def reducer(state: State, action: Action) -> State:
"""Combine state and action to produce new state"""
state = copy.deepcopy(state)
if isinstance(state, dict):
state = forest.state.State.from_dict(state)
if isinstance(action, dict):
try:
action = forest.actions.Action.from_dict(action)
except TypeError:
return state.to_dict()
if action.kind == SET_FIGURES:
state.layers.figures = action.payload
elif action.kind == ON_ADD:
state.layers.mode.state = "add"
elif action.kind == ON_CLOSE:
row_index = action.payload
try:
layer_index = sorted(state.layers.index.keys())[row_index]
del state.layers.index[layer_index]
except IndexError:
pass
elif action.kind == ON_EDIT:
row_index = action.payload
layer_index = sorted(state.layers.index.keys())[row_index]
state.layers.mode.state = "edit"
state.layers.mode.index = layer_index
elif action.kind == SAVE_LAYER:
# NOTE: Layer index is stored in payload
layer_index = action.payload["index"]
settings = action.payload["settings"]
if layer_index in state.layers.index:
state.layers.index[layer_index].update(settings)
else:
state.layers.index[layer_index] = settings
elif action.kind == SET_ACTIVE:
active = action.payload["active"]
row_index = action.payload["row_index"]
row_to_layer = sorted(state.layers.index.keys())
try:
layer_index = row_to_layer[row_index]
state.layers.index[layer_index]["active"] = active
except IndexError:
pass
return state.to_dict()
def reducer(state, action):
"""Add HTML loaded action to state"""
if isinstance(action, dict):
try:
action = forest.actions.Action.from_dict(action)
except TypeError:
# TODO: Remove try/except when Actions are supported
return state
if isinstance(state, dict):
state = forest.state.State.from_dict(state)
if action.kind == forest.actions.HTML_LOADED:
state.bokeh.html_loaded = True
return state.to_dict()
def borders_reducer(state, action):
"""Configure borders, coastlines and lakes"""
if isinstance(action, dict):
try:
action = actions.Action.from_dict(action)
except TypeError:
# TODO: Support Action throughout codebase
return state
# Reduce state.borders
if isinstance(state, dict):
state = forest.state.State.from_dict(state)
if action.kind == actions.SET_BORDERS_VISIBLE:
state.borders.visible = action.payload
elif action.kind == actions.SET_BORDERS_LINE_COLOR:
state.borders.line_color = action.payload
return state.to_dict()
def render_id(self, state, layer_id):
"""Render layer settings"""
if isinstance(state, dict):
state = forest.state.State.from_dict()
if layer_id in state.layers.index:
spec = LayerSpec(**state.layers.index[layer_id])
if spec.dataset == "":
return
self.visible.active = spec.active
# Layer-specific state
layer_state = {}
layer_state.update(state.to_dict())
if spec.variable != "":
layer_state.update(variable=spec.variable,
colorbar=spec.colorbar)
self.map_view.render(layer_state)