X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FCreateBookmarkFolderDialog.kt;fp=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FCreateBookmarkFolderDialog.kt;h=0cca2881aa461631d004c86ee5a0ade8d77eabc9;hp=0000000000000000000000000000000000000000;hb=9df712df3780161d77d10c6f3a2444bf8f218c99;hpb=f52255e6eeb1a6be9f190e733563cc37b5d1f2b5 diff --git a/app/src/main/java/com/stoutner/privacybrowser/dialogs/CreateBookmarkFolderDialog.kt b/app/src/main/java/com/stoutner/privacybrowser/dialogs/CreateBookmarkFolderDialog.kt new file mode 100644 index 00000000..0cca2881 --- /dev/null +++ b/app/src/main/java/com/stoutner/privacybrowser/dialogs/CreateBookmarkFolderDialog.kt @@ -0,0 +1,203 @@ +/* + * Copyright © 2016-2020 Soren Stoutner . + * + * This file is part of 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 . + */ +package com.stoutner.privacybrowser.dialogs + +import android.annotation.SuppressLint +import android.app.AlertDialog +import android.app.Dialog +import android.content.Context +import android.content.DialogInterface +import android.graphics.Bitmap +import android.graphics.BitmapFactory +import android.os.Bundle +import android.text.Editable +import android.text.TextWatcher +import android.view.KeyEvent +import android.view.View +import android.view.WindowManager +import android.widget.EditText +import android.widget.ImageView + +import androidx.fragment.app.DialogFragment +import androidx.preference.PreferenceManager + +import com.stoutner.privacybrowser.R +import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper + +import java.io.ByteArrayOutputStream + +class CreateBookmarkFolderDialog: DialogFragment() { + // The public interface is used to send information back to the parent activity. + interface CreateBookmarkFolderListener { + fun onCreateBookmarkFolder(dialogFragment: DialogFragment, favoriteIconBitmap: Bitmap) + } + + // The create bookmark folder listener is initialized in `onAttach()` and used in `onCreateDialog()`. + private lateinit var createBookmarkFolderListener: CreateBookmarkFolderListener + + override fun onAttach(context: Context) { + // Run the default commands. + super.onAttach(context) + + // Get a handle for the create bookmark folder listener from the launching context. + createBookmarkFolderListener = context as CreateBookmarkFolderListener + } + + companion object { + // `@JvmStatic` will no longer be required once all the code has transitioned to Kotlin. Also, the function can then be moved out of a companion object and just become a package-level function. + @JvmStatic + fun createBookmarkFolder(favoriteIconBitmap: Bitmap): CreateBookmarkFolderDialog { + // Create a favorite icon byte array output stream. + val favoriteIconByteArrayOutputStream = 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. + val favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray() + + // Create an arguments bundle. + val argumentsBundle = Bundle() + + // Store the favorite icon in the bundle. + argumentsBundle.putByteArray("favorite_icon_byte_array", favoriteIconByteArray) + + // Create a new instance of the dialog. + val createBookmarkFolderDialog = CreateBookmarkFolderDialog() + + // Add the bundle to the dialog. + createBookmarkFolderDialog.arguments = argumentsBundle + + // Return the new dialog. + return createBookmarkFolderDialog + } + } + + // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the alert dialog. + @SuppressLint("InflateParams") + override fun onCreateDialog(savedInstanceState: Bundle?): Dialog { + // Get the arguments. + val arguments = arguments!! + + // Get the favorite icon byte array. + val favoriteIconByteArray = arguments.getByteArray("favorite_icon_byte_array")!! + + // Convert the favorite icon byte array to a bitmap. + val favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.size) + + // Get a handle for the shared preferences. + val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context) + + // Get the screenshot and theme preferences. + val allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false) + val darkTheme = sharedPreferences.getBoolean("dark_theme", false) + + // Use an alert dialog builder to create the dialog and set the style according to the theme. + val dialogBuilder = if (darkTheme) { + AlertDialog.Builder(context, R.style.PrivacyBrowserAlertDialogDark) + } else { + AlertDialog.Builder(context, R.style.PrivacyBrowserAlertDialogLight) + } + + // Set the title. + dialogBuilder.setTitle(R.string.create_folder) + + // Set the view. The parent view is null because it will be assigned by the alert dialog. + dialogBuilder.setView(activity!!.layoutInflater.inflate(R.layout.create_bookmark_folder_dialog, null)) + + // Set a listener on the cancel button. Using `null` as the listener closes the dialog without doing anything else. + dialogBuilder.setNegativeButton(R.string.cancel, null) + + // Set a listener on the create button. + dialogBuilder.setPositiveButton(R.string.create) { _: DialogInterface, _: Int -> + // Return the dialog fragment to the parent activity on create. + createBookmarkFolderListener.onCreateBookmarkFolder(this, favoriteIconBitmap) + } + + // Create an alert dialog from the builder. + val alertDialog = dialogBuilder.create() + + // Disable screenshots if not allowed. + if (!allowScreenshots) { + alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE) + } + + // Display the keyboard. + alertDialog.window!!.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE) + + // The alert dialog must be shown before the content can be modified. + alertDialog.show() + + // Get handles for the views in the dialog. + val webPageIconImageView: ImageView = alertDialog.findViewById(R.id.create_folder_web_page_icon) + val folderNameEditText: EditText = alertDialog.findViewById(R.id.create_folder_name_edittext) + val createButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE) + + // Display the current favorite icon. + webPageIconImageView.setImageBitmap(favoriteIconBitmap) + + // Initially disable the create button. + createButton.isEnabled = false + + // Initialize the database helper. The `0` specifies a database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`. + val bookmarksDatabaseHelper = BookmarksDatabaseHelper(context, null, null, 0) + + // Enable the create button if the new folder name is unique. + folderNameEditText.addTextChangedListener(object: TextWatcher { + override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) { + // Do nothing. + } + + override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) { + // Do nothing. + } + + override fun afterTextChanged(editable: Editable) { + // Convert the current text to a string. + val folderName = editable.toString() + + // Check if a folder with the name already exists. + val folderExistsCursor = bookmarksDatabaseHelper.getFolder(folderName) + + // Enable the create button if the new folder name is not empty and doesn't already exist. + createButton.isEnabled = folderName.isNotEmpty() && (folderExistsCursor.count == 0) + } + }) + + // Set the enter key on the keyboard to create the folder from the edit text. + folderNameEditText.setOnKeyListener { _: View?, keyCode: Int, keyEvent: KeyEvent -> + // Check the key code, event, and button status. + if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && createButton.isEnabled) { // The event is a key-down on the enter key and the create button is enabled. + // Trigger the create bookmark folder listener and return the dialog fragment to the parent activity. + createBookmarkFolderListener.onCreateBookmarkFolder(this, favoriteIconBitmap) + + // Manually dismiss the alert dialog. + alertDialog.dismiss() + + // Consume the event. + return@setOnKeyListener true + } else { // Some other key was pressed or the create button is disabled. + return@setOnKeyListener false + } + } + + // Return the alert dialog. + return alertDialog + } +} \ No newline at end of file