Move source files so they are named like their provides

src/ol/source/tilearcgisrest.js

@@ -0,0 +1,172 @@
+goog.provide('ol.source.TileArcGISRest');
+
+goog.require('ol');
+goog.require('ol.extent');
+goog.require('ol.object');
+goog.require('ol.math');
+goog.require('ol.proj');
+goog.require('ol.size');
+goog.require('ol.source.TileImage');
+goog.require('ol.tilecoord');
+goog.require('ol.uri');
+
+
+/**
+ * @classdesc
+ * Layer source for tile data from ArcGIS Rest services. Map and Image
+ * Services are supported.
+ *
+ * For cached ArcGIS services, better performance is available using the
+ * {@link ol.source.XYZ} data source.
+ *
+ * @constructor
+ * @extends {ol.source.TileImage}
+ * @param {olx.source.TileArcGISRestOptions=} opt_options Tile ArcGIS Rest
+ *     options.
+ * @api
+ */
+ol.source.TileArcGISRest = function(opt_options) {
+
+  var options = opt_options || {};
+
+  ol.source.TileImage.call(this, {
+    attributions: options.attributions,
+    cacheSize: options.cacheSize,
+    crossOrigin: options.crossOrigin,
+    logo: options.logo,
+    projection: options.projection,
+    reprojectionErrorThreshold: options.reprojectionErrorThreshold,
+    tileGrid: options.tileGrid,
+    tileLoadFunction: options.tileLoadFunction,
+    url: options.url,
+    urls: options.urls,
+    wrapX: options.wrapX !== undefined ? options.wrapX : true
+  });
+
+  /**
+   * @private
+   * @type {!Object}
+   */
+  this.params_ = options.params || {};
+
+  /**
+   * @private
+   * @type {ol.Extent}
+   */
+  this.tmpExtent_ = ol.extent.createEmpty();
+
+};
+ol.inherits(ol.source.TileArcGISRest, ol.source.TileImage);
+
+
+/**
+ * Get the user-provided params, i.e. those passed to the constructor through
+ * the "params" option, and possibly updated using the updateParams method.
+ * @return {Object} Params.
+ * @api
+ */
+ol.source.TileArcGISRest.prototype.getParams = function() {
+  return this.params_;
+};
+
+
+/**
+ * @param {ol.TileCoord} tileCoord Tile coordinate.
+ * @param {ol.Size} tileSize Tile size.
+ * @param {ol.Extent} tileExtent Tile extent.
+ * @param {number} pixelRatio Pixel ratio.
+ * @param {ol.proj.Projection} projection Projection.
+ * @param {Object} params Params.
+ * @return {string|undefined} Request URL.
+ * @private
+ */
+ol.source.TileArcGISRest.prototype.getRequestUrl_ = function(tileCoord, tileSize, tileExtent,
+        pixelRatio, projection, params) {
+
+  var urls = this.urls;
+  if (!urls) {
+    return undefined;
+  }
+
+  // ArcGIS Server only wants the numeric portion of the projection ID.
+  var srid = projection.getCode().split(':').pop();
+
+  params['SIZE'] = tileSize[0] + ',' + tileSize[1];
+  params['BBOX'] = tileExtent.join(',');
+  params['BBOXSR'] = srid;
+  params['IMAGESR'] = srid;
+  params['DPI'] = Math.round(
+      params['DPI'] ? params['DPI'] * pixelRatio : 90 * pixelRatio
+      );
+
+  var url;
+  if (urls.length == 1) {
+    url = urls[0];
+  } else {
+    var index = ol.math.modulo(ol.tilecoord.hash(tileCoord), urls.length);
+    url = urls[index];
+  }
+
+  var modifiedUrl = url
+      .replace(/MapServer\/?$/, 'MapServer/export')
+      .replace(/ImageServer\/?$/, 'ImageServer/exportImage');
+  if (modifiedUrl == url) {
+    ol.assert(false, 50); // Cannot determine Rest Service from url
+  }
+  return ol.uri.appendParams(modifiedUrl, params);
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.source.TileArcGISRest.prototype.getTilePixelRatio = function(pixelRatio) {
+  return pixelRatio;
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.source.TileArcGISRest.prototype.fixedTileUrlFunction = function(tileCoord, pixelRatio, projection) {
+
+  var tileGrid = this.getTileGrid();
+  if (!tileGrid) {
+    tileGrid = this.getTileGridForProjection(projection);
+  }
+
+  if (tileGrid.getResolutions().length <= tileCoord[0]) {
+    return undefined;
+  }
+
+  var tileExtent = tileGrid.getTileCoordExtent(
+      tileCoord, this.tmpExtent_);
+  var tileSize = ol.size.toSize(
+      tileGrid.getTileSize(tileCoord[0]), this.tmpSize);
+
+  if (pixelRatio != 1) {
+    tileSize = ol.size.scale(tileSize, pixelRatio, this.tmpSize);
+  }
+
+  // Apply default params and override with user specified values.
+  var baseParams = {
+    'F': 'image',
+    'FORMAT': 'PNG32',
+    'TRANSPARENT': true
+  };
+  ol.object.assign(baseParams, this.params_);
+
+  return this.getRequestUrl_(tileCoord, tileSize, tileExtent,
+      pixelRatio, projection, baseParams);
+};
+
+
+/**
+ * Update the user-provided params.
+ * @param {Object} params Params.
+ * @api stable
+ */
+ol.source.TileArcGISRest.prototype.updateParams = function(params) {
+  ol.object.assign(this.params_, params);
+  this.changed();
+};