]> git.openstreetmap.org Git - rails.git/blob - app/assets/javascripts/index/history-changesets-layer.js
Merge remote-tracking branch 'upstream/pull/5914'
[rails.git] / app / assets / javascripts / index / history-changesets-layer.js
1 OSM.HistoryChangesetsLayer = L.FeatureGroup.extend({
2   _changesets: [],
3
4   updateChangesets: function (map, changesets) {
5     this._changesets = changesets;
6     this.updateChangesetShapes(map);
7   },
8
9   updateChangesetShapes: function (map) {
10     this.clearLayers();
11
12     for (const changeset of this._changesets) {
13       const bottomLeft = map.project(L.latLng(changeset.bbox.minlat, changeset.bbox.minlon)),
14             topRight = map.project(L.latLng(changeset.bbox.maxlat, changeset.bbox.maxlon)),
15             width = topRight.x - bottomLeft.x,
16             height = bottomLeft.y - topRight.y,
17             minSize = 20; // Min width/height of changeset in pixels
18
19       if (width < minSize) {
20         bottomLeft.x -= ((minSize - width) / 2);
21         topRight.x += ((minSize - width) / 2);
22       }
23
24       if (height < minSize) {
25         bottomLeft.y += ((minSize - height) / 2);
26         topRight.y -= ((minSize - height) / 2);
27       }
28
29       changeset.bounds = L.latLngBounds(map.unproject(bottomLeft),
30                                         map.unproject(topRight));
31     }
32
33     this._changesets.sort(function (a, b) {
34       return b.bounds.getSize() - a.bounds.getSize();
35     });
36
37     this.updateChangesetLocations(map);
38
39     for (const changeset of this._changesets) {
40       const rect = L.rectangle(changeset.bounds,
41                                { weight: 2, color: "#FF9500", opacity: 1, fillColor: "#FFFFAF", fillOpacity: 0 });
42       rect.id = changeset.id;
43       rect.addTo(this);
44     }
45   },
46
47   updateChangesetLocations: function (map) {
48     const mapCenterLng = map.getCenter().lng;
49
50     for (const changeset of this._changesets) {
51       const changesetSouthWest = changeset.bounds.getSouthWest();
52       const changesetNorthEast = changeset.bounds.getNorthEast();
53       const changesetCenterLng = (changesetSouthWest.lng + changesetNorthEast.lng) / 2;
54       const shiftInWorldCircumferences = Math.round((changesetCenterLng - mapCenterLng) / 360);
55
56       if (shiftInWorldCircumferences) {
57         changesetSouthWest.lng -= shiftInWorldCircumferences * 360;
58         changesetNorthEast.lng -= shiftInWorldCircumferences * 360;
59
60         this.getLayer(changeset.id)?.setBounds(changeset.bounds);
61       }
62     }
63   },
64
65   highlightChangeset: function (id) {
66     this.getLayer(id)?.setStyle({ fillOpacity: 0.3, color: "#FF6600", weight: 3 });
67   },
68
69   unHighlightChangeset: function (id) {
70     this.getLayer(id)?.setStyle({ fillOpacity: 0, color: "#FF9500", weight: 2 });
71   },
72
73   getLayerId: function (layer) {
74     return layer.id;
75   }
76 });