org.mariotaku.twidere.fragment.WebViewFragment.java Source code

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Here is the source code for org.mariotaku.twidere.fragment.WebViewFragment.java

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/*
 *            Twidere - Twitter client for Android
 * 
 * Copyright (C) 2012 Mariotaku Lee <mariotaku.lee@gmail.com>
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.mariotaku.twidere.fragment;

import static org.mariotaku.twidere.util.Utils.showErrorToast;

import org.mariotaku.twidere.activity.BaseActivity;

import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.net.Uri;
import android.net.http.SslError;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.SslErrorHandler;
import android.webkit.WebView;
import android.webkit.WebViewClient;

@SuppressLint("SetJavaScriptEnabled")
public class WebViewFragment extends BaseFragment {

    private WebView mWebView;

    public final WebView getWebView() {
        return mWebView;
    }

    public final void loadUrl(final String url) {
        mWebView.loadUrl(url == null ? "about:blank" : url);
    }

    @Override
    public void onActivityCreated(final Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        mWebView.setWebViewClient(new DefaultWebViewClient(getActivity()));
        mWebView.getSettings().setBuiltInZoomControls(true);
        mWebView.getSettings().setJavaScriptEnabled(true);
        final Bundle bundle = getArguments();
        if (bundle != null) {
            final String url = bundle.getString(INTENT_KEY_URI);
            loadUrl(url);
        }
    }

    @Override
    public View onCreateView(final LayoutInflater inflater, final ViewGroup container,
            final Bundle savedInstanceState) {
        return mWebView = new WebView(getActivity());
    }

    public final void setWebViewClient(final WebViewClient client) {
        mWebView.setWebViewClient(client);
    }

    public static class DefaultWebViewClient extends WebViewClient {

        private final FragmentActivity mActivity;
        private final SharedPreferences mPreferences;

        public DefaultWebViewClient(final FragmentActivity activity) {
            mActivity = activity;
            mPreferences = activity.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_PRIVATE);
        }

        @Override
        public void onPageFinished(final WebView view, final String url) {
            super.onPageFinished(view, url);
            if (mActivity instanceof BaseActivity) {
                mActivity.setTitle(view.getTitle());
                ((BaseActivity) mActivity).setSupportProgressBarIndeterminateVisibility(false);
            }
        }

        @Override
        public void onPageStarted(final WebView view, final String url, final Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
            if (mActivity instanceof BaseActivity) {
                ((BaseActivity) mActivity).setSupportProgressBarIndeterminateVisibility(true);
            }
        }

        @TargetApi(Build.VERSION_CODES.FROYO)
        @Override
        public void onReceivedSslError(final WebView view, final SslErrorHandler handler, final SslError error) {
            if (mPreferences.getBoolean(PREFERENCE_KEY_IGNORE_SSL_ERROR, false)) {
                handler.proceed();
            } else {
                handler.cancel();
            }
        }

        @Override
        public boolean shouldOverrideUrlLoading(final WebView view, final String url) {
            try {
                mActivity.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
            } catch (final ActivityNotFoundException e) {
                showErrorToast(mActivity, null, e, false);
            }
            return true;
        }
    }
}