nl_tokens: Update a layer that s in the state already . @param { Object } state Current state . @param { Object } action Action to handle .
pl_tokens: function updateLayer ( state , action ) { // action.layer should be a new mix in for the layer. const new_layers = [ ] ; for ( let i = 0 , ii = state . layers . length ; i < ii ; i ++ ) { // if the id matches, update the layer if ( state . layers [ i ] . id === action . layerId ) { if ( action . type === MAP . SET_LAYER_METADATA ) { const meta_update = { } ; meta_update [ action . key ] = action . value ; new_layers . push ( Object . assign ( { } , state . layers [ i ] , { metadata : Object . assign ( { } , state . layers [ i ] . metadata , meta_update ) , } ) ) ; } else { new_layers . push ( Object . assign ( { } , state . layers [ i ] , action . layerDef ) ) ; } // otherwise leave it the same. } else { new_layers . push ( state . layers [ i ] ) ; } } return Object . assign ( { } , state , { layers : new_layers , } , incrementVersion ( <mask> . metadata , LAYER_VERSION_KEY ) ) ; }