/*
- * Copyright 2015-2017 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2015-2019 Soren Stoutner <soren@stoutner.com>.
*
* This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
*
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
+import android.net.Uri;
import android.os.Bundle;
-import android.support.annotation.NonNull;
-// We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <=22.
-import android.support.v7.app.AppCompatDialogFragment;
+import android.text.Editable;
+import android.text.TextWatcher;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
+import android.widget.Button;
import android.widget.EditText;
+import androidx.annotation.NonNull;
+// `ShortcutInfoCompat`, `ShortcutManagerCompat`, and `IconCompat` can be switched to the non-compat versions once API >= 26.
+import androidx.core.content.pm.ShortcutInfoCompat;
+import androidx.core.content.pm.ShortcutManagerCompat;
+import androidx.core.graphics.drawable.IconCompat;
+import androidx.fragment.app.DialogFragment; // The AndroidX dialog fragment must be used or an error is produced on API <=22.
+
import com.stoutner.privacybrowser.activities.MainWebViewActivity;
import com.stoutner.privacybrowser.R;
-public class CreateHomeScreenShortcutDialog extends AppCompatDialogFragment {
- // The public interface is used to send information back to the parent activity.
- public interface CreateHomeScreenSchortcutListener {
- void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment);
+import java.io.ByteArrayOutputStream;
+
+public class CreateHomeScreenShortcutDialog extends DialogFragment {
+ // Create the class variables.
+ private String initialShortcutName;
+ private String initialUrlString;
+ private Bitmap favoriteIconBitmap;
+ private EditText shortcutNameEditText;
+ private EditText urlEditText;
+ private Button createButton;
+
+ public static CreateHomeScreenShortcutDialog createDialog(String shortcutName, String urlString, Bitmap favoriteIconBitmap) {
+ // Create a favorite icon byte array output stream.
+ ByteArrayOutputStream favoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
+
+ // Convert the favorite icon to a PNG and place it in the byte array output stream. `0` is for lossless compression (the only option for a PNG).
+ favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream);
+
+ // Convert the byte array output stream to a byte array.
+ byte[] favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray();
+
+ // Create a bundle.
+ Bundle bundle = new Bundle();
+
+ // Store the variables in the bundle.
+ bundle.putString("shortcut_name", shortcutName);
+ bundle.putString("url_string", urlString);
+ bundle.putByteArray("favorite_icon_byte_array", favoriteIconByteArray);
+
+ // Create a new instance of the dialog.
+ CreateHomeScreenShortcutDialog createHomeScreenShortcutDialog = new CreateHomeScreenShortcutDialog();
+
+ // Add the bundle to the dialog.
+ createHomeScreenShortcutDialog.setArguments(bundle);
+
+ // Return the new dialog.
+ return createHomeScreenShortcutDialog;
}
- //`createHomeScreenShortcutListener` is used in `onAttach()` and `onCreateDialog()`.
- private CreateHomeScreenSchortcutListener createHomeScreenShortcutListener;
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ // Run the default commands.
+ super.onCreate(savedInstanceState);
- // Check to make sure that the parent activity implements the listener.
- public void onAttach(Context context) {
- super.onAttach(context);
- try {
- createHomeScreenShortcutListener = (CreateHomeScreenSchortcutListener) context;
- } catch(ClassCastException exception) {
- throw new ClassCastException(context.toString() + " must implement CreateHomeScreenShortcutListener.");
- }
+ // Get the arguments.
+ Bundle arguments = getArguments();
+
+ // Remove the incorrect lint warning that the arguments might be null.
+ assert arguments != null;
+
+ // Store the strings in class variables.
+ initialShortcutName = arguments.getString("shortcut_name");
+ initialUrlString = arguments.getString("url_string");
+
+ // Get the favorite icon byte array.
+ byte[] favoriteIconByteArray = arguments.getByteArray("favorite_icon_byte_array");
+
+ // Remove the incorrect lint warning below that the favorite icon byte array might be null.
+ assert favoriteIconByteArray != null;
+
+ // Convert the favorite icon byte array to a bitmap and store it in a class variable.
+ favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
}
// `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
@Override
@NonNull
public Dialog onCreateDialog(Bundle savedInstanceState) {
+ // Remove the incorrect lint warning below that `getLayoutInflater()` might be null.
+ assert getActivity() != null;
+
// Get the activity's layout inflater.
LayoutInflater layoutInflater = getActivity().getLayoutInflater();
// Create a drawable version of the favorite icon.
- Drawable favoriteIconDrawable = new BitmapDrawable(getResources(), MainWebViewActivity.favoriteIconBitmap);
+ Drawable favoriteIconDrawable = new BitmapDrawable(getResources(), favoriteIconBitmap);
- // Use `AlertDialog.Builder` to create the `AlertDialog`. `R.style.LightAlertDialog` formats the color of the button text.
- AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.LightAlertDialog);
+ // Use a builder to create the alert dialog.
+ AlertDialog.Builder dialogBuilder;
+
+ // Set the style according to the theme.
+ if (MainWebViewActivity.darkTheme) {
+ dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogDark);
+ } else {
+ dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogLight);
+ }
+
+ // Set the title and icon.
dialogBuilder.setTitle(R.string.create_shortcut);
dialogBuilder.setIcon(favoriteIconDrawable);
- // The parent view is `null` because it will be assigned by `AlertDialog`.
+
+ // Set the view. The parent view is null because it will be assigned by the alert dialog.
dialogBuilder.setView(layoutInflater.inflate(R.layout.create_home_screen_shortcut_dialog, null));
- // Set an `onClick` listener on the negative button.
- dialogBuilder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
+ // Setup the close button. Using null closes the dialog without doing anything else.
+ dialogBuilder.setNegativeButton(R.string.cancel, null);
+
+ // Set an `onClick` listener on the create button.
+ dialogBuilder.setPositiveButton(R.string.create, (DialogInterface dialog, int which) -> {
+ // Create the home screen shortcut.
+ createHomeScreenShortcut();
+ });
+
+ // Create an alert dialog from the alert dialog builder.
+ final AlertDialog alertDialog = dialogBuilder.create();
+
+ // Remove the warning below that `getWindow()` might be null.
+ assert alertDialog.getWindow() != null;
+
+ // Disable screenshots if not allowed.
+ if (!MainWebViewActivity.allowScreenshots) {
+ alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
+ }
+
+ // The alert dialog must be shown before the contents may be edited.
+ alertDialog.show();
+
+ // Get a handle for the edit texts.
+ shortcutNameEditText = alertDialog.findViewById(R.id.shortcut_name_edittext);
+ urlEditText = alertDialog.findViewById(R.id.url_edittext);
+
+ // Populate the edit texts.
+ shortcutNameEditText.setText(initialShortcutName);
+ urlEditText.setText(initialUrlString);
+
+ // Get a handle for the create button.
+ createButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
+
+ // Add a text change listener to the shortcut name edit text.
+ shortcutNameEditText.addTextChangedListener(new TextWatcher() {
@Override
- public void onClick(DialogInterface dialog, int which) {
- // Do nothing if `Cancel` is clicked.
+ public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+ // Do nothing.
}
- });
- // Set an `onClick` listener on the positive button.
- dialogBuilder.setPositiveButton(R.string.create, new DialogInterface.OnClickListener() {
@Override
- public void onClick(DialogInterface dialog, int which) {
- createHomeScreenShortcutListener.onCreateHomeScreenShortcut(CreateHomeScreenShortcutDialog.this);
+ public void onTextChanged(CharSequence s, int start, int before, int count) {
+ // Do nothing.
}
- });
+ @Override
+ public void afterTextChanged(Editable s) {
+ // Update the create button.
+ updateCreateButton();
+ }
+ });
- // Create an `AlertDialog` from the `AlertDialog.Builder`.
- final AlertDialog alertDialog = dialogBuilder.create();
+ // Add a text change listener to the URL edit text.
+ urlEditText.addTextChangedListener(new TextWatcher() {
+ @Override
+ public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+ // Do nothing.
+ }
- // Remove the warning below that `setSoftInputMode` might produce `java.lang.NullPointerException`.
- assert alertDialog.getWindow() != null;
+ @Override
+ public void onTextChanged(CharSequence s, int start, int before, int count) {
+ // Do nothing.
+ }
- // Show the keyboard when the Dialog is displayed on the screen.
- alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
+ @Override
+ public void afterTextChanged(Editable s) {
+ // Update the create button.
+ updateCreateButton();
+ }
+ });
- // We need to show `alertDialog` before we can call `setOnKeyListener()` below.
- alertDialog.show();
+ // Allow the enter key on the keyboard to create the shortcut when editing the name.
+ shortcutNameEditText.setOnKeyListener((View view, int keyCode, KeyEvent keyEvent) -> {
+ // Check to see if the enter key was pressed.
+ if ((keyEvent.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
+ // Check the status of the create button.
+ if (createButton.isEnabled()) { // The create button is enabled.
+ // Create the home screen shortcut.
+ createHomeScreenShortcut();
- // Get a handle for `shortcut_name_edittext`.
- EditText shortcutNameEditText = (EditText) alertDialog.findViewById(R.id.shortcut_name_edittext);
+ // Manually dismiss the alert dialog.
+ alertDialog.dismiss();
- // Set the current `WebView` title as the text for `shortcutNameEditText`.
- shortcutNameEditText.setText(MainWebViewActivity.webViewTitle);
+ // Consume the event.
+ return true;
+ } else { // The create button is disabled.
+ // Do not consume the event.
+ return false;
+ }
+ } else { // Some other key was pressed.
+ // Do not consume the event.
+ return false;
+ }
+ });
- // Allow the "enter" key on the keyboard to create the shortcut.
- shortcutNameEditText.setOnKeyListener(new View.OnKeyListener() {
- public boolean onKey(View v, int keyCode, KeyEvent event) {
- // If the event is a key-down on the "enter" button, select the PositiveButton "Create".
- if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
- // Trigger the create listener.
- createHomeScreenShortcutListener.onCreateHomeScreenShortcut(CreateHomeScreenShortcutDialog.this);
+ // Set the enter key on the keyboard to create the shortcut when editing the URL.
+ urlEditText.setOnKeyListener((View view, int keyCode, KeyEvent keyEvent) -> {
+ // Check to see if the enter key was pressed.
+ if ((keyEvent.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
+ // Check the status of the create button.
+ if (createButton.isEnabled()) { // The create button is enabled.
+ // Create the home screen shortcut.
+ createHomeScreenShortcut();
- // Manually dismiss `alertDialog`.
+ // Manually dismiss the alert dialog.
alertDialog.dismiss();
// Consume the event.
return true;
- } else { // If any other key was pressed, do not consume the event.
+ } else { // The create button is disabled.
+ // Do not consume the event.
return false;
}
+ } else { // Some other key was pressed.
+ // Do not consume the event.
+ return false;
}
});
- // `onCreateDialog` requires the return of an `AlertDialog`.
+ // Return the alert dialog.
return alertDialog;
}
+
+ private void updateCreateButton() {
+ // Get the contents of the edit texts.
+ String shortcutName = shortcutNameEditText.getText().toString();
+ String urlString = urlEditText.getText().toString();
+
+ // Enable the create button if both the shortcut name and the URL are not empty.
+ createButton.setEnabled(!shortcutName.isEmpty() && !urlString.isEmpty());
+ }
+
+ private void createHomeScreenShortcut() {
+ // Get a handle for the context.
+ Context context = getContext();
+
+ // Remove the incorrect lint warning below that the context might be null.
+ assert context != null;
+
+ // Get the strings from the edit texts.
+ String shortcutName = shortcutNameEditText.getText().toString();
+ String urlString = urlEditText.getText().toString();
+
+ // Convert the favorite icon bitmap to an icon. `IconCompat` must be used until the minimum API >= 26.
+ IconCompat favoriteIcon = IconCompat.createWithBitmap(favoriteIconBitmap);
+
+ // Setup the shortcut intent.
+ Intent shortcutIntent = new Intent(Intent.ACTION_VIEW);
+ shortcutIntent.setData(Uri.parse(urlString));
+
+ // Create a shortcut info builder. The shortcut name becomes the shortcut ID.
+ ShortcutInfoCompat.Builder shortcutInfoBuilder = new ShortcutInfoCompat.Builder(context, shortcutName);
+
+ // Add the required fields to the shortcut info builder.
+ shortcutInfoBuilder.setIcon(favoriteIcon);
+ shortcutInfoBuilder.setIntent(shortcutIntent);
+ shortcutInfoBuilder.setShortLabel(shortcutName);
+
+ // Add the shortcut to the home screen. `ShortcutManagerCompat` can be switched to `ShortcutManager` once the minimum API >= 26.
+ ShortcutManagerCompat.requestPinShortcut(context, shortcutInfoBuilder.build(), null);
+ }
}
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projects / PrivacyBrowserAndroid.git / blobdiff