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buffer_backspace should delete \r\n in one go

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Special case \r\n in gtk_text_buffer_backspace since \r should not be
reinserted even if we are deleting one char at a time. Also add
corresponding unit test. Fixes bug #544724.
This commit is contained in:
Paolo Borelli 2009-08-29 21:29:57 -04:00 committed by Matthias Clasen
parent f7cfe2bfea
commit 2d8b8e054a
2 changed files with 40 additions and 2 deletions
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5
gtk/gtktextbuffer.c
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@ -3887,13 +3887,14 @@ gtk_text_buffer_backspace (GtkTextBuffer *buffer,
if (gtk_text_buffer_delete_interactive (buffer, &start, &end,
default_editable))
{
if (backspace_deletes_character)
/* special case \r\n, since we never want to reinsert \r */
if (backspace_deletes_character && strcmp ("\r\n", cluster_text))
{
gchar *normalized_text = g_utf8_normalize (cluster_text,
strlen (cluster_text),
G_NORMALIZE_NFD);
glong len = g_utf8_strlen (normalized_text, -1);
if (len > 1)
gtk_text_buffer_insert_interactive (buffer,
&start,

37
gtk/tests/textbuffer.c
View File

@ -879,6 +879,8 @@ split_r_n_separators_test (void)
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 3);
g_assert (gtk_text_iter_ends_line (&iter));
g_object_unref (buffer);
}
static void
@ -912,6 +914,40 @@ test_line_separator (void)
split_r_n_separators_test ();
}
static void
test_backspace (void)
{
GtkTextBuffer *buffer;
GtkTextIter iter;
gboolean ret;
buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_set_text (buffer, "foo", -1);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 2);
ret = gtk_text_buffer_backspace (buffer, &iter, TRUE, TRUE);
g_assert (ret);
g_assert_cmpint (1, ==, gtk_text_iter_get_offset (&iter));
g_assert_cmpint (2, ==, gtk_text_buffer_get_char_count (buffer));
gtk_text_buffer_set_text (buffer, "foo", -1);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
ret = gtk_text_buffer_backspace (buffer, &iter, TRUE, TRUE);
g_assert (!ret);
g_assert_cmpint (0, ==, gtk_text_iter_get_offset (&iter));
g_assert_cmpint (3, ==, gtk_text_buffer_get_char_count (buffer));
/* test bug #544724 */
gtk_text_buffer_set_text (buffer, "foo\r\n\r\nbar", -1);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 5);
ret = gtk_text_buffer_backspace (buffer, &iter, TRUE, TRUE);
g_assert (ret);
g_assert_cmpint (0, ==, gtk_text_iter_get_line (&iter));
g_assert_cmpint (8, ==, gtk_text_buffer_get_char_count (buffer));
g_object_unref (buffer);
}
static void
test_logical_motion (void)
{
@ -1297,6 +1333,7 @@ main (int argc, char** argv)
g_test_add_func ("/TextBuffer/UTF8 unknown char", test_utf8);
g_test_add_func ("/TextBuffer/Line separator", test_line_separator);
g_test_add_func ("/TextBuffer/Backspace", test_backspace);
g_test_add_func ("/TextBuffer/Logical motion", test_logical_motion);
g_test_add_func ("/TextBuffer/Marks", test_marks);
g_test_add_func ("/TextBuffer/Empty buffer", test_empty_buffer);