mirror of
https://github.com/brl/mutter.git
synced 2024-11-27 18:40:40 -05:00
core: Add helper code to handle input events
These will be used with every input event out there so they're dealt with uniformly.
This commit is contained in:
Carlos Garnacho
parent
7573aae855
commit
38a0aecf61
@ -97,6 +97,8 @@ libmutter_la_SOURCES = \
|
||||
meta/group.h \
|
||||
core/iconcache.c \
|
||||
core/iconcache.h \
|
||||
core/input-events.c \
|
||||
core/input-events.h \
|
||||
core/keybindings.c \
|
||||
core/keybindings-private.h \
|
||||
core/main.c \
|
||||
|
||||
497
src/core/input-events.c
Normal file
497
src/core/input-events.c
Normal file
@ -0,0 +1,497 @@
|
||||
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
||||
|
||||
/* XEvent utility methods */
|
||||
|
||||
/*
|
||||
* Copyright (C) 2011 Carlos Garnacho
|
||||
*
|
||||
* 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, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
||||
* 02111-1307, USA.
|
||||
*/
|
||||
|
||||
#include <config.h>
|
||||
#include "input-events.h"
|
||||
#include <X11/Xlib.h>
|
||||
|
||||
#ifdef HAVE_XINPUT2
|
||||
#include <X11/extensions/XInput2.h>
|
||||
#endif
|
||||
|
||||
/* Quite a hack: normalizes XI2 events to their
|
||||
* core event equivalent, so most code is shared
|
||||
* for both implementations, code handling input
|
||||
* events should use the helper functions so
|
||||
* the actual event is treated correctly.
|
||||
*/
|
||||
gboolean
|
||||
meta_input_event_get_type (MetaDisplay *display,
|
||||
XEvent *ev,
|
||||
guint *ev_type)
|
||||
{
|
||||
guint type = 0; /* Silence gcc */
|
||||
gboolean retval = TRUE;
|
||||
|
||||
#ifdef HAVE_XINPUT2
|
||||
if (display->have_xinput2 &&
|
||||
ev->type == GenericEvent &&
|
||||
ev->xcookie.extension == display->xinput2_opcode)
|
||||
{
|
||||
XIEvent *xev;
|
||||
|
||||
/* NB: GDK event filters already have generic events
|
||||
* allocated, so no need to do XGetEventData() on our own
|
||||
*/
|
||||
xev = (XIEvent *) ev->xcookie.data;
|
||||
|
||||
switch (xev->evtype)
|
||||
{
|
||||
case XI_Motion:
|
||||
type = MotionNotify;
|
||||
break;
|
||||
case XI_ButtonPress:
|
||||
type = ButtonPress;
|
||||
break;
|
||||
case XI_ButtonRelease:
|
||||
type = ButtonRelease;
|
||||
break;
|
||||
case XI_KeyPress:
|
||||
type = KeyPress;
|
||||
break;
|
||||
case XI_KeyRelease:
|
||||
type = KeyRelease;
|
||||
break;
|
||||
case XI_FocusIn:
|
||||
type = FocusIn;
|
||||
break;
|
||||
case XI_FocusOut:
|
||||
type = FocusOut;
|
||||
break;
|
||||
case XI_Enter:
|
||||
type = EnterNotify;
|
||||
break;
|
||||
case XI_Leave:
|
||||
type = LeaveNotify;
|
||||
break;
|
||||
default:
|
||||
retval = FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
#endif /* HAVE_XINPUT2 */
|
||||
{
|
||||
switch (ev->type)
|
||||
{
|
||||
case MotionNotify:
|
||||
case ButtonPress:
|
||||
case ButtonRelease:
|
||||
case KeyPress:
|
||||
case KeyRelease:
|
||||
case FocusIn:
|
||||
case FocusOut:
|
||||
case EnterNotify:
|
||||
case LeaveNotify:
|
||||
type = ev->type;
|
||||
break;
|
||||
default:
|
||||
retval = FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (retval)
|
||||
{
|
||||
if (ev_type)
|
||||
*ev_type = type;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
else
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
||||
Window
|
||||
meta_input_event_get_window (MetaDisplay *display,
|
||||
XEvent *ev)
|
||||
{
|
||||
#ifdef HAVE_XINPUT2
|
||||
if (ev->type == GenericEvent &&
|
||||
ev->xcookie.extension == display->xinput2_opcode)
|
||||
{
|
||||
XIEvent *xev;
|
||||
|
||||
g_assert (display->have_xinput2 == TRUE);
|
||||
|
||||
/* GDK event filters already have generic events allocated */
|
||||
xev = (XIEvent *) ev->xcookie.data;
|
||||
|
||||
switch (xev->evtype)
|
||||
{
|
||||
case XI_Motion:
|
||||
case XI_ButtonPress:
|
||||
case XI_ButtonRelease:
|
||||
case XI_KeyPress:
|
||||
case XI_KeyRelease:
|
||||
return ((XIDeviceEvent *) xev)->event;
|
||||
case XI_FocusIn:
|
||||
case XI_FocusOut:
|
||||
case XI_Enter:
|
||||
case XI_Leave:
|
||||
return ((XIEnterEvent *) xev)->event;
|
||||
default:
|
||||
return None;
|
||||
}
|
||||
}
|
||||
else
|
||||
#endif /* HAVE_XINPUT2 */
|
||||
return ev->xany.window;
|
||||
}
|
||||
|
||||
Window
|
||||
meta_input_event_get_root_window (MetaDisplay *display,
|
||||
XEvent *ev)
|
||||
{
|
||||
#ifdef HAVE_XINPUT2
|
||||
if (ev->type == GenericEvent &&
|
||||
ev->xcookie.extension == display->xinput2_opcode)
|
||||
{
|
||||
XIEvent *xev;
|
||||
|
||||
g_assert (display->have_xinput2 == TRUE);
|
||||
|
||||
xev = (XIEvent *) ev->xcookie.data;
|
||||
|
||||
switch (xev->evtype)
|
||||
{
|
||||
case XI_Motion:
|
||||
case XI_ButtonPress:
|
||||
case XI_ButtonRelease:
|
||||
case XI_KeyPress:
|
||||
case XI_KeyRelease:
|
||||
return ((XIDeviceEvent *) xev)->root;
|
||||
case XI_FocusIn:
|
||||
case XI_FocusOut:
|
||||
case XI_Enter:
|
||||
case XI_Leave:
|
||||
return ((XIEnterEvent *) xev)->root;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
#endif /* HAVE_XINPUT2 */
|
||||
{
|
||||
switch (ev->type)
|
||||
{
|
||||
case KeyPress:
|
||||
case KeyRelease:
|
||||
return ev->xkey.root;
|
||||
case ButtonPress:
|
||||
case ButtonRelease:
|
||||
return ev->xbutton.root;
|
||||
case EnterNotify:
|
||||
case LeaveNotify:
|
||||
return ev->xcrossing.root;
|
||||
case MotionNotify:
|
||||
return ev->xbutton.root;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return None;
|
||||
}
|
||||
|
||||
Time
|
||||
meta_input_event_get_time (MetaDisplay *display,
|
||||
XEvent *ev)
|
||||
{
|
||||
#ifdef HAVE_XINPUT2
|
||||
if (ev->type == GenericEvent &&
|
||||
ev->xcookie.extension == display->xinput2_opcode)
|
||||
{
|
||||
XIEvent *xev;
|
||||
|
||||
g_assert (display->have_xinput2 == TRUE);
|
||||
|
||||
xev = (XIEvent *) ev->xcookie.data;
|
||||
|
||||
switch (xev->evtype)
|
||||
{
|
||||
case XI_Motion:
|
||||
case XI_ButtonPress:
|
||||
case XI_ButtonRelease:
|
||||
case XI_KeyPress:
|
||||
case XI_KeyRelease:
|
||||
return ((XIDeviceEvent *) xev)->time;
|
||||
case XI_FocusIn:
|
||||
case XI_FocusOut:
|
||||
case XI_Enter:
|
||||
case XI_Leave:
|
||||
return ((XIEnterEvent *) xev)->time;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
#endif /* HAVE_XINPUT2 */
|
||||
{
|
||||
switch (ev->type)
|
||||
{
|
||||
case KeyPress:
|
||||
case KeyRelease:
|
||||
return ev->xkey.time;
|
||||
case ButtonPress:
|
||||
case ButtonRelease:
|
||||
return ev->xbutton.time;
|
||||
case EnterNotify:
|
||||
case LeaveNotify:
|
||||
return ev->xcrossing.time;
|
||||
case MotionNotify:
|
||||
return ev->xmotion.time;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return CurrentTime;
|
||||
}
|
||||
|
||||
gboolean
|
||||
meta_input_event_get_coordinates (MetaDisplay *display,
|
||||
XEvent *ev,
|
||||
gdouble *x_ret,
|
||||
gdouble *y_ret,
|
||||
gdouble *x_root_ret,
|
||||
gdouble *y_root_ret)
|
||||
{
|
||||
gdouble x, y, x_root, y_root;
|
||||
gboolean retval = TRUE;
|
||||
|
||||
#ifdef HAVE_XINPUT2
|
||||
if (ev->type == GenericEvent &&
|
||||
ev->xcookie.extension == display->xinput2_opcode)
|
||||
{
|
||||
XIEvent *xev;
|
||||
|
||||
g_assert (display->have_xinput2 == TRUE);
|
||||
|
||||
xev = (XIEvent *) ev->xcookie.data;
|
||||
|
||||
switch (xev->evtype)
|
||||
{
|
||||
case XI_Motion:
|
||||
case XI_ButtonPress:
|
||||
case XI_ButtonRelease:
|
||||
case XI_KeyPress:
|
||||
case XI_KeyRelease:
|
||||
{
|
||||
XIDeviceEvent *event = (XIDeviceEvent *) xev;
|
||||
|
||||
x = event->event_x;
|
||||
y = event->event_y;
|
||||
x_root = event->root_x;
|
||||
y_root = event->root_y;
|
||||
}
|
||||
|
||||
break;
|
||||
case XI_FocusIn:
|
||||
case XI_FocusOut:
|
||||
case XI_Enter:
|
||||
case XI_Leave:
|
||||
{
|
||||
XIEnterEvent *event = (XIEnterEvent *) xev;
|
||||
|
||||
x = event->event_x;
|
||||
y = event->event_y;
|
||||
x_root = event->root_x;
|
||||
y_root = event->root_y;
|
||||
}
|
||||
|
||||
break;
|
||||
default:
|
||||
retval = FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
#endif /* HAVE_XINPUT2 */
|
||||
{
|
||||
switch (ev->type)
|
||||
{
|
||||
case KeyPress:
|
||||
case KeyRelease:
|
||||
x = ev->xkey.x;
|
||||
y = ev->xkey.y;
|
||||
x_root = ev->xkey.x_root;
|
||||
y_root = ev->xkey.y_root;
|
||||
break;
|
||||
case ButtonPress:
|
||||
case ButtonRelease:
|
||||
x = ev->xbutton.x;
|
||||
y = ev->xbutton.y;
|
||||
x_root = ev->xbutton.x_root;
|
||||
y_root = ev->xbutton.y_root;
|
||||
break;
|
||||
case EnterNotify:
|
||||
case LeaveNotify:
|
||||
x = ev->xcrossing.x;
|
||||
y = ev->xcrossing.y;
|
||||
x_root = ev->xcrossing.x_root;
|
||||
y_root = ev->xcrossing.y_root;
|
||||
break;
|
||||
case MotionNotify:
|
||||
x = ev->xmotion.x;
|
||||
y = ev->xmotion.y;
|
||||
x_root = ev->xmotion.x_root;
|
||||
y_root = ev->xmotion.y_root;
|
||||
break;
|
||||
default:
|
||||
retval = FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (retval)
|
||||
{
|
||||
if (x_ret)
|
||||
*x_ret = x;
|
||||
|
||||
if (y_ret)
|
||||
*y_ret = y;
|
||||
|
||||
if (x_root_ret)
|
||||
*x_root_ret = x_root;
|
||||
|
||||
if (y_root_ret)
|
||||
*y_root_ret = y_root;
|
||||
}
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
gboolean
|
||||
meta_input_event_get_state (MetaDisplay *display,
|
||||
XEvent *ev,
|
||||
guint *state)
|
||||
{
|
||||
gboolean retval = TRUE;
|
||||
guint s;
|
||||
|
||||
#ifdef HAVE_XINPUT2
|
||||
if (ev->type == GenericEvent &&
|
||||
ev->xcookie.extension == display->xinput2_opcode)
|
||||
{
|
||||
XIEvent *xev;
|
||||
|
||||
g_assert (display->have_xinput2 == TRUE);
|
||||
|
||||
xev = (XIEvent *) ev->xcookie.data;
|
||||
|
||||
switch (xev->evtype)
|
||||
{
|
||||
case XI_Motion:
|
||||
case XI_ButtonPress:
|
||||
case XI_ButtonRelease:
|
||||
case XI_KeyPress:
|
||||
case XI_KeyRelease:
|
||||
s = ((XIDeviceEvent *) xev)->mods.effective;
|
||||
break;
|
||||
case XI_FocusIn:
|
||||
case XI_FocusOut:
|
||||
case XI_Enter:
|
||||
case XI_Leave:
|
||||
s = ((XIDeviceEvent *) xev)->mods.effective;
|
||||
break;
|
||||
default:
|
||||
retval = FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
#endif /* HAVE_XINPUT2 */
|
||||
{
|
||||
switch (ev->type)
|
||||
{
|
||||
case KeyPress:
|
||||
case KeyRelease:
|
||||
s = ev->xkey.state;
|
||||
break;
|
||||
case ButtonPress:
|
||||
case ButtonRelease:
|
||||
s = ev->xbutton.state;
|
||||
break;
|
||||
case EnterNotify:
|
||||
case LeaveNotify:
|
||||
s = ev->xcrossing.state;
|
||||
break;
|
||||
case MotionNotify:
|
||||
s = ev->xmotion.state;
|
||||
break;
|
||||
default:
|
||||
retval = FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (retval && state)
|
||||
*state = s;
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
gboolean
|
||||
meta_input_event_get_keycode (MetaDisplay *display,
|
||||
XEvent *ev,
|
||||
guint *keycode)
|
||||
{
|
||||
#ifdef HAVE_XINPUT2
|
||||
if (ev->type == GenericEvent &&
|
||||
ev->xcookie.extension == display->xinput2_opcode)
|
||||
{
|
||||
XIEvent *xev;
|
||||
|
||||
g_assert (display->have_xinput2 == TRUE);
|
||||
|
||||
xev = (XIEvent *) ev->xcookie.data;
|
||||
|
||||
if (xev->evtype == XI_KeyPress ||
|
||||
xev->evtype == XI_KeyRelease)
|
||||
{
|
||||
if (keycode)
|
||||
{
|
||||
/* The detail field contains keycode for key events */
|
||||
*keycode = ((XIDeviceEvent *) xev)->detail;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
#endif /* HAVE_XINPUT2 */
|
||||
{
|
||||
if (ev->type == KeyPress ||
|
||||
ev->type == KeyRelease)
|
||||
{
|
||||
if (keycode)
|
||||
*keycode = ev->xkey.keycode;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
64
src/core/input-events.h
Normal file
64
src/core/input-events.h
Normal file
@ -0,0 +1,64 @@
|
||||
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
||||
|
||||
/**
|
||||
* \file event.h Utility functions for handling events
|
||||
*
|
||||
* Handling events.
|
||||
* This file contains helper methods to handle events, specially
|
||||
* input events, which can be either core or XInput2.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (C) 2011 Carlos Garnacho
|
||||
*
|
||||
* 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, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
||||
* 02111-1307, USA.
|
||||
*/
|
||||
|
||||
#ifndef META_EVENT_H
|
||||
#define META_EVENT_H
|
||||
|
||||
#include <config.h>
|
||||
#include <X11/Xlib.h>
|
||||
#include "display-private.h"
|
||||
|
||||
|
||||
gboolean meta_input_event_get_type (MetaDisplay *display,
|
||||
XEvent *ev,
|
||||
guint *ev_type);
|
||||
|
||||
Window meta_input_event_get_window (MetaDisplay *display,
|
||||
XEvent *ev);
|
||||
Window meta_input_event_get_root_window (MetaDisplay *display,
|
||||
XEvent *ev);
|
||||
|
||||
Time meta_input_event_get_time (MetaDisplay *display,
|
||||
XEvent *ev);
|
||||
|
||||
gboolean meta_input_event_get_coordinates (MetaDisplay *display,
|
||||
XEvent *ev,
|
||||
gdouble *x_ret,
|
||||
gdouble *y_ret,
|
||||
gdouble *x_root_ret,
|
||||
gdouble *y_root_ret);
|
||||
|
||||
gboolean meta_input_event_get_state (MetaDisplay *display,
|
||||
XEvent *ev,
|
||||
guint *state);
|
||||
gboolean meta_input_event_get_keycode (MetaDisplay *display,
|
||||
XEvent *ev,
|
||||
guint *keycode);
|
||||
|
||||
#endif /* META_EVENT_H */
|
||||
Loading…
Reference in New Issue
Block a user