1 files changed, 132 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/actionbar/SimpleMenuInflater.java b/src/com/android/gallery3d/actionbar/SimpleMenuInflater.java
new file mode 100644
index 000000000..885a4d3bc
--- /dev/null
+++ b/src/com/android/gallery3d/actionbar/SimpleMenuInflater.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.gallery3d.actionbar;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.content.res.XmlResourceParser;
+import android.util.AttributeSet;
+import android.util.Xml;
+import android.view.InflateException;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+
+public class SimpleMenuInflater {
+
+    private static final String TAG_MENU = "menu";
+    private static final String TAG_ITEM = "item";
+
+    private final Context mContext;
+
+    public SimpleMenuInflater(Context context) {
+        mContext = context;
+    }
+
+    public SimpleMenu inflate(SimpleMenu menu, int menuRes) throws InflateException {
+        XmlResourceParser parser = mContext.getResources().getXml(menuRes);
+        try {
+            return inflateInternal(menu, parser);
+        } catch (XmlPullParserException e) {
+            throw new InflateException(e);
+        } catch (IOException e) {
+            throw new InflateException(e);
+        } finally {
+            if (parser != null) parser.close();
+        }
+    }
+
+    private SimpleMenu inflateInternal(SimpleMenu menu, XmlPullParser parser)
+            throws XmlPullParserException, IOException {
+        int eventType = parser.getEventType();
+        do {
+            if (eventType == XmlPullParser.START_TAG) {
+                String tagName = parser.getName();
+                if (TAG_MENU.equals(tagName)) {
+                    eventType = parser.next();
+                    break;
+                }
+                throw new RuntimeException("unexpected tag: " + tagName);
+            }
+            eventType = parser.next();
+        } while (eventType != XmlPullParser.END_DOCUMENT);
+
+        if (menu == null) menu = new SimpleMenu();
+        AttributeSet attrs = Xml.asAttributeSet(parser);
+
+        boolean reachedEndOfMenu = false;
+        while (!reachedEndOfMenu) {
+            switch (eventType) {
+                case XmlPullParser.START_TAG: {
+                    String tagName = parser.getName();
+                    if (TAG_ITEM.equals(tagName)) {
+                        menu.addItem(parseItem(attrs));
+                    } else if (TAG_MENU.equals(tagName)) {
+                        throw new RuntimeException("nested menu not supported");
+                    } else {
+                        // ignore all other tags
+                        parser.next();
+                    }
+                    break;
+                }
+                case XmlPullParser.END_TAG: {
+                    String tagName = parser.getName();
+                    if (TAG_MENU.equals(tagName)) {
+                        reachedEndOfMenu = true;
+                        break;
+                    }
+                    break;
+                }
+                case XmlPullParser.END_DOCUMENT: {
+                    throw new RuntimeException("unexpected end of document");
+                }
+            }
+            eventType = parser.next();
+        }
+        return menu;
+    }
+
+    private static final String ATTR_ID = "id";
+    private static final String ATTR_ICON = "icon";
+    private static final String ATTR_TITLE = "title";
+    private static final String ATTR_VISIBLE = "visible";
+    private static final String ATTR_SHOW_AS_ACTION = "showAsAction";
+
+    private SimpleMenu.Item parseItem(AttributeSet attrs) {
+        SimpleMenu.Item item = new SimpleMenu.Item();
+        Resources res = mContext.getResources();
+        for (int i = 0, n = attrs.getAttributeCount(); i < n; ++i) {
+            String attrName = attrs.getAttributeName(i);
+            if (ATTR_ID.equals(attrName)) {
+                item.id = attrs.getAttributeResourceValue(i, 0);
+            } else if (ATTR_ICON.equals(attrName)) {
+                item.iconId = attrs.getAttributeResourceValue(i, 0);
+            } else if (ATTR_TITLE.equals(attrName)) {
+                int id = attrs.getAttributeResourceValue(i, 0);
+                item.title = id == 0 ? null : res.getString(id);
+            } else if (ATTR_VISIBLE.equals(attrName)) {
+                item.visible = attrs.getAttributeBooleanValue(i, true);
+            } else if (ATTR_SHOW_AS_ACTION.equals(attrName)) {
+                item.showAsAction = attrs.getAttributeIntValue(i, 0);
+            }
+        }
+        return item;
+    }
+
+}