--- /dev/null
+/*
+ * Copyright © 2016-2020 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.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
+ }
+}
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projects / PrivacyBrowserAndroid.git / blobdiff