node-red-contrib-jwht-map/worldmap/leaflet/leaflet.measurecontrol.js
2019-03-11 21:08:53 +00:00

2 lines
3.0 KiB
JavaScript

(function(factory,window){if(typeof define==="function"&&define.amd){define(["leaflet"],function(L){factory(L,window.toGeoJSON)})}else if(typeof exports==="object"){module.exports=function(L){if(L===undefined){if(typeof window!=="undefined"){L=require("leaflet")}}factory(L);return L}}else if(typeof window!=="undefined"&&window.L){factory(window.L)}})(function(L){L.Polyline.Measure=L.Draw.Polyline.extend({addHooks:function(){L.Draw.Polyline.prototype.addHooks.call(this);if(this._map){this._markerGroup=new L.LayerGroup;this._map.addLayer(this._markerGroup);this._markers=[];this._map.on("click",this._onClick,this);this._startShape()}},removeHooks:function(){L.Draw.Polyline.prototype.removeHooks.call(this);this._clearHideErrorTimeout();this._map.off("pointermove",this._onMouseMove,this).off("mousemove",this._onMouseMove,this).off("click",this._onClick,this);this._clearGuides();this._container.style.cursor="";this._removeShape()},_startShape:function(){this._drawing=true;this._poly=new L.Polyline([],this.options.shapeOptions);this._poly._onClick=function(){};this._container.style.cursor="crosshair";this._updateTooltip();this._map.on("pointermove",this._onMouseMove,this).on("mousemove",this._onMouseMove,this)},_finishShape:function(){this._drawing=false;this._cleanUpShape();this._clearGuides();this._updateTooltip();this._map.off("pointermove",this._onMouseMove,this).off("mousemove",this._onMouseMove,this);this._container.style.cursor=""},_removeShape:function(){if(!this._poly)return;this._map.removeLayer(this._poly);delete this._poly;this._markers.splice(0);this._markerGroup.clearLayers()},_onClick:function(){if(!this._drawing){this._removeShape();this._startShape();return}},_getTooltipText:function(){var labelText=L.Draw.Polyline.prototype._getTooltipText.call(this);if(!this._drawing){labelText.text=""}return labelText}});L.Control.MeasureControl=L.Control.extend({statics:{TITLE:"Measure distances"},options:{position:"topleft",handler:{}},toggle:function(){if(this.handler.enabled()){this.handler.disable.call(this.handler)}else{this.handler.enable.call(this.handler)}},onAdd:function(map){var link=null;var className="leaflet-control-draw";this._container=L.DomUtil.create("div","leaflet-bar");this.handler=new L.Polyline.Measure(map,this.options.handler);this.handler.on("enabled",function(){this.enabled=true;L.DomUtil.addClass(this._container,"enabled")},this);this.handler.on("disabled",function(){delete this.enabled;L.DomUtil.removeClass(this._container,"enabled")},this);link=L.DomUtil.create("a",className+"-measure",this._container);link.href="#";link.title=L.Control.MeasureControl.TITLE;L.DomEvent.addListener(link,"click",L.DomEvent.stopPropagation).addListener(link,"click",L.DomEvent.preventDefault).addListener(link,"click",this.toggle,this);return this._container}});L.Map.mergeOptions({measureControl:false});L.Map.addInitHook(function(){if(this.options.measureControl){this.measureControl=L.Control.measureControl().addTo(this)}});L.Control.measureControl=function(options){return new L.Control.MeasureControl(options)}},window);