AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity
fb53568c04
gtk2/gdk/x11/gdkdisplay-x11.c
Benjamin Otte 813e9c95fb gdk: Add Cairo context implementations for all backends 
And make the GdkCairoContext as abstract.

The idea of this and thje following commits is to get rid of all
Cairo code in gdksurface.c (and $backend/gdksurface-$backend.c)
by moving that code into the Cairo context files.
In particular, the GdkSurfaceClass.begin_frame/end_frame()
functions (which are currently exclusively used by the Cairo code
should end up being moved to GdkDrawContextClass.begin/end_frame().

This has multiple benefits:

1. It unifies code between the different drawing contexts.
   GL lives in GLContext, Vulkan in VulkanContext and Cairo in
   CairoContext. In turn, this makes it way easier to reason about
   what's going on in surface-specific code. Currently pretty much
   all backends do things wrong when they want to sync to drawing
   or to the frame clock.

2. It makes the API of GdkSurface smaller. No drawing code (apart
   from creating the contexts) needs to remain.

3. It confines Cairo to the Drawcontext, thereby making it way
   more obvious when backends are still using it in situations
   where it may now conflict with OpenGL (like when doing the dnd
   failed animation or in the APIs that I'm removing in this
   branch).

4. We have 2 very different types of Cairo contexts: The X/win32
   model, where we have a natively supported Cairo backend but do
   double buffering ourselves and use similar surfaces and the
   Wayland/Broadway model where we use image surfaces without any
   Cairo backend support and have to submit the buffers manually.
   By not sharing code between those 2 versions, we can make the
   actual code way smaller. We also get around the need to create
   1x1 image surfaces in the Wayland backend where we pretend
   there's a native Cairo surface.
2018-04-24 23:16:12 +02:00

3109 lines
89 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* 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"
#define VK_USE_PLATFORM_XLIB_KHR
#include "gdkdisplay-x11.h"
#include "gdkdisplayprivate.h"
#include "gdkasync.h"
#include "gdkdisplay.h"
#include "gdkeventsource.h"
#include "gdkeventtranslator.h"
#include "gdkframeclockprivate.h"
#include "gdkinternals.h"
#include "gdkdeviceprivate.h"
#include "gdkkeysprivate.h"
#include "gdkmarshalers.h"
#include "xsettings-client.h"
#include "gdkclipboard-x11.h"
#include "gdkprivate-x11.h"
#include "gdkscreen-x11.h"
#include "gdkcairocontext-x11.h"
#include "gdkglcontext-x11.h"
#include "gdkvulkancontext-x11.h"
#include "gdk-private.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
enum {
XEVENT,
LAST_SIGNAL
};
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,
const 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",
"GDK_VISUALS"
};
static char *gdk_sm_client_id;
static guint signals[LAST_SIGNAL] = { 0 };
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)
{
display->monitors = g_ptr_array_new_with_free_func (g_object_unref);
}
static void
gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface)
{
iface->translate_event = gdk_x11_display_translate_event;
}
#define ANY_EDGE_TILED (GDK_SURFACE_STATE_LEFT_TILED | \
GDK_SURFACE_STATE_RIGHT_TILED | \
GDK_SURFACE_STATE_TOP_TILED | \
GDK_SURFACE_STATE_BOTTOM_TILED)
static void
do_edge_constraint_state_check (GdkSurface *surface,
GdkSurfaceState old_state,
GdkSurfaceState *set,
GdkSurfaceState *unset)
{
GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface);
GdkSurfaceState local_set, local_unset;
guint edge_constraints;
local_set = *set;
local_unset = *unset;
edge_constraints = toplevel->edge_constraints;
/* If the WM doesn't support _GTK_EDGE_CONSTRAINTS, rely on the fallback
* implementation. If it supports _GTK_EDGE_CONSTRAINTS, arrange for
* GDK_SURFACE_STATE_TILED to be set if any edge is tiled, and cleared
* if no edge is tiled.
*/
if (!gdk_surface_supports_edge_constraints (surface))
{
/* 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_SURFACE_STATE_TILED)
{
if (!toplevel->have_maxvert)
local_unset |= GDK_SURFACE_STATE_TILED;
}
else
{
if (toplevel->have_maxvert && !toplevel->have_maxhorz)
local_set |= GDK_SURFACE_STATE_TILED;
}
}
else
{
if (old_state & GDK_SURFACE_STATE_TILED)
{
if (!(edge_constraints & ANY_EDGE_TILED))
local_unset |= GDK_SURFACE_STATE_TILED;
}
else
{
if (edge_constraints & ANY_EDGE_TILED)
local_set |= GDK_SURFACE_STATE_TILED;
}
}
/* Top edge */
if (old_state & GDK_SURFACE_STATE_TOP_TILED)
{
if ((edge_constraints & GDK_SURFACE_STATE_TOP_TILED) == 0)
local_unset |= GDK_SURFACE_STATE_TOP_TILED;
}
else
{
if (edge_constraints & GDK_SURFACE_STATE_TOP_TILED)
local_set |= GDK_SURFACE_STATE_TOP_TILED;
}
if (old_state & GDK_SURFACE_STATE_TOP_RESIZABLE)
{
if ((edge_constraints & GDK_SURFACE_STATE_TOP_RESIZABLE) == 0)
local_unset |= GDK_SURFACE_STATE_TOP_RESIZABLE;
}
else
{
if (edge_constraints & GDK_SURFACE_STATE_TOP_RESIZABLE)
local_set |= GDK_SURFACE_STATE_TOP_RESIZABLE;
}
/* Right edge */
if (old_state & GDK_SURFACE_STATE_RIGHT_TILED)
{
if ((edge_constraints & GDK_SURFACE_STATE_RIGHT_TILED) == 0)
local_unset |= GDK_SURFACE_STATE_RIGHT_TILED;
}
else
{
if (edge_constraints & GDK_SURFACE_STATE_RIGHT_TILED)
local_set |= GDK_SURFACE_STATE_RIGHT_TILED;
}
if (old_state & GDK_SURFACE_STATE_RIGHT_RESIZABLE)
{
if ((edge_constraints & GDK_SURFACE_STATE_RIGHT_RESIZABLE) == 0)
local_unset |= GDK_SURFACE_STATE_RIGHT_RESIZABLE;
}
else
{
if (edge_constraints & GDK_SURFACE_STATE_RIGHT_RESIZABLE)
local_set |= GDK_SURFACE_STATE_RIGHT_RESIZABLE;
}
/* Bottom edge */
if (old_state & GDK_SURFACE_STATE_BOTTOM_TILED)
{
if ((edge_constraints & GDK_SURFACE_STATE_BOTTOM_TILED) == 0)
local_unset |= GDK_SURFACE_STATE_BOTTOM_TILED;
}
else
{
if (edge_constraints & GDK_SURFACE_STATE_BOTTOM_TILED)
local_set |= GDK_SURFACE_STATE_BOTTOM_TILED;
}
if (old_state & GDK_SURFACE_STATE_BOTTOM_RESIZABLE)
{
if ((edge_constraints & GDK_SURFACE_STATE_BOTTOM_RESIZABLE) == 0)
local_unset |= GDK_SURFACE_STATE_BOTTOM_RESIZABLE;
}
else
{
if (edge_constraints & GDK_SURFACE_STATE_BOTTOM_RESIZABLE)
local_set |= GDK_SURFACE_STATE_BOTTOM_RESIZABLE;
}
/* Left edge */
if (old_state & GDK_SURFACE_STATE_LEFT_TILED)
{
if ((edge_constraints & GDK_SURFACE_STATE_LEFT_TILED) == 0)
local_unset |= GDK_SURFACE_STATE_LEFT_TILED;
}
else
{
if (edge_constraints & GDK_SURFACE_STATE_LEFT_TILED)
local_set |= GDK_SURFACE_STATE_LEFT_TILED;
}
if (old_state & GDK_SURFACE_STATE_LEFT_RESIZABLE)
{
if ((edge_constraints & GDK_SURFACE_STATE_LEFT_RESIZABLE) == 0)
local_unset |= GDK_SURFACE_STATE_LEFT_RESIZABLE;
}
else
{
if (edge_constraints & GDK_SURFACE_STATE_LEFT_RESIZABLE)
local_set |= GDK_SURFACE_STATE_LEFT_RESIZABLE;
}
*set = local_set;
*unset = local_unset;
}
static void
do_net_wm_state_changes (GdkSurface *surface)
{
GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface);
GdkSurfaceState old_state, set, unset;
if (GDK_SURFACE_DESTROYED (surface) ||
gdk_surface_get_surface_type (surface) != GDK_SURFACE_TOPLEVEL)
return;
old_state = gdk_surface_get_state (surface);
set = unset = 0;
/* For found_sticky to remain TRUE, we have to also be on desktop
* 0xFFFFFFFF
*/
if (old_state & GDK_SURFACE_STATE_STICKY)
{
if (!(toplevel->have_sticky && toplevel->on_all_desktops))
unset |= GDK_SURFACE_STATE_STICKY;
}
else
{
if (toplevel->have_sticky && toplevel->on_all_desktops)
set |= GDK_SURFACE_STATE_STICKY;
}
if (old_state & GDK_SURFACE_STATE_FULLSCREEN)
{
if (!toplevel->have_fullscreen)
unset |= GDK_SURFACE_STATE_FULLSCREEN;
}
else
{
if (toplevel->have_fullscreen)
set |= GDK_SURFACE_STATE_FULLSCREEN;
}
/* Our "maximized" means both vertical and horizontal; if only one,
* we don't expose that via GDK
*/
if (old_state & GDK_SURFACE_STATE_MAXIMIZED)
{
if (!(toplevel->have_maxvert && toplevel->have_maxhorz))
unset |= GDK_SURFACE_STATE_MAXIMIZED;
}
else
{
if (toplevel->have_maxvert && toplevel->have_maxhorz)
set |= GDK_SURFACE_STATE_MAXIMIZED;
}
if (old_state & GDK_SURFACE_STATE_FOCUSED)
{
if (!toplevel->have_focused)
unset |= GDK_SURFACE_STATE_FOCUSED;
}
else
{
if (toplevel->have_focused)
set |= GDK_SURFACE_STATE_FOCUSED;
}
if (old_state & GDK_SURFACE_STATE_ICONIFIED)
{
if (!toplevel->have_hidden)
unset |= GDK_SURFACE_STATE_ICONIFIED;
}
else
{
if (toplevel->have_hidden)
set |= GDK_SURFACE_STATE_ICONIFIED;
}
/* Update edge constraints and tiling */
do_edge_constraint_state_check (surface, old_state, &set, &unset);
gdk_synthesize_surface_state (surface, unset, set);
}
static void
gdk_check_wm_desktop_changed (GdkSurface *surface)
{
GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface);
GdkDisplay *display = GDK_SURFACE_DISPLAY (surface);
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_SURFACE_XID (surface),
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 (surface);
}
static void
gdk_check_wm_state_changed (GdkSurface *surface)
{
GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface);
GdkDisplay *display = GDK_SURFACE_DISPLAY (surface);
GdkX11Screen *screen = GDK_SURFACE_SCREEN (surface);
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_SURFACE_XID (surface),
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,
g_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 (surface);
else
do_net_wm_state_changes (surface);
}
static void
gdk_check_edge_constraints_changed (GdkSurface *surface)
{
GdkToplevelX11 *toplevel = _gdk_x11_surface_get_toplevel (surface);
GdkDisplay *display = GDK_SURFACE_DISPLAY (surface);
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
guchar *data;
gulong *constraints;
type = None;
gdk_x11_display_error_trap_push (display);
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
GDK_SURFACE_XID (surface),
gdk_x11_get_xatom_by_name_for_display (display, "_GTK_EDGE_CONSTRAINTS"),
0, G_MAXLONG, False, XA_CARDINAL, &type,
&format, &nitems,
&bytes_after, &data);
gdk_x11_display_error_trap_pop_ignored (display);
if (type != None)
{
constraints = (gulong *)data;
/* The GDK enum for these states does not begin at zero so, to avoid
* messing around with shifts, just make the passed value and GDK's
* enum values match by shifting to the first tiled state.
*/
toplevel->edge_constraints = constraints[0] << 9;
XFree (constraints);
}
else
{
toplevel->edge_constraints = 0;
}
do_net_wm_state_changes (surface);
}
static Atom
get_cm_atom (GdkDisplay *display)
{
return _gdk_x11_get_xatom_for_display_printf (display, "_NET_WM_CM_S%d", DefaultScreen (GDK_DISPLAY_XDISPLAY (display)));
}
static Window
get_event_xwindow (const 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,
const XEvent *xevent)
{
Window xwindow;
GdkSurface *surface;
gboolean is_substructure;
GdkSurfaceImplX11 *surface_impl = NULL;
GdkX11Screen *x11_screen = NULL;
GdkToplevelX11 *toplevel = NULL;
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
gboolean return_val;
/* Find the GdkSurface that this event relates to. If that's
* not the same as the surface 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;
surface = gdk_x11_surface_lookup_for_display (display, xwindow);
if (surface)
{
/* We may receive events such as NoExpose/GraphicsExpose
* and ShmCompletion for pixmaps
*/
if (!GDK_IS_SURFACE (surface))
return FALSE;
x11_screen = GDK_SURFACE_SCREEN (surface);
toplevel = _gdk_x11_surface_get_toplevel (surface);
surface_impl = GDK_SURFACE_IMPL_X11 (surface->impl);
g_object_ref (surface);
}
event->any.surface = surface;
event->any.send_event = xevent->xany.send_event ? TRUE : FALSE;
if (surface && GDK_SURFACE_DESTROYED (surface))
{
if (xevent->type != DestroyNotify)
{
return_val = FALSE;
goto done;
}
}
if (xevent->type == DestroyNotify && !is_substructure)
{
x11_screen = GDK_X11_DISPLAY (display)->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 (x11_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_DISPLAY_NOTE (display, EVENTS, g_message ("keymap notify"));
/* Not currently handled */
return_val = FALSE;
break;
case Expose:
GDK_DISPLAY_NOTE (display, 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 (surface == NULL)
{
return_val = FALSE;
break;
}
{
GdkRectangle expose_rect;
int x2, y2;
expose_rect.x = xevent->xexpose.x / surface_impl->surface_scale;
expose_rect.y = xevent->xexpose.y / surface_impl->surface_scale;
x2 = (xevent->xexpose.x + xevent->xexpose.width + surface_impl->surface_scale -1) / surface_impl->surface_scale;
expose_rect.width = x2 - expose_rect.x;
y2 = (xevent->xexpose.y + xevent->xexpose.height + surface_impl->surface_scale -1) / surface_impl->surface_scale;
expose_rect.height = y2 - expose_rect.y;
gdk_surface_invalidate_rect (surface, &expose_rect);
return_val = FALSE;
}
break;
case GraphicsExpose:
{
GdkRectangle expose_rect;
int x2, y2;
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("graphics expose:\tdrawable: %ld",
xevent->xgraphicsexpose.drawable));
if (surface == NULL)
{
return_val = FALSE;
break;
}
expose_rect.x = xevent->xgraphicsexpose.x / surface_impl->surface_scale;
expose_rect.y = xevent->xgraphicsexpose.y / surface_impl->surface_scale;
x2 = (xevent->xgraphicsexpose.x + xevent->xgraphicsexpose.width + surface_impl->surface_scale -1) / surface_impl->surface_scale;
expose_rect.width = x2 - expose_rect.x;
y2 = (xevent->xgraphicsexpose.y + xevent->xgraphicsexpose.height + surface_impl->surface_scale -1) / surface_impl->surface_scale;
expose_rect.height = y2 - expose_rect.y;
gdk_surface_invalidate_rect (surface, &expose_rect);
return_val = FALSE;
}
break;
case VisibilityNotify:
#ifdef G_ENABLE_DEBUG
if (GDK_DISPLAY_DEBUG_CHECK (display, 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;
default:
break;
}
#endif /* G_ENABLE_DEBUG */
/* not handled */
return_val = FALSE;
break;
case CreateNotify:
GDK_DISPLAY_NOTE (display, 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_DISPLAY_NOTE (display, EVENTS,
g_message ("destroy notify:\twindow: %ld",
xevent->xdestroywindow.window));
if (!is_substructure)
{
event->any.type = GDK_DESTROY;
event->any.surface = surface;
return_val = surface && !GDK_SURFACE_DESTROYED (surface);
if (surface && GDK_SURFACE_XID (surface) != x11_screen->xroot_window)
gdk_surface_destroy_notify (surface);
}
else
return_val = FALSE;
break;
case UnmapNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("unmap notify:\t\twindow: %ld",
xevent->xmap.window));
event->any.type = GDK_UNMAP;
event->any.surface = surface;
if (surface && !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 (x11_screen &&
!gdk_x11_screen_supports_net_wm_hint (x11_screen,
g_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_SURFACE_IS_MAPPED (surface))
gdk_synthesize_surface_state (surface,
0,
GDK_SURFACE_STATE_ICONIFIED);
}
if (surface_impl->toplevel &&
surface_impl->toplevel->frame_pending)
{
surface_impl->toplevel->frame_pending = FALSE;
_gdk_frame_clock_thaw (gdk_surface_get_frame_clock (event->any.surface));
}
if (toplevel)
gdk_surface_freeze_toplevel_updates (surface);
_gdk_x11_surface_grab_check_unmap (surface, xevent->xany.serial);
}
break;
case MapNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("map notify:\t\twindow: %ld",
xevent->xmap.window));
event->any.type = GDK_MAP;
event->any.surface = surface;
if (surface && !is_substructure)
{
/* Unset iconified if it was set */
if (surface->state & GDK_SURFACE_STATE_ICONIFIED)
gdk_synthesize_surface_state (surface,
GDK_SURFACE_STATE_ICONIFIED,
0);
if (toplevel)
gdk_surface_thaw_toplevel_updates (surface);
}
break;
case ReparentNotify:
GDK_DISPLAY_NOTE (display, 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_DISPLAY_NOTE (display, 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,
!surface
? " (discarding)"
: surface->surface_type == GDK_SURFACE_CHILD
? " (discarding child)"
: xevent->xconfigure.event != xevent->xconfigure.window
? " (discarding substructure)"
: ""));
if (_gdk_x11_display_is_root_window (display, xevent->xconfigure.window))
{
_gdk_x11_screen_size_changed (x11_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 (!surface ||
xevent->xconfigure.event != xevent->xconfigure.window ||
GDK_SURFACE_TYPE (surface) == GDK_SURFACE_CHILD)
return_val = FALSE;
else
{
event->any.type = GDK_CONFIGURE;
event->any.surface = surface;
event->configure.width = (xevent->xconfigure.width + surface_impl->surface_scale - 1) / surface_impl->surface_scale;
event->configure.height = (xevent->xconfigure.height + surface_impl->surface_scale - 1) / surface_impl->surface_scale;
if (!xevent->xconfigure.send_event &&
!xevent->xconfigure.override_redirect &&
!GDK_SURFACE_DESTROYED (surface))
{
gint tx = 0;
gint ty = 0;
Window child_window = 0;
gdk_x11_display_error_trap_push (display);
if (XTranslateCoordinates (GDK_SURFACE_XDISPLAY (surface),
GDK_SURFACE_XID (surface),
x11_screen->xroot_window,
0, 0,
&tx, &ty,
&child_window))
{
event->configure.x = tx / surface_impl->surface_scale;
event->configure.y = ty / surface_impl->surface_scale;
}
gdk_x11_display_error_trap_pop_ignored (display);
}
else
{
event->configure.x = xevent->xconfigure.x / surface_impl->surface_scale;
event->configure.y = xevent->xconfigure.y / surface_impl->surface_scale;
}
if (!is_substructure)
{
surface->x = event->configure.x;
surface->y = event->configure.y;
if (surface_impl->unscaled_width != xevent->xconfigure.width ||
surface_impl->unscaled_height != xevent->xconfigure.height)
{
surface_impl->unscaled_width = xevent->xconfigure.width;
surface_impl->unscaled_height = xevent->xconfigure.height;
surface->width = event->configure.width;
surface->height = event->configure.height;
_gdk_surface_update_size (surface);
_gdk_x11_surface_update_size (surface_impl);
}
if (surface->resize_count >= 1)
{
surface->resize_count -= 1;
if (surface->resize_count == 0)
_gdk_x11_moveresize_configure_done (display, surface);
}
}
}
break;
case PropertyNotify:
GDK_DISPLAY_NOTE (display, 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 (surface == 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 (surface);
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
gdk_check_wm_desktop_changed (surface);
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_GTK_EDGE_CONSTRAINTS"))
gdk_check_edge_constraints_changed (surface);
}
return_val = FALSE;
break;
case ColormapNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("colormap notify:\twindow: %ld",
xevent->xcolormap.window));
/* Not currently handled */
return_val = FALSE;
break;
case ClientMessage:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("client message:\twindow: %ld",
xevent->xclient.window));
/* Not currently handled */
return_val = FALSE;
break;
case MappingNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("mapping notify"));
/* Let XLib know that there is a new keyboard mapping.
*/
XRefreshKeyboardMapping ((XMappingEvent *) xevent);
_gdk_x11_keymap_keys_changed (display);
return_val = FALSE;
break;
default:
#ifdef HAVE_RANDR
if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify ||
xevent->type - display_x11->xrandr_event_base == RRNotify)
{
if (x11_screen)
_gdk_x11_screen_size_changed (x11_screen, xevent);
}
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;
default:
break;
}
}
else
#endif
return_val = FALSE;
}
done:
if (return_val)
{
if (event->any.surface)
g_object_ref (event->any.surface);
}
else
{
/* Mark this event as having no resources to be freed */
event->any.surface = NULL;
event->any.type = GDK_NOTHING;
}
if (surface)
g_object_unref (surface);
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;
}
/* _NET_WM_FRAME_DRAWN and _NET_WM_FRAME_TIMINGS messages represent time
* as a "high resolution server time" - this is the server time interpolated
* to microsecond resolution. The advantage of this time representation
* is that if X server is running on the same computer as a client, and
* the Xserver uses 'clock_gettime(CLOCK_MONOTONIC, ...)' for the server
* time, the client can detect this, and all such clients will share a
* a time representation with high accuracy. If there is not a common
* time source, then the time synchronization will be less accurate.
*/
static gint64
server_time_to_monotonic_time (GdkX11Display *display_x11,
gint64 server_time)
{
if (display_x11->server_time_query_time == 0 ||
(!display_x11->server_time_is_monotonic_time &&
server_time > display_x11->server_time_query_time + 10*1000*1000)) /* 10 seconds */
{
gint64 current_server_time = gdk_x11_get_server_time (display_x11->leader_gdk_surface);
gint64 current_server_time_usec = (gint64)current_server_time * 1000;
gint64 current_monotonic_time = g_get_monotonic_time ();
display_x11->server_time_query_time = current_monotonic_time;
/* If the server time is within a second of the monotonic time,
* we assume that they are identical. This seems like a big margin,
* but we want to be as robust as possible even if the system
* is under load and our processing of the server response is
* delayed.
*/
if (current_server_time_usec > current_monotonic_time - 1000*1000 &&
current_server_time_usec < current_monotonic_time + 1000*1000)
display_x11->server_time_is_monotonic_time = TRUE;
display_x11->server_time_offset = current_server_time_usec - current_monotonic_time;
}
if (display_x11->server_time_is_monotonic_time)
return server_time;
else
return server_time - display_x11->server_time_offset;
}
GdkFilterReturn
_gdk_wm_protocols_filter (const XEvent *xevent,
GdkEvent *event,
gpointer data)
{
GdkSurface *win = event->any.surface;
GdkDisplay *display;
Atom atom;
if (!GDK_IS_X11_SURFACE (win) || GDK_SURFACE_DESTROYED (win))
return GDK_FILTER_CONTINUE;
if (xevent->type != ClientMessage)
return GDK_FILTER_CONTINUE;
display = GDK_SURFACE_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"))
{
GdkSurfaceImplX11 *surface_impl;
surface_impl = GDK_SURFACE_IMPL_X11 (win->impl);
if (surface_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 = server_time_to_monotonic_time (GDK_X11_DISPLAY (display), ((guint64)d3 << 32) | d2);
gint64 refresh_interval, presentation_time;
GdkFrameClock *clock = gdk_surface_get_frame_clock (win);
GdkFrameTimings *timings = find_frame_timings (clock, serial);
if (timings)
timings->drawn_time = frame_drawn_time;
if (surface_impl->toplevel->frame_pending)
{
surface_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)
surface_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"))
{
GdkSurfaceImplX11 *surface_impl;
surface_impl = GDK_SURFACE_IMPL_X11 (win->impl);
if (surface_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_surface_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_DISPLAY_DEBUG_CHECK (display, FRAMES))
_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_DISPLAY_NOTE (display, EVENTS,
g_message ("delete window:\t\twindow: %ld",
xevent->xclient.window));
event->any.type = GDK_DELETE;
gdk_x11_surface_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_surface_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_SURFACE_XROOTWIN (win);
XSendEvent (GDK_SURFACE_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_surface_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;
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));
gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
GDK_EVENT_TRANSLATOR (display_x11->device_manager));
}
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"));
}
void
gdk_display_setup_window_visual (GdkDisplay *display,
gint depth,
Visual *visual,
Colormap colormap,
gboolean rgba)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
display_x11->window_depth = depth;
display_x11->window_visual = visual;
display_x11->window_colormap = colormap;
gdk_display_set_rgba (display, rgba);
}
/**
* gdk_x11_display_open:
* @display_name: (allow-none): name of the X display.
* See the XOpenDisplay() for details.
*
* Tries to open a new display to the X server given by
* @display_name. If opening the display fails, %NULL is
* returned.
*
* Returns: (nullable) (transfer full): The new display or
* %NULL on error.
**/
GdkDisplay *
gdk_x11_display_open (const gchar *display_name)
{
Display *xdisplay;
GdkDisplay *display;
GdkX11Display *display_x11;
gint argc;
gchar *argv[1];
XClassHint *class_hint;
gulong pid;
gint ignore;
gint maj, min;
XInitThreads ();
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;
display_x11->have_randr15 = 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;
#ifdef HAVE_RANDR15
if (minor >= 5 || major > 1)
display_x11->have_randr15 = TRUE;
#endif
}
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), TRUE);
/* We need to initialize events after we have the screen
* structures in places
*/
_gdk_x11_xsettings_init (GDK_X11_SCREEN (display_x11->screen));
display_x11->device_manager = _gdk_x11_device_manager_new (display);
gdk_event_init (display);
display_x11->leader_gdk_surface = gdk_surface_new_temp (display);
(_gdk_x11_surface_get_toplevel (display_x11->leader_gdk_surface))->is_leader = TRUE;
display_x11->leader_window = GDK_SURFACE_XID (display_x11->leader_gdk_surface);
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 *) g_get_prgname ();
/* 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
display->clipboard = gdk_x11_clipboard_new (display, "CLIPBOARD");
display->primary_clipboard = gdk_x11_clipboard_new (display, "PRIMARY");
/*
* It is important that we first request the selection
* notification, and then setup the initial state of
* is_composited to avoid a race condition here.
*/
gdk_x11_display_request_selection_notification (display,
gdk_x11_xatom_to_atom_for_display (display, get_cm_atom (display)));
gdk_display_set_composited (GDK_DISPLAY (display),
XGetSelectionOwner (GDK_DISPLAY_XDISPLAY (display), get_cm_atom (display)) != None);
gdk_display_emit_opened (display);
return display;
}
/**
* gdk_x11_display_set_program_class:
* @display: a #GdkDisplay
* @program_class: a string
*
* Sets the program class.
*
* The X11 backend uses the program class to set the class name part
* of the `WM_CLASS` property on toplevel windows; see the ICCCM.
*/
void
gdk_x11_display_set_program_class (GdkDisplay *display,
const char *program_class)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
XClassHint *class_hint;
g_free (display_x11->program_class);
display_x11->program_class = g_strdup (program_class);
class_hint = XAllocClassHint();
class_hint->res_name = (char *) g_get_prgname ();
class_hint->res_class = (char *) program_class;
XSetClassHint (display_x11->xdisplay, display_x11->leader_window, class_hint);
XFree (class_hint);
}
/*
* 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;
XProcessInternalConnection ((Display*)connection->display, connection->fd);
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);
}
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)
{
GdkPointerSurfaceInfo *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 GdkSurface *
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_surface;
}
/**
* 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.
**/
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().
**/
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);
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));
/* Get rid of pending streams */
g_slist_free_full (display_x11->streams, g_object_unref);
/* 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_free_full (display_x11->event_types, g_free);
/* input GdkSurface list */
g_list_free_full (display_x11->input_surfaces, g_free);
/* Free all GdkX11Screens */
g_object_unref (display_x11->screen);
g_list_free_full (display_x11->screens, g_object_unref);
g_ptr_array_free (display_x11->monitors, TRUE);
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_free (display_x11->program_class);
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.
**/
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_IS_X11_DISPLAY (l->data) &&
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 #GdkX11Screen corresponding to
* @xrootwin, or %NULL.
**/
GdkX11Screen *
_gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
Window xrootwin)
{
GdkX11Screen *screen;
XWindowAttributes attrs;
gboolean result;
GdkX11Display *display_x11;
GList *l;
screen = GDK_X11_DISPLAY (display)->screen;
if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
return screen;
display_x11 = GDK_X11_DISPLAY (display);
for (l = display_x11->screens; l; l = l->next)
{
screen = l->data;
if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
return screen;
}
gdk_x11_display_error_trap_push (display);
result = XGetWindowAttributes (display_x11->xdisplay, xrootwin, &attrs);
if (gdk_x11_display_error_trap_pop (display) || !result)
return NULL;
screen = _gdk_x11_screen_new (display, XScreenNumberOfScreen (attrs.screen), FALSE);
display_x11->screens = g_list_prepend (display_x11->screens, screen);
return screen;
}
/**
* gdk_x11_display_get_xdisplay:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Returns the X display of a #GdkDisplay.
*
* Returns: (transfer none): an X display
*/
Display *
gdk_x11_display_get_xdisplay (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_X11_DISPLAY (display)->xdisplay;
}
/**
* gdk_x11_display_get_xscreen:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Returns the X Screen used by #GdkDisplay.
*
* Returns: (transfer none): an X Screen
*/
Screen *
gdk_x11_display_get_xscreen (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_X11_SCREEN (GDK_X11_DISPLAY (display)->screen)->xscreen;
}
/**
* gdk_x11_display_get_xrootwindow:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Returns the root X window used by #GdkDisplay.
*
* Returns: an X Window
*/
Window
gdk_x11_display_get_xrootwindow (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), None);
return GDK_SCREEN_XROOTWIN (GDK_X11_DISPLAY (display)->screen);
}
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);
Window xroot_window = GDK_DISPLAY_XROOTWIN (display);
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.
**/
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;
default:
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)
{
gchar *free_this = NULL;
if (startup_id == NULL)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
startup_id = free_this = display_x11->startup_notification_id;
display_x11->startup_notification_id = NULL;
if (startup_id == NULL)
return;
}
gdk_x11_display_broadcast_startup_message (display, "remove",
"ID", startup_id,
NULL);
g_free (free_this);
}
gboolean
gdk_x11_display_request_selection_notification (GdkDisplay *display,
const char *selection)
{
#ifdef HAVE_XFIXES
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
Atom atom;
if (display_x11->have_xfixes)
{
atom = gdk_x11_get_xatom_by_name_for_display (display, selection);
XFixesSelectSelectionInput (display_x11->xdisplay,
display_x11->leader_window,
atom,
XFixesSetSelectionOwnerNotifyMask |
XFixesSelectionWindowDestroyNotifyMask |
XFixesSelectionClientCloseNotifyMask);
return TRUE;
}
else
#endif
return FALSE;
}
/**
* 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_surface_set_user_time().
*
* Returns: the timestamp of the last user interaction
*/
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
*/
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()).
**/
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);
if (startup_id != NULL)
{
/* 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;
}
else
display_x11->user_time = 0;
/* 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));
}
else
{
XDeleteProperty (display_x11->xdisplay, display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"));
display_x11->user_time = 0;
}
}
/**
* 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).
*
* 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.
**/
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", 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.
*/
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_surface_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.
*/
void
gdk_x11_display_set_surface_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);
x11_screen = GDK_X11_SCREEN (GDK_X11_DISPLAY (display)->screen);
if (!x11_screen->fixed_surface_scale)
{
x11_screen->fixed_surface_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_surface_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.
*
* 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.
*/
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
*/
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)
{
if (GDK_IS_X11_DISPLAY (l->data))
set_sm_client_id (l->data, sm_client_id);
}
g_slist_free (displays);
}
gsize
gdk_x11_display_get_max_request_size (GdkDisplay *display)
{
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
gsize size;
size = XExtendedMaxRequestSize (xdisplay);
if (size <= 0)
size = XMaxRequestSize (xdisplay);
size = MIN (262144, size - 100);
return size;
}
/**
* gdk_x11_display_get_screen:
* @display: a #GdkX11Display
*
* Retrieves the #GdkX11Screen of the @display.
*
* Returns: (transfer none): the #GdkX11Screen
*/
GdkX11Screen *
gdk_x11_display_get_screen (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->screen;
}
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; /* beware of ref cycle */
}
return display_x11->keymap;
}
static GdkSeat *
gdk_x11_display_get_default_seat (GdkDisplay *display)
{
GList *seats, *l;
int device_id;
gboolean result = FALSE;
seats = gdk_display_list_seats (display);
gdk_x11_display_error_trap_push (display);
result = XIGetClientPointer (GDK_DISPLAY_XDISPLAY (display),
None, &device_id);
gdk_x11_display_error_trap_pop_ignored (display);
for (l = seats; l; l = l->next)
{
GdkDevice *pointer;
pointer = gdk_seat_get_pointer (l->data);
if (gdk_x11_device_get_id (pointer) == device_id || !result)
{
GdkSeat *seat = l->data;
g_list_free (seats);
return seat;
}
}
g_list_free (seats);
return NULL;
}
static int
gdk_x11_display_get_n_monitors (GdkDisplay *display)
{
GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
return x11_display->monitors->len;
}
static GdkMonitor *
gdk_x11_display_get_monitor (GdkDisplay *display,
int monitor_num)
{
GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
if (0 <= monitor_num && monitor_num < x11_display->monitors->len)
return (GdkMonitor *)x11_display->monitors->pdata[monitor_num];
return NULL;
}
static GdkMonitor *
gdk_x11_display_get_primary_monitor (GdkDisplay *display)
{
GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
if (0 <= x11_display->primary_monitor && x11_display->primary_monitor < x11_display->monitors->len)
return x11_display->monitors->pdata[x11_display->primary_monitor];
return NULL;
}
int
gdk_x11_display_get_window_depth (GdkX11Display *display)
{
return display->window_depth;
}
Visual *
gdk_x11_display_get_window_visual (GdkX11Display *display)
{
return display->window_visual;
}
Colormap
gdk_x11_display_get_window_colormap (GdkX11Display *display)
{
return display->window_colormap;
}
static gboolean
gdk_x11_display_get_setting (GdkDisplay *display,
const gchar *name,
GValue *value)
{
return gdk_x11_screen_get_setting (GDK_X11_DISPLAY (display)->screen, name, value);
}
GList *
gdk_x11_display_get_toplevel_windows (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->toplevels;
}
static guint32
gdk_x11_display_get_last_seen_time (GdkDisplay *display)
{
return gdk_x11_get_server_time (GDK_X11_DISPLAY (display)->leader_gdk_surface);
}
static gboolean
gdk_boolean_handled_accumulator (GSignalInvocationHint *ihint,
GValue *return_accu,
const GValue *handler_return,
gpointer dummy)
{
gboolean continue_emission;
gboolean signal_handled;
signal_handled = g_value_get_boolean (handler_return);
g_value_set_boolean (return_accu, signal_handled);
continue_emission = !signal_handled;
return continue_emission;
}
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->surface_type = GDK_TYPE_X11_SURFACE;
display_class->cairo_context_type = GDK_TYPE_X11_CAIRO_CONTEXT;
#ifdef GDK_RENDERING_VULKAN
display_class->vk_context_type = GDK_TYPE_X11_VULKAN_CONTEXT;
display_class->vk_extension_name = VK_KHR_XLIB_SURFACE_EXTENSION_NAME;
#endif
display_class->get_name = gdk_x11_display_get_name;
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_shapes = gdk_x11_display_supports_shapes;
display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes;
display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context;
display_class->get_next_serial = gdk_x11_display_get_next_serial;
display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete;
display_class->create_surface_impl = _gdk_x11_display_create_surface_impl;
display_class->get_keymap = gdk_x11_display_get_keymap;
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->make_gl_context_current = gdk_x11_display_make_gl_context_current;
display_class->get_default_seat = gdk_x11_display_get_default_seat;
display_class->get_n_monitors = gdk_x11_display_get_n_monitors;
display_class->get_monitor = gdk_x11_display_get_monitor;
display_class->get_primary_monitor = gdk_x11_display_get_primary_monitor;
display_class->get_setting = gdk_x11_display_get_setting;
display_class->get_last_seen_time = gdk_x11_display_get_last_seen_time;
display_class->set_cursor_theme = gdk_x11_display_set_cursor_theme;
class->xevent = gdk_event_source_xevent;
/**
* GdkX11Display::xevent:
* @display: the object on which the signal is emitted
* @xevent: a pointer to the XEvent to process
*
* The ::xevent signal is a low level signal that is emitted
* whenever an XEvent has been received.
*
* When handlers to this signal return %TRUE, no other handlers will be
* invoked. In particular, the default handler for this function is
* GDK's own event handling mechanism, so by returning %TRUE for an event
* that GDK expects to translate, you may break GDK and/or GTK+ in
* interesting ways. You have been warned.
*
* If you want this signal handler to queue a #GdkEvent, you can use
* gdk_display_put_event().
*
* If you are interested in X GenericEvents, bear in mind that
* XGetEventData() has been already called on the event, and
* XFreeEventData() will be called afterwards.
*
* Returns: %TRUE to stop other handlers from being invoked for the event.
* %FALSE to propagate the event further.
*/
signals[XEVENT] =
g_signal_new (g_intern_static_string ("xevent"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GdkX11DisplayClass, xevent),
gdk_boolean_handled_accumulator, NULL,
_gdk_marshal_BOOLEAN__POINTER,
G_TYPE_BOOLEAN, 1, G_TYPE_POINTER);
_gdk_x11_surfaceing_init ();
}
Reference in New Issue View Git Blame Copy Permalink