qwc2/plugins/map/SnappingSupport.js

QGIS Web Client

function _typeof(o){"@babel/helpers - typeof";return _typeof="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(o){return typeof o}:function(o){return o&&"function"==typeof Symbol&&o.constructor===Symbol&&o!==Symbol.prototype?"symbol":typeof o},_typeof(o)}function ownKeys(e,r){var t=Object.keys(e);if(Object.getOwnPropertySymbols){var o=Object.getOwnPropertySymbols(e);r&&(o=o.filter(function(r){return Object.getOwnPropertyDescriptor(e,r).enumerable})),t.push.apply(t,o)}return t}function _objectSpread(e){for(var r=1;r<arguments.length;r++){var t=null!=arguments[r]?arguments[r]:{};r%2?ownKeys(Object(t),!0).forEach(function(r){_defineProperty(e,r,t[r])}):Object.getOwnPropertyDescriptors?Object.defineProperties(e,Object.getOwnPropertyDescriptors(t)):ownKeys(Object(t)).forEach(function(r){Object.defineProperty(e,r,Object.getOwnPropertyDescriptor(t,r))})}return e}function _toConsumableArray(r){return _arrayWithoutHoles(r)||_iterableToArray(r)||_unsupportedIterableToArray(r)||_nonIterableSpread()}function _nonIterableSpread(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}function _unsupportedIterableToArray(r,a){if(r){if("string"==typeof r)return _arrayLikeToArray(r,a);var t={}.toString.call(r).slice(8,-1);return"Object"===t&&r.constructor&&(t=r.constructor.name),"Map"===t||"Set"===t?Array.from(r):"Arguments"===t||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t)?_arrayLikeToArray(r,a):void 0}}function _iterableToArray(r){if("undefined"!=typeof Symbol&&null!=r[Symbol.iterator]||null!=r["@@iterator"])return Array.from(r)}function _arrayWithoutHoles(r){if(Array.isArray(r))return _arrayLikeToArray(r)}function _arrayLikeToArray(r,a){(null==a||a>r.length)&&(a=r.length);for(var e=0,n=Array(a);e<a;e++)n[e]=r[e];return n}function _classCallCheck(a,n){if(!(a instanceof n))throw new TypeError("Cannot call a class as a function")}function _defineProperties(e,r){for(var t=0;t<r.length;t++){var o=r[t];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(e,_toPropertyKey(o.key),o)}}function _createClass(e,r,t){return r&&_defineProperties(e.prototype,r),t&&_defineProperties(e,t),Object.defineProperty(e,"prototype",{writable:!1}),e}function _callSuper(t,o,e){return o=_getPrototypeOf(o),_possibleConstructorReturn(t,_isNativeReflectConstruct()?Reflect.construct(o,e||[],_getPrototypeOf(t).constructor):o.apply(t,e))}function _possibleConstructorReturn(t,e){if(e&&("object"==_typeof(e)||"function"==typeof e))return e;if(void 0!==e)throw new TypeError("Derived constructors may only return object or undefined");return _assertThisInitialized(t)}function _assertThisInitialized(e){if(void 0===e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return e}function _isNativeReflectConstruct(){try{var t=!Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],function(){}))}catch(t){}return(_isNativeReflectConstruct=function _isNativeReflectConstruct(){return!!t})()}function _getPrototypeOf(t){return _getPrototypeOf=Object.setPrototypeOf?Object.getPrototypeOf.bind():function(t){return t.__proto__||Object.getPrototypeOf(t)},_getPrototypeOf(t)}function _inherits(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),Object.defineProperty(t,"prototype",{writable:!1}),e&&_setPrototypeOf(t,e)}function _setPrototypeOf(t,e){return _setPrototypeOf=Object.setPrototypeOf?Object.setPrototypeOf.bind():function(t,e){return t.__proto__=e,t},_setPrototypeOf(t,e)}function _defineProperty(e,r,t){return(r=_toPropertyKey(r))in e?Object.defineProperty(e,r,{value:t,enumerable:!0,configurable:!0,writable:!0}):e[r]=t,e}function _toPropertyKey(t){var i=_toPrimitive(t,"string");return"symbol"==_typeof(i)?i:i+""}function _toPrimitive(t,r){if("object"!=_typeof(t)||!t)return t;var e=t[Symbol.toPrimitive];if(void 0!==e){var i=e.call(t,r||"default");if("object"!=_typeof(i))return i;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===r?String:Number)(t)}/**
 * Copyright 2017-2024 Sourcepole AG
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree.
 */import React from"react";import{connect}from"react-redux";import isEmpty from"lodash.isempty";import ol from"openlayers";import PropTypes from"prop-types";import{v1 as uuidv1}from"uuid";import{LayerRole}from"../../actions/layers";import{setSnappingConfig}from"../../actions/map";import Icon from"../../components/Icon";import Spinner from"../../components/widgets/Spinner";import IdentifyUtils from"../../utils/IdentifyUtils";import LocaleUtils from"../../utils/LocaleUtils";import MapUtils from"../../utils/MapUtils";import VectorLayerUtils from"../../utils/VectorLayerUtils";import SnapInteraction from"./SnapInteraction";import"./style/SnappingSupport.css";/**
 * Snapping support for the map component.
 */var SnappingSupport=/*#__PURE__*/function(_React$Component){function SnappingSupport(props){var _this;_classCallCheck(this,SnappingSupport);_this=_callSuper(this,SnappingSupport,[props]);_defineProperty(_this,"state",{reqId:null,// FeatureInfo request ID
invalid:true,// Whether the feature cache needs to be rebuilt
havesnaplayers:false,// Whether there are any snaplayers
drawing:false// Whether a drawing interaction is active,
});_defineProperty(_this,"snapToEdge",function(snappingConfig){return snappingConfig.active===true||snappingConfig.active==="edge"});_defineProperty(_this,"snapToVertex",function(snappingConfig){return snappingConfig.active===true||snappingConfig.active==="vertex"});_defineProperty(_this,"toggleSnap",function(mode){var active=_this.props.mapObj.snapping.active;if(mode==="edge"){if(active===true){active="vertex"}else if(active==="edge"){active=false}else if(active==="vertex"){active=true}else{active="edge"}}else if(mode==="vertex"){if(active===true){active="edge"}else if(active==="vertex"){active=false}else if(active==="edge"){active=true}else{active="vertex"}}_this.props.setSnappingConfig(true,active)});_defineProperty(_this,"handleInteractionAdded",function(ev){if(_this.inEventHandler){return}_this.inEventHandler=true;_this.addSnapInteractionIfNeeded(ev.target);_this.inEventHandler=false});_defineProperty(_this,"handleInteractionRemoved",function(ev){if(_this.inEventHandler){return}_this.inEventHandler=true;// If the removed interaction is the snap interaction, which should always be
// the last interaction, remove the interaction preceding the snap interaction
if(ev.element===_this.snapInteraction){ev.target.pop()}_this.addSnapInteractionIfNeeded(ev.target);_this.inEventHandler=false});_defineProperty(_this,"addSnapInteractionIfNeeded",function(interactions){// Just to be sure
interactions.remove(_this.snapInteraction);// If there is any draw or modify interaction, add snapping interaction
var added=false;if(_this.props.mapObj.snapping.enabled){for(var i=0;i<interactions.getLength();++i){var interaction=interactions.item(i);if(interaction instanceof ol.interaction.Draw||interaction instanceof ol.interaction.Modify||interaction instanceof ol.interaction.Select){interactions.push(_this.snapInteraction);added=true;break}}}_this.setState({drawing:added})});_defineProperty(_this,"refreshFeatureCache",function(force){if(!_this.state.invalid&&!force||!_this.state.drawing){return}_this.source.clear();var themeLayer=_this.props.layers.find(function(layer){return layer.role===LayerRole.THEME});if(!_this.props.theme||!themeLayer||!_this.state.drawing){return}var snappingConfig=_this.props.theme.snapping||{};// Gather snapping layers based on visibility scale ranges
var scale=MapUtils.computeForZoom(_this.props.mapObj.scales,_this.props.mapObj.zoom);var snapLayers=(snappingConfig.snaplayers||[]).reduce(function(res,cur){if(cur.min!==undefined&&cur.min!==null&&scale<cur.min){// Below scale range
return res}if(cur.max!==undefined&&cur.max!==null&&scale>=cur.max){// Above scale range
return res}return[].concat(_toConsumableArray(res),[cur.name])},[]);// Gather local snap layers
var snapToWfs=scale<snappingConfig.wfsMaxScale;var localLayers=[];_this.props.layers.forEach(function(layer){if(layer.role===LayerRole.USERLAYER&&(layer.type==="vector"||layer.type==="wfs"&&snapToWfs)){var olLayer=_this.props.map.getLayers().getArray().find(function(l){return l.get("id")===layer.id});if(olLayer&&olLayer.getSource()&&olLayer.getSource().getFeaturesInExtent){localLayers.push(olLayer)}}});_this.setState({reqId:null,havesnaplayers:!isEmpty(snapLayers)||!isEmpty(localLayers)});if(!_this.snapInteraction.getMap()||!_this.snapInteraction.getActive()){return}if(snapLayers.length===0){_this.addLocalSnapFeatures(localLayers);return}var xmin=_this.props.mapObj.bbox.bounds[0];var ymin=_this.props.mapObj.bbox.bounds[1];var xmax=_this.props.mapObj.bbox.bounds[2];var ymax=_this.props.mapObj.bbox.bounds[3];var filterGeom=VectorLayerUtils.geoJSONGeomToWkt({type:"Polygon",coordinates:[[[xmin,ymin],[xmax,ymin],[xmax,ymax],[xmin,ymax],[xmin,ymin]]]});var options={LAYERATTRIBS:JSON.stringify(snapLayers.reduce(function(res,key){return _objectSpread(_objectSpread({},res),{},_defineProperty({},key,[]))},{})),with_htmlcontent:false,with_bbox:false,feature_count:snappingConfig.featureCount||500};var request=IdentifyUtils.buildFilterRequest(themeLayer,snapLayers.join(","),filterGeom,_this.props.mapObj,options);var reqId=uuidv1();_this.setState({reqId:reqId});IdentifyUtils.sendRequest(request,function(response){if(_this.state.reqId!==reqId){return}if(response){var result=IdentifyUtils.parseXmlResponse(response,_this.props.mapObj.projection,themeLayer);var features=Object.values(result).reduce(function(res,cur){return[].concat(_toConsumableArray(res),_toConsumableArray(cur))},[]);var format=new ol.format.GeoJSON;var olFeatures=format.readFeatures({type:"FeatureCollection",features:features.map(function(feature){return _objectSpread(_objectSpread({},feature),{},{id:uuidv1()})})});_this.source.addFeatures(olFeatures);// Add features from local layers
_this.addLocalSnapFeatures(localLayers);_this.setState({invalid:false,reqId:null,havesnaplayers:true})}else{_this.setState({reqId:null})}})});_defineProperty(_this,"addLocalSnapFeatures",function(localLayers){var extent=_this.props.mapObj.bbox.bounds;var projection=ol.proj.get(_this.props.mapObj.projection);localLayers.forEach(function(olLayer){var olFeatures=olLayer.getSource().getFeaturesInExtent(extent,projection);_this.source.addFeatures(olFeatures)})});_this.source=new ol.source.Vector;_this.snapInteraction=new SnapInteraction({source:_this.source,edge:_this.snapToEdge(props.mapObj.snapping),vertex:_this.snapToVertex(props.mapObj.snapping)});_this.snapInteraction.setActive(_this.props.mapObj.snapping.active);_this.inEventHandler=false;props.map.getInteractions().on("add",_this.handleInteractionAdded);props.map.getInteractions().on("remove",_this.handleInteractionRemoved);MapUtils.registerHook(MapUtils.GET_SNAPPED_COORDINATES_FROM_PIXEL_HOOK,function(pixel){var coo=props.map.getCoordinateFromPixel(pixel);var snapResult=_this.snapInteraction.snapTo(pixel,coo,props.map);return snapResult?props.map.getCoordinateFromPixel(snapResult.vertexPixel):coo});return _this}_inherits(SnappingSupport,_React$Component);return _createClass(SnappingSupport,[{key:"componentDidUpdate",value:function componentDidUpdate(prevProps,prevState){var _this2=this;if(this.state.drawing&&(this.props.mapObj.bbox!==prevProps.mapObj.bbox||this.props.theme!==prevProps.theme)){this.setState({invalid:true});this.refreshFeatureCache(true)}else if(this.state.drawing&&this.props.layers!==prevProps.layers){var layersChanged=this.props.layers.find(function(layer){if(layer.role===LayerRole.THEME){var prev=prevProps.layers.find(function(prevLayer){return layer.id===prevLayer.id});return!prev||layer.rev!==prev.rev}else if(layer.role===LayerRole.USERLAYER&&layer.type==="vector"){var _prev=prevProps.layers.find(function(prevLayer){return layer.id===prevLayer.id});return!_prev||_prev.features!==layer.features}return false});if(layersChanged){this.setState({invalid:true});// Delay to avoid refreshing the cache before QGIS Server can pick up the new feature
setTimeout(function(){_this2.refreshFeatureCache(true)},1500)}}if(this.props.mapObj.snapping.active!==prevProps.mapObj.snapping.active||this.state.drawing!==prevState.drawing){this.snapInteraction.setActive(this.props.mapObj.snapping.active!==false);this.snapInteraction.setSnapEdge(this.snapToEdge(this.props.mapObj.snapping));this.snapInteraction.setSnapVertex(this.snapToVertex(this.props.mapObj.snapping));if(this.props.mapObj.snapping.active){this.refreshFeatureCache()}}}},{key:"render",value:function render(){var _this3=this;if(!this.state.drawing||!this.props.mapObj.snapping.enabled){return null}var disabled=!this.state.havesnaplayers||this.props.mapObj.snapping.active===false;var toolbarClass=disabled?"snapping-toolbar-inactive":"";var snapEdge=this.snapToEdge(this.props.mapObj.snapping);var snapVertex=this.snapToVertex(this.props.mapObj.snapping);return/*#__PURE__*/React.createElement("div",{className:"snapping-toolbar-container"},/*#__PURE__*/React.createElement("div",{className:toolbarClass},this.state.reqId!==null?/*#__PURE__*/React.createElement(Spinner,null):/*#__PURE__*/React.createElement("span",null,/*#__PURE__*/React.createElement("button",{className:"button"+(snapVertex?" pressed":""),onClick:function onClick(){return _this3.toggleSnap("vertex")},title:LocaleUtils.tr("snapping.vertex")},/*#__PURE__*/React.createElement(Icon,{icon:"snap_vertex",size:"large"})),/*#__PURE__*/React.createElement("button",{className:"button"+(snapEdge?" pressed":""),onClick:function onClick(){return _this3.toggleSnap("edge")},title:LocaleUtils.tr("snapping.edge")},/*#__PURE__*/React.createElement(Icon,{icon:"snap_edge",size:"large"}))),"\xA0",this.state.reqId?LocaleUtils.tr("snapping.loading"):LocaleUtils.tr("snapping.snappingenabled")))}}])}(React.Component);_defineProperty(SnappingSupport,"propTypes",{layers:PropTypes.array,map:PropTypes.object,mapObj:PropTypes.object,setSnappingConfig:PropTypes.func,task:PropTypes.string,theme:PropTypes.object});export default connect(function(state){return{layers:state.layers.flat,mapObj:state.map,task:state.task.id,theme:state.theme.current}},{setSnappingConfig:setSnappingConfig})(SnappingSupport);