43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
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Backport the implementation of gtk_list_store_iter_is_valid from gtk+-3.
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Index: gtk+-2.24.33/gtk/gtkliststore.c
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===================================================================
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--- gtk+-2.24.33.orig/gtk/gtkliststore.c
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+++ gtk+-2.24.33/gtk/gtkliststore.c
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@@ -1195,16 +1195,31 @@ gboolean
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gtk_list_store_iter_is_valid (GtkListStore *list_store,
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GtkTreeIter *iter)
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{
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+ GSequenceIter *seq_iter;
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+
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g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), FALSE);
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g_return_val_if_fail (iter != NULL, FALSE);
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- if (!VALID_ITER (iter, list_store))
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- return FALSE;
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+ /* can't use VALID_ITER() here, because iter might point
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+ * to random memory.
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+ *
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+ * We MUST NOT dereference it.
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+ */
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- if (g_sequence_iter_get_sequence (iter->user_data) != list_store->seq)
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+ if (iter == NULL ||
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+ iter->user_data == NULL ||
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+ list_store->stamp != iter->stamp)
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return FALSE;
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- return TRUE;
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+ for (seq_iter = g_sequence_get_begin_iter (list_store->seq);
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+ !g_sequence_iter_is_end (seq_iter);
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+ seq_iter = g_sequence_iter_next (seq_iter))
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+ {
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+ if (seq_iter == iter->user_data)
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+ return TRUE;
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+ }
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+
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+ return FALSE;
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}
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static gboolean real_gtk_list_store_row_draggable (GtkTreeDragSource *drag_source,
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