Change the API of the keygrabber so only one gdk_sync is neccessary. (ticket #7999)

src/sugar/_sugarext.defs

@@ -102,12 +102,12 @@
   (return-type "GType")
 )
 
-(define-method grab
+(define-method grab_keys
   (of-object "SugarKeyGrabber")
-  (c-name "sugar_key_grabber_grab")
+  (c-name "sugar_key_grabber_grab_keys")
   (return-type "none")
   (parameters
-    '("const-char*" "key")
+    '("const-char*[]" "keys")
   )
 )
 

src/sugar/_sugarext.override

@@ -33,3 +33,48 @@ ignore-glob
   *_get_type
   _*
 %%
+override sugar_key_grabber_grab_keys kwargs
+static PyObject *
+_wrap_sugar_key_grabber_grab_keys(PyGObject *self, PyObject *args, PyObject *kwargs)
+{
+    static char *kwlist[] = { "key", NULL };
+	PyObject *py_keys;
+	char **keys;
+	int i, len;
+
+    if (!PyArg_ParseTupleAndKeywords(args,kwargs,
+                                     "O:SugarKeyGrabber.grab_keys",
+                                     kwlist, &py_keys))
+        return NULL;
+
+    if (!PySequence_Check(py_keys) || (len = PySequence_Size(py_keys)) < 0) {
+        PyErr_SetString(PyExc_ValueError,
+                        "keys should be a sequence of strings");
+        return NULL;
+    }
+
+    keys = g_new(char*, len + 1);
+    for (i = 0; i < len; i++) {
+        PyObject *item = PySequence_GetItem(py_keys, i);
+        if (!item) {
+            g_free(keys);
+            return NULL;
+        }
+        if (!PyString_Check(item)) {
+            PyErr_SetString(PyExc_TypeError, "key must be a string");
+            g_free(keys);
+            Py_DECREF(item);
+            return NULL;
+        }
+        keys[i] = PyString_AsString(item);
+        Py_DECREF(item);
+    }
+    keys[len] = NULL;
+
+    sugar_key_grabber_grab_keys (SUGAR_KEY_GRABBER(self->obj), (const char**) keys);
+
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+
+%%

src/sugar/sugar-key-grabber.c

@@ -155,21 +155,15 @@ sugar_key_grabber_init(SugarKeyGrabber *grabber)
  * gnome-control-center/gnome-settings-daemon/gnome-settings-multimedia-keys.c
  */
 
-static gboolean
+static void
 grab_key_real (Key *key, GdkWindow *root, gboolean grab, int result)
 {
-        gdk_error_trap_push ();
         if (grab)
                 XGrabKey (GDK_DISPLAY(), key->keycode, (result | key->state),
                                 GDK_WINDOW_XID (root), True, GrabModeAsync, GrabModeAsync);
         else
                 XUngrabKey(GDK_DISPLAY(), key->keycode, (result | key->state),
                                 GDK_WINDOW_XID (root));
-        gdk_flush ();
-
-        gdk_error_trap_pop ();
-
-        return TRUE;
 }
 
 #define N_BITS 32
@@ -198,18 +192,27 @@ grab_key (SugarKeyGrabber *grabber, Key *key, gboolean grab)
                                 result |= (1<<indexes[j]);
                 }
 
-                if (grab_key_real (key, grabber->root, grab, result) == FALSE)
-                        return;
+                grab_key_real (key, grabber->root, grab, result);
         }
 }
 
+
 void
-sugar_key_grabber_grab(SugarKeyGrabber *grabber, const char *key)
+sugar_key_grabber_grab_keys(SugarKeyGrabber *grabber, const char **keys)
 {
+    char **cur = keys;
+    char *key;
 	Key *keyinfo;
 
+    gdk_error_trap_push();
+
+    while (*cur != NULL) {
+        key = *cur;
+        cur += 1;
+        
         keyinfo = g_new0 (Key, 1);
         keyinfo->key = g_strdup(key);
+
         egg_accelerator_parse_virtual (key, &keyinfo->keysym,
                                        &keyinfo->keycode, &keyinfo->state);
 
@@ -218,6 +221,10 @@ sugar_key_grabber_grab(SugarKeyGrabber *grabber, const char *key)
         grabber->keys = g_list_append(grabber->keys, keyinfo);	
     }
 
+    gdk_flush();
+    gdk_error_trap_push();
+}
+
 gboolean
 sugar_key_grabber_is_modifier(SugarKeyGrabber *grabber, guint keycode, guint mask)
 {

src/sugar/sugar-key-grabber.h

@@ -55,8 +55,8 @@ struct _SugarKeyGrabberClass {
 };
 
 GType	 sugar_key_grabber_get_type	(void);
-void     sugar_key_grabber_grab		(SugarKeyGrabber *grabber,
-									 const char	     *key);
+void     sugar_key_grabber_grab_keys (SugarKeyGrabber *grabber,
+									  const char     **keys);
 char    *sugar_key_grabber_get_key  (SugarKeyGrabber *grabber,
 									 guint            keycode,
 									 guint            state);