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mutter-performance-source/src/core/events.c
Jonas Ådahl 317b734dcc Move cursor tracker ownership to the backend
Let the backend initialize the cursor tracker, and change all call
sites to get the cursor tracker from the backend instead of from the
screen. It wasn't associated with the screen anyway, so the API was
missleading.

https://bugzilla.gnome.org/show_bug.cgi?id=777732
2017-01-25 16:28:51 +08:00

436 lines
14 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2002, 2003, 2004 Red Hat, Inc.
* Copyright (C) 2003, 2004 Rob Adams
* Copyright (C) 2004-2006 Elijah Newren
*
* 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/>.
*/
#include "config.h"
#include "events.h"
#include <meta/meta-backend.h>
#include "display-private.h"
#include "window-private.h"
#include "backends/x11/meta-backend-x11.h"
#include "backends/meta-cursor-tracker-private.h"
#ifdef HAVE_NATIVE_BACKEND
#include "backends/native/meta-backend-native.h"
#include "backends/native/meta-idle-monitor-native.h"
#endif
#ifdef HAVE_WAYLAND
#include "wayland/meta-wayland-private.h"
#endif
#include "meta-surface-actor.h"
#define IS_GESTURE_EVENT(e) ((e)->type == CLUTTER_TOUCHPAD_SWIPE || \
(e)->type == CLUTTER_TOUCHPAD_PINCH || \
(e)->type == CLUTTER_TOUCH_BEGIN || \
(e)->type == CLUTTER_TOUCH_UPDATE || \
(e)->type == CLUTTER_TOUCH_END || \
(e)->type == CLUTTER_TOUCH_CANCEL)
#define IS_KEY_EVENT(e) ((e)->type == CLUTTER_KEY_PRESS || \
(e)->type == CLUTTER_KEY_RELEASE)
static gboolean
stage_has_key_focus (void)
{
MetaBackend *backend = meta_get_backend ();
ClutterActor *stage = meta_backend_get_stage (backend);
return clutter_stage_get_key_focus (CLUTTER_STAGE (stage)) == stage;
}
static MetaWindow *
get_window_for_event (MetaDisplay *display,
const ClutterEvent *event)
{
switch (display->event_route)
{
case META_EVENT_ROUTE_NORMAL:
{
ClutterActor *source;
/* Always use the key focused window for key events. */
if (IS_KEY_EVENT (event))
return stage_has_key_focus () ? display->focus_window : NULL;
source = clutter_event_get_source (event);
if (META_IS_SURFACE_ACTOR (source))
return meta_surface_actor_get_window (META_SURFACE_ACTOR (source));
else
return NULL;
}
case META_EVENT_ROUTE_WINDOW_OP:
case META_EVENT_ROUTE_COMPOSITOR_GRAB:
case META_EVENT_ROUTE_WAYLAND_POPUP:
case META_EVENT_ROUTE_FRAME_BUTTON:
return display->grab_window;
default:
g_assert_not_reached ();
}
}
static void
handle_idletime_for_event (const ClutterEvent *event)
{
#ifdef HAVE_NATIVE_BACKEND
/* This is handled by XSync under X11. */
MetaBackend *backend = meta_get_backend ();
if (META_IS_BACKEND_NATIVE (backend))
{
ClutterInputDevice *device, *source_device;
MetaIdleMonitor *core_monitor, *device_monitor;
int device_id;
device = clutter_event_get_device (event);
if (device == NULL)
return;
if (event->any.flags & CLUTTER_EVENT_FLAG_SYNTHETIC ||
event->type == CLUTTER_ENTER ||
event->type == CLUTTER_LEAVE ||
event->type == CLUTTER_STAGE_STATE ||
event->type == CLUTTER_DESTROY_NOTIFY ||
event->type == CLUTTER_CLIENT_MESSAGE ||
event->type == CLUTTER_DELETE)
return;
device_id = clutter_input_device_get_device_id (device);
core_monitor = meta_idle_monitor_get_core ();
device_monitor = meta_idle_monitor_get_for_device (device_id);
meta_idle_monitor_native_reset_idletime (core_monitor);
meta_idle_monitor_native_reset_idletime (device_monitor);
source_device = clutter_event_get_source_device (event);
if (source_device != device)
{
device_id = clutter_input_device_get_device_id (device);
device_monitor = meta_idle_monitor_get_for_device (device_id);
meta_idle_monitor_native_reset_idletime (device_monitor);
}
}
#endif /* HAVE_NATIVE_BACKEND */
}
static gboolean
sequence_is_pointer_emulated (MetaDisplay *display,
const ClutterEvent *event)
{
ClutterEventSequence *sequence;
sequence = clutter_event_get_event_sequence (event);
if (!sequence)
return FALSE;
if (clutter_event_is_pointer_emulated (event))
return TRUE;
#ifdef HAVE_NATIVE_BACKEND
MetaBackend *backend = meta_get_backend ();
/* When using Clutter's native input backend there is no concept of
* pointer emulating sequence, we still must make up our own to be
* able to implement single-touch (hence pointer alike) behavior.
*
* This is implemented similarly to X11, where only the first touch
* on screen gets the "pointer emulated" flag, and it won't get assigned
* to another sequence until the next first touch on an idle touchscreen.
*/
if (META_IS_BACKEND_NATIVE (backend))
{
MetaGestureTracker *tracker;
tracker = meta_display_get_gesture_tracker (display);
if (event->type == CLUTTER_TOUCH_BEGIN &&
meta_gesture_tracker_get_n_current_touches (tracker) == 0)
return TRUE;
}
#endif /* HAVE_NATIVE_BACKEND */
return FALSE;
}
static gboolean
meta_display_handle_event (MetaDisplay *display,
const ClutterEvent *event)
{
MetaBackend *backend = meta_get_backend ();
MetaWindow *window;
gboolean bypass_clutter = FALSE;
G_GNUC_UNUSED gboolean bypass_wayland = FALSE;
MetaGestureTracker *gesture_tracker;
ClutterEventSequence *sequence;
ClutterInputDevice *source;
sequence = clutter_event_get_event_sequence (event);
/* Set the pointer emulating sequence on touch begin, if eligible */
if (event->type == CLUTTER_TOUCH_BEGIN)
{
if (sequence_is_pointer_emulated (display, event))
{
/* This is the new pointer emulating sequence */
display->pointer_emulating_sequence = sequence;
}
else if (display->pointer_emulating_sequence == sequence)
{
/* This sequence was "pointer emulating" in a prior incarnation,
* but now it isn't. We unset the pointer emulating sequence at
* this point so the current sequence is not mistaken as pointer
* emulating, while we've ensured that it's been deemed
* "pointer emulating" throughout all of the event processing
* of the previous incarnation.
*/
display->pointer_emulating_sequence = NULL;
}
}
#ifdef HAVE_WAYLAND
MetaWaylandCompositor *compositor = NULL;
if (meta_is_wayland_compositor ())
{
compositor = meta_wayland_compositor_get_default ();
meta_wayland_compositor_update (compositor, event);
}
#endif
if (!display->current_pad_osd &&
(event->type == CLUTTER_PAD_BUTTON_PRESS ||
event->type == CLUTTER_PAD_BUTTON_RELEASE))
{
if (meta_input_settings_handle_pad_button (meta_backend_get_input_settings (backend),
clutter_event_get_source_device (event),
event->type == CLUTTER_PAD_BUTTON_PRESS,
event->pad_button.button))
{
bypass_wayland = bypass_clutter = TRUE;
goto out;
}
}
source = clutter_event_get_source_device (event);
if (source)
{
meta_backend_update_last_device (backend,
clutter_input_device_get_device_id (source));
}
#ifdef HAVE_WAYLAND
if (meta_is_wayland_compositor () && event->type == CLUTTER_MOTION)
{
MetaWaylandCompositor *compositor;
compositor = meta_wayland_compositor_get_default ();
if (meta_wayland_tablet_manager_consumes_event (compositor->tablet_manager, event))
{
meta_wayland_tablet_manager_update_cursor_position (compositor->tablet_manager, event);
}
else
{
MetaCursorTracker *cursor_tracker =
meta_backend_get_cursor_tracker (backend);
meta_cursor_tracker_update_position (cursor_tracker,
event->motion.x,
event->motion.y);
}
display->monitor_cache_invalidated = TRUE;
}
#endif
handle_idletime_for_event (event);
window = get_window_for_event (display, event);
display->current_time = event->any.time;
if (window && !window->override_redirect &&
(event->type == CLUTTER_KEY_PRESS ||
event->type == CLUTTER_BUTTON_PRESS ||
event->type == CLUTTER_TOUCH_BEGIN))
{
if (CurrentTime == display->current_time)
{
/* We can't use missing (i.e. invalid) timestamps to set user time,
* nor do we want to use them to sanity check other timestamps.
* See bug 313490 for more details.
*/
meta_warning ("Event has no timestamp! You may be using a broken "
"program such as xse. Please ask the authors of that "
"program to fix it.\n");
}
else
{
meta_window_set_user_time (window, display->current_time);
meta_display_sanity_check_timestamps (display, display->current_time);
}
}
gesture_tracker = meta_display_get_gesture_tracker (display);
if (meta_gesture_tracker_handle_event (gesture_tracker, event))
{
bypass_wayland = bypass_clutter = TRUE;
goto out;
}
if (display->event_route == META_EVENT_ROUTE_WINDOW_OP)
{
if (meta_window_handle_mouse_grab_op_event (window, event))
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
goto out;
}
}
/* For key events, it's important to enforce single-handling, or
* we can get into a confused state. So if a keybinding is
* handled (because it's one of our hot-keys, or because we are
* in a keyboard-grabbed mode like moving a window, we don't
* want to pass the key event to the compositor or Wayland at all.
*/
if (meta_keybindings_process_event (display, window, event))
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
goto out;
}
/* Do not pass keyboard events to Wayland if key focus is not on the
* stage in normal mode (e.g. during keynav in the panel)
*/
if (display->event_route == META_EVENT_ROUTE_NORMAL)
{
if (IS_KEY_EVENT (event) && !stage_has_key_focus ())
{
bypass_wayland = TRUE;
goto out;
}
}
if (display->current_pad_osd)
{
bypass_wayland = TRUE;
goto out;
}
if (window)
{
/* Events that are likely to trigger compositor gestures should
* be known to clutter so they can propagate along the hierarchy.
* Gesture-wise, there's two groups of events we should be getting
* here:
* - CLUTTER_TOUCH_* with a touch sequence that's not yet accepted
* by the gesture tracker, these might trigger gesture actions
* into recognition. Already accepted touch sequences are handled
* directly by meta_gesture_tracker_handle_event().
* - CLUTTER_TOUCHPAD_* events over windows. These can likewise
* trigger ::captured-event handlers along the way.
*/
bypass_clutter = !IS_GESTURE_EVENT (event);
meta_window_handle_ungrabbed_event (window, event);
/* This might start a grab op. If it does, then filter out the
* event, and if it doesn't, replay the event to release our
* own sync grab. */
if (display->event_route == META_EVENT_ROUTE_WINDOW_OP ||
display->event_route == META_EVENT_ROUTE_FRAME_BUTTON)
{
bypass_clutter = TRUE;
bypass_wayland = TRUE;
}
else
{
/* Only replay button press events, since that's where we
* have the synchronous grab. */
if (event->type == CLUTTER_BUTTON_PRESS)
{
if (META_IS_BACKEND_X11 (backend))
{
Display *xdisplay = meta_backend_x11_get_xdisplay (META_BACKEND_X11 (backend));
meta_verbose ("Allowing events time %u\n",
(unsigned int)event->button.time);
XIAllowEvents (xdisplay, clutter_event_get_device_id (event),
XIReplayDevice, event->button.time);
}
}
}
goto out;
}
out:
/* If the compositor has a grab, don't pass that through to Wayland */
if (display->event_route == META_EVENT_ROUTE_COMPOSITOR_GRAB)
bypass_wayland = TRUE;
/* If a Wayland client has a grab, don't pass that through to Clutter */
if (display->event_route == META_EVENT_ROUTE_WAYLAND_POPUP)
bypass_clutter = TRUE;
#ifdef HAVE_WAYLAND
if (compositor && !bypass_wayland)
{
if (meta_wayland_compositor_handle_event (compositor, event))
bypass_clutter = TRUE;
}
#endif
display->current_time = CurrentTime;
return bypass_clutter;
}
static gboolean
event_callback (const ClutterEvent *event,
gpointer data)
{
MetaDisplay *display = data;
return meta_display_handle_event (display, event);
}
void
meta_display_init_events (MetaDisplay *display)
{
display->clutter_event_filter = clutter_event_add_filter (NULL,
event_callback,
NULL,
display);
}
void
meta_display_free_events (MetaDisplay *display)
{
clutter_event_remove_filter (display->clutter_event_filter);
display->clutter_event_filter = 0;
}