->input_windows, g_free);
/* Free all GdkScreens */
g_object_unref (display_x11->screen);
g_free (display_x11->startup_notification_id);
/* X ID hashtable */
g_hash_table_destroy (display_x11->xid_ht);
XCloseDisplay (display_x11->xdisplay);
/* error traps */
while (display_x11->error_traps != NULL)
{
GdkErrorTrap *trap = display_x11->error_traps->data;
display_x11->error_traps =
g_slist_delete_link (display_x11->error_traps,
display_x11->error_traps);
if (trap->end_sequence == 0)
g_warning ("Display finalized with an unpopped error trap");
g_slice_free (GdkErrorTrap, trap);
}
G_OBJECT_CLASS (gdk_x11_display_parent_class)->finalize (object);
}
/**
* gdk_x11_lookup_xdisplay:
* @xdisplay: a pointer to an X Display
*
* Find the #GdkDisplay corresponding to @xdisplay, if any exists.
*
* Returns: (transfer none) (type GdkX11Display): the #GdkDisplay, if found, otherwise %NULL.
*
* Since: 2.2
**/
GdkDisplay *
gdk_x11_lookup_xdisplay (Display *xdisplay)
{
GSList *list, *l;
GdkDisplay *display;
display = NULL;
list = gdk_display_manager_list_displays (gdk_display_manager_get ());
for (l = list; l; l = l->next)
{
if (GDK_DISPLAY_XDISPLAY (l->data) == xdisplay)
{
display = l->data;
break;
}
}
g_slist_free (list);
return display;
}
/**
* _gdk_x11_display_screen_for_xrootwin:
* @display: a #GdkDisplay
* @xrootwin: window ID for one of of the screen’s of the display.
*
* Given the root window ID of one of the screen’s of a #GdkDisplay,
* finds the screen.
*
* Returns: (transfer none): the #GdkScreen corresponding to
* @xrootwin, or %NULL.
**/
GdkScreen *
_gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
Window xrootwin)
{
GdkScreen *screen = gdk_display_get_default_screen (display);
if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
return screen;
return NULL;
}
/**
* gdk_x11_display_get_xdisplay:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Returns the X display of a #GdkDisplay.
*
* Returns: (transfer none): an X display
*
* Since: 2.2
*/
Display *
gdk_x11_display_get_xdisplay (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_X11_DISPLAY (display)->xdisplay;
}
static void
gdk_x11_display_make_default (GdkDisplay *display)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
const gchar *startup_id;
g_free (display_x11->startup_notification_id);
display_x11->startup_notification_id = NULL;
startup_id = g_getenv ("DESKTOP_STARTUP_ID");
if (startup_id && *startup_id != '\0')
{
if (!g_utf8_validate (startup_id, -1, NULL))
g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
else
gdk_x11_display_set_startup_notification_id (display, startup_id);
/* Clear the environment variable so it won't be inherited by
* child processes and confuse things.
*/
g_unsetenv ("DESKTOP_STARTUP_ID");
}
}
static void
broadcast_xmessage (GdkDisplay *display,
const char *message_type,
const char *message_type_begin,
const char *message)
{
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
GdkScreen *screen = gdk_display_get_default_screen (display);
GdkWindow *root_window = gdk_screen_get_root_window (screen);
Window xroot_window = GDK_WINDOW_XID (root_window);
Atom type_atom;
Atom type_atom_begin;
Window xwindow;
if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
return;
{
XSetWindowAttributes attrs;
attrs.override_redirect = True;
attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
xwindow =
XCreateWindow (xdisplay,
xroot_window,
-100, -100, 1, 1,
0,
CopyFromParent,
CopyFromParent,
(Visual *)CopyFromParent,
CWOverrideRedirect | CWEventMask,
&attrs);
}
type_atom = gdk_x11_get_xatom_by_name_for_display (display,
message_type);
type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display,
message_type_begin);
{
XClientMessageEvent xclient;
const char *src;
const char *src_end;
char *dest;
char *dest_end;
memset(&xclient, 0, sizeof (xclient));
xclient.type = ClientMessage;
xclient.message_type = type_atom_begin;
xclient.display =xdisplay;
xclient.window = xwindow;
xclient.format = 8;
src = message;
src_end = message + strlen (message) + 1; /* +1 to include nul byte */
while (src != src_end)
{
dest = &xclient.data.b[0];
dest_end = dest + 20;
while (dest != dest_end &&
src != src_end)
{
*dest = *src;
++dest;
++src;
}
while (dest != dest_end)
{
*dest = 0;
++dest;
}
XSendEvent (xdisplay,
xroot_window,
False,
PropertyChangeMask,
(XEvent *)&xclient);
xclient.message_type = type_atom;
}
}
XDestroyWindow (xdisplay, xwindow);
XFlush (xdisplay);
}
/**
* gdk_x11_display_broadcast_startup_message:
* @display: (type GdkX11Display): a #GdkDisplay
* @message_type: startup notification message type ("new", "change",
* or "remove")
* @...: a list of key/value pairs (as strings), terminated by a
* %NULL key. (A %NULL value for a key will cause that key to be
* skipped in the output.)
*
* Sends a startup notification message of type @message_type to
* @display.
*
* This is a convenience function for use by code that implements the
* freedesktop startup notification specification. Applications should
* not normally need to call it directly. See the
* [Startup Notification Protocol specification](http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt)
* for definitions of the message types and keys that can be used.
*
* Since: 2.12
**/
void
gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
const char *message_type,
...)
{
GString *message;
va_list ap;
const char *key, *value, *p;
message = g_string_new (message_type);
g_string_append_c (message, ':');
va_start (ap, message_type);
while ((key = va_arg (ap, const char *)))
{
value = va_arg (ap, const char *);
if (!value)
continue;
g_string_append_printf (message, " %s=\"", key);
for (p = value; *p; p++)
{
switch (*p)
{
case ' ':
case '"':
case '\\':
g_string_append_c (message, '\\');
break;
}
g_string_append_c (message, *p);
}
g_string_append_c (message, '\"');
}
va_end (ap);
broadcast_xmessage (display,
"_NET_STARTUP_INFO",
"_NET_STARTUP_INFO_BEGIN",
message->str);
g_string_free (message, TRUE);
}
static void
gdk_x11_display_notify_startup_complete (GdkDisplay *display,
const gchar *startup_id)
{
if (startup_id == NULL)
{
startup_id = GDK_X11_DISPLAY (display)->startup_notification_id;
if (startup_id == NULL)
return;
}
gdk_x11_display_broadcast_startup_message (display, "remove",
"ID", startup_id,
NULL);
}
static gboolean
gdk_x11_display_supports_selection_notification (GdkDisplay *display)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
return display_x11->have_xfixes;
}
static gboolean
gdk_x11_display_request_selection_notification (GdkDisplay *display,
GdkAtom selection)
{
#ifdef HAVE_XFIXES
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
Atom atom;
if (display_x11->have_xfixes)
{
atom = gdk_x11_atom_to_xatom_for_display (display,
selection);
XFixesSelectSelectionInput (display_x11->xdisplay,
display_x11->leader_window,
atom,
XFixesSetSelectionOwnerNotifyMask |
XFixesSelectionWindowDestroyNotifyMask |
XFixesSelectionClientCloseNotifyMask);
return TRUE;
}
else
#endif
return FALSE;
}
static gboolean
gdk_x11_display_supports_clipboard_persistence (GdkDisplay *display)
{
Atom clipboard_manager;
/* It might make sense to cache this */
clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
return XGetSelectionOwner (GDK_X11_DISPLAY (display)->xdisplay, clipboard_manager) != None;
}
static void
gdk_x11_display_store_clipboard (GdkDisplay *display,
GdkWindow *clipboard_window,
guint32 time_,
const GdkAtom *targets,
gint n_targets)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
Atom clipboard_manager, save_targets;
g_return_if_fail (GDK_WINDOW_IS_X11 (clipboard_window));
clipboard_manager = gdk_x11_get_xatom_by_name_for_display (display, "CLIPBOARD_MANAGER");
save_targets = gdk_x11_get_xatom_by_name_for_display (display, "SAVE_TARGETS");
gdk_x11_display_error_trap_push (display);
if (XGetSelectionOwner (display_x11->xdisplay, clipboard_manager) != None)
{
Atom property_name = None;
Atom *xatoms;
int i;
if (n_targets > 0)
{
property_name = gdk_x11_get_xatom_by_name_for_display (display, "GDK_SELECTION");
xatoms = g_new (Atom, n_targets);
for (i = 0; i < n_targets; i++)
xatoms[i] = gdk_x11_atom_to_xatom_for_display (display, targets[i]);
XChangeProperty (display_x11->xdisplay, GDK_WINDOW_XID (clipboard_window),
property_name, XA_ATOM,
32, PropModeReplace, (guchar *)xatoms, n_targets);
g_free (xatoms);
}
XConvertSelection (display_x11->xdisplay,
clipboard_manager, save_targets, property_name,
GDK_WINDOW_XID (clipboard_window), time_);
}
gdk_x11_display_error_trap_pop_ignored (display);
}
/**
* gdk_x11_display_get_user_time:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Returns the timestamp of the last user interaction on
* @display. The timestamp is taken from events caused
* by user interaction such as key presses or pointer
* movements. See gdk_x11_window_set_user_time().
*
* Returns: the timestamp of the last user interaction
*
* Since: 2.8
*/
guint32
gdk_x11_display_get_user_time (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->user_time;
}
static gboolean
gdk_x11_display_supports_shapes (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->have_shapes;
}
static gboolean
gdk_x11_display_supports_input_shapes (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->have_input_shapes;
}
/**
* gdk_x11_display_get_startup_notification_id:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Gets the startup notification ID for a display.
*
* Returns: the startup notification ID for @display
*
* Since: 2.12
*/
const gchar *
gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->startup_notification_id;
}
/**
* gdk_x11_display_set_startup_notification_id:
* @display: (type GdkX11Display): a #GdkDisplay
* @startup_id: the startup notification ID (must be valid utf8)
*
* Sets the startup notification ID for a display.
*
* This is usually taken from the value of the DESKTOP_STARTUP_ID
* environment variable, but in some cases (such as the application not
* being launched using exec()) it can come from other sources.
*
* If the ID contains the string "_TIME" then the portion following that
* string is taken to be the X11 timestamp of the event that triggered
* the application to be launched and the GDK current event time is set
* accordingly.
*
* The startup ID is also what is used to signal that the startup is
* complete (for example, when opening a window or when calling
* gdk_notify_startup_complete()).
*
* Since: 3.0
**/
void
gdk_x11_display_set_startup_notification_id (GdkDisplay *display,
const gchar *startup_id)
{
GdkX11Display *display_x11;
gchar *time_str;
display_x11 = GDK_X11_DISPLAY (display);
g_free (display_x11->startup_notification_id);
display_x11->startup_notification_id = g_strdup (startup_id);
/* Find the launch time from the startup_id, if it's there. Newer spec
* states that the startup_id is of the form <unique>_TIME<timestamp>
*/
time_str = g_strrstr (startup_id, "_TIME");
if (time_str != NULL)
{
gulong retval;
gchar *end;
errno = 0;
/* Skip past the "_TIME" part */
time_str += 5;
retval = strtoul (time_str, &end, 0);
if (end != time_str && errno == 0)
display_x11->user_time = retval;
}
/* Set the startup id on the leader window so it
* applies to all windows we create on this display
*/
XChangeProperty (display_x11->xdisplay,
display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
PropModeReplace,
(guchar *)startup_id, strlen (startup_id));
}
static gboolean
gdk_x11_display_supports_composite (GdkDisplay *display)
{
GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
return x11_display->have_xcomposite &&
x11_display->have_xdamage &&
x11_display->have_xfixes;
}
static GList *
gdk_x11_display_list_devices (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_X11_DISPLAY (display)->input_devices;
}
/**
* gdk_x11_register_standard_event_type:
* @display: (type GdkX11Display): a #GdkDisplay
* @event_base: first event type code to register
* @n_events: number of event type codes to register
*
* Registers interest in receiving extension events with type codes
* between @event_base and `event_base + n_events - 1`.
* The registered events must have the window field in the same place
* as core X events (this is not the case for e.g. XKB extension events).
*
* If an event type is registered, events of this type will go through
* global and window-specific filters (see gdk_window_add_filter()).
* Unregistered events will only go through global filters.
* GDK may register the events of some X extensions on its own.
*
* This function should only be needed in unusual circumstances, e.g.
* when filtering XInput extension events on the root window.
*
* Since: 2.4
**/
void
gdk_x11_register_standard_event_type (GdkDisplay *display,
gint event_base,
gint n_events)
{
GdkEventTypeX11 *event_type;
GdkX11Display *display_x11;
display_x11 = GDK_X11_DISPLAY (display);
event_type = g_new (GdkEventTypeX11, 1);
event_type->base = event_base;
event_type->n_events = n_events;
display_x11->event_types = g_slist_prepend (display_x11->event_types, event_type);
}
/* look up the extension name for a given major opcode. grubs around in
* xlib to do it since a) it’s already cached there b) XQueryExtension
* emits protocol so we can’t use it in an error handler.
*/
static const char *
_gdk_x11_decode_request_code(Display *dpy, int code)
{
_XExtension *ext;
if (code < 128)
return "core protocol";
for (ext = dpy->ext_procs; ext; ext = ext->next)
{
if (ext->codes.major_opcode == code)
return ext->name;
}
return "unknown";
}
/* compare X sequence numbers handling wraparound */
#define SEQUENCE_COMPARE(a,op,b) (((long) (a) - (long) (b)) op 0)
/* delivers an error event from the error handler in gdkmain-x11.c */
void
_gdk_x11_display_error_event (GdkDisplay *display,
XErrorEvent *error)
{
GdkX11Display *display_x11;
GSList *tmp_list;
gboolean ignore;
display_x11 = GDK_X11_DISPLAY (display);
ignore = FALSE;
for (tmp_list = display_x11->error_traps;
tmp_list != NULL;
tmp_list = tmp_list->next)
{
GdkErrorTrap *trap;
trap = tmp_list->data;
if (SEQUENCE_COMPARE (trap->start_sequence, <=, error->serial) &&
(trap->end_sequence == 0 ||
SEQUENCE_COMPARE (trap->end_sequence, >, error->serial)))
{
ignore = TRUE;
trap->error_code = error->error_code;
break; /* only innermost trap gets the error code */
}
}
if (!ignore)
{
gchar buf[64];
gchar *msg;
XGetErrorText (display_x11->xdisplay, error->error_code, buf, 63);
msg =
g_strdup_printf ("The program '%s' received an X Window System error.\n"
"This probably reflects a bug in the program.\n"
"The error was '%s'.\n"
" (Details: serial %ld error_code %d request_code %d (%s) minor_code %d)\n"
" (Note to programmers: normally, X errors are reported asynchronously;\n"
" that is, you will receive the error a while after causing it.\n"
" To debug your program, run it with the GDK_SYNCHRONIZE environment\n"
" variable to change this behavior. You can then get a meaningful\n"
" backtrace from your debugger if you break on the gdk_x_error() function.)",
g_get_prgname (),
buf,
error->serial,
error->error_code,
error->request_code,
_gdk_x11_decode_request_code(display_x11->xdisplay,
error->request_code),
error->minor_code);
#ifdef G_ENABLE_DEBUG
g_error ("%s", msg);
#else /* !G_ENABLE_DEBUG */
g_warning ("%s\n", msg);
_exit (1);
#endif /* G_ENABLE_DEBUG */
}
}
static void
delete_outdated_error_traps (GdkX11Display *display_x11)
{
GSList *tmp_list;
gulong processed_sequence;
processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
tmp_list = display_x11->error_traps;
while (tmp_list != NULL)
{
GdkErrorTrap *trap = tmp_list->data;
if (trap->end_sequence != 0 &&
SEQUENCE_COMPARE (trap->end_sequence, <=, processed_sequence))
{
GSList *free_me = tmp_list;
tmp_list = tmp_list->next;
display_x11->error_traps =
g_slist_delete_link (display_x11->error_traps, free_me);
g_slice_free (GdkErrorTrap, trap);
}
else
{
tmp_list = tmp_list->next;
}
}
}
/**
* gdk_x11_display_error_trap_push:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Begins a range of X requests on @display for which X error events
* will be ignored. Unignored errors (when no trap is pushed) will abort
* the application. Use gdk_x11_display_error_trap_pop() or
* gdk_x11_display_error_trap_pop_ignored()to lift a trap pushed
* with this function.
*
* See also gdk_error_trap_push() to push a trap on all displays.
*
* Since: 3.0
*/
void
gdk_x11_display_error_trap_push (GdkDisplay *display)
{
GdkX11Display *display_x11;
GdkErrorTrap *trap;
display_x11 = GDK_X11_DISPLAY (display);
delete_outdated_error_traps (display_x11);
/* set up the Xlib callback to tell us about errors */
_gdk_x11_error_handler_push ();
trap = g_slice_new0 (GdkErrorTrap);
trap->start_sequence = XNextRequest (display_x11->xdisplay);
trap->error_code = Success;
display_x11->error_traps =
g_slist_prepend (display_x11->error_traps, trap);
}
static gint
gdk_x11_display_error_trap_pop_internal (GdkDisplay *display,
gboolean need_code)
{
GdkX11Display *display_x11;
GdkErrorTrap *trap;
GSList *tmp_list;
int result;
display_x11 = GDK_X11_DISPLAY (display);
g_return_val_if_fail (display_x11->error_traps != NULL, Success);
/* Find the first trap that hasn't been popped already */
trap = NULL; /* quiet gcc */
for (tmp_list = display_x11->error_traps;
tmp_list != NULL;
tmp_list = tmp_list->next)
{
trap = tmp_list->data;
if (trap->end_sequence == 0)
break;
}
g_return_val_if_fail (trap != NULL, Success);
g_assert (trap->end_sequence == 0);
/* May need to sync to fill in trap->error_code if we care about
* getting an error code.
*/
if (need_code)
{
gulong processed_sequence;
gulong next_sequence;
next_sequence = XNextRequest (display_x11->xdisplay);
processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
/* If our last request was already processed, there is no point
* in syncing. i.e. if last request was a round trip (or even if
* we got an event with the serial of a non-round-trip)
*/
if ((next_sequence - 1) != processed_sequence)
{
XSync (display_x11->xdisplay, False);
}
result = trap->error_code;
}
else
{
result = Success;
}
/* record end of trap, giving us a range of
* error sequences we'll ignore.
*/
trap->end_sequence = XNextRequest (display_x11->xdisplay);
/* remove the Xlib callback */
_gdk_x11_error_handler_pop ();
/* we may already be outdated */
delete_outdated_error_traps (display_x11);
return result;
}
/**
* gdk_x11_display_set_window_scale:
* @display: (type GdkX11Display): the display
* @scale: The new scale value
*
* Forces a specific window scale for all windows on this display,
* instead of using the default or user configured scale. This
* is can be used to disable scaling support by setting @scale to
* 1, or to programmatically set the window scale.
*
* Once the scale is set by this call it will not change in response
* to later user configuration changes.
*
* Since: 3.10
*/
void
gdk_x11_display_set_window_scale (GdkDisplay *display,
gint scale)
{
GdkX11Screen *x11_screen;
gboolean need_reread_settings = FALSE;
g_return_if_fail (GDK_IS_X11_DISPLAY (display));
scale = MAX (scale, 1);
#ifndef HAVE_CAIRO_SURFACE_SET_DEVICE_SCALE
/* Without cairo support we can't support any scale but 1 */
scale = 1;
#endif
x11_screen = GDK_X11_SCREEN (GDK_X11_DISPLAY (display)->screen);
if (!x11_screen->fixed_window_scale)
{
x11_screen->fixed_window_scale = TRUE;
/* We treat screens with a window scale set differently when
* reading xsettings, so we need to reread
*/
need_reread_settings = TRUE;
}
_gdk_x11_screen_set_window_scale (x11_screen, scale);
if (need_reread_settings)
_gdk_x11_settings_force_reread (x11_screen);
}
/**
* gdk_x11_display_error_trap_pop:
* @display: (type GdkX11Display): the display
*
* Pops the error trap pushed by gdk_x11_display_error_trap_push().
* Will XSync() if necessary and will always block until
* the error is known to have occurred or not occurred,
* so the error code can be returned.
*
* If you don’t need to use the return value,
* gdk_x11_display_error_trap_pop_ignored() would be more efficient.
*
* See gdk_error_trap_pop() for the all-displays-at-once
* equivalent.
*
* Since: 3.0
*
* Returns: X error code or 0 on success
*/
gint
gdk_x11_display_error_trap_pop (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_X11_DISPLAY (display), Success);
return gdk_x11_display_error_trap_pop_internal (display, TRUE);
}
/**
* gdk_x11_display_error_trap_pop_ignored:
* @display: (type GdkX11Display): the display
*
* Pops the error trap pushed by gdk_x11_display_error_trap_push().
* Does not block to see if an error occurred; merely records the
* range of requests to ignore errors for, and ignores those errors
* if they arrive asynchronously.
*
* See gdk_error_trap_pop_ignored() for the all-displays-at-once
* equivalent.
*
* Since: 3.0
*/
void
gdk_x11_display_error_trap_pop_ignored (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_X11_DISPLAY (display));
gdk_x11_display_error_trap_pop_internal (display, FALSE);
}
/**
* gdk_x11_set_sm_client_id:
* @sm_client_id: the client id assigned by the session manager when the
* connection was opened, or %NULL to remove the property.
*
* Sets the `SM_CLIENT_ID` property on the application’s leader window so that
* the window manager can save the application’s state using the X11R6 ICCCM
* session management protocol.
*
* See the X Session Management Library documentation for more information on
* session management and the Inter-Client Communication Conventions Manual
*
* Since: 2.24
*/
void
gdk_x11_set_sm_client_id (const gchar *sm_client_id)
{
GSList *displays, *l;
g_free (gdk_sm_client_id);
gdk_sm_client_id = g_strdup (sm_client_id);
displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
for (l = displays; l; l = l->next)
set_sm_client_id (l->data, sm_client_id);
g_slist_free (displays);
}
static void
gdk_x11_display_event_data_copy (GdkDisplay *display,
const GdkEvent *src,
GdkEvent *dst)
{
}
static void
gdk_x11_display_event_data_free (GdkDisplay *display,
GdkEvent *event)
{
}
static gint
pop_error_trap (GdkDisplay *display,
gboolean ignored)
{
if (ignored)
{
gdk_x11_display_error_trap_pop_ignored (display);
return Success;
}
else
{
return gdk_x11_display_error_trap_pop (display);
}
}
static GdkKeymap *
gdk_x11_display_get_keymap (GdkDisplay *display)
{
GdkX11Display *display_x11;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
display_x11 = GDK_X11_DISPLAY (display);
if (!display_x11->keymap)
display_x11->keymap = g_object_new (GDK_TYPE_X11_KEYMAP, NULL);
display_x11->keymap->display = display;
return display_x11->keymap;
}
static void
gdk_x11_display_class_init (GdkX11DisplayClass * class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
object_class->dispose = gdk_x11_display_dispose;
object_class->finalize = gdk_x11_display_finalize;
display_class->window_type = GDK_TYPE_X11_WINDOW;
display_class->get_name = gdk_x11_display_get_name;
display_class->get_default_screen = gdk_x11_display_get_default_screen;
display_class->beep = gdk_x11_display_beep;
display_class->sync = gdk_x11_display_sync;
display_class->flush = gdk_x11_display_flush;
display_class->make_default = gdk_x11_display_make_default;
display_class->has_pending = gdk_x11_display_has_pending;
display_class->queue_events = _gdk_x11_display_queue_events;
display_class->get_default_group = gdk_x11_display_get_default_group;
display_class->supports_selection_notification = gdk_x11_display_supports_selection_notification;
display_class->request_selection_notification = gdk_x11_display_request_selection_notification;
display_class->supports_clipboard_persistence = gdk_x11_display_supports_clipboard_persistence;
display_class->store_clipboard = gdk_x11_display_store_clipboard;
display_class->supports_shapes = gdk_x11_display_supports_shapes;
display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes;
display_class->supports_composite = gdk_x11_display_supports_composite;
display_class->list_devices = gdk_x11_display_list_devices;
display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context;
display_class->get_cursor_for_type = _gdk_x11_display_get_cursor_for_type;
display_class->get_cursor_for_name = _gdk_x11_display_get_cursor_for_name;
display_class->get_cursor_for_surface = _gdk_x11_display_get_cursor_for_surface;
display_class->get_default_cursor_size = _gdk_x11_display_get_default_cursor_size;
display_class->get_maximal_cursor_size = _gdk_x11_display_get_maximal_cursor_size;
display_class->supports_cursor_alpha = _gdk_x11_display_supports_cursor_alpha;
display_class->supports_cursor_color = _gdk_x11_display_supports_cursor_color;
display_class->before_process_all_updates = _gdk_x11_display_before_process_all_updates;
display_class->after_process_all_updates = _gdk_x11_display_after_process_all_updates;
display_class->get_next_serial = gdk_x11_display_get_next_serial;
display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete;
display_class->event_data_copy = gdk_x11_display_event_data_copy;
display_class->event_data_free = gdk_x11_display_event_data_free;
display_class->create_window_impl = _gdk_x11_display_create_window_impl;
display_class->get_keymap = gdk_x11_display_get_keymap;
display_class->push_error_trap = gdk_x11_display_error_trap_push;
display_class->pop_error_trap = pop_error_trap;
display_class->get_selection_owner = _gdk_x11_display_get_selection_owner;
display_class->set_selection_owner = _gdk_x11_display_set_selection_owner;
display_class->send_selection_notify = _gdk_x11_display_send_selection_notify;
display_class->get_selection_property = _gdk_x11_display_get_selection_property;
display_class->convert_selection = _gdk_x11_display_convert_selection;
display_class->text_property_to_utf8_list = _gdk_x11_display_text_property_to_utf8_list;
display_class->utf8_to_string_target = _gdk_x11_display_utf8_to_string_target;
display_class->destroy_gl_context = gdk_x11_display_destroy_gl_context;
display_class->make_gl_context_current = gdk_x11_display_make_gl_context_current;
_gdk_x11_windowing_init ();
}
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