mutter/src/meta/compositor.h
Jasper St. Pierre aec3edb1cc Always map the client and frame windows
Traditionally, WMs unmap windows when minimizing them, and map them
when restoring them or wanting to show them for other reasons, like
upon creation.

However, as metacity morphed into mutter, we optionally chose to keep
windows mapped for the lifetime of the window under the user option
"live-window-previews", which makes the code keep windows mapped so it
can show window preview for minimized windows in other places, like
Alt-Tab and Expose.

I removed this preference two years ago mechanically, by removing all
the if statements, but never went through and cleaned up the code so
that windows are simply mapped for the lifetime of the window -- the
"architecture" of the old code that maps and unmaps on show/hide was
still there.

Remove this now.

The one case we still need to be careful of is shaded windows, in which
we do still unmap the client window. In the future, we might want to
show previews of shaded windows in the overview and Alt-Tab. In that
we'd also keep shaded windows mapped, and could remove all unmap logic,
but we'd need a more complex method of showing the shaded titlebar, such
as using a different actor.

At the same time, simplify the compositor interface by removing
meta_compositor_window_[un]mapped API, and instead adding/removing the
window on-demand.

https://bugzilla.gnome.org/show_bug.cgi?id=720631
2014-02-14 23:19:41 -05:00

125 lines
5.8 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2008 Iain Holmes
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef META_COMPOSITOR_H
#define META_COMPOSITOR_H
#include <glib.h>
#include <X11/Xlib.h>
#include <meta/types.h>
#include <meta/boxes.h>
#include <meta/window.h>
#include <meta/workspace.h>
/**
* MetaCompEffect:
* @META_COMP_EFFECT_CREATE: The window is newly created
* (also used for a window that was previously on a different
* workspace and is changed to become visible on the active
* workspace.)
* @META_COMP_EFFECT_UNMINIMIZE: The window should be shown
* as unminimizing from its icon geometry.
* @META_COMP_EFFECT_DESTROY: The window is being destroyed
* @META_COMP_EFFECT_MINIMIZE: The window should be shown
* as minimizing to its icon geometry.
* @META_COMP_EFFECT_NONE: No effect, the window should be
* shown or hidden immediately.
*
* Indicates the appropriate effect to show the user for
* meta_compositor_show_window() and meta_compositor_hide_window()
*/
typedef enum
{
META_COMP_EFFECT_CREATE,
META_COMP_EFFECT_UNMINIMIZE,
META_COMP_EFFECT_DESTROY,
META_COMP_EFFECT_MINIMIZE,
META_COMP_EFFECT_NONE
} MetaCompEffect;
MetaCompositor *meta_compositor_new (MetaDisplay *display);
void meta_compositor_destroy (MetaCompositor *compositor);
void meta_compositor_manage_screen (MetaCompositor *compositor,
MetaScreen *screen);
void meta_compositor_unmanage_screen (MetaCompositor *compositor,
MetaScreen *screen);
void meta_compositor_window_shape_changed (MetaCompositor *compositor,
MetaWindow *window);
void meta_compositor_window_opacity_changed (MetaCompositor *compositor,
MetaWindow *window);
gboolean meta_compositor_process_event (MetaCompositor *compositor,
XEvent *event,
MetaWindow *window);
gboolean meta_compositor_filter_keybinding (MetaCompositor *compositor,
MetaScreen *screen,
MetaKeyBinding *binding);
void meta_compositor_add_window (MetaCompositor *compositor,
MetaWindow *window);
void meta_compositor_remove_window (MetaCompositor *compositor,
MetaWindow *window);
void meta_compositor_show_window (MetaCompositor *compositor,
MetaWindow *window,
MetaCompEffect effect);
void meta_compositor_hide_window (MetaCompositor *compositor,
MetaWindow *window,
MetaCompEffect effect);
void meta_compositor_switch_workspace (MetaCompositor *compositor,
MetaScreen *screen,
MetaWorkspace *from,
MetaWorkspace *to,
MetaMotionDirection direction);
void meta_compositor_maximize_window (MetaCompositor *compositor,
MetaWindow *window,
MetaRectangle *old_rect,
MetaRectangle *new_rect);
void meta_compositor_unmaximize_window (MetaCompositor *compositor,
MetaWindow *window,
MetaRectangle *old_rect,
MetaRectangle *new_rect);
void meta_compositor_sync_window_geometry (MetaCompositor *compositor,
MetaWindow *window,
gboolean did_placement);
void meta_compositor_set_updates_frozen (MetaCompositor *compositor,
MetaWindow *window,
gboolean updates_frozen);
void meta_compositor_queue_frame_drawn (MetaCompositor *compositor,
MetaWindow *window,
gboolean no_delay_frame);
void meta_compositor_sync_stack (MetaCompositor *compositor,
MetaScreen *screen,
GList *stack);
void meta_compositor_sync_screen_size (MetaCompositor *compositor,
MetaScreen *screen,
guint width,
guint height);
void meta_compositor_flash_screen (MetaCompositor *compositor,
MetaScreen *screen);
#endif /* META_COMPOSITOR_H */