From 72080a88da48b5209962beec77db168a2eeeeba8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=93scar=20Gonz=C3=A1lez=20Fern=C3=A1ndez?=
 <ogonzalez@igalia.com>
Date: Tue, 27 Oct 2009 23:09:57 +0100
Subject: [PATCH] ItEr32S12CUAsignacionGrupoRecursosAPlanificacionItEr31S15:
 Now TabsConfiguration allows to specify when a tab must reload its name using
 States

---
 .../java/org/zkoss/ganttz/TabSwitcher.java    |  5 +-
 .../ganttz/adapters/TabsConfiguration.java    | 52 +++++++++++++++++--
 2 files changed, 48 insertions(+), 9 deletions(-)

diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/TabSwitcher.java b/ganttzk/src/main/java/org/zkoss/ganttz/TabSwitcher.java
index 62a14aae4..5a3172682 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/TabSwitcher.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/TabSwitcher.java
@@ -21,7 +21,6 @@
 package org.zkoss.ganttz;
 
 import org.zkoss.ganttz.adapters.TabsConfiguration;
-import org.zkoss.ganttz.extensions.ITab;
 import org.zkoss.ganttz.util.IMenuItemsRegister;
 import org.zkoss.ganttz.util.OnZKDesktopRegistry;
 import org.zkoss.zk.ui.Component;
@@ -49,9 +48,7 @@ public class TabSwitcher extends HtmlMacroComponent {
     private void addTabsFromComfiguration(TabsConfiguration configuration) {
         container.getChildren().clear();
         tabsRegistry = new TabsRegistry(container);
-        for (ITab tab : configuration.getTabs()) {
-            tabsRegistry.add(tab);
-        }
+        configuration.applyTo(tabsRegistry);
         tabsRegistry.registerAtMenu(getMenuItemsRegisterLocator().retrieve());
         tabsRegistry.showFirst();
     }
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/adapters/TabsConfiguration.java b/ganttzk/src/main/java/org/zkoss/ganttz/adapters/TabsConfiguration.java
index 6223b80c3..af9d36799 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/adapters/TabsConfiguration.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/adapters/TabsConfiguration.java
@@ -21,29 +21,71 @@
 package org.zkoss.ganttz.adapters;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 
+import org.zkoss.ganttz.TabsRegistry;
+import org.zkoss.ganttz.adapters.State.IValueChangeListener;
 import org.zkoss.ganttz.extensions.ITab;
 
 public class TabsConfiguration {
 
+    public static ChangeableTab configure(ITab tab) {
+        return new ChangeableTab(tab);
+    }
+
+    public static class ChangeableTab {
+        private final ITab tab;
+
+        private State<Void> reloadNameState;
+
+        ChangeableTab(ITab tab) {
+            this.tab = tab;
+        }
+
+        public ChangeableTab reloadNameOn(State<Void> reloadName) {
+            this.reloadNameState = reloadName;
+            return this;
+        }
+    }
+
     public static TabsConfiguration create() {
         return new TabsConfiguration();
     }
 
-    private List<ITab> tabs = new ArrayList<ITab>();
+    private List<ChangeableTab> tabs = new ArrayList<ChangeableTab>();
 
     private TabsConfiguration() {
     }
 
     public TabsConfiguration add(ITab tab) {
-        tabs.add(tab);
+        tabs.add(new ChangeableTab(tab));
         return this;
     }
 
-    public List<ITab> getTabs() {
-        return Collections.unmodifiableList(tabs);
+    public TabsConfiguration add(ChangeableTab changeableTab) {
+        tabs.add(changeableTab);
+        return this;
+    }
+
+    public void applyTo(TabsRegistry tabsRegistry) {
+        for (ChangeableTab tab : tabs) {
+            tabsRegistry.add(tab.tab);
+            reloadNameIfNeeded(tabsRegistry, tab);
+        }
+    }
+
+    private void reloadNameIfNeeded(final TabsRegistry tabsRegistry,
+            final ChangeableTab tab) {
+        if (tab.reloadNameState == null) {
+            return;
+        }
+        tab.reloadNameState.addListener(new IValueChangeListener<Void>() {
+
+            @Override
+            public void hasChanged(State<Void> condition) {
+                tabsRegistry.loadNewName(tab.tab);
+            }
+        });
     }
 
 }