diff --git a/app/static/app/js/classes/TempLayer.js b/app/static/app/js/classes/TempLayer.js new file mode 100644 index 00000000..1a11827f --- /dev/null +++ b/app/static/app/js/classes/TempLayer.js @@ -0,0 +1,99 @@ +import shp from 'shpjs'; +import Spinner from 'spin'; + +export function addTempLayer(file, _this) { + let maxSize = 5242880; + + //random color for each feature + let getColor = () => { + return 'rgb(' + (Math.floor(Math.random() * 256)) + ',' + (Math.floor(Math.random() * 256)) + ',' + (Math.floor(Math.random() * 256)) + ')'; + } + + //notifications on top + let writeMessage = (_err) => { + _this.setState({ error: _err.message || JSON.stringify(_err) }); + spinner.stop(); + } + + //show wait spinner + var spinner = new Spinner({ color: '#fff', lines: 12 }).spin(_this.map._container); + + if (file && file.size > maxSize) { + let err = {}; + err.message = file.name + " is bigger than 5 MB."; + writeMessage(err); + } else { + //get just the first file + //file = file[0]; + let reader = new FileReader(); + let isZipFile = file.name.slice(-3) === 'zip'; + if (isZipFile) { + //zipped shapefile + reader.onload = function () { + if (reader.readyState != 2 || reader.error) { + return; + } else { + shp(reader.result).then(function (geojson) { + addLayer(geojson); + }).catch(function (err) { + err.message = "Not a proper zipped shapefile " + file.name; + writeMessage(err); + }) + } + } + reader.readAsArrayBuffer(file); + } else { + //geojson file + reader.onload = function () { + try { + let geojson = JSON.parse(reader.result); + addLayer(geojson); + } catch (err) { + err.message = "Not a proper json file " + file.name; + writeMessage(err); + } + } + reader.readAsText(file); + } + } + + let addLayer = (_geojson) => { + let tempLayer = + L.geoJson(_geojson, { + style: function (feature) { + return { + opacity: 1, + fillOpacity: 0.7, + color: getColor() + } + }, + //for point layers + pointToLayer: function (feature, latlng) { + return L.circleMarker(latlng, { + radius: 6, + color: getColor(), + opacity: 1, + fillOpacity: 0.7 + }); + }, + // + onEachFeature: function (feature, layer) { + if (feature.properties) { + if (feature.properties) { + layer.bindPopup(Object.keys(feature.properties).map(function (k) { + return k + ": " + feature.properties[k]; + }).join("
"), { + maxHeight: 200 + }); + } + } + } + }); + tempLayer.addTo(_this.map); + //add layer to layer switcher with file name + _this.autolayers.addOverlay(tempLayer, file.name); + //zoom to all features + _this.map.fitBounds(tempLayer.getBounds()); + spinner.stop(); + } +} \ No newline at end of file diff --git a/app/static/app/js/components/Map.jsx b/app/static/app/js/components/Map.jsx index 923cb2a8..2f3989b7 100644 --- a/app/static/app/js/components/Map.jsx +++ b/app/static/app/js/components/Map.jsx @@ -7,11 +7,13 @@ import '../vendor/leaflet/L.Control.MousePosition.css'; import '../vendor/leaflet/L.Control.MousePosition'; import '../vendor/leaflet/Leaflet.Autolayers/css/leaflet.auto-layers.css'; import '../vendor/leaflet/Leaflet.Autolayers/leaflet-autolayers'; +import Dropzone from '../vendor/dropzone'; import $ from 'jquery'; import ErrorMessage from './ErrorMessage'; import SwitchModeButton from './SwitchModeButton'; import ShareButton from './ShareButton'; import AssetDownloads from '../classes/AssetDownloads'; +import {addTempLayer} from '../classes/TempLayer'; import PropTypes from 'prop-types'; import PluginsAPI from '../classes/plugins/API'; import Basemaps from '../classes/Basemaps'; @@ -172,6 +174,15 @@ class Map extends React.Component { } componentDidMount() { + var thisComponent = this; + var mapTempLayerDrop = new Dropzone(this.container, {url : "/", clickable : false}); + mapTempLayerDrop.on("addedfile", function(file) { + addTempLayer(file, thisComponent); + }); + mapTempLayerDrop.on("error", function(file) { + mapTempLayerDrop.removeFile(file); + }); + const { showBackground, tiles } = this.props; this.map = Leaflet.map(this.container, { diff --git a/package.json b/package.json index 39e85e8b..c5fa2818 100644 --- a/package.json +++ b/package.json @@ -56,7 +56,9 @@ "react-test-renderer": "^15.6.1", "regenerator-runtime": "^0.11.0", "sass-loader": "^7.0.3", + "shpjs": "^3.4.2", "sinon": "^4.0.0", + "spin": "0.0.1", "statuses": "^1.3.1", "style-loader": "^0.13.1", "tween.js": "^16.6.0",