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 // Make sure that appBar is not null.
208 if (appBar != null) {
209 ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
210 progressBar.setProgress(progress);
211 if (progress < 100) {
212 progressBar.setVisibility(View.VISIBLE);
214 progressBar.setVisibility(View.GONE);
216 //Stop the SwipeToRefresh indicator if it is running
217 swipeToRefresh.setRefreshing(false);
222 // Set the favorite icon when it changes.
224 public void onReceivedIcon(WebView view, Bitmap icon) {
225 // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
228 // Place the favorite icon in the appBar if it is not null.
229 if (appBar != null) {
230 ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
231 imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
235 // Enter full screen video
237 public void onShowCustomView(View view, CustomViewCallback callback) {
238 if (appBar != null) {
242 // Show the fullScreenVideoFrameLayout.
243 assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null.
244 fullScreenVideoFrameLayout.addView(view);
245 fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
247 // Hide the mainWebView.
248 mainWebView.setVisibility(View.GONE);
250 // Hide the ad if this is the free flavor.
251 BannerAd.hideAd(adView);
253 /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen.
254 * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen.
255 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them.
258 // Set the one flag supported by API >= 14.
259 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
261 // Set the two flags that are supported by API >= 16.
262 if (Build.VERSION.SDK_INT >= 16) {
263 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN);
266 // Set all three flags that are supported by API >= 19.
267 if (Build.VERSION.SDK_INT >= 19) {
268 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
272 // Exit full screen video
273 public void onHideCustomView() {
274 if (appBar != null) {
278 // Show the mainWebView.
279 mainWebView.setVisibility(View.VISIBLE);
281 // Show the ad if this is the free flavor.
282 BannerAd.showAd(adView);
284 // Hide the fullScreenVideoFrameLayout.
285 assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null.
286 fullScreenVideoFrameLayout.removeAllViews();
287 fullScreenVideoFrameLayout.setVisibility(View.GONE);
291 // Allow the downloading of files.
292 mainWebView.setDownloadListener(new DownloadListener() {
293 // Launch the Android download manager when a link leads to a download.
295 public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
296 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
297 DownloadManager.Request requestUri = new DownloadManager.Request(Uri.parse(url));
299 // Add the URL as the description for the download.
300 requestUri.setDescription(url);
302 // Show the download notification after the download is completed.
303 requestUri.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
305 // Initiate the download and display a Snackbar.
306 downloadManager.enqueue(requestUri);
307 Snackbar.make(findViewById(R.id.mainWebView), R.string.download_started, Snackbar.LENGTH_SHORT).show();
311 // Allow pinch to zoom.
312 mainWebView.getSettings().setBuiltInZoomControls(true);
314 // Hide zoom controls.
315 mainWebView.getSettings().setDisplayZoomControls(false);
318 // Initialize the default preference values the first time the program is run.
319 PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
321 // Get the shared preference values.
322 SharedPreferences savedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
324 // Set JavaScript initial status. The default value is false.
325 javaScriptEnabled = savedPreferences.getBoolean("javascript_enabled", false);
326 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
328 // Initialize cookieManager.
329 cookieManager = CookieManager.getInstance();
331 // Set cookies initial status. The default value is false.
332 firstPartyCookiesEnabled = savedPreferences.getBoolean("first_party_cookies_enabled", false);
333 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
335 // Set third-party cookies initial status if API >= 21. The default value is false.
336 if (Build.VERSION.SDK_INT >= 21) {
337 thirdPartyCookiesEnabled = savedPreferences.getBoolean("third_party_cookies_enabled", false);
338 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
341 // Set DOM storage initial status. The default value is false.
342 domStorageEnabled = savedPreferences.getBoolean("dom_storage_enabled", false);
343 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
345 // Set the user agent initial status.
346 String userAgentString = savedPreferences.getString("user_agent", "Default user agent");
347 switch (userAgentString) {
348 case "Default user agent":
352 case "Custom user agent":
353 // Set the custom user agent on mainWebView, The default is "PrivacyBrowser/1.0".
354 mainWebView.getSettings().setUserAgentString(savedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"));
358 // Set the selected user agent on mainWebView. The default is "PrivacyBrowser/1.0".
359 mainWebView.getSettings().setUserAgentString(savedPreferences.getString("user_agent", "PrivacyBrowser/1.0"));
363 // Set the initial string for JavaScript disabled search.
364 if (savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=").equals("Custom URL")) {
365 // Get the custom URL string. The default is "".
366 javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search_custom_url", "");
368 // Use the string from javascript_disabled_search.
369 javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
372 // Set the initial string for JavaScript enabled search.
373 if (savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=").equals("Custom URL")) {
374 // Get the custom URL string. The default is "".
375 javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search_custom_url", "");
377 // Use the string from javascript_enabled_search.
378 javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
382 // Set homepage initial status. The default value is "https://www.duckduckgo.com".
383 homepage = savedPreferences.getString("homepage", "https://www.duckduckgo.com");
385 // Set swipe to refresh initial status. The default is true.
386 swipeToRefreshEnabled = savedPreferences.getBoolean("swipe_to_refresh_enabled", true);
387 swipeToRefresh.setEnabled(swipeToRefreshEnabled);
390 // Get the intent information that started the app.
391 final Intent intent = getIntent();
393 if (intent.getData() != null) {
394 // Get the intent data and convert it to a string.
395 final Uri intentUriData = intent.getData();
396 formattedUrlString = intentUriData.toString();
399 // If formattedUrlString is null assign the homepage to it.
400 if (formattedUrlString == null) {
401 formattedUrlString = homepage;
404 // Load the initial website.
405 mainWebView.loadUrl(formattedUrlString);
407 // Initialize AdView for the free flavor and request an ad. If this is not the free flavor BannerAd.requestAd() does nothing.
408 adView = findViewById(R.id.adView);
409 BannerAd.requestAd(adView);
414 protected void onNewIntent(Intent intent) {
415 // Sets the new intent as the activity intent, so that any future getIntent()s pick up this one instead of creating a new activity.
418 if (intent.getData() != null) {
419 // Get the intent data and convert it to a string.
420 final Uri intentUriData = intent.getData();
421 formattedUrlString = intentUriData.toString();
424 // Close the navigation drawer if it is open.
425 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
426 drawerLayout.closeDrawer(GravityCompat.START);
430 mainWebView.loadUrl(formattedUrlString);
432 // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
433 mainWebView.requestFocus();
437 public boolean onCreateOptionsMenu(Menu menu) {
438 // Inflate the menu; this adds items to the action bar if it is present.
439 getMenuInflater().inflate(R.menu.menu_options, menu);
441 // Set mainMenu so it can be used by onOptionsItemSelected.
444 // Initialize privacyIcon
445 privacyIcon = menu.findItem(R.id.toggleJavaScript);
447 // Get MenuItems for checkable menu items.
448 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
449 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
450 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
452 // Set the initial status of the privacy icon.
455 // Set the initial status of the menu item checkboxes.
456 toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
457 toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
458 toggleDomStorage.setChecked(domStorageEnabled);
464 public boolean onPrepareOptionsMenu(Menu menu) {
465 // Only enable Third-Party Cookies if SDK >= 21 and First-Party Cookies are enabled.
466 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
467 if ((Build.VERSION.SDK_INT >= 21) && firstPartyCookiesEnabled) {
468 toggleThirdPartyCookies.setEnabled(true);
470 toggleThirdPartyCookies.setEnabled(false);
473 // Enable Clear Cookies if there are any.
474 MenuItem clearCookies = menu.findItem(R.id.clearCookies);
475 clearCookies.setEnabled(cookieManager.hasCookies());
477 // Run all the other default commands.
478 super.onPrepareOptionsMenu(menu);
480 // return true displays the menu.
485 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
486 @SuppressLint("SetJavaScriptEnabled")
487 // removeAllCookies is deprecated, but it is required for API < 21.
488 @SuppressWarnings("deprecation")
489 public boolean onOptionsItemSelected(MenuItem menuItem) {
490 int menuItemId = menuItem.getItemId();
492 // Set the commands that relate to the menu entries.
493 switch (menuItemId) {
494 case R.id.toggleJavaScript:
495 // Switch the status of javaScriptEnabled.
496 javaScriptEnabled = !javaScriptEnabled;
498 // Apply the new JavaScript status.
499 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
501 // Update the privacy icon.
504 // Display a Snackbar.
505 if (javaScriptEnabled) {
506 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
508 if (domStorageEnabled || firstPartyCookiesEnabled) {
509 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
511 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
515 // Reload the WebView.
516 mainWebView.reload();
519 case R.id.toggleFirstPartyCookies:
520 // Switch the status of firstPartyCookiesEnabled.
521 firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
523 // Update the menu checkbox.
524 menuItem.setChecked(firstPartyCookiesEnabled);
526 // Apply the new cookie status.
527 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
529 // Update the privacy icon.
532 // Reload the WebView.
533 mainWebView.reload();
536 case R.id.toggleThirdPartyCookies:
537 if (Build.VERSION.SDK_INT >= 21) {
538 // Switch the status of thirdPartyCookiesEnabled.
539 thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
541 // Update the menu checkbox.
542 menuItem.setChecked(thirdPartyCookiesEnabled);
544 // Apply the new cookie status.
545 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
547 // Reload the WebView.
548 mainWebView.reload();
549 } // Else do nothing because SDK < 21.
552 case R.id.toggleDomStorage:
553 // Switch the status of domStorageEnabled.
554 domStorageEnabled = !domStorageEnabled;
556 // Update the menu checkbox.
557 menuItem.setChecked(domStorageEnabled);
559 // Apply the new DOM Storage status.
560 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
562 // Update the privacy icon.
565 // Reload the WebView.
566 mainWebView.reload();
569 case R.id.clearCookies:
570 if (Build.VERSION.SDK_INT < 21) {
571 cookieManager.removeAllCookie();
573 cookieManager.removeAllCookies(null);
575 Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
578 case R.id.clearDomStorage:
579 WebStorage webStorage = WebStorage.getInstance();
580 webStorage.deleteAllData();
581 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
585 Intent shareIntent = new Intent();
586 shareIntent.setAction(Intent.ACTION_SEND);
587 shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
588 shareIntent.setType("text/plain");
589 startActivity(Intent.createChooser(shareIntent, "Share URL"));
592 case R.id.addToHomescreen:
593 // Show the CreateHomeScreenShortcut AlertDialog and name this instance createShortcut.
594 AppCompatDialogFragment shortcutDialog = new CreateHomeScreenShortcut();
595 shortcutDialog.show(getSupportFragmentManager(), "createShortcut");
597 //Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below.
601 mainWebView.reload();
605 // Don't consume the event.
606 return super.onOptionsItemSelected(menuItem);
611 // removeAllCookies is deprecated, but it is required for API < 21.
612 @SuppressWarnings("deprecation")
613 public boolean onNavigationItemSelected(MenuItem menuItem) {
614 int menuItemId = menuItem.getItemId();
616 switch (menuItemId) {
618 mainWebView.loadUrl(homepage);
622 if (mainWebView.canGoBack()) {
623 mainWebView.goBack();
628 if (mainWebView.canGoForward()) {
629 mainWebView.goForward();
634 // Launch the system Download Manager.
635 Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
637 // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
638 downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
640 startActivity(downloadManagerIntent);
644 // Launch SettingsActivity.
645 Intent settingsIntent = new Intent(this, SettingsActivity.class);
646 startActivity(settingsIntent);
650 // Launch AboutActivity.
651 Intent aboutIntent = new Intent(this, AboutActivity.class);
652 startActivity(aboutIntent);
655 case R.id.clearAndExit:
656 // Clear DOM storage.
657 WebStorage domStorage = WebStorage.getInstance();
658 domStorage.deleteAllData();
660 // Clear cookies. The commands changed slightly in API 21.
661 if (Build.VERSION.SDK_INT >= 21) {
662 cookieManager.removeAllCookies(null);
664 cookieManager.removeAllCookie();
667 // Clear cache. The argument of "true" includes disk files.
668 mainWebView.clearCache(true);
670 // Clear the back/forward history.
671 mainWebView.clearHistory();
673 // Destroy the internal state of the webview.
674 mainWebView.destroy();
676 // Close Privacy Browser. finishAndRemoveTask also removes Privacy Browser from the recent app list.
677 if (Build.VERSION.SDK_INT >= 21) {
678 finishAndRemoveTask();
688 // Close the navigation drawer.
689 drawerLayout.closeDrawer(GravityCompat.START);
694 public void onPostCreate(Bundle savedInstanceState) {
695 super.onPostCreate(savedInstanceState);
697 // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
698 drawerToggle.syncState();
702 public void onConfigurationChanged(Configuration newConfig) {
703 super.onConfigurationChanged(newConfig);
705 // Reload the ad if this is the free flavor.
706 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
708 // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate().
709 adView = findViewById(R.id.adView);
713 public void onCreateHomeScreenShortcutCancel(DialogFragment dialog) {
714 // Do nothing because the user selected "Cancel".
718 public void onCreateHomeScreenShortcutCreate(DialogFragment dialog) {
719 // Get shortcutNameEditText from the alert dialog.
720 EditText shortcutNameEditText = (EditText) dialog.getDialog().findViewById(R.id.shortcutNameEditText);
722 // Create the bookmark shortcut based on formattedUrlString.
723 Intent bookmarkShortcut = new Intent();
724 bookmarkShortcut.setAction(Intent.ACTION_VIEW);
725 bookmarkShortcut.setData(Uri.parse(formattedUrlString));
727 // Place the bookmark shortcut on the home screen.
728 Intent placeBookmarkShortcut = new Intent();
729 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
730 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
731 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
732 placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
733 sendBroadcast(placeBookmarkShortcut);
736 // Override onBackPressed to handle the navigation drawer and mainWebView.
738 public void onBackPressed() {
739 final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
741 // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text.
742 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
743 drawerLayout.closeDrawer(GravityCompat.START);
745 // Load the previous URL if available.
746 assert mainWebView != null; //This assert removes the incorrect warning on the following line that mainWebView might be null.
747 if (mainWebView.canGoBack()) {
748 mainWebView.goBack();
750 // Pass onBackPressed to the system.
751 super.onBackPressed();
757 public void onPause() {
758 // We need to pause the adView or it will continue to consume resources in the background on the free flavor.
759 BannerAd.pauseAd(adView);
765 public void onResume() {
768 // We need to resume the adView for the free flavor.
769 BannerAd.resumeAd(adView);
772 private void loadUrlFromTextBox() throws UnsupportedEncodingException {
773 // Get the text from urlTextBox and convert it to a string.
774 String unformattedUrlString = urlTextBox.getText().toString();
775 URL unformattedUrl = null;
776 Uri.Builder formattedUri = new Uri.Builder();
778 // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
779 if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
780 // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
781 if (!unformattedUrlString.startsWith("http")) {
782 unformattedUrlString = "http://" + unformattedUrlString;
785 // 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.
787 unformattedUrl = new URL(unformattedUrlString);
788 } catch (MalformedURLException e) {
792 // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
793 final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
794 final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
795 final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
796 final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
797 final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
799 formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
800 formattedUrlString = formattedUri.build().toString();
802 // Sanitize the search input and convert it to a DuckDuckGo search.
803 final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
805 // Use the correct search URL based on javaScriptEnabled.
806 if (javaScriptEnabled) {
807 formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
808 } else { // JavaScript is disabled.
809 formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
813 mainWebView.loadUrl(formattedUrlString);
815 // Hides the keyboard so we can see the webpage.
816 InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
817 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
820 private void updatePrivacyIcon() {
821 if (javaScriptEnabled) {
822 privacyIcon.setIcon(R.drawable.javascript_enabled);
824 if (domStorageEnabled || firstPartyCookiesEnabled) {
825 privacyIcon.setIcon(R.drawable.warning);
827 privacyIcon.setIcon(R.drawable.privacy_mode);