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https://github.com/brl/mutter.git
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75e8bab1c1
Use the new event constructors to create input events, instead of creating them through clutter_event_new (CLUTTER_NOTHING) and struct field fiddling. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3153>
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/* Copyright (C) 2006, 2007, 2008 OpenedHand Ltd
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* Copyright (C) 2009, 2010 Intel Corp.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*
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* Authored by:
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* Matthew Allum <mallum@openedhand.com>
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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#include "config.h"
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#include <glib.h>
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#include <string.h>
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#include "backends/x11/meta-backend-x11.h"
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#include "backends/x11/meta-event-x11.h"
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#include "backends/x11/meta-seat-x11.h"
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#include "backends/x11/meta-stage-x11.h"
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#include "clutter/clutter-mutter.h"
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#include "cogl/cogl-xlib.h"
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/**
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* meta_backend_x11_handle_event:
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* @backend: backend
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* @xevent: pointer to XEvent structure
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*
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* This function processes a single X event; it can be used to hook
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* into external X11 event processing.
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*/
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void
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meta_backend_x11_handle_event (MetaBackend *backend,
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XEvent *xevent)
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{
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ClutterBackend *clutter_backend;
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ClutterEvent *event;
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MetaSeatX11 *seat_x11;
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MetaStageX11 *stage_x11;
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gint spin = 1;
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Display *xdisplay;
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gboolean allocated_event;
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clutter_backend = meta_backend_get_clutter_backend (backend);
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xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
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allocated_event = XGetEventData (xdisplay, &xevent->xcookie);
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if (cogl_xlib_renderer_handle_event (clutter_backend->cogl_renderer,
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xevent) == COGL_FILTER_REMOVE)
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goto out;
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stage_x11 =
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META_STAGE_X11 (clutter_backend_get_stage_window (clutter_backend));
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meta_stage_x11_handle_event (stage_x11, xevent);
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seat_x11 = META_SEAT_X11 (meta_backend_get_default_seat (backend));
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event = meta_seat_x11_translate_event (seat_x11, xevent);
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if (!event)
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goto out;
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_clutter_event_push (event, FALSE);
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/*
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* Motion events can generate synthetic enter and leave events, so if we
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* are processing a motion event, we need to spin the event loop at least
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* two extra times to pump the enter/leave events through (otherwise they
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* just get pushed down the queue and never processed).
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*/
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if (event->type == CLUTTER_MOTION)
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spin += 2;
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while (spin > 0 && (event = clutter_event_get ()))
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{
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/* forward the event into clutter for emission etc. */
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clutter_stage_handle_event (CLUTTER_STAGE (meta_backend_get_stage (backend)),
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event);
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meta_backend_update_from_event (backend, event);
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clutter_event_free (event);
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--spin;
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}
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out:
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if (allocated_event)
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XFreeEventData (xdisplay, &xevent->xcookie);
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}
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