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      1 /*
      2  * Copyright (C) 2014 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef CompositedSelectionBound_h
     32 #define CompositedSelectionBound_h
     33 
     34 #include "platform/geometry/FloatPoint.h"
     35 #include "platform/graphics/GraphicsLayer.h"
     36 
     37 namespace blink {
     38 
     39 struct CompositedSelectionBound {
     40     enum Type {
     41         Caret,
     42         SelectionLeft,
     43         SelectionRight
     44     };
     45 
     46     CompositedSelectionBound()
     47         : type(Caret)
     48         , layer(nullptr)
     49     {
     50     }
     51 
     52     Type type;
     53 
     54     // The structure describes the position of a caret in space of the GraphicsLayer the caret resides in.
     55     // Where edgeTopInLayer is the top point of the caret, usually on the ascend line of the line box,
     56     // and edgeBottomInLayer it the bottom point, on the baseline of the line box.
     57     GraphicsLayer* layer;
     58     FloatPoint edgeTopInLayer;
     59     FloatPoint edgeBottomInLayer;
     60 };
     61 
     62 } // namespace blink
     63 
     64 #endif
     65