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Fix g_icon_to_string() regression (doc inconsistency).

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g_icon_new_for_string() docs states that it should return a single name
when created with a single name. I add a second condition to this case:
the themed icon must not include default fallbacks (i.e. it must not
have been created with `g_themed_icon_new_with_default_fallbacks()`).
Otherwise the return value of `g_icon_new_for_string()` would not
recreate the same icon list when passed to `g_icon_new_for_string()`
(which would be another documentation inconsistency).

g_icon_new_for_string() is now back to old behavior for this specific
case.

I also revert the unit test for this case, and add a new unit test when
using g_themed_icon_new_with_default_fallbacks() with a single name as
well.

Closes #1513.
This commit is contained in:
Jehan 2018-09-05 14:51:18 +02:00
parent d2f412590e
commit 8519368c0e
2 changed files with 24 additions and 6 deletions
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18
gio/gicon.c
View File

@ -199,8 +199,8 @@ g_icon_to_string_tokenized (GIcon *icon, GString *s)
* native, the returned string is the result of g_file_get_uri()
* (such as `sftp://path/to/my%20icon.png`).
*
* - If @icon is a #GThemedIcon with exactly one name, the encoding is
* simply the name (such as `network-server`).
* - If @icon is a #GThemedIcon with exactly one name and no fallbacks,
* the encoding is simply the name (such as `network-server`).
*
* Virtual: to_tokens
* Returns: (nullable): An allocated NUL-terminated UTF8 string or
@ -237,15 +237,23 @@ g_icon_to_string (GIcon *icon)
}
else if (G_IS_THEMED_ICON (icon))
{
const char * const *names;
char **names = NULL;
gboolean use_default_fallbacks = FALSE;
names = g_themed_icon_get_names (G_THEMED_ICON (icon));
g_object_get (G_OBJECT (icon),
"names", &names,
"use-default-fallbacks", &use_default_fallbacks,
NULL);
/* Themed icon initialized with a single name and no fallbacks. */
if (names != NULL &&
names[0] != NULL &&
names[0][0] != '.' && /* Allowing icons starting with dot would break G_ICON_SERIALIZATION_MAGIC0 */
g_utf8_validate (names[0], -1, NULL) && /* Only return utf8 strings */
names[1] == NULL)
names[1] == NULL &&
! use_default_fallbacks)
ret = g_strdup (names[0]);
g_strfreev (names);
}
if (ret == NULL)

12
gio/tests/g-icon.c
View File

@ -119,7 +119,17 @@ test_g_icon_to_string (void)
icon = g_themed_icon_new ("network-server");
data = g_icon_to_string (icon);
g_assert_cmpstr (data, ==, ". GThemedIcon network-server network-server-symbolic");
g_assert_cmpstr (data, ==, "network-server");
icon2 = g_icon_new_for_string (data, &error);
g_assert_no_error (error);
g_assert (g_icon_equal (icon, icon2));
g_free (data);
g_object_unref (icon);
g_object_unref (icon2);
icon = g_themed_icon_new_with_default_fallbacks ("network-server");
data = g_icon_to_string (icon);
g_assert_cmpstr (data, ==, ". GThemedIcon network-server network network-server-symbolic network-symbolic");
icon2 = g_icon_new_for_string (data, &error);
g_assert_no_error (error);
g_assert (g_icon_equal (icon, icon2));