X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FEditBookmarkFolderDatabaseViewDialog.kt;fp=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FEditBookmarkFolderDatabaseViewDialog.kt;h=603dff26494e690f28cc93acebfbf2ae25d8b250;hp=0000000000000000000000000000000000000000;hb=bc2e180db377eedadbe1ea455d8fb311ead8f9d6;hpb=a9b4d8c78a305c2602ced2058702254ea4e3b79b diff --git a/app/src/main/java/com/stoutner/privacybrowser/dialogs/EditBookmarkFolderDatabaseViewDialog.kt b/app/src/main/java/com/stoutner/privacybrowser/dialogs/EditBookmarkFolderDatabaseViewDialog.kt new file mode 100644 index 00000000..603dff26 --- /dev/null +++ b/app/src/main/java/com/stoutner/privacybrowser/dialogs/EditBookmarkFolderDatabaseViewDialog.kt @@ -0,0 +1,437 @@ +/* + * 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.Dialog +import android.content.Context +import android.content.DialogInterface +import android.database.Cursor +import android.database.DatabaseUtils +import android.database.MatrixCursor +import android.database.MergeCursor +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.* +import android.widget.AdapterView.OnItemSelectedListener + +import androidx.appcompat.app.AlertDialog +import androidx.core.content.ContextCompat +import androidx.cursoradapter.widget.ResourceCursorAdapter +import androidx.fragment.app.DialogFragment +import androidx.preference.PreferenceManager + +import com.stoutner.privacybrowser.R +import com.stoutner.privacybrowser.activities.BookmarksDatabaseViewActivity +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 EditBookmarkFolderDatabaseViewDialog: DialogFragment() { + // The public interface is used to send information back to the parent activity. + interface EditBookmarkFolderDatabaseViewListener { + fun onSaveBookmarkFolder(dialogFragment: DialogFragment, selectedFolderDatabaseId: Int, favoriteIconBitmap: Bitmap) + } + + // Declare the class variables. + private lateinit var editBookmarkFolderDatabaseViewListener: EditBookmarkFolderDatabaseViewListener + + // Declare the class views. + private lateinit var nameEditText: EditText + private lateinit var folderSpinner: Spinner + private lateinit var displayOrderEditText: EditText + private lateinit var currentIconRadioButton: RadioButton + private lateinit var saveButton: Button + + override fun onAttach(context: Context) { + // Run the default commands. + super.onAttach(context) + + // Get a handle for edit bookmark database view listener from the launching context. + editBookmarkFolderDatabaseViewListener = context as EditBookmarkFolderDatabaseViewListener + } + + 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 folderDatabaseId(databaseId: Int, favoriteIconBitmap: Bitmap): EditBookmarkFolderDatabaseViewDialog { + // 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 editBookmarkFolderDatabaseViewDialog = EditBookmarkFolderDatabaseViewDialog() + + // Add the arguments bundle to the dialog. + editBookmarkFolderDatabaseViewDialog.arguments = argumentsBundle + + // Return the new dialog. + return editBookmarkFolderDatabaseViewDialog + } + } + + // `@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 a handle for the arguments. + val arguments = requireArguments() + + // Get the variables from the arguments. + val folderDatabaseId = 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 folderCursor = bookmarksDatabaseHelper.getBookmark(folderDatabaseId) + + // Move the cursor to the first position. + folderCursor.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_folder) + + // 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_folder_databaseview_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. + editBookmarkFolderDatabaseViewListener.onSaveBookmarkFolder(this, folderDatabaseId, favoriteIconBitmap) + } + + // Create an alert dialog from the alert dialog 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 databaseIdTextView = alertDialog.findViewById(R.id.edit_folder_database_id_textview)!! + val iconRadioGroup = alertDialog.findViewById(R.id.edit_folder_icon_radiogroup)!! + val currentIconImageView = alertDialog.findViewById(R.id.edit_folder_current_icon_imageview)!! + val newFavoriteIconImageView = alertDialog.findViewById(R.id.edit_folder_webpage_favorite_icon_imageview)!! + currentIconRadioButton = alertDialog.findViewById(R.id.edit_folder_current_icon_radiobutton)!! + nameEditText = alertDialog.findViewById(R.id.edit_folder_name_edittext)!! + folderSpinner = alertDialog.findViewById(R.id.edit_folder_parent_folder_spinner)!! + displayOrderEditText = alertDialog.findViewById(R.id.edit_folder_display_order_edittext)!! + saveButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE) + + // Store the current folder values. + val currentFolderName = folderCursor.getString(folderCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)) + val currentDisplayOrder = folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) + val parentFolder = folderCursor.getString(folderCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER)) + + // Populate the database ID text view. + databaseIdTextView.text = folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper._ID)).toString() + + // Get the current favorite icon byte array from the cursor. + val currentIconByteArray = folderCursor.getBlob(folderCursor.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) + + // Populate the current icon image view. + currentIconImageView.setImageBitmap(currentIconBitmap) + + // Populate the new favorite icon image view. + newFavoriteIconImageView.setImageBitmap(favoriteIconBitmap) + + // Populate the folder name edit text. + nameEditText.setText(currentFolderName) + + // Define an array of matrix cursor column names. + val matrixCursorColumnNames = arrayOf(BookmarksDatabaseHelper._ID, BookmarksDatabaseHelper.BOOKMARK_NAME) + + // Create a matrix cursor. + val matrixCursor = MatrixCursor(matrixCursorColumnNames) + + // Add `Home Folder` to the matrix cursor. + matrixCursor.addRow(arrayOf(BookmarksDatabaseViewActivity.HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder))) + + // Get a string of the current folder and all subfolders. + val currentAndSubfolderString = getStringOfSubfolders(currentFolderName, bookmarksDatabaseHelper) + + // Get a cursor with the list of all the folders. + val foldersCursor = bookmarksDatabaseHelper.getFoldersExcept(currentAndSubfolderString) + + // Combine the matrix cursor and the folders cursor. + val combinedFoldersCursor = MergeCursor(arrayOf(matrixCursor, foldersCursor)) + + // Create a resource cursor adapter for the spinner. + val foldersCursorAdapter: ResourceCursorAdapter = object: ResourceCursorAdapter(context, R.layout.databaseview_spinner_item, combinedFoldersCursor, 0) { + override fun bindView(view: View, context: Context, cursor: Cursor) { + // Get handles for the spinner views. + val spinnerItemImageView = view.findViewById(R.id.spinner_item_imageview) + val spinnerItemTextView = view.findViewById(R.id.spinner_item_textview) + + // Set the folder icon according to the type. + if (combinedFoldersCursor.position == 0) { // Set the `Home Folder` icon. + // Set the gray folder image. `ContextCompat` must be used until the minimum API >= 21. + spinnerItemImageView.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.folder_gray)) + } else { // Set a user folder icon. + // Get the folder icon byte array. + val folderIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)) + + // Convert the byte array to a bitmap beginning at the first byte and ending at the last. + val folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.size) + + // Set the folder icon. + spinnerItemImageView.setImageBitmap(folderIconBitmap) + } + + // Set the text view to display the folder name. + spinnerItemTextView.text = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)) + } + } + + // Set the folders cursor adapter drop drown view resource. + foldersCursorAdapter.setDropDownViewResource(R.layout.databaseview_spinner_dropdown_items) + + // Set the adapter for the folder `Spinner`. + folderSpinner.adapter = foldersCursorAdapter + + // Select the current folder in the spinner if the bookmark isn't in the "Home Folder". + if (parentFolder != "") { + // Get the database ID of the parent folder as a long. + val parentFolderDatabaseId = bookmarksDatabaseHelper.getFolderDatabaseId(folderCursor.getString(folderCursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER))).toLong() + + // Initialize the parent folder position and the iteration variable. + var parentFolderPosition = 0 + var i = 0 + + // Find the parent folder position in the folders cursor adapter. + do { + if (foldersCursorAdapter.getItemId(i) == parentFolderDatabaseId) { + // Store the current position for the parent folder. + parentFolderPosition = i + } else { + // Try the next entry. + i++ + } + // Stop when the parent folder position is found or all the items in the folders cursor adapter have been checked. + } while (parentFolderPosition == 0 && i < foldersCursorAdapter.count) + + // Select the parent folder in the spinner. + folderSpinner.setSelection(parentFolderPosition) + } + + // Store the current folder database ID. + val currentParentFolderDatabaseId = folderSpinner.selectedItemId.toInt() + + // Populate the display order edit text. + displayOrderEditText.setText(folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)).toString()) + + // Initially disable the edit button. + saveButton.isEnabled = false + + // Update the save button if the icon selection changes. + iconRadioGroup.setOnCheckedChangeListener { _: RadioGroup?, _: Int -> + // Update the save button. + updateSaveButton(bookmarksDatabaseHelper, currentFolderName, currentParentFolderDatabaseId, currentDisplayOrder) + } + + // 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(bookmarksDatabaseHelper, currentFolderName, currentParentFolderDatabaseId, currentDisplayOrder) + } + }) + + // Update the save button if the folder changes. + folderSpinner.onItemSelectedListener = object: OnItemSelectedListener { + override fun onItemSelected(parent: AdapterView<*>?, view: View, position: Int, id: Long) { + // Update the save button. + updateSaveButton(bookmarksDatabaseHelper, currentFolderName, currentParentFolderDatabaseId, currentDisplayOrder) + } + + override fun onNothingSelected(parent: AdapterView<*>?) { + // Do nothing. + } + } + + // Update the save button if the display order changes. + displayOrderEditText.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(bookmarksDatabaseHelper, currentFolderName, currentParentFolderDatabaseId, currentDisplayOrder) + } + }) + + // 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. + editBookmarkFolderDatabaseViewListener.onSaveBookmarkFolder(this, folderDatabaseId, 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 display order edit text. + displayOrderEditText.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. + editBookmarkFolderDatabaseViewListener.onSaveBookmarkFolder(this, folderDatabaseId, 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(bookmarksDatabaseHelper: BookmarksDatabaseHelper, currentFolderName: String, currentParentFolderDatabaseId: Int, currentDisplayOrder: Int) { + // Get the values from the views. + val newFolderName = nameEditText.text.toString() + val newParentFolderDatabaseId = folderSpinner.selectedItemId.toInt() + val newDisplayOrder = displayOrderEditText.text.toString() + + // Get a cursor for the new folder name if it exists. + val folderExistsCursor = bookmarksDatabaseHelper.getFolder(newFolderName) + + // Is the new folder name empty? + val folderNameNotEmpty = newFolderName.isNotEmpty() + + // Does the folder name already exist? + val folderNameAlreadyExists = (newFolderName != currentFolderName) && folderExistsCursor.count > 0 + + // Has the favorite icon changed? + val iconChanged = !currentIconRadioButton.isChecked + + // Has the folder been renamed? + val folderRenamed = (newFolderName != currentFolderName) && !folderNameAlreadyExists + + // Has the parent folder changed? + val parentFolderChanged = newParentFolderDatabaseId != currentParentFolderDatabaseId + + // Has the display order changed? + val displayOrderChanged = newDisplayOrder != currentDisplayOrder.toString() + + // Is the display order empty? + val displayOrderNotEmpty = newDisplayOrder.isNotEmpty() + + // Update the enabled status of the edit button. + saveButton.isEnabled = (iconChanged || folderRenamed || parentFolderChanged || displayOrderChanged) && folderNameNotEmpty && displayOrderNotEmpty + } + + private fun getStringOfSubfolders(folderName: String, bookmarksDatabaseHelper: BookmarksDatabaseHelper): String { + // Get a cursor will all the immediate subfolders. + val subfoldersCursor = bookmarksDatabaseHelper.getSubfolders(folderName) + + // Initialize the subfolder string builder and populate it with the current folder. + val currentAndSubfolderStringBuilder = StringBuilder(DatabaseUtils.sqlEscapeString(folderName)) + + // Populate the subfolder string builder + for (i in 0 until subfoldersCursor.count) { + // Move the subfolder cursor to the current item. + subfoldersCursor.moveToPosition(i) + + // Get the name of the subfolder. + val subfolderName = subfoldersCursor.getString(subfoldersCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)) + + // Add a comma to the end of the existing string. + currentAndSubfolderStringBuilder.append(",") + + // Get the folder name and run the task for any subfolders. + val subfolderString = getStringOfSubfolders(subfolderName, bookmarksDatabaseHelper) + + // Add the folder name to the string builder. + currentAndSubfolderStringBuilder.append(subfolderString) + } + + // Return the string of folders. + return currentAndSubfolderStringBuilder.toString() + } +} \ No newline at end of file