--- /dev/null
+/*
+ * Copyright 2016-2023 Soren Stoutner <soren@stoutner.com>.
+ *
+ * This file is part of Privacy Browser Android <https://www.stoutner.com/privacy-browser-android>.
+ *
+ * Privacy Browser Android 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 Android 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 Android. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.stoutner.privacybrowser.activities
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.content.Intent
+import android.database.Cursor
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.graphics.Typeface
+import android.graphics.drawable.BitmapDrawable
+import android.os.Bundle
+import android.util.SparseBooleanArray
+import android.view.ActionMode
+import android.view.Menu
+import android.view.MenuItem
+import android.view.View
+import android.view.ViewGroup
+import android.view.Window
+import android.view.WindowManager
+import android.widget.AbsListView.MultiChoiceModeListener
+import android.widget.AdapterView
+import android.widget.EditText
+import android.widget.ImageView
+import android.widget.ListView
+import android.widget.RadioButton
+import android.widget.TextView
+
+import androidx.activity.OnBackPressedCallback
+import androidx.appcompat.app.ActionBar
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.widget.Toolbar
+import androidx.cursoradapter.widget.CursorAdapter
+import androidx.fragment.app.DialogFragment
+import androidx.preference.PreferenceManager
+
+import com.google.android.material.floatingactionbutton.FloatingActionButton
+import com.google.android.material.snackbar.Snackbar
+
+import com.stoutner.privacybrowser.R
+import com.stoutner.privacybrowser.dialogs.CreateBookmarkDialog.Companion.createBookmark
+import com.stoutner.privacybrowser.dialogs.CreateBookmarkDialog.CreateBookmarkListener
+import com.stoutner.privacybrowser.dialogs.CreateBookmarkFolderDialog.Companion.createBookmarkFolder
+import com.stoutner.privacybrowser.dialogs.CreateBookmarkFolderDialog.CreateBookmarkFolderListener
+import com.stoutner.privacybrowser.dialogs.EditBookmarkDialog.Companion.bookmarkDatabaseId
+import com.stoutner.privacybrowser.dialogs.EditBookmarkDialog.EditBookmarkListener
+import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDialog.Companion.folderDatabaseId
+import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDialog.EditBookmarkFolderListener
+import com.stoutner.privacybrowser.dialogs.MoveToFolderDialog.Companion.moveBookmarks
+import com.stoutner.privacybrowser.dialogs.MoveToFolderDialog.MoveToFolderListener
+import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper
+
+import java.io.ByteArrayOutputStream
+import java.util.function.Consumer
+
+// Define the public constants.
+const val CURRENT_FOLDER = "current_folder"
+const val CURRENT_TITLE = "current_title"
+const val CURRENT_FAVORITE_ICON_BYTE_ARRAY = "current_favorite_icon_byte_array"
+
+// Define the private constants.
+private const val CHECKED_BOOKMARKS_ARRAY_LIST = "checked_bookmarks_array_list"
+
+class BookmarksActivity : AppCompatActivity(), CreateBookmarkListener, CreateBookmarkFolderListener, EditBookmarkListener, EditBookmarkFolderListener, MoveToFolderListener {
+ companion object {
+ // Define the public static variables, which are accessed from the bookmarks database view activity.
+ var currentFolder: String = ""
+ var restartFromBookmarksDatabaseViewActivity = false
+ }
+
+ // Define the class variables.
+ private var bookmarksDeletedSnackbar: Snackbar? = null
+ private var closeActivityAfterDismissingSnackbar = false
+ private var contextualActionMode: ActionMode? = null
+
+ // Declare the class variables.
+ private lateinit var appBar: ActionBar
+ private lateinit var bookmarksCursor: Cursor
+ private lateinit var bookmarksCursorAdapter: CursorAdapter
+ private lateinit var bookmarksDatabaseHelper: BookmarksDatabaseHelper
+ private lateinit var bookmarksListView: ListView
+ private lateinit var currentFavoriteIconByteArray: ByteArray
+ private lateinit var moveBookmarkDownMenuItem: MenuItem
+ private lateinit var moveBookmarkUpMenuItem: MenuItem
+ private lateinit var oldFolderNameString: String
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ // Get a handle for the shared preferences.
+ val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this)
+
+ // Get the preferences.
+ val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false)
+ val bottomAppBar = sharedPreferences.getBoolean(getString(R.string.bottom_app_bar_key), false)
+
+ // Disable screenshots if not allowed.
+ if (!allowScreenshots) {
+ window.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
+ }
+
+ // Run the default commands.
+ super.onCreate(savedInstanceState)
+
+ // Get the intent that launched the activity.
+ val launchingIntent = intent
+
+ // Populate the variables from the launching intent.
+ currentFolder = launchingIntent.getStringExtra(CURRENT_FOLDER)!!
+ val currentTitle = launchingIntent.getStringExtra(CURRENT_TITLE)!!
+ val currentUrl = launchingIntent.getStringExtra(CURRENT_URL)!!
+ currentFavoriteIconByteArray = launchingIntent.getByteArrayExtra(CURRENT_FAVORITE_ICON_BYTE_ARRAY)!!
+
+ /* TODO. Test if not needed.
+ // Set the current folder variable.
+ if (launchingIntent.getStringExtra(CURRENT_FOLDER) != null) { // Set the current folder from the intent.
+ currentFolder = launchingIntent.getStringExtra(CURRENT_FOLDER)
+ } else { // Set the current folder to be `""`, which is the home folder.
+ currentFolder = ""
+ }
+
+ */
+
+ // Convert the favorite icon byte array to a bitmap.
+ val currentFavoriteIconBitmap = BitmapFactory.decodeByteArray(currentFavoriteIconByteArray, 0, currentFavoriteIconByteArray.size)
+
+ // Set the content according to the app bar position.
+ if (bottomAppBar) {
+ // Set the content view.
+ setContentView(R.layout.bookmarks_bottom_appbar)
+ } else {
+ // `Window.FEATURE_ACTION_MODE_OVERLAY` makes the contextual action mode cover the support action bar. It must be requested before the content is set.
+ supportRequestWindowFeature(Window.FEATURE_ACTION_MODE_OVERLAY)
+
+ // Set the content view.
+ setContentView(R.layout.bookmarks_top_appbar)
+ }
+
+ // Get handles for the views.
+ val toolbar = findViewById<Toolbar>(R.id.bookmarks_toolbar)
+ bookmarksListView = findViewById(R.id.bookmarks_listview)
+ val createBookmarkFolderFab = findViewById<FloatingActionButton>(R.id.create_bookmark_folder_fab)
+ val createBookmarkFab = findViewById<FloatingActionButton>(R.id.create_bookmark_fab)
+
+ // Set the support action bar.
+ setSupportActionBar(toolbar)
+
+ // Get a handle for the app bar.
+ appBar = supportActionBar!!
+
+ // Display the home arrow on the app bar.
+ appBar.setDisplayHomeAsUpEnabled(true)
+
+ // Control what the system back command does.
+ val onBackPressedCallback: OnBackPressedCallback = object : OnBackPressedCallback(true) {
+ override fun handleOnBackPressed() {
+ // Prepare to finish the activity.
+ prepareFinish()
+ }
+ }
+
+ // Register the on back pressed callback.
+ onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
+
+ // Initialize the database helper.
+ bookmarksDatabaseHelper = BookmarksDatabaseHelper(this)
+
+ // Set a listener so that tapping a list item loads the URL or folder.
+ bookmarksListView.onItemClickListener = AdapterView.OnItemClickListener { _: AdapterView<*>?, _: View?, _: Int, id: Long ->
+ // Convert the id from long to int to match the format of the bookmarks database.
+ val databaseId = id.toInt()
+
+ // Get the bookmark cursor for this ID.
+ val bookmarkCursor = bookmarksDatabaseHelper.getBookmark(databaseId)
+
+ // Move the cursor to the first entry.
+ bookmarkCursor.moveToFirst()
+
+ // Act upon the bookmark according to the type.
+ if (bookmarkCursor.getInt(bookmarkCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.IS_FOLDER)) == 1) { // The selected bookmark is a folder.
+ // Update the current folder.
+ currentFolder = bookmarkCursor.getString(bookmarkCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME))
+
+ // Load the new folder.
+ loadFolder()
+ } else { // The selected bookmark is not a folder.
+ // Instantiate the edit bookmark dialog.
+ val editBookmarkDialog: DialogFragment = bookmarkDatabaseId(databaseId, currentFavoriteIconBitmap)
+
+ // Make it so.
+ editBookmarkDialog.show(supportFragmentManager, resources.getString(R.string.edit_bookmark))
+ }
+
+ // Close the cursor.
+ bookmarkCursor.close()
+ }
+
+ // Handle long-presses on the list view.
+ bookmarksListView.setMultiChoiceModeListener(object : MultiChoiceModeListener {
+ // Define the object variables.
+ private var deletingBookmarks = false
+
+ // Declare the object variables.
+ private lateinit var editBookmarkMenuItem: MenuItem
+ private lateinit var deleteBookmarksMenuItem: MenuItem
+ private lateinit var selectAllBookmarksMenuItem: MenuItem
+
+ override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
+ // Inflate the menu for the contextual app bar.
+ menuInflater.inflate(R.menu.bookmarks_context_menu, menu)
+
+ // Set the title.
+ if (currentFolder.isEmpty()) { // Use `R.string.bookmarks` if in the home folder.
+ mode.setTitle(R.string.bookmarks)
+ } else { // Use the current folder name as the title.
+ mode.title = currentFolder
+ }
+
+ // Get handles for menu items that need to be selectively disabled.
+ moveBookmarkUpMenuItem = menu.findItem(R.id.move_bookmark_up)
+ moveBookmarkDownMenuItem = menu.findItem(R.id.move_bookmark_down)
+ editBookmarkMenuItem = menu.findItem(R.id.edit_bookmark)
+ deleteBookmarksMenuItem = menu.findItem(R.id.delete_bookmark)
+ selectAllBookmarksMenuItem = menu.findItem(R.id.context_menu_select_all_bookmarks)
+
+ // Disable the delete bookmarks menu item if a delete is pending.
+ deleteBookmarksMenuItem.isEnabled = !deletingBookmarks
+
+ // Store a handle for the contextual action bar so it can be closed programatically.
+ contextualActionMode = mode
+
+ // Make it so.
+ return true
+ }
+
+ override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
+ // Get a handle for the move to folder menu item.
+ val moveToFolderMenuItem = menu.findItem(R.id.move_to_folder)
+
+ // Get a Cursor with all of the folders.
+ val folderCursor = bookmarksDatabaseHelper.allFolders
+
+ // Display the move to folder menu item if at least one folder exists.
+ moveToFolderMenuItem.isVisible = folderCursor.count > 0
+
+ // Make it so.
+ return true
+ }
+
+ override fun onItemCheckedStateChanged(mode: ActionMode, position: Int, id: Long, checked: Boolean) {
+ // Get the number of selected bookmarks.
+ val numberOfSelectedBookmarks = bookmarksListView.checkedItemCount
+
+ // Only process commands if at least one bookmark is selected. Otherwise, a context menu with 0 selected bookmarks is briefly displayed.
+ if (numberOfSelectedBookmarks > 0) {
+ // Adjust the action mode and the menu according to the number of selected bookmarks.
+ if (numberOfSelectedBookmarks == 1) { // One bookmark is selected.
+ // Show the applicable menu items.
+ moveBookmarkUpMenuItem.isVisible = true
+ moveBookmarkDownMenuItem.isVisible = true
+ editBookmarkMenuItem.isVisible = true
+
+ // Update the enabled status of the move icons.
+ updateMoveIcons()
+ } else { // More than one bookmark is selected.
+ // Hide non-applicable `MenuItems`.
+ moveBookmarkUpMenuItem.isVisible = false
+ moveBookmarkDownMenuItem.isVisible = false
+ editBookmarkMenuItem.isVisible = false
+ }
+
+ // List the number of selected bookmarks in the subtitle.
+ mode.subtitle = getString(R.string.selected, numberOfSelectedBookmarks)
+
+ // Show the select all menu item if all the bookmarks are not selected.
+ selectAllBookmarksMenuItem.isVisible = (numberOfSelectedBookmarks != bookmarksListView.count)
+ }
+ }
+
+ override fun onActionItemClicked(actionMode: ActionMode, menuItem: MenuItem): Boolean {
+ // Declare the variables.
+ val selectedBookmarkNewPosition: Int
+ val selectedBookmarksPositionsSparseBooleanArray: SparseBooleanArray
+
+ // Initialize the selected bookmark position.
+ var selectedBookmarkPosition = 0
+
+ // Get the menu item ID.
+ val menuItemId = menuItem.itemId
+
+ // Run the commands according to the selected action item.
+ if (menuItemId == R.id.move_bookmark_up) { // Move the bookmark up.
+ // Get the array of checked bookmark positions.
+ selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.checkedItemPositions
+
+ // Get the position of the bookmark that is selected. If other bookmarks have previously been selected they will be included in the sparse boolean array with a value of `false`.
+ for (i in 0 until selectedBookmarksPositionsSparseBooleanArray.size()) {
+ // Check to see if the value for the bookmark is true, meaning it is currently selected.
+ if (selectedBookmarksPositionsSparseBooleanArray.valueAt(i)) {
+ // Only one bookmark should have a value of `true` when move bookmark up is enabled.
+ selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(i)
+ }
+ }
+
+ // Calculate the new position of the selected bookmark.
+ selectedBookmarkNewPosition = selectedBookmarkPosition - 1
+
+ // Iterate through the bookmarks.
+ for (i in 0 until bookmarksListView.count) {
+ // Get the database ID for the current bookmark.
+ val currentBookmarkDatabaseId = bookmarksListView.getItemIdAtPosition(i).toInt()
+
+ // Update the display order for the current bookmark.
+ if (i == selectedBookmarkPosition) { // The current bookmark is the selected bookmark.
+ // Move the current bookmark up one.
+ bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1)
+ } else if ((i + 1) == selectedBookmarkPosition) { // The current bookmark is immediately above the selected bookmark.
+ // Move the current bookmark down one.
+ bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1)
+ } else { // The current bookmark is not changing positions.
+ // Move the bookmarks cursor to the current bookmark position.
+ bookmarksCursor.moveToPosition(i)
+
+ // Update the display order only if it is not correct in the database. This fixes problems where the display order somehow got out of sync.
+ if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i)
+ bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i)
+ }
+ }
+
+ // Update the bookmarks cursor with the current contents of the bookmarks database.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder)
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor)
+
+ // Scroll to the new bookmark position.
+ scrollBookmarks(selectedBookmarkNewPosition)
+
+ // Update the enabled status of the move icons.
+ updateMoveIcons()
+ } else if (menuItemId == R.id.move_bookmark_down) { // Move the bookmark down.
+ // Get the array of checked bookmark positions.
+ selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.checkedItemPositions
+
+ // Get the position of the bookmark that is selected. If other bookmarks have previously been selected they will be included in the sparse boolean array with a value of `false`.
+ for (i in 0 until selectedBookmarksPositionsSparseBooleanArray.size()) {
+ // Check to see if the value for the bookmark is true, meaning it is currently selected.
+ if (selectedBookmarksPositionsSparseBooleanArray.valueAt(i)) {
+ // Only one bookmark should have a value of `true` when move bookmark down is enabled.
+ selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(i)
+ }
+ }
+
+ // Calculate the new position of the selected bookmark.
+ selectedBookmarkNewPosition = selectedBookmarkPosition + 1
+
+ // Iterate through the bookmarks.
+ for (i in 0 until bookmarksListView.count) {
+ // Get the database ID for the current bookmark.
+ val currentBookmarkDatabaseId = bookmarksListView.getItemIdAtPosition(i).toInt()
+
+ // Update the display order for the current bookmark.
+ if (i == selectedBookmarkPosition) { // The current bookmark is the selected bookmark.
+ // Move the current bookmark down one.
+ bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1)
+ } else if (i - 1 == selectedBookmarkPosition) { // The current bookmark is immediately below the selected bookmark.
+ // Move the bookmark below the selected bookmark up one.
+ bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1)
+ } else { // The current bookmark is not changing positions.
+ // Move the bookmarks cursor to the current bookmark position.
+ bookmarksCursor.moveToPosition(i)
+
+ // Update the display order only if it is not correct in the database. This fixes problems where the display order somehow got out of sync.
+ if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
+ bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i)
+ }
+ }
+ }
+
+ // Update the bookmarks cursor with the current contents of the bookmarks database.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder)
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor)
+
+ // Scroll to the new bookmark position.
+ scrollBookmarks(selectedBookmarkNewPosition)
+
+ // Update the enabled status of the move icons.
+ updateMoveIcons()
+ } else if (menuItemId == R.id.move_to_folder) { // Move to folder.
+ // Instantiate the move to folder alert dialog.
+ val moveToFolderDialog: DialogFragment = moveBookmarks(currentFolder, bookmarksListView.checkedItemIds)
+
+ // Show the move to folder alert dialog.
+ moveToFolderDialog.show(supportFragmentManager, resources.getString(R.string.move_to_folder))
+ } else if (menuItemId == R.id.edit_bookmark) {
+ // Get the array of checked bookmark positions.
+ selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.checkedItemPositions
+
+ // Get the position of the bookmark that is selected. If other bookmarks have previously been selected they will be included in the sparse boolean array with a value of `false`.
+ for (i in 0 until selectedBookmarksPositionsSparseBooleanArray.size()) {
+ // Check to see if the value for the bookmark is true, meaning it is currently selected.
+ if (selectedBookmarksPositionsSparseBooleanArray.valueAt(i)) {
+ // Only one bookmark should have a value of `true` when move edit bookmark is enabled.
+ selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(i)
+ }
+ }
+
+ // Move the cursor to the selected position.
+ bookmarksCursor.moveToPosition(selectedBookmarkPosition)
+
+ // Get the selected bookmark database ID.
+ val databaseId = bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID))
+
+ // Show the edit bookmark or edit bookmark folder dialog.
+ if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.IS_FOLDER)) == 1) { // A folder is selected.
+ // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
+ oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME))
+
+ // Instantiate the edit bookmark folder dialog.
+ val editFolderDialog: DialogFragment = folderDatabaseId(databaseId, currentFavoriteIconBitmap)
+
+ // Make it so.
+ editFolderDialog.show(supportFragmentManager, resources.getString(R.string.edit_folder))
+ } else { // A bookmark is selected.
+ // Instantiate the edit bookmark dialog.
+ val editBookmarkDialog: DialogFragment = bookmarkDatabaseId(databaseId, currentFavoriteIconBitmap)
+
+ // Make it so.
+ editBookmarkDialog.show(supportFragmentManager, resources.getString(R.string.edit_bookmark))
+ }
+ } else if (menuItemId == R.id.delete_bookmark) { // Delete bookmark.
+ // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes.
+ deletingBookmarks = true
+
+ // Get an array of the selected row IDs.
+ val selectedBookmarksIdsLongArray = bookmarksListView.checkedItemIds
+
+ // Initialize a variable to count the number of bookmarks to delete.
+ var numberOfBookmarksToDelete = 0
+
+ // Count the number of bookmarks to delete.
+ for (databaseIdLong in selectedBookmarksIdsLongArray) {
+ // Convert the database ID long to an int.
+ val databaseIdInt = databaseIdLong.toInt()
+
+ // Count the contents of the folder if the selected bookmark is a folder.
+ if (bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
+ // Add the bookmarks from the folder to the running total.
+ numberOfBookmarksToDelete += countBookmarkFolderContents(databaseIdInt)
+ }
+
+ // Increment the count of the number of bookmarks to delete.
+ numberOfBookmarksToDelete++
+ }
+
+ // Get an array of checked bookmarks. `.clone()` makes a copy that won't change if the list view is reloaded, which is needed for re-selecting the bookmarks on undelete.
+ selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.checkedItemPositions.clone()
+
+ // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolder)
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor)
+
+ // Create a Snackbar with the number of deleted bookmarks.
+ bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_coordinatorlayout), getString(R.string.bookmarks_deleted, numberOfBookmarksToDelete), Snackbar.LENGTH_LONG)
+ .setAction(R.string.undo) { } // Do nothing because everything will be handled by `onDismissed()` below.
+ .addCallback(object : Snackbar.Callback() {
+ @SuppressLint("SwitchIntDef") // Ignore the lint warning about not handling the other possible events as they are covered by `default:`.
+ override fun onDismissed(snackbar: Snackbar, event: Int) {
+ if (event == DISMISS_EVENT_ACTION) { // The user pushed the undo button.
+ // Update the bookmarks cursor with the current contents of the bookmarks database, including the "deleted" bookmarks.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder)
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor)
+
+ // Re-select the previously selected bookmarks.
+ for (i in 0 until selectedBookmarksPositionsSparseBooleanArray.size())
+ bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true)
+ } else { // The snackbar was dismissed without the undo button being pushed.
+ // Delete each selected bookmark.
+ for (databaseIdLong in selectedBookmarksIdsLongArray) {
+ // Convert the database long ID to an int.
+ val databaseIdInt = databaseIdLong.toInt()
+
+ // Delete the contents of the folder if the selected bookmark is a folder.
+ if (bookmarksDatabaseHelper.isFolder(databaseIdInt))
+ deleteBookmarkFolderContents(databaseIdInt)
+
+ // Delete the selected bookmark.
+ bookmarksDatabaseHelper.deleteBookmark(databaseIdInt)
+ }
+
+ // Update the display order.
+ for (i in 0 until bookmarksListView.count) {
+ // Get the database ID for the current bookmark.
+ val currentBookmarkDatabaseId = bookmarksListView.getItemIdAtPosition(i).toInt()
+
+ // Move bookmarks cursor to the current bookmark position.
+ bookmarksCursor.moveToPosition(i)
+
+ // Update the display order only if it is not correct in the database.
+ if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i)
+ bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i)
+ }
+ }
+
+ // Reset the deleting bookmarks flag.
+ deletingBookmarks = false
+
+ // Enable the delete bookmarks menu item.
+ deleteBookmarksMenuItem.isEnabled = true
+
+ // Close the activity if back has been pressed.
+ if (closeActivityAfterDismissingSnackbar)
+ finish()
+ }
+ })
+
+ // Show the Snackbar.
+ bookmarksDeletedSnackbar!!.show()
+ } else if (menuItemId == R.id.context_menu_select_all_bookmarks) { // Select all.
+ // Get the total number of bookmarks.
+ val numberOfBookmarks = bookmarksListView.count
+
+ // Select them all.
+ for (i in 0 until numberOfBookmarks) {
+ bookmarksListView.setItemChecked(i, true)
+ }
+ }
+
+ // Consume the click.
+ return true
+ }
+
+ override fun onDestroyActionMode(mode: ActionMode) {
+ // Do nothing.
+ }
+ })
+
+ // Set the create new bookmark folder FAB to display the alert dialog.
+ createBookmarkFolderFab.setOnClickListener {
+ // Create a create bookmark folder dialog.
+ val createBookmarkFolderDialog: DialogFragment = createBookmarkFolder(currentFavoriteIconBitmap)
+
+ // Show the create bookmark folder dialog.
+ createBookmarkFolderDialog.show(supportFragmentManager, getString(R.string.create_folder))
+ }
+
+ // Set the create new bookmark FAB to display the alert dialog.
+ createBookmarkFab.setOnClickListener {
+ // Instantiate the create bookmark dialog.
+ val createBookmarkDialog: DialogFragment = createBookmark(currentUrl, currentTitle, currentFavoriteIconBitmap)
+
+ // Display the create bookmark dialog.
+ createBookmarkDialog.show(supportFragmentManager, resources.getString(R.string.create_bookmark))
+ }
+
+ // Restore the state if the app has been restarted.
+ if (savedInstanceState != null) {
+ // Restore the current folder.
+ currentFolder = savedInstanceState.getString(CURRENT_FOLDER)!!
+
+ // Update the bookmarks list view after it has loaded.
+ bookmarksListView.post {
+ // Get the checked bookmarks array list.
+ val checkedBookmarksArrayList = savedInstanceState.getIntegerArrayList(CHECKED_BOOKMARKS_ARRAY_LIST)!!
+
+ // Check each previously checked bookmark in the list view.
+ checkedBookmarksArrayList.forEach(Consumer { position: Int -> bookmarksListView.setItemChecked(position, true) })
+ }
+ }
+
+ // Load the current folder.
+ loadFolder()
+ }
+
+ public override fun onRestart() {
+ // Run the default commands.
+ super.onRestart()
+
+ // Update the list view if returning from the bookmarks database view activity.
+ if (restartFromBookmarksDatabaseViewActivity) {
+ // Load the current folder in the list view.
+ loadFolder()
+
+ // Reset the restart from bookmarks database view activity flag.
+ restartFromBookmarksDatabaseViewActivity = false
+ }
+ }
+
+ public override fun onSaveInstanceState(savedInstanceState: Bundle) {
+ // Run the default commands.
+ super.onSaveInstanceState(savedInstanceState)
+
+ // Get the sparse boolean array of the checked items.
+ val checkedBookmarksSparseBooleanArray = bookmarksListView.checkedItemPositions
+
+ // Create a checked items array list.
+ val checkedBookmarksArrayList = ArrayList<Int>()
+
+ // Add each checked bookmark position to the array list.
+ for (i in 0 until checkedBookmarksSparseBooleanArray.size()) {
+ // Check to see if the bookmark is currently checked. Bookmarks that have previously been checked but currently aren't will be populated in the sparse boolean array, but will return false.
+ if (checkedBookmarksSparseBooleanArray.valueAt(i)) {
+ // Add the bookmark position to the checked bookmarks array list.
+ checkedBookmarksArrayList.add(checkedBookmarksSparseBooleanArray.keyAt(i))
+ }
+ }
+
+ // Store the variables in the saved instance state.
+ savedInstanceState.putString(CURRENT_FOLDER, currentFolder)
+ savedInstanceState.putIntegerArrayList(CHECKED_BOOKMARKS_ARRAY_LIST, checkedBookmarksArrayList)
+ }
+
+ override fun onCreateOptionsMenu(menu: Menu): Boolean {
+ // Inflate the menu.
+ menuInflater.inflate(R.menu.bookmarks_options_menu, menu)
+
+ // Success.
+ return true
+ }
+
+ override fun onOptionsItemSelected(menuItem: MenuItem): Boolean {
+ // Get a handle for the menu item ID.
+ val menuItemId = menuItem.itemId
+
+ // Run the command according to the selected option.
+ if (menuItemId == android.R.id.home) { // Home. The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
+ if (currentFolder.isEmpty()) { // Currently in the home folder.
+ // Prepare to finish the activity.
+ prepareFinish()
+ } else { // Currently in a subfolder.
+ // Set the former parent folder as the current folder.
+ currentFolder = bookmarksDatabaseHelper.getParentFolderName(currentFolder)
+
+ // Load the new current folder.
+ loadFolder()
+ }
+ } else if (menuItemId == R.id.options_menu_select_all_bookmarks) { // Select all.
+ // Get the total number of bookmarks.
+ val numberOfBookmarks = bookmarksListView.count
+
+ // Select them all.
+ for (i in 0 until numberOfBookmarks) {
+ bookmarksListView.setItemChecked(i, true)
+ }
+ } else if (menuItemId == R.id.bookmarks_database_view) {
+ // Close the contextual action bar if it is displayed. This can happen if the bottom app bar is enabled.
+ contextualActionMode?.finish()
+
+ // Create an intent to launch the bookmarks database view activity.
+ val bookmarksDatabaseViewIntent = Intent(this, BookmarksDatabaseViewActivity::class.java)
+
+ // Include the favorite icon byte array to the intent.
+ bookmarksDatabaseViewIntent.putExtra(CURRENT_FAVORITE_ICON_BYTE_ARRAY, currentFavoriteIconByteArray)
+
+ // Make it so.
+ startActivity(bookmarksDatabaseViewIntent)
+ }
+ return true
+ }
+
+ override fun onCreateBookmark(dialogFragment: DialogFragment, favoriteIconBitmap: Bitmap) {
+ // Get the alert dialog from the fragment.
+ val dialog = dialogFragment.dialog!!
+
+ // Get the views from the dialog fragment.
+ val createBookmarkNameEditText = dialog.findViewById<EditText>(R.id.create_bookmark_name_edittext)
+ val createBookmarkUrlEditText = dialog.findViewById<EditText>(R.id.create_bookmark_url_edittext)
+
+ // Extract the strings from the edit texts.
+ val bookmarkNameString = createBookmarkNameEditText.text.toString()
+ val bookmarkUrlString = createBookmarkUrlEditText.text.toString()
+
+ // Create a favorite icon byte array output stream.
+ val favoriteIconByteArrayOutputStream = ByteArrayOutputStream()
+
+ // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
+ favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream)
+
+ // Convert the favorite icon byte array stream to a byte array.
+ val favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray()
+
+ // Display the new bookmark below the current items in the (0 indexed) list.
+ val newBookmarkDisplayOrder = bookmarksListView.count
+
+ // Create the bookmark.
+ bookmarksDatabaseHelper.createBookmark(bookmarkNameString, bookmarkUrlString, currentFolder, newBookmarkDisplayOrder, favoriteIconByteArray)
+
+ // Update the bookmarks cursor with the current contents of this folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder)
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor)
+
+ // Scroll to the new bookmark.
+ bookmarksListView.setSelection(newBookmarkDisplayOrder)
+ }
+
+ override fun onCreateBookmarkFolder(dialogFragment: DialogFragment, favoriteIconBitmap: Bitmap) {
+ // Get the dialog from the dialog fragment.
+ val dialog = dialogFragment.dialog!!
+
+ // Get handles for the views in the dialog fragment.
+ val folderNameEditText = dialog.findViewById<EditText>(R.id.folder_name_edittext)
+ val defaultIconRadioButton = dialog.findViewById<RadioButton>(R.id.default_icon_radiobutton)
+ val defaultIconImageView = dialog.findViewById<ImageView>(R.id.default_icon_imageview)
+
+ // Get new folder name string.
+ val folderNameString = folderNameEditText.text.toString()
+
+ // Set the folder icon bitmap according to the dialog.
+ val folderIconBitmap = if (defaultIconRadioButton.isChecked) { // Use the default folder icon.
+ // Get the default folder icon drawable.
+ val folderIconDrawable = defaultIconImageView.drawable
+
+ // Convert the folder icon drawable to a bitmap drawable.
+ val folderIconBitmapDrawable = folderIconDrawable as BitmapDrawable
+
+ // Convert the folder icon bitmap drawable to a bitmap.
+ folderIconBitmapDrawable.bitmap
+ } else { // Use the WebView favorite icon.
+ // Copy the favorite icon bitmap to the folder icon bitmap.
+ favoriteIconBitmap
+ }
+
+ // Create a folder icon byte array output stream.
+ val folderIconByteArrayOutputStream = ByteArrayOutputStream()
+
+ // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
+ folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream)
+
+ // Convert the folder icon byte array stream to a byte array.
+ val folderIconByteArray = folderIconByteArrayOutputStream.toByteArray()
+
+ // Move all the bookmarks down one in the display order.
+ for (i in 0 until bookmarksListView.count) {
+ val databaseId = bookmarksListView.getItemIdAtPosition(i).toInt()
+ bookmarksDatabaseHelper.updateDisplayOrder(databaseId, i + 1)
+ }
+
+ // Create the folder, which will be placed at the top of the list view.
+ bookmarksDatabaseHelper.createFolder(folderNameString, currentFolder, folderIconByteArray)
+
+ // Update the bookmarks cursor with the contents of the current folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder)
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor)
+
+ // Scroll to the new folder.
+ bookmarksListView.setSelection(0)
+ }
+
+ override fun onSaveBookmark(dialogFragment: DialogFragment, selectedBookmarkDatabaseId: Int, favoriteIconBitmap: Bitmap) {
+ // Get the dialog from the dialog fragment.
+ val dialog = dialogFragment.dialog!!
+
+ // Get handles for the views from the dialog fragment.
+ val bookmarkNameEditText = dialog.findViewById<EditText>(R.id.bookmark_name_edittext)
+ val bookmarkUrlEditText = dialog.findViewById<EditText>(R.id.bookmark_url_edittext)
+ val currentIconRadioButton = dialog.findViewById<RadioButton>(R.id.current_icon_radiobutton)
+
+ // Get the bookmark strings.
+ val bookmarkNameString = bookmarkNameEditText.text.toString()
+ val bookmarkUrlString = bookmarkUrlEditText.text.toString()
+
+ // Update the bookmark.
+ if (currentIconRadioButton.isChecked) { // Update the bookmark without changing the favorite icon.
+ bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString)
+ } else { // Update the bookmark using the WebView favorite icon.
+ // Create a favorite icon byte array output stream.
+ val newFavoriteIconByteArrayOutputStream = ByteArrayOutputStream()
+
+ // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
+ favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream)
+
+ // Convert the favorite icon byte array stream to a byte array.
+ val newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray()
+
+ // Update the bookmark and the favorite icon.
+ bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, newFavoriteIconByteArray)
+ }
+
+ // Close the contextual action bar if it is displayed.
+ contextualActionMode?.finish()
+
+ // Update the bookmarks cursor with the contents of the current folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder)
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor)
+ }
+
+ override fun onSaveBookmarkFolder(dialogFragment: DialogFragment, selectedFolderDatabaseId: Int, favoriteIconBitmap: Bitmap) {
+ // Get the dialog from the dialog fragment.
+ val dialog = dialogFragment.dialog!!
+
+ // Get handles for the views from the dialog fragment.
+ val currentFolderIconRadioButton = dialog.findViewById<RadioButton>(R.id.current_icon_radiobutton)
+ val defaultFolderIconRadioButton = dialog.findViewById<RadioButton>(R.id.default_icon_radiobutton)
+ val defaultFolderIconImageView = dialog.findViewById<ImageView>(R.id.default_icon_imageview)
+ val editFolderNameEditText = dialog.findViewById<EditText>(R.id.folder_name_edittext)
+
+ // Get the new folder name.
+ val newFolderNameString = editFolderNameEditText.text.toString()
+
+ // Check if the favorite icon has changed.
+ if (currentFolderIconRadioButton.isChecked) { // Only the name has changed.
+ // Update the name in the database.
+ bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString)
+ } else { // The icon has changed. TODO: Test.
+ // Populate the new folder icon bitmap.
+ val folderIconBitmap: Bitmap = if (defaultFolderIconRadioButton.isChecked) {
+ // Get the default folder icon drawable.
+ val folderIconDrawable = defaultFolderIconImageView.drawable
+
+ // Convert the folder icon drawable to a bitmap drawable.
+ val folderIconBitmapDrawable = folderIconDrawable as BitmapDrawable
+
+ // Convert the folder icon bitmap drawable to a bitmap.
+ folderIconBitmapDrawable.bitmap
+ } else { // Use the WebView favorite icon.
+ // Copy the favorite icon bitmap to the folder icon bitmap.
+ favoriteIconBitmap
+ }
+
+ // Create a folder icon byte array output stream.
+ val newFolderIconByteArrayOutputStream = ByteArrayOutputStream()
+
+ // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
+ folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream)
+
+ // Convert the folder icon byte array stream to a byte array.
+ val newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray()
+
+ // Update the database.
+ if (!currentFolderIconRadioButton.isChecked && newFolderNameString == oldFolderNameString) // Only the icon has changed.
+ bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, newFolderIconByteArray)
+ else // The folder icon and the name have changed.
+ bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString, newFolderIconByteArray)
+ }
+
+ // Update the bookmarks cursor with the current contents of this folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder)
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor)
+
+ // Close the contextual action mode.
+ contextualActionMode!!.finish()
+ }
+
+ override fun onMoveToFolder(dialogFragment: DialogFragment) {
+ // Get the dialog from the dialog fragment.
+ val dialog = dialogFragment.dialog!!
+
+ // Get a handle for the folder list view from the dialog.
+ val folderListView = dialog.findViewById<ListView>(R.id.move_to_folder_listview)
+
+ // Store a long array of the selected folders.
+ val newFolderLongArray = folderListView.checkedItemIds
+
+ // Get the new folder database ID. Only one folder will be selected so it will be the first one.
+ val newFolderDatabaseId = newFolderLongArray[0].toInt()
+
+ // Set the new folder name.
+ val newFolderName = if (newFolderDatabaseId == 0) {
+ // The new folder is the home folder, represented as `""` in the database.
+ ""
+ } else {
+ // Get the new folder name from the database.
+ bookmarksDatabaseHelper.getFolderName(newFolderDatabaseId)
+ }
+
+ // Get a long array with the the database ID of the selected bookmarks.
+ val selectedBookmarksLongArray = bookmarksListView.checkedItemIds
+
+ // Move each of the selected bookmarks to the new folder.
+ for (databaseIdLong in selectedBookmarksLongArray) {
+ // Convert the database long ID to an int for each selected bookmark.
+ val databaseIdInt = databaseIdLong.toInt()
+
+ // Move the selected bookmark to the new folder.
+ bookmarksDatabaseHelper.moveToFolder(databaseIdInt, newFolderName)
+ }
+
+ // Update the bookmarks cursor with the current contents of this folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder)
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor)
+
+ // Close the contextual app bar.
+ contextualActionMode!!.finish()
+ }
+
+ private fun countBookmarkFolderContents(folderDatabaseId: Int): Int {
+ // Get the name of the folder.
+ val folderName = bookmarksDatabaseHelper.getFolderName(folderDatabaseId)
+
+ // Get the contents of the folder.
+ val folderCursor = bookmarksDatabaseHelper.getBookmarkIds(folderName)
+
+ // Initialize the bookmark counter.
+ var bookmarkCounter = 0
+
+ // Count each of the bookmarks in the folder.
+ for (i in 0 until folderCursor.count) {
+ // Move the folder cursor to the current row.
+ folderCursor.moveToPosition(i)
+
+ // Get the database ID of the item.
+ val itemDatabaseId = folderCursor.getInt(folderCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID))
+
+ // If this is a folder, recursively count the contents first.
+ if (bookmarksDatabaseHelper.isFolder(itemDatabaseId))
+ bookmarkCounter += countBookmarkFolderContents(itemDatabaseId)
+
+ // Add the bookmark to the running total.
+ bookmarkCounter++
+ }
+
+ // Return the bookmark counter.
+ return bookmarkCounter
+ }
+
+ private fun deleteBookmarkFolderContents(folderDatabaseId: Int) {
+ // Get the name of the folder.
+ val folderName = bookmarksDatabaseHelper.getFolderName(folderDatabaseId)
+
+ // Get the contents of the folder.
+ val folderCursor = bookmarksDatabaseHelper.getBookmarkIds(folderName)
+
+ // Delete each of the bookmarks in the folder.
+ for (i in 0 until folderCursor.count) {
+ // Move the folder cursor to the current row.
+ folderCursor.moveToPosition(i)
+
+ // Get the database ID of the item.
+ val itemDatabaseId = folderCursor.getInt(folderCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID))
+
+ // If this is a folder, recursively delete the contents first.
+ if (bookmarksDatabaseHelper.isFolder(itemDatabaseId))
+ deleteBookmarkFolderContents(itemDatabaseId)
+
+ // Delete the bookmark.
+ bookmarksDatabaseHelper.deleteBookmark(itemDatabaseId)
+ }
+ }
+
+ private fun prepareFinish() {
+ // Check to see if a snackbar is currently displayed. If so, it must be closed before exiting so that a pending delete is completed before reloading the list view in the bookmarks drawer.
+ if (bookmarksDeletedSnackbar != null && bookmarksDeletedSnackbar!!.isShown) { // Close the bookmarks deleted snackbar before going home.
+ // Set the close flag.
+ closeActivityAfterDismissingSnackbar = true
+
+ // Dismiss the snackbar.
+ bookmarksDeletedSnackbar!!.dismiss()
+ } else { // Go home immediately.
+ // Update the bookmarks folder for the bookmarks drawer in the main WebView activity.
+ MainWebViewActivity.currentBookmarksFolder = currentFolder
+
+ // Close the bookmarks drawer and reload the bookmarks list view when returning to the main WebView activity.
+ MainWebViewActivity.restartFromBookmarksActivity = true
+
+ // Exit the bookmarks activity.
+ finish()
+ }
+ }
+
+ private fun updateMoveIcons() {
+ // Get a long array of the selected bookmarks.
+ val selectedBookmarksLongArray = bookmarksListView.checkedItemIds
+
+ // Get the database IDs for the first, last, and selected bookmarks.
+ val firstBookmarkDatabaseId = bookmarksListView.getItemIdAtPosition(0).toInt()
+ val lastBookmarkDatabaseId = bookmarksListView.getItemIdAtPosition(bookmarksListView.count - 1).toInt() // The bookmarks list view is 0 indexed.
+ val selectedBookmarkDatabaseId = selectedBookmarksLongArray[0].toInt()
+
+ // Update the move bookmark up menu item.
+ if (selectedBookmarkDatabaseId == firstBookmarkDatabaseId) { // The selected bookmark is in the first position.
+ // Disable the move bookmark up menu item.
+ moveBookmarkUpMenuItem.isEnabled = false
+
+ // Set the icon.
+ moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_disabled)
+ } else { // The selected bookmark is not in the first position.
+ // Enable the move bookmark up menu item.
+ moveBookmarkUpMenuItem.isEnabled = true
+
+ // Set the icon according to the theme.
+ moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_enabled)
+ }
+
+ // Update the move bookmark down menu item.
+ if (selectedBookmarkDatabaseId == lastBookmarkDatabaseId) { // The selected bookmark is in the last position.
+ // Disable the move bookmark down menu item.
+ moveBookmarkDownMenuItem.isEnabled = false
+
+ // Set the icon.
+ moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_disabled)
+ } else { // The selected bookmark is not in the last position.
+ // Enable the move bookmark down menu item.
+ moveBookmarkDownMenuItem.isEnabled = true
+
+ // Set the icon.
+ moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_enabled)
+ }
+ }
+
+ private fun scrollBookmarks(selectedBookmarkPosition: Int) {
+ // Get the first and last visible bookmark positions.
+ val firstVisibleBookmarkPosition = bookmarksListView.firstVisiblePosition
+ val lastVisibleBookmarkPosition = bookmarksListView.lastVisiblePosition
+
+ // Calculate the number of bookmarks per screen.
+ val numberOfBookmarksPerScreen = lastVisibleBookmarkPosition - firstVisibleBookmarkPosition
+
+ // Scroll with the moved bookmark if necessary.
+ if (selectedBookmarkPosition <= firstVisibleBookmarkPosition) { // The selected bookmark position is at or above the top of the screen.
+ // Scroll to the selected bookmark position.
+ bookmarksListView.setSelection(selectedBookmarkPosition)
+ } else if (selectedBookmarkPosition >= lastVisibleBookmarkPosition - 1) { // The selected bookmark is at or below the bottom of the screen.
+ // The `-1` handles partial bookmarks displayed at the bottom of the list view. This command scrolls to display the selected bookmark at the bottom of the screen.
+ // `+1` assures that the entire bookmark will be displayed in situations where only a partial bookmark fits at the bottom of the list view.
+ bookmarksListView.setSelection(selectedBookmarkPosition - numberOfBookmarksPerScreen + 1)
+ }
+ }
+
+ private fun loadFolder() {
+ // Update the bookmarks cursor with the contents of the bookmarks database for the current folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder)
+
+ // Setup a cursor adapter.
+ bookmarksCursorAdapter = object : CursorAdapter(this, bookmarksCursor, false) {
+ override fun newView(context: Context, cursor: Cursor, parent: ViewGroup): View {
+ // Inflate the individual item layout.
+ return layoutInflater.inflate(R.layout.bookmarks_activity_item_linearlayout, parent, false)
+ }
+
+ override fun bindView(view: View, context: Context, cursor: Cursor) {
+ // Get handles for the views.
+ val bookmarkFavoriteIconImageView = view.findViewById<ImageView>(R.id.bookmark_favorite_icon)
+ val bookmarkNameTextView = view.findViewById<TextView>(R.id.bookmark_name)
+
+ // Get the favorite icon byte array from the cursor.
+ val favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.FAVORITE_ICON))
+
+ // Convert the byte array to a bitmap beginning at the first byte and ending at the last.
+ val favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.size)
+
+ // Display the bitmap in the bookmark favorite icon image view.
+ bookmarkFavoriteIconImageView.setImageBitmap(favoriteIconBitmap)
+
+ // Get the bookmark name from the cursor.
+ val bookmarkNameString = cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME))
+
+ // Display the bookmark name.
+ bookmarkNameTextView.text = bookmarkNameString
+
+ // Make the font bold for folders.
+ if (cursor.getInt(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.IS_FOLDER)) == 1)
+ bookmarkNameTextView.typeface = Typeface.DEFAULT_BOLD
+ else // Reset the font to default for normal bookmarks.
+ bookmarkNameTextView.typeface = Typeface.DEFAULT
+ }
+ }
+
+ // Populate the list view with the adapter.
+ bookmarksListView.adapter = bookmarksCursorAdapter
+
+ // Set the app bar title.
+ if (currentFolder.isEmpty())
+ appBar.setTitle(R.string.bookmarks)
+ else
+ appBar.title = currentFolder
+ }
+
+ public override fun onDestroy() {
+ // Close the bookmarks cursor and database.
+ bookmarksCursor.close()
+ bookmarksDatabaseHelper.close()
+
+ // Run the default commands.
+ super.onDestroy()
+ }
+}
projects / PrivacyBrowserAndroid.git / blobdiff