Update package version to 3.17.1

Fix CHANGETYPE in ol.control.FullScreen

changelog/v3.17.1.md

@@ -0,0 +1,9 @@
+# v3.17.1
+
+## Summary
+
+The v3.17.1 release is a patch release that addresses a regression in the v3.17.0 release.  See the [v3.17.0 release notes](https://github.com/openlayers/ol3/releases/tag/v3.17.0) for details on upgrading from v3.16.
+
+## Fixes
+
+ * [#5548](https://github.com/openlayers/ol3/pull/5548) - Fix CHANGETYPE in ol.control.FullScreen ([@GaborFarkas](https://github.com/GaborFarkas))

package.json

@@ -1,6 +1,6 @@
 {
   "name": "openlayers",
-  "version": "3.17.0",
+  "version": "3.17.1",
   "description": "Build tools and sources for developing OpenLayers based mapping applications",
   "keywords": [
     "map",

src/ol/control/fullscreencontrol.js

@@ -162,9 +162,9 @@ ol.control.FullScreen.prototype.handleFullScreenChange_ = function() {
 ol.control.FullScreen.prototype.setMap = function(map) {
   ol.control.Control.prototype.setMap.call(this, map);
   if (map) {
-    this.listenerKeys.push(
-        ol.events.listen(ol.global.document, ol.control.FullScreen.CHANGETYPE,
-          this.handleFullScreenChange_, this)
+    this.listenerKeys.push(ol.events.listen(ol.global.document,
+        ol.control.FullScreen.getChangeType_(),
+        this.handleFullScreenChange_, this)
     );
   }
 };
@@ -238,18 +238,24 @@ ol.control.FullScreen.exitFullScreen = function() {
 };
 
 /**
- * @type {string}
+ * @return {string} Change type.
+ * @private
  */
-ol.control.FullScreen.CHANGETYPE = (function() {
-  var body = document.body;
-  if (body.webkitRequestFullscreen) {
-    return 'webkitfullscreenchange';
-  } else if (body.mozRequestFullScreen) {
-    return 'mozfullscreenchange';
-  } else if (body.msRequestFullscreen) {
-    return 'MSFullscreenChange';
-  } else if (body.requestFullscreen) {
-    return 'fullscreenchange';
-  }
-  return undefined;
+ol.control.FullScreen.getChangeType_ = (function() {
+  var changeType;
+  return function() {
+    if (!changeType) {
+      var body = document.body;
+      if (body.webkitRequestFullscreen) {
+        changeType = 'webkitfullscreenchange';
+      } else if (body.mozRequestFullScreen) {
+        changeType = 'mozfullscreenchange';
+      } else if (body.msRequestFullscreen) {
+        changeType = 'MSFullscreenChange';
+      } else if (body.requestFullscreen) {
+        changeType = 'fullscreenchange';
+      }
+    }
+    return changeType;
+  };
 })();