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Commit 9c21429a authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
Browse files

Merge "Limit bluetooth broadcast password to single byte characters" into main am: abe50108 

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/2728234



Change-Id: Idca058c3f3d2de4324d51c9bfd0225cd44c2dbf5
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents 5a3df756 abe50108

src/com/android/settings/bluetooth/BluetoothFindBroadcastsFragment.java

+61 −0
Original line number Diff line number Diff line
@@ -30,10 +30,16 @@ import android.bluetooth.le.ScanFilter; 
import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.text.Editable;

import android.text.InputFilter;

import android.text.InputType;

import android.text.Spanned;

import android.text.TextWatcher;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.View;

import android.view.WindowManager;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

import android.widget.Toast;
@@ -467,9 +473,64 @@ public class BluetoothFindBroadcastsFragment extends RestrictedDashboardFragment 
                .create();



        alertDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);

        addTextWatcher(alertDialog, editText);

        alertDialog.show();

        updateBtnState(alertDialog, false);

    }



    private void addTextWatcher(AlertDialog alertDialog, EditText editText) {

        if (alertDialog == null || editText == null) {

            return;

        }

        final InputFilter[] filter = new InputFilter[] {mInputFilter};

        editText.setFilters(filter);

        editText.setInputType(InputType.TYPE_CLASS_TEXT

                | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);

        TextWatcher bCodeTextWatcher = 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) {

                boolean breakBroadcastCodeRuleTextLengthLessThanMin =

                        s.length() > 0 && s.toString().getBytes().length < 4;

                boolean breakBroadcastCodeRuleTextLengthMoreThanMax =

                        s.toString().getBytes().length > 16;

                boolean breakRule = breakBroadcastCodeRuleTextLengthLessThanMin

                        || breakBroadcastCodeRuleTextLengthMoreThanMax;

                updateBtnState(alertDialog, !breakRule);

            }

        };

        editText.addTextChangedListener(bCodeTextWatcher);

    }



    private void updateBtnState(AlertDialog alertDialog, boolean isEnable) {

        Button positiveBtn = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);

        if (positiveBtn != null) {

            positiveBtn.setEnabled(isEnable ? true : false);

        }

    }



    private InputFilter mInputFilter = new InputFilter() {

        @Override

        public CharSequence filter(CharSequence source, int start, int end,

                Spanned dest, int dstart, int dend) {

            byte[] bytes = source.toString().getBytes(StandardCharsets.UTF_8);

            if (bytes.length == source.length()) {

                return source;

            } else {

                return "";

            }

        }

    };



    private void handleSearchStarted() {

        cacheRemoveAllPrefs(mBroadcastSourceListCategory);

        addConnectedSourcePreference();