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mutter/src/core/keybindings.c
Owen W. Taylor 7b0ba87b24 Fix custom-alt-tabs for single-handling of key events 
The changes to enforce single handling of all key events were breaking
custom-alt-tab keypress handlers, since that code was assuming that
key event would get to process_tab_grab(), and then maybe to
process_event() and then to the plugin's xevent_filter to detect a
key release.

We centeralize all of this handling into process_tab_grab() and either

 - Invoke a custom handler for the key press
 - Select the current window on modifier release by calling a  new
   pseudo-binding "tab_popup_select"
 - Cancel the grab on an unbound key by calling a new pseudo-binding
   "tab_popup_cancel"

http://bugzilla.gnome.org/show_bug.cgi?id=590754
2009-08-26 12:26:58 -04:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Mutter Keybindings */
/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2002 Red Hat Inc.
* Copyright (C) 2003 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#define _GNU_SOURCE
#define _SVID_SOURCE /* for putenv() */
#include <config.h>
#include "keybindings-private.h"
#include "workspace-private.h"
#include "errors.h"
#include "edge-resistance.h"
#include "ui.h"
#include "frame-private.h"
#include "place.h"
#include "prefs.h"
#include "util.h"
#include <X11/keysym.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif
static gboolean all_bindings_disabled = FALSE;
/* Prototypes for handlers */
#define keybind(name, handler, param, flags, stroke, description) \
static void \
handler (MetaDisplay *display,\
MetaScreen *screen,\
MetaWindow *window,\
XEvent *event,\
MetaKeyBinding *binding, \
gpointer user_data);
#include "all-keybindings.h"
#undef keybind
/* These can't be bound to anything, but they are used to handle
* various other events. TODO: Possibly we should include them as event
* handler functions and have some kind of flag to say they're unbindable.
*/
static void handle_workspace_switch (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy);
static gboolean process_mouse_move_resize_grab (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
KeySym keysym);
static gboolean process_keyboard_move_grab (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
KeySym keysym);
static gboolean process_keyboard_resize_grab (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
KeySym keysym);
static gboolean process_tab_grab (MetaDisplay *display,
MetaScreen *screen,
XEvent *event,
KeySym keysym);
static gboolean process_workspace_switch_grab (MetaDisplay *display,
MetaScreen *screen,
XEvent *event,
KeySym keysym);
static void regrab_key_bindings (MetaDisplay *display);
#define keybind(name, handler, param, flags, stroke, description) \
{ #name, handler, handler, param, flags, NULL, NULL },
static MetaKeyHandler key_handlers[] = {
#include "all-keybindings.h"
{ NULL, NULL, NULL, 0, 0, NULL, NULL }
};
#undef keybind
static void
reload_keymap (MetaDisplay *display)
{
if (display->keymap)
meta_XFree (display->keymap);
display->keymap = XGetKeyboardMapping (display->xdisplay,
display->min_keycode,
display->max_keycode -
display->min_keycode + 1,
&display->keysyms_per_keycode);
}
static void
reload_modmap (MetaDisplay *display)
{
XModifierKeymap *modmap;
int map_size;
int i;
if (display->modmap)
XFreeModifiermap (display->modmap);
modmap = XGetModifierMapping (display->xdisplay);
display->modmap = modmap;
display->ignored_modifier_mask = 0;
/* Multiple bits may get set in each of these */
display->num_lock_mask = 0;
display->scroll_lock_mask = 0;
display->meta_mask = 0;
display->hyper_mask = 0;
display->super_mask = 0;
/* there are 8 modifiers, and the first 3 are shift, shift lock,
* and control
*/
map_size = 8 * modmap->max_keypermod;
i = 3 * modmap->max_keypermod;
while (i < map_size)
{
/* get the key code at this point in the map,
* see if its keysym is one we're interested in
*/
int keycode = modmap->modifiermap[i];
if (keycode >= display->min_keycode &&
keycode <= display->max_keycode)
{
int j = 0;
KeySym *syms = display->keymap +
(keycode - display->min_keycode) * display->keysyms_per_keycode;
while (j < display->keysyms_per_keycode)
{
if (syms[j] != 0)
{
const char *str;
str = XKeysymToString (syms[j]);
meta_topic (META_DEBUG_KEYBINDINGS,
"Keysym %s bound to modifier 0x%x\n",
str ? str : "none",
(1 << ( i / modmap->max_keypermod)));
}
if (syms[j] == XK_Num_Lock)
{
/* Mod1Mask is 1 << 3 for example, i.e. the
* fourth modifier, i / keyspermod is the modifier
* index
*/
display->num_lock_mask |= (1 << ( i / modmap->max_keypermod));
}
else if (syms[j] == XK_Scroll_Lock)
{
display->scroll_lock_mask |= (1 << ( i / modmap->max_keypermod));
}
else if (syms[j] == XK_Super_L ||
syms[j] == XK_Super_R)
{
display->super_mask |= (1 << ( i / modmap->max_keypermod));
}
else if (syms[j] == XK_Hyper_L ||
syms[j] == XK_Hyper_R)
{
display->hyper_mask |= (1 << ( i / modmap->max_keypermod));
}
else if (syms[j] == XK_Meta_L ||
syms[j] == XK_Meta_R)
{
display->meta_mask |= (1 << ( i / modmap->max_keypermod));
}
++j;
}
}
++i;
}
display->ignored_modifier_mask = (display->num_lock_mask |
display->scroll_lock_mask |
LockMask);
meta_topic (META_DEBUG_KEYBINDINGS,
"Ignoring modmask 0x%x num lock 0x%x scroll lock 0x%x hyper 0x%x super 0x%x meta 0x%x\n",
display->ignored_modifier_mask,
display->num_lock_mask,
display->scroll_lock_mask,
display->hyper_mask,
display->super_mask,
display->meta_mask);
}
static void
reload_keycodes (MetaDisplay *display)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Reloading keycodes for binding tables\n");
if (display->overlay_key_combo.keysym
&& display->overlay_key_combo.keycode == 0)
{
display->overlay_key_combo.keycode = XKeysymToKeycode (
display->xdisplay, display->overlay_key_combo.keysym);
}
if (display->key_bindings)
{
int i;
i = 0;
while (i < display->n_key_bindings)
{
if (display->key_bindings[i].keycode == 0)
display->key_bindings[i].keycode = XKeysymToKeycode (
display->xdisplay, display->key_bindings[i].keysym);
++i;
}
}
}
static void
reload_modifiers (MetaDisplay *display)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Reloading keycodes for binding tables\n");
if (display->key_bindings)
{
int i;
i = 0;
while (i < display->n_key_bindings)
{
meta_display_devirtualize_modifiers (display,
display->key_bindings[i].modifiers,
&display->key_bindings[i].mask);
meta_topic (META_DEBUG_KEYBINDINGS,
" Devirtualized mods 0x%x -> 0x%x (%s)\n",
display->key_bindings[i].modifiers,
display->key_bindings[i].mask,
display->key_bindings[i].name);
++i;
}
}
}
static int
count_bindings (const MetaKeyPref *prefs,
int n_prefs)
{
int i;
int count;
count = 0;
i = 0;
while (i < n_prefs)
{
GSList *tmp = prefs[i].bindings;
while (tmp)
{
MetaKeyCombo *combo = tmp->data;
if (combo && (combo->keysym != None || combo->keycode != 0))
{
count += 1;
if (prefs[i].add_shift &&
(combo->modifiers & META_VIRTUAL_SHIFT_MASK) == 0)
count += 1;
}
tmp = tmp->next;
}
++i;
}
return count;
}
/* FIXME: replace this with a temporary hash */
static MetaKeyHandler*
find_handler (MetaKeyHandler *handlers,
const char *name)
{
MetaKeyHandler *iter;
iter = handlers;
while (iter->name)
{
if (strcmp (iter->name, name) == 0)
return iter;
++iter;
}
return NULL;
}
static void
rebuild_binding_table (MetaDisplay *display,
MetaKeyBinding **bindings_p,
int *n_bindings_p,
const MetaKeyPref *prefs,
int n_prefs)
{
int n_bindings;
int src, dest;
n_bindings = count_bindings (prefs, n_prefs);
g_free (*bindings_p);
*bindings_p = g_new0 (MetaKeyBinding, n_bindings);
src = 0;
dest = 0;
while (src < n_prefs)
{
GSList *tmp = prefs[src].bindings;
while (tmp)
{
MetaKeyCombo *combo = tmp->data;
if (combo && (combo->keysym != None || combo->keycode != 0))
{
MetaKeyHandler *handler = find_handler (key_handlers, prefs[src].name);
(*bindings_p)[dest].name = prefs[src].name;
(*bindings_p)[dest].handler = handler;
(*bindings_p)[dest].keysym = combo->keysym;
(*bindings_p)[dest].keycode = combo->keycode;
(*bindings_p)[dest].modifiers = combo->modifiers;
(*bindings_p)[dest].mask = 0;
++dest;
if (prefs[src].add_shift &&
(combo->modifiers & META_VIRTUAL_SHIFT_MASK) == 0)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Binding %s also needs Shift grabbed\n",
prefs[src].name);
(*bindings_p)[dest].name = prefs[src].name;
(*bindings_p)[dest].handler = handler;
(*bindings_p)[dest].keysym = combo->keysym;
(*bindings_p)[dest].keycode = combo->keycode;
(*bindings_p)[dest].modifiers = combo->modifiers |
META_VIRTUAL_SHIFT_MASK;
(*bindings_p)[dest].mask = 0;
++dest;
}
}
tmp = tmp->next;
}
++src;
}
g_assert (dest == n_bindings);
*n_bindings_p = dest;
meta_topic (META_DEBUG_KEYBINDINGS,
" %d bindings in table\n",
*n_bindings_p);
}
static void
rebuild_key_binding_table (MetaDisplay *display)
{
const MetaKeyPref *prefs;
int n_prefs;
meta_topic (META_DEBUG_KEYBINDINGS,
"Rebuilding key binding table from preferences\n");
meta_prefs_get_key_bindings (&prefs, &n_prefs);
rebuild_binding_table (display,
&display->key_bindings,
&display->n_key_bindings,
prefs, n_prefs);
}
static void
rebuild_special_bindings (MetaDisplay *display)
{
MetaKeyCombo combo;
meta_prefs_get_overlay_binding (&combo);
if (combo.keysym != None || combo.keycode != 0)
{
display->overlay_key_combo = combo;
}
}
static void
regrab_key_bindings (MetaDisplay *display)
{
GSList *tmp;
GSList *windows;
meta_error_trap_push (display); /* for efficiency push outer trap */
tmp = display->screens;
while (tmp != NULL)
{
MetaScreen *screen = tmp->data;
meta_screen_ungrab_keys (screen);
meta_screen_grab_keys (screen);
tmp = tmp->next;
}
windows = meta_display_list_windows (display, META_LIST_DEFAULT);
tmp = windows;
while (tmp != NULL)
{
MetaWindow *w = tmp->data;
meta_window_ungrab_keys (w);
meta_window_grab_keys (w);
tmp = tmp->next;
}
meta_error_trap_pop (display, FALSE);
g_slist_free (windows);
}
static MetaKeyBinding *
display_get_keybinding (MetaDisplay *display,
unsigned int keysym,
unsigned int keycode,
unsigned long mask)
{
int i;
i = display->n_key_bindings - 1;
while (i >= 0)
{
if (display->key_bindings[i].keysym == keysym &&
display->key_bindings[i].keycode == keycode &&
display->key_bindings[i].mask == mask)
{
return &display->key_bindings[i];
}
--i;
}
return NULL;
}
static MetaKeyBindingAction
display_get_keybinding_action (MetaDisplay *display,
unsigned int keysym,
unsigned int keycode,
unsigned long mask)
{
MetaKeyBinding *binding;
binding = display_get_keybinding (display, keysym, keycode, mask);
if (binding)
return meta_prefs_get_keybinding_action (binding->name);
else
return META_KEYBINDING_ACTION_NONE;
}
void
meta_display_process_mapping_event (MetaDisplay *display,
XEvent *event)
{
if (event->xmapping.request == MappingModifier)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Received MappingModifier event, will reload modmap and redo keybindings\n");
reload_modmap (display);
reload_modifiers (display);
regrab_key_bindings (display);
}
else if (event->xmapping.request == MappingKeyboard)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Received MappingKeyboard event, will reload keycodes and redo keybindings\n");
reload_keymap (display);
reload_modmap (display);
reload_keycodes (display);
regrab_key_bindings (display);
}
}
static void
bindings_changed_callback (MetaPreference pref,
void *data)
{
MetaDisplay *display;
display = data;
switch (pref)
{
case META_PREF_KEYBINDINGS:
rebuild_key_binding_table (display);
rebuild_special_bindings (display);
reload_keycodes (display);
reload_modifiers (display);
regrab_key_bindings (display);
break;
default:
break;
}
}
void
meta_display_init_keys (MetaDisplay *display)
{
/* Keybindings */
display->keymap = NULL;
display->keysyms_per_keycode = 0;
display->modmap = NULL;
display->min_keycode = 0;
display->max_keycode = 0;
display->ignored_modifier_mask = 0;
display->num_lock_mask = 0;
display->scroll_lock_mask = 0;
display->hyper_mask = 0;
display->super_mask = 0;
display->meta_mask = 0;
display->key_bindings = NULL;
display->n_key_bindings = 0;
XDisplayKeycodes (display->xdisplay,
&display->min_keycode,
&display->max_keycode);
meta_topic (META_DEBUG_KEYBINDINGS,
"Display has keycode range %d to %d\n",
display->min_keycode,
display->max_keycode);
reload_keymap (display);
reload_modmap (display);
rebuild_key_binding_table (display);
rebuild_special_bindings (display);
reload_keycodes (display);
reload_modifiers (display);
/* Keys are actually grabbed in meta_screen_grab_keys() */
meta_prefs_add_listener (bindings_changed_callback, display);
}
void
meta_display_shutdown_keys (MetaDisplay *display)
{
/* Note that display->xdisplay is invalid in this function */
meta_prefs_remove_listener (bindings_changed_callback, display);
if (display->keymap)
meta_XFree (display->keymap);
if (display->modmap)
XFreeModifiermap (display->modmap);
g_free (display->key_bindings);
}
static const char*
keysym_name (int keysym)
{
const char *name;
name = XKeysymToString (keysym);
if (name == NULL)
name = "(unknown)";
return name;
}
/* Grab/ungrab, ignoring all annoying modifiers like NumLock etc. */
static void
meta_change_keygrab (MetaDisplay *display,
Window xwindow,
gboolean grab,
int keysym,
unsigned int keycode,
int modmask)
{
unsigned int ignored_mask;
/* Grab keycode/modmask, together with
* all combinations of ignored modifiers.
* X provides no better way to do this.
*/
meta_topic (META_DEBUG_KEYBINDINGS,
"%s keybinding %s keycode %d mask 0x%x on 0x%lx\n",
grab ? "Grabbing" : "Ungrabbing",
keysym_name (keysym), keycode,
modmask, xwindow);
/* efficiency, avoid so many XSync() */
meta_error_trap_push (display);
ignored_mask = 0;
while (ignored_mask <= display->ignored_modifier_mask)
{
if (ignored_mask & ~(display->ignored_modifier_mask))
{
/* Not a combination of ignored modifiers
* (it contains some non-ignored modifiers)
*/
++ignored_mask;
continue;
}
if (meta_is_debugging ())
meta_error_trap_push_with_return (display);
if (grab)
XGrabKey (display->xdisplay, keycode,
modmask | ignored_mask,
xwindow,
True,
GrabModeAsync, GrabModeSync);
else
XUngrabKey (display->xdisplay, keycode,
modmask | ignored_mask,
xwindow);
if (meta_is_debugging ())
{
int result;
result = meta_error_trap_pop_with_return (display, FALSE);
if (grab && result != Success)
{
if (result == BadAccess)
meta_warning (_("Some other program is already using the key %s with modifiers %x as a binding\n"), keysym_name (keysym), modmask | ignored_mask);
else
meta_topic (META_DEBUG_KEYBINDINGS,
"Failed to grab key %s with modifiers %x\n",
keysym_name (keysym), modmask | ignored_mask);
}
}
++ignored_mask;
}
meta_error_trap_pop (display, FALSE);
}
static void
meta_grab_key (MetaDisplay *display,
Window xwindow,
int keysym,
unsigned int keycode,
int modmask)
{
meta_change_keygrab (display, xwindow, TRUE, keysym, keycode, modmask);
}
static void
grab_keys (MetaKeyBinding *bindings,
int n_bindings,
MetaDisplay *display,
Window xwindow,
gboolean binding_per_window)
{
int i;
g_assert (n_bindings == 0 || bindings != NULL);
meta_error_trap_push (display);
i = 0;
while (i < n_bindings)
{
if (!!binding_per_window ==
!!(bindings[i].handler->flags & BINDING_PER_WINDOW) &&
bindings[i].keycode != 0)
{
meta_grab_key (display, xwindow,
bindings[i].keysym,
bindings[i].keycode,
bindings[i].mask);
}
++i;
}
meta_error_trap_pop (display, FALSE);
}
static void
ungrab_all_keys (MetaDisplay *display,
Window xwindow)
{
if (meta_is_debugging ())
meta_error_trap_push_with_return (display);
else
meta_error_trap_push (display);
XUngrabKey (display->xdisplay, AnyKey, AnyModifier,
xwindow);
if (meta_is_debugging ())
{
int result;
result = meta_error_trap_pop_with_return (display, FALSE);
if (result != Success)
meta_topic (META_DEBUG_KEYBINDINGS,
"Ungrabbing all keys on 0x%lx failed\n", xwindow);
}
else
meta_error_trap_pop (display, FALSE);
}
void
meta_screen_grab_keys (MetaScreen *screen)
{
MetaDisplay *display = screen->display;
if (screen->all_keys_grabbed)
return;
if (screen->keys_grabbed)
return;
if (display->overlay_key_combo.keycode != 0)
meta_grab_key (display, screen->xroot,
display->overlay_key_combo.keysym,
display->overlay_key_combo.keycode,
display->overlay_key_combo.modifiers);
grab_keys (screen->display->key_bindings,
screen->display->n_key_bindings,
screen->display, screen->xroot,
FALSE);
screen->keys_grabbed = TRUE;
}
void
meta_screen_ungrab_keys (MetaScreen *screen)
{
if (screen->keys_grabbed)
{
ungrab_all_keys (screen->display, screen->xroot);
screen->keys_grabbed = FALSE;
}
}
void
meta_window_grab_keys (MetaWindow *window)
{
if (window->all_keys_grabbed)
return;
if (window->type == META_WINDOW_DOCK
|| window->override_redirect)
{
if (window->keys_grabbed)
ungrab_all_keys (window->display, window->xwindow);
window->keys_grabbed = FALSE;
return;
}
if (window->keys_grabbed)
{
if (window->frame && !window->grab_on_frame)
ungrab_all_keys (window->display, window->xwindow);
else if (window->frame == NULL &&
window->grab_on_frame)
; /* continue to regrab on client window */
else
return; /* already all good */
}
grab_keys (window->display->key_bindings,
window->display->n_key_bindings,
window->display,
window->frame ? window->frame->xwindow : window->xwindow,
TRUE);
window->keys_grabbed = TRUE;
window->grab_on_frame = window->frame != NULL;
}
void
meta_window_ungrab_keys (MetaWindow *window)
{
if (window->keys_grabbed)
{
if (window->grab_on_frame &&
window->frame != NULL)
ungrab_all_keys (window->display,
window->frame->xwindow);
else if (!window->grab_on_frame)
ungrab_all_keys (window->display,
window->xwindow);
window->keys_grabbed = FALSE;
}
}
#ifdef WITH_VERBOSE_MODE
static const char*
grab_status_to_string (int status)
{
switch (status)
{
case AlreadyGrabbed:
return "AlreadyGrabbed";
case GrabSuccess:
return "GrabSuccess";
case GrabNotViewable:
return "GrabNotViewable";
case GrabFrozen:
return "GrabFrozen";
case GrabInvalidTime:
return "GrabInvalidTime";
default:
return "(unknown)";
}
}
#endif /* WITH_VERBOSE_MODE */
static gboolean
grab_keyboard (MetaDisplay *display,
Window xwindow,
guint32 timestamp)
{
int result;
int grab_status;
/* Grab the keyboard, so we get key releases and all key
* presses
*/
meta_error_trap_push_with_return (display);
grab_status = XGrabKeyboard (display->xdisplay,
xwindow, True,
GrabModeAsync, GrabModeAsync,
timestamp);
if (grab_status != GrabSuccess)
{
meta_error_trap_pop_with_return (display, TRUE);
meta_topic (META_DEBUG_KEYBINDINGS,
"XGrabKeyboard() returned failure status %s time %u\n",
grab_status_to_string (grab_status),
timestamp);
return FALSE;
}
else
{
result = meta_error_trap_pop_with_return (display, TRUE);
if (result != Success)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"XGrabKeyboard() resulted in an error\n");
return FALSE;
}
}
meta_topic (META_DEBUG_KEYBINDINGS, "Grabbed all keys\n");
return TRUE;
}
static void
ungrab_keyboard (MetaDisplay *display, guint32 timestamp)
{
meta_error_trap_push (display);
meta_topic (META_DEBUG_KEYBINDINGS,
"Ungrabbing keyboard with timestamp %u\n",
timestamp);
XUngrabKeyboard (display->xdisplay, timestamp);
meta_error_trap_pop (display, FALSE);
}
gboolean
meta_screen_grab_all_keys (MetaScreen *screen, guint32 timestamp)
{
gboolean retval;
if (screen->all_keys_grabbed)
return FALSE;
if (screen->keys_grabbed)
meta_screen_ungrab_keys (screen);
meta_topic (META_DEBUG_KEYBINDINGS,
"Grabbing all keys on RootWindow\n");
retval = grab_keyboard (screen->display, screen->xroot, timestamp);
if (retval)
{
screen->all_keys_grabbed = TRUE;
g_object_notify (G_OBJECT (screen), "keyboard-grabbed");
}
else
meta_screen_grab_keys (screen);
return retval;
}
void
meta_screen_ungrab_all_keys (MetaScreen *screen, guint32 timestamp)
{
if (screen->all_keys_grabbed)
{
ungrab_keyboard (screen->display, timestamp);
screen->all_keys_grabbed = FALSE;
screen->keys_grabbed = FALSE;
/* Re-establish our standard bindings */
meta_screen_grab_keys (screen);
g_object_notify (G_OBJECT (screen), "keyboard-grabbed");
}
}
gboolean
meta_window_grab_all_keys (MetaWindow *window,
guint32 timestamp)
{
Window grabwindow;
gboolean retval;
if (window->all_keys_grabbed)
return FALSE;
if (window->keys_grabbed)
meta_window_ungrab_keys (window);
/* Make sure the window is focused, otherwise the grab
* won't do a lot of good.
*/
meta_topic (META_DEBUG_FOCUS,
"Focusing %s because we're grabbing all its keys\n",
window->desc);
meta_window_focus (window, timestamp);
grabwindow = window->frame ? window->frame->xwindow : window->xwindow;
meta_topic (META_DEBUG_KEYBINDINGS,
"Grabbing all keys on window %s\n", window->desc);
retval = grab_keyboard (window->display, grabwindow, timestamp);
if (retval)
{
window->keys_grabbed = FALSE;
window->all_keys_grabbed = TRUE;
window->grab_on_frame = window->frame != NULL;
}
return retval;
}
void
meta_window_ungrab_all_keys (MetaWindow *window, guint32 timestamp)
{
if (window->all_keys_grabbed)
{
ungrab_keyboard (window->display, timestamp);
window->grab_on_frame = FALSE;
window->all_keys_grabbed = FALSE;
window->keys_grabbed = FALSE;
/* Re-establish our standard bindings */
meta_window_grab_keys (window);
}
}
static gboolean
is_modifier (MetaDisplay *display,
unsigned int keycode)
{
int i;
int map_size;
gboolean retval = FALSE;
g_assert (display->modmap);
map_size = 8 * display->modmap->max_keypermod;
i = 0;
while (i < map_size)
{
if (keycode == display->modmap->modifiermap[i])
{
retval = TRUE;
break;
}
++i;
}
return retval;
}
/* Indexes:
* shift = 0
* lock = 1
* control = 2
* mod1 = 3
* mod2 = 4
* mod3 = 5
* mod4 = 6
* mod5 = 7
*/
static gboolean
is_specific_modifier (MetaDisplay *display,
unsigned int keycode,
unsigned int mask)
{
int i;
int end;
gboolean retval = FALSE;
int mod_index;
g_assert (display->modmap);
meta_topic (META_DEBUG_KEYBINDINGS,
"Checking whether code 0x%x is bound to modifier 0x%x\n",
keycode, mask);
mod_index = 0;
mask = mask >> 1;
while (mask != 0)
{
mod_index += 1;
mask = mask >> 1;
}
meta_topic (META_DEBUG_KEYBINDINGS,
"Modifier has index %d\n", mod_index);
end = (mod_index + 1) * display->modmap->max_keypermod;
i = mod_index * display->modmap->max_keypermod;
while (i < end)
{
if (keycode == display->modmap->modifiermap[i])
{
retval = TRUE;
break;
}
++i;
}
return retval;
}
static unsigned int
get_primary_modifier (MetaDisplay *display,
unsigned int entire_binding_mask)
{
/* The idea here is to see if the "main" modifier
* for Alt+Tab has been pressed/released. So if the binding
* is Alt+Shift+Tab then releasing Alt is the thing that
* ends the operation. It's pretty random how we order
* these.
*/
unsigned int masks[] = { Mod5Mask, Mod4Mask, Mod3Mask,
Mod2Mask, Mod1Mask, ControlMask,
ShiftMask, LockMask };
int i;
i = 0;
while (i < (int) G_N_ELEMENTS (masks))
{
if (entire_binding_mask & masks[i])
return masks[i];
++i;
}
return 0;
}
static gboolean
keycode_is_primary_modifier (MetaDisplay *display,
unsigned int keycode,
unsigned int entire_binding_mask)
{
unsigned int primary_modifier;
meta_topic (META_DEBUG_KEYBINDINGS,
"Checking whether code 0x%x is the primary modifier of mask 0x%x\n",
keycode, entire_binding_mask);
primary_modifier = get_primary_modifier (display, entire_binding_mask);
if (primary_modifier != 0)
return is_specific_modifier (display, keycode, primary_modifier);
else
return FALSE;
}
static gboolean
primary_modifier_still_pressed (MetaDisplay *display,
unsigned int entire_binding_mask)
{
unsigned int primary_modifier;
int x, y, root_x, root_y;
Window root, child;
guint mask;
MetaScreen *random_screen;
Window random_xwindow;
primary_modifier = get_primary_modifier (display, entire_binding_mask);
random_screen = display->screens->data;
random_xwindow = random_screen->no_focus_window;
XQueryPointer (display->xdisplay,
random_xwindow, /* some random window */
&root, &child,
&root_x, &root_y,
&x, &y,
&mask);
meta_topic (META_DEBUG_KEYBINDINGS,
"Primary modifier 0x%x full grab mask 0x%x current state 0x%x\n",
primary_modifier, entire_binding_mask, mask);
if ((mask & primary_modifier) == 0)
return FALSE;
else
return TRUE;
}
static gboolean
process_overlay_key (MetaDisplay *display,
MetaScreen *Screen,
XEvent *event,
KeySym keysym)
{
if (event->xkey.keycode != display->overlay_key_combo.keycode)
{
display->overlay_key_only_pressed = FALSE;
return FALSE;
}
if (event->xkey.type == KeyPress)
{
display->overlay_key_only_pressed = TRUE;
}
else if (event->xkey.type == KeyRelease && display->overlay_key_only_pressed)
{
display->overlay_key_only_pressed = FALSE;
meta_display_overlay_key_activate (display);
}
return TRUE;
}
static void
invoke_handler (MetaDisplay *display,
MetaScreen *screen,
MetaKeyHandler *handler,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding)
{
if (handler->func)
(* handler->func) (display, screen,
handler->flags & BINDING_PER_WINDOW ?
window : NULL,
event,
binding,
handler->user_data);
else
(* handler->default_func) (display, screen,
handler->flags & BINDING_PER_WINDOW ?
window: NULL,
event,
binding,
NULL);
}
static void
invoke_handler_by_name (MetaDisplay *display,
MetaScreen *screen,
const char *handler_name,
MetaWindow *window,
XEvent *event)
{
MetaKeyHandler *handler;
handler = find_handler (key_handlers, handler_name);
if (handler)
invoke_handler (display, screen, handler, window, event, NULL);
}
/* now called from only one place, may be worth merging */
static gboolean
process_event (MetaKeyBinding *bindings,
int n_bindings,
MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
KeySym keysym,
gboolean on_window)
{
int i;
/* we used to have release-based bindings but no longer. */
if (event->type == KeyRelease)
return FALSE;
/*
* TODO: This would be better done with a hash table;
* it doesn't suit to use O(n) for such a common operation.
*/
for (i=0; i<n_bindings; i++)
{
MetaKeyHandler *handler = bindings[i].handler;
if ((!on_window && handler->flags & BINDING_PER_WINDOW) ||
event->type != KeyPress ||
bindings[i].keycode != event->xkey.keycode ||
((event->xkey.state & 0xff & ~(display->ignored_modifier_mask)) !=
bindings[i].mask))
continue;
/*
* window must be non-NULL for on_window to be true,
* and so also window must be non-NULL if we get here and
* this is a BINDING_PER_WINDOW binding.
*/
meta_topic (META_DEBUG_KEYBINDINGS,
"Binding keycode 0x%x mask 0x%x matches event 0x%x state 0x%x\n",
bindings[i].keycode, bindings[i].mask,
event->xkey.keycode, event->xkey.state);
if (handler == NULL)
meta_bug ("Binding %s has no handler\n", bindings[i].name);
else
meta_topic (META_DEBUG_KEYBINDINGS,
"Running handler for %s\n",
bindings[i].name);
/* Global keybindings count as a let-the-terminal-lose-focus
* due to new window mapping until the user starts
* interacting with the terminal again.
*/
display->allow_terminal_deactivation = TRUE;
invoke_handler (display, screen, handler, window, event, &bindings[i]);
return TRUE;
}
meta_topic (META_DEBUG_KEYBINDINGS,
"No handler found for this event in this binding table\n");
return FALSE;
}
/* Handle a key event. May be called recursively: some key events cause
* grabs to be ended and then need to be processed again in their own
* right. This cannot cause infinite recursion because we never call
* ourselves when there wasn't a grab, and we always clear the grab
* first; the invariant is enforced using an assertion. See #112560.
*
* The return value is whether we handled the key event.
*
* FIXME: We need to prove there are no race conditions here.
* FIXME: Does it correctly handle alt-Tab being followed by another
* grabbing keypress without letting go of alt?
* FIXME: An iterative solution would probably be simpler to understand
* (and help us solve the other fixmes).
*/
gboolean
meta_display_process_key_event (MetaDisplay *display,
MetaWindow *window,
XEvent *event)
{
KeySym keysym;
gboolean keep_grab;
gboolean all_keys_grabbed;
gboolean handled;
const char *str;
MetaScreen *screen;
XAllowEvents (display->xdisplay,
all_bindings_disabled ? ReplayKeyboard : AsyncKeyboard,
event->xkey.time);
if (all_bindings_disabled)
return FALSE;
/* if key event was on root window, we have a shortcut */
screen = meta_display_screen_for_root (display, event->xkey.window);
/* else round-trip to server */
if (screen == NULL)
screen = meta_display_screen_for_xwindow (display,
event->xany.window);
if (screen == NULL)
return FALSE; /* event window is destroyed */
/* ignore key events on popup menus and such. */
if (window == NULL &&
meta_ui_window_is_widget (screen->ui, event->xany.window))
return FALSE;
/* window may be NULL */
keysym = XKeycodeToKeysym (display->xdisplay, event->xkey.keycode, 0);
str = XKeysymToString (keysym);
/* was topic */
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing key %s event, keysym: %s state: 0x%x window: %s\n",
event->type == KeyPress ? "press" : "release",
str ? str : "none", event->xkey.state,
window ? window->desc : "(no window)");
keep_grab = TRUE;
all_keys_grabbed = window ? window->all_keys_grabbed : screen->all_keys_grabbed;
if (all_keys_grabbed)
{
if (display->grab_op == META_GRAB_OP_NONE)
return TRUE;
/* If we get here we have a global grab, because
* we're in some special keyboard mode such as window move
* mode.
*/
if (window ? (window == display->grab_window) :
(screen == display->grab_screen))
{
switch (display->grab_op)
{
case META_GRAB_OP_MOVING:
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_RESIZING_E:
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for mouse-only move/resize\n");
g_assert (window != NULL);
keep_grab = process_mouse_move_resize_grab (display, screen,
window, event, keysym);
break;
case META_GRAB_OP_KEYBOARD_MOVING:
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for keyboard move\n");
g_assert (window != NULL);
keep_grab = process_keyboard_move_grab (display, screen,
window, event, keysym);
break;
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for keyboard resize\n");
g_assert (window != NULL);
keep_grab = process_keyboard_resize_grab (display, screen,
window, event, keysym);
break;
case META_GRAB_OP_KEYBOARD_TABBING_NORMAL:
case META_GRAB_OP_KEYBOARD_TABBING_DOCK:
case META_GRAB_OP_KEYBOARD_TABBING_GROUP:
case META_GRAB_OP_KEYBOARD_ESCAPING_NORMAL:
case META_GRAB_OP_KEYBOARD_ESCAPING_DOCK:
case META_GRAB_OP_KEYBOARD_ESCAPING_GROUP:
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for keyboard tabbing/cycling\n");
keep_grab = process_tab_grab (display, screen, event, keysym);
break;
case META_GRAB_OP_KEYBOARD_WORKSPACE_SWITCHING:
meta_topic (META_DEBUG_KEYBINDINGS,
"Processing event for keyboard workspace switching\n");
keep_grab = process_workspace_switch_grab (display, screen, event, keysym);
break;
default:
break;
}
}
if (!keep_grab)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Ending grab op %u on key event sym %s\n",
display->grab_op, XKeysymToString (keysym));
meta_display_end_grab_op (display, event->xkey.time);
}
return TRUE;
}
handled = process_overlay_key (display, screen, event, keysym);
if (handled)
return TRUE;
/* Do the normal keybindings */
return process_event (display->key_bindings,
display->n_key_bindings,
display, screen, window, event, keysym,
!all_keys_grabbed && window);
}
static gboolean
process_mouse_move_resize_grab (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
KeySym keysym)
{
/* don't care about releases, but eat them, don't end grab */
if (event->type == KeyRelease)
return TRUE;
if (keysym == XK_Escape)
{
/* End move or resize and restore to original state. If the
* window was a maximized window that had been "shaken loose" we
* need to remaximize it. In normal cases, we need to do a
* moveresize now to get the position back to the original.
*/
if (window->shaken_loose)
meta_window_maximize (window,
META_MAXIMIZE_HORIZONTAL |
META_MAXIMIZE_VERTICAL);
else
meta_window_move_resize (display->grab_window,
TRUE,
display->grab_initial_window_pos.x,
display->grab_initial_window_pos.y,
display->grab_initial_window_pos.width,
display->grab_initial_window_pos.height);
/* End grab */
return FALSE;
}
return TRUE;
}
static gboolean
process_keyboard_move_grab (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
KeySym keysym)
{
gboolean handled;
int x, y;
int incr;
gboolean smart_snap;
handled = FALSE;
/* don't care about releases, but eat them, don't end grab */
if (event->type == KeyRelease)
return TRUE;
/* don't end grab on modifier key presses */
if (is_modifier (display, event->xkey.keycode))
return TRUE;
meta_window_get_position (window, &x, &y);
smart_snap = (event->xkey.state & ShiftMask) != 0;
#define SMALL_INCREMENT 1
#define NORMAL_INCREMENT 10
if (smart_snap)
incr = 1;
else if (event->xkey.state & ControlMask)
incr = SMALL_INCREMENT;
else
incr = NORMAL_INCREMENT;
if (keysym == XK_Escape)
{
/* End move and restore to original state. If the window was a
* maximized window that had been "shaken loose" we need to
* remaximize it. In normal cases, we need to do a moveresize
* now to get the position back to the original.
*/
if (window->shaken_loose)
meta_window_maximize (window,
META_MAXIMIZE_HORIZONTAL |
META_MAXIMIZE_VERTICAL);
else
meta_window_move_resize (display->grab_window,
TRUE,
display->grab_initial_window_pos.x,
display->grab_initial_window_pos.y,
display->grab_initial_window_pos.width,
display->grab_initial_window_pos.height);
}
/* When moving by increments, we still snap to edges if the move
* to the edge is smaller than the increment. This is because
* Shift + arrow to snap is sort of a hidden feature. This way
* people using just arrows shouldn't get too frustrated.
*/
switch (keysym)
{
case XK_KP_Home:
case XK_KP_Prior:
case XK_Up:
case XK_KP_Up:
y -= incr;
handled = TRUE;
break;
case XK_KP_End:
case XK_KP_Next:
case XK_Down:
case XK_KP_Down:
y += incr;
handled = TRUE;
break;
}
switch (keysym)
{
case XK_KP_Home:
case XK_KP_End:
case XK_Left:
case XK_KP_Left:
x -= incr;
handled = TRUE;
break;
case XK_KP_Prior:
case XK_KP_Next:
case XK_Right:
case XK_KP_Right:
x += incr;
handled = TRUE;
break;
}
if (handled)
{
MetaRectangle old_rect;
meta_topic (META_DEBUG_KEYBINDINGS,
"Computed new window location %d,%d due to keypress\n",
x, y);
meta_window_get_client_root_coords (window, &old_rect);
meta_window_edge_resistance_for_move (window,
old_rect.x,
old_rect.y,
&x,
&y,
NULL,
smart_snap,
TRUE);
meta_window_move (window, TRUE, x, y);
meta_window_update_keyboard_move (window);
}
return handled;
}
static gboolean
process_keyboard_resize_grab_op_change (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
KeySym keysym)
{
gboolean handled;
handled = FALSE;
switch (display->grab_op)
{
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
switch (keysym)
{
case XK_Up:
case XK_KP_Up:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_N;
handled = TRUE;
break;
case XK_Down:
case XK_KP_Down:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_S;
handled = TRUE;
break;
case XK_Left:
case XK_KP_Left:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_W;
handled = TRUE;
break;
case XK_Right:
case XK_KP_Right:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_E;
handled = TRUE;
break;
}
break;
case META_GRAB_OP_KEYBOARD_RESIZING_S:
switch (keysym)
{
case XK_Left:
case XK_KP_Left:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_W;
handled = TRUE;
break;
case XK_Right:
case XK_KP_Right:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_E;
handled = TRUE;
break;
}
break;
case META_GRAB_OP_KEYBOARD_RESIZING_N:
switch (keysym)
{
case XK_Left:
case XK_KP_Left:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_W;
handled = TRUE;
break;
case XK_Right:
case XK_KP_Right:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_E;
handled = TRUE;
break;
}
break;
case META_GRAB_OP_KEYBOARD_RESIZING_W:
switch (keysym)
{
case XK_Up:
case XK_KP_Up:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_N;
handled = TRUE;
break;
case XK_Down:
case XK_KP_Down:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_S;
handled = TRUE;
break;
}
break;
case META_GRAB_OP_KEYBOARD_RESIZING_E:
switch (keysym)
{
case XK_Up:
case XK_KP_Up:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_N;
handled = TRUE;
break;
case XK_Down:
case XK_KP_Down:
display->grab_op = META_GRAB_OP_KEYBOARD_RESIZING_S;
handled = TRUE;
break;
}
break;
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
break;
default:
g_assert_not_reached ();
break;
}
if (handled)
{
meta_window_update_keyboard_resize (window, TRUE);
return TRUE;
}
return FALSE;
}
static gboolean
process_keyboard_resize_grab (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
KeySym keysym)
{
gboolean handled;
int height_inc;
int width_inc;
int width, height;
gboolean smart_snap;
int gravity;
handled = FALSE;
/* don't care about releases, but eat them, don't end grab */
if (event->type == KeyRelease)
return TRUE;
/* don't end grab on modifier key presses */
if (is_modifier (display, event->xkey.keycode))
return TRUE;
if (keysym == XK_Escape)
{
/* End resize and restore to original state. */
meta_window_move_resize (display->grab_window,
TRUE,
display->grab_initial_window_pos.x,
display->grab_initial_window_pos.y,
display->grab_initial_window_pos.width,
display->grab_initial_window_pos.height);
return FALSE;
}
if (process_keyboard_resize_grab_op_change (display, screen, window,
event, keysym))
return TRUE;
width = window->rect.width;
height = window->rect.height;
gravity = meta_resize_gravity_from_grab_op (display->grab_op);
smart_snap = (event->xkey.state & ShiftMask) != 0;
#define SMALL_INCREMENT 1
#define NORMAL_INCREMENT 10
if (smart_snap)
{
height_inc = 1;
width_inc = 1;
}
else if (event->xkey.state & ControlMask)
{
width_inc = SMALL_INCREMENT;
height_inc = SMALL_INCREMENT;
}
else
{
width_inc = NORMAL_INCREMENT;
height_inc = NORMAL_INCREMENT;
}
/* If this is a resize increment window, make the amount we resize
* the window by match that amount (well, unless snap resizing...)
*/
if (window->size_hints.width_inc > 1)
width_inc = window->size_hints.width_inc;
if (window->size_hints.height_inc > 1)
height_inc = window->size_hints.height_inc;
switch (keysym)
{
case XK_Up:
case XK_KP_Up:
switch (gravity)
{
case NorthGravity:
case NorthWestGravity:
case NorthEastGravity:
/* Move bottom edge up */
height -= height_inc;
break;
case SouthGravity:
case SouthWestGravity:
case SouthEastGravity:
/* Move top edge up */
height += height_inc;
break;
case EastGravity:
case WestGravity:
case CenterGravity:
g_assert_not_reached ();
break;
}
handled = TRUE;
break;
case XK_Down:
case XK_KP_Down:
switch (gravity)
{
case NorthGravity:
case NorthWestGravity:
case NorthEastGravity:
/* Move bottom edge down */
height += height_inc;
break;
case SouthGravity:
case SouthWestGravity:
case SouthEastGravity:
/* Move top edge down */
height -= height_inc;
break;
case EastGravity:
case WestGravity:
case CenterGravity:
g_assert_not_reached ();
break;
}
handled = TRUE;
break;
case XK_Left:
case XK_KP_Left:
switch (gravity)
{
case EastGravity:
case SouthEastGravity:
case NorthEastGravity:
/* Move left edge left */
width += width_inc;
break;
case WestGravity:
case SouthWestGravity:
case NorthWestGravity:
/* Move right edge left */
width -= width_inc;
break;
case NorthGravity:
case SouthGravity:
case CenterGravity:
g_assert_not_reached ();
break;
}
handled = TRUE;
break;
case XK_Right:
case XK_KP_Right:
switch (gravity)
{
case EastGravity:
case SouthEastGravity:
case NorthEastGravity:
/* Move left edge right */
width -= width_inc;
break;
case WestGravity:
case SouthWestGravity:
case NorthWestGravity:
/* Move right edge right */
width += width_inc;
break;
case NorthGravity:
case SouthGravity:
case CenterGravity:
g_assert_not_reached ();
break;
}
handled = TRUE;
break;
default:
break;
}
/* fixup hack (just paranoia, not sure it's required) */
if (height < 1)
height = 1;
if (width < 1)
width = 1;
if (handled)
{
MetaRectangle old_rect;
meta_topic (META_DEBUG_KEYBINDINGS,
"Computed new window size due to keypress: "
"%dx%d, gravity %s\n",
width, height, meta_gravity_to_string (gravity));
old_rect = window->rect; /* Don't actually care about x,y */
/* Do any edge resistance/snapping */
meta_window_edge_resistance_for_resize (window,
old_rect.width,
old_rect.height,
&width,
&height,
gravity,
NULL,
smart_snap,
TRUE);
/* We don't need to update unless the specified width and height
* are actually different from what we had before.
*/
if (window->rect.width != width || window->rect.height != height)
meta_window_resize_with_gravity (window,
TRUE,
width,
height,
gravity);
meta_window_update_keyboard_resize (window, FALSE);
}
return handled;
}
static gboolean
end_keyboard_grab (MetaDisplay *display,
unsigned int keycode)
{
#ifdef HAVE_XKB
if (display->xkb_base_event_type > 0)
{
unsigned int primary_modifier;
XkbStateRec state;
primary_modifier = get_primary_modifier (display, display->grab_mask);
XkbGetState (display->xdisplay, XkbUseCoreKbd, &state);
if (!(primary_modifier & state.mods))
return TRUE;
}
else
#endif
{
if (keycode_is_primary_modifier (display, keycode, display->grab_mask))
return TRUE;
}
return FALSE;
}
static gboolean
process_tab_grab (MetaDisplay *display,
MetaScreen *screen,
XEvent *event,
KeySym keysym)
{
MetaKeyBinding *binding;
MetaKeyBindingAction action;
gboolean popup_not_showing;
gboolean backward;
gboolean key_used;
MetaWindow *prev_window;
if (screen != display->grab_screen)
return FALSE;
binding = display_get_keybinding (display,
keysym,
event->xkey.keycode,
display->grab_mask);
if (binding)
action = meta_prefs_get_keybinding_action (binding->name);
else
action = META_KEYBINDING_ACTION_NONE;
/*
* There are currently two different ways of customizing Alt-Tab, you can either
* provide a replacement AltTabHandler object, or you can hook into the keybindings
* meta_keybindings_set_custom_handler() and call meta_display_begin_grab_op()
* yourself with one of the "tabbing" grab ops META_GRAB_OP_KEYBOARD_TABBING_NORMAL,
* etc. See meta_display_process_key_event() for the complete list. If screen->tab_handler
* is NULL, the latter mechanism is being used. We skip most of our normal
* processing and just make sure that the right custom handlers get called.
*/
if (!screen->tab_handler)
{
if (event->type == KeyRelease)
{
if (end_keyboard_grab (display, event->xkey.keycode))
{
invoke_handler_by_name (display, screen, "tab_popup_select", NULL, event);
/* We return FALSE to end the grab; if the handler ended the grab itself
* that will be a noop. If the handler didn't end the grab, then it's a
* safety measure to prevent a stuck grab.
*/
return FALSE;
}
return TRUE;
}
switch (action)
{
case META_KEYBINDING_ACTION_CYCLE_PANELS:
case META_KEYBINDING_ACTION_CYCLE_WINDOWS:
case META_KEYBINDING_ACTION_CYCLE_PANELS_BACKWARD:
case META_KEYBINDING_ACTION_CYCLE_WINDOWS_BACKWARD:
case META_KEYBINDING_ACTION_SWITCH_PANELS:
case META_KEYBINDING_ACTION_SWITCH_WINDOWS:
case META_KEYBINDING_ACTION_SWITCH_PANELS_BACKWARD:
case META_KEYBINDING_ACTION_SWITCH_WINDOWS_BACKWARD:
case META_KEYBINDING_ACTION_CYCLE_GROUP:
case META_KEYBINDING_ACTION_CYCLE_GROUP_BACKWARD:
case META_KEYBINDING_ACTION_SWITCH_GROUP:
case META_KEYBINDING_ACTION_SWITCH_GROUP_BACKWARD:
/* These are the tab-popup bindings. If a custom Alt-Tab implementation
* is in effect, we expect it to want to handle all of these as a group
*
* If there are some of them that the custom implementation didn't
* handle, we treat them as "unbound" for the duration - running the
* normal handlers could get us into trouble.
*/
if (binding->handler &&
binding->handler->func &&
binding->handler->func != binding->handler->default_func)
{
invoke_handler (display, screen, binding->handler, NULL, event, binding);
return TRUE;
}
break;
default:
break;
}
/* Some unhandled key press */
invoke_handler_by_name (display, screen, "tab_popup_cancel", NULL, event);
return FALSE;
}
if (event->type == KeyRelease &&
end_keyboard_grab (display, event->xkey.keycode))
{
/* We're done, move to the new window. */
MetaWindow *target_window;
target_window = meta_screen_tab_popup_get_selected (screen);
meta_topic (META_DEBUG_KEYBINDINGS,
"Ending tab operation, primary modifier released\n");
if (target_window)
{
target_window->tab_unminimized = FALSE;
meta_topic (META_DEBUG_KEYBINDINGS,
"Activating target window\n");
meta_topic (META_DEBUG_FOCUS, "Activating %s due to tab popup "
"selection and turning mouse_mode off\n",
target_window->desc);
display->mouse_mode = FALSE;
meta_window_activate (target_window, event->xkey.time);
meta_topic (META_DEBUG_KEYBINDINGS,
"Ending grab early so we can focus the target window\n");
meta_display_end_grab_op (display, event->xkey.time);
return TRUE; /* we already ended the grab */
}
return FALSE; /* end grab */
}
/* don't care about other releases, but eat them, don't end grab */
if (event->type == KeyRelease)
return TRUE;
/* don't end grab on modifier key presses */
if (is_modifier (display, event->xkey.keycode))
return TRUE;
prev_window = meta_screen_tab_popup_get_selected (screen);
/* Cancel when alt-Escape is pressed during using alt-Tab, and vice
* versa.
*/
switch (action)
{
case META_KEYBINDING_ACTION_CYCLE_PANELS:
case META_KEYBINDING_ACTION_CYCLE_WINDOWS:
case META_KEYBINDING_ACTION_CYCLE_PANELS_BACKWARD:
case META_KEYBINDING_ACTION_CYCLE_WINDOWS_BACKWARD:
/* CYCLE_* are traditionally Escape-based actions,
* and should cancel traditionally Tab-based ones.
*/
switch (display->grab_op)
{
case META_GRAB_OP_KEYBOARD_ESCAPING_NORMAL:
case META_GRAB_OP_KEYBOARD_ESCAPING_DOCK:
/* carry on */
break;
default:
return FALSE;
}
break;
case META_KEYBINDING_ACTION_SWITCH_PANELS:
case META_KEYBINDING_ACTION_SWITCH_WINDOWS:
case META_KEYBINDING_ACTION_SWITCH_PANELS_BACKWARD:
case META_KEYBINDING_ACTION_SWITCH_WINDOWS_BACKWARD:
/* SWITCH_* are traditionally Tab-based actions,
* and should cancel traditionally Escape-based ones.
*/
switch (display->grab_op)
{
case META_GRAB_OP_KEYBOARD_TABBING_NORMAL:
case META_GRAB_OP_KEYBOARD_TABBING_DOCK:
/* carry on */
break;
default:
/* Also, we must re-lower and re-minimize whatever window
* we'd previously raised and unminimized.
*/
meta_stack_set_positions (screen->stack,
screen->display->grab_old_window_stacking);
if (prev_window && prev_window->tab_unminimized)
{
meta_window_minimize (prev_window);
prev_window->tab_unminimized = FALSE;
}
return FALSE;
}
break;
case META_KEYBINDING_ACTION_CYCLE_GROUP:
case META_KEYBINDING_ACTION_CYCLE_GROUP_BACKWARD:
case META_KEYBINDING_ACTION_SWITCH_GROUP:
case META_KEYBINDING_ACTION_SWITCH_GROUP_BACKWARD:
switch (display->grab_op)
{
case META_GRAB_OP_KEYBOARD_ESCAPING_GROUP:
case META_GRAB_OP_KEYBOARD_TABBING_GROUP:
/* carry on */
break;
default:
return FALSE;
}
break;
default:
break;
}
/* !! TO HERE !!
* alt-f6 during alt-{Tab,Escape} does not end the grab
* but does change the grab op (and redraws the window,
* of course).
* See _{SWITCH,CYCLE}_GROUP.@@@
*/
popup_not_showing = FALSE;
key_used = FALSE;
backward = FALSE;
switch (action)
{
case META_KEYBINDING_ACTION_CYCLE_PANELS:
case META_KEYBINDING_ACTION_CYCLE_WINDOWS:
case META_KEYBINDING_ACTION_CYCLE_GROUP:
popup_not_showing = TRUE;
key_used = TRUE;
break;
case META_KEYBINDING_ACTION_CYCLE_PANELS_BACKWARD:
case META_KEYBINDING_ACTION_CYCLE_WINDOWS_BACKWARD:
case META_KEYBINDING_ACTION_CYCLE_GROUP_BACKWARD:
popup_not_showing = TRUE;
key_used = TRUE;
backward = TRUE;
break;
case META_KEYBINDING_ACTION_SWITCH_PANELS:
case META_KEYBINDING_ACTION_SWITCH_WINDOWS:
case META_KEYBINDING_ACTION_SWITCH_GROUP:
key_used = TRUE;
break;
case META_KEYBINDING_ACTION_SWITCH_PANELS_BACKWARD:
case META_KEYBINDING_ACTION_SWITCH_WINDOWS_BACKWARD:
case META_KEYBINDING_ACTION_SWITCH_GROUP_BACKWARD:
key_used = TRUE;
backward = TRUE;
break;
default:
break;
}
if (key_used)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Key pressed, moving tab focus in popup\n");
if (event->xkey.state & ShiftMask)
backward = !backward;
if (backward)
meta_screen_tab_popup_backward (screen);
else
meta_screen_tab_popup_forward (screen);
if (popup_not_showing)
{
/* We can't actually change window focus, due to the grab.
* but raise the window.
*/
MetaWindow *target_window;
meta_stack_set_positions (screen->stack,
display->grab_old_window_stacking);
target_window = meta_screen_tab_popup_get_selected (screen);
if (prev_window && prev_window->tab_unminimized)
{
prev_window->tab_unminimized = FALSE;
meta_window_minimize (prev_window);
}
if (target_window)
{
meta_window_raise (target_window);
target_window->tab_unminimized = target_window->minimized;
meta_window_unminimize (target_window);
}
}
}
else
{
/* end grab */
meta_topic (META_DEBUG_KEYBINDINGS,
"Ending tabbing/cycling, uninteresting key pressed\n");
meta_topic (META_DEBUG_KEYBINDINGS,
"Syncing to old stack positions.\n");
meta_stack_set_positions (screen->stack,
screen->display->grab_old_window_stacking);
if (prev_window && prev_window->tab_unminimized)
{
meta_window_minimize (prev_window);
prev_window->tab_unminimized = FALSE;
}
}
return key_used;
}
static void
handle_switch_to_workspace (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *event_window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
gint which = binding->handler->data;
MetaWorkspace *workspace;
if (which < 0)
{
/* Negative workspace numbers are directions with respect to the
* current workspace. While we could insta-switch here by setting
* workspace to the result of meta_workspace_get_neighbor(), when
* people request a workspace switch to the left or right via
* the keyboard, they actually want a tab popup. So we should
* go there instead.
*
* Note that we're the only caller of that function, so perhaps
* we should merge with it.
*/
handle_workspace_switch (display, screen, event_window, event, binding,
dummy);
return;
}
workspace = meta_screen_get_workspace_by_index (screen, which);
if (workspace)
{
meta_workspace_activate (workspace, event->xkey.time);
}
else
{
/* We could offer to create it I suppose */
}
}
static void
error_on_command (int command_index,
const char *command,
const char *message,
int screen_number,
guint32 timestamp)
{
if (command_index < 0)
meta_warning ("Error on terminal command \"%s\": %s\n", command, message);
else
meta_warning ("Error on command %d \"%s\": %s\n",
command_index, command, message);
/*
mutter-dialog said:
FIXME offer to change the value of the command's gconf key
*/
if (command && strcmp(command, "")!=0)
{
char *text = g_strdup_printf (
/* Displayed when a keybinding which is
* supposed to launch a program fails.
*/
_("There was an error running "
"<tt>%s</tt>:\n\n%s"),
command,
message);
meta_show_dialog ("--error",
text,
NULL,
screen_number,
NULL, NULL, 0,
NULL, NULL);
g_free (text);
}
else
{
meta_show_dialog ("--error",
message,
NULL,
screen_number,
NULL, NULL, 0,
NULL, NULL);
}
}
static void
set_display_setup_func (void *data)
{
const char *screen_name = data;
char *full;
full = g_strdup_printf ("DISPLAY=%s", screen_name);
putenv (full);
/* do not free full, because putenv is lame */
}
static gboolean
meta_spawn_command_line_async_on_screen (const gchar *command_line,
MetaScreen *screen,
GError **error)
{
gboolean retval;
gchar **argv = NULL;
g_return_val_if_fail (command_line != NULL, FALSE);
if (!g_shell_parse_argv (command_line,
NULL, &argv,
error))
return FALSE;
retval = g_spawn_async (NULL,
argv,
NULL,
G_SPAWN_SEARCH_PATH,
set_display_setup_func,
screen->screen_name,
NULL,
error);
g_strfreev (argv);
return retval;
}
static void
handle_run_command (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
gint which = binding->handler->data;
const char *command;
GError *err;
command = meta_prefs_get_command (which);
if (command == NULL)
{
char *s;
meta_topic (META_DEBUG_KEYBINDINGS,
"No command %d to run in response to keybinding press\n",
which);
s = g_strdup_printf (_("No command %d has been defined.\n"),
which + 1);
error_on_command (which, NULL, s, screen->number, event->xkey.time);
g_free (s);
return;
}
err = NULL;
if (!meta_spawn_command_line_async_on_screen (command, screen, &err))
{
error_on_command (which, command, err->message, screen->number, event->xkey.time);
g_error_free (err);
}
}
static void
handle_maximize_vertically (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->has_resize_func)
{
if (window->maximized_vertically)
meta_window_unmaximize (window, META_MAXIMIZE_VERTICAL);
else
meta_window_maximize (window, META_MAXIMIZE_VERTICAL);
}
}
static void
handle_maximize_horizontally (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->has_resize_func)
{
if (window->maximized_horizontally)
meta_window_unmaximize (window, META_MAXIMIZE_HORIZONTAL);
else
meta_window_maximize (window, META_MAXIMIZE_HORIZONTAL);
}
}
/* Move a window to a corner; to_bottom/to_right are FALSE for the
* top or left edge, or TRUE for the bottom/right edge. xchange/ychange
* are FALSE if that dimension is not to be changed, TRUE otherwise.
* Together they describe which of the four corners, or four sides,
* is desired.
*/
static void
handle_move_to_corner_backend (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
gboolean xchange,
gboolean ychange,
gboolean to_right,
gboolean to_bottom,
gpointer dummy)
{
MetaRectangle work_area;
MetaRectangle outer;
int orig_x, orig_y;
int new_x, new_y;
int frame_width, frame_height;
meta_window_get_work_area_all_xineramas (window, &work_area);
meta_window_get_outer_rect (window, &outer);
meta_window_get_position (window, &orig_x, &orig_y);
frame_width = (window->frame ? window->frame->child_x : 0);
frame_height = (window->frame ? window->frame->child_y : 0);
if (xchange) {
new_x = work_area.x + (to_right ?
(work_area.width + frame_width) - outer.width :
0);
} else {
new_x = orig_x;
}
if (ychange) {
new_y = work_area.y + (to_bottom ?
(work_area.height + frame_height) - outer.height :
0);
} else {
new_y = orig_y;
}
meta_window_move_resize (window,
FALSE,
new_x,
new_y,
window->rect.width,
window->rect.height);
}
static void
handle_move_to_corner_nw (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
handle_move_to_corner_backend (display, screen, window, TRUE, TRUE, FALSE, FALSE, dummy);
}
static void
handle_move_to_corner_ne (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
handle_move_to_corner_backend (display, screen, window, TRUE, TRUE, TRUE, FALSE, dummy);
}
static void
handle_move_to_corner_sw (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
handle_move_to_corner_backend (display, screen, window, TRUE, TRUE, FALSE, TRUE, dummy);
}
static void
handle_move_to_corner_se (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
handle_move_to_corner_backend (display, screen, window, TRUE, TRUE, TRUE, TRUE, dummy);
}
static void
handle_move_to_side_n (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
handle_move_to_corner_backend (display, screen, window, FALSE, TRUE, FALSE, FALSE, dummy);
}
static void
handle_move_to_side_s (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
handle_move_to_corner_backend (display, screen, window, FALSE, TRUE, FALSE, TRUE, dummy);
}
static void
handle_move_to_side_e (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
handle_move_to_corner_backend (display, screen, window, TRUE, FALSE, TRUE, FALSE, dummy);
}
static void
handle_move_to_side_w (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
handle_move_to_corner_backend (display, screen, window, TRUE, FALSE, FALSE, FALSE, dummy);
}
static void
handle_move_to_center (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
MetaRectangle work_area;
MetaRectangle outer;
int orig_x, orig_y;
int frame_width, frame_height;
meta_window_get_work_area_all_xineramas (window, &work_area);
meta_window_get_outer_rect (window, &outer);
meta_window_get_position (window, &orig_x, &orig_y);
frame_width = (window->frame ? window->frame->child_x : 0);
frame_height = (window->frame ? window->frame->child_y : 0);
meta_window_move_resize (window,
TRUE,
work_area.x + (work_area.width +frame_width -outer.width )/2,
work_area.y + (work_area.height+frame_height-outer.height)/2,
window->rect.width,
window->rect.height);
}
static gboolean
process_workspace_switch_grab (MetaDisplay *display,
MetaScreen *screen,
XEvent *event,
KeySym keysym)
{
MetaWorkspace *workspace;
if (screen != display->grab_screen || !screen->ws_popup)
return FALSE;
if (event->type == KeyRelease &&
end_keyboard_grab (display, event->xkey.keycode))
{
/* We're done, move to the new workspace. */
MetaWorkspace *target_workspace;
target_workspace = meta_screen_workspace_popup_get_selected (screen);
meta_topic (META_DEBUG_KEYBINDINGS,
"Ending workspace tab operation, primary modifier released\n");
if (target_workspace == screen->active_workspace)
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Ending grab so we can focus on the target workspace\n");
meta_display_end_grab_op (display, event->xkey.time);
meta_topic (META_DEBUG_KEYBINDINGS,
"Focusing default window on target workspace\n");
meta_workspace_focus_default_window (target_workspace,
NULL,
event->xkey.time);
return TRUE; /* we already ended the grab */
}
/* Workspace switching should have already occurred on KeyPress */
meta_warning ("target_workspace != active_workspace. Some other event must have occurred.\n");
return FALSE; /* end grab */
}
/* don't care about other releases, but eat them, don't end grab */
if (event->type == KeyRelease)
return TRUE;
/* don't end grab on modifier key presses */
if (is_modifier (display, event->xkey.keycode))
return TRUE;
/* select the next workspace in the popup */
workspace = meta_screen_workspace_popup_get_selected (screen);
if (workspace)
{
MetaWorkspace *target_workspace;
MetaKeyBindingAction action;
action = display_get_keybinding_action (display,
keysym,
event->xkey.keycode,
display->grab_mask);
switch (action)
{
case META_KEYBINDING_ACTION_WORKSPACE_UP:
target_workspace = meta_workspace_get_neighbor (workspace,
META_MOTION_UP);
break;
case META_KEYBINDING_ACTION_WORKSPACE_DOWN:
target_workspace = meta_workspace_get_neighbor (workspace,
META_MOTION_DOWN);
break;
case META_KEYBINDING_ACTION_WORKSPACE_LEFT:
target_workspace = meta_workspace_get_neighbor (workspace,
META_MOTION_LEFT);
break;
case META_KEYBINDING_ACTION_WORKSPACE_RIGHT:
target_workspace = meta_workspace_get_neighbor (workspace,
META_MOTION_RIGHT);
break;
default:
target_workspace = NULL;
break;
}
if (target_workspace)
{
meta_screen_workspace_popup_select (screen, target_workspace);
meta_topic (META_DEBUG_KEYBINDINGS,
"Tab key pressed, moving tab focus in popup\n");
meta_topic (META_DEBUG_KEYBINDINGS,
"Activating target workspace\n");
meta_workspace_activate (target_workspace, event->xkey.time);
return TRUE; /* we already ended the grab */
}
}
/* end grab */
meta_topic (META_DEBUG_KEYBINDINGS,
"Ending workspace tabbing & focusing default window; uninteresting key pressed\n");
workspace = meta_screen_workspace_popup_get_selected (screen);
meta_workspace_focus_default_window (workspace, NULL, event->xkey.time);
return FALSE;
}
static void
handle_show_desktop (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (screen->active_workspace->showing_desktop)
{
meta_screen_unshow_desktop (screen);
meta_workspace_focus_default_window (screen->active_workspace,
NULL,
event->xkey.time);
}
else
meta_screen_show_desktop (screen, event->xkey.time);
}
static void
handle_panel (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
MetaKeyBindingAction action = binding->handler->data;
Atom action_atom;
XClientMessageEvent ev;
action_atom = None;
switch (action)
{
/* FIXME: The numbers are wrong */
case META_KEYBINDING_ACTION_PANEL_MAIN_MENU:
action_atom = display->atom__GNOME_PANEL_ACTION_MAIN_MENU;
break;
case META_KEYBINDING_ACTION_PANEL_RUN_DIALOG:
action_atom = display->atom__GNOME_PANEL_ACTION_RUN_DIALOG;
break;
default:
return;
}
ev.type = ClientMessage;
ev.window = screen->xroot;
ev.message_type = display->atom__GNOME_PANEL_ACTION;
ev.format = 32;
ev.data.l[0] = action_atom;
ev.data.l[1] = event->xkey.time;
meta_topic (META_DEBUG_KEYBINDINGS,
"Sending panel message with timestamp %lu, and turning mouse_mode "
"off due to keybinding press\n", event->xkey.time);
display->mouse_mode = FALSE;
meta_error_trap_push (display);
/* Release the grab for the panel before sending the event */
XUngrabKeyboard (display->xdisplay, event->xkey.time);
XSendEvent (display->xdisplay,
screen->xroot,
False,
StructureNotifyMask,
(XEvent*) &ev);
meta_error_trap_pop (display, FALSE);
}
static void
handle_toggle_recording (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
g_signal_emit_by_name (screen, "toggle-recording");
}
static void
handle_activate_window_menu (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *event_window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (display->focus_window)
{
int x, y;
meta_window_get_position (display->focus_window,
&x, &y);
if (meta_ui_get_direction() == META_UI_DIRECTION_RTL)
x += display->focus_window->rect.width;
meta_window_show_menu (display->focus_window,
x, y,
0,
event->xkey.time);
}
}
static MetaGrabOp
tab_op_from_tab_type (MetaTabList type)
{
switch (type)
{
case META_TAB_LIST_NORMAL:
return META_GRAB_OP_KEYBOARD_TABBING_NORMAL;
case META_TAB_LIST_DOCKS:
return META_GRAB_OP_KEYBOARD_TABBING_DOCK;
case META_TAB_LIST_GROUP:
return META_GRAB_OP_KEYBOARD_TABBING_GROUP;
}
g_assert_not_reached ();
return 0;
}
static MetaGrabOp
cycle_op_from_tab_type (MetaTabList type)
{
switch (type)
{
case META_TAB_LIST_NORMAL:
return META_GRAB_OP_KEYBOARD_ESCAPING_NORMAL;
case META_TAB_LIST_DOCKS:
return META_GRAB_OP_KEYBOARD_ESCAPING_DOCK;
case META_TAB_LIST_GROUP:
return META_GRAB_OP_KEYBOARD_ESCAPING_GROUP;
}
g_assert_not_reached ();
return 0;
}
static void
do_choose_window (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *event_window,
XEvent *event,
MetaKeyBinding *binding,
gboolean backward,
gboolean show_popup)
{
MetaTabList type = binding->handler->data;
MetaWindow *initial_selection;
meta_topic (META_DEBUG_KEYBINDINGS,
"Tab list = %u show_popup = %d\n", type, show_popup);
/* reverse direction if shift is down */
if (event->xkey.state & ShiftMask)
backward = !backward;
initial_selection = meta_display_get_tab_next (display,
type,
screen,
screen->active_workspace,
NULL,
backward);
/* Note that focus_window may not be in the tab chain, but it's OK */
if (initial_selection == NULL)
initial_selection = meta_display_get_tab_current (display,
type, screen,
screen->active_workspace);
meta_topic (META_DEBUG_KEYBINDINGS,
"Initially selecting window %s\n",
initial_selection ? initial_selection->desc : "(none)");
if (initial_selection == NULL)
return;
if (binding->mask == 0)
{
/* If no modifiers, we can't do the "hold down modifier to keep
* moving" thing, so we just instaswitch by one window.
*/
meta_topic (META_DEBUG_FOCUS,
"Activating %s and turning off mouse_mode due to "
"switch/cycle windows with no modifiers\n",
initial_selection->desc);
display->mouse_mode = FALSE;
meta_window_activate (initial_selection, event->xkey.time);
return;
}
if (meta_prefs_get_no_tab_popup ())
{
/* FIXME? Shouldn't this be merged with the previous case? */
return;
}
if (!meta_display_begin_grab_op (display,
screen,
NULL,
show_popup ?
tab_op_from_tab_type (type) :
cycle_op_from_tab_type (type),
FALSE,
FALSE,
0,
binding->mask,
event->xkey.time,
0, 0))
return;
if (!primary_modifier_still_pressed (display, binding->mask))
{
/* This handles a race where modifier might be released before
* we establish the grab. must end grab prior to trying to focus
* a window.
*/
meta_topic (META_DEBUG_FOCUS,
"Ending grab, activating %s, and turning off "
"mouse_mode due to switch/cycle windows where "
"modifier was released prior to grab\n",
initial_selection->desc);
meta_display_end_grab_op (display, event->xkey.time);
display->mouse_mode = FALSE;
meta_window_activate (initial_selection, event->xkey.time);
return;
}
meta_screen_tab_popup_create (screen, type,
show_popup ? META_TAB_SHOW_ICON :
META_TAB_SHOW_INSTANTLY,
initial_selection);
if (!show_popup)
{
meta_window_raise (initial_selection);
initial_selection->tab_unminimized =
initial_selection->minimized;
meta_window_unminimize (initial_selection);
}
}
static void
handle_switch (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *event_window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
gint backwards = binding->handler->flags & BINDING_IS_REVERSED;
do_choose_window (display, screen, event_window, event, binding,
backwards, TRUE);
}
static void
handle_cycle (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *event_window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
gint backwards = binding->handler->flags & BINDING_IS_REVERSED;
do_choose_window (display, screen, event_window, event, binding,
backwards, FALSE);
}
static void
handle_tab_popup_select (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
/* Stub for custom handlers; no default implementation */
}
static void
handle_tab_popup_cancel (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
/* Stub for custom handlers; no default implementation */
}
static void
handle_toggle_fullscreen (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->fullscreen)
meta_window_unmake_fullscreen (window);
else if (window->has_fullscreen_func)
meta_window_make_fullscreen (window);
}
static void
handle_toggle_above (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->wm_state_above)
meta_window_unmake_above (window);
else
meta_window_make_above (window);
}
static void
handle_toggle_maximized (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (META_WINDOW_MAXIMIZED (window))
meta_window_unmaximize (window,
META_MAXIMIZE_HORIZONTAL |
META_MAXIMIZE_VERTICAL);
else if (window->has_maximize_func)
meta_window_maximize (window,
META_MAXIMIZE_HORIZONTAL |
META_MAXIMIZE_VERTICAL);
}
static void
handle_maximize (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->has_maximize_func)
meta_window_maximize (window,
META_MAXIMIZE_HORIZONTAL |
META_MAXIMIZE_VERTICAL);
}
static void
handle_unmaximize (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->maximized_vertically || window->maximized_horizontally)
meta_window_unmaximize (window,
META_MAXIMIZE_HORIZONTAL |
META_MAXIMIZE_VERTICAL);
}
static void
handle_toggle_shaded (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->shaded)
meta_window_unshade (window, event->xkey.time);
else if (window->has_shade_func)
meta_window_shade (window, event->xkey.time);
}
static void
handle_close (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->has_close_func)
meta_window_delete (window, event->xkey.time);
}
static void
handle_minimize (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->has_minimize_func)
meta_window_minimize (window);
}
static void
handle_begin_move (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->has_move_func)
{
meta_window_begin_grab_op (window,
META_GRAB_OP_KEYBOARD_MOVING,
FALSE,
event->xkey.time);
}
}
static void
handle_begin_resize (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->has_resize_func)
{
meta_window_begin_grab_op (window,
META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN,
FALSE,
event->xkey.time);
}
}
static void
handle_toggle_on_all_workspaces (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
if (window->on_all_workspaces)
meta_window_unstick (window);
else
meta_window_stick (window);
}
static void
handle_move_to_workspace (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
gint which = binding->handler->data;
gboolean flip = (which < 0);
MetaWorkspace *workspace;
/* If which is zero or positive, it's a workspace number, and the window
* should move to the workspace with that number.
*
* However, if it's negative, it's a direction with respect to the current
* position; it's expressed as a member of the MetaMotionDirection enum,
* all of whose members are negative. Such a change is called a flip.
*/
if (window->always_sticky)
return;
workspace = NULL;
if (flip)
{
workspace = meta_workspace_get_neighbor (screen->active_workspace,
which);
}
else
{
workspace = meta_screen_get_workspace_by_index (screen, which);
}
if (workspace)
{
/* Activate second, so the window is never unmapped */
meta_window_change_workspace (window, workspace);
if (flip)
{
meta_topic (META_DEBUG_FOCUS,
"Resetting mouse_mode to FALSE due to "
"handle_move_to_workspace() call with flip set.\n");
workspace->screen->display->mouse_mode = FALSE;
meta_workspace_activate_with_focus (workspace,
window,
event->xkey.time);
}
}
else
{
/* We could offer to create it I suppose */
}
}
static void
handle_raise_or_lower (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
/* Get window at pointer */
MetaWindow *above = NULL;
/* Check if top */
if (meta_stack_get_top (window->screen->stack) == window)
{
meta_window_lower (window);
return;
}
/* else check if windows in same layer are intersecting it */
above = meta_stack_get_above (window->screen->stack, window, TRUE);
while (above)
{
MetaRectangle tmp, win_rect, above_rect;
if (above->mapped)
{
meta_window_get_outer_rect (window, &win_rect);
meta_window_get_outer_rect (above, &above_rect);
/* Check if obscured */
if (meta_rectangle_intersect (&win_rect, &above_rect, &tmp))
{
meta_window_raise (window);
return;
}
}
above = meta_stack_get_above (window->screen->stack, above, TRUE);
}
/* window is not obscured */
meta_window_lower (window);
}
static void
handle_raise (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
meta_window_raise (window);
}
static void
handle_lower (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
meta_window_lower (window);
}
static void
handle_workspace_switch (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
gint motion = binding->handler->data;
unsigned int grab_mask;
MetaWorkspace *next;
gboolean grabbed_before_release;
g_assert (motion < 0);
meta_topic (META_DEBUG_KEYBINDINGS,
"Starting tab between workspaces, showing popup\n");
/* FIXME should we use binding->mask ? */
grab_mask = event->xkey.state & ~(display->ignored_modifier_mask);
if (!meta_display_begin_grab_op (display,
screen,
NULL,
META_GRAB_OP_KEYBOARD_WORKSPACE_SWITCHING,
FALSE,
FALSE,
0,
grab_mask,
event->xkey.time,
0, 0))
return;
next = meta_workspace_get_neighbor (screen->active_workspace, motion);
g_assert (next);
grabbed_before_release = primary_modifier_still_pressed (display, grab_mask);
meta_topic (META_DEBUG_KEYBINDINGS, "Activating target workspace\n");
if (!grabbed_before_release)
{
/* end the grab right away, modifier possibly released
* before we could establish the grab and receive the
* release event. Must end grab before we can switch
* spaces.
*/
meta_display_end_grab_op (display, event->xkey.time);
}
meta_workspace_activate (next, event->xkey.time);
if (grabbed_before_release && !meta_prefs_get_no_tab_popup ())
meta_screen_workspace_popup_create (screen, next);
}
static void
handle_set_spew_mark (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
meta_verbose ("-- MARK MARK MARK MARK --\n");
}
void
meta_set_keybindings_disabled (gboolean setting)
{
all_bindings_disabled = setting;
meta_topic (META_DEBUG_KEYBINDINGS,
"Keybindings %s\n", all_bindings_disabled ? "disabled" : "enabled");
}
static void
handle_run_terminal (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
XEvent *event,
MetaKeyBinding *binding,
gpointer dummy)
{
const char *command;
GError *err;
command = meta_prefs_get_terminal_command ();
if (command == NULL)
{
char *s;
meta_topic (META_DEBUG_KEYBINDINGS,
"No terminal command to run in response to "
"keybinding press\n");
s = g_strdup_printf (_("No terminal command has been defined.\n"));
error_on_command (-1, NULL, s, screen->number, event->xkey.time);
g_free (s);
return;
}
err = NULL;
if (!meta_spawn_command_line_async_on_screen (command, screen, &err))
{
error_on_command (-1, command, err->message, screen->number,
event->xkey.time);
g_error_free (err);
}
}
gboolean
meta_keybindings_set_custom_handler (const gchar *name,
MetaKeyHandlerFunc handler,
gpointer user_data,
GDestroyNotify free_data)
{
MetaKeyHandler *key_handler = find_handler (key_handlers, name);
if (!key_handler)
return FALSE;
if (key_handler->user_data_free_func && key_handler->user_data)
key_handler->user_data_free_func (key_handler->user_data);
key_handler->func = handler;
key_handler->user_data = user_data;
key_handler->user_data_free_func = free_data;
return TRUE;
}
void
meta_keybindings_switch_window (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *event_window,
XEvent *event,
MetaKeyBinding *binding)
{
gint backwards = binding->handler->flags & BINDING_IS_REVERSED;
do_choose_window (display, screen, event_window, event, binding,
backwards, FALSE);
}
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