82 lines
2.9 KiB
JavaScript
82 lines
2.9 KiB
JavaScript
/*
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* Copyright (C) 2020 Daniel Friesel
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*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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$(document).ready(function() {
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function getPlaceholder() {
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return $('div.geolocation div.progress');
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}
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var showError = function(header, message, code) {
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getPlaceholder().remove();
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var errnode = $(document.createElement('div'));
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errnode.attr('class', 'error');
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errnode.text(message);
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var headnode = $(document.createElement('strong'));
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headnode.text(header);
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errnode.prepend(headnode);
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$('div.geolocation').append(errnode);
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};
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var processResult = function(data) {
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if (data.error) {
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showError('Backend-Fehler:', data.error, null);
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} else if (data.candidates.length == 0) {
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showError('Keine Bahnhöfe in 70km Umkreis gefunden', '', null);
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} else {
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const res = $(document.createElement('p'));
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$.each(data.candidates, function(i, candidate) {
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const ds100 = candidate.ds100,
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name = candidate.name,
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distance = candidate.distance.toFixed(1);
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res.append($('<a class="tablerow" href="/s/' + ds100 + '"><span>' + name + '</span></a>'));
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});
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getPlaceholder().replaceWith(res);
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}
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};
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var processLocation = function(loc) {
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$.post('/geolocation', {lon: loc.coords.longitude, lat: loc.coords.latitude}, processResult);
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};
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var processError = function(error) {
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if (error.code == error.PERMISSION_DENIED) {
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showError('Standortanfrage nicht möglich.', 'Vermutlich fehlen die Rechte im Browser oder der Android Location Service ist deaktiviert.', 'geolocation.error.PERMISSION_DENIED');
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} else if (error.code == error.POSITION_UNAVAILABLE) {
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showError('Standort konnte nicht ermittelt werden', '(Service nicht verfügbar)', 'geolocation.error.POSITION_UNAVAILABLE');
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} else if (error.code == error.TIMEOUT) {
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showError('Standort konnte nicht ermittelt werden', '(Timeout)', 'geolocation.error.TIMEOUT');
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} else {
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showError('Standort konnte nicht ermittelt werden', '(unbekannter Fehler)', 'unknown geolocation.error code');
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}
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};
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var geoLocationButton = $('div.geolocation > button');
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var getGeoLocation = function() {
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geoLocationButton.replaceWith($('<p class="geolocationhint">Stationen in der Umgebung:</p><div class="progress"><div class="indeterminate"></div></div>'));
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navigator.geolocation.getCurrentPosition(processLocation, processError);
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}
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if (geoLocationButton.length) {
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if (navigator.geolocation) {
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if (navigator.permissions) {
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navigator.permissions.query({ name:'geolocation' }).then(function(value) {
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if (value.state === 'prompt') {
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geoLocationButton.on('click', getGeoLocation);
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} else {
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// User either rejected or granted permission. User wont get prompted and we can show stations/error
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getGeoLocation();
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}
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});
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} else {
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geoLocationButton.on('click', getGeoLocation);
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}
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} else {
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showError('Standortanfragen werden von diesem Browser nicht unterstützt', '', null);
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}
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}
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});
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