slate-edit-list/tests/decrease-item-depth-basic/transform.js

A Slate plugin to handle keyboard events in lists.

module.exports = function(plugin, state) {
    const selectedBlock = state.document.getDescendant('_selection_key');
    const transform = state.transform();
    state = transform.collapseToStartOf(selectedBlock).moveForward(2).apply();

    return plugin.transforms.decreaseItemDepth(state.transform())
        .apply();
};