Move source files so they are named like their provides

src/ol/source/imagecanvas.js

@@ -0,0 +1,87 @@
+goog.provide('ol.source.ImageCanvas');
+
+goog.require('ol.ImageCanvas');
+goog.require('ol.extent');
+goog.require('ol.source.Image');
+
+
+/**
+ * @classdesc
+ * Base class for image sources where a canvas element is the image.
+ *
+ * @constructor
+ * @extends {ol.source.Image}
+ * @param {olx.source.ImageCanvasOptions} options Constructor options.
+ * @api
+ */
+ol.source.ImageCanvas = function(options) {
+
+  ol.source.Image.call(this, {
+    attributions: options.attributions,
+    logo: options.logo,
+    projection: options.projection,
+    resolutions: options.resolutions,
+    state: options.state
+  });
+
+  /**
+   * @private
+   * @type {ol.CanvasFunctionType}
+   */
+  this.canvasFunction_ = options.canvasFunction;
+
+  /**
+   * @private
+   * @type {ol.ImageCanvas}
+   */
+  this.canvas_ = null;
+
+  /**
+   * @private
+   * @type {number}
+   */
+  this.renderedRevision_ = 0;
+
+  /**
+   * @private
+   * @type {number}
+   */
+  this.ratio_ = options.ratio !== undefined ?
+      options.ratio : 1.5;
+
+};
+ol.inherits(ol.source.ImageCanvas, ol.source.Image);
+
+
+/**
+ * @inheritDoc
+ */
+ol.source.ImageCanvas.prototype.getImageInternal = function(extent, resolution, pixelRatio, projection) {
+  resolution = this.findNearestResolution(resolution);
+
+  var canvas = this.canvas_;
+  if (canvas &&
+      this.renderedRevision_ == this.getRevision() &&
+      canvas.getResolution() == resolution &&
+      canvas.getPixelRatio() == pixelRatio &&
+      ol.extent.containsExtent(canvas.getExtent(), extent)) {
+    return canvas;
+  }
+
+  extent = extent.slice();
+  ol.extent.scaleFromCenter(extent, this.ratio_);
+  var width = ol.extent.getWidth(extent) / resolution;
+  var height = ol.extent.getHeight(extent) / resolution;
+  var size = [width * pixelRatio, height * pixelRatio];
+
+  var canvasElement = this.canvasFunction_(
+      extent, resolution, pixelRatio, size, projection);
+  if (canvasElement) {
+    canvas = new ol.ImageCanvas(extent, resolution, pixelRatio,
+        this.getAttributions(), canvasElement);
+  }
+  this.canvas_ = canvas;
+  this.renderedRevision_ = this.getRevision();
+
+  return canvas;
+};