1 files changed, 46 insertions, 0 deletions
diff --git a/accessible/base/Filters.h b/accessible/base/Filters.h
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+++ b/accessible/base/Filters.h
@@ -0,0 +1,46 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_a11y_Filters_h__
+#define mozilla_a11y_Filters_h__
+
+#include <stdint.h>
+
+/**
+ * Predefined filters used for nsAccIterator and nsAccCollector.
+ */
+namespace mozilla {
+namespace a11y {
+
+class LocalAccessible;
+
+namespace filters {
+
+enum EResult { eSkip = 0, eMatch = 1, eSkipSubtree = 2 };
+
+/**
+ * Return true if the traversed accessible complies with filter.
+ */
+typedef uint32_t (*FilterFuncPtr)(LocalAccessible*);
+
+/**
+ * Matches selected/selectable accessibles in subtree.
+ */
+uint32_t GetSelected(LocalAccessible* aAccessible);
+uint32_t GetSelectable(LocalAccessible* aAccessible);
+
+/**
+ * Matches row accessibles in subtree.
+ */
+uint32_t GetRow(LocalAccessible* aAccessible);
+
+/**
+ * Matches cell accessibles in children.
+ */
+uint32_t GetCell(LocalAccessible* aAccessible);
+}  // namespace filters
+}  // namespace a11y
+}  // namespace mozilla
+
+#endif