Add experimental controls infrastructure, thanks @elemoine

2012-07-18 13:32:22 +02:00
parent 1af79ede29
commit c6343ed2bc
11 changed files with 214 additions and 381 deletions
@@ -0,0 +1,34 @@
+goog.provide('ol.control.DblClickZoom');
+
+goog.require('goog.events.EventType');
+goog.require('ol.Control');
+goog.require('ol.MapBrowserEvent');
+
+
+
+/**
+ * @constructor
+ * @extends {ol.Control}
+ */
+ol.control.DblClickZoom = function() {
+  goog.base(this);
+};
+goog.inherits(ol.control.DblClickZoom, ol.Control);
+
+
+/**
+ * @inheritDoc
+ */
+ol.control.DblClickZoom.prototype.handleMapBrowserEvent = function(event) {
+  if (event.type == goog.events.EventType.DBLCLICK) {
+    var map = event.map;
+    map.whileFrozen(function() {
+      // FIXME compute correct center for zoom
+      map.setCenter(event.getCoordinate());
+      var browserEventObject = event.getBrowserEventObject();
+      var scale = browserEventObject.shiftKey ? 2 : 0.5;
+      map.setResolution(scale * map.getResolution());
+    });
+    event.preventDefault();
+  }
+};