Merge pull request #7327 from tschaub/tile-management

Prune the tile cache after updating a source's URL

src/ol/source/tile.js

@@ -120,7 +120,7 @@ ol.source.Tile.prototype.forEachLoadedTile = function(projection, z, tileRange,
   var tile, tileCoordKey, loaded;
   for (var x = tileRange.minX; x <= tileRange.maxX; ++x) {
     for (var y = tileRange.minY; y <= tileRange.maxY; ++y) {
-      tileCoordKey = this.getKeyZXY(z, x, y);
+      tileCoordKey = ol.tilecoord.getKeyZXY(z, x, y);
       loaded = false;
       if (tileCache.containsKey(tileCoordKey)) {
         tile = /** @type {!ol.Tile} */ (tileCache.get(tileCoordKey));
@@ -170,16 +170,6 @@ ol.source.Tile.prototype.setKey = function(key) {
 };
 
 
-/**
- * @param {number} z Z.
- * @param {number} x X.
- * @param {number} y Y.
- * @return {string} Key.
- * @protected
- */
-ol.source.Tile.prototype.getKeyZXY = ol.tilecoord.getKeyZXY;
-
-
 /**
  * @param {ol.proj.Projection} projection Projection.
  * @return {boolean} Opaque.

src/ol/source/tiledebug.js

@@ -6,6 +6,7 @@ goog.require('ol.TileState');
 goog.require('ol.dom');
 goog.require('ol.size');
 goog.require('ol.source.Tile');
+goog.require('ol.tilecoord');
 
 
 /**
@@ -38,7 +39,7 @@ ol.inherits(ol.source.TileDebug, ol.source.Tile);
  * @inheritDoc
  */
 ol.source.TileDebug.prototype.getTile = function(z, x, y) {
-  var tileCoordKey = this.getKeyZXY(z, x, y);
+  var tileCoordKey = ol.tilecoord.getKeyZXY(z, x, y);
   if (this.tileCache.containsKey(tileCoordKey)) {
     return /** @type {!ol.source.TileDebug.Tile_} */ (this.tileCache.get(tileCoordKey));
   } else {

src/ol/source/tileimage.js

@@ -9,6 +9,7 @@ goog.require('ol.events.EventType');
 goog.require('ol.proj');
 goog.require('ol.reproj.Tile');
 goog.require('ol.source.UrlTile');
+goog.require('ol.tilecoord');
 goog.require('ol.tilegrid');
 
 
@@ -245,7 +246,7 @@ ol.source.TileImage.prototype.getTile = function(z, x, y, pixelRatio, projection
     var cache = this.getTileCacheForProjection(projection);
     var tileCoord = [z, x, y];
     var tile;
-    var tileCoordKey = this.getKeyZXY.apply(this, tileCoord);
+    var tileCoordKey = ol.tilecoord.getKey(tileCoord);
     if (cache.containsKey(tileCoordKey)) {
       tile = /** @type {!ol.Tile} */ (cache.get(tileCoordKey));
     }
@@ -293,7 +294,7 @@ ol.source.TileImage.prototype.getTile = function(z, x, y, pixelRatio, projection
  */
 ol.source.TileImage.prototype.getTileInternal = function(z, x, y, pixelRatio, projection) {
   var tile = null;
-  var tileCoordKey = this.getKeyZXY(z, x, y);
+  var tileCoordKey = ol.tilecoord.getKeyZXY(z, x, y);
   var key = this.getKey();
   if (!this.tileCache.containsKey(tileCoordKey)) {
     tile = this.createTile_(z, x, y, pixelRatio, projection, key);

src/ol/source/tileutfgrid.js

@@ -12,6 +12,7 @@ goog.require('ol.net');
 goog.require('ol.proj');
 goog.require('ol.source.State');
 goog.require('ol.source.Tile');
+goog.require('ol.tilecoord');
 goog.require('ol.tilegrid');
 
 
@@ -215,7 +216,7 @@ ol.source.TileUTFGrid.prototype.handleTileJSONResponse = function(tileJSON) {
  * @inheritDoc
  */
 ol.source.TileUTFGrid.prototype.getTile = function(z, x, y, pixelRatio, projection) {
-  var tileCoordKey = this.getKeyZXY(z, x, y);
+  var tileCoordKey = ol.tilecoord.getKeyZXY(z, x, y);
   if (this.tileCache.containsKey(tileCoordKey)) {
     return /** @type {!ol.Tile} */ (this.tileCache.get(tileCoordKey));
   } else {
@@ -240,7 +241,7 @@ ol.source.TileUTFGrid.prototype.getTile = function(z, x, y, pixelRatio, projecti
  * @inheritDoc
  */
 ol.source.TileUTFGrid.prototype.useTile = function(z, x, y) {
-  var tileCoordKey = this.getKeyZXY(z, x, y);
+  var tileCoordKey = ol.tilecoord.getKeyZXY(z, x, y);
   if (this.tileCache.containsKey(tileCoordKey)) {
     this.tileCache.get(tileCoordKey);
   }

src/ol/source/tilewms.js

@@ -81,13 +81,6 @@ ol.source.TileWMS = function(opt_options) {
    */
   this.hidpi_ = options.hidpi !== undefined ? options.hidpi : true;
 
-  /**
-   * @private
-   * @type {string}
-   */
-  this.coordKeyPrefix_ = '';
-  this.resetCoordKeyPrefix_();
-
   /**
    * @private
    * @type {ol.Extent}
@@ -171,14 +164,6 @@ ol.source.TileWMS.prototype.getGutterInternal = function() {
 };
 
 
-/**
- * @inheritDoc
- */
-ol.source.TileWMS.prototype.getKeyZXY = function(z, x, y) {
-  return this.coordKeyPrefix_ + ol.source.TileImage.prototype.getKeyZXY.call(this, z, x, y);
-};
-
-
 /**
  * Get the user-provided params, i.e. those passed to the constructor through
  * the "params" option, and possibly updated using the updateParams method.
@@ -273,24 +258,6 @@ ol.source.TileWMS.prototype.getTilePixelRatio = function(pixelRatio) {
 };
 
 
-/**
- * @private
- */
-ol.source.TileWMS.prototype.resetCoordKeyPrefix_ = function() {
-  var i = 0;
-  var res = [];
-
-  if (this.urls) {
-    var j, jj;
-    for (j = 0, jj = this.urls.length; j < jj; ++j) {
-      res[i++] = this.urls[j];
-    }
-  }
-
-  this.coordKeyPrefix_ = res.join('#');
-};
-
-
 /**
  * @private
  * @return {string} The key for the current params.
@@ -352,15 +319,6 @@ ol.source.TileWMS.prototype.fixedTileUrlFunction = function(tileCoord, pixelRati
       pixelRatio, projection, baseParams);
 };
 
-/**
- * @inheritDoc
- */
-ol.source.TileWMS.prototype.setUrls = function(urls) {
-  ol.source.TileImage.prototype.setUrls.call(this, urls);
-  this.resetCoordKeyPrefix_();
-};
-
-
 /**
  * Update the user-provided params.
  * @param {Object} params Params.
@@ -368,7 +326,6 @@ ol.source.TileWMS.prototype.setUrls = function(urls) {
  */
 ol.source.TileWMS.prototype.updateParams = function(params) {
   ol.obj.assign(this.params_, params);
-  this.resetCoordKeyPrefix_();
   this.updateV13_();
   this.setKey(this.getKeyForParams_());
 };

src/ol/source/urltile.js

@@ -5,6 +5,7 @@ goog.require('ol.TileState');
 goog.require('ol.TileUrlFunction');
 goog.require('ol.source.Tile');
 goog.require('ol.source.TileEventType');
+goog.require('ol.tilecoord');
 
 
 /**
@@ -155,6 +156,7 @@ ol.source.UrlTile.prototype.setTileLoadFunction = function(tileLoadFunction) {
  */
 ol.source.UrlTile.prototype.setTileUrlFunction = function(tileUrlFunction, opt_key) {
   this.tileUrlFunction = tileUrlFunction;
+  this.tileCache.pruneExceptNewestZ();
   if (typeof opt_key !== 'undefined') {
     this.setKey(opt_key);
   } else {
@@ -194,7 +196,7 @@ ol.source.UrlTile.prototype.setUrls = function(urls) {
  * @inheritDoc
  */
 ol.source.UrlTile.prototype.useTile = function(z, x, y) {
-  var tileCoordKey = this.getKeyZXY(z, x, y);
+  var tileCoordKey = ol.tilecoord.getKeyZXY(z, x, y);
   if (this.tileCache.containsKey(tileCoordKey)) {
     this.tileCache.get(tileCoordKey);
   }

src/ol/source/vectortile.js

@@ -5,8 +5,9 @@ goog.require('ol.TileState');
 goog.require('ol.VectorImageTile');
 goog.require('ol.VectorTile');
 goog.require('ol.size');
-goog.require('ol.tilegrid');
 goog.require('ol.source.UrlTile');
+goog.require('ol.tilecoord');
+goog.require('ol.tilegrid');
 
 
 /**
@@ -110,7 +111,7 @@ ol.source.VectorTile.prototype.clear = function() {
  * @inheritDoc
  */
 ol.source.VectorTile.prototype.getTile = function(z, x, y, pixelRatio, projection) {
-  var tileCoordKey = this.getKeyZXY(z, x, y);
+  var tileCoordKey = ol.tilecoord.getKeyZXY(z, x, y);
   if (this.tileCache.containsKey(tileCoordKey)) {
     return /** @type {!ol.Tile} */ (this.tileCache.get(tileCoordKey));
   } else {