Make ol.source.Tile#getTilePixelRatio work for all sources

Even for sources which serve dynamic tile sizes based on devicePixelRatio

src/ol/source/tilearcgisrestsource.js

@@ -134,19 +134,10 @@ ol.source.TileArcGISRest.prototype.getRequestUrl_ =
 
 
 /**
- * @param {number} z Z.
- * @param {number} pixelRatio Pixel ratio.
- * @param {ol.proj.Projection} projection Projection.
- * @return {ol.Size} Size.
+ * @inheritDoc
  */
-ol.source.TileArcGISRest.prototype.getTilePixelSize =
-    function(z, pixelRatio, projection) {
-  var tileSize = goog.base(this, 'getTilePixelSize', z, pixelRatio, projection);
-  if (pixelRatio == 1) {
-    return tileSize;
-  } else {
-    return ol.size.scale(tileSize, pixelRatio, this.tmpSize);
-  }
+ol.source.TileArcGISRest.prototype.getTilePixelRatio = function(pixelRatio) {
+  return pixelRatio;
 };
 
 

src/ol/source/tileimagesource.js

@@ -217,7 +217,7 @@ ol.source.TileImage.prototype.getTile =
       var tile = new ol.reproj.Tile(
           sourceProjection, sourceTileGrid,
           projection, targetTileGrid,
-          tileCoord, wrappedTileCoord, this.getTilePixelRatio(),
+          tileCoord, wrappedTileCoord, this.getTilePixelRatio(pixelRatio),
           goog.bind(function(z, x, y, pixelRatio) {
             return this.getTileInternal(z, x, y, pixelRatio, sourceProjection);
           }, this), this.reprojectionErrorThreshold_,

src/ol/source/tilesource.js

@@ -243,9 +243,10 @@ ol.source.Tile.prototype.getTileCacheForProjection = function(projection) {
 
 
 /**
+ * @param {number} pixelRatio Pixel ratio.
  * @return {number} Tile pixel ratio.
  */
-ol.source.Tile.prototype.getTilePixelRatio = function() {
+ol.source.Tile.prototype.getTilePixelRatio = function(pixelRatio) {
   return this.tilePixelRatio_;
 };
 
@@ -259,8 +260,13 @@ ol.source.Tile.prototype.getTilePixelRatio = function() {
 ol.source.Tile.prototype.getTilePixelSize =
     function(z, pixelRatio, projection) {
   var tileGrid = this.getTileGridForProjection(projection);
-  return ol.size.scale(ol.size.toSize(tileGrid.getTileSize(z), this.tmpSize),
-      this.tilePixelRatio_, this.tmpSize);
+  var tilePixelRatio = this.getTilePixelRatio(pixelRatio);
+  var tileSize = ol.size.toSize(tileGrid.getTileSize(z), this.tmpSize);
+  if (tilePixelRatio == 1) {
+    return tileSize;
+  } else {
+    return ol.size.scale(tileSize, tilePixelRatio, this.tmpSize);
+  }
 };
 
 

src/ol/source/tilewmssource.js

@@ -275,19 +275,10 @@ ol.source.TileWMS.prototype.getRequestUrl_ =
 
 
 /**
- * @param {number} z Z.
- * @param {number} pixelRatio Pixel ratio.
- * @param {ol.proj.Projection} projection Projection.
- * @return {ol.Size} Size.
+ * @inheritDoc
  */
-ol.source.TileWMS.prototype.getTilePixelSize =
-    function(z, pixelRatio, projection) {
-  var tileSize = goog.base(this, 'getTilePixelSize', z, pixelRatio, projection);
-  if (pixelRatio == 1 || !this.hidpi_ || this.serverType_ === undefined) {
-    return tileSize;
-  } else {
-    return ol.size.scale(tileSize, pixelRatio, this.tmpSize);
-  }
+ol.source.TileWMS.prototype.getTilePixelRatio = function(pixelRatio) {
+  return (!this.hidpi_ || this.serverType_ === undefined) ? 1 : pixelRatio;
 };