import android.content.Context
import android.database.Cursor
import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
import android.view.Menu
+import android.view.MenuInflater
import android.view.MenuItem
import android.view.View
import android.view.ViewGroup
import androidx.appcompat.widget.SwitchCompat
import androidx.appcompat.widget.Toolbar
import androidx.core.app.NavUtils
+import androidx.core.view.MenuProvider
import androidx.cursoradapter.widget.CursorAdapter
import androidx.fragment.app.DialogFragment
+import androidx.fragment.app.commitNow
+import androidx.lifecycle.Lifecycle
import androidx.preference.PreferenceManager
import com.google.android.material.floatingactionbutton.FloatingActionButton
import com.stoutner.privacybrowser.dialogs.AddDomainDialog.AddDomainListener
import com.stoutner.privacybrowser.fragments.DomainSettingsFragment
import com.stoutner.privacybrowser.fragments.DomainsListFragment
-import com.stoutner.privacybrowser.fragments.DomainsListFragment.DismissSnackbarInterface
-import com.stoutner.privacybrowser.fragments.DomainsListFragment.SaveDomainSettingsInterface
import com.stoutner.privacybrowser.helpers.DOMAIN_NAME
import com.stoutner.privacybrowser.helpers.ID
import com.stoutner.privacybrowser.helpers.DomainsDatabaseHelper
// Define the public constants.
const val CLOSE_ON_BACK = "close_on_back"
const val CURRENT_IP_ADDRESSES = "current_ip_addresses"
+const val DOMAIN_SETTINGS_FRAGMENT_TAG = "domain_settings_fragment"
const val LOAD_DOMAIN = "load_domain"
const val SSL_END_DATE = "ssl_end_date"
const val SSL_ISSUED_BY_CNAME = "ssl_issued_by_cname"
private const val DOMAIN_SETTINGS_SCROLL_Y = "domain_settings_scroll_y"
private const val LISTVIEW_POSITION = "listview_position"
-class DomainsActivity : AppCompatActivity(), AddDomainListener, DismissSnackbarInterface, SaveDomainSettingsInterface {
+class DomainsActivity : AppCompatActivity(), AddDomainListener, DomainsListFragment.DismissSnackbarInterface, DomainsListFragment.SaveDomainSettingsInterface {
companion object {
// Define the public variables.
var currentDomainDatabaseId = 0 // Used in `DomainsListFragment`.
+ var deleteMenuItemEnabled = true
var dismissingSnackbar = false // Used in `DomainsListFragment`.
var domainsListViewPosition = 0 // Used in `DomainsListFragment`.
var sslEndDateLong: Long = 0 // Used in `DomainsSettingsFragment`.
var sslStartDateLong: Long = 0 // Used in `DomainSettingsFragment`.
var twoPanedMode = false // Used in `DomainsListFragment`.
- // Declare the public views. They are used in `DomainsListFragment`.
- lateinit var deleteMenuItem: MenuItem
-
// Declare the SSL certificate and IP address strings.
var currentIpAddresses: String? = null // Used in `DomainSettingsFragment`.
var sslIssuedToCName: String? = null // Used in `DomainSettingsFragment`.
// Declare the class views.
private lateinit var addDomainFAB: FloatingActionButton
private lateinit var coordinatorLayout: View
+
+ // Define the class views.
private var domainsListView: ListView? = null
private var undoDeleteSnackbar: Snackbar? = null
val domainsListFragment = DomainsListFragment()
// Display the domains list fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commitNow()
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainsListFragment)
+ }
// Populate the list of domains. `-1` highlights the first domain if in two-paned mode. It has no effect in single-paned mode.
populateDomainsListView(-1, domainsListViewPosition)
// Show the add domain floating action button.
addDomainFAB.show()
-
- // Hide the delete menu item.
- deleteMenuItem.isVisible = false
} else { // The device is in single-paned mode and the domain list fragment is displayed.
// Dismiss the undo delete SnackBar if it is shown.
if (undoDeleteSnackbar != null && undoDeleteSnackbar!!.isShown) {
}
}
- // Register the on back pressed callback.
- onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
- }
+ // Get a handle for the activity (used in an inner class below).
+ val activity: Activity = this
+
+ // Add the menu provider. This runs each time a fragment is replaced.
+ addMenuProvider(object : MenuProvider {
+ override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
+ // Inflate the menu.
+ menuInflater.inflate(R.menu.domains_options_menu, menu)
+
+ // Get a handle for the delete menu item.
+ val deleteMenuItem = menu.findItem(R.id.delete_domain)
+
+ // Get the domain settings fragment.
+ val domainSettingsFragment = supportFragmentManager.findFragmentByTag(DOMAIN_SETTINGS_FRAGMENT_TAG)
+
+ // Update the visibility of the delete menu item.
+ if (twoPanedMode) // The device is in two-paned mode and a domain is selected.
+ deleteMenuItem.isVisible = true
+ else if ((domainSettingsFragment != null) && domainSettingsFragment.isVisible) // The device is in single-paned mode and the domain settings fragment is visible.
+ deleteMenuItem.isVisible = true
+ else // The device is in two-paned mode but no domain is selected (like after deleting a domain) or the device is in single-paned mode and the domains list is visible.
+ deleteMenuItem.isVisible = false
+
+ // Update the status of the delete menu item.
+ deleteMenuItem.isEnabled = deleteMenuItemEnabled
+ }
+
+ override fun onMenuItemSelected(menuItem: MenuItem): Boolean {
+ // Run the command according to the selected menu item.
+ when (menuItem.itemId) {
+ android.R.id.home -> { // The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
+ // Check if the device is in two-paned mode.
+ if (twoPanedMode) { // The device is in two-paned mode.
+ // Save the current domain settings if the domain settings fragment is displayed.
+ if (findViewById<View?>(R.id.domain_settings_scrollview) != null)
+ saveDomainSettings(coordinatorLayout)
+
+ // Dismiss the undo delete snackbar if it is shown.
+ if (undoDeleteSnackbar != null && undoDeleteSnackbar!!.isShown) {
+ // Set the close flag.
+ closeActivityAfterDismissingSnackbar = true
+
+ // Dismiss the snackbar.
+ undoDeleteSnackbar!!.dismiss()
+ } else {
+ // Go home.
+ finish()
+ }
+ } else if (closeOnBack) { // Go directly back to the main WebView activity because the domains activity was launched from the options menu.
+ // Save the current domain settings.
+ saveDomainSettings(coordinatorLayout)
+
+ // Go home.
+ finish()
+ } else if (findViewById<View?>(R.id.domain_settings_scrollview) != null) { // The device is in single-paned mode and the domain settings fragment is displayed.
+ // Save the current domain settings.
+ saveDomainSettings(coordinatorLayout)
+
+ // Instantiate a new domains list fragment.
+ val domainsListFragment = DomainsListFragment()
+
+ // Display the domains list fragment.
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainsListFragment)
+ }
+
+ // Populate the list of domains. `-1` highlights the first domain if in two-paned mode. It has no effect in single-paned mode.
+ populateDomainsListView(-1, domainsListViewPosition)
+
+ // Show the add domain floating action button.
+ addDomainFAB.show()
+ } else { // The device is in single-paned mode and domains list fragment is displayed.
+ // Dismiss the undo delete snackbar if it is shown.
+ if (undoDeleteSnackbar != null && undoDeleteSnackbar!!.isShown) {
+ // Set the close flag.
+ closeActivityAfterDismissingSnackbar = true
+
+ // Dismiss the snackbar.
+ undoDeleteSnackbar!!.dismiss()
+ } else {
+ // Go home.
+ finish()
+ }
+ }
+ }
+
+ R.id.delete_domain -> { // Delete.
+ // Check to see if the domain settings were loaded directly for editing of this app in single-paned mode.
+ if (closeOnBack && !twoPanedMode) { // The activity should delete the domain settings and exit straight to the the main WebView activity.
+ // Delete the selected domain.
+ domainsDatabaseHelper.deleteDomain(currentDomainDatabaseId)
+
+ // Go home.
+ NavUtils.navigateUpFromSameTask(activity)
+ } else { // A snackbar should be shown before deleting the domain settings.
+ // Reset close-on-back, which otherwise can cause errors if the system attempts to save settings for a domain that no longer exists.
+ closeOnBack = false
+
+ // Store a copy of the current domain database ID because it could change while the snackbar is displayed.
+ val databaseIdToDelete = currentDomainDatabaseId
+
+ // Update the fragments and menu items.
+ if (twoPanedMode) { // Two-paned mode.
+ // Store the deleted domain position, which is needed if undo is selected in the snackbar.
+ deletedDomainPosition = domainsListView!!.checkedItemPosition
+
+ // Disable the delete menu item.
+ deleteMenuItemEnabled = false
+
+ // Get a handle for the domain settings fragment.
+ val domainSettingsFragment = supportFragmentManager.findFragmentById(R.id.domain_settings_fragment_container)!!
+
+ // Get a handle for the domain settings fragment view.
+ val domainSettingsFragmentView = domainSettingsFragment.requireView()
+
+ // Hide the domain settings fragment.
+ domainSettingsFragmentView.visibility = View.INVISIBLE
+
+ // Disable the delete menu item.
+ deleteMenuItemEnabled = false
+
+ // Invalidate the options menu.
+ invalidateMenu()
+
+ } else { // Single-paned mode.
+ // Instantiate a new domains list fragment.
+ val domainsListFragment = DomainsListFragment()
+
+ // Display the domains list fragment.
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainsListFragment)
+ }
+
+ // Show the add domain floating action button.
+ addDomainFAB.show()
+ }
+
+ // Get a cursor that does not show the domain to be deleted.
+ val domainsPendingDeleteCursor = domainsDatabaseHelper.getDomainNameCursorOrderedByDomainExcept(databaseIdToDelete)
+
+ // Setup the domains pending delete cursor adapter.
+ val domainsPendingDeleteCursorAdapter: CursorAdapter = object : CursorAdapter(applicationContext, domainsPendingDeleteCursor, false) {
+ override fun newView(context: Context, cursor: Cursor, parent: ViewGroup): View {
+ // Inflate the individual item layout.
+ return layoutInflater.inflate(R.layout.domain_name_linearlayout, parent, false)
+ }
+
+ override fun bindView(view: View, context: Context, cursor: Cursor) {
+ // Get the domain name string.
+ val domainNameString = cursor.getString(cursor.getColumnIndexOrThrow(DOMAIN_NAME))
- override fun onCreateOptionsMenu(menu: Menu): Boolean {
- // Inflate the menu.
- menuInflater.inflate(R.menu.domains_options_menu, menu)
+ // Get a handle for the domain name text view.
+ val domainNameTextView = view.findViewById<TextView>(R.id.domain_name_textview)
- // Get a handle for the delete menu item.
- deleteMenuItem = menu.findItem(R.id.delete_domain)
+ // Display the domain name.
+ domainNameTextView.text = domainNameString
+ }
+ }
+
+ // Update the handle for the current domains list view.
+ domainsListView = findViewById(R.id.domains_listview)
+
+ // Update the list view.
+ domainsListView!!.adapter = domainsPendingDeleteCursorAdapter
+
+ // Display a snackbar.
+ undoDeleteSnackbar = Snackbar.make(domainsListView!!, R.string.domain_deleted, Snackbar.LENGTH_LONG)
+ .setAction(R.string.undo) {} // Do nothing because everything will be handled by `onDismissed()` below.
+ .addCallback(object : Snackbar.Callback() {
+ override fun onDismissed(snackbar: Snackbar, event: Int) {
+ // Run commands based on the event.
+ if (event == DISMISS_EVENT_ACTION) { // The user pushed the `Undo` button.
+ // Create an arguments bundle.
+ val argumentsBundle = Bundle()
+
+ // Store the domains settings in the arguments bundle.
+ argumentsBundle.putInt(DomainSettingsFragment.DATABASE_ID, databaseIdToDelete)
+ argumentsBundle.putInt(DomainSettingsFragment.SCROLL_Y, domainSettingsScrollY)
+
+ // Instantiate a new domain settings fragment.
+ val domainSettingsFragment = DomainSettingsFragment()
+
+ // Add the arguments bundle to the domain settings fragment.
+ domainSettingsFragment.arguments = argumentsBundle
+
+ // Display the correct fragments.
+ if (twoPanedMode) { // The device in in two-paned mode.
+ // Get a cursor with the current contents of the domains database.
+ val undoDeleteDomainsCursor = domainsDatabaseHelper.domainNameCursorOrderedByDomain
+
+ // Setup the domains cursor adapter.
+ val undoDeleteDomainsCursorAdapter: CursorAdapter = object : CursorAdapter(applicationContext, undoDeleteDomainsCursor, false) {
+ override fun newView(context: Context, cursor: Cursor, parent: ViewGroup): View {
+ // Inflate the individual item layout.
+ return layoutInflater.inflate(R.layout.domain_name_linearlayout, parent, false)
+ }
+
+ override fun bindView(view: View, context: Context, cursor: Cursor) {
+ /// Get the domain name string.
+ val domainNameString = cursor.getString(cursor.getColumnIndexOrThrow(DOMAIN_NAME))
+
+ // Get a handle for the domain name text view.
+ val domainNameTextView = view.findViewById<TextView>(R.id.domain_name_textview)
+
+ // Display the domain name.
+ domainNameTextView.text = domainNameString
+ }
+ }
+
+ // Update the domains list view.
+ domainsListView!!.adapter = undoDeleteDomainsCursorAdapter
+
+ // Select the previously deleted domain in the list view.
+ domainsListView!!.setItemChecked(deletedDomainPosition, true)
+
+ // Enable the delete menu item.
+ deleteMenuItemEnabled = true
+
+ // Display the domain settings fragment.
+ supportFragmentManager.commitNow {
+ replace(R.id.domain_settings_fragment_container, domainSettingsFragment, DOMAIN_SETTINGS_FRAGMENT_TAG)
+ }
+ } else { // The device in in one-paned mode.
+ // Hide the add domain floating action button.
+ addDomainFAB.hide()
+
+ // Display the domain settings fragment.
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainSettingsFragment, DOMAIN_SETTINGS_FRAGMENT_TAG)
+ }
+ }
+ } else { // The snackbar was dismissed without the undo button being pushed.
+ // Delete the selected domain.
+ val rowsDeleted = domainsDatabaseHelper.deleteDomain(databaseIdToDelete)
+
+ // Enable the delete menu item.
+ // The rows deleted should always be greater than 0, but in all cases they should be greater than -1.
+ // This has the effect of tricking the compiler into waiting until after the delete finishes to reenable the delete menu item,
+ // because the compiler (probably) can't tell that the response will never be less than -1, so it doesn't compile out the delay.
+ if (rowsDeleted > -1) {
+ // Enable the delete menu item if in two-paned mode.
+ if (twoPanedMode) {
+ // Enable the delete menu item.
+ deleteMenuItemEnabled = true
+
+ // Invalidate the options menu.
+ invalidateMenu()
+ }
+
+ // Reset the dismissing snackbar tracker.
+ dismissingSnackbar = false
+ }
+
+ // Close the activity if back was pressed.
+ if (closeActivityAfterDismissingSnackbar)
+ NavUtils.navigateUpFromSameTask(activity)
+ }
+ }
+ })
+
+ // Show the Snackbar.
+ undoDeleteSnackbar!!.show()
+ }
+ }
+ }
- // Only display the delete menu item (initially) in two-paned mode.
- deleteMenuItem.isVisible = twoPanedMode
+ // Consume the event.
+ return true
+ }
+ }, this, Lifecycle.State.RESUMED)
- // Display the fragments. This must be done from `onCreateOptionsMenu()` instead of `onCreate()` because `populateDomainsListView()` needs `deleteMenuItem` to be inflated.
- if (appRestarted && domainSettingsDisplayedBeforeRestart) { // The app was restarted, possibly because the device was rotated, and domain settings were displayed previously.
+ // Display the fragments.
+ if (appRestarted && domainSettingsDisplayedBeforeRestart) { // The app was restarted and domain settings were displayed previously.
// Reset the app restarted flag.
appRestarted = false
val domainsListFragment = DomainsListFragment()
// Display the domains list fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commitNow()
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainsListFragment)
+ }
+
+ // Create a populate domains list view handler.
+ val populateDomainsListViewHandler = Handler(Looper.getMainLooper())
+
+ // Create a populate domains list view runnable.
+ val populateDomainsListViewRunnable = Runnable {
+ populateDomainsListView(domainSettingsDatabaseIdBeforeRestart, domainsListViewPosition)
+ }
- // Populate the list of domains and highlight the domain that was highlighted before the restart.
- populateDomainsListView(domainSettingsDatabaseIdBeforeRestart, domainsListViewPosition)
+ // Populate the domains list view. For some reason, beginning with appcompat 1.7.0, this needs to be in a runnable instead of being called directly, or the system crashes.
+ populateDomainsListViewHandler.post(populateDomainsListViewRunnable)
} else { // The device is in single-paned mode.
// Store the current domain database ID.
currentDomainDatabaseId = domainSettingsDatabaseIdBeforeRestart
// Add the arguments bundle to the domain settings fragment.
domainSettingsFragment.arguments = argumentsBundle
- // Show the delete menu item.
- deleteMenuItem.isVisible = true
-
// Hide the add domain floating action button.
addDomainFAB.hide()
// Display the domain settings fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commitNow()
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainSettingsFragment, DOMAIN_SETTINGS_FRAGMENT_TAG)
+ }
}
} else { // The device was not restarted or, if it was, domain settings were not displayed previously.
if (goDirectlyToDatabaseId >= 0) { // Load the indicated domain settings.
val domainsListFragment = DomainsListFragment()
// Display the domains list fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commitNow()
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainsListFragment)
+ }
- // Populate the list of domains.
- populateDomainsListView(goDirectlyToDatabaseId, domainsListViewPosition)
+ // Create a populate domains list view handler.
+ val populateDomainsListViewHandler = Handler(Looper.getMainLooper())
+
+ // Create a populate domains list view runnable.
+ val populateDomainsListViewRunnable = Runnable {
+ populateDomainsListView(goDirectlyToDatabaseId, domainsListViewPosition)
+ }
+
+ // Populate the domains list view. For some reason, beginning with appcompat 1.7.0, this needs to be in a runnable instead of being called directly, or the system crashes.
+ populateDomainsListViewHandler.post(populateDomainsListViewRunnable)
} else { // The device is in single-paned mode.
// Create an arguments bundle.
val argumentsBundle = Bundle()
// Add the arguments bundle to the domain settings fragment.
domainSettingsFragment.arguments = argumentsBundle
- // Show the delete menu item.
- deleteMenuItem.isVisible = true
-
// Hide the add domain floating action button.
addDomainFAB.hide()
// Display the domain settings fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commitNow()
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainSettingsFragment, DOMAIN_SETTINGS_FRAGMENT_TAG)
+ }
}
- } else { // Highlight the first domain.
- // Instantiate a new domains list fragment.
+ } else { // Display the domains list view.
+ // Instantiate a new domain settings fragment.
val domainsListFragment = DomainsListFragment()
- // Display the domain list fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commitNow()
-
- // Populate the list of domains. `-1` highlights the first domain.
- populateDomainsListView(-1, domainsListViewPosition)
- }
- }
-
- // Success!
- return true
- }
-
- override fun onOptionsItemSelected(menuItem: MenuItem): Boolean {
- // Run the command according to the selected menu item.
- when (menuItem.itemId) {
- android.R.id.home -> { // The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
- // Check if the device is in two-paned mode.
- if (twoPanedMode) { // The device is in two-paned mode.
- // Save the current domain settings if the domain settings fragment is displayed.
- if (findViewById<View?>(R.id.domain_settings_scrollview) != null)
- saveDomainSettings(coordinatorLayout)
-
- // Dismiss the undo delete snackbar if it is shown.
- if (undoDeleteSnackbar != null && undoDeleteSnackbar!!.isShown) {
- // Set the close flag.
- closeActivityAfterDismissingSnackbar = true
-
- // Dismiss the snackbar.
- undoDeleteSnackbar!!.dismiss()
- } else {
- // Go home.
- finish()
- }
- } else if (closeOnBack) { // Go directly back to the main WebView activity because the domains activity was launched from the options menu.
- // Save the current domain settings.
- saveDomainSettings(coordinatorLayout)
-
- // Go home.
- finish()
- } else if (findViewById<View?>(R.id.domain_settings_scrollview) != null) { // The device is in single-paned mode and the domain settings fragment is displayed.
- // Save the current domain settings.
- saveDomainSettings(coordinatorLayout)
-
- // Instantiate a new domains list fragment.
- val domainsListFragment = DomainsListFragment()
+ // Display the domains list fragment.
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainsListFragment)
+ }
- // Display the domains list fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commitNow()
+ // Create a populate domains list view handler.
+ val populateDomainsListViewHandler = Handler(Looper.getMainLooper())
- // Populate the list of domains. `-1` highlights the first domain if in two-paned mode. It has no effect in single-paned mode.
+ // Create a populate domains list view runnable.
+ val populateDomainsListViewRunnable = Runnable {
populateDomainsListView(-1, domainsListViewPosition)
-
- // Show the add domain floating action button.
- addDomainFAB.show()
-
- // Hide the delete menu item.
- deleteMenuItem.isVisible = false
- } else { // The device is in single-paned mode and domains list fragment is displayed.
- // Dismiss the undo delete snackbar if it is shown.
- if (undoDeleteSnackbar != null && undoDeleteSnackbar!!.isShown) {
- // Set the close flag.
- closeActivityAfterDismissingSnackbar = true
-
- // Dismiss the snackbar.
- undoDeleteSnackbar!!.dismiss()
- } else {
- // Go home.
- finish()
- }
}
- }
-
- R.id.delete_domain -> { // Delete.
- // Get a handle for the activity (used in an inner class below).
- val activity: Activity = this
-
- // Check to see if the domain settings were loaded directly for editing of this app in single-paned mode.
- if (closeOnBack && !twoPanedMode) { // The activity should delete the domain settings and exit straight to the the main WebView activity.
- // Delete the selected domain.
- domainsDatabaseHelper.deleteDomain(currentDomainDatabaseId)
-
- // Go home.
- NavUtils.navigateUpFromSameTask(activity)
- } else { // A snackbar should be shown before deleting the domain settings.
- // Reset close-on-back, which otherwise can cause errors if the system attempts to save settings for a domain that no longer exists.
- closeOnBack = false
- // Store a copy of the current domain database ID because it could change while the snackbar is displayed.
- val databaseIdToDelete = currentDomainDatabaseId
-
- // Update the fragments and menu items.
- if (twoPanedMode) { // Two-paned mode.
- // Store the deleted domain position, which is needed if undo is selected in the snackbar.
- deletedDomainPosition = domainsListView!!.checkedItemPosition
-
- // Disable the delete menu item.
- deleteMenuItem.isEnabled = false
-
- // Remove the domain settings fragment.
- supportFragmentManager.beginTransaction().remove(supportFragmentManager.findFragmentById(R.id.domain_settings_fragment_container)!!).commitNow()
- } else { // Single-paned mode.
- // Instantiate a new domains list fragment.
- val domainsListFragment = DomainsListFragment()
-
- // Display the domains list fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commitNow()
-
- // Show the add domain floating action button.
- addDomainFAB.show()
-
- // Hide the delete menu item.
- deleteMenuItem.isVisible = false
- }
-
- // Get a cursor that does not show the domain to be deleted.
- val domainsPendingDeleteCursor = domainsDatabaseHelper.getDomainNameCursorOrderedByDomainExcept(databaseIdToDelete)
-
- // Setup the domains pending delete cursor adapter.
- val domainsPendingDeleteCursorAdapter: CursorAdapter = object : CursorAdapter(this, domainsPendingDeleteCursor, false) {
- override fun newView(context: Context, cursor: Cursor, parent: ViewGroup): View {
- // Inflate the individual item layout.
- return layoutInflater.inflate(R.layout.domain_name_linearlayout, parent, false)
- }
-
- override fun bindView(view: View, context: Context, cursor: Cursor) {
- // Get the domain name string.
- val domainNameString = cursor.getString(cursor.getColumnIndexOrThrow(DOMAIN_NAME))
-
- // Get a handle for the domain name text view.
- val domainNameTextView = view.findViewById<TextView>(R.id.domain_name_textview)
-
- // Display the domain name.
- domainNameTextView.text = domainNameString
- }
- }
-
- // Update the handle for the current domains list view.
- domainsListView = findViewById(R.id.domains_listview)
-
- // Update the list view.
- domainsListView!!.adapter = domainsPendingDeleteCursorAdapter
-
- // Display a snackbar.
- undoDeleteSnackbar = Snackbar.make(domainsListView!!, R.string.domain_deleted, Snackbar.LENGTH_LONG)
- .setAction(R.string.undo) {} // Do nothing because everything will be handled by `onDismissed()` below.
- .addCallback(object : Snackbar.Callback() {
- override fun onDismissed(snackbar: Snackbar, event: Int) {
- // Run commands based on the event.
- if (event == DISMISS_EVENT_ACTION) { // The user pushed the `Undo` button.
- // Create an arguments bundle.
- val argumentsBundle = Bundle()
-
- // Store the domains settings in the arguments bundle.
- argumentsBundle.putInt(DomainSettingsFragment.DATABASE_ID, databaseIdToDelete)
- argumentsBundle.putInt(DomainSettingsFragment.SCROLL_Y, domainSettingsScrollY)
-
- // Instantiate a new domain settings fragment.
- val domainSettingsFragment = DomainSettingsFragment()
-
- // Add the arguments bundle to the domain settings fragment.
- domainSettingsFragment.arguments = argumentsBundle
-
- // Display the correct fragments.
- if (twoPanedMode) { // The device in in two-paned mode.
- // Get a cursor with the current contents of the domains database.
- val undoDeleteDomainsCursor = domainsDatabaseHelper.domainNameCursorOrderedByDomain
-
- // Setup the domains cursor adapter.
- val undoDeleteDomainsCursorAdapter: CursorAdapter = object : CursorAdapter(applicationContext, undoDeleteDomainsCursor, false) {
- override fun newView(context: Context, cursor: Cursor, parent: ViewGroup): View {
- // Inflate the individual item layout.
- return layoutInflater.inflate(R.layout.domain_name_linearlayout, parent, false)
- }
-
- override fun bindView(view: View, context: Context, cursor: Cursor) {
- /// Get the domain name string.
- val domainNameString = cursor.getString(cursor.getColumnIndexOrThrow(DOMAIN_NAME))
-
- // Get a handle for the domain name text view.
- val domainNameTextView = view.findViewById<TextView>(R.id.domain_name_textview)
-
- // Display the domain name.
- domainNameTextView.text = domainNameString
- }
- }
-
- // Update the domains list view.
- domainsListView!!.adapter = undoDeleteDomainsCursorAdapter
-
- // Select the previously deleted domain in the list view.
- domainsListView!!.setItemChecked(deletedDomainPosition, true)
-
- // Display the domain settings fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domain_settings_fragment_container, domainSettingsFragment).commitNow()
-
- // Enable the delete menu item.
- deleteMenuItem.isEnabled = true
- } else { // The device in in one-paned mode.
- // Display the domain settings fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commitNow()
-
- // Hide the add domain floating action button.
- addDomainFAB.hide()
-
- // Show and enable the delete menu item.
- deleteMenuItem.isVisible = true
-
- // Display the domain settings fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commitNow()
- }
- } else { // The snackbar was dismissed without the undo button being pushed.
- // Delete the selected domain.
- val rowsDeleted = domainsDatabaseHelper.deleteDomain(databaseIdToDelete)
-
- // Enable the delete menu item.
- // The rows deleted should always be greater than 0, but in all cases they should be greater than -1.
- // This has the effect of tricking the compiler into waiting until after the delete finishes to reenable the delete menu item,
- // because the compiler (probably) can't tell that the response will never be less than -1, so it doesn't compile out the delay.
- if (rowsDeleted > -1) {
- // Enable or show the delete menu item according to the display mode.
- if (twoPanedMode)
- deleteMenuItem.isEnabled = true
- else
- deleteMenuItem.isVisible = true
-
- // Reset the dismissing snackbar tracker.
- dismissingSnackbar = false
- }
-
- // Close the activity if back was pressed.
- if (closeActivityAfterDismissingSnackbar)
- NavUtils.navigateUpFromSameTask(activity)
- }
- }
- })
-
- // Show the Snackbar.
- undoDeleteSnackbar!!.show()
- }
+ // Populate the domains list view. For some reason, beginning with appcompat 1.7.0, this needs to be in a runnable instead of being called directly, or the system crashes.
+ populateDomainsListViewHandler.post(populateDomainsListViewRunnable)
}
}
- // Consume the event.
- return true
+ // Register the on back pressed callback.
+ onBackPressedDispatcher.addCallback(this, onBackPressedCallback)
}
override fun onSaveInstanceState(outState: Bundle) {
// Hide the add domain floating action button.
addDomainFAB.hide()
- // Show and enable the delete menu item.
- deleteMenuItem.isVisible = true
-
// Create an arguments bundle.
val argumentsBundle = Bundle()
domainSettingsFragment.arguments = argumentsBundle
// Display the domain settings fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commitNow()
+ supportFragmentManager.commitNow {
+ replace(R.id.domains_listview_fragment_container, domainSettingsFragment, DOMAIN_SETTINGS_FRAGMENT_TAG)
+ }
}
}
domainsListView!!.setSelection(domainsListViewPosition)
// Display the domain settings in the second pane if operating in two pane mode and the database contains at least one domain.
- if (twoPanedMode && domainsCursor.count > 0) { // Two-paned mode is enabled and there is at least one domain.
+ if (twoPanedMode && (domainsCursor.count > 0)) { // Two-paned mode is enabled and there is at least one domain.
// Initialize the highlighted domain position tracker.
var highlightedDomainPosition = 0
domainSettingsFragment.arguments = argumentsBundle
// Display the domain settings fragment.
- supportFragmentManager.beginTransaction().replace(R.id.domain_settings_fragment_container, domainSettingsFragment).commit()
+ supportFragmentManager.commitNow {
+ replace(R.id.domain_settings_fragment_container, domainSettingsFragment, DOMAIN_SETTINGS_FRAGMENT_TAG)
+ }
- // Enable the delete options menu items.
- deleteMenuItem.isEnabled = true
+ // Enable the delete options menu item.
+ deleteMenuItemEnabled = true
+
+ // Update the options menu.
+ invalidateMenu()
} else if (twoPanedMode) { // Two-paned mode is enabled but there are no domains.
// Disable the delete menu item.
- deleteMenuItem.isEnabled = false
+ deleteMenuItemEnabled = false
+
+ // Update the options menu.
+ invalidateMenu()
}
}