qwc2/plugins/map/SnapSupport.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 _createForOfIteratorHelper(r,e){var t="undefined"!=typeof Symbol&&r[Symbol.iterator]||r["@@iterator"];if(!t){if(Array.isArray(r)||(t=_unsupportedIterableToArray(r))||e&&r&&"number"==typeof r.length){t&&(r=t);var _n=0,F=function F(){};return{s:F,n:function n(){return _n>=r.length?{done:!0}:{done:!1,value:r[_n++]}},e:function e(r){throw r},f:F}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var o,a=!0,u=!1;return{s:function s(){t=t.call(r)},n:function n(){var r=t.next();return a=r.done,r},e:function e(r){u=!0,o=r},f:function f(){try{a||null==t["return"]||t["return"]()}finally{if(u)throw o}}}}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 _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 2019, norBIT GmbH.
 * 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 axios from"axios";import ol from"openlayers";import PropTypes from"prop-types";import{v4 as uuidv4}from"uuid";import{LayerRole}from"../../actions/layers";import FeatureStyles from"../../utils/FeatureStyles";import IdentifyUtils from"../../utils/IdentifyUtils";import MapUtils from"../../utils/MapUtils";var SnapSupport=/*#__PURE__*/function(_React$Component){function SnapSupport(props){var _this;_classCallCheck(this,SnapSupport);_this=_callSuper(this,SnapSupport,[props]);_defineProperty(_this,"state",{mousePos:null});_defineProperty(_this,"getMapMousePos",function(ev){_this.setState({mousePos:{coordinate:ev.coordinate,pixel:ev.pixel}})});_defineProperty(_this,"addSnapFeatures",function(geojson){_this.reset();var format=new ol.format.GeoJSON;var features=format.readFeatures(geojson);var _iterator=_createForOfIteratorHelper(features),_step;try{for(_iterator.s();!(_step=_iterator.n()).done;){var feature=_step.value;_this.snapSource.addFeature(feature)}}catch(err){_iterator.e(err)}finally{_iterator.f()}});_defineProperty(_this,"addSnapInteraction",function(){_this.snapInteraction=new ol.interaction.Snap({source:_this.snapSource});_this.props.map.addInteraction(_this.snapInteraction)});_defineProperty(_this,"getFeature",function(){_this.timeoutId=null;var layers=_this.props.layers.find(function(layer){return layer.role===LayerRole.THEME});var queryLayers=_this.props.layers.reduce(function(accum,layer){return layer.role===LayerRole.THEME?accum.concat(layer.queryLayers):accum},[]).join(",");if(!layers||!queryLayers){return}var options={info_format:"text/xml",feature_count:20,FI_POINT_TOLERANCE:16,FI_LINE_TOLERANCE:8,FI_POLYGON_TOLERANCE:4};var request=IdentifyUtils.buildRequest(layers,queryLayers,_this.state.mousePos.coordinate,_this.props.mapObj,options);axios.get(request.url,{params:request.params}).then(function(response){var results=IdentifyUtils.parseXmlResponse(response.data,_this.props.mapObj.projection,layers);var features=[];results.forEach(function(result){var _iterator2=_createForOfIteratorHelper(result),_step2;try{for(_iterator2.s();!(_step2=_iterator2.n()).done;){var feature=_step2.value;if(feature.geometry){feature.id=uuidv4();features.push(feature)}}}catch(err){_iterator2.e(err)}finally{_iterator2.f()}});if(!features){return}var geojson={type:"FeatureCollection",crs:{type:"name",properties:{name:_this.props.mapObj.projection}},features:features};_this.addSnapFeatures(geojson);_this.addSnapInteraction()})});_defineProperty(_this,"reset",function(){if(_this.snapInteractions){_this.props.map.removeInteraction(_this.snapInteraction)}var _iterator3=_createForOfIteratorHelper(_this.snapSource.getFeatures()),_step3;try{for(_iterator3.s();!(_step3=_iterator3.n()).done;){var feature=_step3.value;_this.snapSource.removeFeature(feature)}}catch(err){_iterator3.e(err)}finally{_iterator3.f()}});var geometryFunction=function geometryFunction(feature){if(feature.getGeometry().getType()==="Point"){return new ol.geom.MultiPoint([feature.getGeometry().getCoordinates()])}else if(feature.getGeometry().getType()==="LineString"){return new ol.geom.MultiPoint(feature.getGeometry().getCoordinates())}return new ol.geom.MultiPoint(feature.getGeometry().getCoordinates()[0])};_this.snapSource=new ol.source.Vector;_this.snapLayer=new ol.layer.Vector({source:_this.snapSource,zIndex:1000000,style:[FeatureStyles.interaction({},true),FeatureStyles.interactionVertex({geometryFunction:geometryFunction},true)]});_this.props.map.addLayer(_this.snapLayer);_this.curPos=null;return _this}_inherits(SnapSupport,_React$Component);return _createClass(SnapSupport,[{key:"componentDidMount",value:function componentDidMount(){MapUtils.getHook(MapUtils.ADD_POINTER_MOVE_LISTENER)(this.getMapMousePos)}},{key:"componentWillUnmount",value:function componentWillUnmount(){MapUtils.getHook(MapUtils.REMOVE_POINTER_MOVE_LISTENER)(this.getMapMousePos)}},{key:"componentDidUpdate",value:function componentDidUpdate(prevProps){var _this2=this;if(this.props.drawing&&this.state.mousePos&&(!this.curPos||Math.abs(this.state.mousePos.pixel[0]-this.curPos[0])>5||Math.abs(this.state.mousePos.pixel[1]-this.curPos[1])>5)){clearTimeout(this.timeoutId);this.curPos=this.state.mousePos.pixel;this.timeoutId=setTimeout(function(){return _this2.getFeature()},500)}else if(!this.props.drawing&&prevProps.drawing){this.reset()}}},{key:"render",value:function render(){return null}}])}(React.Component);_defineProperty(SnapSupport,"propTypes",{drawing:PropTypes.bool,layers:PropTypes.array,map:PropTypes.object,mapObj:PropTypes.object});var selector=function selector(state){return{drawing:["Redlining","Measure","Editing"].includes(state.task.id),mapObj:state.map,layers:state.layers.flat}};export default connect(selector,{})(SnapSupport);