X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/docs/source/xml-tree-loader.html diff --git a/docs/source/xml-tree-loader.html b/docs/source/xml-tree-loader.html new file mode 100644 index 00000000..b036ed11 --- /dev/null +++ b/docs/source/xml-tree-loader.html @@ -0,0 +1,102 @@ + + + The source code + + + + + 
+//
+// Extend the XmlTreeLoader to set some custom TreeNode attributes specific to our application:
+//
+Ext.app.BookLoader = Ext.extend(Ext.ux.tree.XmlTreeLoader, {
+    processAttributes : function(attr){
+        if(attr.first){ // is it an author node?
+
+            // Set the node text that will show in the tree since our raw data does not include a text attribute:
+            attr.text = attr.first + ' ' + attr.last;
+
+            // Author icon, using the gender flag to choose a specific icon:
+            attr.iconCls = 'author-' + attr.gender;
+
+            // Override these values for our folder nodes because we are loading all data at once.  If we were
+            // loading each node asynchronously (the default) we would not want to do this:
+            attr.loaded = true;
+            attr.expanded = true;
+        }
+        else if(attr.title){ // is it a book node?
+
+            // Set the node text that will show in the tree since our raw data does not include a text attribute:
+            attr.text = attr.title + ' (' + attr.published + ')';
+
+            // Book icon:
+            attr.iconCls = 'book';
+
+            // Tell the tree this is a leaf node.  This could also be passed as an attribute in the original XML,
+            // but this example demonstrates that you can control this even when you cannot dictate the format of
+            // the incoming source XML:
+            attr.leaf = true;
+        }
+    }
+});
+
+Ext.onReady(function(){
+
+    var detailsText = 'Select a book to see more information...';
+
+	var tpl = new Ext.Template(
+        '
{title}
',
+        '
Published: {published}
',
+        '
Synopsis: {innerText}
',
+        '
Purchase from Amazon
'
+	);
+    tpl.compile();
+
+    new Ext.Panel({
+        title: 'Reading List',
+	    renderTo: 'tree',
+        layout: 'border',
+	    width: 500,
+        height: 500,
+        items: [{
+            xtype: 'treepanel',
+            id: 'tree-panel',
+            region: 'center',
+            margins: '2 2 0 2',
+            autoScroll: true,
+	        rootVisible: false,
+	        root: new Ext.tree.AsyncTreeNode(),
+
+            // Our custom TreeLoader:
+	        loader: new Ext.app.BookLoader({
+	            dataUrl:'xml-tree-data.xml'
+	        }),
+
+	        listeners: {
+	            'render': function(tp){
+                    tp.getSelectionModel().on('selectionchange', function(tree, node){
+                        var el = Ext.getCmp('details-panel').body;
+	                    if(node && node.leaf){
+	                        tpl.overwrite(el, node.attributes);
+	                    }else{
+                            el.update(detailsText);
+                        }
+                    })
+	            }
+	        }
+        },{
+            region: 'south',
+            title: 'Book Details',
+            id: 'details-panel',
+            autoScroll: true,
+            collapsible: true,
+            split: true,
+            margins: '0 2 2 2',
+            cmargins: '2 2 2 2',
+            height: 220,
+            html: detailsText
+        }]
+    });
+});
+ + \ No newline at end of file