X-Git-Url: https://gitweb.stoutner.com/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2FWebview.java;h=50d67ac5a6162e0b671393961d3630c5549ddb85;hb=308e3d588ca43d02a5704a70875f54cb7e07efb8;hp=1fd1554828b983ada48c87c2f924fc93529d48b1;hpb=4b39729bc94e87fe56f63bc3ddd9c6287610a47a;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 1fd15548..50d67ac5 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/Webview.java +++ b/app/src/main/java/com/stoutner/privacybrowser/Webview.java @@ -1,11 +1,16 @@ 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.v4.widget.SwipeRefreshLayout; import android.support.v7.app.ActionBar; import android.support.v7.app.AppCompatActivity; import android.util.Patterns; @@ -13,7 +18,6 @@ import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; import android.view.View; -import android.view.ViewTreeObserver; import android.view.inputmethod.InputMethodManager; import android.webkit.WebChromeClient; import android.webkit.WebView; @@ -28,55 +32,51 @@ import java.net.URLEncoder; public class Webview extends AppCompatActivity { - static String formattedUrlString; - static WebView mainWebView; - static ProgressBar progressBar; - static SwipeRefreshLayout swipeToRefresh; - static EditText urlTextBox; - static ImageView favoriteIcon; - 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); - urlTextBox = (EditText) findViewById(R.id.urlTextBox); - swipeToRefresh = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayoutContainer); - mainWebView = (WebView) findViewById(R.id.mainWebView); - progressBar = (ProgressBar) findViewById(R.id.progressBar); - favoriteIcon = (ImageView) findViewById(R.id.favoriteIcon); + final WebView mainWebView = (WebView) findViewById(R.id.mainWebView); - // Remove the title from the action bar. final ActionBar actionBar = getSupportActionBar(); if (actionBar != null) { + // Remove the title from the action bar. actionBar.setDisplayShowTitleEnabled(false); - // actionBar.setHideOnContentScrollEnabled(true); - } - - // Implement swipe down to refresh. - swipeToRefresh.setColorSchemeColors(0xFF0097FF); - swipeToRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { - @Override - public void onRefresh() { - mainWebView.loadUrl(formattedUrlString); - } - }); - // Only enable swipeToRefresh if is mainWebView is scrolled to the top. - mainWebView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() { - @Override - public void onScrollChanged() { - if (mainWebView.getScrollY() == 0) { - swipeToRefresh.setEnabled(true); - } else { - swipeToRefresh.setEnabled(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; } - } - }); + }); + } 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 @@ -88,66 +88,58 @@ public class Webview extends AppCompatActivity { // Update the URL in urlTextBox when the page starts to load. @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { - urlTextBox.setText(url); + 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; - urlTextBox.setText(formattedUrlString); + + if (actionBar != null) { + EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox); + urlTextBox.setText(formattedUrlString); + } } }); 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); - - // Stop the refreshing indicator if it is running. - swipeToRefresh.setRefreshing(false); + // 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) { - favoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true)); - } - }); - - // 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, 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(mainWebView); - } catch (UnsupportedEncodingException e) { - e.printStackTrace(); - } - // If the enter key was pressed, consume the event. - return true; + // 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)); } - // If any other key was pressed, do not consume the event. - return false; } }); // 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); @@ -180,9 +172,14 @@ public class Webview extends AppCompatActivity { 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); // Sets the commands that relate to the menu entries. switch (menuItemId) { @@ -190,6 +187,10 @@ public class Webview extends AppCompatActivity { mainWebView.loadUrl(homepage); break; + case R.id.refresh: + mainWebView.loadUrl(formattedUrlString); + break; + case R.id.back: mainWebView.goBack(); break; @@ -197,6 +198,40 @@ public class Webview extends AppCompatActivity { 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); @@ -205,6 +240,8 @@ public class Webview extends AppCompatActivity { // 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 { @@ -212,47 +249,54 @@ public class Webview extends AppCompatActivity { } } - public void loadUrlFromTextBox(View view) throws UnsupportedEncodingException { - // 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(); + 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); - // 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()) { + // 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 http:// at the beginning if it is missing. Otherwise the app will segfault. - if (!unformattedUrlString.startsWith("http")) { - unformattedUrlString = "http://" + unformattedUrlString; - } + // 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()) { - // 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(); - } + // Add http:// at the beginning if it is missing. Otherwise the app will segfault. + if (!unformattedUrlString.startsWith("http")) { + unformattedUrlString = "http://" + unformattedUrlString; + } - // The ternary operator (? :) makes sure that unformattedUrl.get() does not cause a null pointer exception. - 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; + // 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(); + } - formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment); - formattedUrlString = formattedUri.build().toString(); + // 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; - } else { - // Sanitize the search input. - final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8"); - formattedUrlString = "https://duckduckgo.com/?q=" + encodedUrlString; - } + formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment); + formattedUrlString = formattedUri.build().toString(); - mainWebView.loadUrl(formattedUrlString); + } 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); + } } }