[Commits] r200 - sandbox/opengeo/drake/trunk/apps/drake

[commits at geoext.org]

Author: tcoulter
Date: 2009-02-18 22:51:20 +0100 (Wed, 18 Feb 2009)
New Revision: 200

Added:
   sandbox/opengeo/drake/trunk/apps/drake/MaxFeaturesWarning.js
Modified:
   sandbox/opengeo/drake/trunk/apps/drake/index.html
Log:
Adding maxFeatures and the MaxFeaturesWarning message. Note that there's a bug in the GeoExt.tree.TreeNode (local to Drake) class where activatelayer gets called twice. I'll soon be writing this up. 

Added: sandbox/opengeo/drake/trunk/apps/drake/MaxFeaturesWarning.js
===================================================================
--- sandbox/opengeo/drake/trunk/apps/drake/MaxFeaturesWarning.js	                        (rev 0)
+++ sandbox/opengeo/drake/trunk/apps/drake/MaxFeaturesWarning.js	2009-02-18 21:51:20 UTC (rev 200)
@@ -0,0 +1,25 @@
+GeoExt.drake.MaxFeaturesWarning = Ext.extend(Ext.Window, {
+
+    // Must be set on initialization.
+    maxFeatures: null,
+    
+    autoHeight: true,
+    width: 350,
+    
+    bodyStyle: "padding: 5px; background-color: #FFFFFF;",
+    
+    title: "Warning: Maximum Features Encountered",
+
+    initComponent: function() {
+        this.html = "You have encountered the maximum allowed features for the active layer (" + this.maxFeatures + " allowed). If I was a nicer application, I'd tell you something fluffier and more caring, about how you need to refine your search to overcome some technical nonsense. But I'm not. So deal with it.";
+        this.buttons = [
+            new Ext.Button({
+                text: "I'll deal.",
+                handler: function() {
+                    this.close();
+                },
+                scope: this
+            })
+        ];
+    }
+});
\ No newline at end of file

Modified: sandbox/opengeo/drake/trunk/apps/drake/index.html
===================================================================
--- sandbox/opengeo/drake/trunk/apps/drake/index.html	2009-02-18 21:48:18 UTC (rev 199)
+++ sandbox/opengeo/drake/trunk/apps/drake/index.html	2009-02-18 21:51:20 UTC (rev 200)
@@ -20,6 +20,7 @@
     <script type="text/javascript" src="./CustomFilterBuilder.js"></script>
     <script type="text/javascript" src="./LayerTree.js"></script>
     <script type="text/javascript" src="./LayerNodeUI.js"></script>
+    <script type="text/javascript" src="./MaxFeaturesWarning.js"></script>
 
     <script>
 
@@ -164,7 +165,8 @@
                 featureNS: ns,
                 featurePrefix: prefix,
                 srsName: "EPSG:4326",
-                version: "1.1.0"
+                version: "1.1.0",
+                maxFeatures: this.maxFeatures
             });
         
             return new GeoExt.data.ProtocolProxy({protocol: proto});
@@ -177,6 +179,16 @@
                 remoteSort: true,
                 reader: new Ext.data.JsonReader({}, [])
             });
+            
+            this.featureStore.on("load", function() {
+                if (this.featureStore.getTotalCount() >= this.maxFeatures) {
+                    var maxFeaturesWarning = new GeoExt.drake.MaxFeaturesWarning({
+                        maxFeatures: this.maxFeatures
+                    });
+                    
+                    maxFeaturesWarning.show();
+                }
+            }, this);
         },
         
         initWMSStore: function() {
@@ -210,6 +222,7 @@
                             this.featureStore.proxy.setOGCFilter(null);
                             this.filterBuilder.un("change", this.updateQueryFilter, this);
                         }
+                        console.log("Use Filter handler");
                         this.reloadFeatureStore();
                     },
                     scope: this
@@ -535,6 +548,7 @@
         }, 
 
         activateLayer: function(layer) {
+            console.log("activateLayer");
             this.filterBuilder.attributes = new GeoExt.data.AttributesStore({
                 url: this.getWFSLayerURL(layer.name),
                 ignore: {name: "the_geom"}
@@ -573,16 +587,23 @@
             this.grid.setTitle(typename + " - " + namespace);
             this.grid.colModel.setConfig(columnize(this.fields));
 
+            console.log("finishActivating");
             this.reloadFeatureStore();
         },
 
         updateQueryFilter: function(builder){
             this.featureStore.proxy.setOGCFilter(builder.getFilter());
+            console.log("updateQueryFilter");
             this.reloadFeatureStore();
         },
         
         reloadFeatureStore: function() {
-            this.featureStore.load({params: {start: 0, limit: this.featuresPerPage}});
+            this.featureStore.load({
+                params: {
+                    start: 0, 
+                    limit: this.featuresPerPage
+                }
+            });
         }
     };