app/javascript/themes/glitch/reducers/height_cache.js

   1 import { Map as ImmutableMap } from 'immutable';
   2 import { HEIGHT_CACHE_SET, HEIGHT_CACHE_CLEAR } from 'themes/glitch/actions/height_cache';
   3
   4 const initialState = ImmutableMap();
   5
   6 const setHeight = (state, key, id, height) => {
   7   return state.update(key, ImmutableMap(), map => map.set(id, height));
   8 };
   9
  10 const clearHeights = () => {
  11   return ImmutableMap();
  12 };
  13
  14 export default function statuses(state = initialState, action) {
  15   switch(action.type) {
  16   case HEIGHT_CACHE_SET:
  17     return setHeight(state, action.key, action.id, action.height);
  18   case HEIGHT_CACHE_CLEAR:
  19     return clearHeights();
  20   default:
  21     return state;
  22   }
  23 };