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keybindings: Split the resolved keybinding out from MetaKeyCombo

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MetaKeyCombo is about the *unresolved* keybinding, which can either be a
"keysym" (<Ctrl>F) or a "keycode" (<Ctrl>0x21). When we resolved the
keysym to a keycode, we stuffed it back in the same MetaKeyCombo, which
confused about what the "keycode" field was for. Thus, we often stomped
on the user's explicit choice if they chose a keycode binding value.

To solve this, create a separate structure, the "devirtualized key combo"
or MetaKeyDevirtCombo, which contains a resolved keycode from the
keysym, and a devirtualized modifier mask. The MetaKeyCombo is now
always a "source" value, and the MetaKeyDevirtCombo is now always what
the user chose.

This also lets us significantly clean up the overlay and ISO key binding
paths.
This commit is contained in:
Jasper St. Pierre 2015-01-06 18:31:33 -08:00
parent a3b8dcbd04
commit 3beb187cac
2 changed files with 80 additions and 89 deletions
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26
src/core/keybindings-private.h
View File

@ -42,16 +42,10 @@ struct _MetaKeyHandler
GDestroyNotify user_data_free_func;
};
struct _MetaKeyBinding
{
const char *name;
KeySym keysym;
KeyCode keycode;
unsigned int mask;
MetaVirtualModifier modifiers;
gint flags;
MetaKeyHandler *handler;
};
typedef struct _MetaKeyDevirtCombo {
xkb_keycode_t keycode;
xkb_mod_mask_t mask;
} MetaKeyDevirtCombo;
/**
* MetaKeyCombo:
@ -67,6 +61,15 @@ struct _MetaKeyCombo
MetaVirtualModifier modifiers;
};
struct _MetaKeyBinding
{
const char *name;
MetaKeyCombo combo;
MetaKeyDevirtCombo devirt_combo;
gint flags;
MetaKeyHandler *handler;
};
typedef struct
{
char *name;
@ -97,8 +100,9 @@ typedef struct
xkb_mod_mask_t super_mask;
xkb_mod_mask_t meta_mask;
MetaKeyCombo overlay_key_combo;
MetaKeyDevirtCombo overlay_key_devirt_combo;
gboolean overlay_key_only_pressed;
MetaKeyCombo *iso_next_group_combos;
MetaKeyDevirtCombo *iso_next_group_combos;
int n_iso_next_group_combos;
xkb_level_index_t keymap_num_levels;

143
src/core/keybindings.c
View File

@ -91,7 +91,7 @@ meta_key_binding_get_name (MetaKeyBinding *binding)
MetaVirtualModifier
meta_key_binding_get_modifiers (MetaKeyBinding *binding)
{
return binding->modifiers;
return binding->combo.modifiers;
}
gboolean
@ -103,7 +103,7 @@ meta_key_binding_is_reversed (MetaKeyBinding *binding)
guint
meta_key_binding_get_mask (MetaKeyBinding *binding)
{
return binding->mask;
return binding->devirt_combo.mask;
}
gboolean
@ -362,7 +362,7 @@ static void
reload_iso_next_group_combos (MetaKeyBindingManager *keys)
{
const char *iso_next_group_option;
MetaKeyCombo *combos;
MetaKeyDevirtCombo *combos;
int *keycodes;
int n_keycodes;
int n_combos;
@ -390,39 +390,36 @@ reload_iso_next_group_combos (MetaKeyBindingManager *keys)
g_str_equal (iso_next_group_option, "caps_toggle"))
{
n_combos = n_keycodes;
combos = g_new (MetaKeyCombo, n_combos);
combos = g_new (MetaKeyDevirtCombo, n_combos);
for (i = 0; i < n_keycodes; ++i)
{
combos[i].keysym = XKB_KEY_ISO_Next_Group;
combos[i].keycode = keycodes[i];
combos[i].modifiers = 0;
combos[i].mask = 0;
}
}
else if (g_str_equal (iso_next_group_option, "shift_caps_toggle") ||
g_str_equal (iso_next_group_option, "shifts_toggle"))
{
n_combos = n_keycodes;
combos = g_new (MetaKeyCombo, n_combos);
combos = g_new (MetaKeyDevirtCombo, n_combos);
for (i = 0; i < n_keycodes; ++i)
{
combos[i].keysym = XKB_KEY_ISO_Next_Group;
combos[i].keycode = keycodes[i];
combos[i].modifiers = ShiftMask;
combos[i].mask = ShiftMask;
}
}
else if (g_str_equal (iso_next_group_option, "alt_caps_toggle") ||
g_str_equal (iso_next_group_option, "alt_space_toggle"))
{
n_combos = n_keycodes;
combos = g_new (MetaKeyCombo, n_combos);
combos = g_new (MetaKeyDevirtCombo, n_combos);
for (i = 0; i < n_keycodes; ++i)
{
combos[i].keysym = XKB_KEY_ISO_Next_Group;
combos[i].keycode = keycodes[i];
combos[i].modifiers = Mod1Mask;
combos[i].mask = Mod1Mask;
}
}
else if (g_str_equal (iso_next_group_option, "ctrl_shift_toggle") ||
@ -430,50 +427,44 @@ reload_iso_next_group_combos (MetaKeyBindingManager *keys)
g_str_equal (iso_next_group_option, "rctrl_rshift_toggle"))
{
n_combos = n_keycodes * 2;
combos = g_new (MetaKeyCombo, n_combos);
combos = g_new (MetaKeyDevirtCombo, n_combos);
for (i = 0; i < n_keycodes; ++i)
{
combos[i].keysym = XKB_KEY_ISO_Next_Group;
combos[i].keycode = keycodes[i];
combos[i].modifiers = ShiftMask;
combos[i].mask = ShiftMask;
combos[i + n_keycodes].keysym = XKB_KEY_ISO_Next_Group;
combos[i + n_keycodes].keycode = keycodes[i];
combos[i + n_keycodes].modifiers = ControlMask;
combos[i + n_keycodes].mask = ControlMask;
}
}
else if (g_str_equal (iso_next_group_option, "ctrl_alt_toggle"))
{
n_combos = n_keycodes * 2;
combos = g_new (MetaKeyCombo, n_combos);
combos = g_new (MetaKeyDevirtCombo, n_combos);
for (i = 0; i < n_keycodes; ++i)
{
combos[i].keysym = XKB_KEY_ISO_Next_Group;
combos[i].keycode = keycodes[i];
combos[i].modifiers = Mod1Mask;
combos[i].mask = Mod1Mask;
combos[i + n_keycodes].keysym = XKB_KEY_ISO_Next_Group;
combos[i + n_keycodes].keycode = keycodes[i];
combos[i + n_keycodes].modifiers = ControlMask;
combos[i + n_keycodes].mask = ControlMask;
}
}
else if (g_str_equal (iso_next_group_option, "alt_shift_toggle") ||
g_str_equal (iso_next_group_option, "lalt_lshift_toggle"))
{
n_combos = n_keycodes * 2;
combos = g_new (MetaKeyCombo, n_combos);
combos = g_new (MetaKeyDevirtCombo, n_combos);
for (i = 0; i < n_keycodes; ++i)
{
combos[i].keysym = XKB_KEY_ISO_Next_Group;
combos[i].keycode = keycodes[i];
combos[i].modifiers = Mod1Mask;
combos[i].mask = Mod1Mask;
combos[i + n_keycodes].keysym = XKB_KEY_ISO_Next_Group;
combos[i + n_keycodes].keycode = keycodes[i];
combos[i + n_keycodes].modifiers = ShiftMask;
combos[i + n_keycodes].mask = ShiftMask;
}
}
else
@ -517,6 +508,19 @@ devirtualize_modifiers (MetaKeyBindingManager *keys,
*mask |= Mod5Mask;
}
static void
devirtualize_key_combo (MetaKeyBindingManager *keys,
MetaKeyCombo *combo,
MetaKeyDevirtCombo *devirt_combo)
{
if (combo->keysym != 0)
devirt_combo->keycode = get_first_keycode_for_keysym (keys, combo->keysym);
else
devirt_combo->keycode = combo->keycode;
devirtualize_modifiers (keys, combo->modifiers, &devirt_combo->mask);
}
static void
binding_reload_combos_foreach (gpointer key,
gpointer value,
@ -525,10 +529,7 @@ binding_reload_combos_foreach (gpointer key,
MetaKeyBindingManager *keys = data;
MetaKeyBinding *binding = value;
if (binding->keysym)
binding->keycode = get_first_keycode_for_keysym (keys, binding->keysym);
devirtualize_modifiers (keys, binding->modifiers, &binding->mask);
devirtualize_key_combo (keys, &binding->combo, &binding->devirt_combo);
}
static void
@ -536,8 +537,9 @@ reload_combos (MetaKeyBindingManager *keys)
{
determine_keymap_num_levels (keys);
if (keys->overlay_key_combo.keysym != 0)
keys->overlay_key_combo.keycode = get_first_keycode_for_keysym (keys, keys->overlay_key_combo.keysym);
devirtualize_key_combo (keys,
&keys->overlay_key_combo,
&keys->overlay_key_devirt_combo);
reload_iso_next_group_combos (keys);
@ -550,7 +552,7 @@ index_binding (MetaKeyBindingManager *keys,
{
guint32 index_key;
index_key = key_binding_key (binding->keycode, binding->mask);
index_key = key_binding_key (binding->devirt_combo.keycode, binding->devirt_combo.mask);
g_hash_table_replace (keys->key_bindings_index,
GINT_TO_POINTER (index_key), binding);
}
@ -602,10 +604,7 @@ rebuild_binding_table (MetaKeyBindingManager *keys,
b->name = pref->name;
b->handler = handler;
b->flags = handler->flags;
b->keysym = combo->keysym;
b->keycode = combo->keycode;
b->modifiers = combo->modifiers;
b->mask = 0;
b->combo = *combo;
g_hash_table_add (keys->key_bindings, b);
}
@ -629,10 +628,7 @@ rebuild_binding_table (MetaKeyBindingManager *keys,
b->name = grab->name;
b->handler = handler;
b->flags = handler->flags;
b->keysym = grab->combo.keysym;
b->keycode = grab->combo.keycode;
b->modifiers = grab->combo.modifiers;
b->mask = 0;
b->combo = grab->combo;
g_hash_table_add (keys->key_bindings, b);
}
@ -859,7 +855,7 @@ meta_display_get_keybinding_action (MetaDisplay *display,
* of mutter keybindings while holding a grab, the overlay-key-only-pressed
* tracking is left to the plugin here.
*/
if (keycode == (unsigned int)keys->overlay_key_combo.keycode)
if (keycode == (unsigned int)keys->overlay_key_devirt_combo.keycode)
return META_KEYBINDING_ACTION_OVERLAY_KEY;
binding = get_keybinding (keys, keycode, mask);
@ -1237,12 +1233,12 @@ change_keygrab_foreach (gpointer key,
if (data->only_per_window != binding_is_per_window)
return;
if (binding->keycode == 0)
if (binding->devirt_combo.keycode == 0)
return;
meta_change_keygrab (data->keys, data->xwindow, data->grab,
binding->keycode,
binding->mask);
binding->devirt_combo.keycode,
binding->devirt_combo.mask);
}
static void
@ -1268,10 +1264,10 @@ meta_screen_change_keygrabs (MetaScreen *screen,
MetaDisplay *display = screen->display;
MetaKeyBindingManager *keys = &display->key_binding_manager;
if (keys->overlay_key_combo.keycode != 0)
if (keys->overlay_key_devirt_combo.keycode != 0)
meta_change_keygrab (keys, screen->xroot, grab,
keys->overlay_key_combo.keycode,
keys->overlay_key_combo.modifiers);
keys->overlay_key_devirt_combo.keycode,
keys->overlay_key_devirt_combo.mask);
if (keys->iso_next_group_combos)
{
@ -1282,7 +1278,7 @@ meta_screen_change_keygrabs (MetaScreen *screen,
{
meta_change_keygrab (keys, screen->xroot, grab,
keys->iso_next_group_combos[i].keycode,
keys->iso_next_group_combos[i].modifiers);
keys->iso_next_group_combos[i].mask);
}
++i;
}
@ -1394,8 +1390,8 @@ handle_external_grab (MetaDisplay *display,
gpointer user_data)
{
guint action = meta_display_get_keybinding_action (display,
binding->keycode,
binding->mask);
binding->devirt_combo.keycode,
binding->devirt_combo.mask);
meta_display_accelerator_activate (display, action, event);
}
@ -1408,12 +1404,10 @@ meta_display_grab_accelerator (MetaDisplay *display,
MetaKeyBindingManager *keys = &display->key_binding_manager;
MetaKeyBinding *binding;
MetaKeyGrab *grab;
guint keysym = 0;
guint keycode = 0;
guint mask = 0;
MetaVirtualModifier modifiers = 0;
MetaKeyCombo combo;
MetaKeyDevirtCombo devirt_combo;
if (!meta_parse_accelerator (accelerator, &keysym, &keycode, &modifiers))
if (!meta_parse_accelerator (accelerator, &combo.keysym, &combo.keycode, &combo.modifiers))
{
meta_topic (META_DEBUG_KEYBINDINGS,
"Failed to parse accelerator\n");
@ -1422,36 +1416,29 @@ meta_display_grab_accelerator (MetaDisplay *display,
return META_KEYBINDING_ACTION_NONE;
}
devirtualize_modifiers (keys, modifiers, &mask);
devirtualize_key_combo (keys, &combo, &devirt_combo);
if (keysym != 0)
keycode = get_first_keycode_for_keysym (keys, keysym);
if (keycode == 0)
if (devirt_combo.keycode == 0)
return META_KEYBINDING_ACTION_NONE;
if (get_keybinding (keys, keycode, mask))
if (get_keybinding (keys, devirt_combo.keycode, devirt_combo.mask))
return META_KEYBINDING_ACTION_NONE;
if (META_IS_BACKEND_X11 (backend))
meta_change_keygrab (keys, display->screen->xroot, TRUE, keycode, mask);
meta_change_keygrab (keys, display->screen->xroot, TRUE, devirt_combo.keycode, devirt_combo.mask);
grab = g_new0 (MetaKeyGrab, 1);
grab->action = next_dynamic_keybinding_action ();
grab->name = meta_external_binding_name_for_action (grab->action);
grab->combo.keysym = keysym;
grab->combo.keycode = keycode;
grab->combo.modifiers = modifiers;
grab->combo = combo;
g_hash_table_insert (external_grabs, grab->name, grab);
binding = g_malloc0 (sizeof (MetaKeyBinding));
binding->name = grab->name;
binding->handler = HANDLER ("external-grab");
binding->keysym = grab->combo.keysym;
binding->keycode = grab->combo.keycode;
binding->modifiers = grab->combo.modifiers;
binding->mask = mask;
binding->combo = combo;
binding->devirt_combo = devirt_combo;
g_hash_table_add (keys->key_bindings, binding);
index_binding (keys, binding);
@ -1488,10 +1475,10 @@ meta_display_ungrab_accelerator (MetaDisplay *display,
if (META_IS_BACKEND_X11 (backend))
meta_change_keygrab (keys, display->screen->xroot, FALSE,
binding->keycode,
binding->mask);
binding->devirt_combo.keycode,
binding->devirt_combo.mask);
index_key = key_binding_key (binding->keycode, binding->mask);
index_key = key_binding_key (binding->devirt_combo.keycode, binding->devirt_combo.mask);
g_hash_table_remove (keys->key_bindings_index, GINT_TO_POINTER (index_key));
g_hash_table_remove (keys->key_bindings, binding);
@ -1766,7 +1753,7 @@ process_overlay_key (MetaDisplay *display,
if (keys->overlay_key_only_pressed)
{
if (event->hardware_keycode != (int)keys->overlay_key_combo.keycode)
if (event->hardware_keycode != (int)keys->overlay_key_devirt_combo.keycode)
{
keys->overlay_key_only_pressed = FALSE;
@ -1819,7 +1806,7 @@ process_overlay_key (MetaDisplay *display,
clutter_input_device_get_device_id (event->device),
XIAsyncDevice, event->time);
binding = get_keybinding (keys, keys->overlay_key_combo.keycode, 0);
binding = get_keybinding (keys, keys->overlay_key_devirt_combo.keycode, 0);
if (binding &&
meta_compositor_filter_keybinding (display->compositor, binding))
return TRUE;
@ -1848,7 +1835,7 @@ process_overlay_key (MetaDisplay *display,
return TRUE;
}
else if (event->type == CLUTTER_KEY_PRESS &&
event->hardware_keycode == (int)keys->overlay_key_combo.keycode)
event->hardware_keycode == (int)keys->overlay_key_devirt_combo.keycode)
{
keys->overlay_key_only_pressed = TRUE;
/* We keep the keyboard frozen - this allows us to use ReplayKeyboard
@ -1886,7 +1873,7 @@ process_iso_next_group (MetaDisplay *display,
for (i = 0; i < keys->n_iso_next_group_combos; ++i)
{
if (keycode == keys->iso_next_group_combos[i].keycode &&
modifiers == keys->iso_next_group_combos[i].modifiers)
modifiers == keys->iso_next_group_combos[i].mask)
{
/* If the signal handler returns TRUE the keyboard will
remain frozen. It's the signal handler's responsibility