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Diffstat (limited to 'misc/openlayers/examples/cache-read.js')
| -rw-r--r-- | misc/openlayers/examples/cache-read.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/misc/openlayers/examples/cache-read.js b/misc/openlayers/examples/cache-read.js new file mode 100644 index 0000000..1f79889 --- /dev/null +++ b/misc/openlayers/examples/cache-read.js @@ -0,0 +1,36 @@ +var map, cacheRead; +function init() { + map = new OpenLayers.Map({ + div: "map", + projection: "EPSG:900913", + layers: [ + new OpenLayers.Layer.WMS("OSGeo", "http://vmap0.tiles.osgeo.org/wms/vmap0", { + layers: "basic" + }, { + eventListeners: { + tileloaded: updateHits + } + }) + ], + center: [0, 0], + zoom: 1 + }); + cacheRead = new OpenLayers.Control.CacheRead(); + map.addControl(cacheRead); + + + + // User interface + var status = document.getElementById("status"), + hits = 0; + + // update the number of cached tiles and detect local storage support + function updateHits(evt) { + hits += evt.tile.url.substr(0, 5) === "data:"; + if (window.localStorage) { + status.innerHTML = hits + " cache hits."; + } else { + status.innerHTML = "Local storage not supported. Try a different browser."; + } + } +}
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