From b0445f56658ea93450cc1c7677c2b0d52ae1321c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=93scar=20Gonz=C3=A1lez=20Fern=C3=A1ndez?=
 <ogonzalez@igalia.com>
Date: Tue, 18 Aug 2009 12:26:56 +0200
Subject: [PATCH] ItEr22S12CUVistaRecursosTempoPorProxectoItEr21S07: Specifying
 the view currently shown as a tab.

---
 .../main/java/org/zkoss/ganttz/Planner.java   | 33 ++++++++++-
 .../java/org/zkoss/ganttz/TabsRegistry.java   | 55 +++++++++++++++++++
 .../org/zkoss/ganttz/TasksPlanningTab.java    | 26 ++++++++-
 .../org/zkoss/ganttz/extensions/ITab.java     | 10 ++++
 4 files changed, 122 insertions(+), 2 deletions(-)
 create mode 100644 ganttzk/src/main/java/org/zkoss/ganttz/TabsRegistry.java

diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
index 2e42470e8..c7878758a 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
@@ -13,6 +13,10 @@ import org.zkoss.ganttz.data.Task;
 import org.zkoss.ganttz.extensions.ICommand;
 import org.zkoss.ganttz.extensions.ICommandOnTask;
 import org.zkoss.ganttz.extensions.IContext;
+import org.zkoss.ganttz.extensions.ITab;
+import org.zkoss.ganttz.extensions.ITabFactory;
+import org.zkoss.ganttz.util.IMenuItemsRegister;
+import org.zkoss.ganttz.util.MenuItemsRegisterLocator;
 import org.zkoss.zk.ui.Executions;
 import org.zkoss.zul.impl.XulElement;
 
@@ -111,7 +115,34 @@ public class Planner extends XulElement {
         this.context = context;
         clear();
         context.add(configuration.getData());
-        createTasksPlanningTab();
+        visualizeTabs(context, configuration
+                .getTabFactories());
+    }
+
+    private <T> TabsRegistry createTabs(IContext<T> context,
+            List<ITabFactory<T>> factories) {
+        List<ITab> tabs = new ArrayList<ITab>();
+        tabs.add(createTasksPlanningTab());
+        for (ITabFactory<T> factory : factories) {
+            tabs.add(factory.create(context));
+        }
+        TabsRegistry tabsRegistry = new TabsRegistry(this);
+        for (ITab t : tabs) {
+            tabsRegistry.add(t);
+        }
+        return tabsRegistry;
+    }
+
+    private <T> void visualizeTabs(
+            FunctionalityExposedForExtensions<T> context,
+            List<ITabFactory<T>> tabFactories) {
+        TabsRegistry tabs = createTabs(context, tabFactories);
+        registryTabs(tabs);
+        tabs.showFirst();
+    }
+
+    private void registryTabs(TabsRegistry tabs) {
+        tabs.registerAtMenu(MenuItemsRegisterLocator.retrieve());
     }
 
     private void clear() {
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/TabsRegistry.java b/ganttzk/src/main/java/org/zkoss/ganttz/TabsRegistry.java
new file mode 100644
index 000000000..fdf2c954f
--- /dev/null
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/TabsRegistry.java
@@ -0,0 +1,55 @@
+package org.zkoss.ganttz;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.zkoss.ganttz.extensions.ITab;
+import org.zkoss.ganttz.util.IMenuItemsRegister;
+import org.zkoss.zk.ui.Component;
+import org.zkoss.zk.ui.event.Event;
+import org.zkoss.zk.ui.event.EventListener;
+
+public class TabsRegistry {
+
+    private List<ITab> tabs = new ArrayList<ITab>();
+
+    private final Component parent;
+
+    public TabsRegistry(Component parent) {
+        this.parent = parent;
+    }
+
+    public void add(ITab tab) {
+        tab.addToParent(parent);
+        tabs.add(tab);
+    }
+
+    public void show(ITab tab) {
+        hideAllExcept(tab);
+        tab.show();
+    }
+
+    private void hideAllExcept(ITab tab) {
+        for (ITab t : tabs) {
+            if (t.equals(tab))
+                continue;
+            t.hide();
+        }
+    }
+
+    public void showFirst() {
+        show(tabs.get(0));
+    }
+
+    public void registerAtMenu(IMenuItemsRegister menu) {
+        for (final ITab t : tabs) {
+            menu.addMenuItem(t.getName(), new EventListener() {
+
+                @Override
+                public void onEvent(Event event) throws Exception {
+                    show(t);
+                }
+            });
+        }
+    }
+}
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/TasksPlanningTab.java b/ganttzk/src/main/java/org/zkoss/ganttz/TasksPlanningTab.java
index 4c0abb302..bec779414 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/TasksPlanningTab.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/TasksPlanningTab.java
@@ -1,6 +1,9 @@
 package org.zkoss.ganttz;
 
-public class TasksPlanningTab {
+import org.zkoss.ganttz.extensions.ITab;
+import org.zkoss.zk.ui.Component;
+
+public class TasksPlanningTab implements ITab {
 
     private final Planner planner;
     private final LeftPane leftPane;
@@ -19,4 +22,25 @@ public class TasksPlanningTab {
         leftPane.afterCompose();
         ganttPanel.afterCompose();
     }
+
+    @Override
+    public void addToParent(Component parent) {
+    }
+
+    @Override
+    public void hide() {
+        leftPane.detach();
+        ganttPanel.detach();
+    }
+
+    @Override
+    public void show() {
+        leftPane.setParent(planner);
+        ganttPanel.setParent(planner);
+    }
+
+    @Override
+    public String getName() {
+        return "Tasks Planning";
+    }
 }
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/extensions/ITab.java b/ganttzk/src/main/java/org/zkoss/ganttz/extensions/ITab.java
index 115ae5bbf..5ba5fea39 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/extensions/ITab.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/extensions/ITab.java
@@ -1,5 +1,15 @@
 package org.zkoss.ganttz.extensions;
 
+import org.zkoss.zk.ui.Component;
+
 public interface ITab {
 
+    String getName();
+
+    void addToParent(Component parent);
+
+    void show();
+
+    void hide();
+
 }