yet.another.hackernews.reader.ViewFragment.java Source code

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Here is the source code for yet.another.hackernews.reader.ViewFragment.java

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/*******************************************************************************
 * Copyright 2012 Niklas Ekman
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 *******************************************************************************/
package yet.another.hackernews.reader;

import org.json.JSONException;
import org.json.JSONObject;

import yet.another.hackernews.reader.data.News;
import yet.another.hackernews.reader.functions.ProgressFragment.OnProgressListener;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.actionbarsherlock.app.SherlockFragment;

public class ViewFragment extends SherlockFragment implements OnProgressListener {

    private WebView menuBrowser;
    private static News news;

    public static void setNews(News news) {
        ViewFragment.news = news;
    }

    public static News getNews() {
        return ViewFragment.news;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        return inflater.inflate(R.layout.layout_view, container, false);
    }

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

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

        menuBrowser = (WebView) getSherlockActivity().findViewById(R.id.view_webview);

        final ProgressBar progressBar = (ProgressBar) getSherlockActivity().findViewById(R.id.view_progress);

        webviewSettings();

        menuBrowser.setWebChromeClient(new WebChromeClient() {
            @Override
            public void onProgressChanged(WebView view, int progress) {
                // Hide dialog on finished
                if (progress >= 100) {
                    progressBar.setVisibility(View.GONE);
                } else {
                    progressBar.setProgress(progress);
                }

            }
        });

        menuBrowser.setWebViewClient(new WebViewClient() {
            @Override
            public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {

                progressBar.setVisibility(View.GONE);

                Toast.makeText(getActivity().getApplicationContext(), R.string.error, Toast.LENGTH_SHORT).show();
            }
        });

        final Bundle recieveArgs = this.getSherlockActivity().getIntent().getExtras();

        if (recieveArgs != null) {
            try {
                news = new News(new JSONObject(recieveArgs.getString("NewsObject")));
            } catch (JSONException e) {
            }

            update(progressBar);
        }
    }

    public void update(ProgressBar progressBar) {
        if (news == null) {
            return;
        }

        if (progressBar == null) {
            progressBar = (ProgressBar) getSherlockActivity().findViewById(R.id.view_progress);
        }

        if (progressBar.getVisibility() != View.VISIBLE) {
            progressBar.setVisibility(View.VISIBLE);
        }

        if (menuBrowser.getProgress() < 100) {
            menuBrowser.stopLoading();
        }

        menuBrowser.loadUrl(news.getURL());
    }

    @Override
    public void onPause() {
        super.onPause();

        OnProgressCancel();
    }

    @Override
    public void OnProgressCancel() {
        if (menuBrowser.getProgress() < 100) {
            menuBrowser.stopLoading();
        }
    }

    private void webviewSettings() {
        final WebSettings settings = menuBrowser.getSettings();
        settings.setJavaScriptEnabled(true);
    }

}