AboutFragment.java

package com.automattic.simplenote;

import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.text.Html;
import android.text.method.LinkMovementMethod;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;

import com.automattic.simplenote.utils.BrowserUtils;
import com.automattic.simplenote.utils.HtmlCompat;
import com.automattic.simplenote.utils.PrefUtils;
import com.automattic.simplenote.utils.ThemeUtils;
import com.automattic.simplenote.widgets.SpinningImageButton;
import com.automattic.simplenote.widgets.SpinningImageButton.SpeedListener;

import java.util.Calendar;
import java.util.Locale;
import java.util.Objects;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.StringRes;
import androidx.appcompat.app.AlertDialog;
import androidx.core.content.ContextCompat;
import androidx.fragment.app.Fragment;

public class AboutFragment extends Fragment implements SpeedListener {
    private static final String PLAY_STORE_URL = "http://play.google.com/store/apps/details?id=";
    private static final String PLAY_STORE_URI = "market://details?id=";
    private static final String SIMPLENOTE_BLOG_URL = "https://simplenote.com/blog";
    private static final String SIMPLENOTE_HELP_URL = "https://simplenote.com/help";
    private static final String SIMPLENOTE_HIRING_HANDLE = "https://automattic.com/work-with-us/";
    private static final String SIMPLENOTE_TWITTER_HANDLE = "simplenoteapp";
    private static final String TWITTER_PROFILE_URL = "https://twitter.com/#!/";
    private static final String TWITTER_APP_URI = "twitter://user?screen_name=";
    private static final String URL_CALIFORNIA = "https://automattic.com/privacy/#california-consumer-privacy-act-ccpa";
    private static final String URL_CONTRIBUTE = "https://github.com/Automattic/simplenote-android";
    private static final String URL_PRIVACY = "https://automattic.com/privacy";
    private static final String URL_TERMS = "https://simplenote.com/terms";

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_about, container, false);
        return setupViews(view);
    }

    private View setupViews(View view) {
        setVersionAndCopyrightText(view);
        handleViewClicks(view);
        handleTextViewClicks(view);
        ((SpinningImageButton) view.findViewById(R.id.about_logo)).setSpeedListener(this);
        return view;
    }

    private void setVersionAndCopyrightText(View view) {
        TextView version = view.findViewById(R.id.about_version);
        version.setText(PrefUtils.versionInfo());

        TextView copyright = view.findViewById(R.id.about_copyright);
        int thisYear = Calendar.getInstance().get(Calendar.YEAR);
        copyright.setText(String.format(Locale.getDefault(), getString(R.string.about_copyright), thisYear));
    }

    private void handleViewClicks(View view) {
        ClickHandler.handleClick(view.findViewById(R.id.about_blog), v ->
                browseOrToastOnError(view.getContext(), SIMPLENOTE_BLOG_URL));

        ClickHandler.handleClick(view.findViewById(R.id.about_help), v ->
                browseOrToastOnError(view.getContext(), SIMPLENOTE_HELP_URL));

        ClickHandler.handleClick(view.findViewById(R.id.about_contribute), v ->
                browseOrToastOnError(view.getContext(), URL_CONTRIBUTE));

        ClickHandler.handleClick(view.findViewById(R.id.about_careers), v ->
                browseOrToastOnError(view.getContext(), SIMPLENOTE_HIRING_HANDLE));

        ClickHandler.handleClick(view.findViewById(R.id.about_twitter), v ->
                browseOrBrowseOnException(
                        TWITTER_APP_URI + SIMPLENOTE_TWITTER_HANDLE,
                        TWITTER_PROFILE_URL + SIMPLENOTE_TWITTER_HANDLE
                ));

        handleAboutStoreClick(view);
    }

    private void browseOrBrowseOnException(String url, String exceptionUrl) {
        try {
            BrowserUtils.launchBrowserOrShowError(requireContext(), url);
        } catch (Exception e) {
            BrowserUtils.launchBrowserOrShowError(requireContext(), exceptionUrl);
        }
    }

    private void browseOrToastOnError(Context context, String url) {
        browseOrToastOnError(context, url, R.string.no_browser_available);
    }

    private void browseOrToastOnError(Context context, String url, @StringRes int stringRes) {
        try {
            BrowserUtils.launchBrowserOrShowError(requireContext(), url);
        } catch (Exception e) {
            Toast.makeText(context, stringRes, Toast.LENGTH_LONG).show();
        }
    }

    private void handleAboutStoreClick(View view) {
        ClickHandler.handleClick(view.findViewById(R.id.about_store), v -> {
            String marketUrl = PLAY_STORE_URI + requireActivity().getPackageName();
            Intent goToMarket = createMarketIntent(marketUrl);

            try {
                launchOrDialogBrowserError(goToMarket, marketUrl);
            } catch (ActivityNotFoundException e) {
                BrowserUtils.launchBrowserOrShowError(requireContext(), marketUrl);
            }
        });
    }

    private void launchOrDialogBrowserError(Intent intent, String url) {
        if (BrowserUtils.isBrowserInstalled(requireContext())) {
            startActivity(intent);
        } else {
            BrowserUtils.showDialogErrorBrowser(requireContext(), url);
        }
    }

    @NonNull
    private Intent createMarketIntent(String url) {
        Intent goToMarket = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
        goToMarket.addFlags(
                Intent.FLAG_ACTIVITY_NO_HISTORY |
                        Intent.FLAG_ACTIVITY_NEW_DOCUMENT |
                        Intent.FLAG_ACTIVITY_MULTIPLE_TASK
        );
        return goToMarket;
    }

    private void handleTextViewClicks(View view) {
        String colorLink = Integer.toHexString(ContextCompat.getColor(requireContext(), R.color.blue_5) & 0xffffff);

        ClickHandler.handleClick(
                view.findViewById(R.id.about_privacy),
                Html.fromHtml(String.format(
                        getResources().getString(R.string.link_privacy),
                        "<u><span style=\"color:#",
                        colorLink,
                        "\">",
                        "</span></u>")),
                v -> browseOrToastOnError(view.getContext(), URL_PRIVACY)
        );

        ClickHandler.handleClick(
                view.findViewById(R.id.about_terms),
                Html.fromHtml(String.format(
                        getResources().getString(R.string.link_terms),
                        "<u><span style=\"color:#",
                        colorLink,
                        "\">",
                        "</span></u>")),
                v -> browseOrToastOnError(view.getContext(), URL_TERMS)
        );

        ClickHandler.handleClick(
                view.findViewById(R.id.about_california),
                Html.fromHtml(String.format(
                    getResources().getString(R.string.link_california),
                        "<u><span style=\"color:#",
                        colorLink,
                        "\">",
                        "</span></u>"
                )),
                v -> viewUriOrToastOnError(view.getContext(), new Intent(Intent.ACTION_VIEW, Uri.parse(URL_CALIFORNIA)))
        );
    }

    private void viewUriOrToastOnError(Context context, Intent intent) {
        try {
            startActivity(intent);
        } catch (Exception e) {
            Toast.makeText(context, R.string.no_browser_available, Toast.LENGTH_LONG).show();
        }
    }


    @Override
    public void OnMaximumSpeed() {
        String[] items = requireActivity().getResources().getStringArray(R.array.array_about);
        long index = System.currentTimeMillis() % items.length;
        final AlertDialog dialog = new AlertDialog.Builder(requireActivity())
            .setMessage(HtmlCompat.fromHtml(String.format(
                items[(int) index],
                "<span style=\"color:#",
                Integer.toHexString(
                    ThemeUtils.getColorFromAttribute(requireActivity(), R.attr.colorAccent) & 0xffffff
                ),
                "\">",
                "</span>"
            )))
            .show();
        final Handler handler  = new Handler();
        final Runnable runnable = () -> {
            if (dialog.isShowing()) {
                dialog.dismiss();
            }
        };

        dialog.setOnDismissListener(dialog1 -> handler.removeCallbacks(runnable));

        handler.postDelayed(runnable, items[(int) index].length() * 50L);
        ((TextView) Objects.requireNonNull(dialog.findViewById(android.R.id.message))).setMovementMethod(LinkMovementMethod.getInstance());
    }
}

interface ClickHandler {
    static void handleClick(@NonNull View view, View.OnClickListener listener) {
        view.setOnClickListener(listener);
    }

    static void handleClick(@NonNull TextView view, CharSequence text, View.OnClickListener listener) {
        view.setText(text);
        view.setOnClickListener(listener);
    }
}