Magic Cube

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2020 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Magic Cube.                                                              //

//                                                                                               //

// Magic Cube is free software: you can redistribute it and/or modify                            //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Magic Cube 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 General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Magic Cube.  If not, see <http://www.gnu.org/licenses/>.                           //

///////////////////////////////////////////////////////////////////////////////////////////////////

package org.distorted.tutorial;

import android.annotation.SuppressLint;

import android.content.Context;

import android.content.res.Resources;

import android.webkit.WebSettings;

import android.webkit.WebView;

import org.distorted.main.R;

import java.io.BufferedReader;

import java.io.InputStream;

import java.io.InputStreamReader;

///////////////////////////////////////////////////////////////////////////////////////////////////

public class TutorialWebView

{

    private String  mUrl;

    private Context mContext;

    private WebView mWebView;

///////////////////////////////////////////////////////////////////////////////////////////////////

    @SuppressLint("SetJavaScriptEnabled")

    public TutorialWebView(Context context, WebView webview)

      {

      mWebView = webview;

      mContext = context;

      mWebView.setBackgroundColor(0);

      mWebView.getSettings().setJavaScriptEnabled(true);

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void load(String url)

      {

      mUrl = url;

      String data = readFromfile(mContext);

      data = data.replace("%1", url);

android.util.Log.e("webview", "data= "+data);

mWebView.getSettings().setAppCacheMaxSize( 10 * 1024 * 1024 ); // 10MB

mWebView.getSettings().setAppCachePath(mContext.getCacheDir().getAbsolutePath() );

mWebView.getSettings().setAllowFileAccess( true );

mWebView.getSettings().setAppCacheEnabled( true );

mWebView.getSettings().setCacheMode( WebSettings.LOAD_DEFAULT );

      mWebView.loadData(data, "text/html", "UTF-8");

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public String readFromfile(Context context)

      {

      StringBuilder returnString = new StringBuilder();

      InputStream fIn       = null;

      InputStreamReader isr = null;

      BufferedReader input  = null;

      try

        {

        Resources res = context.getResources();

        fIn = res.openRawResource(R.raw.webvideo);

        isr = new InputStreamReader(fIn);

        input = new BufferedReader(isr);

        String line;

        while ((line = input.readLine()) != null)

          {

          returnString.append(line);

          }

        }

      catch (Exception e)

        {

        e.getMessage();

        }

      finally

        {

        try

          {

          if (isr   != null) isr.close();

          if (fIn   != null) fIn.close();

          if (input != null) input.close();

          }

        catch (Exception e2)

          {

          e2.getMessage();

          }

        }

      return returnString.toString();

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    public void reload()

      {

      if (mUrl!=null)

        {

        load(mUrl);

        }

      }

}