Imports cased like the filename

2017-12-11 16:26:11 -07:00
parent 46fd03047b
commit 1cdb6a66f0
287 changed files with 1 additions and 2 deletions
--- a/src/ol/source/TileJSON.js
+++ b/src/ol/source/TileJSON.js
@@ -0,0 +1,161 @@
+// FIXME check order of async callbacks
+
+/**
+ * @see http://mapbox.com/developers/api/
+ */
+
+goog.provide('ol.source.TileJSON');
+
+goog.require('ol');
+goog.require('ol.TileUrlFunction');
+goog.require('ol.asserts');
+goog.require('ol.extent');
+goog.require('ol.net');
+goog.require('ol.proj');
+goog.require('ol.source.State');
+goog.require('ol.source.TileImage');
+goog.require('ol.tilegrid');
+
+
+/**
+ * @classdesc
+ * Layer source for tile data in TileJSON format.
+ *
+ * @constructor
+ * @extends {ol.source.TileImage}
+ * @param {olx.source.TileJSONOptions} options TileJSON options.
+ * @api
+ */
+ol.source.TileJSON = function(options) {
+
+  /**
+   * @type {TileJSON}
+   * @private
+   */
+  this.tileJSON_ = null;
+
+  ol.source.TileImage.call(this, {
+    attributions: options.attributions,
+    cacheSize: options.cacheSize,
+    crossOrigin: options.crossOrigin,
+    projection: ol.proj.get('EPSG:3857'),
+    reprojectionErrorThreshold: options.reprojectionErrorThreshold,
+    state: ol.source.State.LOADING,
+    tileLoadFunction: options.tileLoadFunction,
+    wrapX: options.wrapX !== undefined ? options.wrapX : true,
+    transition: options.transition
+  });
+
+  if (options.url) {
+    if (options.jsonp) {
+      ol.net.jsonp(options.url, this.handleTileJSONResponse.bind(this),
+          this.handleTileJSONError.bind(this));
+    } else {
+      var client = new XMLHttpRequest();
+      client.addEventListener('load', this.onXHRLoad_.bind(this));
+      client.addEventListener('error', this.onXHRError_.bind(this));
+      client.open('GET', options.url);
+      client.send();
+    }
+  } else if (options.tileJSON) {
+    this.handleTileJSONResponse(options.tileJSON);
+  } else {
+    ol.asserts.assert(false, 51); // Either `url` or `tileJSON` options must be provided
+  }
+
+};
+ol.inherits(ol.source.TileJSON, ol.source.TileImage);
+
+
+/**
+ * @private
+ * @param {Event} event The load event.
+ */
+ol.source.TileJSON.prototype.onXHRLoad_ = function(event) {
+  var client = /** @type {XMLHttpRequest} */ (event.target);
+  // status will be 0 for file:// urls
+  if (!client.status || client.status >= 200 && client.status < 300) {
+    var response;
+    try {
+      response = /** @type {TileJSON} */(JSON.parse(client.responseText));
+    } catch (err) {
+      this.handleTileJSONError();
+      return;
+    }
+    this.handleTileJSONResponse(response);
+  } else {
+    this.handleTileJSONError();
+  }
+};
+
+
+/**
+ * @private
+ * @param {Event} event The error event.
+ */
+ol.source.TileJSON.prototype.onXHRError_ = function(event) {
+  this.handleTileJSONError();
+};
+
+
+/**
+ * @return {TileJSON} The tilejson object.
+ * @api
+ */
+ol.source.TileJSON.prototype.getTileJSON = function() {
+  return this.tileJSON_;
+};
+
+
+/**
+ * @protected
+ * @param {TileJSON} tileJSON Tile JSON.
+ */
+ol.source.TileJSON.prototype.handleTileJSONResponse = function(tileJSON) {
+
+  var epsg4326Projection = ol.proj.get('EPSG:4326');
+
+  var sourceProjection = this.getProjection();
+  var extent;
+  if (tileJSON.bounds !== undefined) {
+    var transform = ol.proj.getTransformFromProjections(
+        epsg4326Projection, sourceProjection);
+    extent = ol.extent.applyTransform(tileJSON.bounds, transform);
+  }
+
+  var minZoom = tileJSON.minzoom || 0;
+  var maxZoom = tileJSON.maxzoom || 22;
+  var tileGrid = ol.tilegrid.createXYZ({
+    extent: ol.tilegrid.extentFromProjection(sourceProjection),
+    maxZoom: maxZoom,
+    minZoom: minZoom
+  });
+  this.tileGrid = tileGrid;
+
+  this.tileUrlFunction =
+      ol.TileUrlFunction.createFromTemplates(tileJSON.tiles, tileGrid);
+
+  if (tileJSON.attribution !== undefined && !this.getAttributions2()) {
+    var attributionExtent = extent !== undefined ?
+      extent : epsg4326Projection.getExtent();
+
+    this.setAttributions(function(frameState) {
+      if (ol.extent.intersects(attributionExtent, frameState.extent)) {
+        return [tileJSON.attribution];
+      }
+      return null;
+    });
+
+  }
+  this.tileJSON_ = tileJSON;
+  this.setState(ol.source.State.READY);
+
+};
+
+
+/**
+ * @protected
+ */
+ol.source.TileJSON.prototype.handleTileJSONError = function() {
+  this.setState(ol.source.State.ERROR);
+};