X-Git-Url: https://gitweb.stoutner.com/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2FMainWebViewActivity.java;h=779d2d69b91a0e1c6d299c4dab2315439a063a75;hb=eb1e349d876e09e2b82e4eb9d6dc199147e1cde5;hp=87f30afe125afe43b6fc8e7f818223050fd730c6;hpb=e8bcccda781e0aa65ee4cc11428f3e99dc400015;p=PrivacyBrowserAndroid.git diff --git a/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java b/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java index 87f30afe..779d2d69 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java +++ b/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java @@ -20,7 +20,6 @@ package com.stoutner.privacybrowser; import android.annotation.SuppressLint; -import android.app.Activity; import android.app.DialogFragment; import android.app.DownloadManager; import android.content.Context; @@ -31,10 +30,14 @@ import android.graphics.Bitmap; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.net.Uri; +import android.net.http.SslCertificate; import android.net.http.SslError; import android.os.Build; import android.os.Bundle; import android.preference.PreferenceManager; +import android.print.PrintDocumentAdapter; +import android.print.PrintManager; +import android.support.annotation.NonNull; import android.support.design.widget.NavigationView; import android.support.design.widget.Snackbar; import android.support.v4.app.ActivityCompat; @@ -45,8 +48,12 @@ import android.support.v4.widget.SwipeRefreshLayout; import android.support.v7.app.ActionBar; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; +import android.support.v7.app.AppCompatDialogFragment; import android.support.v7.widget.Toolbar; +import android.text.Editable; +import android.text.TextWatcher; import android.util.Patterns; +import android.view.ContextMenu; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; @@ -55,6 +62,7 @@ import android.view.inputmethod.InputMethodManager; import android.webkit.CookieManager; import android.webkit.DownloadListener; import android.webkit.SslErrorHandler; +import android.webkit.WebBackForwardList; import android.webkit.WebChromeClient; import android.webkit.WebStorage; import android.webkit.WebView; @@ -63,7 +71,10 @@ import android.webkit.WebViewDatabase; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.ImageView; +import android.widget.LinearLayout; import android.widget.ProgressBar; +import android.widget.RelativeLayout; +import android.widget.TextView; import java.io.UnsupportedEncodingException; import java.net.MalformedURLException; @@ -74,74 +85,66 @@ import java.util.Map; // We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21. public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener, - SslCertificateError.SslCertificateErrorListener, DownloadFile.DownloadFileListener { - // `privacyBrowserContext` is public static so it can be accessed from `SettingsFragment`. - // It is also used in `onCreate()` and `onConfigurationChanged()`. - public static Context privacyBrowserContext; + SslCertificateError.SslCertificateErrorListener, DownloadFile.DownloadFileListener, DownloadImage.DownloadImageListener, UrlHistory.UrlHistoryListener { // `appBar` is public static so it can be accessed from `OrbotProxyHelper`. - // It is also used in `onCreate()`. + // It is also used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`. public static ActionBar appBar; // `favoriteIcon` is public static so it can be accessed from `CreateHomeScreenShortcut`, `BookmarksActivity`, `CreateBookmark`, `CreateBookmarkFolder`, and `EditBookmark`. // It is also used in `onCreate()` and `onCreateHomeScreenShortcutCreate()`. public static Bitmap favoriteIcon; - // `privacyBrowserActivity` is public static so it can be accessed from `SettingsFragment`. - // It is also used in `onCreate()`, `onCreateOptionsMenu()`, and `onOptionsItemSelected()`, - public static Activity privacyBrowserActivity; - - // `mainWebView` is public static so it can be accessed from `SettingsFragment`. - // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, and `loadUrlFromTextBox()`. - public static WebView mainWebView; - // `formattedUrlString` is public static so it can be accessed from `BookmarksActivity`. // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onCreateHomeScreenShortcutCreate()`, and `loadUrlFromTextBox()`. public static String formattedUrlString; - // `mainMenu` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreateOptionsMenu()` and `onOptionsItemSelected()`. - public static Menu mainMenu; + // `sslCertificate` is public static so it can be accessed from `ViewSslCertificate`. It is also used in `onCreate()`. + public static SslCertificate sslCertificate; - // `cookieManager` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`. - public static CookieManager cookieManager; - // `javaScriptEnabled` is public static so it can be accessed from `SettingsFragment`. - // It is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`. - public static boolean javaScriptEnabled; + // 'mainWebView' is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, `onCreateContextMenu()`, `findPreviousOnPage()`, `findNextOnPage()`, `closeFindOnPage()`, and `loadUrlFromTextBox()`. + private WebView mainWebView; - // `firstPartyCookiesEnabled` is public static so it can be accessed from `SettingsFragment`. - // It is also used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, and `onOptionsItemSelected()`. - public static boolean firstPartyCookiesEnabled; + // `swipeRefreshLayout` is used in `onCreate()`, `onPrepareOptionsMenu`, and `onRestart()`. + private SwipeRefreshLayout swipeRefreshLayout; - // `thirdPartyCookiesEnables` is public static so it can be accessed from `SettingsFragment`. - // It is also used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, and `onOptionsItemSelected()`. - public static boolean thirdPartyCookiesEnabled; + // `cookieManager` is used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`, and `onRestart()`. + private CookieManager cookieManager; - // `domStorageEnabled` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()`, `onCreateOptionsMenu()`, and `onOptionsItemSelected()`. - public static boolean domStorageEnabled; + // `customHeader` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateContextMenu()`, and `loadUrlFromTextBox()`. + private final Map customHeaders = new HashMap<>(); - // `saveFormDataEnabled` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()`, `onCreateOptionsMenu()`, and `onOptionsItemSelected()`. - public static boolean saveFormDataEnabled; + // `javaScriptEnabled` is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `applySettings()`. + // It is `Boolean` instead of `boolean` because `applySettings()` needs to know if it is `null`. + private Boolean javaScriptEnabled; - // `javaScriptDisabledSearchURL` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()` and `loadURLFromTextBox()`. - public static String javaScriptDisabledSearchURL; + // `firstPartyCookiesEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`. + private boolean firstPartyCookiesEnabled; - // `javaScriptEnabledSearchURL` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()` and `loadURLFromTextBox()`. - public static String javaScriptEnabledSearchURL; + // `thirdPartyCookiesEnabled` used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`. + private boolean thirdPartyCookiesEnabled; - // `homepage` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()` and `onOptionsItemSelected()`. - public static String homepage; + // `domStorageEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`. + private boolean domStorageEnabled; - // `swipeToRefresh` is public static so it can be accessed from SettingsFragment. It is also used in onCreate(). - public static SwipeRefreshLayout swipeToRefresh; + // `saveFormDataEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`. + private boolean saveFormDataEnabled; - // `swipeToRefreshEnabled` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()`. - public static boolean swipeToRefreshEnabled; + // `swipeToRefreshEnabled` is used in `onPrepareOptionsMenu()` and `applySettings()`. + private boolean swipeToRefreshEnabled; - // `customHeader` is public static so it can be accessed from `BookmarksActivity`. It is also used in `onCreate()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`. - public static Map customHeaders = new HashMap(); + // 'homepage' is used in `onCreate()`, `onNavigationItemSelected()`, and `applySettings()`. + private String homepage; + // `javaScriptDisabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`. + private String javaScriptDisabledSearchURL; + // `javaScriptEnabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`. + private String javaScriptEnabledSearchURL; + + // `mainMenu` is used in `onCreateOptionsMenu()` and `updatePrivacyIcons()`. + private Menu mainMenu; // `drawerToggle` is used in `onCreate()`, `onPostCreate()`, `onConfigurationChanged()`, `onNewIntent()`, and `onNavigationItemSelected()`. private ActionBarDrawerToggle drawerToggle; @@ -158,8 +161,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // `sslErrorHandler` is used in `onCreate()`, `onSslErrorCancel()`, and `onSslErrorProceed`. private SslErrorHandler sslErrorHandler; - // `sharedPreferences` is used in `onCreate()` and `onCreateOptionsMenu()`. - SharedPreferences sharedPreferences; + // `findOnPageEditText` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`. + private EditText findOnPageEditText; + + // `inputMethodManager` is used in `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `closeFindOnPage()`. + private InputMethodManager inputMethodManager; @Override // 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. @@ -168,11 +174,8 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation super.onCreate(savedInstanceState); setContentView(R.layout.main_coordinatorlayout); - // We need a handle for the activity, which is accessed from `SettingsFragment` and fed into `updatePrivacyIcons()`. - privacyBrowserActivity = this; - - // Get a handle for the application context. - privacyBrowserContext = getApplicationContext(); + // Get a handle for `inputMethodManager`. + inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21. Toolbar supportAppBar = (Toolbar) findViewById(R.id.appBar); @@ -182,15 +185,16 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // This is needed to get rid of the Android Studio warning that appBar might be null. assert appBar != null; - // Add the custom url_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar. - appBar.setCustomView(R.layout.url_bar); + // Add the custom url_app_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar. + appBar.setCustomView(R.layout.url_app_bar); appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM); // Set the "go" button on the keyboard to load the URL in urlTextBox. urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox); urlTextBox.setOnKeyListener(new View.OnKeyListener() { + @Override public boolean onKey(View v, int keyCode, KeyEvent event) { - // If the event is a key-down event on the "enter" button, load the URL. + // If the event is a key-down event on the `enter` button, load the URL. if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { // Load the URL into the mainWebView and consume the event. try { @@ -207,36 +211,125 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } }); + // Get handles for `fullScreenVideoFrameLayout`, `mainWebView`, and `find_on_page_edittext`. final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout); + mainWebView = (WebView) findViewById(R.id.mainWebView); + findOnPageEditText = (EditText) findViewById(R.id.find_on_page_edittext); + + // Update `findOnPageCountTextView`. + mainWebView.setFindListener(new WebView.FindListener() { + // Get a handle for `findOnPageCountTextView`. + TextView findOnPageCountTextView = (TextView) findViewById(R.id.find_on_page_count_textview); + + @Override + public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, boolean isDoneCounting) { + if ((isDoneCounting) && (numberOfMatches == 0)) { // There are no matches. + // Set `findOnPageCountTextView` to `0/0`. + findOnPageCountTextView.setText(R.string.zero_of_zero); + } else if (isDoneCounting) { // There are matches. + // `activeMatchOrdinal` is zero-based. + int activeMatch = activeMatchOrdinal + 1; + + // Set `findOnPageCountTextView`. + findOnPageCountTextView.setText(activeMatch + "/" + numberOfMatches); + } + } + }); + + // Search for the string on the page whenever a character changes in the `findOnPageEditText`. + findOnPageEditText.addTextChangedListener(new TextWatcher() { + @Override + public void beforeTextChanged(CharSequence s, int start, int count, int after) { + // Do nothing. + } + + @Override + public void onTextChanged(CharSequence s, int start, int before, int count) { + // Do nothing. + } + + @Override + public void afterTextChanged(Editable s) { + // Search for the text in `mainWebView`. + mainWebView.findAllAsync(findOnPageEditText.getText().toString()); + } + }); + + // Set the `check mark` button for the `findOnPageEditText` keyboard to close the soft keyboard. + findOnPageEditText.setOnKeyListener(new View.OnKeyListener() { + @Override + public boolean onKey(View v, int keyCode, KeyEvent event) { + if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { // The `enter` key was pressed. + // Hide the soft keyboard. `0` indicates no additional flags. + inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0); + + // Consume the event. + return true; + } else { // A different key was pressed. + // Do not consume the event. + return false; + } + } + }); // Implement swipe to refresh - swipeToRefresh = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout); - assert swipeToRefresh != null; //This assert removes the incorrect warning on the following line that swipeToRefresh might be null. - swipeToRefresh.setColorSchemeResources(R.color.blue_700); - swipeToRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { + swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout); + swipeRefreshLayout.setColorSchemeResources(R.color.blue_700); + swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { @Override public void onRefresh() { mainWebView.reload(); } }); - mainWebView = (WebView) findViewById(R.id.mainWebView); - // Create the navigation drawer. drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout); - // The DrawerTitle identifies the drawer in accessibility mode. + // `DrawerTitle` identifies the drawer in accessibility mode. drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer)); // Listen for touches on the navigation menu. final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView); - assert navigationView != null; // This assert removes the incorrect warning on the following line that navigationView might be null. navigationView.setNavigationItemSelectedListener(this); + // 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. + final Menu navigationMenu = navigationView.getMenu(); + final MenuItem navigationBackMenuItem = navigationMenu.getItem(1); + final MenuItem navigationForwardMenuItem = navigationMenu.getItem(2); + final MenuItem navigationHistoryMenuItem = navigationMenu.getItem(3); + + // The `DrawerListener` allows us to update the Navigation Menu. + drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() { + @Override + public void onDrawerSlide(View drawerView, float slideOffset) { + } + + @Override + public void onDrawerOpened(View drawerView) { + } + + @Override + public void onDrawerClosed(View drawerView) { + } + + @Override + public void onDrawerStateChanged(int newState) { + // Update the `Back`, `Forward`, and `History` menu items every time the drawer opens. + navigationBackMenuItem.setEnabled(mainWebView.canGoBack()); + navigationForwardMenuItem.setEnabled(mainWebView.canGoForward()); + navigationHistoryMenuItem.setEnabled((mainWebView.canGoBack() || mainWebView.canGoForward())); + + // Hide the keyboard so we can see the navigation menu. `0` indicates no additional flags. + inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0); + } + }); + // drawerToggle creates the hamburger icon at the start of the AppBar. drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation); mainWebView.setWebViewClient(new WebViewClient() { - // shouldOverrideUrlLoading makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps. + // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps. + // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24. + @SuppressWarnings("deprecation") @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { // Use an external email program if the link begins with "mailto:". @@ -262,6 +355,10 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Update the URL in urlTextBox when the page starts to load. @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { + // 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. + formattedUrlString = url; + + // Display the loading URL is the URL text box. urlTextBox.setText(url); } @@ -274,6 +371,9 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation if (!urlTextBox.hasFocus()) { urlTextBox.setText(formattedUrlString); } + + // Store the SSL certificate so it can be accessed from `ViewSslCertificate`. + sslCertificate = mainWebView.getCertificate(); } // Handle SSL Certificate errors. @@ -283,8 +383,8 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation sslErrorHandler = handler; // Display the SSL error `AlertDialog`. - DialogFragment sslCertificateErrorDialogFragment = SslCertificateError.displayDialog(error); - sslCertificateErrorDialogFragment.show(getFragmentManager(), getResources().getString(R.string.ssl_certificate_error)); + AppCompatDialogFragment sslCertificateErrorDialogFragment = SslCertificateError.displayDialog(error); + sslCertificateErrorDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.ssl_certificate_error)); } }); @@ -299,8 +399,8 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } else { progressBar.setVisibility(View.GONE); - //Stop the SwipeToRefresh indicator if it is running - swipeToRefresh.setRefreshing(false); + //Stop the `SwipeToRefresh` indicator if it is running + swipeRefreshLayout.setRefreshing(false); } } @@ -321,7 +421,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation appBar.hide(); // Show the fullScreenVideoFrameLayout. - assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null. fullScreenVideoFrameLayout.addView(view); fullScreenVideoFrameLayout.setVisibility(View.VISIBLE); @@ -349,19 +448,21 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation BannerAd.showAd(adView); // Hide the fullScreenVideoFrameLayout. - assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null. fullScreenVideoFrameLayout.removeAllViews(); fullScreenVideoFrameLayout.setVisibility(View.GONE); } }); + // Register `mainWebView` for a context menu. This is used to see link targets and download images. + registerForContextMenu(mainWebView); + // Allow the downloading of files. mainWebView.setDownloadListener(new DownloadListener() { @Override public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) { // Show the `DownloadFile` `AlertDialog` and name this instance `@string/download`. - DialogFragment downloadFileDialogFragment = DownloadFile.fromUrl(url, contentDisposition, contentLength); - downloadFileDialogFragment.show(getFragmentManager(), getResources().getString(R.string.download)); + AppCompatDialogFragment downloadFileDialogFragment = DownloadFile.fromUrl(url, contentDisposition, contentLength); + downloadFileDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download)); } }); @@ -371,99 +472,17 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Hide zoom controls. mainWebView.getSettings().setDisplayZoomControls(false); - - // Initialize the default preference values the first time the program is run. - PreferenceManager.setDefaultValues(this, R.xml.preferences, false); - - // Get the shared preference values. - sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); - - // Set JavaScript initial status. The default value is false. - javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false); - mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled); - // Initialize cookieManager. cookieManager = CookieManager.getInstance(); - // Set cookies initial status. The default value is false. - firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false); - cookieManager.setAcceptCookie(firstPartyCookiesEnabled); - - // Set third-party cookies initial status if API >= 21. The default value is false. - if (Build.VERSION.SDK_INT >= 21) { - thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false); - cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled); - } - - // Set DOM storage initial status. The default value is false. - domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false); - mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled); - - // Set the saved form data initial status. The default is false. - saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false); - mainWebView.getSettings().setSaveFormData(saveFormDataEnabled); - - // Set the user agent initial status. - String userAgentString = sharedPreferences.getString("user_agent", "Default user agent"); - switch (userAgentString) { - case "Default user agent": - // Do nothing. - break; - - case "Custom user agent": - // Set the custom user agent on mainWebView, The default is "PrivacyBrowser/1.0". - mainWebView.getSettings().setUserAgentString(sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0")); - break; - - default: - // Set the selected user agent on mainWebView. The default is "PrivacyBrowser/1.0". - mainWebView.getSettings().setUserAgentString(sharedPreferences.getString("user_agent", "PrivacyBrowser/1.0")); - break; - } - - // Set the initial string for JavaScript disabled search. - if (sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=").equals("Custom URL")) { - // Get the custom URL string. The default is "". - javaScriptDisabledSearchURL = sharedPreferences.getString("javascript_disabled_search_custom_url", ""); - } else { - // Use the string from javascript_disabled_search. - javaScriptDisabledSearchURL = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q="); - } - - // Set the initial string for JavaScript enabled search. - if (sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=").equals("Custom URL")) { - // Get the custom URL string. The default is "". - javaScriptEnabledSearchURL = sharedPreferences.getString("javascript_enabled_search_custom_url", ""); - } else { - // Use the string from javascript_enabled_search. - javaScriptEnabledSearchURL = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q="); - } - - - // Set the homepage initial status. The default value is `https://www.duckduckgo.com`. - homepage = sharedPreferences.getString("homepage", "https://www.duckduckgo.com"); - - // Set the font size initial status. the default value is `100`. - String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100"); - mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString)); - - // Set the swipe to refresh initial status. The default is `true`. - swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", true); - swipeToRefresh.setEnabled(swipeToRefreshEnabled); - - // 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). customHeaders.put("X-Requested-With", ""); - // Set Do Not Track. The default is true. - if (sharedPreferences.getBoolean("do_not_track", true)) { - customHeaders.put("DNT", "1"); - } + // Initialize the default preference values the first time the program is run. + PreferenceManager.setDefaultValues(this, R.xml.preferences, false); - // Set Orbot proxy status. The default is `false`. - if (sharedPreferences.getBoolean("proxy_through_orbot", false)) { - OrbotProxyHelper.setProxy(privacyBrowserContext, privacyBrowserActivity, "localhost", "8118"); - } + // Apply the settings from the shared preferences. + applySettings(); // Get the intent information that started the app. final Intent intent = getIntent(); @@ -485,7 +504,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // If the favorite icon is null, load the default. if (favoriteIcon == null) { // We have to use `ContextCompat` until API >= 21. - Drawable favoriteIconDrawable = ContextCompat.getDrawable(privacyBrowserContext, R.drawable.world); + Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world); BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable; favoriteIcon = favoriteIconBitmapDrawable.getBitmap(); } @@ -524,11 +543,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.webview_options_menu, menu); - // Set mainMenu so it can be used by onOptionsItemSelected. + // Set mainMenu so it can be used by `onOptionsItemSelected()` and `updatePrivacyIcons`. mainMenu = menu; - // Set the initial status of the privacy icon. - updatePrivacyIcons(privacyBrowserActivity); + // Set the initial status of the privacy icons. `false` does not call `invalidateOptionsMenu` as the last step. + updatePrivacyIcons(false); // Get handles for the menu items. MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies); @@ -536,11 +555,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage); MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData); - // Set the initial status of the menu item checkboxes. - toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled); - toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled); - toggleDomStorage.setChecked(domStorageEnabled); - toggleSaveFormData.setChecked(saveFormDataEnabled); + // Only display third-Party Cookies if SDK >= 21 + toggleThirdPartyCookies.setVisible(Build.VERSION.SDK_INT >= 21); + + // Get the shared preference values. `this` references the current context. + SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); // Set the status of the additional app bar icons. The default is `false`. if (sharedPreferences.getBoolean("display_additional_app_bar_icons", false)) { @@ -558,27 +577,37 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation @Override public boolean onPrepareOptionsMenu(Menu menu) { - // Only enable Third-Party Cookies if SDK >= 21 and First-Party Cookies are enabled. + // Get handles for the menu items. + MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies); MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies); - if ((Build.VERSION.SDK_INT >= 21) && firstPartyCookiesEnabled) { - toggleThirdPartyCookies.setEnabled(true); - } else { - toggleThirdPartyCookies.setEnabled(false); - } + MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage); + MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData); + MenuItem clearCookies = menu.findItem(R.id.clearCookies); + MenuItem clearFormData = menu.findItem(R.id.clearFormData); + MenuItem refreshMenuItem = menu.findItem(R.id.refresh); + + // Set the status of the menu item checkboxes. + toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled); + toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled); + toggleDomStorage.setChecked(domStorageEnabled); + toggleSaveFormData.setChecked(saveFormDataEnabled); + + // Enable third-party cookies if first-party cookies are enabled. + toggleThirdPartyCookies.setEnabled(firstPartyCookiesEnabled); // Enable DOM Storage if JavaScript is enabled. - MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage); toggleDomStorage.setEnabled(javaScriptEnabled); // Enable Clear Cookies if there are any. - MenuItem clearCookies = menu.findItem(R.id.clearCookies); clearCookies.setEnabled(cookieManager.hasCookies()); // Enable Clear Form Data is there is any. - MenuItem clearFormData = menu.findItem(R.id.clearFormData); WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this); clearFormData.setEnabled(mainWebViewDatabase.hasFormData()); + // Only show `Refresh` if `swipeToRefresh` is disabled. + refreshMenuItem.setVisible(!swipeToRefreshEnabled); + // Initialize font size variables. int fontSize = mainWebView.getSettings().getTextZoom(); String fontSizeTitle; @@ -632,10 +661,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation fontSizeMenuItem.setTitle(fontSizeTitle); selectedFontSizeMenuItem.setChecked(true); - // Only show `Refresh` if `swipeToRefresh` is disabled. - MenuItem refreshMenuItem = menu.findItem(R.id.refresh); - refreshMenuItem.setVisible(!swipeToRefreshEnabled); - // Run all the other default commands. super.onPrepareOptionsMenu(menu); @@ -660,18 +685,16 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Apply the new JavaScript status. mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled); - // Update the privacy icon. - updatePrivacyIcons(privacyBrowserActivity); + // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step. + updatePrivacyIcons(true); // Display a `Snackbar`. - if (javaScriptEnabled) { + if (javaScriptEnabled) { // JavaScrip is enabled. Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show(); - } else { - if (firstPartyCookiesEnabled) { - Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show(); - } else { - Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show(); - } + } else if (firstPartyCookiesEnabled) { // JavaScript is disabled, but first-party cookies are enabled. + Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show(); + } else { // Privacy mode. + Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show(); } // Reload the WebView. @@ -688,18 +711,16 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Apply the new cookie status. cookieManager.setAcceptCookie(firstPartyCookiesEnabled); - // Update the privacy icon. - updatePrivacyIcons(privacyBrowserActivity); + // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step. + updatePrivacyIcons(true); // Display a `Snackbar`. - if (firstPartyCookiesEnabled) { + if (firstPartyCookiesEnabled) { // First-party cookies are enabled. Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_enabled, Snackbar.LENGTH_SHORT).show(); - } else { - if (javaScriptEnabled) { - Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_disabled, Snackbar.LENGTH_SHORT).show(); - } else { - Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show(); - } + } else if (javaScriptEnabled){ // JavaScript is still enabled. + Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_disabled, Snackbar.LENGTH_SHORT).show(); + } else { // Privacy mode. + Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show(); } // Reload the WebView. @@ -739,6 +760,9 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Apply the new DOM Storage status. mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled); + // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step. + updatePrivacyIcons(true); + // Display a `Snackbar`. if (domStorageEnabled) { Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_enabled, Snackbar.LENGTH_SHORT).show(); @@ -767,6 +791,9 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_disabled, Snackbar.LENGTH_SHORT).show(); } + // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step. + updatePrivacyIcons(true); + // Reload the WebView. mainWebView.reload(); return true; @@ -820,6 +847,31 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation mainWebView.getSettings().setTextZoom(200); return true; + case R.id.find_on_page: + // Hide the URL app bar. + Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar); + appBarToolbar.setVisibility(View.GONE); + + // Show the Find on Page `RelativeLayout`. + LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout); + findOnPageLinearLayout.setVisibility(View.VISIBLE); + + // Display the keyboard. We have to wait 200 ms before running the command to work around a bug in Android. + // http://stackoverflow.com/questions/5520085/android-show-softkeyboard-with-showsoftinput-is-not-working + findOnPageEditText.postDelayed(new Runnable() + { + @Override + public void run() + { + // Set the focus on `findOnPageEditText`. + findOnPageEditText.requestFocus(); + + // Display the keyboard. + inputMethodManager.showSoftInput(findOnPageEditText, 0); + } + }, 200); + return true; + case R.id.share: Intent shareIntent = new Intent(); shareIntent.setAction(Intent.ACTION_SEND); @@ -829,13 +881,24 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation return true; case R.id.addToHomescreen: - // Show the `CreateHomeScreenShortcut` `AlertDialog` and name this instance `@string/create_shortcut`. - DialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut(); - createHomeScreenShortcutDialogFragment.show(getFragmentManager(), getResources().getString(R.string.create_shortcut)); + // Show the `CreateHomeScreenShortcut` `AlertDialog` and name this instance `R.string.create_shortcut`. + AppCompatDialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut(); + createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.create_shortcut)); //Everything else will be handled by `CreateHomeScreenShortcut` and the associated listener below. return true; + case R.id.print: + // Get a `PrintManager` instance. + PrintManager printManager = (PrintManager) getSystemService(Context.PRINT_SERVICE); + + // Convert `mainWebView` to `printDocumentAdapter`. + PrintDocumentAdapter printDocumentAdapter = mainWebView.createPrintDocumentAdapter(); + + // Print the document. The print attributes are `null`. + printManager.print(getResources().getString(R.string.privacy_browser_web_page), printDocumentAdapter, null); + return true; + case R.id.refresh: mainWebView.reload(); return true; @@ -846,10 +909,10 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } } - @Override // removeAllCookies is deprecated, but it is required for API < 21. @SuppressWarnings("deprecation") - public boolean onNavigationItemSelected(MenuItem menuItem) { + @Override + public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) { int menuItemId = menuItem.getItemId(); switch (menuItemId) { @@ -869,6 +932,15 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } break; + case R.id.history: + // Gte the `WebBackForwardList`. + WebBackForwardList webBackForwardList = mainWebView.copyBackForwardList(); + + // Show the `UrlHistory` `AlertDialog` and name this instance `R.string.history`. `this` is the `Context`. + AppCompatDialogFragment urlHistoryDialogFragment = UrlHistory.loadBackForwardList(this, webBackForwardList); + urlHistoryDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.history)); + break; + case R.id.bookmarks: // Launch BookmarksActivity. Intent bookmarksIntent = new Intent(this, BookmarksActivity.class); @@ -926,7 +998,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation mainWebView.clearHistory(); // Clear any SSL certificate preferences. - MainWebViewActivity.mainWebView.clearSslPreferences(); + mainWebView.clearSslPreferences(); // Clear `formattedUrlString`. formattedUrlString = null; @@ -934,15 +1006,22 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Clear `customHeaders`. customHeaders.clear(); - // Destroy the internal state of the webview. + // Detach all views from `mainWebViewRelativeLayout`. + RelativeLayout mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.mainWebViewRelativeLayout); + mainWebViewRelativeLayout.removeAllViews(); + + // Destroy the internal state of `mainWebView`. mainWebView.destroy(); - // Close Privacy Browser. finishAndRemoveTask also removes Privacy Browser from the recent app list. + // Close Privacy Browser. `finishAndRemoveTask` also removes Privacy Browser from the recent app list. if (Build.VERSION.SDK_INT >= 21) { finishAndRemoveTask(); } else { finish(); } + + // Remove the terminated program from RAM. The status code is `0`. + System.exit(0); break; default: @@ -967,17 +1046,145 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation super.onConfigurationChanged(newConfig); // Reload the ad if this is the free flavor. - BannerAd.reloadAfterRotate(adView, privacyBrowserContext, getString(R.string.ad_id)); + BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id)); // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate(). adView = findViewById(R.id.adView); // `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 - invalidateOptionsMenu(); + // ActivityCompat.invalidateOptionsMenu(this); + } + + @Override + public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) { + // Store the `HitTestResult`. + final WebView.HitTestResult hitTestResult = mainWebView.getHitTestResult(); + + // Create strings. + final String imageUrl; + final String linkUrl; + + switch (hitTestResult.getType()) { + // `SRC_ANCHOR_TYPE` is a link. + case WebView.HitTestResult.SRC_ANCHOR_TYPE: + // Get the target URL. + linkUrl = hitTestResult.getExtra(); + + // Set the target URL as the title of the `ContextMenu`. + menu.setHeaderTitle(linkUrl); + + // Add a `Load URL` button. + menu.add(R.string.load_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() { + @Override + public boolean onMenuItemClick(MenuItem item) { + mainWebView.loadUrl(linkUrl, customHeaders); + return false; + } + }); + + // Add a `Cancel` button, which by default closes the `ContextMenu`. + menu.add(R.string.cancel); + break; + + case WebView.HitTestResult.EMAIL_TYPE: + // Get the target URL. + linkUrl = hitTestResult.getExtra(); + + // Set the target URL as the title of the `ContextMenu`. + menu.setHeaderTitle(linkUrl); + + // Add a `Write Email` button. + menu.add(R.string.write_email).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() { + @Override + public boolean onMenuItemClick(MenuItem item) { + // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched. + Intent emailIntent = new Intent(Intent.ACTION_SENDTO); + + // Parse the url and set it as the data for the `Intent`. + emailIntent.setData(Uri.parse("mailto:" + linkUrl)); + + // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser. + emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + + // Make it so. + startActivity(emailIntent); + return false; + } + }); + + // Add a `Cancel` button, which by default closes the `ContextMenu`. + menu.add(R.string.cancel); + break; + + // `IMAGE_TYPE` is an image. + case WebView.HitTestResult.IMAGE_TYPE: + // Get the image URL. + imageUrl = hitTestResult.getExtra(); + + // Set the image URL as the title of the `ContextMenu`. + menu.setHeaderTitle(imageUrl); + + // Add a `View Image` button. + menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() { + @Override + public boolean onMenuItemClick(MenuItem item) { + mainWebView.loadUrl(imageUrl, customHeaders); + return false; + } + }); + + // Add a `Download Image` button. + menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() { + @Override + public boolean onMenuItemClick(MenuItem item) { + // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`. + AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl); + downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download)); + return false; + } + }); + + // Add a `Cancel` button, which by default closes the `ContextMenu`. + menu.add(R.string.cancel); + break; + + + // `SRC_IMAGE_ANCHOR_TYPE` is an image that is also a link. + case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE: + // Get the image URL. + imageUrl = hitTestResult.getExtra(); + + // Set the image URL as the title of the `ContextMenu`. + menu.setHeaderTitle(imageUrl); + + // Add a `View Image` button. + menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() { + @Override + public boolean onMenuItemClick(MenuItem item) { + mainWebView.loadUrl(imageUrl, customHeaders); + return false; + } + }); + + // Add a `Download Image` button. + menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() { + @Override + public boolean onMenuItemClick(MenuItem item) { + // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`. + AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl); + downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download)); + return false; + } + }); + + // Add a `Cancel` button, which by default closes the `ContextMenu`. + menu.add(R.string.cancel); + break; + } } @Override - public void onCreateHomeScreenShortcut(DialogFragment dialogFragment) { + public void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment) { // Get shortcutNameEditText from the alert dialog. EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext); @@ -996,17 +1203,55 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } @Override - public void onDownloadFile(DialogFragment dialogFragment, String downloadUrl) { + public void onDownloadImage(AppCompatDialogFragment dialogFragment, String imageUrl) { + // Get a handle for the system `DOWNLOAD_SERVICE`. DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE); + + // Parse `imageUrl`. + DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(imageUrl)); + + // Get the file name from `dialogFragment`. + EditText downloadImageNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_image_name); + String imageName = downloadImageNameEditText.getText().toString(); + + // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`. + if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `imageName`. + downloadRequest.setDestinationInExternalFilesDir(this, "/", imageName); + } else { // Only set the title using `imageName`. + downloadRequest.setTitle(imageName); + } + + // Allow `MediaScanner` to index the download if it is a media file. + downloadRequest.allowScanningByMediaScanner(); + + // Add the URL as the description for the download. + downloadRequest.setDescription(imageUrl); + + // Show the download notification after the download is completed. + downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); + + // Initiate the download. + downloadManager.enqueue(downloadRequest); + } + + @Override + public void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl) { + // Get a handle for the system `DOWNLOAD_SERVICE`. + DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE); + + // Parse `downloadUrl`. DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(downloadUrl)); // Get the file name from `dialogFragment`. EditText downloadFileNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_file_name); String fileName = downloadFileNameEditText.getText().toString(); - // Set the download save in the the `DIRECTORY_DOWNLOADS`using `fileName`. // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`. - downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName); + if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `fileName`. + downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName); + } else { // Only set the title using `fileName`. + downloadRequest.setTitle(fileName); + } // Allow `MediaScanner` to index the download if it is a media file. downloadRequest.allowScanningByMediaScanner(); @@ -1017,7 +1262,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Show the download notification after the download is completed. downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); - // Initiate the download and display a Snackbar. + // Initiate the download. downloadManager.enqueue(downloadRequest); } @@ -1037,6 +1282,12 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation sslErrorHandler.proceed(); } + @Override + public void onUrlHistoryEntrySelected(int moveBackOrForwardSteps) { + // Load the history entry. + mainWebView.goBackOrForward(moveBackOrForwardSteps); + } + // Override onBackPressed to handle the navigation drawer and mainWebView. @Override public void onBackPressed() { @@ -1047,7 +1298,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation drawerLayout.closeDrawer(GravityCompat.START); } else { // Load the previous URL if available. - assert mainWebView != null; //This assert removes the incorrect warning in Android Studio on the following line that mainWebView might be null. if (mainWebView.canGoBack()) { mainWebView.goBack(); } else { @@ -1073,6 +1323,18 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation BannerAd.resumeAd(adView); } + @Override + public void onRestart() { + super.onRestart(); + + // Apply the settings from shared preferences, which might have been changed in `SettingsActivity`. + applySettings(); + + // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step. + updatePrivacyIcons(true); + + } + private void loadUrlFromTextBox() throws UnsupportedEncodingException { // Get the text from urlTextBox and convert it to a string. trim() removes white spaces from the beginning and end of the string. String unformattedUrlString = urlTextBox.getText().toString().trim(); @@ -1107,8 +1369,8 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Sanitize the search input and convert it to a DuckDuckGo search. final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8"); - // Use the correct search URL based on javaScriptEnabled. - if (javaScriptEnabled) { + // Use the correct search URL. + if (javaScriptEnabled) { // JavaScript is enabled. formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString; } else { // JavaScript is disabled. formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString; @@ -1117,12 +1379,131 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation mainWebView.loadUrl(formattedUrlString, customHeaders); - // Hides the keyboard so we can see the webpage. - InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE); + // Hide the keyboard so we can see the webpage. `0` indicates no additional flags. + inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0); + } + + public void findPreviousOnPage(View view) { + // Go to the previous highlighted phrase on the page. `false` goes backwards instead of forwards. + mainWebView.findNext(false); + } + + public void findNextOnPage(View view) { + // Go to the next highlighted phrase on the page. `true` goes forwards instead of backwards. + mainWebView.findNext(true); + } + + public void closeFindOnPage(View view) { + // Delete the contents of `find_on_page_edittext`. + findOnPageEditText.setText(null); + + // Clear the highlighted phrases. + mainWebView.clearMatches(); + + // Hide the Find on Page `RelativeLayout`. + LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout); + findOnPageLinearLayout.setVisibility(View.GONE); + + // Show the URL app bar. + Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar); + appBarToolbar.setVisibility(View.VISIBLE); + + // Hide the keyboard so we can see the webpage. `0` indicates no additional flags. inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0); } - public static void updatePrivacyIcons(Activity activity) { + private void applySettings() { + // Get the shared preference values. `this` references the current context. + SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); + + // Store the values from `sharedPreferences` in variables. + String userAgentString = sharedPreferences.getString("user_agent", "Default user agent"); + String customUserAgentString = sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"); + String javaScriptDisabledSearchString = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q="); + String javaScriptDisabledCustomSearchString = sharedPreferences.getString("javascript_disabled_search_custom_url", ""); + String javaScriptEnabledSearchString = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q="); + String javaScriptEnabledCustomSearchString = sharedPreferences.getString("javascript_enabled_search_custom_url", ""); + String homepageString = sharedPreferences.getString("homepage", "https://www.duckduckgo.com"); + String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100"); + swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", false); + boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", true); + boolean proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false); + + // Because they can be modified on-the-fly by the user, these default settings are only applied when the program first runs. + if (javaScriptEnabled == null) { // If `javaScriptEnabled` is null the program is just starting. + // Get the values from `sharedPreferences`. + javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false); + firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false); + thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false); + domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false); + saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false); + + // Apply the default settings. + mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled); + cookieManager.setAcceptCookie(firstPartyCookiesEnabled); + mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled); + mainWebView.getSettings().setSaveFormData(saveFormDataEnabled); + mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString)); + + // Set third-party cookies status if API >= 21. + if (Build.VERSION.SDK_INT >= 21) { + cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled); + } + } + + // Apply the other settings from `sharedPreferences`. + homepage = homepageString; + swipeRefreshLayout.setEnabled(swipeToRefreshEnabled); + + // Set the user agent initial status. + switch (userAgentString) { + case "Default user agent": + // Set the user agent to `""`, which uses the default value. + mainWebView.getSettings().setUserAgentString(""); + break; + + case "Custom user agent": + // Set the custom user agent. + mainWebView.getSettings().setUserAgentString(customUserAgentString); + break; + + default: + // Use the selected user agent. + mainWebView.getSettings().setUserAgentString(userAgentString); + break; + } + + // Set JavaScript disabled search. + if (javaScriptDisabledSearchString.equals("Custom URL")) { // Get the custom URL string. + javaScriptDisabledSearchURL = javaScriptDisabledCustomSearchString; + } else { // Use the string from the pre-built list. + javaScriptDisabledSearchURL = javaScriptDisabledSearchString; + } + + // Set JavaScript enabled search. + if (javaScriptEnabledSearchString.equals("Custom URL")) { // Get the custom URL string. + javaScriptEnabledSearchURL = javaScriptEnabledCustomSearchString; + } else { // Use the string from the pre-built list. + javaScriptEnabledSearchURL = javaScriptEnabledSearchString; + } + + // Set Do Not Track status. + if (doNotTrackEnabled) { + customHeaders.put("DNT", "1"); + } else { + customHeaders.remove("DNT"); + } + + // Set Orbot proxy status. + if (proxyThroughOrbot) { + // Set the proxy. `this` refers to the current activity where an `AlertDialog` might be displayed. + OrbotProxyHelper.setProxy(getApplicationContext(), this, "localhost", "8118"); + } else { // Reset the proxy to default. The host is `""` and the port is `"0"`. + OrbotProxyHelper.setProxy(getApplicationContext(), this, "", "0"); + } + } + + private void updatePrivacyIcons(boolean runInvalidateOptionsMenu) { // Get handles for the icons. MenuItem privacyIcon = mainMenu.findItem(R.id.toggleJavaScript); MenuItem firstPartyCookiesIcon = mainMenu.findItem(R.id.toggleFirstPartyCookies); @@ -1146,9 +1527,9 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } // Update `domStorageIcon`. - if (javaScriptEnabled && domStorageEnabled) { // Both JavaScript and DOM storage is enabled. + if (javaScriptEnabled && domStorageEnabled) { // Both JavaScript and DOM storage are enabled. domStorageIcon.setIcon(R.drawable.dom_storage_enabled); - } else if (javaScriptEnabled){ // JavaScript is enabled but DOM storage is disabled. + } else if (javaScriptEnabled) { // JavaScript is enabled but DOM storage is disabled. domStorageIcon.setIcon(R.drawable.dom_storage_disabled); } else { // JavaScript is disabled, so DOM storage is ghosted. domStorageIcon.setIcon(R.drawable.dom_storage_ghosted); @@ -1161,7 +1542,9 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation formDataIcon.setIcon(R.drawable.form_data_disabled); } - // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`. - ActivityCompat.invalidateOptionsMenu(activity); + // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`. `this` references the current activity. + if (runInvalidateOptionsMenu) { + ActivityCompat.invalidateOptionsMenu(this); + } } }