SelectFeature control can now select across multiple vector

layers when passed an array of layers instead of a single layer with the constructor. This changeset also introduces a new layer type, Layer.Vector.RootContainer, which will be set as the topmost layer by the SelectFeature control and collect the svg/vml/canvas roots of multiple vector layers. r=crschmidt (closes #1666) git-svn-id: http://svn.openlayers.org/trunk/openlayers@9116 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
2009-03-22 14:25:18 +00:00
parent 5c26d578ca
commit 2b1e8641f9
14 changed files with 552 additions and 59 deletions
@@ -0,0 +1,55 @@
+<html>
+<head>
+  <script src="../../../lib/OpenLayers.js"></script>
+  <script type="text/javascript">
+    var layer, map; 
+
+    function test_RootContainer_collectResetRoots(t) {
+        t.plan(4);
+        
+        map = new OpenLayers.Map("map");
+        var layer1 = new OpenLayers.Layer.Vector("layer1");
+        var layer2 = new OpenLayers.Layer.Vector("layer2");
+        layer = new OpenLayers.Layer.Vector.RootContainer("layer_1_2", {
+            layers: [layer1, layer2]
+        });
+
+        // addLayers will call setMap() for layer, which will call collectRoots()
+        map.addLayers([layer1, layer2, layer]);
+        t.eq(layer.renderer.rendererRoot.childNodes.length, 3, "layer has correct number of renderer roots");        
+        t.eq(layer1.renderer.rendererRoot.childNodes.length, 0, "layer1 has no own renderer root");
+        
+        layer.resetRoots();
+        t.eq(layer.renderer.rendererRoot.childNodes.length, 1, "roots removed from container");
+        t.eq(layer1.renderer.rendererRoot.childNodes.length, 1, "root re-added to original layer");
+    }
+    
+    function test_RootContainer_getFeatureFromEvent(t) {
+        t.plan(2);
+        var map = new OpenLayers.Map("map");
+        var layer1 = new OpenLayers.Layer.Vector("layer1");
+        var layer2 = new OpenLayers.Layer.Vector("layer2");
+        layer = new OpenLayers.Layer.Vector.RootContainer("layer_1_2", {
+            layers: [layer1, layer2]
+        });
+        map.addLayers([layer1, layer2, layer]);
+        var feature1 = new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(0,1));
+        var feature2 = new OpenLayers.Feature.Vector(new OpenLayers.Geometry.Point(1,0));
+        layer1.addFeatures(feature1);
+        layer2.addFeatures(feature2);
+        t.eq(layer.getFeatureFromEvent({
+            srcElement: {
+                _featureId: feature1.id
+            }
+        }).id, feature1.id, "feature from layer1 found");
+        t.eq(layer.getFeatureFromEvent({srcElement: {
+            _featureId: feature2.id
+        }}).id, feature2.id, "feature from layer2 found");
+    }
+
+  </script>
+</head>
+<body>
+  <div id="map" style="width:500px;height:550px"></div>
+</body>
+</html>