/*
- * Copyright © 2017 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2017-2018 Soren Stoutner <soren@stoutner.com>.
*
* This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
*
// We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <= 22.
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatDialogFragment;
+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.TextView;
import com.stoutner.privacybrowser.R;
import com.stoutner.privacybrowser.activities.MainWebViewActivity;
+import com.stoutner.privacybrowser.helpers.DomainsDatabaseHelper;
public class AddDomainDialog extends AppCompatDialogFragment {
// The public interface is used to send information back to the parent activity.
// Set the title.
dialogBuilder.setTitle(R.string.add_domain);
- // Set the view. The parent view is `null` because it will be assigned by the `AlertDialog`.
+ // Remove the incorrect lint warning below that `getActivity()` 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.add_domain_dialog, null));
- // Set an `onClick()` listener for the negative button.
- dialogBuilder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
- @Override
- public void onClick(DialogInterface dialog, int which) {
- // Do nothing. The `AlertDialog` will close automatically.
- }
+ // Set a listener for the negative button.
+ dialogBuilder.setNegativeButton(R.string.cancel, (DialogInterface dialog, int which) -> {
+ // Do nothing. The `AlertDialog` will close automatically.
});
- // Set an `onClick()` listener for the positive button.
- dialogBuilder.setPositiveButton(R.string.add, new DialogInterface.OnClickListener() {
- @Override
- public void onClick(DialogInterface dialog, int which) {
- // Return the `DialogFragment` to the parent activity on add.
- addDomainListener.onAddDomain(AddDomainDialog.this);
- }
+ // Set a listener for the positive button.
+ dialogBuilder.setPositiveButton(R.string.add, (DialogInterface dialog, int which) -> {
+ // Return the `DialogFragment` to the parent activity on add.
+ addDomainListener.onAddDomain(AddDomainDialog.this);
});
- // Create an `AlertDialog` from the `AlertDialog.Builder`.
+ // Create an alert dialog from the builder.
final AlertDialog alertDialog = dialogBuilder.create();
- // Remove the warning below the `setSoftInputMode` might produce `java.lang.NullPointerException`.
+ // Remove the warning below that `setSoftInputMode` might be null.
assert alertDialog.getWindow() != null;
- // Show the keyboard when the `AlertDialog` is displayed on the screen.
+ // Show the keyboard when the alert dialog is displayed on the screen.
alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
- // We need to show the `AlertDialog` before we can edit the contents.
+ // The alert dialog must be shown before the contents can be edited.
alertDialog.show();
- // Get a handle for `domain_name_edittext`.
- EditText addDomainEditText = (EditText) alertDialog.findViewById(R.id.domain_name_edittext);
+ // Initialize `domainsDatabaseHelper`. The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
+ final DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(getContext(), null, null, 0);
+
+ // Get handles for the views in the alert dialog.
+ final EditText addDomainEditText = alertDialog.findViewById(R.id.domain_name_edittext);
+ final TextView domainNameAlreadyExistsTextView = alertDialog.findViewById(R.id.domain_name_already_exists_textview);
+ final Button addButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
+
+ // Update the status of the warning text and the add button.
+ addDomainEditText.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) {
+ if (domainsDatabaseHelper.getCursorForDomainName(addDomainEditText.getText().toString()).getCount() >0) { // The domain already exists.
+ // Show the warning text.
+ domainNameAlreadyExistsTextView.setVisibility(View.VISIBLE);
+
+ // Disable the add button.
+ addButton.setEnabled(false);
+ } else { // The domain do not yet exist.
+ // Hide the warning text.
+ domainNameAlreadyExistsTextView.setVisibility(View.GONE);
+
+ // Enable the add button.
+ addButton.setEnabled(true);
+ }
+ }
+ });
// Get the current domain from `formattedUrlString`.
Uri currentUri = Uri.parse(MainWebViewActivity.formattedUrlString);
addDomainEditText.setText(currentUri.getHost());
// Allow the `enter` key on the keyboard to create the domain from `add_domain_edittext`.
- addDomainEditText.setOnKeyListener(new View.OnKeyListener() {
- public boolean onKey(View view, int keyCode, KeyEvent event) {
- // If the event is a key-down on the `enter` key, select the `PositiveButton` `Add`.
- if ((keyCode == KeyEvent.KEYCODE_ENTER) && (event.getAction() == KeyEvent.ACTION_DOWN)) {
- // Trigger `addDomainListener` and return the `DialogFragment` to the parent activity.
- addDomainListener.onAddDomain(AddDomainDialog.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;
- }
+ addDomainEditText.setOnKeyListener((View view, int keyCode, KeyEvent event) -> {
+ // If the event is a key-down on the `enter` key, select the `PositiveButton` `Add`.
+ if ((keyCode == KeyEvent.KEYCODE_ENTER) && (event.getAction() == KeyEvent.ACTION_DOWN)) {
+ // Trigger `addDomainListener` and return the `DialogFragment` to the parent activity.
+ addDomainListener.onAddDomain(AddDomainDialog.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;
}
});
projects / PrivacyBrowserAndroid.git / blobdiff