--- /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.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.Button
+import android.widget.EditText
+import android.widget.ImageView
+import android.widget.RadioButton
+import android.widget.RadioGroup
+
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.DialogFragment
+import androidx.preference.PreferenceManager
+
+import com.stoutner.privacybrowser.R
+import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper
+
+import java.io.ByteArrayOutputStream
+
+// Declare the class constants.
+private const val DATABASE_ID = "database_id"
+private const val FAVORITE_ICON_BYTE_ARRAY = "favorite_icon_byte_array"
+
+class EditBookmarkDialog: DialogFragment() {
+ // The public interface is used to send information back to the parent activity.
+ interface EditBookmarkListener {
+ fun onSaveBookmark(dialogFragment: DialogFragment, selectedBookmarkDatabaseId: Int, favoriteIconBitmap: Bitmap)
+ }
+
+ // Declare the class variables.
+ private lateinit var editBookmarkListener: EditBookmarkListener
+
+ // Declare the class views.
+ private lateinit var nameEditText: EditText
+ private lateinit var urlEditText: EditText
+ private lateinit var newIconRadioButton: RadioButton
+ private lateinit var saveButton: Button
+
+ override fun onAttach(context: Context) {
+ // Run the default commands.
+ super.onAttach(context)
+
+ // Get a handle for the edit bookmark listener from the launching context.
+ editBookmarkListener = context as EditBookmarkListener
+ }
+
+ 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 bookmarkDatabaseId(databaseId: Int, favoriteIconBitmap: Bitmap): EditBookmarkDialog {
+ // 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 variables in the bundle.
+ argumentsBundle.putInt(DATABASE_ID, databaseId)
+ argumentsBundle.putByteArray(FAVORITE_ICON_BYTE_ARRAY, favoriteIconByteArray)
+
+ // Create a new instance of the dialog.
+ val editBookmarkDialog = EditBookmarkDialog()
+
+ // Add the arguments bundle to the dialog.
+ editBookmarkDialog.arguments = argumentsBundle
+
+ // Return the new dialog.
+ return editBookmarkDialog
+ }
+ }
+
+ // `@SuppressLint("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 = requireArguments()
+
+ // Get the variables from the arguments.
+ val selectedBookmarkDatabaseId = arguments.getInt(DATABASE_ID)
+ 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)
+
+ // Initialize the bookmarks 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)
+
+ // Get a cursor with the selected bookmark.
+ val bookmarkCursor = bookmarksDatabaseHelper.getBookmark(selectedBookmarkDatabaseId)
+
+ // Move the cursor to the first position.
+ bookmarkCursor.moveToFirst()
+
+ // Use an alert dialog builder to create the alert dialog.
+ val dialogBuilder = AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog)
+
+ // Set the title.
+ dialogBuilder.setTitle(R.string.edit_bookmark)
+
+ // Set the view. The parent view is null because it will be assigned by the alert dialog.
+ dialogBuilder.setView(requireActivity().layoutInflater.inflate(R.layout.edit_bookmark_dialog, null))
+
+ // Set the cancel button listener. Using `null` as the listener closes the dialog without doing anything else.
+ dialogBuilder.setNegativeButton(R.string.cancel, null)
+
+ // Set the save button listener.
+ dialogBuilder.setPositiveButton(R.string.save) { _: DialogInterface?, _: Int ->
+ // Return the dialog fragment to the parent activity.
+ editBookmarkListener.onSaveBookmark(this, selectedBookmarkDatabaseId, favoriteIconBitmap)
+ }
+
+ // Create an alert dialog from the builder.
+ val alertDialog = dialogBuilder.create()
+
+ // Get a handle for the shared preferences.
+ val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
+
+ // Get the screenshot preference.
+ val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false)
+
+ // Disable screenshots if not allowed.
+ if (!allowScreenshots) {
+ alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
+ }
+
+ // The alert dialog must be shown before items in the layout can be modified.
+ alertDialog.show()
+
+ // Get handles for the layout items.
+ val iconRadioGroup = alertDialog.findViewById<RadioGroup>(R.id.edit_bookmark_icon_radiogroup)!!
+ val currentIconImageView = alertDialog.findViewById<ImageView>(R.id.edit_bookmark_current_icon)!!
+ val newFavoriteIconImageView = alertDialog.findViewById<ImageView>(R.id.edit_bookmark_webpage_favorite_icon)!!
+ newIconRadioButton = alertDialog.findViewById(R.id.edit_bookmark_webpage_favorite_icon_radiobutton)!!
+ nameEditText = alertDialog.findViewById(R.id.edit_bookmark_name_edittext)!!
+ urlEditText = alertDialog.findViewById(R.id.edit_bookmark_url_edittext)!!
+ saveButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE)
+
+ // Get the current favorite icon byte array from the cursor.
+ val currentIconByteArray = bookmarkCursor.getBlob(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON))
+
+ // Convert the byte array to a bitmap beginning at the first byte and ending at the last.
+ val currentIconBitmap = BitmapFactory.decodeByteArray(currentIconByteArray, 0, currentIconByteArray.size)
+
+ // Display the current icon bitmap.
+ currentIconImageView.setImageBitmap(currentIconBitmap)
+
+ // Set the new favorite icon bitmap.
+ newFavoriteIconImageView.setImageBitmap(favoriteIconBitmap)
+
+ // Store the current bookmark name and URL.
+ val currentName = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME))
+ val currentUrl = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL))
+
+ // Populate the edit texts.
+ nameEditText.setText(currentName)
+ urlEditText.setText(currentUrl)
+
+ // Initially disable the save button.
+ saveButton.isEnabled = false
+
+ // Update the save button if the icon selection changes.
+ iconRadioGroup.setOnCheckedChangeListener { _: RadioGroup?, _: Int ->
+ // Update the save button.
+ updateSaveButton(currentName, currentUrl)
+ }
+
+ // Update the save button if the bookmark name changes.
+ nameEditText.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(s: Editable) {
+ // Update the save button.
+ updateSaveButton(currentName, currentUrl)
+ }
+ })
+
+ // Update the save button if the URL changes.
+ urlEditText.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(s: Editable) {
+ // Update the edit button.
+ updateSaveButton(currentName, currentUrl)
+ }
+ })
+
+ // Allow the enter key on the keyboard to save the bookmark from the bookmark name edit text.
+ nameEditText.setOnKeyListener { _: View?, keyCode: Int, event: KeyEvent ->
+ // Check the key code, event, and button status.
+ if (event.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && saveButton.isEnabled) { // The enter key was pressed and the save button is enabled.
+ // Trigger the listener and return the dialog fragment to the parent activity.
+ editBookmarkListener.onSaveBookmark(this, selectedBookmarkDatabaseId, favoriteIconBitmap)
+
+ // Manually dismiss the alert dialog.
+ alertDialog.dismiss()
+
+ // Consume the event.
+ return@setOnKeyListener true
+ } else { // If any other key was pressed, or if the save button is currently disabled, do not consume the event.
+ return@setOnKeyListener false
+ }
+ }
+
+ // Allow the enter key on the keyboard to save the bookmark from the URL edit text.
+ urlEditText.setOnKeyListener { _: View?, keyCode: Int, event: KeyEvent ->
+ // Check the key code, event, and button status.
+ if (event.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && saveButton.isEnabled) { // The enter key was pressed and the save button is enabled.
+ // Trigger the listener and return the dialog fragment to the parent activity.
+ editBookmarkListener.onSaveBookmark(this, selectedBookmarkDatabaseId, favoriteIconBitmap)
+
+ // Manually dismiss the alert dialog.
+ alertDialog.dismiss()
+
+ // Consume the event.
+ return@setOnKeyListener true
+ } else { // If any other key was pressed, or if the save button is currently disabled, do not consume the event.
+ return@setOnKeyListener false
+ }
+ }
+
+ // Return the alert dialog.
+ return alertDialog
+ }
+
+ private fun updateSaveButton(currentName: String, currentUrl: String) {
+ // Get the text from the edit texts.
+ val newName = nameEditText.text.toString()
+ val newUrl = urlEditText.text.toString()
+
+ // Has the favorite icon changed?
+ val iconChanged = newIconRadioButton.isChecked
+
+ // Has the name changed?
+ val nameChanged = newName != currentName
+
+ // Has the URL changed?
+ val urlChanged = newUrl != currentUrl
+
+ // Update the enabled status of the save button.
+ saveButton.isEnabled = iconChanged || nameChanged || urlChanged
+ }
+}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff