AndroidManifest.java

/* Copyright (c) 2002-2011 by XMLVM.org
 *
 * Project Info:  http://www.xmlvm.org
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 */

package android.internal;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

import android.R;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.util.Log;

class AndroidManifestParser extends DefaultHandler {

    private String                   prefix = "";
    private AndroidManifest          manifest;
    private AndroidManifest.Activity currentActivity;


    public AndroidManifestParser(AndroidManifest manifest) {
        this.manifest = manifest;
    }

    @Override
    public void startPrefixMapping(String prefix, String namespaceURI) {
        if (namespaceURI.equals("http://schemas.android.com/apk/res/android")) {
            this.prefix = prefix + ":";
        }
    }

    @Override
    public void startElement(String namespaceURI, String elementName, String qualifiedName, Attributes attributes) {
        if (qualifiedName.equals("application")) {
            // For now simply check for the Theme.Light string to enable NATIVE
            // theme instead of the dark Android theme
            String theme = attributes.getValue(prefix + "theme");
            if (theme != null && theme.equals("@android:style/Theme.Light")) {
                manifest.appTheme = R.style.Theme_Light;
            }
        }
        if (qualifiedName.equals("manifest")) {
            manifest.appPackage = attributes.getValue("package");
        }
        if (qualifiedName.equals("activity")) {
            currentActivity = new AndroidManifest.Activity();
            String className = attributes.getValue(prefix + "name");
            if (className.indexOf('.') == -1) {
                className = manifest.appPackage + '.' + className;
            }
            if (className.charAt(0) == '.') {
                className = manifest.appPackage + className;
            }
            currentActivity.className = className;

            String screenOrientation = attributes.getValue(prefix + "screenOrientation");
            if (screenOrientation == null) {
                return;
            }
            if (screenOrientation.equals("landscape")) {
                currentActivity.screenOrientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
            } else if (screenOrientation.equals("portrait")) {
                currentActivity.screenOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
            } else {
                Assert.NOT_IMPLEMENTED();
            }
        }
        if (qualifiedName.equals("action")) {
            String action = attributes.getValue(prefix + "name");
            manifest.addActivity(action, currentActivity);
        }
    }

    @Override
    public void endElement(String uri, String localName, String qName) throws SAXException {
    }
}


public class AndroidManifest {

    static class Activity {
        public String className;
        public int    screenOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
    }


    private final static AndroidManifest manifest   = new AndroidManifest();
    String                               appPackage;
    int                                  appTheme   = R.style.Theme;
    private Map<String, Activity>        activities = new HashMap<String, Activity>();
    private Map<String, String>          classes    = new HashMap<String, String>();


    public AndroidManifest() {
        String filePath = CommonDeviceAPIFinder.instance().getFileSystem().getPathForResource("AndroidManifest", "xml");
        if (filePath == null)
            Log.e("xmlvm", "Unable to locate AndroidManifest.xml file");
        
        SAXParserFactory factory = SAXParserFactory.newInstance();
        factory.setNamespaceAware(true);
        // Parse the input
        try {
            SAXParser saxParser = factory.newSAXParser();
            saxParser.parse(new FileInputStream(filePath), new AndroidManifestParser(this));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (SAXException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ParserConfigurationException e) {
            e.printStackTrace();
        }
    }

    void addActivity(String action, Activity activity) {
        activities.put(action, activity);
        classes.put(activity.className, action);
    }

    public static String getActivityClassName(String action) {
        Activity act = manifest.activities.get(action);
        if (act == null)
            return null;
        return act.className;
    }

    public static String getActionForClass(String className) {
        return manifest.classes.get(className);
    }

    public static int getActivityScreenOrientation(String action, Context context) {
        Activity act = manifest.activities.get(action);
        if (act == null) {
            if (!(context instanceof android.app.Activity)) {
                return ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
            }
            return ((android.app.Activity) context).getRequestedOrientation();
        }
        return act.screenOrientation;
    }

    public static String getPackageName() {
        return manifest.appPackage;
    }

    public static int getTheme() {
        return manifest.appTheme;
    }
}