X-Git-Url: https://gitweb.stoutner.com/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2FWebview.java;h=53311f7adb6f5c51e9c8a86193a74ee2e4d3bc2f;hb=dcc9119811a9eed34df55da205c55c3092c262a4;hp=c5d52dfbfc6958337c7d0ff91927023c528046df;hpb=bcd01c3400c860a20621bd969dbd0243c3362908;p=PrivacyBrowserAndroid.git diff --git a/app/src/main/java/com/stoutner/privacybrowser/Webview.java b/app/src/main/java/com/stoutner/privacybrowser/Webview.java index c5d52dfb..53311f7a 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/Webview.java +++ b/app/src/main/java/com/stoutner/privacybrowser/Webview.java @@ -1,5 +1,5 @@ /** - * Copyright 2015 Soren Stoutner . + * Copyright 2015-2016 Soren Stoutner . * * This file is part of Privacy Browser. * @@ -41,10 +41,10 @@ import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.inputmethod.InputMethodManager; +import android.webkit.CookieManager; import android.webkit.DownloadListener; import android.webkit.WebChromeClient; -import android.webkit.WebResourceError; -import android.webkit.WebResourceRequest; +import android.webkit.WebStorage; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.EditText; @@ -61,22 +61,43 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc // favoriteIcon is public static so it can be accessed from CreateHomeScreenShortcut. public static Bitmap favoriteIcon; + // mainWebView is used in onCreate and onOptionsItemSelected. + private WebView mainWebView; + // formattedUrlString is used in onCreate, onOptionsItemSelected, onCreateHomeScreenShortcutCreate, and loadUrlFromTextBox. private String formattedUrlString; + // homepage is used in onCreate and onOptionsItemSelected. private String homepage = "https://www.duckduckgo.com/"; + // enableJavaScript is used in onCreate, onCreateOptionsMenu, and onOptionsItemSelected. + private boolean enableJavaScript; + // enableDomStorage is used in onCreate, onCreateOptionsMenu, and onOptionsItemSelected. + private boolean enableDomStorage; - // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. - @SuppressLint("SetJavaScriptEnabled") + /* enableSaveFormData does nothing until database storage is implemented. + // enableSaveFormData is used in onCreate, onCreateOptionsMenu, and onOptionsItemSelected. + private boolean enableSaveFormData; + */ + + // cookieManager is used in onCreate and onOptionsItemSelected. + private CookieManager cookieManager; + // enableCookies is used in onCreate, onCreateOptionsMenu, and onOptionsItemSelected. + private boolean enableCookies; + + // actionBar is used in onCreate and onOptionsItemSelected. + private ActionBar actionBar; @Override + // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. + @SuppressLint("SetJavaScriptEnabled") protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_webview); - final WebView mainWebView = (WebView) findViewById(R.id.mainWebView); final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout); final Activity mainWebViewActivity = this; - final ActionBar actionBar = getSupportActionBar(); + mainWebView = (WebView) findViewById(R.id.mainWebView); + actionBar = getSupportActionBar(); + if (actionBar != null) { // Remove the title from the action bar. actionBar.setDisplayShowTitleEnabled(false); @@ -115,9 +136,11 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc return true; } + /* These errors do not provide any useful information and clutter the screen. public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) { - Toast.makeText(mainWebViewActivity, "Error loading " + request + " Error: " + error, Toast.LENGTH_LONG).show(); + Toast.makeText(mainWebViewActivity, "Error loading " + request + " Error: " + error, Toast.LENGTH_SHORT).show(); } + */ // Update the URL in urlTextBox when the page starts to load. @Override @@ -172,7 +195,9 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc // Enter full screen video @Override public void onShowCustomView(View view, CustomViewCallback callback) { - getSupportActionBar().hide(); + if (getSupportActionBar() != null) { + getSupportActionBar().hide(); + } fullScreenVideoFrameLayout.addView(view); fullScreenVideoFrameLayout.setVisibility(View.VISIBLE); @@ -202,7 +227,9 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc // Exit full screen video public void onHideCustomView() { - getSupportActionBar().show(); + if (getSupportActionBar() != null) { + getSupportActionBar().show(); + } mainWebView.setVisibility(View.VISIBLE); @@ -211,6 +238,7 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc } }); + // Allow the downloading of files. mainWebView.setDownloadListener(new DownloadListener() { // Launch the Android download manager when a link leads to a download. @Override @@ -239,11 +267,24 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc mainWebView.getSettings().setDisplayZoomControls(false); } - // Enable JavaScript. - mainWebView.getSettings().setJavaScriptEnabled(true); + // Set JavaScript initial status. + enableJavaScript = false; + mainWebView.getSettings().setJavaScriptEnabled(enableJavaScript); + + // Set DOM Storage initial status. + enableDomStorage = false; + mainWebView.getSettings().setDomStorageEnabled(enableDomStorage); + + /* Save Form Data does nothing until database storage is implemented. + // Set Save Form Data initial status. + enableSaveFormData = true; + mainWebView.getSettings().setSaveFormData(enableSaveFormData); + */ - // Enable DOM Storage. - mainWebView.getSettings().setDomStorageEnabled(true); + // Set Cookies initial status. + enableCookies = false; + cookieManager = CookieManager.getInstance(); + cookieManager.setAcceptCookie(enableCookies); // Get the intent information that started the app. final Intent intent = getIntent(); @@ -263,39 +304,167 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc mainWebView.loadUrl(formattedUrlString); } + @Override + protected void onNewIntent(Intent intent) { + // Sets the new intent as the activity intent, so that any future getIntent() picks up this one. + setIntent(intent); + + if (intent.getData() != null) { + // Get the intent data and convert it to a string. + final Uri intentUriData = intent.getData(); + formattedUrlString = intentUriData.toString(); + } + + // Load the website. + mainWebView.loadUrl(formattedUrlString); + } + @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_webview, menu); + + // Get MenuItems for checkable menu items. + MenuItem toggleJavaScript = menu.findItem(R.id.toggleJavaScript); + MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage); + /* toggleSaveFormData does nothing until database storage is implemented. + MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData); + */ + MenuItem toggleCookies = menu.findItem(R.id.toggleCookies); + + // Set the initial status of the menu item checkboxes. + toggleJavaScript.setChecked(enableJavaScript); + toggleDomStorage.setChecked(enableDomStorage); + /* toggleSaveFormData does nothing until database storage is implemented. + toggleSaveFormData.setChecked(enableSaveFormData); + */ + toggleCookies.setChecked(enableCookies); + + return true; + } + + @Override + public boolean onPrepareOptionsMenu(Menu menu) { + // Enable Clear Cookies if there are any. + MenuItem clearCookies = menu.findItem(R.id.clearCookies); + clearCookies.setEnabled(cookieManager.hasCookies()); + + // Enable Back if canGoBack(). + MenuItem back = menu.findItem(R.id.back); + back.setEnabled(mainWebView.canGoBack()); + + // Enable forward if canGoForward(). + MenuItem forward = menu.findItem(R.id.forward); + forward.setEnabled(mainWebView.canGoForward()); + + // Run all the other default commands. + super.onPrepareOptionsMenu(menu); + + // return true displays the menu. return true; } - // @TargetApi(11) turns off the errors regarding copy and paste, which are removed from view in menu_webview.xml for lower version of Android. @Override + // @TargetApi(11) turns off the errors regarding copy and paste, which are removed from view in menu_webview.xml for lower version of Android. @TargetApi(11) + // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. + @SuppressLint("SetJavaScriptEnabled") + // removeAllCookies is deprecated, but it is required for API < 21. + @SuppressWarnings("deprecation") public boolean onOptionsItemSelected(MenuItem menuItem) { int menuItemId = menuItem.getItemId(); ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE); - ActionBar actionBar = getSupportActionBar(); - final WebView mainWebView = (WebView) findViewById(R.id.mainWebView); // Sets the commands that relate to the menu entries. switch (menuItemId) { + case R.id.toggleJavaScript: + if (enableJavaScript) { + enableJavaScript = false; + menuItem.setChecked(false); + mainWebView.getSettings().setJavaScriptEnabled(false); + mainWebView.reload(); + } else { + enableJavaScript = true; + menuItem.setChecked(true); + mainWebView.getSettings().setJavaScriptEnabled(true); + mainWebView.reload(); + } + return true; + + case R.id.toggleDomStorage: + if (enableDomStorage) { + enableDomStorage = false; + menuItem.setChecked(false); + mainWebView.getSettings().setDomStorageEnabled(false); + mainWebView.reload(); + } else { + enableDomStorage = true; + menuItem.setChecked(true); + mainWebView.getSettings().setDomStorageEnabled(true); + mainWebView.reload(); + } + return true; + + /* toggleSaveFormData does nothing until database storage is implemented. + case R.id.toggleSaveFormData: + if (enableSaveFormData) { + enableSaveFormData = false; + menuItem.setChecked(false); + mainWebView.getSettings().setSaveFormData(false); + mainWebView.reload(); + } else { + enableSaveFormData = true; + menuItem.setChecked(true); + mainWebView.getSettings().setSaveFormData(true); + mainWebView.reload(); + } + return true; + */ + + case R.id.toggleCookies: + if (enableCookies) { + enableCookies = false; + menuItem.setChecked(false); + cookieManager.setAcceptCookie(false); + mainWebView.reload(); + } else { + enableCookies = true; + menuItem.setChecked(true); + cookieManager.setAcceptCookie(true); + mainWebView.reload(); + } + return true; + + case R.id.clearDomStorage: + WebStorage webStorage = WebStorage.getInstance(); + webStorage.deleteAllData(); + Toast.makeText(getApplicationContext(), "DOM storage deleted", Toast.LENGTH_SHORT).show(); + return true; + + case R.id.clearCookies: + if (Build.VERSION.SDK_INT < 21) { + cookieManager.removeAllCookie(); + } else { + cookieManager.removeAllCookies(null); + } + Toast.makeText(getApplicationContext(), "Cookies deleted", Toast.LENGTH_SHORT).show(); + return true; + case R.id.home: mainWebView.loadUrl(homepage); - break; + return true; case R.id.refresh: - mainWebView.loadUrl(formattedUrlString); - break; + mainWebView.reload(); + return true; case R.id.back: mainWebView.goBack(); - break; + return true; case R.id.forward: mainWebView.goForward(); - break; + return true; case R.id.copyURL: // Make sure that actionBar is not null. @@ -303,7 +472,7 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox); clipboard.setPrimaryClip(ClipData.newPlainText("URL", urlTextBox.getText())); } - break; + return true; case R.id.pasteURL: // Make sure that actionBar is not null. @@ -317,7 +486,7 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc e.printStackTrace(); } } - break; + return true; case R.id.shareURL: // Make sure that actionBar is not null. @@ -329,7 +498,7 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc shareIntent.setType("text/plain"); startActivity(Intent.createChooser(shareIntent, "Share URL")); } - break; + return true; case R.id.addToHomescreen: // Show the CreateHomeScreenShortcut AlertDialog and name this instance createShortcut. @@ -337,7 +506,7 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc shortcutDialog.show(getSupportFragmentManager(), "createShortcut"); //Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below. - break; + return true; case R.id.downloads: // Launch the system Download Manager. @@ -347,17 +516,36 @@ public class Webview extends AppCompatActivity implements CreateHomeScreenShortc downloadManangerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(downloadManangerIntent); - break; + return true; case R.id.about: // Show the AboutDialog AlertDialog and name this instance aboutDialog. AppCompatDialogFragment aboutDialog = new AboutDialog(); aboutDialog.show(getSupportFragmentManager(), "aboutDialog"); + return true; - break; - } + case R.id.exit: + // Clear DOM storage. + WebStorage domStorage = WebStorage.getInstance(); + domStorage.deleteAllData(); + + // Clear cookies. + if (Build.VERSION.SDK_INT < 21) { + cookieManager.removeAllCookie(); + } else { + cookieManager.removeAllCookies(null); + } - return super.onOptionsItemSelected(menuItem); + // Destroy the internal state of the webview. + mainWebView.destroy(); + + // Close Privacy Browser. + finish(); + return true; + + default: + return super.onOptionsItemSelected(menuItem); + } } @Override