BrowserViewsFragmentActivity.java

package org.softeg.slartus.forpdaplus.classes;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.KeyEvent;
import android.view.View;
import android.webkit.WebView;
import android.widget.SeekBar;
import android.widget.TextView;

import com.afollestad.materialdialogs.MaterialDialog;

import org.softeg.slartus.forpdaplus.R;
import org.softeg.slartus.forpdaplus.prefs.Preferences;

/**
 * Created by IntelliJ IDEA.
 * User: slinkin
 * Date: 16.10.12
 * Time: 8:35
 * To change this template use File | Settings | File Templates.
 */
public abstract class BrowserViewsFragmentActivity extends AppCompatActivity implements IWebViewContainer {
    public abstract String Prefix();

    public abstract WebView getWebView();


    WebViewExternals m_WebViewExternals;

    public WebViewExternals getWebViewExternals() {
        if (m_WebViewExternals == null)
            m_WebViewExternals = new WebViewExternals(this);
        return m_WebViewExternals;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

    }

    @Override
    public void onDestroy()
    {
        WebView mWebView= getWebView();
        // null out before the super call
        if (mWebView != null)
        {
            mWebView.setWebChromeClient(null);
            mWebView.setWebViewClient(null);
            mWebView.removeAllViews();
            mWebView.loadUrl("about:blank");
            mWebView = null;
        }
        super.onDestroy();
    }


    protected void setWebViewSettings(Boolean loadImagesAutomaticallyAlways) {
        getWebViewExternals().setWebViewSettings(loadImagesAutomaticallyAlways);

    }

    public void setWebViewSettings() {
        setWebViewSettings(false);
    }

    public void onPrepareOptionsMenu() {
        getWebViewExternals().onPrepareOptionsMenu();
    }

    /*@Override
    protected void loadPreferences(SharedPreferences prefs) {
        super.loadPreferences(prefs);
        getWebViewExternals().loadPreferences(prefs);

    }*/

    @Override
    public boolean dispatchKeyEvent(KeyEvent event) {
        return getWebViewExternals().dispatchKeyEvent(event);
    }

    public boolean dispatchSuperKeyEvent(KeyEvent event) {
        return super.dispatchKeyEvent(event);
    }

    public void showFontSizeDialog() {
        View v = getLayoutInflater().inflate(R.layout.font_size_dialog, null);

        assert v != null;
        final SeekBar seekBar = (SeekBar) v.findViewById(R.id.value_seekbar);
        seekBar.setProgress(Preferences.getFontSize(Prefix()) - 1);
        final TextView textView = (TextView) v.findViewById(R.id.value_textview);
        textView.setText((seekBar.getProgress() + 1) + "");

        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int i, boolean b) {
                getWebView().getSettings().setDefaultFontSize(i + 1);
                textView.setText((i + 1) + "");
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

            }
        });
        new MaterialDialog.Builder(this)
                .title(R.string.font_size)
                .customView(v,true)
                .positiveText(R.string.ok)
                .negativeText(R.string.cancel)
                .callback(new MaterialDialog.ButtonCallback() {
                    @Override
                    public void onPositive(MaterialDialog dialog) {
                        Preferences.setFontSize(Prefix(), seekBar.getProgress() + 1);
                    }
                    @Override
                    public void onNegative(MaterialDialog dialog) {
                        getWebView().getSettings().setDefaultFontSize(Preferences.Topic.getFontSize());
                    }
                })
                .show();

    }
}