1 files changed, 57 insertions, 0 deletions
diff --git a/accessible/interfaces/nsIAccessibleTextRange.idl b/accessible/interfaces/nsIAccessibleTextRange.idl
new file mode 100644
index 0000000000..5a3e6facaf
--- /dev/null
+++ b/accessible/interfaces/nsIAccessibleTextRange.idl
@@ -0,0 +1,57 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+/* 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/. */
+
+#include "nsISupports.idl"
+
+interface nsIAccessible;
+interface nsIAccessibleText;
+interface nsIArray;
+interface nsIVariant;
+
+/**
+ * A range representing a piece of text in the document.
+ */
+[scriptable, builtinclass, uuid(c4515623-55f9-4543-a3d5-c1e9afa588f4)]
+interface nsIAccessibleTextRange : nsISupports
+{
+  readonly attribute nsIAccessibleText startContainer;
+  readonly attribute long startOffset;
+  readonly attribute nsIAccessibleText endContainer;
+  readonly attribute long endOffset;
+
+  /**
+   * Return an accessible containing the whole range
+   */
+  readonly attribute nsIAccessible container;
+
+  /**
+   * Return true if this range has the same end points of the given range.
+   */
+  boolean compare(in nsIAccessibleTextRange aOtherRange);
+
+  /**
+   * The two endpoints of the range (starting and ending).
+   */
+  const unsigned long EndPoint_Start = 1;
+  const unsigned long EndPoint_End = 2;
+
+  /**
+   * Compare this and given ranges end points.
+   *
+   * @return -1/0/1 if this range end point is before/equal/after the given
+   *          range end point.
+   */
+  long compareEndPoints(in unsigned long aEndPoint,
+                        in nsIAccessibleTextRange aOtherRange,
+                        in unsigned long aOtherRangeEndPoint);
+
+  /**
+   * Crops the range by the given accessible element.
+   */
+  boolean crop(in nsIAccessible aContainer);
+
+  const unsigned long AlignToTop = 0;
+  const unsigned long AlignToBottom = 1;
+};