mutter/src/core/frame.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

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2.5 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Mutter X window decorations */
/*
* Copyright (C) 2001 Havoc Pennington
*
* 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_FRAME_PRIVATE_H
#define META_FRAME_PRIVATE_H
#include "window-private.h"
struct _MetaFrame
{
/* window we frame */
MetaWindow *window;
/* reparent window */
Window xwindow;
MetaCursor current_cursor;
/* This rect is trusted info from where we put the
* frame, not the result of ConfigureNotify
*/
MetaRectangle rect;
MetaFrameBorders cached_borders; /* valid if borders_cached is set */
/* position of client, size of frame */
int child_x;
int child_y;
int right_width;
int bottom_height;
guint need_reapply_frame_shape : 1;
guint is_flashing : 1; /* used by the visual bell flash */
guint borders_cached : 1;
};
void meta_window_ensure_frame (MetaWindow *window);
void meta_window_destroy_frame (MetaWindow *window);
void meta_frame_queue_draw (MetaFrame *frame);
MetaFrameFlags meta_frame_get_flags (MetaFrame *frame);
Window meta_frame_get_xwindow (MetaFrame *frame);
/* These should ONLY be called from meta_window_move_resize_internal */
void meta_frame_calc_borders (MetaFrame *frame,
MetaFrameBorders *borders);
gboolean meta_frame_sync_to_window (MetaFrame *frame,
int gravity,
gboolean need_move,
gboolean need_resize);
void meta_frame_clear_cached_borders (MetaFrame *frame);
cairo_region_t *meta_frame_get_frame_bounds (MetaFrame *frame);
void meta_frame_get_mask (MetaFrame *frame,
cairo_t *cr);
void meta_frame_set_screen_cursor (MetaFrame *frame,
MetaCursor cursor);
#endif