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-rw-r--r--accessible/xpcom/xpcAccessibleTextRange.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/accessible/xpcom/xpcAccessibleTextRange.h b/accessible/xpcom/xpcAccessibleTextRange.h
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+++ b/accessible/xpcom/xpcAccessibleTextRange.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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_xpcAccessibleTextRange_h_
+#define mozilla_a11y_xpcAccessibleTextRange_h_
+
+#include <utility>
+
+#include "TextRange.h"
+#include "nsIAccessibleTextRange.h"
+#include "xpcAccessibleHyperText.h"
+
+namespace mozilla {
+namespace a11y {
+
+class TextRange;
+
+#define NS_ACCESSIBLETEXTRANGE_IMPL_IID \
+ { /* 133c8bf4-4913-4355-bd50-426bd1d6e1ad */ \
+ 0xb17652d9, 0x4f54, 0x4c56, { \
+ 0xbb, 0x62, 0x6d, 0x5b, 0xf1, 0xef, 0x91, 0x0c \
+ } \
+ }
+
+class xpcAccessibleTextRange final : public nsIAccessibleTextRange {
+ public:
+ explicit xpcAccessibleTextRange(TextRange& aRange) { SetRange(aRange); }
+
+ NS_DECL_ISUPPORTS
+
+ NS_IMETHOD GetStartContainer(nsIAccessibleText** aAnchor) final;
+ NS_IMETHOD GetStartOffset(int32_t* aOffset) final;
+ NS_IMETHOD GetEndContainer(nsIAccessibleText** aAnchor) final;
+ NS_IMETHOD GetEndOffset(int32_t* aOffset) final;
+ NS_IMETHOD GetContainer(nsIAccessible** aContainer) final;
+ NS_IMETHOD GetEmbeddedChildren(nsIArray** aList) final;
+ NS_IMETHOD Compare(nsIAccessibleTextRange* aOtherRange, bool* aResult) final;
+ NS_IMETHOD CompareEndPoints(uint32_t aEndPoint,
+ nsIAccessibleTextRange* aOtherRange,
+ uint32_t aOtherRangeEndPoint,
+ int32_t* aResult) final;
+ NS_IMETHOD GetText(nsAString& aText) final;
+ NS_IMETHOD Crop(nsIAccessible* aContainer, bool* aSuccess) final;
+ NS_IMETHOD ScrollIntoView(uint32_t aHow) final;
+
+ NS_DECLARE_STATIC_IID_ACCESSOR(NS_ACCESSIBLETEXTRANGE_IMPL_IID)
+
+ private:
+ xpcAccessibleTextRange() {}
+
+ ~xpcAccessibleTextRange() {}
+
+ friend class xpcAccessibleHyperText;
+
+ xpcAccessibleTextRange& operator=(const xpcAccessibleTextRange&) = delete;
+
+ void SetRange(TextRange& aRange);
+
+ TextRange Range();
+
+ // We can't hold a strong reference to an Accessible, but XPCOM needs strong
+ // references. Thus, instead of holding a TextRange here, we hold
+ // xpcAccessibleHyperText references and create the TextRange for each call
+ // using Range().
+ RefPtr<xpcAccessibleHyperText> mRoot;
+ RefPtr<xpcAccessibleHyperText> mStartContainer;
+ int32_t mStartOffset;
+ RefPtr<xpcAccessibleHyperText> mEndContainer;
+ int32_t mEndOffset;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(xpcAccessibleTextRange,
+ NS_ACCESSIBLETEXTRANGE_IMPL_IID)
+
+} // namespace a11y
+} // namespace mozilla
+
+#endif