PreferenceInflater.java

package com.WazaBe.HoloEverywhere.preference;

import java.io.IOException;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import android.content.Context;
import android.content.Intent;
import android.util.AttributeSet;

import com.WazaBe.HoloEverywhere.util.XmlUtils;

class PreferenceInflater extends GenericInflater<Preference, PreferenceGroup> {
	private static final String EXTRA_TAG_NAME = "extra";
	private static final String INTENT_TAG_NAME = "intent";

	private PreferenceManager mPreferenceManager;

	public PreferenceInflater(Context context,
			PreferenceManager preferenceManager) {
		super(context);
		init(preferenceManager);
	}

	public PreferenceInflater(
			GenericInflater<Preference, PreferenceGroup> original,
			PreferenceManager preferenceManager, Context newContext) {
		super(original, newContext);
		init(preferenceManager);
	}

	@Override
	public GenericInflater<Preference, PreferenceGroup> cloneInContext(
			Context newContext) {
		return new PreferenceInflater(this, mPreferenceManager, newContext);
	}

	private void init(PreferenceManager preferenceManager) {
		mPreferenceManager = preferenceManager;
		setDefaultPackage("com.WazaBe.HoloEverywhere.preference.");
	}

	@Override
	protected boolean onCreateCustomFromTag(XmlPullParser parser,
			Preference parentPreference, AttributeSet attrs)
			throws XmlPullParserException {
		final String tag = parser.getName();

		if (tag.equals(INTENT_TAG_NAME)) {
			Intent intent = null;

			try {
				intent = Intent.parseIntent(getContext().getResources(),
						parser, attrs);
			} catch (IOException e) {
				XmlPullParserException ex = new XmlPullParserException(
						"Error parsing preference");
				ex.initCause(e);
				throw ex;
			}

			if (intent != null) {
				parentPreference.setIntent(intent);
			}

			return true;
		} else if (tag.equals(EXTRA_TAG_NAME)) {
			getContext().getResources().parseBundleExtra(EXTRA_TAG_NAME, attrs,
					parentPreference.getExtras());
			try {
				XmlUtils.skipCurrentTag(parser);
			} catch (IOException e) {
				XmlPullParserException ex = new XmlPullParserException(
						"Error parsing preference");
				ex.initCause(e);
				throw ex;
			}
			return true;
		}

		return false;
	}

	@Override
	protected PreferenceGroup onMergeRoots(PreferenceGroup givenRoot,
			boolean attachToGivenRoot, PreferenceGroup xmlRoot) {
		// If we were given a Preferences, use it as the root (ignoring the root
		// Preferences from the XML file).
		if (givenRoot == null) {
			xmlRoot.onAttachedToHierarchy(mPreferenceManager);
			return xmlRoot;
		} else {
			return givenRoot;
		}
	}

}