Take a unique ID for maps.
I want to be able to share this without giving away my data. The page takes a query parameter map=<ID>, which says which data file to load. If you load the page without a map ID, it makes up a random 8-digit hex string and uses that. The no-selection view shows a link to the map.
This commit is contained in:
Christian Lawson-Perfect
parent
5d69d2cad7
commit
fe963ec2db
6 changed files with 67 additions and 28 deletions
51
app.js
51
app.js
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@ -5160,9 +5160,9 @@ var $elm$core$Task$perform = F2(
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});
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var $elm$browser$Browser$document = _Browser_document;
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var $elm$json$Json$Decode$decodeValue = _Json_run;
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var $author$project$App$Flags = F2(
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function (emoji, markers) {
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return {emoji: emoji, markers: markers};
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var $author$project$App$Flags = F3(
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function (emoji, markers, map_id) {
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return {emoji: emoji, map_id: map_id, markers: markers};
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});
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var $author$project$App$Emoji = F2(
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function (emoji, description) {
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@ -5198,8 +5198,9 @@ var $author$project$App$decode_marker = A5(
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A2($elm$json$Json$Decode$field, 'name', $elm$json$Json$Decode$string),
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A2($elm$json$Json$Decode$field, 'note', $elm$json$Json$Decode$string));
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var $elm$json$Json$Decode$list = _Json_decodeList;
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var $author$project$App$decode_flags = A3(
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$elm$json$Json$Decode$map2,
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var $elm$json$Json$Decode$map3 = _Json_map3;
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var $author$project$App$decode_flags = A4(
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$elm$json$Json$Decode$map3,
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$author$project$App$Flags,
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A2(
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$elm$json$Json$Decode$field,
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@ -5208,7 +5209,8 @@ var $author$project$App$decode_flags = A3(
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A2(
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$elm$json$Json$Decode$field,
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'markers',
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$elm$json$Json$Decode$list($author$project$App$decode_marker)));
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$elm$json$Json$Decode$list($author$project$App$decode_marker)),
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A2($elm$json$Json$Decode$field, 'map_id', $elm$json$Json$Decode$string));
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var $author$project$App$CurrentPositionCentre = {$: 'CurrentPositionCentre'};
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var $author$project$App$NoSelection = {$: 'NoSelection'};
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var $author$project$App$blank_marker = {
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@ -5223,8 +5225,9 @@ var $elm$core$Basics$negate = function (n) {
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var $author$project$App$init_model = {
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accuracy: 0,
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centre: $author$project$App$CurrentPositionCentre,
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current_position: {lat: 55.05155870729228, lon: -1.4652193740914812},
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current_position: {lat: 55.04, lon: -1.46},
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emoji: _List_Nil,
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map_id: '',
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markers: _List_Nil,
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new_marker: $author$project$App$blank_marker,
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selection: $author$project$App$NoSelection
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@ -5244,7 +5247,7 @@ var $author$project$App$init = function (vflags) {
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var flags = _v0.a;
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return _Utils_update(
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$author$project$App$init_model,
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{emoji: flags.emoji, markers: flags.markers});
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{emoji: flags.emoji, map_id: flags.map_id, markers: flags.markers});
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}
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}());
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};
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@ -5731,6 +5734,7 @@ var $author$project$App$UpdateExistingMarker = F2(
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var $author$project$App$UpdateNewMarker = function (a) {
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return {$: 'UpdateNewMarker', a: a};
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};
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var $elm$html$Html$a = _VirtualDom_node('a');
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var $elm$virtual_dom$VirtualDom$attribute = F2(
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function (key, value) {
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return A2(
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@ -5841,6 +5845,12 @@ var $elm$html$Html$form = _VirtualDom_node('form');
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var $elm$core$String$fromFloat = _String_fromNumber;
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var $elm$html$Html$h1 = _VirtualDom_node('h1');
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var $elm$html$Html$h2 = _VirtualDom_node('h2');
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var $elm$html$Html$Attributes$href = function (url) {
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return A2(
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$elm$html$Html$Attributes$stringProperty,
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'href',
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_VirtualDom_noJavaScriptUri(url));
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};
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var $elm$html$Html$Attributes$id = $elm$html$Html$Attributes$stringProperty('id');
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var $elm$html$Html$input = _VirtualDom_node('input');
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var $elm$html$Html$label = _VirtualDom_node('label');
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@ -5906,13 +5916,6 @@ var $author$project$LatLonDistance$lat_lon_distance = F2(
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var $elm$html$Html$li = _VirtualDom_node('li');
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var $elm$html$Html$Attributes$list = _VirtualDom_attribute('list');
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var $elm$html$Html$main_ = _VirtualDom_node('main');
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var $elm$html$Html$a = _VirtualDom_node('a');
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var $elm$html$Html$Attributes$href = function (url) {
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return A2(
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$elm$html$Html$Attributes$stringProperty,
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'href',
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_VirtualDom_noJavaScriptUri(url));
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};
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var $elm$virtual_dom$VirtualDom$Normal = function (a) {
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return {$: 'Normal', a: a};
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};
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@ -6390,7 +6393,23 @@ var $author$project$App$view = function (model) {
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A3($author$project$App$marker_link, m.icon + (' ' + m.name), i, m)
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]));
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},
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A2($elm$core$List$take, 3, closest_markers)))
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A2($elm$core$List$take, 3, closest_markers))),
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A2(
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$elm$html$Html$p,
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_List_Nil,
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_List_fromArray(
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[
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A2(
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$elm$html$Html$a,
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_List_fromArray(
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[
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$elm$html$Html$Attributes$href('?map=' + model.map_id)
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]),
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_List_fromArray(
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[
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$elm$html$Html$text('🔗 Link to this map')
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]))
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]))
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]));
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}
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}();
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@ -10,8 +10,9 @@ form = cgi.FieldStorage()
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print('Content-Type: text/plain\n')
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content = form.getfirst('content')
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map_id = form.getfirst('map_id')
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with open(Path('..') / 'data' / 'markers.json', 'w') as f:
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with open(Path('..') / 'data' / f'markers-{map_id}.json', 'w') as f:
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f.write(content)
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print(content)
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2
elm.json
2
elm.json
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@ -22,4 +22,4 @@
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"direct": {},
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"indirect": {}
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}
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}
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}
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@ -16,7 +16,7 @@
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<body>
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<header>
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<h1>Elm app by clp</h1>
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<h1>CLP's map app</h1>
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</header>
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<main>
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<p>This is an app which will either load succesfully, and you'll wonder whether you saw this text at all, or fail ignominiously, showing you only this text.</p>
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21
load-app.js
21
load-app.js
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@ -140,14 +140,21 @@ async function init_app() {
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return;
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}
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const params = (new URL(window.location)).searchParams;
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console.log(params);
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let map_id = params.get('map') || '';
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if(!map_id) {
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map_id = Math.floor(Math.random()*Number.MAX_SAFE_INTEGER).toString(16).padStart(8,'0').slice(0,8);
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}
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let markers = [];
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try {
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markers = await (await fetch('data/markers.json')).json();
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markers = await (await fetch(`data/markers-${map_id}.json`)).json();
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} catch(e) {
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try {
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const fh = await opfs.getFileHandle('markers.json');
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const fh = await opfs.getFileHandle(`markers-${map_id}.json`);
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const f = await fh.getFile();
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markers = JSON.parse(await f.text())
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} catch(e) {
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@ -158,10 +165,11 @@ async function init_app() {
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const emoji = await (await fetch('emoji_metadata.json')).json();
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const app = Elm.App.init({node: document.body, flags: {emoji, markers}});
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const app = Elm.App.init({
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node: document.body,
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flags: {emoji, markers, map_id}
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});
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const params = new URLSearchParams(location.search);
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navigator.geolocation.watchPosition(
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(r) => {
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app.ports.receive_position.send(r.coords);
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@ -172,13 +180,14 @@ async function init_app() {
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const send_value_handlers = {
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save: async ({markers}) => {
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const f = await opfs.getFileHandle('markers.json', {create:true});
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const f = await opfs.getFileHandle(`markers-${map_id}.json`, {create:true});
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const w = await f.createWritable();
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await w.write(JSON.stringify(markers));
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await w.close();
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const fd = new FormData();
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fd.set('content', JSON.stringify(markers));
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fd.set('map_id', map_id);
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fetch('cgi-bin/save_data.py', {
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method: 'POST',
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body: fd
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16
src/App.elm
16
src/App.elm
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@ -50,6 +50,7 @@ type MapCentre
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type alias Model =
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{ markers : List Marker
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, emoji : List Emoji
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, map_id : String
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, current_position : LatLon
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, selection : Selection
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, new_marker : Marker
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@ -60,7 +61,8 @@ type alias Model =
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init_model =
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{ markers = []
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, emoji = []
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, current_position = {lat = 55.05155870729228, lon = -1.4652193740914812}
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, map_id = ""
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, current_position = {lat = 55.04, lon = -1.46}
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, selection = NoSelection
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, new_marker = blank_marker
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, accuracy = 0
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@ -91,18 +93,20 @@ decode_emoji =
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type alias Flags =
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{ emoji : List Emoji
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, markers : List Marker
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, map_id : String
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}
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decode_flags =
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JD.map2 Flags
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JD.map3 Flags
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(JD.field "emoji" (JD.list decode_emoji))
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(JD.field "markers" (JD.list decode_marker))
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(JD.field "map_id" JD.string)
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init : (JD.Value) -> (Model, Cmd msg)
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init vflags =
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(case JD.decodeValue decode_flags vflags of
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Err _ -> init_model
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Ok flags -> { init_model | emoji = flags.emoji, markers = flags.markers }
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Ok flags -> { init_model | emoji = flags.emoji, markers = flags.markers, map_id = flags.map_id }
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) |> nocmd
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nocmd m = (m, Cmd.none)
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@ -387,6 +391,12 @@ view model =
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)
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(closest_markers |> List.take 3)
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)
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, H.p
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[]
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[ H.a
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[ HA.href <| "?map=" ++ model.map_id ]
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[ H.text "🔗 Link to this map" ]
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]
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]
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closest_markers =
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