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https://github.com/brl/mutter.git
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c2a9ccb7e2
This essentially just moves install_corners() from the compositor, through the core, into the UI layer where it arguably should have been anyway, leaving behind stub functions which call through the various layers. This removes the compositor's special knowledge of how rounded corners work, replacing it with "ask the UI for an alpha mask". The computation of border widths and heights changes a bit, because the width and height used in install_corners() are the meta_window_get_outer_rect() (which includes the visible borders but not the invisible ones), whereas the more readily-available rectangle is the MetaFrame.rect (which includes both). Computing the same width and height as meta_window_get_outer_rect() involves compensating for the invisible borders, but the UI layer is the authority on those anyway, so it seems clearer to have it do the calculations from scratch. Bug: https://bugzilla.gnome.org/show_bug.cgi?id=697758 Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk> Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
429 lines
14 KiB
C
429 lines
14 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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* Copyright (C) 2003, 2004 Red Hat, Inc.
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* Copyright (C) 2005 Elijah Newren
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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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#include <config.h>
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#include "frame.h"
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#include "bell.h"
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#include <meta/errors.h>
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#include "keybindings-private.h"
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#include <X11/extensions/Xrender.h>
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#define EVENT_MASK (SubstructureRedirectMask | \
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StructureNotifyMask | SubstructureNotifyMask | \
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ExposureMask | \
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ButtonPressMask | ButtonReleaseMask | \
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PointerMotionMask | PointerMotionHintMask | \
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EnterWindowMask | LeaveWindowMask | \
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FocusChangeMask | \
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ColormapChangeMask)
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void
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meta_window_ensure_frame (MetaWindow *window)
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{
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MetaFrame *frame;
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XSetWindowAttributes attrs;
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Visual *visual;
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gulong create_serial;
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if (window->frame)
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return;
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/* See comment below for why this is required. */
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meta_display_grab (window->display);
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frame = g_new (MetaFrame, 1);
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frame->window = window;
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frame->xwindow = None;
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frame->rect = window->rect;
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frame->child_x = 0;
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frame->child_y = 0;
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frame->bottom_height = 0;
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frame->right_width = 0;
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frame->current_cursor = 0;
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frame->mapped = FALSE;
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frame->is_flashing = FALSE;
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meta_verbose ("Framing window %s: visual %s default, depth %d default depth %d\n",
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window->desc,
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XVisualIDFromVisual (window->xvisual) ==
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XVisualIDFromVisual (window->screen->default_xvisual) ?
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"is" : "is not",
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window->depth, window->screen->default_depth);
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meta_verbose ("Frame geometry %d,%d %dx%d\n",
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frame->rect.x, frame->rect.y,
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frame->rect.width, frame->rect.height);
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/* Default depth/visual handles clients with weird visuals; they can
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* always be children of the root depth/visual obviously, but
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* e.g. DRI games can't be children of a parent that has the same
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* visual as the client. NULL means default visual.
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*
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* We look for an ARGB visual if we can find one, otherwise use
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* the default of NULL.
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*/
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/* Special case for depth 32 windows (assumed to be ARGB),
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* we use the window's visual. Otherwise we just use the system visual.
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*/
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if (window->depth == 32)
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visual = window->xvisual;
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else
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visual = NULL;
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frame->xwindow = meta_ui_create_frame_window (window->screen->ui,
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window->display->xdisplay,
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visual,
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frame->rect.x,
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frame->rect.y,
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frame->rect.width,
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frame->rect.height,
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frame->window->screen->number,
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&create_serial);
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meta_stack_tracker_record_add (window->screen->stack_tracker,
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frame->xwindow,
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create_serial);
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meta_verbose ("Frame for %s is 0x%lx\n", frame->window->desc, frame->xwindow);
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attrs.event_mask = EVENT_MASK;
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XChangeWindowAttributes (window->display->xdisplay,
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frame->xwindow, CWEventMask, &attrs);
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meta_display_register_x_window (window->display, &frame->xwindow, window);
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/* Reparent the client window; it may be destroyed,
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* thus the error trap. We'll get a destroy notify later
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* and free everything. Comment in FVWM source code says
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* we need a server grab or the child can get its MapNotify
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* before we've finished reparenting and getting the decoration
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* window onscreen, so ensure_frame must be called with
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* a grab.
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*/
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meta_error_trap_push (window->display);
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if (window->mapped)
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{
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window->mapped = FALSE; /* the reparent will unmap the window,
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* we don't want to take that as a withdraw
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*/
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meta_topic (META_DEBUG_WINDOW_STATE,
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"Incrementing unmaps_pending on %s for reparent\n", window->desc);
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window->unmaps_pending += 1;
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}
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/* window was reparented to this position */
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window->rect.x = 0;
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window->rect.y = 0;
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meta_stack_tracker_record_remove (window->screen->stack_tracker,
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window->xwindow,
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XNextRequest (window->display->xdisplay));
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XReparentWindow (window->display->xdisplay,
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window->xwindow,
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frame->xwindow,
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window->rect.x,
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window->rect.y);
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/* FIXME handle this error */
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meta_error_trap_pop (window->display);
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/* stick frame to the window */
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window->frame = frame;
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/* Now that frame->xwindow is registered with window, we can set its
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* style and background.
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*/
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meta_ui_update_frame_style (window->screen->ui, frame->xwindow);
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meta_ui_reset_frame_bg (window->screen->ui, frame->xwindow);
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if (window->title)
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meta_ui_set_frame_title (window->screen->ui,
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window->frame->xwindow,
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window->title);
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/* Move keybindings to frame instead of window */
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meta_window_grab_keys (window);
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meta_display_ungrab (window->display);
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}
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void
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meta_window_destroy_frame (MetaWindow *window)
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{
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MetaFrame *frame;
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MetaFrameBorders borders;
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if (window->frame == NULL)
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return;
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meta_verbose ("Unframing window %s\n", window->desc);
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frame = window->frame;
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meta_frame_calc_borders (frame, &borders);
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meta_bell_notify_frame_destroy (frame);
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/* Unparent the client window; it may be destroyed,
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* thus the error trap.
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*/
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meta_error_trap_push (window->display);
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if (window->mapped)
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{
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window->mapped = FALSE; /* Keep track of unmapping it, so we
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* can identify a withdraw initiated
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* by the client.
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*/
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meta_topic (META_DEBUG_WINDOW_STATE,
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"Incrementing unmaps_pending on %s for reparent back to root\n", window->desc);
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window->unmaps_pending += 1;
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}
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meta_stack_tracker_record_add (window->screen->stack_tracker,
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window->xwindow,
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XNextRequest (window->display->xdisplay));
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XReparentWindow (window->display->xdisplay,
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window->xwindow,
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window->screen->xroot,
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/* Using anything other than meta_window_get_position()
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* coordinates here means we'll need to ensure a configure
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* notify event is sent; see bug 399552.
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*/
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window->frame->rect.x + borders.invisible.left,
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window->frame->rect.y + borders.invisible.top);
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meta_error_trap_pop (window->display);
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meta_ui_destroy_frame_window (window->screen->ui, frame->xwindow);
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meta_display_unregister_x_window (window->display,
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frame->xwindow);
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window->frame = NULL;
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if (window->frame_bounds)
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{
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cairo_region_destroy (window->frame_bounds);
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window->frame_bounds = NULL;
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}
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/* Move keybindings to window instead of frame */
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meta_window_grab_keys (window);
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g_free (frame);
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/* Put our state back where it should be */
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meta_window_queue (window, META_QUEUE_CALC_SHOWING);
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meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
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}
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MetaFrameFlags
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meta_frame_get_flags (MetaFrame *frame)
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{
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MetaFrameFlags flags;
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flags = 0;
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if (frame->window->border_only)
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{
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; /* FIXME this may disable the _function_ as well as decor
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* in some cases, which is sort of wrong.
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*/
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}
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else
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{
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flags |= META_FRAME_ALLOWS_MENU;
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if (frame->window->has_close_func)
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flags |= META_FRAME_ALLOWS_DELETE;
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if (frame->window->has_maximize_func)
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flags |= META_FRAME_ALLOWS_MAXIMIZE;
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if (frame->window->has_minimize_func)
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flags |= META_FRAME_ALLOWS_MINIMIZE;
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if (frame->window->has_shade_func)
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flags |= META_FRAME_ALLOWS_SHADE;
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}
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if (META_WINDOW_ALLOWS_MOVE (frame->window))
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flags |= META_FRAME_ALLOWS_MOVE;
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if (META_WINDOW_ALLOWS_HORIZONTAL_RESIZE (frame->window))
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flags |= META_FRAME_ALLOWS_HORIZONTAL_RESIZE;
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if (META_WINDOW_ALLOWS_VERTICAL_RESIZE (frame->window))
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flags |= META_FRAME_ALLOWS_VERTICAL_RESIZE;
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if (meta_window_appears_focused (frame->window))
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flags |= META_FRAME_HAS_FOCUS;
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if (frame->window->shaded)
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flags |= META_FRAME_SHADED;
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if (frame->window->on_all_workspaces_requested)
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flags |= META_FRAME_STUCK;
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/* FIXME: Should we have some kind of UI for windows that are just vertically
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* maximized or just horizontally maximized?
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*/
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if (META_WINDOW_MAXIMIZED (frame->window))
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flags |= META_FRAME_MAXIMIZED;
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if (META_WINDOW_TILED_LEFT (frame->window))
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flags |= META_FRAME_TILED_LEFT;
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if (META_WINDOW_TILED_RIGHT (frame->window))
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flags |= META_FRAME_TILED_RIGHT;
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if (frame->window->fullscreen)
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flags |= META_FRAME_FULLSCREEN;
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if (frame->is_flashing)
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flags |= META_FRAME_IS_FLASHING;
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if (frame->window->wm_state_above)
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flags |= META_FRAME_ABOVE;
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return flags;
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}
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void
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meta_frame_borders_clear (MetaFrameBorders *self)
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{
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self->visible.top = self->invisible.top = self->total.top = 0;
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self->visible.bottom = self->invisible.bottom = self->total.bottom = 0;
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self->visible.left = self->invisible.left = self->total.left = 0;
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self->visible.right = self->invisible.right = self->total.right = 0;
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}
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void
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meta_frame_calc_borders (MetaFrame *frame,
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MetaFrameBorders *borders)
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{
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/* Save on if statements and potential uninitialized values
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* in callers -- if there's no frame, then zero the borders. */
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if (frame == NULL)
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meta_frame_borders_clear (borders);
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else
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meta_ui_get_frame_borders (frame->window->screen->ui,
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frame->xwindow,
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borders);
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}
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gboolean
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meta_frame_sync_to_window (MetaFrame *frame,
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int resize_gravity,
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gboolean need_move,
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gboolean need_resize)
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{
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meta_topic (META_DEBUG_GEOMETRY,
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"Syncing frame geometry %d,%d %dx%d (SE: %d,%d)\n",
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frame->rect.x, frame->rect.y,
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frame->rect.width, frame->rect.height,
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frame->rect.x + frame->rect.width,
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frame->rect.y + frame->rect.height);
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/* set bg to none to avoid flicker */
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if (need_resize)
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{
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meta_ui_unflicker_frame_bg (frame->window->screen->ui,
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frame->xwindow,
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frame->rect.width,
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frame->rect.height);
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}
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meta_ui_move_resize_frame (frame->window->screen->ui,
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frame->xwindow,
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frame->rect.x,
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frame->rect.y,
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frame->rect.width,
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frame->rect.height);
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if (need_resize)
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{
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meta_ui_reset_frame_bg (frame->window->screen->ui,
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frame->xwindow);
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/* If we're interactively resizing the frame, repaint
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* it immediately so we don't start to lag.
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*/
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if (frame->window->display->grab_window ==
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frame->window)
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meta_ui_repaint_frame (frame->window->screen->ui,
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frame->xwindow);
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}
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return need_resize;
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}
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cairo_region_t *
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meta_frame_get_frame_bounds (MetaFrame *frame)
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{
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return meta_ui_get_frame_bounds (frame->window->screen->ui,
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frame->xwindow,
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frame->rect.width,
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frame->rect.height);
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}
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void
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meta_frame_get_mask (MetaFrame *frame,
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cairo_t *cr)
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{
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meta_ui_get_frame_mask (frame->window->screen->ui, frame->xwindow,
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frame->rect.width, frame->rect.height, cr);
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}
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void
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meta_frame_queue_draw (MetaFrame *frame)
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{
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meta_ui_queue_frame_draw (frame->window->screen->ui,
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frame->xwindow);
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}
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void
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meta_frame_set_screen_cursor (MetaFrame *frame,
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MetaCursor cursor)
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{
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Cursor xcursor;
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if (cursor == frame->current_cursor)
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return;
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frame->current_cursor = cursor;
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if (cursor == META_CURSOR_DEFAULT)
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XUndefineCursor (frame->window->display->xdisplay, frame->xwindow);
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else
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{
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xcursor = meta_display_create_x_cursor (frame->window->display, cursor);
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XDefineCursor (frame->window->display->xdisplay, frame->xwindow, xcursor);
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XFlush (frame->window->display->xdisplay);
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XFreeCursor (frame->window->display->xdisplay, xcursor);
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}
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}
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Window
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meta_frame_get_xwindow (MetaFrame *frame)
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{
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return frame->xwindow;
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}
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