get the modifier mask for a modifier key that is pressed/released more accurately, using the table we built already for other purposes

1 files changed, 31 insertions, 14 deletions

diff --git a/obt/keyboard.c b/obt/keyboard.c
index 2d3a0553..30aa7f93 100644
--- a/obt/keyboard.c
+++ b/obt/keyboard.c
@@ -191,23 +191,40 @@ void xim_init(void)
     g_free(aname);
 }
 
-guint obt_keyboard_keycode_to_modmask(guint keycode)
+ObtModkeysKey obt_keyboard_keyevent_to_modkey(XEvent *e)
 {
-    gint i, j;
-    guint mask = 0;
-
-    if (keycode == NoSymbol) return 0;
+    KeySym sym;
 
-    /* go through each of the modifier masks (eg ShiftMask, CapsMask...) */
-    for (i = 0; i < NUM_MASKS; ++i) {
-        /* go through each keycode that is bound to the mask */
-        for (j = 0; j < modmap->max_keypermod; ++j) {
-            /* compare with a keycode that is bound to the mask (i) */
-            if (modmap->modifiermap[i*modmap->max_keypermod + j] == keycode)
-                mask |= nth_mask(i);
-        }
+    g_return_val_if_fail(e->type == KeyPress || e->type == KeyRelease,
+                         OBT_KEYBOARD_MODKEY_NONE);
+
+    XLookupString(&e->xkey, NULL, 0, &sym, NULL);
+
+    switch (sym) {
+    case XK_Num_Lock: return OBT_KEYBOARD_MODKEY_NUMLOCK;
+    case XK_Scroll_Lock: return OBT_KEYBOARD_MODKEY_SCROLLLOCK;
+    case XK_Caps_Lock: return OBT_KEYBOARD_MODKEY_SHIFT;
+    case XK_Alt_L:
+    case XK_Alt_R: return OBT_KEYBOARD_MODKEY_ALT;
+    case XK_Super_L:
+    case XK_Super_R: return OBT_KEYBOARD_MODKEY_SUPER;
+    case XK_Hyper_L:
+    case XK_Hyper_R: return OBT_KEYBOARD_MODKEY_SUPER;
+    case XK_Meta_L:
+    case XK_Meta_R: return OBT_KEYBOARD_MODKEY_SUPER;
+    case XK_Control_L:
+    case XK_Control_R: return OBT_KEYBOARD_MODKEY_CONTROL;
+    case XK_Shift_L:
+    case XK_Shift_R: return OBT_KEYBOARD_MODKEY_SHIFT;
+    default: return OBT_KEYBOARD_MODKEY_NONE;
     }
-    return mask;
+}
+
+guint obt_keyboard_keyevent_to_modmask(XEvent *e)
+{
+    g_return_val_if_fail(e->type == KeyPress || e->type == KeyRelease, 0);
+
+    return obt_keyboard_modkey_to_modmask(obt_keyboard_keyevent_to_modkey(e));
 }
 
 guint obt_keyboard_only_modmasks(guint mask)