void RenderTextTrackCue::repositionCueSnapToLinesSet()
{
InlineFlowBox* firstLineBox;
LayoutUnit step;
LayoutUnit position;
if (!initializeLayoutParameters(firstLineBox, step, position))
return;
bool switched;
placeBoxInDefaultPosition(position, switched);
// 11. Step loop: If none of the boxes in boxes would overlap any of the boxes
// in output and all the boxes in output are within the video's rendering area
// then jump to the step labeled done positioning.
while (isOutside() || isOverlapping()) {
if (!shouldSwitchDirection(firstLineBox, step))
// 13. Move all the boxes in boxes ...
// 14. Jump back to the step labeled step loop.
moveBoxesByStep(step);
else if (!switchDirection(switched, step))
break;
// 19. Jump back to the step labeled step loop.
}
// Acommodate extra top and bottom padding, border or margin.
// Note: this is supported only for internal UA styling, not through the cue selector.
if (hasInlineDirectionBordersPaddingOrMargin())
moveIfNecessaryToKeepWithinContainer();
}
void RenderVTTCue::repositionCueSnapToLinesSet()
{
InlineFlowBox* firstLineBox;
LayoutUnit step;
LayoutUnit position;
if (!findFirstLineBox(firstLineBox))
return;
if (!initializeLayoutParameters(firstLineBox, step, position))
return;
bool switched;
placeBoxInDefaultPosition(position, switched);
// 11. Step loop: If none of the boxes in boxes would overlap any of the boxes
// in output and all the boxes in output are within the video's rendering area
// then jump to the step labeled done positioning.
while (isOutside() || isOverlapping()) {
if (!shouldSwitchDirection(firstLineBox, step)) {
// 13. Move all the boxes in boxes ...
// 14. Jump back to the step labeled step loop.
moveBoxesByStep(step);
} else if (!switchDirection(switched, step)) {
break;
}
// 19. Jump back to the step labeled step loop.
}
// Acommodate extra top and bottom padding, border or margin.
// Note: this is supported only for internal UA styling, not through the cue selector.
if (hasInlineDirectionBordersPaddingOrMargin()) {
IntRect containerRect = containingBlock()->absoluteBoundingBoxRect();
IntRect cueRect = absoluteBoundingBoxRect();
int topOverflow = cueRect.y() - containerRect.y();
int bottomOverflow = containerRect.y() + containerRect.height() - cueRect.y() - cueRect.height();
int adjustment = 0;
if (topOverflow < 0)
adjustment = -topOverflow;
else if (bottomOverflow < 0)
adjustment = bottomOverflow;
if (adjustment)
setY(y() + adjustment);
}
}
void LayoutVTTCue::adjustForTopAndBottomMarginBorderAndPadding()
{
// Accommodate extra top and bottom padding, border or margin.
// Note: this is supported only for internal UA styling, not through the cue selector.
if (!hasInlineDirectionBordersPaddingOrMargin())
return;
IntRect containerRect = containingBlock()->absoluteBoundingBoxRect();
IntRect cueRect = absoluteBoundingBoxRect();
int topOverflow = cueRect.y() - containerRect.y();
int bottomOverflow = containerRect.y() + containerRect.height() - cueRect.y() - cueRect.height();
int adjustment = 0;
if (topOverflow < 0)
adjustment = -topOverflow;
else if (bottomOverflow < 0)
adjustment = bottomOverflow;
if (!adjustment)
return;
setY(location().y() + adjustment);
}
