Allow per-card menu resources

Example/src/main/java/com/kelsonprime/cardtree/example/MainActivity.java

@@ -1,61 +1,62 @@
 package com.kelsonprime.cardtree.example;
 
-import android.app.Activity;
 import android.os.Bundle;
 import android.util.Log;
+import android.view.Menu;
+import android.view.MenuItem;
 import android.view.View;
 
 import com.google.android.glass.app.Card;
+import com.kelsonprime.cardtree.CardTreeActivity;
 import com.kelsonprime.cardtree.Level;
 import com.kelsonprime.cardtree.Node;
 import com.kelsonprime.cardtree.Tree;
 
-public class MainActivity extends Activity {
+public class MainActivity extends CardTreeActivity {
     private static final String TAG = "MainActivity";
-    private Tree tree;
+
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        tree = new Tree(this);
+
+        Tree tree = getTree();
         Level root = tree.getRoot();
         Level second = new Level(tree);
 
         Card one = new Card(this);
-        one.setText("One");
+        one.setText("Dead End");
         root.add(new Node(one.toView()));
 
         Card two = new Card(this);
-        two.setText("Two");
+        two.setText("Submenu");
         root.add(new Node(two.toView(), second));
 
         Card a = new Card(this);
-        a.setText("A");
+        a.setText("Click Listened to");
         View viewA = a.toView();
         viewA.setOnClickListener(new ClickListener());
         second.add(new Node(viewA));
 
         Card b = new Card(this);
-        b.setText("B");
+        b.setText("I have a menu");
         View viewB = b.toView();
         viewB.setOnFocusChangeListener(new FocusListener());
-        second.add(new Node(viewB));
-
+        second.add(new Node(viewB, R.menu.sample));
 
         tree.showRoot();
         setContentView(tree);
     }
 
-    /**
-     * Kind of dirty hack to allow swipe down to go back.
-     */
     @Override
-    public void onBackPressed() {
-        Log.d(TAG, "Back pressed");
-        if(tree.isRootCurrent()){
-            super.onBackPressed();
-        }else{
-            tree.back();
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // Handle item selection. Menu items typically start another
+        // activity, start a service, or broadcast another intent.
+        switch (item.getItemId()) {
+            case R.id.exit:
+                finish();
+            default:
+                return super.onOptionsItemSelected(item);
         }
     }
 

Example/src/main/res/menu/sample.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:id="@+id/exit"
+        android:title="Exit" />
+</menu>

Lib/src/main/java/com/kelsonprime/cardtree/CardTreeActivity.java

@@ -0,0 +1,53 @@
+package com.kelsonprime.cardtree;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.Menu;
+import android.view.MenuItem;
+
+/**
+ * Created by kurt on 12/16/13.
+ */
+public class CardTreeActivity extends Activity {
+    private String TAG = "CardTreeActivity";
+    private Tree tree;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        tree = new Tree(this);
+    }
+
+    protected Tree getTree(){
+        return tree;
+    }
+
+    /**
+     * Kind of dirty hack to allow swipe down to go back.
+     */
+    @Override
+    public void onBackPressed() {
+        Log.d(TAG, "Back pressed");
+        if(tree.isRootCurrent()){
+            super.onBackPressed();
+        }else{
+            tree.back();
+        }
+    }
+
+    @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        if(getCurrentNode().hasMenu()){
+            menu.clear();
+            Integer activeMenu = getCurrentNode().getMenuRes();
+            getMenuInflater().inflate(activeMenu, menu);
+            return true;
+        }
+        return false;
+    }
+
+    private Node getCurrentNode(){
+        return getTree().getCurrentNode();
+    }
+}

Lib/src/main/java/com/kelsonprime/cardtree/Level.java

@@ -13,11 +13,14 @@ void click(int pos){
         click(this.get(pos));
     }
 
-    private void click(Node v){
-        if(v.hasChild()){
-            parent.enterLevel(v.getChild());
+    private void click(Node node){
+        if(node.hasChild()){
+            parent.enterLevel(node.getChild());
+        }else if(node.hasMenu()){
+            parent.showMenu();
+        }else{
+            node.click();
         }
-        v.click();
     }
 
     void focus(int pos, boolean hasFocus){

Lib/src/main/java/com/kelsonprime/cardtree/Node.java

@@ -1,28 +1,42 @@
 package com.kelsonprime.cardtree;
 
+import android.view.Menu;
 import android.view.View;
 
 public class Node {
     private static final String TAG = "Node";
     private final Level child;
     private final View view;
+    private final Integer menuRes;
 
     public Node(View view) {
-        this.child = null;
-        this.view = view;
-        view.setFocusable(true);
-        view.clearFocus();
+        this(view, null, null);
+    }
+
+    public Node(View view, Integer menuRes) {
+        this(view, null, menuRes);
     }
 
     public Node(View view, Level child){
+        this(view, child, null);
+    }
+
+    private Node(View view, Level child, Integer menuRes){
         this.child = child;
         this.view = view;
+        this.menuRes = menuRes;
+        view.setFocusable(true);
+        view.clearFocus();
     }
 
     public boolean hasChild() {
         return child != null;
     }
 
+    public boolean hasMenu() {
+        return menuRes != null;
+    }
+
     public Level getChild(){
         return child;
     }
@@ -31,6 +45,8 @@ public View getView(){
         return view;
     }
 
+    public int getMenuRes() { return menuRes; }
+
     void click(){
         view.performClick();
     }

Lib/src/main/java/com/kelsonprime/cardtree/Tree.java

@@ -1,7 +1,9 @@
 package com.kelsonprime.cardtree;
 
+import android.app.Activity;
 import android.content.Context;
 import android.util.Log;
+import android.view.Menu;
 import android.view.View;
 import android.widget.AdapterView;
 
@@ -15,9 +17,11 @@ public class Tree extends CardScrollView {
     private Level root;
     private Level currentLevel;
     private Stack<Level> backStack;
+    private Activity activity;
 
-    public Tree(Context context) {
-        super(context);
+    public Tree(Activity activity) {
+        super(activity);
+        this.activity = activity;
         this.backStack = new Stack<Level>();
         this.root = new Level(this);
         this.currentLevel = root;
@@ -66,12 +70,22 @@ public void back() {
 
     private void setLevel(Level level) {
         this.currentLevel = level;
-
         adapter.setCurrentLevel(level);
         setSelection(0);
         this.updateViews(true);
     }
 
+    // DON'T LOOK UNDER THIS LINE, I NEED TO MAKE THIS MESSAGE PASSING STUFF GO AWAY
+
+    /**
+     * Really gross way of doing this, I don't want to have to track the activity just for this.
+     */
+    void showMenu() {
+        activity.openOptionsMenu();
+    }
+
+    Node getCurrentNode() { return currentLevel.get(getSelectedItemPosition());}
+
     @Override
     protected void onUnsettled(int position) {
         super.onUnsettled(position);