/*
- * Copyright 2016-2017 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2016-2019 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.SharedPreferences;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
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.preference.PreferenceManager;
+import android.text.Editable;
+import android.text.TextWatcher;
import android.view.KeyEvent;
import android.view.View;
import android.view.WindowManager;
+import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
+
+import androidx.annotation.NonNull;
+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.BookmarksActivity;
-import com.stoutner.privacybrowser.activities.MainWebViewActivity;
import com.stoutner.privacybrowser.R;
import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
-public class EditBookmarkDialog extends AppCompatDialogFragment {
+import java.io.ByteArrayOutputStream;
+
+public class EditBookmarkDialog extends DialogFragment {
+ // Define the edit bookmark listener.
+ private EditBookmarkListener editBookmarkListener;
+
// The public interface is used to send information back to the parent activity.
public interface EditBookmarkListener {
- void onSaveEditBookmark(AppCompatDialogFragment dialogFragment);
+ void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, Bitmap favoriteIconBitmap);
}
- // `editBookmarkListener` is used in `onAttach()` and `onCreateDialog()`
- private EditBookmarkListener editBookmarkListener;
-
- public void onAttach(Context context) {
+ public void onAttach(@NonNull Context context) {
+ // Run the default commands.
super.onAttach(context);
- // Get a handle for `EditBookmarkListener` from `context`.
- try {
- editBookmarkListener = (EditBookmarkListener) context;
- } catch(ClassCastException exception) {
- throw new ClassCastException(context.toString() + " must implement EditBookmarkListener.");
- }
+ // Get a handle for `EditBookmarkListener` from the launching context.
+ editBookmarkListener = (EditBookmarkListener) context;
+ }
+
+ // Store the database ID in the arguments bundle.
+ public static EditBookmarkDialog bookmarkDatabaseId(int databaseId, 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 an arguments bundle.
+ Bundle argumentsBundle = new Bundle();
+
+ // Store the variables in the bundle.
+ argumentsBundle.putInt("database_id", databaseId);
+ argumentsBundle.putByteArray("favorite_icon_byte_array", favoriteIconByteArray);
+
+ // Create a new instance of the dialog.
+ EditBookmarkDialog editBookmarkDialog = new EditBookmarkDialog();
+
+ // Add the arguments bundle to the dialog.
+ editBookmarkDialog.setArguments(argumentsBundle);
+
+ // Return the new dialog.
+ return editBookmarkDialog;
}
// `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
@Override
@NonNull
public Dialog onCreateDialog(Bundle savedInstanceState) {
- // Get a long array with the the databaseId of the selected bookmark and convert it to an `int`.
- long[] selectedBookmarkLongArray = BookmarksActivity.checkedItemIds;
- int selectedBookmarkDatabaseId = (int) selectedBookmarkLongArray[0];
+ // Get the arguments.
+ Bundle arguments = getArguments();
+
+ // Remove the incorrect lint warning below that the arguments might be null.
+ assert arguments != null;
+
+ // Store the bookmark database ID in the class variable.
+ int selectedBookmarkDatabaseId = arguments.getInt("database_id");
- // Get a `Cursor` with the specified bookmark and move it to the first position.
- Cursor bookmarkCursor = BookmarksActivity.bookmarksDatabaseHelper.getBookmarkCursor(selectedBookmarkDatabaseId);
+ // 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.
+ Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
+
+ // Initialize the database helper. The `0` specifies a database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
+ BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(getContext(), null, null, 0);
+
+ // Get a `Cursor` with the selected bookmark and move it to the first position.
+ Cursor bookmarkCursor = bookmarksDatabaseHelper.getBookmark(selectedBookmarkDatabaseId);
bookmarkCursor.moveToFirst();
- // Use `AlertDialog.Builder` to create the `AlertDialog`. The style formats the color of the button text.
- AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.LightAlertDialog);
+ // Use an alert dialog builder to create the alert dialog.
+ AlertDialog.Builder dialogBuilder;
+
+ // Get a handle for the shared preferences.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getContext());
+
+ // Get the screenshot and theme preferences.
+ boolean darkTheme = sharedPreferences.getBoolean("dark_theme", false);
+ boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
+
+ // Set the style according to the theme.
+ if (darkTheme) {
+ dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogDark);
+ } else {
+ dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogLight);
+ }
+
+ // Set the title.
dialogBuilder.setTitle(R.string.edit_bookmark);
- // The parent view is `null` because it will be assigned by `AlertDialog`.
+
+ // Remove the incorrect lint warning that `getActivity().getLayoutInflater()` might be null.
+ assert getActivity() != null;
+
+ // Set the view. The parent view is null because it will be assigned by the alert dialog.
dialogBuilder.setView(getActivity().getLayoutInflater().inflate(R.layout.edit_bookmark_dialog, null));
- // Set an `onClick()` listener for the negative button.
- dialogBuilder.setNegativeButton(R.string.cancel, new Dialog.OnClickListener() {
- @Override
- public void onClick(DialogInterface dialog, int which) {
- // Do nothing. The `AlertDialog` will close automatically.
- }
+ // Set the cancel button listener.
+ dialogBuilder.setNegativeButton(R.string.cancel, (DialogInterface dialog, int which) -> {
+ // Do nothing. The alert dialog will close automatically.
});
- // Set the `onClick()` listener fo the positive button.
- dialogBuilder.setPositiveButton(R.string.save, new Dialog.OnClickListener() {
- @Override
- public void onClick(DialogInterface dialog, int which) {
- // Return the `DialogFragment` to the parent activity on save.
- editBookmarkListener.onSaveEditBookmark(EditBookmarkDialog.this);
- }
+ // Set the save button listener.
+ dialogBuilder.setPositiveButton(R.string.save, (DialogInterface dialog, int which) -> {
+ // Return the dialog fragment to the parent activity.
+ editBookmarkListener.onSaveBookmark(this, selectedBookmarkDatabaseId, favoriteIconBitmap);
});
-
- // Create an `AlertDialog` from the `AlertDialog.Builder`.
+ // Create an alert dialog from the builder.
final AlertDialog alertDialog = dialogBuilder.create();
- // Remove the warning below that `setSoftInputMode` might produce `java.lang.NullPointerException`.
+ // remove the incorrect lint warning below that `getWindow().addFlags()` might be null.
assert alertDialog.getWindow() != null;
- // Show the keyboard when `alertDialog` is displayed on the screen.
- alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
+ // Disable screenshots if not allowed.
+ if (!allowScreenshots) {
+ alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
+ }
- // We need to show the `AlertDialog` before we can modify items in the layout.
+ // The alert dialog must be shown before items in the layout can be modified.
alertDialog.show();
- // Get the current favorite icon byte array from the `Cursor`.
+ // Get handles for the layout items.
+ RadioGroup iconRadioGroup = alertDialog.findViewById(R.id.edit_bookmark_icon_radiogroup);
+ ImageView currentIconImageView = alertDialog.findViewById(R.id.edit_bookmark_current_icon);
+ ImageView newFavoriteIconImageView = alertDialog.findViewById(R.id.edit_bookmark_webpage_favorite_icon);
+ EditText nameEditText = alertDialog.findViewById(R.id.edit_bookmark_name_edittext);
+ EditText urlEditText = alertDialog.findViewById(R.id.edit_bookmark_url_edittext);
+ Button editButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
+
+ // Get the current favorite icon byte array from the cursor.
byte[] currentIconByteArray = bookmarkCursor.getBlob(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
- // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
+
+ // Convert the byte array to a bitmap beginning at the first byte and ending at the last.
Bitmap currentIconBitmap = BitmapFactory.decodeByteArray(currentIconByteArray, 0, currentIconByteArray.length);
- // Display `currentIconBitmap` in `edit_bookmark_current_icon`.
- ImageView currentIconImageView = (ImageView) alertDialog.findViewById(R.id.edit_bookmark_current_icon);
- assert currentIconImageView != null; // Remove the warning below that `currentIconImageView` might be null;
+
+ // Display the current icon bitmap.
currentIconImageView.setImageBitmap(currentIconBitmap);
- // Get a `Bitmap` of the favorite icon from `MainWebViewActivity` and display it in `edit_bookmark_web_page_favorite_icon`.
- ImageView newFavoriteIconImageView = (ImageView) alertDialog.findViewById(R.id.edit_bookmark_web_page_favorite_icon);
- assert newFavoriteIconImageView != null; // Remove the warning below that `newFavoriteIcon` might be null.
- newFavoriteIconImageView.setImageBitmap(MainWebViewActivity.favoriteIcon);
+ // Set the new favorite icon bitmap.
+ newFavoriteIconImageView.setImageBitmap(favoriteIconBitmap);
+
+ // Store the current bookmark name and URL.
+ String currentName = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
+ String currentUrl = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL));
+
+ // Populate the edit texts.
+ nameEditText.setText(currentName);
+ urlEditText.setText(currentUrl);
+
+ // Initially disable the edit button.
+ editButton.setEnabled(false);
+
+ // Update the edit button if the icon selection changes.
+ iconRadioGroup.setOnCheckedChangeListener((RadioGroup group, int checkedId) -> {
+ // Update the edit button.
+ updateEditButton(alertDialog, currentName, currentUrl);
+ });
+
+ // Update the edit button if the bookmark name changes.
+ nameEditText.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) {
+ // Update the edit button.
+ updateEditButton(alertDialog, currentName, currentUrl);
+ }
+ });
+
+ // Update the edit button if the URL changes.
+ urlEditText.addTextChangedListener(new TextWatcher() {
+ @Override
+ public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+ // Do nothing.
+ }
- // Load the text for `edit_bookmark_name_edittext`.
- EditText bookmarkNameEditText = (EditText) alertDialog.findViewById(R.id.edit_bookmark_name_edittext);
- assert bookmarkNameEditText != null; // Remove the warning below that `bookmarkNameEditText` might be null.
- bookmarkNameEditText.setText(bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
+ @Override
+ public void onTextChanged(CharSequence s, int start, int before, int count) {
+ // Do nothing.
+ }
- // Allow the `enter` key on the keyboard to save the bookmark from `edit_bookmark_name_edittext`.
- bookmarkNameEditText.setOnKeyListener(new View.OnKeyListener() {
@Override
- public boolean onKey(View v, int keyCode, KeyEvent event) {
- // If the event is an `ACTION_DOWN` on the `enter` key, save the bookmark.
- if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
- // Trigger `onSaveEditBookmark()` and return the `DialogFragment` to the parent activity.
- editBookmarkListener.onSaveEditBookmark(EditBookmarkDialog.this);
- // Manually dismiss `alertDialog`.
- alertDialog.dismiss();
- // Consume the event.
- return true;
- } else { // If any other key was pressed, do not consume the event.
- return false;
- }
+ public void afterTextChanged(Editable s) {
+ // Update the edit button.
+ updateEditButton(alertDialog, currentName, currentUrl);
+ }
+ });
+
+ // Allow the enter key on the keyboard to save the bookmark from the bookmark name edit text.
+ nameEditText.setOnKeyListener((View v, int keyCode, KeyEvent event) -> {
+ // Save the bookmark if the event is a key-down on the "enter" button.
+ if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER) && editButton.isEnabled()) { // The enter key was pressed and the edit button is enabled.
+ // Trigger the `Listener` and return the `DialogFragment` to the parent activity.
+ editBookmarkListener.onSaveBookmark(this, selectedBookmarkDatabaseId, favoriteIconBitmap);
+
+ // Manually dismiss `alertDialog`.
+ alertDialog.dismiss();
+
+ // Consume the event.
+ return true;
+ } else { // If any other key was pressed, or if the edit button is currently disabled, do not consume the event.
+ return false;
}
});
- // Load the text for `edit_bookmark_url_edittext`.
- EditText bookmarkUrlEditText = (EditText) alertDialog.findViewById(R.id.edit_bookmark_url_edittext);
- assert bookmarkUrlEditText != null;// Remove the warning below that `bookmarkUrlEditText` might be null.
- bookmarkUrlEditText.setText(bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
-
- // Allow the "enter" key on the keyboard to save the bookmark from `edit_bookmark_url_edittext`.
- bookmarkUrlEditText.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 `Save`.
- if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
- // Trigger `editBookmarkListener` and return the DialogFragment to the parent activity.
- editBookmarkListener.onSaveEditBookmark(EditBookmarkDialog.this);
- // Manually dismiss the `AlertDialog`.
- alertDialog.dismiss();
- // Consume the event.
- return true;
- } else { // If any other key was pressed, do not consume the event.
- return false;
- }
+ // Allow the enter key on the keyboard to save the bookmark from the URL edit text.
+ urlEditText.setOnKeyListener((View v, int keyCode, KeyEvent event) -> {
+ // Save the bookmark if the event is a key-down on the "enter" button.
+ if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER) && editButton.isEnabled()) { // The enter key was pressed and the edit button is enabled.
+ // Trigger the `Listener` and return the DialogFragment to the parent activity.
+ editBookmarkListener.onSaveBookmark(this, selectedBookmarkDatabaseId, favoriteIconBitmap);
+
+ // Manually dismiss the alert dialog.
+ alertDialog.dismiss();
+
+ // Consume the event.
+ return true;
+ } else { // If any other key was pressed, or if the edit button is currently disabled, do not consume the event.
+ return false;
}
});
- // `onCreateDialog` requires the return of an `AlertDialog`.
+ // Return the alert dialog.
return alertDialog;
}
+
+ private void updateEditButton(AlertDialog alertdialog, String currentName, String currentUrl) {
+ // Get handles for the views.
+ EditText nameEditText = alertdialog.findViewById(R.id.edit_bookmark_name_edittext);
+ EditText urlEditText = alertdialog.findViewById(R.id.edit_bookmark_url_edittext);
+ RadioButton newIconRadioButton = alertdialog.findViewById(R.id.edit_bookmark_webpage_favorite_icon_radiobutton);
+ Button editButton = alertdialog.getButton(AlertDialog.BUTTON_POSITIVE);
+
+ // Get the text from the edit texts.
+ String newName = nameEditText.getText().toString();
+ String newUrl = urlEditText.getText().toString();
+
+ // Has the favorite icon changed?
+ boolean iconChanged = newIconRadioButton.isChecked();
+
+ // Has the name changed?
+ boolean nameChanged = !newName.equals(currentName);
+
+ // Has the URL changed?
+ boolean urlChanged = !newUrl.equals(currentUrl);
+
+ // Update the enabled status of the edit button.
+ editButton.setEnabled(iconChanged || nameChanged || urlChanged);
+ }
}
\ No newline at end of file