2 * Copyright (C) 2012 Victor Carbune (victor@rosedu.org)
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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.
26 #ifndef RenderVTTCue_h
27 #define RenderVTTCue_h
29 #include "core/rendering/RenderBlockFlow.h"
30 #include "core/rendering/RenderInline.h"
31 #include "platform/geometry/FloatPoint.h"
38 class RenderVTTCue final : public RenderBlockFlow {
40 explicit RenderVTTCue(VTTCueBox*);
43 virtual void layout() override;
45 bool isOutside() const;
46 bool isOverlapping() const;
47 bool shouldSwitchDirection(InlineFlowBox*, LayoutUnit) const;
49 void moveBoxesByStep(LayoutUnit);
50 bool switchDirection(bool&, LayoutUnit&);
52 bool findFirstLineBox(InlineFlowBox*&);
53 bool initializeLayoutParameters(InlineFlowBox*, LayoutUnit&, LayoutUnit&);
54 void placeBoxInDefaultPosition(LayoutUnit, bool&);
55 void repositionCueSnapToLinesSet();
56 void repositionCueSnapToLinesNotSet();
59 FloatPoint m_fallbackPosition;
64 #endif // RenderVTTCue_h