forked from MTSR/mapserver
40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
var RealtimeTileLayer = (function(){
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'use strict';
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function getTileSource(layerId, x,y,zoom,cacheBust){
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return "api/tile/" + layerId + "/" + x + "/" + y + "/" + zoom + "?_=" + Date.now();
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}
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function getImageId(layerId, x, y, zoom){
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return "tile-" + layerId + "/" + x + "/" + y + "/" + zoom;
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}
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return {
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init: function(){
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WebSocketChannel.addListener("rendered-tile", function(tc){
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var id = getImageId(tc.layerid, tc.x, tc.y, tc.zoom);
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var el = document.getElementById(id);
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if (el){
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//Update src attribute if img found
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el.src = getTileSource(tc.layerid, tc.x, tc.y, tc.zoom, true);
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}
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});
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},
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create: function(layerId){
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return L.TileLayer.extend({
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createTile: function(coords){
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var tile = document.createElement('img');
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tile.src = getTileSource(layerId, coords.x, coords.y, coords.z);
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tile.id = getImageId(layerId, coords.x, coords.y, coords.z);
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return tile;
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}
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});
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}
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};
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}())
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