Horizontal equivalents of Above / Below for labeling bar charts?

Question

NB: For this post, I'll use bar's end as shorthand for the end of the bar that's opposite to the bar's origin.

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In bar charts, the Above symbol can be used to position labels right outside the bar's end:

BarChart[{531, 29, 1869}
 , ChartLabels -> {"A", "B", "C"}
 , LabelingFunction -> Above
 , ImageSize -> Small
]

If BarOrigin -> Top, one can get the corresponding effect by using Below instead of Above:

BarChart[{531, 29, 1869}
 , ChartLabels -> {"A", "B", "C"}
 , BarOrigin -> Top
 , LabelingFunction -> Below
 , ImageSize -> Small
]

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How can one achieve the same effect when BarOrigin -> Left or BarOrigin -> Right?

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To be clear about the desired effect, when BarOrigin -> Left (resp. BarOrigin -> Right), the label should be placed to the right (resp. to the left) of the bar, just outside the bar's end. The label's text should be left-justified (resp. right-justified), but it should have the same font, size, and orientation is it does when LabelingFunction -> Above.

Answer 1

Using LabelingFunction with After sets the labels to the rightside of the bar.

BarChart[data, ChartLabels -> {"A", "B", "C"}, BarOrigin -> Left, 
LabelingFunction -> After, ImageSize -> Medium]

Similarly, to get the labels before the bar, use LabelingFunction -> Before.