WAI-ARIA functions for Tree (#11389)

All to navigate the tree with an assisitve device

Change-Id: I531cefc95d7a720caf69aca579549e5a497ad586

1 files changed, 122 insertions, 0 deletions

diff --git a/uitest/src/com/vaadin/tests/components/tree/SimpleTree.java b/uitest/src/com/vaadin/tests/components/tree/SimpleTree.java
new file mode 100644
index 0000000000..2fd3f05dbb
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/components/tree/SimpleTree.java
@@ -0,0 +1,122 @@
+package com.vaadin.tests.components.tree;
+
+import java.util.Date;
+
+import com.vaadin.data.Item;
+import com.vaadin.data.util.HierarchicalContainer;
+import com.vaadin.event.Action;
+import com.vaadin.server.ThemeResource;
+import com.vaadin.tests.components.TestBase;
+import com.vaadin.ui.AbstractSelect;
+import com.vaadin.ui.Tree;
+
+public class SimpleTree extends TestBase implements Action.Handler {
+    private static final String[][] hardware = { //
+            { "Desktops", "Dell OptiPlex GX240", "Dell OptiPlex GX260",
+                    "Dell OptiPlex GX280" },
+            { "Monitors", "Benq T190HD", "Benq T220HD", "Benq T240HD" },
+            { "Laptops", "IBM ThinkPad T40", "IBM ThinkPad T43",
+                    "IBM ThinkPad T60" } };
+
+    ThemeResource notCachedFolderIconLargeOther = new ThemeResource(
+            "../runo/icons/16/ok.png?" + new Date().getTime());
+    ThemeResource notCachedFolderIconLarge = new ThemeResource(
+            "../runo/icons/16/folder.png?" + new Date().getTime());
+
+    // Actions for the context menu
+    private static final Action ACTION_ADD = new Action("Add child item");
+    private static final Action ACTION_DELETE = new Action("Delete");
+    private static final Action[] ACTIONS = new Action[] { ACTION_ADD,
+            ACTION_DELETE };
+
+    private Tree tree;
+
+    @Override
+    public void setup() {
+        // Create the Tree,a dd to layout
+        tree = new Tree("Hardware Inventory");
+        addComponent(tree);
+
+        // Contents from a (prefilled example) hierarchical container:
+        tree.setContainerDataSource(getHardwareContainer());
+
+        // Add actions (context menu)
+        tree.addActionHandler(this);
+
+        // Cause valueChange immediately when the user selects
+        tree.setImmediate(true);
+
+        // Set tree to show the 'name' property as caption for items
+        tree.setItemCaptionPropertyId("name");
+        tree.setItemCaptionMode(AbstractSelect.ITEM_CAPTION_MODE_PROPERTY);
+
+        tree.setItemIcon(9, notCachedFolderIconLargeOther, "First Choice");
+        tree.setItemIcon(11, notCachedFolderIconLarge);
+
+        // Expand whole tree
+        for (Object id : tree.rootItemIds()) {
+            tree.expandItemsRecursively(id);
+        }
+    }
+
+    public static HierarchicalContainer getHardwareContainer() {
+        Item item = null;
+        int itemId = 0; // Increasing numbering for itemId:s
+
+        // Create new container
+        HierarchicalContainer hwContainer = new HierarchicalContainer();
+        // Create containerproperty for name
+        hwContainer.addContainerProperty("name", String.class, null);
+        // Create containerproperty for icon
+        hwContainer.addContainerProperty("icon", ThemeResource.class,
+                new ThemeResource("../runo/icons/16/document.png"));
+        for (int i = 0; i < hardware.length; i++) {
+            // Add new item
+            item = hwContainer.addItem(itemId);
+            // Add name property for item
+            item.getItemProperty("name").setValue(hardware[i][0]);
+            // Allow children
+            hwContainer.setChildrenAllowed(itemId, true);
+            itemId++;
+            for (int j = 1; j < hardware[i].length; j++) {
+                if (j == 1) {
+                    item.getItemProperty("icon").setValue(
+                            new ThemeResource("../runo/icons/16/folder.png"));
+                }
+
+                // Add child items
+                item = hwContainer.addItem(itemId);
+                item.getItemProperty("name").setValue(hardware[i][j]);
+                hwContainer.setParent(itemId, itemId - j);
+
+                hwContainer.setChildrenAllowed(itemId, false);
+                if (j == 2) {
+                    hwContainer.setChildrenAllowed(itemId, true);
+                }
+
+                itemId++;
+            }
+        }
+        return hwContainer;
+    }
+
+    @Override
+    protected String getDescription() {
+        return "Sample Tree for testing WAI-ARIA functionality";
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        return 0;
+    }
+
+    @Override
+    public Action[] getActions(Object target, Object sender) {
+        return ACTIONS;
+    }
+
+    @Override
+    public void handleAction(Action action, Object sender, Object target) {
+        System.out.println("Action: " + action.getCaption());
+    }
+}
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