com.wordpress.jftreading.BaseFragmentWebView.java Source code

Introduction

Here is the source code for com.wordpress.jftreading.BaseFragmentWebView.java

Source

/*******************************************************************************
 * Copyright (c) 2015 jftreading.wordpress.com.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * 
 * Contributors:
 *     jftreading.wordpress.com - email: machinehead449@gmail.com
 ******************************************************************************/
package com.wordpress.jftreading;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnKeyListener;
import android.webkit.DownloadListener;
import android.webkit.JavascriptInterface;
import android.webkit.JsResult;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;

@SuppressLint("SetJavaScriptEnabled")
public abstract class BaseFragmentWebView extends Fragment implements WebViewInterface {
    protected View fragmentView;
    protected WebView browser;
    protected boolean offlinePage;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        fragmentView = inflater.inflate(R.layout.webview_fragment, container, false);
        browser = (WebView) fragmentView.findViewById(R.id.webkit);
        browser.getSettings().setJavaScriptEnabled(true);
        browser.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                if (!networkIsUp() && !offlinePage) {
                    view.loadUrl(getErrorPage());
                    return true;
                }
                if (url.startsWith("http:") || url.startsWith("https:") || url.startsWith("file:")) {
                    return false;
                }
                Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
                startActivity(intent);
                return true;
            }
        });
        browser.setWebChromeClient(new WebChromeClient() {
            @Override
            public boolean onJsConfirm(WebView view, String url, String message, JsResult result) {
                return super.onJsConfirm(view, url, message, result);
            }
        });
        browser.setOnKeyListener(new OnKeyListener() {

            @Override
            public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (event.getAction() == KeyEvent.ACTION_DOWN) {
                    WebView webView = (WebView) v;

                    switch (keyCode) {
                    case KeyEvent.KEYCODE_BACK:
                        if (webView.canGoBack()) {
                            webView.goBack();
                            return true;
                        }
                        break;
                    }
                }
                return false;
            }
        });
        browser.setDownloadListener(new DownloadListener() {

            @Override
            public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype,
                    long contentLength) {
                Uri uri = Uri.parse(url);
                Intent intent = new Intent(Intent.ACTION_VIEW, uri);
                startActivity(intent);
            }
        });
        browser.addJavascriptInterface(new MyJavascriptInterface(), "Android");
        browser.loadUrl(linkSelector());
        return fragmentView;
    }

    private void refreshFragment() {
        Fragment fragment = this;
        getActivity().getSupportFragmentManager().beginTransaction().detach(this).attach(fragment).commit();
    }

    public class MyJavascriptInterface {
        @JavascriptInterface
        public void reloadPage() {
            refreshFragment();
        }
    }
}