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.DialogFragment;
24 import android.app.DownloadManager;
25 import android.content.Context;
26 import android.content.Intent;
27 import android.content.SharedPreferences;
28 import android.content.res.Configuration;
29 import android.graphics.Bitmap;
30 import android.graphics.drawable.BitmapDrawable;
31 import android.graphics.drawable.Drawable;
32 import android.net.Uri;
33 import android.net.http.SslCertificate;
34 import android.net.http.SslError;
35 import android.os.Build;
36 import android.os.Bundle;
37 import android.preference.PreferenceManager;
38 import android.print.PrintDocumentAdapter;
39 import android.print.PrintManager;
40 import android.support.annotation.NonNull;
41 import android.support.design.widget.NavigationView;
42 import android.support.design.widget.Snackbar;
43 import android.support.v4.app.ActivityCompat;
44 import android.support.v4.content.ContextCompat;
45 import android.support.v4.view.GravityCompat;
46 import android.support.v4.widget.DrawerLayout;
47 import android.support.v4.widget.SwipeRefreshLayout;
48 import android.support.v7.app.ActionBar;
49 import android.support.v7.app.ActionBarDrawerToggle;
50 import android.support.v7.app.AppCompatActivity;
51 import android.support.v7.app.AppCompatDialogFragment;
52 import android.support.v7.widget.Toolbar;
53 import android.text.Editable;
54 import android.text.TextWatcher;
55 import android.util.Patterns;
56 import android.view.ContextMenu;
57 import android.view.KeyEvent;
58 import android.view.Menu;
59 import android.view.MenuItem;
60 import android.view.View;
61 import android.view.inputmethod.InputMethodManager;
62 import android.webkit.CookieManager;
63 import android.webkit.DownloadListener;
64 import android.webkit.SslErrorHandler;
65 import android.webkit.WebChromeClient;
66 import android.webkit.WebStorage;
67 import android.webkit.WebView;
68 import android.webkit.WebViewClient;
69 import android.webkit.WebViewDatabase;
70 import android.widget.EditText;
71 import android.widget.FrameLayout;
72 import android.widget.ImageView;
73 import android.widget.LinearLayout;
74 import android.widget.ProgressBar;
75 import android.widget.RelativeLayout;
76 import android.widget.TextView;
78 import java.io.UnsupportedEncodingException;
79 import java.net.MalformedURLException;
81 import java.net.URLEncoder;
82 import java.util.HashMap;
85 // We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21.
86 public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener,
87 SslCertificateError.SslCertificateErrorListener, DownloadFile.DownloadFileListener, DownloadImage.DownloadImageListener {
89 // `appBar` is public static so it can be accessed from `OrbotProxyHelper`.
90 // It is also used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
91 public static ActionBar appBar;
93 // `favoriteIcon` is public static so it can be accessed from `CreateHomeScreenShortcut`, `BookmarksActivity`, `CreateBookmark`, `CreateBookmarkFolder`, and `EditBookmark`.
94 // It is also used in `onCreate()` and `onCreateHomeScreenShortcutCreate()`.
95 public static Bitmap favoriteIcon;
97 // `formattedUrlString` is public static so it can be accessed from `BookmarksActivity`.
98 // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onCreateHomeScreenShortcutCreate()`, and `loadUrlFromTextBox()`.
99 public static String formattedUrlString;
101 // `sslCertificate` is public static so it can be accessed from `ViewSslCertificate`. It is also used in `onCreate()`.
102 public static SslCertificate sslCertificate;
105 // 'mainWebView' is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, `onCreateContextMenu()`, `findPreviousOnPage()`, `findNextOnPage()`, `closeFindOnPage()`, and `loadUrlFromTextBox()`.
106 private WebView mainWebView;
108 // `swipeRefreshLayout` is used in `onCreate()`, `onPrepareOptionsMenu`, and `onRestart()`.
109 private SwipeRefreshLayout swipeRefreshLayout;
111 // `cookieManager` is used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`, and `onRestart()`.
112 private CookieManager cookieManager;
114 // `customHeader` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateContextMenu()`, and `loadUrlFromTextBox()`.
115 private final Map<String, String> customHeaders = new HashMap<>();
117 // `javaScriptEnabled` is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `applySettings()`.
118 // It is `Boolean` instead of `boolean` because `applySettings()` needs to know if it is `null`.
119 private Boolean javaScriptEnabled;
121 // `firstPartyCookiesEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
122 private boolean firstPartyCookiesEnabled;
124 // `thirdPartyCookiesEnabled` used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
125 private boolean thirdPartyCookiesEnabled;
127 // `domStorageEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
128 private boolean domStorageEnabled;
130 // `saveFormDataEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
131 private boolean saveFormDataEnabled;
133 // `swipeToRefreshEnabled` is used in `onPrepareOptionsMenu()` and `applySettings()`.
134 private boolean swipeToRefreshEnabled;
136 // 'homepage' is used in `onCreate()`, `onNavigationItemSelected()`, and `applySettings()`.
137 private String homepage;
139 // `javaScriptDisabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
140 private String javaScriptDisabledSearchURL;
142 // `javaScriptEnabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
143 private String javaScriptEnabledSearchURL;
145 // `mainMenu` is used in `onCreateOptionsMenu()` and `updatePrivacyIcons()`.
146 private Menu mainMenu;
148 // `drawerToggle` is used in `onCreate()`, `onPostCreate()`, `onConfigurationChanged()`, `onNewIntent()`, and `onNavigationItemSelected()`.
149 private ActionBarDrawerToggle drawerToggle;
151 // `drawerLayout` is used in `onCreate()`, `onNewIntent()`, and `onBackPressed()`.
152 private DrawerLayout drawerLayout;
154 // `urlTextBox` is used in `onCreate()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`.
155 private EditText urlTextBox;
157 // `adView` is used in `onCreate()` and `onConfigurationChanged()`.
160 // `sslErrorHandler` is used in `onCreate()`, `onSslErrorCancel()`, and `onSslErrorProceed`.
161 private SslErrorHandler sslErrorHandler;
163 // `findOnPageEditText` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
164 private EditText findOnPageEditText;
166 // `inputMethodManager` is used in `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `closeFindOnPage()`.
167 private InputMethodManager inputMethodManager;
170 // 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.
171 @SuppressLint("SetJavaScriptEnabled")
172 protected void onCreate(Bundle savedInstanceState) {
173 super.onCreate(savedInstanceState);
174 setContentView(R.layout.main_coordinatorlayout);
176 // Get a handle for `inputMethodManager`.
177 inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
179 // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21.
180 Toolbar supportAppBar = (Toolbar) findViewById(R.id.appBar);
181 setSupportActionBar(supportAppBar);
182 appBar = getSupportActionBar();
184 // This is needed to get rid of the Android Studio warning that appBar might be null.
185 assert appBar != null;
187 // Add the custom url_app_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar.
188 appBar.setCustomView(R.layout.url_app_bar);
189 appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
191 // Set the "go" button on the keyboard to load the URL in urlTextBox.
192 urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox);
193 urlTextBox.setOnKeyListener(new View.OnKeyListener() {
195 public boolean onKey(View v, int keyCode, KeyEvent event) {
196 // If the event is a key-down event on the `enter` button, load the URL.
197 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
198 // Load the URL into the mainWebView and consume the event.
200 loadUrlFromTextBox();
201 } catch (UnsupportedEncodingException e) {
204 // If the enter key was pressed, consume the event.
207 // If any other key was pressed, do not consume the event.
213 // Get handles for `fullScreenVideoFrameLayout`, `mainWebView`, and `find_on_page_edittext`.
214 final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout);
215 mainWebView = (WebView) findViewById(R.id.mainWebView);
216 findOnPageEditText = (EditText) findViewById(R.id.find_on_page_edittext);
218 // Update `findOnPageCountTextView`.
219 mainWebView.setFindListener(new WebView.FindListener() {
220 // Get a handle for `findOnPageCountTextView`.
221 TextView findOnPageCountTextView = (TextView) findViewById(R.id.find_on_page_count_textview);
224 public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, boolean isDoneCounting) {
225 if ((isDoneCounting) && (numberOfMatches == 0)) { // There are no matches.
226 // Set `findOnPageCountTextView` to `0/0`.
227 findOnPageCountTextView.setText(R.string.zero_of_zero);
228 } else if (isDoneCounting) { // There are matches.
229 // `activeMatchOrdinal` is zero-based.
230 int activeMatch = activeMatchOrdinal + 1;
232 // Set `findOnPageCountTextView`.
233 findOnPageCountTextView.setText(activeMatch + "/" + numberOfMatches);
238 // Search for the string on the page whenever a character changes in the `findOnPageEditText`.
239 findOnPageEditText.addTextChangedListener(new TextWatcher() {
241 public void beforeTextChanged(CharSequence s, int start, int count, int after) {
246 public void onTextChanged(CharSequence s, int start, int before, int count) {
251 public void afterTextChanged(Editable s) {
252 // Search for the text in `mainWebView`.
253 mainWebView.findAllAsync(findOnPageEditText.getText().toString());
257 // Set the `check mark` button for the `findOnPageEditText` keyboard to close the soft keyboard.
258 findOnPageEditText.setOnKeyListener(new View.OnKeyListener() {
260 public boolean onKey(View v, int keyCode, KeyEvent event) {
261 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { // The `enter` key was pressed.
262 // Hide the soft keyboard. `0` indicates no additional flags.
263 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
265 // Consume the event.
267 } else { // A different key was pressed.
268 // Do not consume the event.
274 // Implement swipe to refresh
275 swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
276 swipeRefreshLayout.setColorSchemeResources(R.color.blue_700);
277 swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
279 public void onRefresh() {
280 mainWebView.reload();
284 // Create the navigation drawer.
285 drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
286 // The `DrawerTitle` identifies the drawer in accessibility mode.
287 drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer));
289 // Listen for touches on the navigation menu.
290 final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView);
291 navigationView.setNavigationItemSelectedListener(this);
293 // Get handles for `navigationMenu` and the back and forward menu items. The menu is zero-based, so item 1 and 2 and the second and third items in the menu.
294 final Menu navigationMenu = navigationView.getMenu();
295 final MenuItem navigationBackMenuItem = navigationMenu.getItem(1);
296 final MenuItem navigationForwardMenuItem = navigationMenu.getItem(2);
298 // The `DrawerListener` allows us to update the Navigation Menu.
299 drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
301 public void onDrawerSlide(View drawerView, float slideOffset) {
305 public void onDrawerOpened(View drawerView) {
309 public void onDrawerClosed(View drawerView) {
313 public void onDrawerStateChanged(int newState) {
314 // Update the back and forward menu items every time the drawer opens.
315 navigationBackMenuItem.setEnabled(mainWebView.canGoBack());
316 navigationForwardMenuItem.setEnabled(mainWebView.canGoForward());
320 // drawerToggle creates the hamburger icon at the start of the AppBar.
321 drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation);
323 mainWebView.setWebViewClient(new WebViewClient() {
324 // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
325 // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24.
326 @SuppressWarnings("deprecation")
328 public boolean shouldOverrideUrlLoading(WebView view, String url) {
329 // Use an external email program if the link begins with "mailto:".
330 if (url.startsWith("mailto:")) {
331 // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
332 Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
334 // Parse the url and set it as the data for the `Intent`.
335 emailIntent.setData(Uri.parse(url));
337 // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
338 emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
341 startActivity(emailIntent);
343 } else { // Load the URL in Privacy Browser.
344 mainWebView.loadUrl(url, customHeaders);
349 // Update the URL in urlTextBox when the page starts to load.
351 public void onPageStarted(WebView view, String url, Bitmap favicon) {
352 // We need to update `formattedUrlString` at the beginning of the load, so that if the user toggles JavaScript during the load the new website is reloaded.
353 formattedUrlString = url;
355 // Display the loading URL is the URL text box.
356 urlTextBox.setText(url);
359 // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load.
361 public void onPageFinished(WebView view, String url) {
362 formattedUrlString = url;
364 // Only update urlTextBox if the user is not typing in it.
365 if (!urlTextBox.hasFocus()) {
366 urlTextBox.setText(formattedUrlString);
369 // Store the SSL certificate so it can be accessed from `ViewSslCertificate`.
370 sslCertificate = mainWebView.getCertificate();
373 // Handle SSL Certificate errors.
375 public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
376 // Store `handler` so it can be accesses from `onSslErrorCancel()` and `onSslErrorProceed()`.
377 sslErrorHandler = handler;
379 // Display the SSL error `AlertDialog`.
380 AppCompatDialogFragment sslCertificateErrorDialogFragment = SslCertificateError.displayDialog(error);
381 sslCertificateErrorDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.ssl_certificate_error));
385 mainWebView.setWebChromeClient(new WebChromeClient() {
386 // Update the progress bar when a page is loading.
388 public void onProgressChanged(WebView view, int progress) {
389 ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
390 progressBar.setProgress(progress);
391 if (progress < 100) {
392 progressBar.setVisibility(View.VISIBLE);
394 progressBar.setVisibility(View.GONE);
396 //Stop the `SwipeToRefresh` indicator if it is running
397 swipeRefreshLayout.setRefreshing(false);
401 // Set the favorite icon when it changes.
403 public void onReceivedIcon(WebView view, Bitmap icon) {
404 // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
407 // Place the favorite icon in the appBar.
408 ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
409 imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
412 // Enter full screen video
414 public void onShowCustomView(View view, CustomViewCallback callback) {
417 // Show the fullScreenVideoFrameLayout.
418 fullScreenVideoFrameLayout.addView(view);
419 fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
421 // Hide the mainWebView.
422 mainWebView.setVisibility(View.GONE);
424 // Hide the ad if this is the free flavor.
425 BannerAd.hideAd(adView);
427 /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen.
428 * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen.
429 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them.
431 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
434 // Exit full screen video
435 public void onHideCustomView() {
438 // Show the mainWebView.
439 mainWebView.setVisibility(View.VISIBLE);
441 // Show the ad if this is the free flavor.
442 BannerAd.showAd(adView);
444 // Hide the fullScreenVideoFrameLayout.
445 fullScreenVideoFrameLayout.removeAllViews();
446 fullScreenVideoFrameLayout.setVisibility(View.GONE);
450 // Register `mainWebView` for a context menu. This is used to see link targets and download images.
451 registerForContextMenu(mainWebView);
453 // Allow the downloading of files.
454 mainWebView.setDownloadListener(new DownloadListener() {
456 public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
457 // Show the `DownloadFile` `AlertDialog` and name this instance `@string/download`.
458 AppCompatDialogFragment downloadFileDialogFragment = DownloadFile.fromUrl(url, contentDisposition, contentLength);
459 downloadFileDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
463 // Allow pinch to zoom.
464 mainWebView.getSettings().setBuiltInZoomControls(true);
466 // Hide zoom controls.
467 mainWebView.getSettings().setDisplayZoomControls(false);
469 // Initialize cookieManager.
470 cookieManager = CookieManager.getInstance();
472 // Replace the header that `WebView` creates for `X-Requested-With` with a null value. The default value is the application ID (com.stoutner.privacybrowser.standard).
473 customHeaders.put("X-Requested-With", "");
475 // Initialize the default preference values the first time the program is run.
476 PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
478 // Apply the settings from the shared preferences.
481 // Get the intent information that started the app.
482 final Intent intent = getIntent();
484 if (intent.getData() != null) {
485 // Get the intent data and convert it to a string.
486 final Uri intentUriData = intent.getData();
487 formattedUrlString = intentUriData.toString();
490 // If formattedUrlString is null assign the homepage to it.
491 if (formattedUrlString == null) {
492 formattedUrlString = homepage;
495 // Load the initial website.
496 mainWebView.loadUrl(formattedUrlString, customHeaders);
498 // If the favorite icon is null, load the default.
499 if (favoriteIcon == null) {
500 // We have to use `ContextCompat` until API >= 21.
501 Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
502 BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
503 favoriteIcon = favoriteIconBitmapDrawable.getBitmap();
506 // Initialize AdView for the free flavor and request an ad. If this is not the free flavor BannerAd.requestAd() does nothing.
507 adView = findViewById(R.id.adView);
508 BannerAd.requestAd(adView);
513 protected void onNewIntent(Intent intent) {
514 // Sets the new intent as the activity intent, so that any future `getIntent()`s pick up this one instead of creating a new activity.
517 if (intent.getData() != null) {
518 // Get the intent data and convert it to a string.
519 final Uri intentUriData = intent.getData();
520 formattedUrlString = intentUriData.toString();
523 // Close the navigation drawer if it is open.
524 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
525 drawerLayout.closeDrawer(GravityCompat.START);
529 mainWebView.loadUrl(formattedUrlString, customHeaders);
531 // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
532 mainWebView.requestFocus();
536 public boolean onCreateOptionsMenu(Menu menu) {
537 // Inflate the menu; this adds items to the action bar if it is present.
538 getMenuInflater().inflate(R.menu.webview_options_menu, menu);
540 // Set mainMenu so it can be used by `onOptionsItemSelected()` and `updatePrivacyIcons`.
543 // Set the initial status of the privacy icons. `false` does not call `invalidateOptionsMenu` as the last step.
544 updatePrivacyIcons(false);
546 // Get handles for the menu items.
547 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
548 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
549 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
550 MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
552 // Only display third-Party Cookies if SDK >= 21
553 toggleThirdPartyCookies.setVisible(Build.VERSION.SDK_INT >= 21);
555 // Get the shared preference values. `this` references the current context.
556 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
558 // Set the status of the additional app bar icons. The default is `false`.
559 if (sharedPreferences.getBoolean("display_additional_app_bar_icons", false)) {
560 toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
561 toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
562 toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
563 } else { //Do not display the additional icons.
564 toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
565 toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
566 toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
573 public boolean onPrepareOptionsMenu(Menu menu) {
574 // Get handles for the menu items.
575 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
576 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
577 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
578 MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
579 MenuItem clearCookies = menu.findItem(R.id.clearCookies);
580 MenuItem clearFormData = menu.findItem(R.id.clearFormData);
581 MenuItem refreshMenuItem = menu.findItem(R.id.refresh);
583 // Set the status of the menu item checkboxes.
584 toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
585 toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
586 toggleDomStorage.setChecked(domStorageEnabled);
587 toggleSaveFormData.setChecked(saveFormDataEnabled);
589 // Enable third-party cookies if first-party cookies are enabled.
590 toggleThirdPartyCookies.setEnabled(firstPartyCookiesEnabled);
592 // Enable DOM Storage if JavaScript is enabled.
593 toggleDomStorage.setEnabled(javaScriptEnabled);
595 // Enable Clear Cookies if there are any.
596 clearCookies.setEnabled(cookieManager.hasCookies());
598 // Enable Clear Form Data is there is any.
599 WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
600 clearFormData.setEnabled(mainWebViewDatabase.hasFormData());
602 // Only show `Refresh` if `swipeToRefresh` is disabled.
603 refreshMenuItem.setVisible(!swipeToRefreshEnabled);
605 // Initialize font size variables.
606 int fontSize = mainWebView.getSettings().getTextZoom();
607 String fontSizeTitle;
608 MenuItem selectedFontSizeMenuItem;
610 // Prepare the font size title and current size menu item.
613 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.fifty_percent);
614 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeFiftyPercent);
618 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.seventy_five_percent);
619 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeSeventyFivePercent);
623 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
624 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
628 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_twenty_five_percent);
629 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredTwentyFivePercent);
633 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_fifty_percent);
634 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredFiftyPercent);
638 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_seventy_five_percent);
639 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredSeventyFivePercent);
643 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.two_hundred_percent);
644 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeTwoHundredPercent);
648 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
649 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
653 // Set the font size title and select the current size menu item.
654 MenuItem fontSizeMenuItem = menu.findItem(R.id.fontSize);
655 fontSizeMenuItem.setTitle(fontSizeTitle);
656 selectedFontSizeMenuItem.setChecked(true);
658 // Run all the other default commands.
659 super.onPrepareOptionsMenu(menu);
661 // `return true` displays the menu.
666 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
667 @SuppressLint("SetJavaScriptEnabled")
668 // removeAllCookies is deprecated, but it is required for API < 21.
669 @SuppressWarnings("deprecation")
670 public boolean onOptionsItemSelected(MenuItem menuItem) {
671 int menuItemId = menuItem.getItemId();
673 // Set the commands that relate to the menu entries.
674 switch (menuItemId) {
675 case R.id.toggleJavaScript:
676 // Switch the status of javaScriptEnabled.
677 javaScriptEnabled = !javaScriptEnabled;
679 // Apply the new JavaScript status.
680 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
682 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
683 updatePrivacyIcons(true);
685 // Display a `Snackbar`.
686 if (javaScriptEnabled) { // JavaScrip is enabled.
687 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
688 } else if (firstPartyCookiesEnabled) { // JavaScript is disabled, but first-party cookies are enabled.
689 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
690 } else { // Privacy mode.
691 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
694 // Reload the WebView.
695 mainWebView.reload();
698 case R.id.toggleFirstPartyCookies:
699 // Switch the status of firstPartyCookiesEnabled.
700 firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
702 // Update the menu checkbox.
703 menuItem.setChecked(firstPartyCookiesEnabled);
705 // Apply the new cookie status.
706 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
708 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
709 updatePrivacyIcons(true);
711 // Display a `Snackbar`.
712 if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
713 Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
714 } else if (javaScriptEnabled){ // JavaScript is still enabled.
715 Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
716 } else { // Privacy mode.
717 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
720 // Reload the WebView.
721 mainWebView.reload();
724 case R.id.toggleThirdPartyCookies:
725 if (Build.VERSION.SDK_INT >= 21) {
726 // Switch the status of thirdPartyCookiesEnabled.
727 thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
729 // Update the menu checkbox.
730 menuItem.setChecked(thirdPartyCookiesEnabled);
732 // Apply the new cookie status.
733 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
735 // Display a `Snackbar`.
736 if (thirdPartyCookiesEnabled) {
737 Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
739 Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
742 // Reload the WebView.
743 mainWebView.reload();
744 } // Else do nothing because SDK < 21.
747 case R.id.toggleDomStorage:
748 // Switch the status of domStorageEnabled.
749 domStorageEnabled = !domStorageEnabled;
751 // Update the menu checkbox.
752 menuItem.setChecked(domStorageEnabled);
754 // Apply the new DOM Storage status.
755 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
757 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
758 updatePrivacyIcons(true);
760 // Display a `Snackbar`.
761 if (domStorageEnabled) {
762 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_enabled, Snackbar.LENGTH_SHORT).show();
764 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_disabled, Snackbar.LENGTH_SHORT).show();
767 // Reload the WebView.
768 mainWebView.reload();
771 case R.id.toggleSaveFormData:
772 // Switch the status of saveFormDataEnabled.
773 saveFormDataEnabled = !saveFormDataEnabled;
775 // Update the menu checkbox.
776 menuItem.setChecked(saveFormDataEnabled);
778 // Apply the new form data status.
779 mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
781 // Display a `Snackbar`.
782 if (saveFormDataEnabled) {
783 Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_enabled, Snackbar.LENGTH_SHORT).show();
785 Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_disabled, Snackbar.LENGTH_SHORT).show();
788 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
789 updatePrivacyIcons(true);
791 // Reload the WebView.
792 mainWebView.reload();
795 case R.id.clearCookies:
796 if (Build.VERSION.SDK_INT < 21) {
797 cookieManager.removeAllCookie();
799 cookieManager.removeAllCookies(null);
801 Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
804 case R.id.clearDomStorage:
805 WebStorage webStorage = WebStorage.getInstance();
806 webStorage.deleteAllData();
807 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
810 case R.id.clearFormData:
811 WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
812 mainWebViewDatabase.clearFormData();
813 mainWebView.reload();
816 case R.id.fontSizeFiftyPercent:
817 mainWebView.getSettings().setTextZoom(50);
820 case R.id.fontSizeSeventyFivePercent:
821 mainWebView.getSettings().setTextZoom(75);
824 case R.id.fontSizeOneHundredPercent:
825 mainWebView.getSettings().setTextZoom(100);
828 case R.id.fontSizeOneHundredTwentyFivePercent:
829 mainWebView.getSettings().setTextZoom(125);
832 case R.id.fontSizeOneHundredFiftyPercent:
833 mainWebView.getSettings().setTextZoom(150);
836 case R.id.fontSizeOneHundredSeventyFivePercent:
837 mainWebView.getSettings().setTextZoom(175);
840 case R.id.fontSizeTwoHundredPercent:
841 mainWebView.getSettings().setTextZoom(200);
844 case R.id.find_on_page:
845 // Hide the URL app bar.
846 Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar);
847 appBarToolbar.setVisibility(View.GONE);
849 // Show the Find on Page `RelativeLayout`.
850 LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
851 findOnPageLinearLayout.setVisibility(View.VISIBLE);
853 // Display the keyboard. We have to wait 200 ms before running the command to work around a bug in Android.
854 // http://stackoverflow.com/questions/5520085/android-show-softkeyboard-with-showsoftinput-is-not-working
855 findOnPageEditText.postDelayed(new Runnable()
860 // Set the focus on `findOnPageEditText`.
861 findOnPageEditText.requestFocus();
863 // Display the keyboard.
864 inputMethodManager.showSoftInput(findOnPageEditText, 0);
870 Intent shareIntent = new Intent();
871 shareIntent.setAction(Intent.ACTION_SEND);
872 shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
873 shareIntent.setType("text/plain");
874 startActivity(Intent.createChooser(shareIntent, "Share URL"));
877 case R.id.addToHomescreen:
878 // Show the `CreateHomeScreenShortcut` `AlertDialog` and name this instance `@string/create_shortcut`.
879 AppCompatDialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut();
880 createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.create_shortcut));
882 //Everything else will be handled by `CreateHomeScreenShortcut` and the associated listener below.
886 // Get a `PrintManager` instance.
887 PrintManager printManager = (PrintManager) getSystemService(Context.PRINT_SERVICE);
889 // Convert `mainWebView` to `printDocumentAdapter`.
890 PrintDocumentAdapter printDocumentAdapter = mainWebView.createPrintDocumentAdapter();
892 // Print the document. The print attributes are `null`.
893 printManager.print(getResources().getString(R.string.privacy_browser_web_page), printDocumentAdapter, null);
897 mainWebView.reload();
901 // Don't consume the event.
902 return super.onOptionsItemSelected(menuItem);
906 // removeAllCookies is deprecated, but it is required for API < 21.
907 @SuppressWarnings("deprecation")
909 public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
910 int menuItemId = menuItem.getItemId();
912 switch (menuItemId) {
914 mainWebView.loadUrl(homepage, customHeaders);
918 if (mainWebView.canGoBack()) {
919 mainWebView.goBack();
924 if (mainWebView.canGoForward()) {
925 mainWebView.goForward();
930 // Launch BookmarksActivity.
931 Intent bookmarksIntent = new Intent(this, BookmarksActivity.class);
932 startActivity(bookmarksIntent);
936 // Launch the system Download Manager.
937 Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
939 // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
940 downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
942 startActivity(downloadManagerIntent);
946 // Launch `SettingsActivity`.
947 Intent settingsIntent = new Intent(this, SettingsActivity.class);
948 startActivity(settingsIntent);
952 // Launch `GuideActivity`.
953 Intent guideIntent = new Intent(this, GuideActivity.class);
954 startActivity(guideIntent);
958 // Launch `AboutActivity`.
959 Intent aboutIntent = new Intent(this, AboutActivity.class);
960 startActivity(aboutIntent);
963 case R.id.clearAndExit:
964 // Clear cookies. The commands changed slightly in API 21.
965 if (Build.VERSION.SDK_INT >= 21) {
966 cookieManager.removeAllCookies(null);
968 cookieManager.removeAllCookie();
971 // Clear DOM storage.
972 WebStorage domStorage = WebStorage.getInstance();
973 domStorage.deleteAllData();
976 WebViewDatabase formData = WebViewDatabase.getInstance(this);
977 formData.clearFormData();
979 // Clear cache. The argument of "true" includes disk files.
980 mainWebView.clearCache(true);
982 // Clear the back/forward history.
983 mainWebView.clearHistory();
985 // Clear any SSL certificate preferences.
986 mainWebView.clearSslPreferences();
988 // Clear `formattedUrlString`.
989 formattedUrlString = null;
991 // Clear `customHeaders`.
992 customHeaders.clear();
994 // Detach all views from `mainWebViewRelativeLayout`.
995 RelativeLayout mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.mainWebViewRelativeLayout);
996 mainWebViewRelativeLayout.removeAllViews();
998 // Destroy the internal state of `mainWebView`.
999 mainWebView.destroy();
1001 // Close Privacy Browser. `finishAndRemoveTask` also removes Privacy Browser from the recent app list.
1002 if (Build.VERSION.SDK_INT >= 21) {
1003 finishAndRemoveTask();
1008 // Remove the terminated program from RAM. The status code is `0`.
1016 // Close the navigation drawer.
1017 drawerLayout.closeDrawer(GravityCompat.START);
1022 public void onPostCreate(Bundle savedInstanceState) {
1023 super.onPostCreate(savedInstanceState);
1025 // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
1026 drawerToggle.syncState();
1030 public void onConfigurationChanged(Configuration newConfig) {
1031 super.onConfigurationChanged(newConfig);
1033 // Reload the ad if this is the free flavor.
1034 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
1036 // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate().
1037 adView = findViewById(R.id.adView);
1039 // `invalidateOptionsMenu` should recalculate the number of action buttons from the menu to display on the app bar, but it doesn't because of the this bug: https://code.google.com/p/android/issues/detail?id=20493#c8
1040 // ActivityCompat.invalidateOptionsMenu(this);
1044 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
1045 // Store the `HitTestResult`.
1046 final WebView.HitTestResult hitTestResult = mainWebView.getHitTestResult();
1049 final String imageUrl;
1050 final String linkUrl;
1052 switch (hitTestResult.getType()) {
1053 // `SRC_ANCHOR_TYPE` is a link.
1054 case WebView.HitTestResult.SRC_ANCHOR_TYPE:
1055 // Get the target URL.
1056 linkUrl = hitTestResult.getExtra();
1058 // Set the target URL as the title of the `ContextMenu`.
1059 menu.setHeaderTitle(linkUrl);
1061 // Add a `Load URL` button.
1062 menu.add(R.string.load_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1064 public boolean onMenuItemClick(MenuItem item) {
1065 mainWebView.loadUrl(linkUrl, customHeaders);
1070 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1071 menu.add(R.string.cancel);
1074 case WebView.HitTestResult.EMAIL_TYPE:
1075 // Get the target URL.
1076 linkUrl = hitTestResult.getExtra();
1078 // Set the target URL as the title of the `ContextMenu`.
1079 menu.setHeaderTitle(linkUrl);
1081 // Add a `Write Email` button.
1082 menu.add(R.string.write_email).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1084 public boolean onMenuItemClick(MenuItem item) {
1085 // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
1086 Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
1088 // Parse the url and set it as the data for the `Intent`.
1089 emailIntent.setData(Uri.parse("mailto:" + linkUrl));
1091 // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
1092 emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1095 startActivity(emailIntent);
1100 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1101 menu.add(R.string.cancel);
1104 // `IMAGE_TYPE` is an image.
1105 case WebView.HitTestResult.IMAGE_TYPE:
1106 // Get the image URL.
1107 imageUrl = hitTestResult.getExtra();
1109 // Set the image URL as the title of the `ContextMenu`.
1110 menu.setHeaderTitle(imageUrl);
1112 // Add a `View Image` button.
1113 menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1115 public boolean onMenuItemClick(MenuItem item) {
1116 mainWebView.loadUrl(imageUrl, customHeaders);
1121 // Add a `Download Image` button.
1122 menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1124 public boolean onMenuItemClick(MenuItem item) {
1125 // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
1126 AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
1127 downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
1132 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1133 menu.add(R.string.cancel);
1137 // `SRC_IMAGE_ANCHOR_TYPE` is an image that is also a link.
1138 case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
1139 // Get the image URL.
1140 imageUrl = hitTestResult.getExtra();
1142 // Set the image URL as the title of the `ContextMenu`.
1143 menu.setHeaderTitle(imageUrl);
1145 // Add a `View Image` button.
1146 menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1148 public boolean onMenuItemClick(MenuItem item) {
1149 mainWebView.loadUrl(imageUrl, customHeaders);
1154 // Add a `Download Image` button.
1155 menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1157 public boolean onMenuItemClick(MenuItem item) {
1158 // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
1159 AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
1160 downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
1165 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1166 menu.add(R.string.cancel);
1172 public void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment) {
1173 // Get shortcutNameEditText from the alert dialog.
1174 EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext);
1176 // Create the bookmark shortcut based on formattedUrlString.
1177 Intent bookmarkShortcut = new Intent();
1178 bookmarkShortcut.setAction(Intent.ACTION_VIEW);
1179 bookmarkShortcut.setData(Uri.parse(formattedUrlString));
1181 // Place the bookmark shortcut on the home screen.
1182 Intent placeBookmarkShortcut = new Intent();
1183 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
1184 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
1185 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
1186 placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
1187 sendBroadcast(placeBookmarkShortcut);
1191 public void onDownloadImage(AppCompatDialogFragment dialogFragment, String imageUrl) {
1192 // Get a handle for the system `DOWNLOAD_SERVICE`.
1193 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
1195 // Parse `imageUrl`.
1196 DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(imageUrl));
1198 // Get the file name from `dialogFragment`.
1199 EditText downloadImageNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_image_name);
1200 String imageName = downloadImageNameEditText.getText().toString();
1202 // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
1203 if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `imageName`.
1204 downloadRequest.setDestinationInExternalFilesDir(this, "/", imageName);
1205 } else { // Only set the title using `imageName`.
1206 downloadRequest.setTitle(imageName);
1209 // Allow `MediaScanner` to index the download if it is a media file.
1210 downloadRequest.allowScanningByMediaScanner();
1212 // Add the URL as the description for the download.
1213 downloadRequest.setDescription(imageUrl);
1215 // Show the download notification after the download is completed.
1216 downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
1218 // Initiate the download.
1219 downloadManager.enqueue(downloadRequest);
1223 public void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl) {
1224 // Get a handle for the system `DOWNLOAD_SERVICE`.
1225 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
1227 // Parse `downloadUrl`.
1228 DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(downloadUrl));
1230 // Get the file name from `dialogFragment`.
1231 EditText downloadFileNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_file_name);
1232 String fileName = downloadFileNameEditText.getText().toString();
1234 // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
1235 if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `fileName`.
1236 downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName);
1237 } else { // Only set the title using `fileName`.
1238 downloadRequest.setTitle(fileName);
1241 // Allow `MediaScanner` to index the download if it is a media file.
1242 downloadRequest.allowScanningByMediaScanner();
1244 // Add the URL as the description for the download.
1245 downloadRequest.setDescription(downloadUrl);
1247 // Show the download notification after the download is completed.
1248 downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
1250 // Initiate the download.
1251 downloadManager.enqueue(downloadRequest);
1254 public void viewSslCertificate(View view) {
1255 // Show the `ViewSslCertificate` `AlertDialog` and name this instance `@string/view_ssl_certificate`.
1256 DialogFragment viewSslCertificateDialogFragment = new ViewSslCertificate();
1257 viewSslCertificateDialogFragment.show(getFragmentManager(), getResources().getString(R.string.view_ssl_certificate));
1261 public void onSslErrorCancel() {
1262 sslErrorHandler.cancel();
1266 public void onSslErrorProceed() {
1267 sslErrorHandler.proceed();
1270 // Override onBackPressed to handle the navigation drawer and mainWebView.
1272 public void onBackPressed() {
1273 final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
1275 // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text.
1276 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
1277 drawerLayout.closeDrawer(GravityCompat.START);
1279 // Load the previous URL if available.
1280 if (mainWebView.canGoBack()) {
1281 mainWebView.goBack();
1283 // Pass onBackPressed to the system.
1284 super.onBackPressed();
1290 public void onPause() {
1291 // We need to pause the adView or it will continue to consume resources in the background on the free flavor.
1292 BannerAd.pauseAd(adView);
1298 public void onResume() {
1301 // We need to resume the adView for the free flavor.
1302 BannerAd.resumeAd(adView);
1306 public void onRestart() {
1309 // Apply the settings from shared preferences, which might have been changed in `SettingsActivity`.
1312 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
1313 updatePrivacyIcons(true);
1317 private void loadUrlFromTextBox() throws UnsupportedEncodingException {
1318 // Get the text from urlTextBox and convert it to a string. trim() removes white spaces from the beginning and end of the string.
1319 String unformattedUrlString = urlTextBox.getText().toString().trim();
1321 URL unformattedUrl = null;
1322 Uri.Builder formattedUri = new Uri.Builder();
1324 // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
1325 if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
1326 // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
1327 if (!unformattedUrlString.startsWith("http")) {
1328 unformattedUrlString = "http://" + unformattedUrlString;
1331 // 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.
1333 unformattedUrl = new URL(unformattedUrlString);
1334 } catch (MalformedURLException e) {
1335 e.printStackTrace();
1338 // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
1339 final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
1340 final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
1341 final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
1342 final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
1343 final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
1345 formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
1346 formattedUrlString = formattedUri.build().toString();
1348 // Sanitize the search input and convert it to a DuckDuckGo search.
1349 final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
1351 // Use the correct search URL.
1352 if (javaScriptEnabled) { // JavaScript is enabled.
1353 formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
1354 } else { // JavaScript is disabled.
1355 formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
1359 mainWebView.loadUrl(formattedUrlString, customHeaders);
1361 // Hides the keyboard so we can see the webpage. `0` indicates no additional flags.
1362 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
1365 public void findPreviousOnPage(View view) {
1366 // Go to the previous highlighted phrase on the page. `false` goes backwards instead of forwards.
1367 mainWebView.findNext(false);
1370 public void findNextOnPage(View view) {
1371 // Go to the next highlighted phrase on the page. `true` goes forwards instead of backwards.
1372 mainWebView.findNext(true);
1375 public void closeFindOnPage(View view) {
1376 // Delete the contents of `find_on_page_edittext`.
1377 findOnPageEditText.setText(null);
1379 // Clear the highlighted phrases.
1380 mainWebView.clearMatches();
1382 // Hide the Find on Page `RelativeLayout`.
1383 LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
1384 findOnPageLinearLayout.setVisibility(View.GONE);
1386 // Show the URL app bar.
1387 Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar);
1388 appBarToolbar.setVisibility(View.VISIBLE);
1390 // Hides the keyboard so we can see the webpage. `0` indicates no additional flags.
1391 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
1394 private void applySettings() {
1395 // Get the shared preference values. `this` references the current context.
1396 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
1398 // Store the values from `sharedPreferences` in variables.
1399 String userAgentString = sharedPreferences.getString("user_agent", "Default user agent");
1400 String customUserAgentString = sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0");
1401 String javaScriptDisabledSearchString = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
1402 String javaScriptDisabledCustomSearchString = sharedPreferences.getString("javascript_disabled_search_custom_url", "");
1403 String javaScriptEnabledSearchString = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
1404 String javaScriptEnabledCustomSearchString = sharedPreferences.getString("javascript_enabled_search_custom_url", "");
1405 String homepageString = sharedPreferences.getString("homepage", "https://www.duckduckgo.com");
1406 String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100");
1407 swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", false);
1408 boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", true);
1409 boolean proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
1411 // Because they can be modified on-the-fly by the user, these default settings are only applied when the program first runs.
1412 if (javaScriptEnabled == null) { // If `javaScriptEnabled` is null the program is just starting.
1413 // Get the values from `sharedPreferences`.
1414 javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false);
1415 firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false);
1416 thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false);
1417 domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false);
1418 saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false);
1420 // Apply the default settings.
1421 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
1422 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
1423 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
1424 mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
1425 mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString));
1427 // Set third-party cookies status if API >= 21.
1428 if (Build.VERSION.SDK_INT >= 21) {
1429 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
1433 // Apply the other settings from `sharedPreferences`.
1434 homepage = homepageString;
1435 swipeRefreshLayout.setEnabled(swipeToRefreshEnabled);
1437 // Set the user agent initial status.
1438 switch (userAgentString) {
1439 case "Default user agent":
1440 // Set the user agent to `""`, which uses the default value.
1441 mainWebView.getSettings().setUserAgentString("");
1444 case "Custom user agent":
1445 // Set the custom user agent.
1446 mainWebView.getSettings().setUserAgentString(customUserAgentString);
1450 // Use the selected user agent.
1451 mainWebView.getSettings().setUserAgentString(userAgentString);
1455 // Set JavaScript disabled search.
1456 if (javaScriptDisabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1457 javaScriptDisabledSearchURL = javaScriptDisabledCustomSearchString;
1458 } else { // Use the string from the pre-built list.
1459 javaScriptDisabledSearchURL = javaScriptDisabledSearchString;
1462 // Set JavaScript enabled search.
1463 if (javaScriptEnabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1464 javaScriptEnabledSearchURL = javaScriptEnabledCustomSearchString;
1465 } else { // Use the string from the pre-built list.
1466 javaScriptEnabledSearchURL = javaScriptEnabledSearchString;
1469 // Set Do Not Track status.
1470 if (doNotTrackEnabled) {
1471 customHeaders.put("DNT", "1");
1473 customHeaders.remove("DNT");
1476 // Set Orbot proxy status.
1477 if (proxyThroughOrbot) {
1478 // Set the proxy. `this` refers to the current activity where an `AlertDialog` might be displayed.
1479 OrbotProxyHelper.setProxy(getApplicationContext(), this, "localhost", "8118");
1480 } else { // Reset the proxy to default. The host is `""` and the port is `"0"`.
1481 OrbotProxyHelper.setProxy(getApplicationContext(), this, "", "0");
1485 private void updatePrivacyIcons(boolean runInvalidateOptionsMenu) {
1486 // Get handles for the icons.
1487 MenuItem privacyIcon = mainMenu.findItem(R.id.toggleJavaScript);
1488 MenuItem firstPartyCookiesIcon = mainMenu.findItem(R.id.toggleFirstPartyCookies);
1489 MenuItem domStorageIcon = mainMenu.findItem(R.id.toggleDomStorage);
1490 MenuItem formDataIcon = mainMenu.findItem(R.id.toggleSaveFormData);
1492 // Update `privacyIcon`.
1493 if (javaScriptEnabled) { // JavaScript is enabled.
1494 privacyIcon.setIcon(R.drawable.javascript_enabled);
1495 } else if (firstPartyCookiesEnabled) { // JavaScript is disabled but cookies are enabled.
1496 privacyIcon.setIcon(R.drawable.warning);
1497 } else { // All the dangerous features are disabled.
1498 privacyIcon.setIcon(R.drawable.privacy_mode);
1501 // Update `firstPartyCookiesIcon`.
1502 if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
1503 firstPartyCookiesIcon.setIcon(R.drawable.cookies_enabled);
1504 } else { // First-party cookies are disabled.
1505 firstPartyCookiesIcon.setIcon(R.drawable.cookies_disabled);
1508 // Update `domStorageIcon`.
1509 if (javaScriptEnabled && domStorageEnabled) { // Both JavaScript and DOM storage are enabled.
1510 domStorageIcon.setIcon(R.drawable.dom_storage_enabled);
1511 } else if (javaScriptEnabled) { // JavaScript is enabled but DOM storage is disabled.
1512 domStorageIcon.setIcon(R.drawable.dom_storage_disabled);
1513 } else { // JavaScript is disabled, so DOM storage is ghosted.
1514 domStorageIcon.setIcon(R.drawable.dom_storage_ghosted);
1517 // Update `formDataIcon`.
1518 if (saveFormDataEnabled) { // Form data is enabled.
1519 formDataIcon.setIcon(R.drawable.form_data_enabled);
1520 } else { // Form data is disabled.
1521 formDataIcon.setIcon(R.drawable.form_data_disabled);
1524 // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`. `this` references the current activity.
1525 if (runInvalidateOptionsMenu) {
1526 ActivityCompat.invalidateOptionsMenu(this);