MonacaWebView.java

package mobi.monaca.framework.view;

import java.io.IOException;

import mobi.monaca.framework.MonacaPageActivity;
import mobi.monaca.framework.util.MyLog;

import org.apache.cordova.Config;
import org.apache.cordova.CordovaWebView;
import org.apache.cordova.api.LOG;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import android.content.Context;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.res.AssetManager;
import android.content.res.XmlResourceParser;
import android.util.AttributeSet;
import android.view.KeyEvent;

public class MonacaWebView extends CordovaWebView {
	public static final String TAG = MonacaWebView.class.getSimpleName();

	public static final String INITIALIZATION_REQUEST_URL = "INITIALIZATION";
	public static final String INITIALIZATION_MADIATOR = "javascript:";
	public static final String INITIALIZATION_DESCRIPTION = "The connection to the server was unsuccessful.";
	public static final int INITIALIZATION_ERROR_CODE = -6;

	protected MonacaPageActivity page;
	protected Context context;
	private boolean notBackButton = true;

	@Deprecated
	public MonacaWebView(Context context, AttributeSet attrs, int defStyle,
			boolean privateBrowsing) {
		super(context, attrs, defStyle, privateBrowsing);
		this.context = context;
		init();
	}

	@Deprecated
	public MonacaWebView(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);
		this.context = context;
		init();
	}

	@Deprecated
	public MonacaWebView(Context context, AttributeSet attrs) {
		super(context, attrs);
		this.context = context;
		init();
	}

	public MonacaWebView(MonacaPageActivity page) {
		super(page);
		this.page = page;
		this.context = page.getContext();
		init();
	}

	protected void init() {
		resumeTimers();
		notBackButton = true;
	}

	@Override
	public void goBack() {
//		MyLog.d(TAG, "called goBack");
		super.goBack();
	}

	@Override
    public boolean onKeyUp(int keyCode, KeyEvent event) {
		if (page != null &&
				(keyCode == KeyEvent.KEYCODE_BACK && (page.hasBackButtonEventer() || page.hasOnTapBackButtonAction()))) {
			// if monaca has backbutton handler, do not call cordova backbutton event
			return true;
		} else {
			//to prevent from calling backHistory() by backbutton
			// TODO find smarter way
			notBackButton = !(this.canGoBack() && keyCode == KeyEvent.KEYCODE_BACK);
			boolean supersReturn = super.onKeyUp(keyCode, event);
			notBackButton = true;
			return supersReturn;
		}
	}

	@Override
	public void loadUrlIntoView(final String url) {
		if (url.equals(INITIALIZATION_REQUEST_URL)) {
			super.loadUrlIntoView(INITIALIZATION_MADIATOR);
		} else {
			super.loadUrlIntoView(url);
		}
	}

	@Override
	public boolean backHistory() {
//		MyLog.d(TAG, "backHistory()");
		//to prevent from calling backHistory() by backbutton
		// TODO find smarter way
		if (notBackButton) {
			return super.backHistory();
		} else {
			notBackButton = true;
			return false;
		}
	}


	@Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
		MyLog.d(TAG, "onKeyDown");
		if (keyCode == KeyEvent.KEYCODE_BACK) {
		//	 MonacaPageActivity uses BACK_BUTTON
			return false;
		} else {
			return super.onKeyDown(keyCode, event);
		}
	}
}