I need to add RTL languages support to my application. I know how to set RTL:
UI.getCurrent().setDirection(Direction.RIGHT_TO_LEFT)
but I also need to programmatically get this value in order to do some changes in the code.
How to get current Direction
value in the view?
Smells like a missing API, but for now, due to the async nature of executeJs
, you might consider the following:
public void fetchPageDirection(SerializableConsumer<Direction> callback) {
UI.getCurrent().getPage()
.executeJs("return document.dir")
.then(String.class, dir -> {
Direction direction = getDirectionByClientName(dir);
callback.accept(direction);
});
}
private Direction getDirectionByClientName(String directionClientName) {
return Arrays.stream(Direction.values())
.filter(direction -> direction.getClientName().equals(directionClientName))
.findFirst().orElse(Direction.LEFT_TO_RIGHT); // Default to LTR
}
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