1 /* 2 * Copyright (C) 2012 Victor Carbune (victor@rosedu.org) 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef RenderVTTCue_h 27 #define RenderVTTCue_h 28 29 #include "core/rendering/RenderBlockFlow.h" 30 #include "core/rendering/RenderInline.h" 31 #include "platform/geometry/FloatPoint.h" 32 33 namespace blink { 34 35 class VTTCue; 36 class VTTCueBox; 37 38 class RenderVTTCue FINAL : public RenderBlockFlow { 39 public: 40 explicit RenderVTTCue(VTTCueBox*); 41 42 private: 43 virtual void layout() OVERRIDE; 44 45 bool isOutside() const; 46 bool isOverlapping() const; 47 bool shouldSwitchDirection(InlineFlowBox*, LayoutUnit) const; 48 49 void moveBoxesByStep(LayoutUnit); 50 bool switchDirection(bool&, LayoutUnit&); 51 52 bool findFirstLineBox(InlineFlowBox*&); 53 bool initializeLayoutParameters(InlineFlowBox*, LayoutUnit&, LayoutUnit&); 54 void placeBoxInDefaultPosition(LayoutUnit, bool&); 55 void repositionCueSnapToLinesSet(); 56 void repositionCueSnapToLinesNotSet(); 57 58 VTTCue* m_cue; 59 FloatPoint m_fallbackPosition; 60 }; 61 62 } // namespace blink 63 64 #endif // RenderVTTCue_h 65