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Add a way to get the current modifier state

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Xkb makes this available to us, and it is useful if you want
to do easter eggs that are triggered by Alt.
This commit is contained in:
Matthias Clasen 2012-02-21 00:30:44 +01:00
parent 8ec0cfd571
commit 9a92a1da89
7 changed files with 51 additions and 6 deletions
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1
docs/reference/gdk/gdk3-sections.txt
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@ -631,6 +631,7 @@ gdk_keymap_get_direction
gdk_keymap_have_bidi_layouts
gdk_keymap_get_caps_lock_state
gdk_keymap_get_num_lock_state
gdk_keymap_get_modifier_state
gdk_keymap_add_virtual_modifiers
gdk_keymap_map_virtual_modifiers
gdk_keymap_get_modifier_mask

1
gdk/gdk.symbols
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@ -209,6 +209,7 @@ gdk_keymap_get_entries_for_keycode
gdk_keymap_get_entries_for_keyval
gdk_keymap_get_for_display
gdk_keymap_get_modifier_mask
gdk_keymap_get_modifier_state
gdk_keymap_get_num_lock_state
gdk_keymap_get_type
gdk_keymap_have_bidi_layouts

21
gdk/gdkkeys.c
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@ -378,6 +378,27 @@ gdk_keymap_get_num_lock_state (GdkKeymap *keymap)
return GDK_KEYMAP_GET_CLASS (keymap)->get_num_lock_state (keymap);
}
/**
* gdk_keymap_get_modifier_state:
* @keymap: a #GdkKeymap
*
* Returns the current modifier state.
*
* Returns: the current modifier state.
*
* Since: 3.2
*/
guint
gdk_keymap_get_modifier_state (GdkKeymap *keymap)
{
g_return_val_if_fail (GDK_IS_KEYMAP (keymap), FALSE);
if (GDK_KEYMAP_GET_CLASS (keymap)->get_modifier_state)
return GDK_KEYMAP_GET_CLASS (keymap)->get_modifier_state (keymap);
return 0;
}
/**
* gdk_keymap_get_entries_for_keyval:
* @keymap: a #GdkKeymap

1
gdk/gdkkeys.h
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@ -110,6 +110,7 @@ PangoDirection gdk_keymap_get_direction (GdkKeymap *keymap)
gboolean gdk_keymap_have_bidi_layouts (GdkKeymap *keymap);
gboolean gdk_keymap_get_caps_lock_state (GdkKeymap *keymap);
gboolean gdk_keymap_get_num_lock_state (GdkKeymap *keymap);
guint gdk_keymap_get_modifier_state (GdkKeymap *keymap);
void gdk_keymap_add_virtual_modifiers (GdkKeymap *keymap,
GdkModifierType *state);
gboolean gdk_keymap_map_virtual_modifiers (GdkKeymap *keymap,

1
gdk/gdkkeysprivate.h
View File

@ -63,6 +63,7 @@ struct _GdkKeymapClass
GdkModifierType *state);
GdkModifierType (*get_modifier_mask) (GdkKeymap *keymap,
GdkModifierIntent intent);
guint (* get_modifier_state) (GdkKeymap *keymap);
/* Signals */

2
gdk/x11/gdkdisplay-x11.c
View File

@ -1403,7 +1403,7 @@ _gdk_x11_display_open (const gchar *display_name)
XkbSelectEventDetails (display_x11->xdisplay,
XkbUseCoreKbd, XkbStateNotify,
XkbAllStateComponentsMask,
XkbGroupLockMask|XkbModifierLockMask);
XkbModifierStateMask|XkbGroupStateMask);
XkbSetDetectableAutoRepeat (display_x11->xdisplay,
True,

30
gdk/x11/gdkkeys-x11.c
View File

@ -77,7 +77,8 @@ struct _GdkX11Keymap
guint have_direction : 1;
guint have_lock_state : 1;
guint caps_lock_state : 1;
guint num_lock_state : 1;
guint num_lock_state : 1;
guint modifier_state;
guint current_serial;
#ifdef HAVE_XKB
@ -600,12 +601,14 @@ update_direction (GdkX11Keymap *keymap_x11,
static gboolean
update_lock_state (GdkX11Keymap *keymap_x11,
gint locked_mods)
gint locked_mods,
gint effective_mods)
{
XkbDescPtr xkb G_GNUC_UNUSED;
gboolean have_lock_state;
gboolean caps_lock_state;
gboolean num_lock_state;
guint modifier_state;
/* ensure keymap_x11->num_lock_mask is initialized */
xkb = get_xkb (keymap_x11);
@ -613,14 +616,18 @@ update_lock_state (GdkX11Keymap *keymap_x11,
have_lock_state = keymap_x11->have_lock_state;
caps_lock_state = keymap_x11->caps_lock_state;
num_lock_state = keymap_x11->num_lock_state;
modifier_state = keymap_x11->modifier_state;
keymap_x11->have_lock_state = TRUE;
keymap_x11->caps_lock_state = (locked_mods & GDK_LOCK_MASK) != 0;
keymap_x11->num_lock_state = (locked_mods & keymap_x11->num_lock_mask) != 0;
/* FIXME: sanitize this */
keymap_x11->modifier_state = (guint)effective_mods;
return !have_lock_state
|| (caps_lock_state != keymap_x11->caps_lock_state)
|| (num_lock_state != keymap_x11->num_lock_state);
|| (num_lock_state != keymap_x11->num_lock_state)
|| (modifier_state != keymap_x11->modifier_state);
}
/* keep this in sync with the XkbSelectEventDetails()
@ -640,7 +647,9 @@ _gdk_x11_keymap_state_changed (GdkDisplay *display,
if (update_direction (keymap_x11, XkbStateGroup (&xkb_event->state)))
g_signal_emit_by_name (keymap_x11, "direction-changed");
if (update_lock_state (keymap_x11, xkb_event->state.locked_mods))
if (update_lock_state (keymap_x11,
xkb_event->state.locked_mods,
xkb_event->state.mods))
g_signal_emit_by_name (keymap_x11, "state-changed");
}
}
@ -661,7 +670,7 @@ ensure_lock_state (GdkKeymap *keymap)
XkbStateRec state_rec;
XkbGetState (GDK_DISPLAY_XDISPLAY (display), XkbUseCoreKbd, &state_rec);
update_lock_state (keymap_x11, state_rec.locked_mods);
update_lock_state (keymap_x11, state_rec.locked_mods, state_rec.mods);
}
}
#endif /* HAVE_XKB */
@ -752,6 +761,16 @@ gdk_x11_keymap_get_num_lock_state (GdkKeymap *keymap)
return keymap_x11->num_lock_state;
}
static guint
gdk_x11_keymap_get_modifier_state (GdkKeymap *keymap)
{
GdkX11Keymap *keymap_x11 = GDK_X11_KEYMAP (keymap);
ensure_lock_state (keymap);
return keymap_x11->modifier_state;
}
static gboolean
gdk_x11_keymap_get_entries_for_keyval (GdkKeymap *keymap,
guint keyval,
@ -1580,6 +1599,7 @@ gdk_x11_keymap_class_init (GdkX11KeymapClass *klass)
keymap_class->have_bidi_layouts = gdk_x11_keymap_have_bidi_layouts;
keymap_class->get_caps_lock_state = gdk_x11_keymap_get_caps_lock_state;
keymap_class->get_num_lock_state = gdk_x11_keymap_get_num_lock_state;
keymap_class->get_modifier_state = gdk_x11_keymap_get_modifier_state;
keymap_class->get_entries_for_keyval = gdk_x11_keymap_get_entries_for_keyval;
keymap_class->get_entries_for_keycode = gdk_x11_keymap_get_entries_for_keycode;
keymap_class->lookup_key = gdk_x11_keymap_lookup_key;