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3994297429
Replace the in-process implementation of frames with the external frames client. When a client window is created and managed by Mutter, Mutter will determine whether it is a window that requires decorations and hint the creation of a frame for it by setting the _MUTTER_NEEDS_FRAME property on the client window. After the frames client created a window that has the _MUTTER_FRAME_FOR property, Mutter will proceed to reparent the client window on the frame window, and show them as a single unit. Rendering and event handling on the frame window will be performed by the external client, Mutter is still responsible for everything else, namely resizing client and frame window in synchronization, and managing updates on the MetaWindowActor. In order to let the frame be managed by the external client, Mutter needs to change the way some properties are forwarded to the client and/or frame windows. Some properties are necessary to keep propagating to the client window only, some others need to happen on the frame window now, and some others needs to be propagated on both so they are synchronized about the behavior. Also, some events that were previously totally unexpected in frame windows are now susceptible to happen, so must be allowed now. MetaFrame in src/core/frame.c now acts as the wrapper of foreign windows created by the frames client, from the Mutter side. Location, size, and lifetime are still largely in control of Mutter, some details like visible/invisible borders are obtained from the client instead (through the _MUTTER_FRAME_EXTENTS and _GTK_FRAME_EXTENTS properties, respectively). Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2175>
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* Mutter X window decorations */
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/*
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* Copyright (C) 2001 Havoc Pennington
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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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef META_FRAME_PRIVATE_H
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#define META_FRAME_PRIVATE_H
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#include "core/window-private.h"
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struct _MetaFrame
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{
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/* window we frame */
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MetaWindow *window;
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/* reparent window */
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Window xwindow;
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/* This rect is trusted info from where we put the
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* frame, not the result of ConfigureNotify
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*/
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MetaRectangle rect;
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MetaFrameBorders cached_borders; /* valid if borders_cached is set */
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/* position of client, size of frame */
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int child_x;
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int child_y;
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int right_width;
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int bottom_height;
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guint borders_cached : 1;
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};
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void meta_window_ensure_frame (MetaWindow *window);
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void meta_window_destroy_frame (MetaWindow *window);
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MetaFrameFlags meta_frame_get_flags (MetaFrame *frame);
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Window meta_frame_get_xwindow (MetaFrame *frame);
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/* These should ONLY be called from meta_window_move_resize_internal */
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void meta_frame_calc_borders (MetaFrame *frame,
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MetaFrameBorders *borders);
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gboolean meta_frame_sync_to_window (MetaFrame *frame,
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gboolean need_resize);
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void meta_frame_clear_cached_borders (MetaFrame *frame);
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cairo_region_t *meta_frame_get_frame_bounds (MetaFrame *frame);
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void meta_frame_get_mask (MetaFrame *frame,
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cairo_rectangle_int_t *frame_rect,
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cairo_t *cr);
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gboolean meta_frame_handle_xevent (MetaFrame *frame,
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XEvent *event);
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GSubprocess * meta_frame_launch_client (MetaX11Display *x11_display,
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const char *display_name);
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#endif
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