mirror of
https://github.com/FoggedLens/iD.git
synced 2026-02-14 17:52:55 +00:00
558 lines
15 KiB
JavaScript
558 lines
15 KiB
JavaScript
import _debounce from 'lodash-es/debounce';
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import { dispatch as d3_dispatch } from 'd3-dispatch';
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import { json as d3_json } from 'd3-fetch';
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import { select as d3_select } from 'd3-selection';
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import { t, currentLocale, addTranslation, setLocale } from '../util/locale';
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import { coreHistory } from './history';
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import { coreValidator } from './validator';
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import { dataLocales, dataEn } from '../../data';
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import { geoRawMercator } from '../geo/raw_mercator';
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import { modeSelect } from '../modes/select';
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import { osmSetAreaKeys, osmSetPointTags, osmSetVertexTags } from '../osm/tags';
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import { presetIndex } from '../presets';
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import { rendererBackground, rendererFeatures, rendererMap, rendererPhotos } from '../renderer';
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import { services } from '../services';
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import { uiInit } from '../ui/init';
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import { utilDetect } from '../util/detect';
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import { utilKeybinding, utilRebind, utilStringQs } from '../util';
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export function coreContext() {
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const dispatch = d3_dispatch('enter', 'exit', 'change');
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let context = utilRebind({}, dispatch, 'on');
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let _deferred = new Set();
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context.version = '2.17.1';
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context.privacyVersion = '20191217';
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// create a special translation that contains the keys in place of the strings
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let tkeys = JSON.parse(JSON.stringify(dataEn)); // clone deep
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let parents = [];
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function traverser(v, k, obj) {
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parents.push(k);
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if (typeof v === 'object') {
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forOwn(v, traverser);
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} else if (typeof v === 'string') {
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obj[k] = parents.join('.');
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}
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parents.pop();
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}
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function forOwn(obj, fn) {
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Object.keys(obj).forEach(k => fn(obj[k], k, obj));
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}
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forOwn(tkeys, traverser);
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addTranslation('_tkeys_', tkeys);
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addTranslation('en', dataEn);
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setLocale('en');
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// https://github.com/openstreetmap/iD/issues/772
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// http://mathiasbynens.be/notes/localstorage-pattern#comment-9
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let storage;
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try { storage = localStorage; } catch (e) {} // eslint-disable-line no-empty
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storage = storage || (() => {
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let s = {};
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return {
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getItem: (k) => s[k],
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setItem: (k, v) => s[k] = v,
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removeItem: (k) => delete s[k]
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};
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})();
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context.storage = function(k, v) {
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try {
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if (arguments.length === 1) return storage.getItem(k);
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else if (v === null) storage.removeItem(k);
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else storage.setItem(k, v);
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} catch (e) {
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/* eslint-disable no-console */
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if (typeof console !== 'undefined') {
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console.error('localStorage quota exceeded');
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}
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/* eslint-enable no-console */
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}
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};
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/* User interface and keybinding */
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let ui;
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context.ui = () => ui;
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let keybinding = utilKeybinding('context');
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context.keybinding = () => keybinding;
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d3_select(document).call(keybinding);
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/* Straight accessors. Avoid using these if you can. */
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let connection, history, validator;
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context.connection = () => connection;
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context.history = () => history;
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context.validator = () => validator;
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/* Connection */
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context.preauth = (options) => {
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if (connection) {
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connection.switch(options);
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}
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return context;
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};
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function afterLoad(cid, callback) {
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return (err, result) => {
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if (err) {
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// 400 Bad Request, 401 Unauthorized, 403 Forbidden..
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if (err.status === 400 || err.status === 401 || err.status === 403) {
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if (connection) {
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connection.logout();
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}
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}
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if (typeof callback === 'function') {
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callback(err);
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}
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return;
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} else if (connection && connection.getConnectionId() !== cid) {
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if (typeof callback === 'function') {
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callback({ message: 'Connection Switched', status: -1 });
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}
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return;
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} else {
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history.merge(result.data, result.extent);
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if (typeof callback === 'function') {
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callback(err, result);
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}
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return;
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}
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};
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}
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context.loadTiles = (projection, callback) => {
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const handle = window.requestIdleCallback(() => {
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_deferred.delete(handle);
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if (connection && context.editableDataEnabled()) {
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const cid = connection.getConnectionId();
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connection.loadTiles(projection, afterLoad(cid, callback));
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}
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});
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_deferred.add(handle);
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};
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context.loadTileAtLoc = (loc, callback) => {
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const handle = window.requestIdleCallback(() => {
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_deferred.delete(handle);
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if (connection && context.editableDataEnabled()) {
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const cid = connection.getConnectionId();
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connection.loadTileAtLoc(loc, afterLoad(cid, callback));
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}
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});
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_deferred.add(handle);
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};
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context.loadEntity = (entityID, callback) => {
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if (connection) {
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const cid = connection.getConnectionId();
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connection.loadEntity(entityID, afterLoad(cid, callback));
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}
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};
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context.zoomToEntity = (entityID, zoomTo) => {
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if (zoomTo !== false) {
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this.loadEntity(entityID, (err, result) => {
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if (err) return;
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const entity = result.data.find(e => e.id === entityID);
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if (entity) {
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map.zoomTo(entity);
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}
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});
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}
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map.on('drawn.zoomToEntity', () => {
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if (!context.hasEntity(entityID)) return;
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map.on('drawn.zoomToEntity', null);
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context.on('enter.zoomToEntity', null);
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context.enter(modeSelect(context, [entityID]));
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});
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context.on('enter.zoomToEntity', () => {
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if (mode.id !== 'browse') {
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map.on('drawn.zoomToEntity', null);
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context.on('enter.zoomToEntity', null);
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}
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});
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};
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let minEditableZoom = 16;
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context.minEditableZoom = function(val) {
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if (!arguments.length) return minEditableZoom;
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minEditableZoom = val;
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if (connection) {
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connection.tileZoom(val);
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}
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return context;
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};
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/* History */
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let inIntro = false;
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context.inIntro = function(val) {
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if (!arguments.length) return inIntro;
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inIntro = val;
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return context;
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};
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context.save = () => {
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// no history save, no message onbeforeunload
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if (inIntro || d3_select('.modal').size()) return;
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let canSave;
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if (mode && mode.id === 'save') {
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canSave = false;
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// Attempt to prevent user from creating duplicate changes - see #5200
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if (services.osm && services.osm.isChangesetInflight()) {
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history.clearSaved();
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return;
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}
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} else {
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canSave = context.selectedIDs().every(id => {
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const entity = context.hasEntity(id);
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return entity && !entity.isDegenerate();
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});
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}
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if (canSave) {
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history.save();
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}
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if (history.hasChanges()) {
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return t('save.unsaved_changes');
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}
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};
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/* Graph */
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context.hasEntity = (id) => history.graph().hasEntity(id);
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context.entity = (id) => history.graph().entity(id);
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context.childNodes = (way) => history.graph().childNodes(way);
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context.geometry = (id) => context.entity(id).geometry(history.graph());
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/* Modes */
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let mode;
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context.mode = () => mode;
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context.enter = (newMode) => {
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if (mode) {
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mode.exit();
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dispatch.call('exit', this, mode);
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}
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mode = newMode;
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mode.enter();
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dispatch.call('enter', this, mode);
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};
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context.selectedIDs = () => (mode && mode.selectedIDs && mode.selectedIDs()) || [];
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context.activeID = () => mode && mode.activeID && mode.activeID();
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let _selectedNoteID;
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context.selectedNoteID = function(noteID) {
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if (!arguments.length) return _selectedNoteID;
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_selectedNoteID = noteID;
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return context;
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};
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let _selectedErrorID;
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context.selectedErrorID = function(errorID) {
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if (!arguments.length) return _selectedErrorID;
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_selectedErrorID = errorID;
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return context;
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};
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/* Behaviors */
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context.install = (behavior) => context.surface().call(behavior);
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context.uninstall = (behavior) => context.surface().call(behavior.off);
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/* Copy/Paste */
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let copyGraph;
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context.copyGraph = () => copyGraph;
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let copyIDs = [];
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context.copyIDs = function(val) {
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if (!arguments.length) return copyIDs;
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copyIDs = val;
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copyGraph = history.graph();
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return context;
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};
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/* Background */
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let background;
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context.background = () => background;
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/* Features */
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let features;
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context.features = () => features;
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context.hasHiddenConnections = (id) => {
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const graph = history.graph();
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const entity = graph.entity(id);
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return features.hasHiddenConnections(entity, graph);
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};
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/* Photos */
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let photos;
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context.photos = () => photos;
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/* Presets */
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let presets;
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context.presets = () => presets;
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/* Map */
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let map;
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context.map = () => map;
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context.layers = () => map.layers;
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context.surface = () => map.surface;
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context.editableDataEnabled = () => map.editableDataEnabled();
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context.surfaceRect = () => map.surface.node().getBoundingClientRect();
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context.editable = () => {
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// don't allow editing during save
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const mode = context.mode();
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if (!mode || mode.id === 'save') return false;
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return map.editableDataEnabled();
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};
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/* Debug */
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let debugFlags = {
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tile: false, // tile boundaries
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collision: false, // label collision bounding boxes
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imagery: false, // imagery bounding polygons
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community: false, // community bounding polygons
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imperial: false, // imperial (not metric) bounding polygons
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driveLeft: false, // driveLeft bounding polygons
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target: false, // touch targets
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downloaded: false // downloaded data from osm
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};
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context.debugFlags = () => debugFlags;
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context.getDebug = (flag) => flag && debugFlags[flag];
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context.setDebug = function(flag, val) {
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if (arguments.length === 1) val = true;
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debugFlags[flag] = val;
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dispatch.call('change');
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return context;
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};
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/* Container */
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let container = d3_select(document.body);
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context.container = function(val) {
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if (!arguments.length) return container;
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container = val;
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container.classed('id-container', true);
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return context;
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};
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let embed;
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context.embed = function(val) {
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if (!arguments.length) return embed;
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embed = val;
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return context;
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};
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/* Assets */
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let assetPath = '';
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context.assetPath = function(val) {
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if (!arguments.length) return assetPath;
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assetPath = val;
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return context;
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};
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let assetMap = {};
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context.assetMap = function(val) {
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if (!arguments.length) return assetMap;
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assetMap = val;
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return context;
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};
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context.asset = (val) => {
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const filename = assetPath + val;
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return assetMap[filename] || filename;
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};
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context.imagePath = (val) => context.asset(`img/${val}`);
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/* locales */
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// `locale` letiable contains a "requested locale".
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// It won't become the `currentLocale` until after loadLocale() is called.
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let locale, localePath;
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context.locale = function(loc, path) {
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if (!arguments.length) return currentLocale;
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locale = loc;
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localePath = path;
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return context;
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};
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context.loadLocale = (callback) => {
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if (locale && locale !== 'en' && dataLocales.hasOwnProperty(locale)) {
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localePath = localePath || context.asset(`locales/${locale}.json`);
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d3_json(localePath)
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.then(result => {
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addTranslation(locale, result[locale]);
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setLocale(locale);
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utilDetect(true);
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if (callback) callback();
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})
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.catch(err => {
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if (callback) callback(err.message);
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});
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} else {
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if (locale) {
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setLocale(locale);
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utilDetect(true);
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}
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if (callback) callback();
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}
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};
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/* reset (aka flush) */
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context.reset = context.flush = () => {
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context.debouncedSave.cancel();
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Array.from(_deferred).forEach(handle => {
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window.cancelIdleCallback(handle);
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_deferred.delete(handle);
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});
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Object.values(services).forEach(service => {
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if (service && typeof service.reset === 'function') {
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service.reset(context);
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}
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});
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validator.reset();
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features.reset();
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history.reset();
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return context;
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};
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/* Init */
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context.projection = geoRawMercator();
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context.curtainProjection = geoRawMercator();
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locale = utilDetect().locale;
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if (locale && !dataLocales.hasOwnProperty(locale)) {
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locale = locale.split('-')[0];
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}
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history = coreHistory(context);
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validator = coreValidator(context);
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context.graph = history.graph;
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context.changes = history.changes;
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context.intersects = history.intersects;
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context.pauseChangeDispatch = history.pauseChangeDispatch;
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context.resumeChangeDispatch = history.resumeChangeDispatch;
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// Debounce save, since it's a synchronous localStorage write,
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// and history changes can happen frequently (e.g. when dragging).
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context.debouncedSave = _debounce(context.save, 350);
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function withDebouncedSave(fn) {
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return function() {
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const result = fn.apply(history, arguments);
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context.debouncedSave();
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return result;
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};
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}
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context.perform = withDebouncedSave(history.perform);
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context.replace = withDebouncedSave(history.replace);
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context.pop = withDebouncedSave(history.pop);
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context.overwrite = withDebouncedSave(history.overwrite);
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context.undo = withDebouncedSave(history.undo);
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context.redo = withDebouncedSave(history.redo);
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ui = uiInit(context);
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connection = services.osm;
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background = rendererBackground(context);
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features = rendererFeatures(context);
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photos = rendererPhotos(context);
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presets = presetIndex(context);
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const hash = utilStringQs(window.location.hash);
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if (services.maprules && hash.maprules) {
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d3_json(hash.maprules)
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.then(mapcss => {
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services.maprules.init();
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mapcss.forEach(mapcssSelector => services.maprules.addRule(mapcssSelector));
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})
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.catch(() => { /* ignore */ });
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}
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map = rendererMap(context);
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context.mouse = map.mouse;
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context.extent = map.extent;
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context.pan = map.pan;
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context.zoomIn = map.zoomIn;
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context.zoomOut = map.zoomOut;
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context.zoomInFurther = map.zoomInFurther;
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context.zoomOutFurther = map.zoomOutFurther;
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context.redrawEnable = map.redrawEnable;
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Object.values(services).forEach(service => {
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if (service && typeof service.init === 'function') {
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service.init(context);
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}
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});
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validator.init();
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background.init();
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features.init();
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photos.init();
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let presetsParameter = hash.presets;
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if (presetsParameter && presetsParameter.indexOf('://') !== -1) {
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// a URL of external presets file
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presets.fromExternal(external, (externalPresets) => {
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context.presets = () => externalPresets; // default + external presets...
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osmSetAreaKeys(presets.areaKeys());
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osmSetPointTags(presets.pointTags());
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osmSetVertexTags(presets.vertexTags());
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});
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} else {
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let addablePresetIDs;
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if (presetsParameter) {
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// a list of allowed preset IDs
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addablePresetIDs = presetsParameter.split(',');
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}
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presets.init(addablePresetIDs);
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osmSetAreaKeys(presets.areaKeys());
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osmSetPointTags(presets.pointTags());
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osmSetVertexTags(presets.vertexTags());
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}
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return context;
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}
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