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viewer: update to leaflet 1.9.4

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This commit is contained in:
Matthias Schiffer 2024-01-03 04:05:41 +01:00
parent a8e0af287b
commit cb7f428974
Signed by: neocturne
GPG key ID: 16EF3F64CB201D9C
12 changed files with 98 additions and 132 deletions
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106
viewer/MinedMap.js
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@ -17,103 +17,47 @@ function contains(array, elem) {
return false;
}
const MinedMapLayer = L.GridLayer.extend({
const MinedMapLayer = L.TileLayer.extend({
initialize: function (mipmaps, layer) {
L.TileLayer.prototype.initialize.call(this, '', {
detectRetina: true,
tileSize: 512,
zoomReverse: true,
minZoom: -(mipmaps.length-1),
maxZoom: 0,
attribution: 'Generated by <a href="https://github.com/neocturne/MinedMap">MinedMap</a>',
});
this.options.maxNativeZoom = this.options.maxZoom;
this.options.maxZoom = undefined;
this.mipmaps = mipmaps;
this.layer = layer;
this.zoomOffset = L.Browser.retina ? 1 : 0;
this.options.tileSize = L.Browser.retina ? 256 : 512;
this.options.attribution = 'Generated by <a href="https://github.com/neocturne/MinedMap">MinedMap</a>';
this.options.minZoom = -(mipmaps.length-1 + this.zoomOffset);
this.options.maxNativeZoom = -this.zoomOffset;
// for https://github.com/Leaflet/Leaflet/issues/137
if (!L.Browser.android) {
this.on('tileunload', this._onTileRemove);
}
},
createTile: function (coords, done) {
const tile = document.createElement('img');
const tile = L.TileLayer.prototype.createTile.call(this, coords, done);
tile.onload = L.bind(this._tileOnLoad, this, done, tile);
tile.onerror = L.bind(this._tileOnError, this, done, tile);
/*
Alt tag is set to empty string to keep screen readers from reading URL and for compliance reasons
http://www.w3.org/TR/WCAG20-TECHS/H67
*/
tile.alt = '';
/*
Set role="presentation" to force screen readers to ignore this
https://www.w3.org/TR/wai-aria/roles#textalternativecomputation
*/
tile.setAttribute('role', 'presentation');
let z = -(coords.z + this.zoomOffset);
if (z < 0)
z = 0;
const mipmap = this.mipmaps[z];
if (coords.x >= mipmap.bounds.minX && coords.x <= mipmap.bounds.maxX &&
coords.y >= mipmap.bounds.minZ && coords.y <= mipmap.bounds.maxZ &&
contains(mipmap.regions[coords.y] || [], coords.x))
tile.src = 'data/'+this.layer+'/'+z+'/r.'+coords.x+'.'+coords.y+'.png';
if (z === 0)
if (coords.z - this.options.zoomOffset >= 0)
L.DomUtil.addClass(tile, 'overzoomed');
return tile;
},
_tileOnLoad: function (done, tile) {
if (L.Browser.ielt9)
setTimeout(Util.bind(done, this, null, tile), 0);
else
done(null, tile);
},
getTileUrl: function (coords) {
let z = -coords.z + this.options.zoomOffset;
if (z < 0)
z = 0;
_tileOnError: function (done, tile, e) {
done(e, tile);
},
const mipmap = this.mipmaps[z];
_onTileRemove: function (e) {
e.tile.onload = null;
},
if (coords.x < mipmap.bounds.minX || coords.x > mipmap.bounds.maxX ||
coords.y < mipmap.bounds.minZ || coords.y > mipmap.bounds.maxZ ||
!contains(mipmap.regions[coords.y] || [], coords.x))
return L.Util.emptyImageUrl;
_abortLoading: function () {
for (const i in this._tiles) {
if (this._tiles[i].coords.z !== this._tileZoom) {
const tile = this._tiles[i].el;
tile.onload = L.Util.falseFn;
tile.onerror = L.Util.falseFn;
if (!tile.complete) {
tile.src = L.Util.emptyImageUrl;
L.DomUtil.remove(tile);
}
}
}
},
_removeTile: function (key) {
const tile = this._tiles[key];
if (!tile) { return; }
// Cancels any pending http requests associated with the tile
// unless we're on Android's stock browser,
// see https://github.com/Leaflet/Leaflet/issues/137
if (!L.Browser.androidStock) {
tile.el.setAttribute('src', L.Util.emptyImageUrl);
}
return L.GridLayer.prototype._removeTile.call(this, key);
return 'data/'+this.layer+'/'+z+'/r.'+coords.x+'.'+coords.y+'.png';
},
});