Refactor DocumentMarkerController

third_party/WebKit/Source/core/editing/markers/RenderedDocumentMarker.h

-/*
- * Copyright (C) 2011 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef RenderedDocumentMarker_h
-#define RenderedDocumentMarker_h
-
-#include "core/editing/markers/DocumentMarker.h"
-#include "platform/geometry/LayoutRect.h"
-
-namespace blink {
-
-class RenderedDocumentMarker final : public DocumentMarker {
- private:
-  enum class State { Invalid, ValidNull, ValidNotNull };
-
- public:
-  static RenderedDocumentMarker* create(const DocumentMarker& marker) {
-    return new RenderedDocumentMarker(marker);
-  }
-
-  bool isRendered() const { return m_state == State::ValidNotNull; }
-  bool contains(const LayoutPoint& point) const {
-    DCHECK_EQ(m_state, State::ValidNotNull);
-    return m_renderedRect.contains(point);
-  }
-  void setRenderedRect(const LayoutRect& rect) {
-    if (m_state == State::ValidNotNull && rect == m_renderedRect)
-      return;
-    m_state = State::ValidNotNull;
-    m_renderedRect = rect;
-  }
-
-  const LayoutRect& renderedRect() const {
-    DCHECK_EQ(m_state, State::ValidNotNull);
-    return m_renderedRect;
-  }
-
-  void nullifyRenderedRect() {
-    m_state = State::ValidNull;
-    // Now |m_renderedRect| can not be accessed until |setRenderedRect| is
-    // called.
-  }
-
-  void invalidate() { m_state = State::Invalid; }
-  bool isValid() const { return m_state != State::Invalid; }
-
- private:
-  explicit RenderedDocumentMarker(const DocumentMarker& marker)
-      : DocumentMarker(marker), m_state(State::Invalid) {}
-
-  LayoutRect m_renderedRect;
-  State m_state;
-};
-
-DEFINE_TYPE_CASTS(RenderedDocumentMarker, DocumentMarker, marker, true, true);
-
-}  // namespace blink
-
-WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(
-    blink::RenderedDocumentMarker);
-
-#endif