package com.stoutner.privacybrowser;
+import android.annotation.SuppressLint;
+import android.annotation.TargetApi;
import android.app.Activity;
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
import android.content.Intent;
+import android.graphics.Bitmap;
import android.net.Uri;
+import android.os.Build;
import android.os.Bundle;
+import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
+import android.util.Patterns;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.EditText;
+import android.widget.ImageView;
import android.widget.ProgressBar;
-
+import java.io.UnsupportedEncodingException;
+import java.net.MalformedURLException;
import java.net.URL;
-
+import java.net.URLEncoder;
public class Webview extends AppCompatActivity {
- static String formattedUrlString;
- static WebView mainWebView;
- static ProgressBar progressBar;
- static final String homepage = "https://www.duckduckgo.com";
+ private String formattedUrlString;
+ private String homepage = "https://www.duckduckgo.com/";
+
+ // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
+ @SuppressLint("SetJavaScriptEnabled")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview);
- final EditText urlTextBox = (EditText) findViewById(R.id.urlTextBox);
- mainWebView = (WebView) findViewById(R.id.mainWebView);
- progressBar = (ProgressBar) findViewById(R.id.progressBar);
+ final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
+
+ final ActionBar actionBar = getSupportActionBar();
+ if (actionBar != null) {
+ // Remove the title from the action bar.
+ actionBar.setDisplayShowTitleEnabled(false);
+
+ // Add the custom app_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar.
+ actionBar.setCustomView(R.layout.app_bar);
+ actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
+
+ // Set the "go" button on the keyboard to load the URL in urlTextBox.
+ EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox);
+ urlTextBox.setOnKeyListener(new View.OnKeyListener() {
+ 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 ((event.getAction() == KeyEvent.ACTION_DOWN) &&
+ (keyCode == KeyEvent.KEYCODE_ENTER)) {
+ // Load the URL into the mainWebView and consume the event.
+ try {
+ loadUrlFromTextBox();
+ } catch (UnsupportedEncodingException e) {
+ e.printStackTrace();
+ }
+ // If the enter key was pressed, consume the event.
+ return true;
+ }
+ // If any other key was pressed, do not consume the event.
+ return false;
+ }
+ });
+ }
- // setWebViewClient makes this WebView the default handler for URLs inside the app, so that links are not kicked out to other apps.
- // Save the URL to formattedUrlString and update urlTextBox before loading mainWebView.
mainWebView.setWebViewClient(new WebViewClient() {
+ // setWebViewClient makes this WebView the default handler for URLs inside the app, so that links are not kicked out to other apps.
+ // Save the URL to formattedUrlString and update urlTextBox before loading mainWebView.
+ @Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
- formattedUrlString=url;
- urlTextBox.setText(formattedUrlString);
mainWebView.loadUrl(url);
return true;
}
+
+ // Update the URL in urlTextBox when the page starts to load.
+ @Override
+ public void onPageStarted(WebView view, String url, Bitmap favicon) {
+ if (actionBar != null) {
+ EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox);
+ urlTextBox.setText(url);
+ }
+ }
+
+ // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load.
+ @Override
+ public void onPageFinished(WebView view, String url) {
+ formattedUrlString = url;
+
+ if (actionBar != null) {
+ EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox);
+ urlTextBox.setText(formattedUrlString);
+ }
+ }
});
- // Update the progress bar when a page is loading.
mainWebView.setWebChromeClient(new WebChromeClient() {
+ // Update the progress bar when a page is loading.
+ @Override
public void onProgressChanged(WebView view, int progress) {
- progressBar.setProgress(progress);
- if (progress < 100) {
- progressBar.setVisibility(View.VISIBLE);
- } else {
- progressBar.setVisibility(View.GONE);
+ // Make sure that actionBar is not null.
+ if (actionBar != null) {
+ ProgressBar progressBar = (ProgressBar) actionBar.getCustomView().findViewById(R.id.progressBar);
+ progressBar.setProgress(progress);
+ if (progress < 100) {
+ progressBar.setVisibility(View.VISIBLE);
+ } else {
+ progressBar.setVisibility(View.GONE);
+ }
+ }
+ }
+
+ // Set the favorite icon when it changes.
+ @Override
+ public void onReceivedIcon(WebView view, Bitmap icon) {
+ // Make sure that actionBar is not null.
+ if (actionBar != null) {
+ ImageView favoriteIcon = (ImageView) actionBar.getCustomView().findViewById(R.id.favoriteIcon);
+ favoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
}
}
});
// Allow pinch to zoom.
mainWebView.getSettings().setBuiltInZoomControls(true);
- // Hide zoom controls.
- mainWebView.getSettings().setDisplayZoomControls(false);
+ // Hide zoom controls API is 11 or greater.
+ if (Build.VERSION.SDK_INT >= 11) {
+ mainWebView.getSettings().setDisplayZoomControls(false);
+ }
// Enable JavaScript.
mainWebView.getSettings().setJavaScriptEnabled(true);
if (intent.getData() != null) {
// Get the intent data and convert it to a string.
final Uri intentUriData = intent.getData();
- Webview.formattedUrlString = intentUriData.toString();
+ formattedUrlString = intentUriData.toString();
}
// If formattedUrlString is null assign the homepage to it.
formattedUrlString = homepage;
}
- // Place the formattedUrlString in the address bar and load the website.
- urlTextBox.setText(formattedUrlString);
+ // Load the initial website.
mainWebView.loadUrl(formattedUrlString);
-
- // Set the "go" button on the keyboard to load the URL.
- urlTextBox.setOnKeyListener(new View.OnKeyListener() {
- public boolean onKey(View v, int keyCode, KeyEvent event) {
- // If the event is a key-down event on the "enter" button
- if ((event.getAction() == KeyEvent.ACTION_DOWN) &&
- (keyCode == KeyEvent.KEYCODE_ENTER)) {
- // Load the URL into the mainWebView and consume the event.
- loadUrlFromTextBox(mainWebView);
- return true;
- }
- // Do not consume the event.
- return false;
- }
- });
-
}
@Override
return true;
}
+ // @TargetApi(11) turns off the errors regarding copy and paste, which are removied from view in menu_webview.xml for lower version of Android.
@Override
+ @TargetApi(11)
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);
- // Use the menu items to go forward or back.
+ // Sets the commands that relate to the menu entries.
switch (menuItemId) {
+ case R.id.home:
+ mainWebView.loadUrl(homepage);
+ break;
+
+ case R.id.refresh:
+ mainWebView.loadUrl(formattedUrlString);
+ break;
+
case R.id.back:
mainWebView.goBack();
break;
+
case R.id.forward:
mainWebView.goForward();
break;
+
+ case R.id.copyURL:
+ // Make sure that actionBar is not null.
+ if (actionBar != null) {
+ EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox);
+ clipboard.setPrimaryClip(ClipData.newPlainText("URL", urlTextBox.getText()));
+ }
+ break;
+
+ case R.id.pasteURL:
+ // Make sure that actionBar is not null.
+ if (actionBar != null) {
+ ClipData.Item clipboardData = clipboard.getPrimaryClip().getItemAt(0);
+ EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox);
+ urlTextBox.setText(clipboardData.coerceToText(this));
+ try {
+ loadUrlFromTextBox();
+ } catch (UnsupportedEncodingException e) {
+ e.printStackTrace();
+ }
+ }
+ break;
+
+ case R.id.shareURL:
+ // Make sure that actionBar is not null.
+ if (actionBar != null) {
+ EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox);
+ Intent shareIntent = new Intent();
+ shareIntent.setAction(Intent.ACTION_SEND);
+ shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
+ shareIntent.setType("text/plain");
+ startActivity(Intent.createChooser(shareIntent, "Share URL"));
+ }
+ break;
}
return super.onOptionsItemSelected(menuItem);
// Override onBackPressed so that if mainWebView can go back it does when the system back button is pressed.
@Override
public void onBackPressed() {
+ final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
+
if (mainWebView.canGoBack()) {
mainWebView.goBack();
} else {
}
}
- public void loadUrlFromTextBox(View view) {
- // Get the text from urlTextInput and convert it to a string.
- final EditText urlTextBox = (EditText) findViewById(R.id.urlTextBox);
- final String unformattedUrlString = urlTextBox.getText().toString();
+ public void loadUrlFromTextBox() throws UnsupportedEncodingException {
+ // Make sure that actionBar is not null.
+ ActionBar actionBar = getSupportActionBar();
+ if (actionBar != null) {
+ final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
+ EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox);
- // Don't do anything unless unformattedUrlString is at least 6 characters long.
- if (unformattedUrlString.length() < 6) { return; }
+ // Get the text from urlTextInput and convert it to a string.
+ String unformattedUrlString = urlTextBox.getText().toString();
+ URL unformattedUrl = null;
+ Uri.Builder formattedUri = new Uri.Builder();
- // Add correct protocol formatting to the beginning of the URL if needed.
- final String firstSixCharacters = unformattedUrlString.substring(0, 6);
+ // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
+ if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
- switch (firstSixCharacters) {
- case "http:/":
- formattedUrlString = unformattedUrlString;
- break;
- case "https:":
- formattedUrlString = unformattedUrlString;
- break;
- case "ftp://":
- formattedUrlString = unformattedUrlString;
- break;
- default:
- formattedUrlString = "http://" + unformattedUrlString;
- }
+ // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
+ if (!unformattedUrlString.startsWith("http")) {
+ unformattedUrlString = "http://" + unformattedUrlString;
+ }
- final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
+ // 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.
+ try {
+ unformattedUrl = new URL(unformattedUrlString);
+ } catch (MalformedURLException e) {
+ e.printStackTrace();
+ }
- // Place the URL text back in the address bar and load the website.
- urlTextBox.setText(formattedUrlString);
- mainWebView.loadUrl(formattedUrlString);
+ // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
+ final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
+ final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
+ final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
+ final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
+ final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
+
+ formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
+ formattedUrlString = formattedUri.build().toString();
+
+ } else {
+ // Sanitize the search input and convert it to a DuckDuckGo search.
+ final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
+ formattedUrlString = "https://duckduckgo.com/?q=" + encodedUrlString;
+ }
+
+ mainWebView.loadUrl(formattedUrlString);
- // Hides the keyboard so we can see the webpage.
- InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
- inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
+ // Hides the keyboard so we can see the webpage.
+ InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
+ inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
+ }
}
}
projects / PrivacyBrowserAndroid.git / blobdiff