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from ..core import Evented
import logging
from abc import abstractmethod
class Layer(Evented):
# layerId is a static variable shared between all layers
# It is used to give unique names to layers
layerId = 0
@property
def layerName(self):
return self._layerName
@layerName.setter
def layerName(self, name):
self._layerName = name
@property
def jsName(self):
return self._layerName
@property
def map(self):
return self._map
@map.setter
def map(self, map_):
self._map = map_
@abstractmethod
def _initJs(self):
raise NotImplemented
def runJavaScriptForMapIndex(self, js):
if self._map is not None:
self.runJavaScript(js, self._map.mapWidgetIndex)
def getJsResponseForMapIndex(self, js, callback):
if self._map is not None:
self.getJsResponse(js, self._map.mapWidgetIndex, callback)
def __init__(self):
super().__init__()
self._map = None
self._layerName = self._getNewLayerName()
self._log = logging.getLogger(f"layer_{self._layerName}")
self._popup = None
self._popupOptions = None
self._tooltip = None
self._tooltipOptions = None
def _initPopupAndTooltip(self):
if self._popup is not None:
self._bindPopupOrTooltip("Popup", self._popup, self._popupOptions)
if self._tooltip is not None:
self._bindPopupOrTooltip("Tooltip", self._tooltip, self._tooltipOptions)
def _bindPopupOrTooltip(self, kind, content, options):
js = f'{self._layerName}.bind{kind}("{content}"'
if options is not None:
js += f', {self._stringifyForJs(options)}'
js += ')'
self.runJavaScriptForMapIndex(js)
def _getNewLayerName(self):
layerName = 'l{}'.format(self.layerId)
Layer.layerId += 1
return layerName
def addTo(self, map_):
map_.addLayer(self)
return self
def removeFrom(self, map_):
map_.removeLayer(self)
return self
def bindPopup(self, content, options=None):
self._popup = content
self._popupOptions = options
self._bindPopupOrTooltip("Popup", self._popup, self._popupOptions)
return self
def unbindPopup(self):
self._popup = None
self._popupOptions = None
js = '{layerName}.unbindPopup()'.format(layerName=self._layerName)
self.runJavaScriptForMapIndex(js)
return self
def bindTooltip(self, content, options=None):
self._tooltip = content
self._tooltipOptions = options
self._bindPopupOrTooltip("Tooltip", self._tooltip, self._tooltipOptions)
return self
def unbindTooltip(self):
self._tooltip = None
self._tooltipOptions = None
js = '{layerName}.unbindTooltip()'.format(layerName=self._layerName)
self.runJavaScriptForMapIndex(js)
return self
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