Give each source file a unique name

src/ol/renderer/dom/domlayerrenderer.js

@@ -0,0 +1,85 @@
+goog.provide('ol.renderer.dom.Layer');
+
+goog.require('ol.Coordinate');
+goog.require('ol.renderer.Layer');
+
+
+
+/**
+ * @constructor
+ * @extends {ol.renderer.Layer}
+ * @param {ol.renderer.Map} mapRenderer Map renderer.
+ * @param {ol.layer.Layer} layer Layer.
+ * @param {!Element} target Target.
+ */
+ol.renderer.dom.Layer = function(mapRenderer, layer, target) {
+  goog.base(this, mapRenderer, layer);
+
+  /**
+   * @type {!Element}
+   * @protected
+   */
+  this.target = target;
+
+  /**
+   * Top left corner of the target in map coords.
+   *
+   * @type {ol.Coordinate}
+   * @protected
+   */
+  this.origin = null;
+
+  this.handleLayerOpacityChange();
+  this.handleLayerVisibleChange();
+
+};
+goog.inherits(ol.renderer.dom.Layer, ol.renderer.Layer);
+
+
+/**
+ * @inheritDoc
+ * @return {ol.renderer.Map} Map renderer.
+ */
+ol.renderer.dom.Layer.prototype.getMapRenderer = function() {
+  return /** @type {ol.renderer.dom.Map} */ goog.base(this, 'getMapRenderer');
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.renderer.dom.Layer.prototype.handleLayerLoad = function() {
+  this.getMap().render();
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.renderer.dom.Layer.prototype.handleLayerOpacityChange = function() {
+  goog.style.setOpacity(this.target, this.getLayer().getOpacity());
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.renderer.dom.Layer.prototype.handleLayerVisibleChange = function() {
+  goog.style.showElement(this.target, this.getLayer().getVisible());
+};
+
+
+/**
+ * Render.
+ */
+ol.renderer.dom.Layer.prototype.render = goog.abstractMethod;
+
+
+/**
+ * Set the location of the top left corner of the target.
+ *
+ * @param {ol.Coordinate} origin Origin.
+ */
+ol.renderer.dom.Layer.prototype.setOrigin = function(origin) {
+  this.origin = origin;
+};