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.coordinator_layout);
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);
120 final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout);
122 // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21.
123 final ActionBar appBar = getSupportActionBar();
125 // Implement swipe to refresh
126 swipeToRefresh = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
127 assert swipeToRefresh != null; //This assert removes the incorrect warning on the following line that swipeToRefresh might be null.
128 swipeToRefresh.setColorSchemeResources(R.color.blue);
129 swipeToRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
131 public void onRefresh() {
132 mainWebView.reload();
136 mainWebView = (WebView) findViewById(R.id.mainWebView);
138 if (appBar != null) {
139 // Add the custom url_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar.
140 appBar.setCustomView(R.layout.url_bar);
141 appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
143 // Set the "go" button on the keyboard to load the URL in urlTextBox.
144 urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox);
145 urlTextBox.setOnKeyListener(new View.OnKeyListener() {
146 public boolean onKey(View v, int keyCode, KeyEvent event) {
147 // If the event is a key-down event on the "enter" button, load the URL.
148 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
149 // Load the URL into the mainWebView and consume the event.
151 loadUrlFromTextBox();
152 } catch (UnsupportedEncodingException e) {
155 // If the enter key was pressed, consume the event.
158 // If any other key was pressed, do not consume the event.
165 // Create the navigation drawer.
166 drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
167 // The DrawerTitle identifies the drawer in accessibility mode.
168 drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer));
170 // Listen for touches on the navigation menu.
171 final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView);
172 assert navigationView != null; // This assert removes the incorrect warning on the following line that navigationView might be null.
173 navigationView.setNavigationItemSelectedListener(this);
175 // drawerToggle creates the hamburger icon at the start of the AppBar.
176 drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation);
178 mainWebView.setWebViewClient(new WebViewClient() {
179 // shouldOverrideUrlLoading makes this WebView the default handler for URLs inside the app, so that links are not kicked out to other apps.
181 public boolean shouldOverrideUrlLoading(WebView view, String url) {
182 mainWebView.loadUrl(url);
186 // Update the URL in urlTextBox when the page starts to load.
188 public void onPageStarted(WebView view, String url, Bitmap favicon) {
189 urlTextBox.setText(url);
192 // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load.
194 public void onPageFinished(WebView view, String url) {
195 formattedUrlString = url;
197 // Only update urlTextBox if the user is not typing in it.
198 if (!urlTextBox.hasFocus()) {
199 urlTextBox.setText(formattedUrlString);
204 mainWebView.setWebChromeClient(new WebChromeClient() {
205 // Update the progress bar when a page is loading.
207 public void onProgressChanged(WebView view, int progress) {
208 // Make sure that appBar is not null.
209 if (appBar != null) {
210 ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
211 progressBar.setProgress(progress);
212 if (progress < 100) {
213 progressBar.setVisibility(View.VISIBLE);
215 progressBar.setVisibility(View.GONE);
217 //Stop the SwipeToRefresh indicator if it is running
218 swipeToRefresh.setRefreshing(false);
223 // Set the favorite icon when it changes.
225 public void onReceivedIcon(WebView view, Bitmap icon) {
226 // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
229 // Place the favorite icon in the appBar if it is not null.
230 if (appBar != null) {
231 ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
232 imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
236 // Enter full screen video
238 public void onShowCustomView(View view, CustomViewCallback callback) {
239 if (appBar != null) {
243 // Show the fullScreenVideoFrameLayout.
244 assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null.
245 fullScreenVideoFrameLayout.addView(view);
246 fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
248 // Hide the mainWebView.
249 mainWebView.setVisibility(View.GONE);
251 // Hide the ad if this is the free flavor.
252 BannerAd.hideAd(adView);
254 /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen.
255 * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen.
256 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them.
259 // Set the one flag supported by API >= 14.
260 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
262 // Set the two flags that are supported by API >= 16.
263 if (Build.VERSION.SDK_INT >= 16) {
264 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN);
267 // Set all three flags that are supported by API >= 19.
268 if (Build.VERSION.SDK_INT >= 19) {
269 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
273 // Exit full screen video
274 public void onHideCustomView() {
275 if (appBar != null) {
279 // Show the mainWebView.
280 mainWebView.setVisibility(View.VISIBLE);
282 // Show the ad if this is the free flavor.
283 BannerAd.showAd(adView);
285 // Hide the fullScreenVideoFrameLayout.
286 assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null.
287 fullScreenVideoFrameLayout.removeAllViews();
288 fullScreenVideoFrameLayout.setVisibility(View.GONE);
292 // Allow the downloading of files.
293 mainWebView.setDownloadListener(new DownloadListener() {
294 // Launch the Android download manager when a link leads to a download.
296 public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
297 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
298 DownloadManager.Request requestUri = new DownloadManager.Request(Uri.parse(url));
300 // Add the URL as the description for the download.
301 requestUri.setDescription(url);
303 // Show the download notification after the download is completed.
304 requestUri.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
306 // Initiate the download and display a Snackbar.
307 downloadManager.enqueue(requestUri);
308 Snackbar.make(findViewById(R.id.mainWebView), R.string.download_started, Snackbar.LENGTH_SHORT).show();
312 // Allow pinch to zoom.
313 mainWebView.getSettings().setBuiltInZoomControls(true);
315 // Hide zoom controls.
316 mainWebView.getSettings().setDisplayZoomControls(false);
319 // Initialize the default preference values the first time the program is run.
320 PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
322 // Get the shared preference values.
323 SharedPreferences savedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
325 // Set JavaScript initial status. The default value is false.
326 javaScriptEnabled = savedPreferences.getBoolean("javascript_enabled", false);
327 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
329 // Initialize cookieManager.
330 cookieManager = CookieManager.getInstance();
332 // Set cookies initial status. The default value is false.
333 firstPartyCookiesEnabled = savedPreferences.getBoolean("first_party_cookies_enabled", false);
334 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
336 // Set third-party cookies initial status if API >= 21. The default value is false.
337 if (Build.VERSION.SDK_INT >= 21) {
338 thirdPartyCookiesEnabled = savedPreferences.getBoolean("third_party_cookies_enabled", false);
339 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
342 // Set DOM storage initial status. The default value is false.
343 domStorageEnabled = savedPreferences.getBoolean("dom_storage_enabled", false);
344 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
346 // Set the user agent initial status.
347 String userAgentString = savedPreferences.getString("user_agent", "Default user agent");
348 switch (userAgentString) {
349 case "Default user agent":
353 case "Custom user agent":
354 // Set the custom user agent on mainWebView, The default is "PrivacyBrowser/1.0".
355 mainWebView.getSettings().setUserAgentString(savedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"));
359 // Set the selected user agent on mainWebView. The default is "PrivacyBrowser/1.0".
360 mainWebView.getSettings().setUserAgentString(savedPreferences.getString("user_agent", "PrivacyBrowser/1.0"));
364 // Set the initial string for JavaScript disabled search.
365 if (savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=").equals("Custom URL")) {
366 // Get the custom URL string. The default is "".
367 javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search_custom_url", "");
369 // Use the string from javascript_disabled_search.
370 javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
373 // Set the initial string for JavaScript enabled search.
374 if (savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=").equals("Custom URL")) {
375 // Get the custom URL string. The default is "".
376 javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search_custom_url", "");
378 // Use the string from javascript_enabled_search.
379 javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
383 // Set homepage initial status. The default value is "https://www.duckduckgo.com".
384 homepage = savedPreferences.getString("homepage", "https://www.duckduckgo.com");
386 // Set swipe to refresh initial status. The default is true.
387 swipeToRefreshEnabled = savedPreferences.getBoolean("swipe_to_refresh_enabled", true);
388 swipeToRefresh.setEnabled(swipeToRefreshEnabled);
391 // Get the intent information that started the app.
392 final Intent intent = getIntent();
394 if (intent.getData() != null) {
395 // Get the intent data and convert it to a string.
396 final Uri intentUriData = intent.getData();
397 formattedUrlString = intentUriData.toString();
400 // If formattedUrlString is null assign the homepage to it.
401 if (formattedUrlString == null) {
402 formattedUrlString = homepage;
405 // Load the initial website.
406 mainWebView.loadUrl(formattedUrlString);
408 // Initialize AdView for the free flavor and request an ad. If this is not the free flavor BannerAd.requestAd() does nothing.
409 adView = findViewById(R.id.adView);
410 BannerAd.requestAd(adView);
415 protected void onNewIntent(Intent intent) {
416 // Sets the new intent as the activity intent, so that any future getIntent()s pick up this one instead of creating a new activity.
419 if (intent.getData() != null) {
420 // Get the intent data and convert it to a string.
421 final Uri intentUriData = intent.getData();
422 formattedUrlString = intentUriData.toString();
425 // Close the navigation drawer if it is open.
426 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
427 drawerLayout.closeDrawer(GravityCompat.START);
431 mainWebView.loadUrl(formattedUrlString);
433 // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
434 mainWebView.requestFocus();
438 public boolean onCreateOptionsMenu(Menu menu) {
439 // Inflate the menu; this adds items to the action bar if it is present.
440 getMenuInflater().inflate(R.menu.menu_options, menu);
442 // Set mainMenu so it can be used by onOptionsItemSelected.
445 // Initialize privacyIcon
446 privacyIcon = menu.findItem(R.id.toggleJavaScript);
448 // Get MenuItems for checkable menu items.
449 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
450 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
451 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
453 // Set the initial status of the privacy icon.
456 // Set the initial status of the menu item checkboxes.
457 toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
458 toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
459 toggleDomStorage.setChecked(domStorageEnabled);
465 public boolean onPrepareOptionsMenu(Menu menu) {
466 // Only enable Third-Party Cookies if SDK >= 21 and First-Party Cookies are enabled.
467 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
468 if ((Build.VERSION.SDK_INT >= 21) && firstPartyCookiesEnabled) {
469 toggleThirdPartyCookies.setEnabled(true);
471 toggleThirdPartyCookies.setEnabled(false);
474 // Enable Clear Cookies if there are any.
475 MenuItem clearCookies = menu.findItem(R.id.clearCookies);
476 clearCookies.setEnabled(cookieManager.hasCookies());
478 // Run all the other default commands.
479 super.onPrepareOptionsMenu(menu);
481 // return true displays the menu.
486 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
487 @SuppressLint("SetJavaScriptEnabled")
488 // removeAllCookies is deprecated, but it is required for API < 21.
489 @SuppressWarnings("deprecation")
490 public boolean onOptionsItemSelected(MenuItem menuItem) {
491 int menuItemId = menuItem.getItemId();
493 // Set the commands that relate to the menu entries.
494 switch (menuItemId) {
495 case R.id.toggleJavaScript:
496 // Switch the status of javaScriptEnabled.
497 javaScriptEnabled = !javaScriptEnabled;
499 // Apply the new JavaScript status.
500 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
502 // Update the privacy icon.
505 // Display a Snackbar.
506 if (javaScriptEnabled) {
507 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
509 if (domStorageEnabled || firstPartyCookiesEnabled) {
510 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
512 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
516 // Reload the WebView.
517 mainWebView.reload();
520 case R.id.toggleFirstPartyCookies:
521 // Switch the status of firstPartyCookiesEnabled.
522 firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
524 // Update the menu checkbox.
525 menuItem.setChecked(firstPartyCookiesEnabled);
527 // Apply the new cookie status.
528 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
530 // Update the privacy icon.
533 // Reload the WebView.
534 mainWebView.reload();
537 case R.id.toggleThirdPartyCookies:
538 if (Build.VERSION.SDK_INT >= 21) {
539 // Switch the status of thirdPartyCookiesEnabled.
540 thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
542 // Update the menu checkbox.
543 menuItem.setChecked(thirdPartyCookiesEnabled);
545 // Apply the new cookie status.
546 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
548 // Reload the WebView.
549 mainWebView.reload();
550 } // Else do nothing because SDK < 21.
553 case R.id.toggleDomStorage:
554 // Switch the status of domStorageEnabled.
555 domStorageEnabled = !domStorageEnabled;
557 // Update the menu checkbox.
558 menuItem.setChecked(domStorageEnabled);
560 // Apply the new DOM Storage status.
561 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
563 // Update the privacy icon.
566 // Reload the WebView.
567 mainWebView.reload();
570 case R.id.clearCookies:
571 if (Build.VERSION.SDK_INT < 21) {
572 cookieManager.removeAllCookie();
574 cookieManager.removeAllCookies(null);
576 Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
579 case R.id.clearDomStorage:
580 WebStorage webStorage = WebStorage.getInstance();
581 webStorage.deleteAllData();
582 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
586 Intent shareIntent = new Intent();
587 shareIntent.setAction(Intent.ACTION_SEND);
588 shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
589 shareIntent.setType("text/plain");
590 startActivity(Intent.createChooser(shareIntent, "Share URL"));
593 case R.id.addToHomescreen:
594 // Show the CreateHomeScreenShortcut AlertDialog and name this instance createShortcut.
595 AppCompatDialogFragment shortcutDialog = new CreateHomeScreenShortcut();
596 shortcutDialog.show(getSupportFragmentManager(), "createShortcut");
598 //Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below.
602 mainWebView.reload();
606 // Don't consume the event.
607 return super.onOptionsItemSelected(menuItem);
612 // removeAllCookies is deprecated, but it is required for API < 21.
613 @SuppressWarnings("deprecation")
614 public boolean onNavigationItemSelected(MenuItem menuItem) {
615 int menuItemId = menuItem.getItemId();
617 switch (menuItemId) {
619 mainWebView.loadUrl(homepage);
623 if (mainWebView.canGoBack()) {
624 mainWebView.goBack();
629 if (mainWebView.canGoForward()) {
630 mainWebView.goForward();
635 // Launch the system Download Manager.
636 Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
638 // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
639 downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
641 startActivity(downloadManagerIntent);
645 // Launch SettingsActivity.
646 Intent settingsIntent = new Intent(this, SettingsActivity.class);
647 startActivity(settingsIntent);
651 // Launch AboutActivity.
652 Intent aboutIntent = new Intent(this, AboutActivity.class);
653 startActivity(aboutIntent);
656 case R.id.clearAndExit:
657 // Clear DOM storage.
658 WebStorage domStorage = WebStorage.getInstance();
659 domStorage.deleteAllData();
661 // Clear cookies. The commands changed slightly in API 21.
662 if (Build.VERSION.SDK_INT >= 21) {
663 cookieManager.removeAllCookies(null);
665 cookieManager.removeAllCookie();
668 // Clear cache. The argument of "true" includes disk files.
669 mainWebView.clearCache(true);
671 // Clear the back/forward history.
672 mainWebView.clearHistory();
674 // Destroy the internal state of the webview.
675 mainWebView.destroy();
677 // Close Privacy Browser. finishAndRemoveTask also removes Privacy Browser from the recent app list.
678 if (Build.VERSION.SDK_INT >= 21) {
679 finishAndRemoveTask();
689 // Close the navigation drawer.
690 drawerLayout.closeDrawer(GravityCompat.START);
695 public void onPostCreate(Bundle savedInstanceState) {
696 super.onPostCreate(savedInstanceState);
698 // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
699 drawerToggle.syncState();
703 public void onConfigurationChanged(Configuration newConfig) {
704 super.onConfigurationChanged(newConfig);
706 // Reload the ad if this is the free flavor.
707 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
709 // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate().
710 adView = findViewById(R.id.adView);
714 public void onCreateHomeScreenShortcutCancel(DialogFragment dialog) {
715 // Do nothing because the user selected "Cancel".
719 public void onCreateHomeScreenShortcutCreate(DialogFragment dialog) {
720 // Get shortcutNameEditText from the alert dialog.
721 EditText shortcutNameEditText = (EditText) dialog.getDialog().findViewById(R.id.shortcutNameEditText);
723 // Create the bookmark shortcut based on formattedUrlString.
724 Intent bookmarkShortcut = new Intent();
725 bookmarkShortcut.setAction(Intent.ACTION_VIEW);
726 bookmarkShortcut.setData(Uri.parse(formattedUrlString));
728 // Place the bookmark shortcut on the home screen.
729 Intent placeBookmarkShortcut = new Intent();
730 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
731 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
732 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
733 placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
734 sendBroadcast(placeBookmarkShortcut);
737 // Override onBackPressed to handle the navigation drawer and mainWebView.
739 public void onBackPressed() {
740 final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
742 // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text.
743 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
744 drawerLayout.closeDrawer(GravityCompat.START);
746 // Load the previous URL if available.
747 assert mainWebView != null; //This assert removes the incorrect warning on the following line that mainWebView might be null.
748 if (mainWebView.canGoBack()) {
749 mainWebView.goBack();
751 // Pass onBackPressed to the system.
752 super.onBackPressed();
758 public void onPause() {
759 // We need to pause the adView or it will continue to consume resources in the background on the free flavor.
760 BannerAd.pauseAd(adView);
766 public void onResume() {
769 // We need to resume the adView for the free flavor.
770 BannerAd.resumeAd(adView);
773 private void loadUrlFromTextBox() throws UnsupportedEncodingException {
774 // Get the text from urlTextBox and convert it to a string.
775 String unformattedUrlString = urlTextBox.getText().toString();
776 URL unformattedUrl = null;
777 Uri.Builder formattedUri = new Uri.Builder();
779 // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
780 if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
781 // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
782 if (!unformattedUrlString.startsWith("http")) {
783 unformattedUrlString = "http://" + unformattedUrlString;
786 // 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.
788 unformattedUrl = new URL(unformattedUrlString);
789 } catch (MalformedURLException e) {
793 // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
794 final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
795 final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
796 final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
797 final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
798 final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
800 formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
801 formattedUrlString = formattedUri.build().toString();
803 // Sanitize the search input and convert it to a DuckDuckGo search.
804 final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
806 // Use the correct search URL based on javaScriptEnabled.
807 if (javaScriptEnabled) {
808 formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
809 } else { // JavaScript is disabled.
810 formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
814 mainWebView.loadUrl(formattedUrlString);
816 // Hides the keyboard so we can see the webpage.
817 InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
818 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
821 private void updatePrivacyIcon() {
822 if (javaScriptEnabled) {
823 privacyIcon.setIcon(R.drawable.javascript_enabled);
825 if (domStorageEnabled || firstPartyCookiesEnabled) {
826 privacyIcon.setIcon(R.drawable.warning);
828 privacyIcon.setIcon(R.drawable.privacy_mode);