6314ee8780
In order to properly track the stacking order for override-redirect windows, move meta_compositor_sync_stack() call into MetaStackTracker. In the new location, we sync the stack as a before-redraw idle function, rather then using the freeze-thaw facilities of MetaStack. This is simpler, and also properly compresses multiple stack changes on notifications received from the X server. http://bugzilla.gnome.org/show_bug.cgi?id=585984
90 lines
3.9 KiB
C
90 lines
3.9 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/**
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* \file stack-tracker.h Track stacking order for compositor
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*
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* MetaStackTracker maintains the most accurate view we have at a
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* given point of time of the ordering of the children of the root
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* window (including override-redirect windows.) This is used to order
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* the windows when the compositor draws them.
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*
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* By contrast, MetaStack is responsible for keeping track of how we
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* think that windows *should* be ordered. For windows we manage
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* (non-override-redirect windows), the two stacking orders will be
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* the same.
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*/
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/*
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* Copyright (C) 2009 Red Hat, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef META_STACK_TRACKER_H
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#define META_STACK_TRACKER_H
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#include "screen.h"
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typedef struct _MetaStackTracker MetaStackTracker;
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MetaStackTracker *meta_stack_tracker_new (MetaScreen *screen);
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void meta_stack_tracker_free (MetaStackTracker *tracker);
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/* These functions are called when we make an X call that changes the
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* stacking order; this allows MetaStackTracker to predict stacking
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* order before it receives events back from the X server */
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void meta_stack_tracker_record_add (MetaStackTracker *tracker,
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Window window,
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gulong serial);
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void meta_stack_tracker_record_remove (MetaStackTracker *tracker,
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Window window,
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gulong serial);
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void meta_stack_tracker_record_restack_windows (MetaStackTracker *tracker,
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Window *windows,
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int n_windows,
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gulong serial);
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void meta_stack_tracker_record_raise_above (MetaStackTracker *tracker,
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Window window,
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Window sibling,
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gulong serial);
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void meta_stack_tracker_record_lower_below (MetaStackTracker *tracker,
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Window window,
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Window sibling,
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gulong serial);
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void meta_stack_tracker_record_lower (MetaStackTracker *tracker,
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Window window,
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gulong serial);
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/* These functions are used to update the stack when we get events
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* reflecting changes to the stacking order */
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void meta_stack_tracker_create_event (MetaStackTracker *tracker,
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XCreateWindowEvent *event);
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void meta_stack_tracker_destroy_event (MetaStackTracker *tracker,
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XDestroyWindowEvent *event);
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void meta_stack_tracker_reparent_event (MetaStackTracker *tracker,
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XReparentEvent *event);
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void meta_stack_tracker_configure_event (MetaStackTracker *tracker,
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XConfigureEvent *event);
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void meta_stack_tracker_get_stack (MetaStackTracker *tracker,
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Window **windows,
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int *n_windows);
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void meta_stack_tracker_sync_stack (MetaStackTracker *tracker);
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void meta_stack_tracker_queue_sync_stack (MetaStackTracker *tracker);
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#endif /* META_STACK_TRACKER_H */
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