328 lines
11 KiB
C
328 lines
11 KiB
C
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/*
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* Copyright (C) 2017 Red Hat
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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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* Written by:
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* Olivier Fourdan <ofourdan@redhat.com>
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*/
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#include "config.h"
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#include <wayland-server.h>
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#include "meta/meta-backend.h"
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#include "backends/meta-settings-private.h"
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#include "wayland/meta-wayland-private.h"
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#include "wayland/meta-wayland-versions.h"
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#include "wayland/meta-wayland-seat.h"
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#include "wayland/meta-window-wayland.h"
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#include "wayland/meta-xwayland-grab-keyboard.h"
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struct _MetaXwaylandKeyboardActiveGrab
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{
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MetaWaylandSurface *surface;
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MetaWaylandSeat *seat;
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MetaWaylandKeyboardGrab keyboard_grab;
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gulong surface_destroyed_handler;
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gulong shortcuts_restored_handler;
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gulong window_associate_handler;
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struct wl_resource *resource;
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};
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static gboolean
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meta_xwayland_keyboard_grab_key (MetaWaylandKeyboardGrab *grab,
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const ClutterEvent *event)
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{
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MetaXwaylandKeyboardActiveGrab *active_grab;
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MetaWaylandKeyboard *keyboard;
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active_grab = wl_container_of (grab, active_grab, keyboard_grab);
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keyboard = active_grab->keyboard_grab.keyboard;
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/* Force focus onto the surface who has the active grab on the keyboard */
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if (active_grab->surface != NULL && keyboard->focus_surface != active_grab->surface)
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meta_wayland_keyboard_set_focus (keyboard, active_grab->surface);
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/* Chain-up with default keyboard handler */
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return keyboard->default_grab.interface->key (&keyboard->default_grab, event);
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}
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static void
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meta_xwayland_keyboard_grab_modifiers (MetaWaylandKeyboardGrab *grab,
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ClutterModifierType modifiers)
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{
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MetaXwaylandKeyboardActiveGrab *active_grab;
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MetaWaylandKeyboard *keyboard;
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active_grab = wl_container_of (grab, active_grab, keyboard_grab);
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keyboard = active_grab->keyboard_grab.keyboard;
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/* Force focus onto the surface who has the active grab on the keyboard */
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if (active_grab->surface != NULL && keyboard->focus_surface != active_grab->surface)
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meta_wayland_keyboard_set_focus (keyboard, active_grab->surface);
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/* Chain-up with default keyboard handler */
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return keyboard->default_grab.interface->modifiers (&keyboard->default_grab,
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modifiers);
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}
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static void
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meta_xwayland_keyboard_grab_end (MetaXwaylandKeyboardActiveGrab *active_grab)
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{
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MetaWaylandSeat *seat = active_grab->seat;
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if (!active_grab->surface)
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return;
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g_signal_handler_disconnect (active_grab->surface,
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active_grab->surface_destroyed_handler);
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g_signal_handler_disconnect (active_grab->surface,
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active_grab->shortcuts_restored_handler);
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meta_wayland_surface_restore_shortcuts (active_grab->surface,
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active_grab->seat);
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if (active_grab->window_associate_handler)
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{
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g_signal_handler_disconnect (active_grab->surface->role,
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active_grab->window_associate_handler);
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active_grab->window_associate_handler = 0;
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}
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if (seat->keyboard->grab->interface->key == meta_xwayland_keyboard_grab_key)
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{
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meta_wayland_keyboard_end_grab (active_grab->keyboard_grab.keyboard);
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meta_wayland_keyboard_set_focus (active_grab->keyboard_grab.keyboard, NULL);
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meta_display_sync_wayland_input_focus (meta_get_display ());
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}
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active_grab->surface = NULL;
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}
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static const MetaWaylandKeyboardGrabInterface
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keyboard_grab_interface = {
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meta_xwayland_keyboard_grab_key,
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meta_xwayland_keyboard_grab_modifiers
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};
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static void
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zwp_xwayland_keyboard_grab_destructor (struct wl_resource *resource)
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{
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MetaXwaylandKeyboardActiveGrab *active_grab;
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active_grab = wl_resource_get_user_data (resource);
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meta_xwayland_keyboard_grab_end (active_grab);
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g_free (active_grab);
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}
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static void
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zwp_xwayland_keyboard_grab_destroy (struct wl_client *client,
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struct wl_resource *resource)
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{
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wl_resource_destroy (resource);
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}
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static const struct zwp_xwayland_keyboard_grab_v1_interface
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xwayland_keyboard_grab_interface = {
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zwp_xwayland_keyboard_grab_destroy,
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};
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static void
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surface_destroyed_cb (MetaWaylandSurface *surface,
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MetaXwaylandKeyboardActiveGrab *active_grab)
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{
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active_grab->surface = NULL;
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}
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static void
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shortcuts_restored_cb (MetaWaylandSurface *surface,
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MetaXwaylandKeyboardActiveGrab *active_grab)
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{
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meta_xwayland_keyboard_grab_end (active_grab);
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}
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static void
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zwp_xwayland_keyboard_grab_manager_destroy (struct wl_client *client,
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struct wl_resource *resource)
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{
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wl_resource_destroy (resource);
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}
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static gboolean
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application_is_in_pattern_array (MetaWindow *window,
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GPtrArray *pattern_array)
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{
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guint i;
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for (i = 0; pattern_array && i < pattern_array->len; i++)
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{
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GPatternSpec *pattern = (GPatternSpec *) g_ptr_array_index (pattern_array, i);
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if ((window->res_class && g_pattern_match_string (pattern, window->res_class)) ||
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(window->res_name && g_pattern_match_string (pattern, window->res_name)))
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return TRUE;
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}
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return FALSE;
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}
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static gboolean
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meta_xwayland_grab_is_granted (MetaWindow *window)
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{
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MetaBackend *backend;
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MetaSettings *settings;
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GPtrArray *whitelist;
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GPtrArray *blacklist;
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gboolean may_grab;
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backend = meta_get_backend ();
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settings = meta_backend_get_settings (backend);
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if (!meta_settings_are_xwayland_grabs_allowed (settings))
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return FALSE;
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/* Check whether the window is blacklisted */
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meta_settings_get_xwayland_grab_patterns (settings, &whitelist, &blacklist);
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if (blacklist && application_is_in_pattern_array (window, blacklist))
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return FALSE;
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/* Check if we are dealing with good citizen Xwayland client whitelisting itself. */
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g_object_get (G_OBJECT (window), "xwayland-may-grab-keyboard", &may_grab, NULL);
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if (may_grab)
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return TRUE;
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/* Last resort, is it white listed. */
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if (whitelist && application_is_in_pattern_array (window, whitelist))
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return TRUE;
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return FALSE;
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}
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static void
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meta_xwayland_keyboard_grab_activate (MetaXwaylandKeyboardActiveGrab *active_grab)
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{
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MetaWaylandSurface *surface = active_grab->surface;
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MetaWindow *window = surface->window;
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MetaWaylandSeat *seat = active_grab->seat;
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if (meta_xwayland_grab_is_granted (window))
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{
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meta_verbose ("XWayland window %s has a grab granted", window->desc);
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meta_wayland_surface_inhibit_shortcuts (surface, seat);
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/* Use a grab for O-R windows which never receive keyboard focus otherwise */
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if (window->override_redirect)
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meta_wayland_keyboard_start_grab (seat->keyboard, &active_grab->keyboard_grab);
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}
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if (active_grab->window_associate_handler)
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{
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g_signal_handler_disconnect (active_grab->surface->role,
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active_grab->window_associate_handler);
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active_grab->window_associate_handler = 0;
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}
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}
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static void
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meta_xwayland_keyboard_window_associated (MetaWaylandSurfaceRole *surface_role,
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MetaXwaylandKeyboardActiveGrab *active_grab)
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{
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meta_xwayland_keyboard_grab_activate (active_grab);
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}
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static void
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zwp_xwayland_keyboard_grab_manager_grab (struct wl_client *client,
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struct wl_resource *resource,
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uint32_t id,
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struct wl_resource *surface_resource,
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struct wl_resource *seat_resource)
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{
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MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
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MetaWindow *window = surface->window;
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MetaWaylandSeat *seat = wl_resource_get_user_data (seat_resource);
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MetaXwaylandKeyboardActiveGrab *active_grab;
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struct wl_resource *grab_resource;
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grab_resource = wl_resource_create (client,
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&zwp_xwayland_keyboard_grab_manager_v1_interface,
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wl_resource_get_version (resource),
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id);
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active_grab = g_new0 (MetaXwaylandKeyboardActiveGrab, 1);
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active_grab->surface = surface;
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active_grab->resource = grab_resource;
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active_grab->seat = seat;
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active_grab->keyboard_grab.interface = &keyboard_grab_interface;
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active_grab->surface_destroyed_handler =
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g_signal_connect (surface, "destroy",
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G_CALLBACK (surface_destroyed_cb),
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active_grab);
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active_grab->shortcuts_restored_handler =
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g_signal_connect (surface, "shortcuts-restored",
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G_CALLBACK (shortcuts_restored_cb),
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active_grab);
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if (window)
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meta_xwayland_keyboard_grab_activate (active_grab);
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else if (surface->role)
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active_grab->window_associate_handler =
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g_signal_connect (surface->role, "window-associated",
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G_CALLBACK (meta_xwayland_keyboard_window_associated),
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active_grab);
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else
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g_warning ("Cannot grant Xwayland grab to surface %p", surface);
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wl_resource_set_implementation (grab_resource,
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&xwayland_keyboard_grab_interface,
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active_grab,
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zwp_xwayland_keyboard_grab_destructor);
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}
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static const struct zwp_xwayland_keyboard_grab_manager_v1_interface
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meta_keyboard_grab_manager_interface = {
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zwp_xwayland_keyboard_grab_manager_destroy,
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zwp_xwayland_keyboard_grab_manager_grab,
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};
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static void
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bind_keyboard_grab (struct wl_client *client,
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void *data,
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uint32_t version,
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uint32_t id)
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{
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struct wl_resource *resource;
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resource = wl_resource_create (client,
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&zwp_xwayland_keyboard_grab_manager_v1_interface,
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MIN (META_ZWP_XWAYLAND_KEYBOARD_GRAB_V1_VERSION, version),
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id);
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wl_resource_set_implementation (resource,
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&meta_keyboard_grab_manager_interface,
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NULL, NULL);
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}
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gboolean
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meta_xwayland_grab_keyboard_init (MetaWaylandCompositor *compositor)
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{
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return (wl_global_create (compositor->wayland_display,
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&zwp_xwayland_keyboard_grab_manager_v1_interface,
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META_ZWP_XWAYLAND_KEYBOARD_GRAB_V1_VERSION,
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NULL,
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bind_keyboard_grab) != NULL);
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}
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