com.stoutner.privacybrowser.CreateHomeScreenShortcut.java Source code

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Here is the source code for com.stoutner.privacybrowser.CreateHomeScreenShortcut.java

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/**
 * Copyright 2015 Soren Stoutner <soren@stoutner.com>.
 *
 * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
 *
 * Privacy Browser is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Privacy Browser is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Privacy Browser.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.stoutner.privacybrowser;

import android.app.Activity;
import android.app.Dialog;
import android.content.DialogInterface;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.DialogFragment;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatDialogFragment;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.EditText;

public class CreateHomeScreenShortcut extends AppCompatDialogFragment {
    // The public interface is used to send information back to the activity that called CreateHomeScreenShortcut.
    public interface CreateHomeScreenSchortcutListener {
        void onCreateHomeScreenShortcutCancel(DialogFragment dialog);

        void onCreateHomeScreenShortcutCreate(DialogFragment dialog);
    }

    private CreateHomeScreenSchortcutListener buttonListener;

    // Check to make sure that the activity that called CreateHomeScreenShortcut implements both listeners.
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            buttonListener = (CreateHomeScreenSchortcutListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString() + " must implement CreateHomeScreenShortcutListener.");
        }
    }

    // onCreateDialog requires @NonNull.
    @Override
    @NonNull
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Create a drawable version of the favorite icon.
        Drawable favoriteIconDrawable = new BitmapDrawable(getResources(), MainWebViewActivity.favoriteIcon);

        // Use AlertDialog.Builder to create the AlertDialog
        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(getActivity());
        LayoutInflater customDialogInflater = getActivity().getLayoutInflater();
        alertDialogBuilder.setTitle(R.string.shortcut_name);
        alertDialogBuilder.setIcon(favoriteIconDrawable);
        alertDialogBuilder.setView(customDialogInflater.inflate(R.layout.create_home_screen_shortcut_dialog, null));
        alertDialogBuilder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                buttonListener.onCreateHomeScreenShortcutCancel(CreateHomeScreenShortcut.this);
            }
        });
        alertDialogBuilder.setPositiveButton(R.string.create, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                buttonListener.onCreateHomeScreenShortcutCreate(CreateHomeScreenShortcut.this);
            }
        });

        // Assign the alertDialogBuilder to an AlertDialog.
        final AlertDialog alertDialog = alertDialogBuilder.create();

        // Show the keyboard when the dialog is displayed on the screen.
        alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);

        // We need to show alertDialog before we can setOnKeyListener below.
        alertDialog.show();

        EditText shortcutNameEditText = (EditText) alertDialog.findViewById(R.id.shortcutNameEditText);

        // 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 event on the "enter" button, select the PositiveButton "Create".
                if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
                    // Trigger the create listener.
                    buttonListener.onCreateHomeScreenShortcutCreate(CreateHomeScreenShortcut.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;
                }
            }
        });

        // onCreateDialog requires the return of an AlertDialog.
        return alertDialog;
    }
}