From 2f2ea373ca0624c978223b17f04c434f02ab79a3 Mon Sep 17 00:00:00 2001
From: Frederic Junod <frederic.junod@camptocamp.com>
Date: Mon, 21 Jan 2013 15:18:18 +0100
Subject: [PATCH] Add ol.renderer.Map.getCanvas function. Only valid with the
 canvas and webgl renderers

---
 src/ol/renderer/canvas/canvasmaprenderer.js | 8 ++++++++
 src/ol/renderer/maprenderer.js              | 6 ++++++
 src/ol/renderer/webgl/webglmaprenderer.js   | 8 ++++++++
 3 files changed, 22 insertions(+)

diff --git a/src/ol/renderer/canvas/canvasmaprenderer.js b/src/ol/renderer/canvas/canvasmaprenderer.js
index b664dc977a..4b253c41d4 100644
--- a/src/ol/renderer/canvas/canvasmaprenderer.js
+++ b/src/ol/renderer/canvas/canvasmaprenderer.js
@@ -67,6 +67,14 @@ ol.renderer.canvas.Map.prototype.createLayerRenderer = function(layer) {
 };
 
 
+/**
+ * @inheritDoc
+ */
+ol.renderer.canvas.Map.prototype.getCanvas = function() {
+  return this.canvas_;
+};
+
+
 /**
  * @inheritDoc
  */
diff --git a/src/ol/renderer/maprenderer.js b/src/ol/renderer/maprenderer.js
index 14b3db6d9f..0e8f876bb9 100644
--- a/src/ol/renderer/maprenderer.js
+++ b/src/ol/renderer/maprenderer.js
@@ -148,6 +148,12 @@ ol.renderer.Map.prototype.disposeInternal = function() {
 };
 
 
+/**
+ * @return {Element} Canvas.
+ */
+ol.renderer.Map.prototype.getCanvas = goog.functions.NULL;
+
+
 /**
  * @param {ol.layer.Layer} layer Layer.
  * @protected
diff --git a/src/ol/renderer/webgl/webglmaprenderer.js b/src/ol/renderer/webgl/webglmaprenderer.js
index c334e59b80..211c6bb25c 100644
--- a/src/ol/renderer/webgl/webglmaprenderer.js
+++ b/src/ol/renderer/webgl/webglmaprenderer.js
@@ -294,6 +294,14 @@ ol.renderer.webgl.Map.prototype.disposeInternal = function() {
 };
 
 
+/**
+ * @inheritDoc
+ */
+ol.renderer.webgl.Map.prototype.getCanvas = function() {
+  return this.canvas_;
+};
+
+
 /**
  * @return {WebGLRenderingContext} GL.
  */