Continued "user add/edit" dialog

app/src/main/java/io/heckel/ntfy/ui/AddFragment.kt

@@ -26,7 +26,6 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlin.random.Random
 
-
 class AddFragment : DialogFragment() {
     private val api = ApiService()
 

app/src/main/java/io/heckel/ntfy/ui/SettingsActivity.kt

@@ -563,13 +563,28 @@ class SettingsActivity : AppCompatActivity(), PreferenceFragmentCompat.OnPrefere
                     }
                     preference.onPreferenceClickListener = OnPreferenceClickListener { _ ->
                         activity?.let {
-                            UserFragment().show(it.supportFragmentManager, UserFragment.TAG)
+                            UserFragment
+                                .newInstance(user.user)
+                                .show(it.supportFragmentManager, UserFragment.TAG)
                         }
                         true
                     }
                     preferenceCategory.addPreference(preference)
                 }
             }
+
+            // Add user
+            val preference = Preference(preferenceScreen.context)
+            preference.title = getString(R.string.settings_users_prefs_user_add)
+            preference.onPreferenceClickListener = OnPreferenceClickListener { _ ->
+                activity?.let {
+                    UserFragment
+                        .newInstance(user = null)
+                        .show(it.supportFragmentManager, UserFragment.TAG)
+                }
+                true
+            }
+            preferenceScreen.addPreference(preference)
         }
     }
 

app/src/main/java/io/heckel/ntfy/ui/UserFragment.kt

@@ -3,31 +3,63 @@ package io.heckel.ntfy.ui
 import android.app.AlertDialog
 import android.app.Dialog
 import android.os.Bundle
+import android.text.Editable
+import android.text.TextWatcher
+import android.view.View
 import android.view.WindowManager
+import android.widget.Button
 import android.widget.TextView
+import androidx.core.content.ContextCompat
 import androidx.fragment.app.DialogFragment
+import com.google.android.material.textfield.TextInputEditText
 import io.heckel.ntfy.R
+import io.heckel.ntfy.db.User
 
 class UserFragment : DialogFragment() {
+    private var user: User? = null
+
+    private lateinit var baseUrlView: TextInputEditText
+    private lateinit var usernameView: TextInputEditText
+    private lateinit var passwordView: TextInputEditText
+    private lateinit var positiveButton: Button
+
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        if (activity == null) {
-            throw IllegalStateException("Activity cannot be null")
+        // Reconstruct user (if it is present in the bundle)
+        val userId = arguments?.getLong(BUNDLE_USER_ID)
+        val baseUrl = arguments?.getString(BUNDLE_BASE_URL)
+        val username = arguments?.getString(BUNDLE_USERNAME)
+        val password = arguments?.getString(BUNDLE_PASSWORD)
+
+        if (userId != null && baseUrl != null && username != null && password != null) {
+            user = User(userId, baseUrl, username, password)
         }
 
         // Build root view
         val view = requireActivity().layoutInflater.inflate(R.layout.fragment_user_dialog, null)
 
-        val addMode = false // FIXME
-        val positiveButtonTextResId = if (addMode) R.string.user_dialog_button_add else R.string.user_dialog_button_save
-        val titleText = view.findViewById(R.id.user_dialog_title) as TextView
-        titleText.text = if (addMode) {
-            getString(R.string.user_dialog_title_add)
+        val positiveButtonTextResId = if (user == null) R.string.user_dialog_button_add else R.string.user_dialog_button_save
+        val titleView = view.findViewById(R.id.user_dialog_title) as TextView
+        val descriptionView = view.findViewById(R.id.user_dialog_description) as TextView
+
+        baseUrlView = view.findViewById(R.id.user_dialog_base_url)
+        usernameView = view.findViewById(R.id.user_dialog_username)
+        passwordView = view.findViewById(R.id.user_dialog_password)
+
+        if (user == null) {
+            titleView.text = getString(R.string.user_dialog_title_add)
+            descriptionView.text = getString(R.string.user_dialog_description_add)
+            baseUrlView.visibility = View.VISIBLE
+            passwordView.hint = getString(R.string.user_dialog_password_hint_add)
         } else {
-            getString(R.string.user_dialog_title_edit)
+            titleView.text = getString(R.string.user_dialog_title_edit)
+            descriptionView.text = getString(R.string.user_dialog_description_edit)
+            baseUrlView.visibility = View.GONE
+            usernameView.setText(user!!.username)
+            passwordView.hint = getString(R.string.user_dialog_password_hint_edit)
         }
 
         // Build dialog
-        val dialog = AlertDialog.Builder(activity)
+        val builder = AlertDialog.Builder(activity)
             .setView(view)
             .setPositiveButton(positiveButtonTextResId) { _, _ ->
                 // This will be overridden below to avoid closing the dialog immediately
@@ -35,23 +67,78 @@ class UserFragment : DialogFragment() {
             .setNegativeButton(R.string.user_dialog_button_cancel) { _, _ ->
                 // This will be overridden below
             }
-            .setNeutralButton(R.string.user_dialog_button_delete)  { _, _ ->
+        if (user != null) {
+            builder.setNeutralButton(R.string.user_dialog_button_delete)  { _, _ ->
                 // This will be overridden below
             }
-            .create()
+        }
+        val dialog = builder.create()
+        dialog.setOnShowListener {
+            positiveButton = dialog.getButton(AlertDialog.BUTTON_POSITIVE)
+
+            // Delete button should be red
+            if (user != null) {
+                dialog
+                    .getButton(AlertDialog.BUTTON_NEUTRAL)
+                    .setTextColor(ContextCompat.getColor(requireContext(), R.color.primaryDangerButtonColor))
+            }
+
+            // Validate input when typing
+            val textWatcher = object : TextWatcher {
+                override fun afterTextChanged(s: Editable?) {
+                    validateInput()
+                }
+                override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
+                    // Nothing
+                }
+                override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
+                    // Nothing
+                }
+            }
+            baseUrlView.addTextChangedListener(textWatcher)
+            usernameView.addTextChangedListener(textWatcher)
+            passwordView.addTextChangedListener(textWatcher)
+
+            // Validate now!
+            validateInput()
+        }
 
         // Show keyboard when the dialog is shown (see https://stackoverflow.com/a/19573049/1440785)
         dialog.window?.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
 
-        // Add logic to disable "Subscribe" button on invalid input
-        dialog.setOnShowListener {
-
-        }
-
         return dialog
     }
 
+    private fun validateInput() {
+        val baseUrl = baseUrlView.text?.toString() ?: ""
+        val username = usernameView.text?.toString() ?: ""
+        val password = passwordView.text?.toString() ?: ""
+        if (user == null) {
+            positiveButton.isEnabled = (baseUrl.startsWith("http://") || baseUrl.startsWith("https://"))
+                    && username.isNotEmpty() && password.isNotEmpty()
+        } else {
+            positiveButton.isEnabled = username.isNotEmpty() // Unchanged if left blank
+        }
+    }
+
     companion object {
         const val TAG = "NtfyUserFragment"
+        private const val BUNDLE_USER_ID = "userId"
+        private const val BUNDLE_BASE_URL = "baseUrl"
+        private const val BUNDLE_USERNAME = "username"
+        private const val BUNDLE_PASSWORD = "password"
+
+        fun newInstance(user: User?): UserFragment {
+            val fragment = UserFragment()
+            val args = Bundle()
+            if (user != null) {
+                args.putLong(BUNDLE_USER_ID, user.id)
+                args.putString(BUNDLE_BASE_URL, user.baseUrl)
+                args.putString(BUNDLE_USERNAME, user.username)
+                args.putString(BUNDLE_PASSWORD, user.password)
+                fragment.arguments = args
+            }
+            return fragment
+        }
     }
 }

app/src/main/res/layout/fragment_user_dialog.xml

@@ -8,6 +8,13 @@
         android:paddingLeft="16dp"
         android:paddingRight="16dp"
         android:visibility="visible">
+    <TextView
+            android:text="This topic requires you to login. Please pick an existing user or type in a username and password."
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" android:id="@+id/user_dialog_description"
+            android:paddingStart="4dp" android:paddingTop="3dp" app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/user_dialog_title"/>
     <TextView
             android:id="@+id/user_dialog_title"
             android:layout_width="0dp"
@@ -18,9 +25,16 @@
             android:textAlignment="viewStart"
             android:textAppearance="@style/TextAppearance.AppCompat.Large" android:paddingStart="4dp"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toTopOf="parent"
             app:layout_constraintEnd_toEndOf="parent"/>
 
+    <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/user_dialog_base_url"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" android:hint="@string/user_dialog_base_url_hint"
+            android:importantForAutofill="no"
+            android:maxLines="1" android:inputType="text"
+            app:layout_constraintStart_toStartOf="parent" app:layout_constraintEnd_toEndOf="parent"
+            android:layout_marginTop="6dp" app:layout_constraintTop_toBottomOf="@id/user_dialog_description"/>
     <com.google.android.material.textfield.TextInputEditText
             android:id="@+id/user_dialog_username"
             android:layout_width="match_parent"
@@ -28,11 +42,11 @@
             android:importantForAutofill="no"
             android:maxLines="1" android:inputType="text"
             app:layout_constraintStart_toStartOf="parent" app:layout_constraintEnd_toEndOf="parent"
-            android:layout_marginTop="6dp" app:layout_constraintTop_toBottomOf="@+id/user_dialog_title"/>
+            android:layout_marginTop="6dp" app:layout_constraintTop_toBottomOf="@id/user_dialog_base_url"/>
     <com.google.android.material.textfield.TextInputEditText
             android:id="@+id/user_dialog_password"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content" android:hint="@string/user_dialog_password_hint"
+            android:layout_height="wrap_content" android:hint="@string/user_dialog_password_hint_add"
             android:importantForAutofill="no"
             android:maxLines="1" android:inputType="textPassword"
             app:layout_constraintStart_toStartOf="parent" app:layout_constraintEnd_toEndOf="parent"

app/src/main/res/values/strings.xml

@@ -246,6 +246,7 @@
     <string name="settings_users_prefs_user_not_used">Not used by any topics</string>
     <string name="settings_users_prefs_user_used_by_one">Used by topic %1$s</string>
     <string name="settings_users_prefs_user_used_by_many">Used by topics %1$s</string>
+    <string name="settings_users_prefs_user_add">Add user</string>
     <string name="settings_unified_push_header">UnifiedPush</string>
     <string name="settings_unified_push_header_summary">Allows other apps to use ntfy as a message distributor. Find out more at unifiedpush.org.</string>
     <string name="settings_unified_push_enabled_key">UnifiedPushEnabled</string>
@@ -297,8 +298,12 @@
     <!-- User add/edit dialog -->
     <string name="user_dialog_title_add">Add user</string>
     <string name="user_dialog_title_edit">Edit user</string>
+    <string name="user_dialog_description_add">You can add a user here that you can later associate with a specific topic.</string>
+    <string name="user_dialog_description_edit">You may edit username/password for the selected user, or delete it entirely.</string>
+    <string name="user_dialog_base_url_hint">Server URL</string>
     <string name="user_dialog_username_hint">Username</string>
-    <string name="user_dialog_password_hint">Password</string>
+    <string name="user_dialog_password_hint_add">Password</string>
+    <string name="user_dialog_password_hint_edit">Password (unchanged if blank)</string>
     <string name="user_dialog_button_add">Add user</string>
     <string name="user_dialog_button_cancel">Cancel</string>
     <string name="user_dialog_button_delete">Delete user</string>