Vim-Vixen/src/content/reducers/mark.ts

import actions from 'content/actions';

const defaultState = {
  setMode: false,
  jumpMode: false,
  marks: {},
};

export default function reducer(state = defaultState, action = {}) {
  switch (action.type) {
  case actions.MARK_START_SET:
    return { ...state, setMode: true };
  case actions.MARK_START_JUMP:
    return { ...state, jumpMode: true };
  case actions.MARK_CANCEL:
    return { ...state, setMode: false, jumpMode: false };
  case actions.MARK_SET_LOCAL: {
    let marks = { ...state.marks };
    marks[action.key] = { x: action.x, y: action.y };
    return { ...state, setMode: false, marks };
  }
  default:
    return state;
  }
}