| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_MARKERS_TEXT_FRAGMENT_MARKER_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_MARKERS_TEXT_FRAGMENT_MARKER_H_ |
| |
| #include "third_party/blink/renderer/core/editing/markers/text_marker_base.h" |
| #include "third_party/blink/renderer/platform/wtf/casting.h" |
| |
| namespace blink { |
| |
| // A subclass of TextMarkerBase used for indicating a text fragment on the |
| // page. See blink/renderer/core/page/scrolling/text_fragment_anchor.h. |
| class CORE_EXPORT TextFragmentMarker final : public TextMarkerBase { |
| public: |
| TextFragmentMarker(unsigned start_offset, unsigned end_offset); |
| |
| // DocumentMarker implementations |
| MarkerType GetType() const final; |
| |
| // TextMarkerBase implementations |
| bool IsActiveMatch() const final; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(TextFragmentMarker); |
| }; |
| |
| template <> |
| struct DowncastTraits<TextFragmentMarker> { |
| static bool AllowFrom(const DocumentMarker& marker) { |
| return marker.GetType() == DocumentMarker::kTextFragment; |
| } |
| static bool AllowFrom(const TextMarkerBase& marker) { |
| return marker.GetType() == DocumentMarker::kTextFragment; |
| } |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_EDITING_MARKERS_TEXT_FRAGMENT_MARKER_H_ |
