2 * Copyright 2015-2016 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
6 * Privacy Browser is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * Privacy Browser is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser;
22 import android.annotation.SuppressLint;
23 import android.app.Activity;
24 import android.app.DownloadManager;
25 import android.content.Intent;
26 import android.content.SharedPreferences;
27 import android.content.res.Configuration;
28 import android.graphics.Bitmap;
29 import android.net.Uri;
30 import android.os.Build;
31 import android.os.Bundle;
32 import android.preference.PreferenceManager;
33 import android.support.design.widget.NavigationView;
34 import android.support.design.widget.Snackbar;
35 import android.support.v4.app.DialogFragment;
36 import android.support.v4.view.GravityCompat;
37 import android.support.v4.widget.DrawerLayout;
38 import android.support.v4.widget.SwipeRefreshLayout;
39 import android.support.v7.app.ActionBar;
40 import android.support.v7.app.ActionBarDrawerToggle;
41 import android.support.v7.app.AppCompatActivity;
42 import android.support.v7.app.AppCompatDialogFragment;
43 import android.support.v7.widget.Toolbar;
44 import android.util.Patterns;
45 import android.view.KeyEvent;
46 import android.view.Menu;
47 import android.view.MenuItem;
48 import android.view.View;
49 import android.view.inputmethod.InputMethodManager;
50 import android.webkit.CookieManager;
51 import android.webkit.DownloadListener;
52 import android.webkit.WebChromeClient;
53 import android.webkit.WebStorage;
54 import android.webkit.WebView;
55 import android.webkit.WebViewClient;
56 import android.widget.EditText;
57 import android.widget.FrameLayout;
58 import android.widget.ImageView;
59 import android.widget.ProgressBar;
61 import java.io.UnsupportedEncodingException;
62 import java.net.MalformedURLException;
64 import java.net.URLEncoder;
66 // We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21.
67 public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener {
68 // favoriteIcon is public static so it can be accessed from CreateHomeScreenShortcut.
69 public static Bitmap favoriteIcon;
70 // mainWebView is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onOptionsItemSelected(), onNavigationItemSelected(), and loadUrlFromTextBox().
71 public static WebView mainWebView;
73 // mainMenu is public static so it can be accessed from SettingsFragment. It is also used in onCreateOptionsMenu() and onOptionsItemSelected().
74 public static Menu mainMenu;
75 // cookieManager is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onOptionsItemSelected(), and onNavigationItemSelected().
76 public static CookieManager cookieManager;
77 // javaScriptEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), onOptionsItemSelected(), and loadUrlFromTextBox().
78 public static boolean javaScriptEnabled;
79 // firstPartyCookiesEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), onPrepareOptionsMenu(), and onOptionsItemSelected().
80 public static boolean firstPartyCookiesEnabled;
81 // thirdPartyCookiesEnabled is used in onCreate(), onCreateOptionsMenu(), onPrepareOptionsMenu(), and onOptionsItemSelected().
82 public static boolean thirdPartyCookiesEnabled;
83 // domStorageEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), and onOptionsItemSelected().
84 public static boolean domStorageEnabled;
85 // javaScriptDisabledSearchURL is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and loadURLFromTextBox().
86 public static String javaScriptDisabledSearchURL;
87 // javaScriptEnabledSearchURL is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and loadURLFromTextBox().
88 public static String javaScriptEnabledSearchURL;
89 // homepage is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and onOptionsItemSelected().
90 public static String homepage;
91 // swipeToRefresh is public static so it can be accessed from SettingsFragment. It is also used in onCreate().
92 public static SwipeRefreshLayout swipeToRefresh;
93 // swipeToRefreshEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate().
94 public static boolean swipeToRefreshEnabled;
96 // drawerToggle is used in onCreate(), onPostCreate(), onConfigurationChanged(), onNewIntent(), and onNavigationItemSelected().
97 private ActionBarDrawerToggle drawerToggle;
98 // drawerLayout is used in onCreate(), onNewIntent(), and onBackPressed().
99 private DrawerLayout drawerLayout;
100 // formattedUrlString is used in onCreate(), onOptionsItemSelected(), onCreateHomeScreenShortcutCreate(), and loadUrlFromTextBox().
101 private String formattedUrlString;
102 // privacyIcon is used in onCreateOptionsMenu() and updatePrivacyIcon().
103 private MenuItem privacyIcon;
104 // urlTextBox is used in onCreate(), onOptionsItemSelected(), and loadUrlFromTextBox().
105 private EditText urlTextBox;
106 // adView is used in onCreate() and onConfigurationChanged().
110 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. The whole premise of Privacy Browser is built around an understanding of these dangers.
111 @SuppressLint("SetJavaScriptEnabled")
112 protected void onCreate(Bundle savedInstanceState) {
113 super.onCreate(savedInstanceState);
114 setContentView(R.layout.main_coordinatorlayout);
116 // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21.
117 Toolbar supportAppBar = (Toolbar) findViewById(R.id.appBar);
118 setSupportActionBar(supportAppBar);
119 final ActionBar appBar = getSupportActionBar();
121 // This is needed to get rid of the Android Studio warning that appBar might be null.
122 assert appBar != null;
124 // Add the custom url_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar.
125 appBar.setCustomView(R.layout.url_bar);
126 appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
128 // Set the "go" button on the keyboard to load the URL in urlTextBox.
129 urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox);
130 urlTextBox.setOnKeyListener(new View.OnKeyListener() {
131 public boolean onKey(View v, int keyCode, KeyEvent event) {
132 // If the event is a key-down event on the "enter" button, load the URL.
133 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
134 // Load the URL into the mainWebView and consume the event.
136 loadUrlFromTextBox();
137 } catch (UnsupportedEncodingException e) {
140 // If the enter key was pressed, consume the event.
143 // If any other key was pressed, do not consume the event.
149 final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout);
151 // Implement swipe to refresh
152 swipeToRefresh = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
153 assert swipeToRefresh != null; //This assert removes the incorrect warning on the following line that swipeToRefresh might be null.
154 swipeToRefresh.setColorSchemeResources(R.color.blue);
155 swipeToRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
157 public void onRefresh() {
158 mainWebView.reload();
162 mainWebView = (WebView) findViewById(R.id.mainWebView);
164 // Create the navigation drawer.
165 drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
166 // The DrawerTitle identifies the drawer in accessibility mode.
167 drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer));
169 // Listen for touches on the navigation menu.
170 final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView);
171 assert navigationView != null; // This assert removes the incorrect warning on the following line that navigationView might be null.
172 navigationView.setNavigationItemSelectedListener(this);
174 // drawerToggle creates the hamburger icon at the start of the AppBar.
175 drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation);
177 mainWebView.setWebViewClient(new WebViewClient() {
178 // shouldOverrideUrlLoading makes this WebView the default handler for URLs inside the app, so that links are not kicked out to other apps.
180 public boolean shouldOverrideUrlLoading(WebView view, String url) {
181 mainWebView.loadUrl(url);
185 // Update the URL in urlTextBox when the page starts to load.
187 public void onPageStarted(WebView view, String url, Bitmap favicon) {
188 urlTextBox.setText(url);
191 // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load.
193 public void onPageFinished(WebView view, String url) {
194 formattedUrlString = url;
196 // Only update urlTextBox if the user is not typing in it.
197 if (!urlTextBox.hasFocus()) {
198 urlTextBox.setText(formattedUrlString);
203 mainWebView.setWebChromeClient(new WebChromeClient() {
204 // Update the progress bar when a page is loading.
206 public void onProgressChanged(WebView view, int progress) {
207 ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
208 progressBar.setProgress(progress);
209 if (progress < 100) {
210 progressBar.setVisibility(View.VISIBLE);
212 progressBar.setVisibility(View.GONE);
214 //Stop the SwipeToRefresh indicator if it is running
215 swipeToRefresh.setRefreshing(false);
219 // Set the favorite icon when it changes.
221 public void onReceivedIcon(WebView view, Bitmap icon) {
222 // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
225 // Place the favorite icon in the appBar.
226 ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
227 imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
230 // Enter full screen video
232 public void onShowCustomView(View view, CustomViewCallback callback) {
235 // Show the fullScreenVideoFrameLayout.
236 assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null.
237 fullScreenVideoFrameLayout.addView(view);
238 fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
240 // Hide the mainWebView.
241 mainWebView.setVisibility(View.GONE);
243 // Hide the ad if this is the free flavor.
244 BannerAd.hideAd(adView);
246 /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen.
247 * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen.
248 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them.
250 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
253 // Exit full screen video
254 public void onHideCustomView() {
257 // Show the mainWebView.
258 mainWebView.setVisibility(View.VISIBLE);
260 // Show the ad if this is the free flavor.
261 BannerAd.showAd(adView);
263 // Hide the fullScreenVideoFrameLayout.
264 assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null.
265 fullScreenVideoFrameLayout.removeAllViews();
266 fullScreenVideoFrameLayout.setVisibility(View.GONE);
270 // Allow the downloading of files.
271 mainWebView.setDownloadListener(new DownloadListener() {
272 // Launch the Android download manager when a link leads to a download.
274 public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
275 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
276 DownloadManager.Request requestUri = new DownloadManager.Request(Uri.parse(url));
278 // Add the URL as the description for the download.
279 requestUri.setDescription(url);
281 // Show the download notification after the download is completed.
282 requestUri.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
284 // Initiate the download and display a Snackbar.
285 downloadManager.enqueue(requestUri);
286 Snackbar.make(findViewById(R.id.mainWebView), R.string.download_started, Snackbar.LENGTH_SHORT).show();
290 // Allow pinch to zoom.
291 mainWebView.getSettings().setBuiltInZoomControls(true);
293 // Hide zoom controls.
294 mainWebView.getSettings().setDisplayZoomControls(false);
297 // Initialize the default preference values the first time the program is run.
298 PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
300 // Get the shared preference values.
301 SharedPreferences savedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
303 // Set JavaScript initial status. The default value is false.
304 javaScriptEnabled = savedPreferences.getBoolean("javascript_enabled", false);
305 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
307 // Initialize cookieManager.
308 cookieManager = CookieManager.getInstance();
310 // Set cookies initial status. The default value is false.
311 firstPartyCookiesEnabled = savedPreferences.getBoolean("first_party_cookies_enabled", false);
312 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
314 // Set third-party cookies initial status if API >= 21. The default value is false.
315 if (Build.VERSION.SDK_INT >= 21) {
316 thirdPartyCookiesEnabled = savedPreferences.getBoolean("third_party_cookies_enabled", false);
317 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
320 // Set DOM storage initial status. The default value is false.
321 domStorageEnabled = savedPreferences.getBoolean("dom_storage_enabled", false);
322 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
324 // Set the user agent initial status.
325 String userAgentString = savedPreferences.getString("user_agent", "Default user agent");
326 switch (userAgentString) {
327 case "Default user agent":
331 case "Custom user agent":
332 // Set the custom user agent on mainWebView, The default is "PrivacyBrowser/1.0".
333 mainWebView.getSettings().setUserAgentString(savedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"));
337 // Set the selected user agent on mainWebView. The default is "PrivacyBrowser/1.0".
338 mainWebView.getSettings().setUserAgentString(savedPreferences.getString("user_agent", "PrivacyBrowser/1.0"));
342 // Set the initial string for JavaScript disabled search.
343 if (savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=").equals("Custom URL")) {
344 // Get the custom URL string. The default is "".
345 javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search_custom_url", "");
347 // Use the string from javascript_disabled_search.
348 javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
351 // Set the initial string for JavaScript enabled search.
352 if (savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=").equals("Custom URL")) {
353 // Get the custom URL string. The default is "".
354 javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search_custom_url", "");
356 // Use the string from javascript_enabled_search.
357 javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
361 // Set homepage initial status. The default value is "https://www.duckduckgo.com".
362 homepage = savedPreferences.getString("homepage", "https://www.duckduckgo.com");
364 // Set swipe to refresh initial status. The default is true.
365 swipeToRefreshEnabled = savedPreferences.getBoolean("swipe_to_refresh_enabled", true);
366 swipeToRefresh.setEnabled(swipeToRefreshEnabled);
369 // Get the intent information that started the app.
370 final Intent intent = getIntent();
372 if (intent.getData() != null) {
373 // Get the intent data and convert it to a string.
374 final Uri intentUriData = intent.getData();
375 formattedUrlString = intentUriData.toString();
378 // If formattedUrlString is null assign the homepage to it.
379 if (formattedUrlString == null) {
380 formattedUrlString = homepage;
383 // Load the initial website.
384 mainWebView.loadUrl(formattedUrlString);
386 // Initialize AdView for the free flavor and request an ad. If this is not the free flavor BannerAd.requestAd() does nothing.
387 adView = findViewById(R.id.adView);
388 BannerAd.requestAd(adView);
393 protected void onNewIntent(Intent intent) {
394 // Sets the new intent as the activity intent, so that any future getIntent()s pick up this one instead of creating a new activity.
397 if (intent.getData() != null) {
398 // Get the intent data and convert it to a string.
399 final Uri intentUriData = intent.getData();
400 formattedUrlString = intentUriData.toString();
403 // Close the navigation drawer if it is open.
404 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
405 drawerLayout.closeDrawer(GravityCompat.START);
409 mainWebView.loadUrl(formattedUrlString);
411 // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
412 mainWebView.requestFocus();
416 public boolean onCreateOptionsMenu(Menu menu) {
417 // Inflate the menu; this adds items to the action bar if it is present.
418 getMenuInflater().inflate(R.menu.menu_options, menu);
420 // Set mainMenu so it can be used by onOptionsItemSelected.
423 // Initialize privacyIcon
424 privacyIcon = menu.findItem(R.id.toggleJavaScript);
426 // Get MenuItems for checkable menu items.
427 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
428 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
429 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
431 // Set the initial status of the privacy icon.
434 // Set the initial status of the menu item checkboxes.
435 toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
436 toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
437 toggleDomStorage.setChecked(domStorageEnabled);
443 public boolean onPrepareOptionsMenu(Menu menu) {
444 // Only enable Third-Party Cookies if SDK >= 21 and First-Party Cookies are enabled.
445 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
446 if ((Build.VERSION.SDK_INT >= 21) && firstPartyCookiesEnabled) {
447 toggleThirdPartyCookies.setEnabled(true);
449 toggleThirdPartyCookies.setEnabled(false);
452 // Enable Clear Cookies if there are any.
453 MenuItem clearCookies = menu.findItem(R.id.clearCookies);
454 clearCookies.setEnabled(cookieManager.hasCookies());
456 // Enable DOM Storage if JavaScript is enabled.
457 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
458 toggleDomStorage.setEnabled(javaScriptEnabled);
460 // Run all the other default commands.
461 super.onPrepareOptionsMenu(menu);
463 // return true displays the menu.
468 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
469 @SuppressLint("SetJavaScriptEnabled")
470 // removeAllCookies is deprecated, but it is required for API < 21.
471 @SuppressWarnings("deprecation")
472 public boolean onOptionsItemSelected(MenuItem menuItem) {
473 int menuItemId = menuItem.getItemId();
475 // Set the commands that relate to the menu entries.
476 switch (menuItemId) {
477 case R.id.toggleJavaScript:
478 // Switch the status of javaScriptEnabled.
479 javaScriptEnabled = !javaScriptEnabled;
481 // Apply the new JavaScript status.
482 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
484 // Update the privacy icon.
487 // Display a Snackbar.
488 if (javaScriptEnabled) {
489 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
491 if (firstPartyCookiesEnabled) {
492 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
494 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
498 // Reload the WebView.
499 mainWebView.reload();
502 case R.id.toggleFirstPartyCookies:
503 // Switch the status of firstPartyCookiesEnabled.
504 firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
506 // Update the menu checkbox.
507 menuItem.setChecked(firstPartyCookiesEnabled);
509 // Apply the new cookie status.
510 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
512 // Update the privacy icon.
515 // Reload the WebView.
516 mainWebView.reload();
519 case R.id.toggleThirdPartyCookies:
520 if (Build.VERSION.SDK_INT >= 21) {
521 // Switch the status of thirdPartyCookiesEnabled.
522 thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
524 // Update the menu checkbox.
525 menuItem.setChecked(thirdPartyCookiesEnabled);
527 // Apply the new cookie status.
528 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
530 // Reload the WebView.
531 mainWebView.reload();
532 } // Else do nothing because SDK < 21.
535 case R.id.toggleDomStorage:
536 // Switch the status of domStorageEnabled.
537 domStorageEnabled = !domStorageEnabled;
539 // Update the menu checkbox.
540 menuItem.setChecked(domStorageEnabled);
542 // Apply the new DOM Storage status.
543 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
545 // Reload the WebView.
546 mainWebView.reload();
549 case R.id.clearCookies:
550 if (Build.VERSION.SDK_INT < 21) {
551 cookieManager.removeAllCookie();
553 cookieManager.removeAllCookies(null);
555 Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
558 case R.id.clearDomStorage:
559 WebStorage webStorage = WebStorage.getInstance();
560 webStorage.deleteAllData();
561 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
565 Intent shareIntent = new Intent();
566 shareIntent.setAction(Intent.ACTION_SEND);
567 shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
568 shareIntent.setType("text/plain");
569 startActivity(Intent.createChooser(shareIntent, "Share URL"));
572 case R.id.addToHomescreen:
573 // Show the CreateHomeScreenShortcut AlertDialog and name this instance createShortcut.
574 AppCompatDialogFragment shortcutDialog = new CreateHomeScreenShortcut();
575 shortcutDialog.show(getSupportFragmentManager(), "createShortcut");
577 //Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below.
581 mainWebView.reload();
585 // Don't consume the event.
586 return super.onOptionsItemSelected(menuItem);
591 // removeAllCookies is deprecated, but it is required for API < 21.
592 @SuppressWarnings("deprecation")
593 public boolean onNavigationItemSelected(MenuItem menuItem) {
594 int menuItemId = menuItem.getItemId();
596 switch (menuItemId) {
598 mainWebView.loadUrl(homepage);
602 if (mainWebView.canGoBack()) {
603 mainWebView.goBack();
608 if (mainWebView.canGoForward()) {
609 mainWebView.goForward();
614 // Launch the system Download Manager.
615 Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
617 // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
618 downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
620 startActivity(downloadManagerIntent);
624 // Launch GuideActivity.
625 Intent guideIntent = new Intent(this, GuideActivity.class);
626 startActivity(guideIntent);
630 // Launch SettingsActivity.
631 Intent settingsIntent = new Intent(this, SettingsActivity.class);
632 startActivity(settingsIntent);
636 // Launch AboutActivity.
637 Intent aboutIntent = new Intent(this, AboutActivity.class);
638 startActivity(aboutIntent);
641 case R.id.clearAndExit:
642 // Clear cookies. The commands changed slightly in API 21.
643 if (Build.VERSION.SDK_INT >= 21) {
644 cookieManager.removeAllCookies(null);
646 cookieManager.removeAllCookie();
649 // Clear DOM storage.
650 WebStorage domStorage = WebStorage.getInstance();
651 domStorage.deleteAllData();
653 // Clear cache. The argument of "true" includes disk files.
654 mainWebView.clearCache(true);
656 // Clear the back/forward history.
657 mainWebView.clearHistory();
659 // Destroy the internal state of the webview.
660 mainWebView.destroy();
662 // Close Privacy Browser. finishAndRemoveTask also removes Privacy Browser from the recent app list.
663 if (Build.VERSION.SDK_INT >= 21) {
664 finishAndRemoveTask();
674 // Close the navigation drawer.
675 drawerLayout.closeDrawer(GravityCompat.START);
680 public void onPostCreate(Bundle savedInstanceState) {
681 super.onPostCreate(savedInstanceState);
683 // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
684 drawerToggle.syncState();
688 public void onConfigurationChanged(Configuration newConfig) {
689 super.onConfigurationChanged(newConfig);
691 // Reload the ad if this is the free flavor.
692 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
694 // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate().
695 adView = findViewById(R.id.adView);
699 public void onCreateHomeScreenShortcutCancel(DialogFragment dialog) {
700 // Do nothing because the user selected "Cancel".
704 public void onCreateHomeScreenShortcutCreate(DialogFragment dialog) {
705 // Get shortcutNameEditText from the alert dialog.
706 EditText shortcutNameEditText = (EditText) dialog.getDialog().findViewById(R.id.shortcutNameEditText);
708 // Create the bookmark shortcut based on formattedUrlString.
709 Intent bookmarkShortcut = new Intent();
710 bookmarkShortcut.setAction(Intent.ACTION_VIEW);
711 bookmarkShortcut.setData(Uri.parse(formattedUrlString));
713 // Place the bookmark shortcut on the home screen.
714 Intent placeBookmarkShortcut = new Intent();
715 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
716 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
717 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
718 placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
719 sendBroadcast(placeBookmarkShortcut);
722 // Override onBackPressed to handle the navigation drawer and mainWebView.
724 public void onBackPressed() {
725 final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
727 // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text.
728 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
729 drawerLayout.closeDrawer(GravityCompat.START);
731 // Load the previous URL if available.
732 assert mainWebView != null; //This assert removes the incorrect warning in Android Studio on the following line that mainWebView might be null.
733 if (mainWebView.canGoBack()) {
734 mainWebView.goBack();
736 // Pass onBackPressed to the system.
737 super.onBackPressed();
743 public void onPause() {
744 // We need to pause the adView or it will continue to consume resources in the background on the free flavor.
745 BannerAd.pauseAd(adView);
751 public void onResume() {
754 // We need to resume the adView for the free flavor.
755 BannerAd.resumeAd(adView);
758 private void loadUrlFromTextBox() throws UnsupportedEncodingException {
759 // Get the text from urlTextBox and convert it to a string.
760 String unformattedUrlString = urlTextBox.getText().toString();
761 URL unformattedUrl = null;
762 Uri.Builder formattedUri = new Uri.Builder();
764 // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
765 if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
766 // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
767 if (!unformattedUrlString.startsWith("http")) {
768 unformattedUrlString = "http://" + unformattedUrlString;
771 // Convert unformattedUrlString to a URL, then to a URI, and then back to a string, which sanitizes the input and adds in any missing components.
773 unformattedUrl = new URL(unformattedUrlString);
774 } catch (MalformedURLException e) {
778 // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
779 final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
780 final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
781 final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
782 final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
783 final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
785 formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
786 formattedUrlString = formattedUri.build().toString();
788 // Sanitize the search input and convert it to a DuckDuckGo search.
789 final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
791 // Use the correct search URL based on javaScriptEnabled.
792 if (javaScriptEnabled) {
793 formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
794 } else { // JavaScript is disabled.
795 formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
799 mainWebView.loadUrl(formattedUrlString);
801 // Hides the keyboard so we can see the webpage.
802 InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
803 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
806 private void updatePrivacyIcon() {
807 if (javaScriptEnabled) {
808 privacyIcon.setIcon(R.drawable.javascript_enabled);
810 if (firstPartyCookiesEnabled) {
811 privacyIcon.setIcon(R.drawable.warning);
813 privacyIcon.setIcon(R.drawable.privacy_mode);