[UI] Refactor dropdown inputs code.

app/src/main/java/pl/szczodrzynski/edziennik/ui/dialogs/event/EventManualDialog.kt

@@ -23,9 +23,7 @@ import pl.szczodrzynski.edziennik.data.api.events.ApiTaskAllFinishedEvent
 import pl.szczodrzynski.edziennik.data.api.events.ApiTaskErrorEvent
 import pl.szczodrzynski.edziennik.data.api.events.ApiTaskFinishedEvent
 import pl.szczodrzynski.edziennik.data.api.szkolny.SzkolnyApi
-import pl.szczodrzynski.edziennik.data.db.entity.Event
-import pl.szczodrzynski.edziennik.data.db.entity.Metadata
-import pl.szczodrzynski.edziennik.data.db.entity.Profile
+import pl.szczodrzynski.edziennik.data.db.entity.*
 import pl.szczodrzynski.edziennik.data.db.full.EventFull
 import pl.szczodrzynski.edziennik.data.db.full.LessonFull
 import pl.szczodrzynski.edziennik.databinding.DialogEventManualV2Binding
@@ -396,11 +394,11 @@ class EventManualDialog(
     private fun saveEvent() {
         val date = b.dateDropdown.getSelected() as? Date
         val timeSelected = b.timeDropdown.getSelected()
-        val teamId = b.teamDropdown.getSelected() as? Long
-        val type = b.typeDropdown.selected?.id
+        val team = b.teamDropdown.getSelected()
+        val type = b.typeDropdown.getSelected()
         val topic = b.topic.text?.toString()
-        val subjectId = b.subjectDropdown.getSelected() as? Long
-        val teacherId = b.teacherDropdown.getSelected()
+        val subject = b.subjectDropdown.getSelected() as? Subject
+        val teacher = b.teacherDropdown.getSelected()
 
         val share = b.shareSwitch.isChecked
 
@@ -431,7 +429,7 @@ class EventManualDialog(
             isError = true
         }
 
-        if (share && teamId == null) {
+        if (share && team == null) {
             b.teamDropdown.error = app.getString(R.string.dialog_event_manual_team_choose)
             if (!isError) b.teamDropdown.parent.requestChildFocus(b.teamDropdown, b.teamDropdown)
             isError = true
@@ -467,10 +465,10 @@ class EventManualDialog(
                 time = startTime,
                 topic = topic,
                 color = customColor,
-                type = type ?: Event.TYPE_DEFAULT,
-                teacherId = teacherId ?: -1,
-                subjectId = subjectId ?: -1,
-                teamId = teamId ?: -1,
+                type = type?.id ?: Event.TYPE_DEFAULT,
+                teacherId = teacher?.id ?: -1,
+                subjectId = subject?.id ?: -1,
+                teamId = team?.id ?: -1,
                 addedDate = editingEvent?.addedDate ?: System.currentTimeMillis()
         ).also {
             it.addedManually = true
@@ -478,7 +476,7 @@ class EventManualDialog(
 
         val metadataObject = Metadata(
                 profileId,
-                when (type) {
+                when (type?.id) {
                     Event.TYPE_HOMEWORK -> Metadata.TYPE_HOMEWORK
                     else -> Metadata.TYPE_EVENT
                 },
@@ -578,10 +576,10 @@ class EventManualDialog(
         }
 
         onSaveListener?.invoke(eventObject.withMetadata(metadataObject).also {
-            it.subjectLongName = b.subjectDropdown.selected?.text?.toString()
-            it.teacherName = b.teacherDropdown.selected?.text?.toString()
-            it.teamName = b.teamDropdown.selected?.text?.toString()
-            it.typeName = b.typeDropdown.selected?.text?.toString()
+            it.subjectLongName = (b.subjectDropdown.getSelected() as? Subject)?.longName
+            it.teacherName = b.teacherDropdown.getSelected()?.fullName
+            it.teamName = b.teamDropdown.getSelected()?.name
+            it.typeName = b.typeDropdown.getSelected()?.name
         })
         dialog.dismiss()
         Toast.makeText(activity, R.string.saved, Toast.LENGTH_SHORT).show()

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/views/DateDropdown.kt

@@ -175,7 +175,7 @@ class DateDropdown : TextInputDropDown {
         }
     }
 
-    fun pickerDialog() {
+    private fun pickerDialog() {
         val date = getSelected() as? Date ?: Date.getToday()
 
         MaterialDatePicker.Builder.datePicker()

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/views/EventTypeDropdown.kt

@@ -5,9 +5,7 @@
 package pl.szczodrzynski.edziennik.ui.modules.views
 
 import android.content.Context
-import android.content.ContextWrapper
 import android.util.AttributeSet
-import androidx.appcompat.app.AppCompatActivity
 import com.mikepenz.iconics.IconicsDrawable
 import com.mikepenz.iconics.typeface.library.community.material.CommunityMaterial
 import com.mikepenz.iconics.utils.colorInt
@@ -23,18 +21,6 @@ class EventTypeDropdown : TextInputDropDown {
     constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
     constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
 
-    private val activity: AppCompatActivity?
-        get() {
-            var context: Context? = context ?: return null
-            if (context is AppCompatActivity) return context
-            while (context is ContextWrapper) {
-                if (context is AppCompatActivity)
-                    return context
-                context = context.baseContext
-            }
-            return null
-        }
-
     lateinit var db: AppDb
     var profileId: Int = 0
     var onTypeSelected: ((eventType: EventType) -> Unit)? = null
@@ -83,9 +69,7 @@ class EventTypeDropdown : TextInputDropDown {
     /**
      * Select an event type by the [typeId].
      */
-    fun selectType(typeId: Long) {
-        select(typeId)
-    }
+    fun selectType(typeId: Long) = select(typeId)
 
     /**
      * Select an event type by the [typeId] **if it's not selected yet**.

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/views/SubjectDropdown.kt

@@ -15,6 +15,7 @@ import kotlinx.coroutines.withContext
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.crc16
 import pl.szczodrzynski.edziennik.data.db.AppDb
+import pl.szczodrzynski.edziennik.data.db.entity.Subject
 import pl.szczodrzynski.edziennik.ui.dialogs.input
 import pl.szczodrzynski.edziennik.utils.TextInputDropDown
 
@@ -40,7 +41,7 @@ class SubjectDropdown : TextInputDropDown {
     var showNoSubject = true
     var showCustomSubject = false
     var customSubjectName = ""
-    var onSubjectSelected: ((subjectId: Long?) -> Unit)? = null
+    var onSubjectSelected: ((subject: Subject?) -> Unit)? = null
     var onCustomSubjectSelected: ((subjectName: String) -> Unit)? = null
 
     override fun create(context: Context) {
@@ -73,7 +74,7 @@ class SubjectDropdown : TextInputDropDown {
             list += subjects.map { Item(
                     it.id,
                     it.longName,
-                    tag = it.id
+                    tag = it
             ) }
 
             list
@@ -91,10 +92,11 @@ class SubjectDropdown : TextInputDropDown {
                 }
                 -1L -> {
                     // no subject
+                    deselect()
                     onSubjectSelected?.invoke(null)
-                    true
+                    false
                 }
-                is Long -> {
+                is Subject -> {
                     // selected a subject
                     onSubjectSelected?.invoke(it.tag)
                     true
@@ -104,7 +106,7 @@ class SubjectDropdown : TextInputDropDown {
         }
     }
 
-    fun customNameDialog() {
+    private fun customNameDialog() {
         activity ?: return
         MaterialAlertDialogBuilder(activity!!)
             .setTitle("Własny przedmiot")
@@ -127,32 +129,37 @@ class SubjectDropdown : TextInputDropDown {
             .show()
     }
 
-    fun selectSubject(subjectId: Long) {
-        if (select(subjectId) == null)
-            select(Item(
-                    subjectId,
-                    "nieznany przedmiot ($subjectId)",
-                    tag = subjectId
-            ))
+    /**
+     * Select a subject by the [subjectId].
+     */
+    fun selectSubject(subjectId: Long): Item? {
+        if (subjectId == -1L) {
+            deselect()
+            return null
+        }
+        return select(subjectId)
     }
 
-    fun selectDefault(subjectId: Long?) {
+    /**
+     * Select a subject by the [subjectId] **if it's not selected yet**.
+     */
+    fun selectDefault(subjectId: Long?): Item? {
         if (subjectId == null || selected != null)
-            return
-        selectSubject(subjectId)
+            return null
+        return selectSubject(subjectId)
     }
 
     /**
      * Get the currently selected subject.
      * ### Returns:
      * - null if no valid subject is selected
-     * - [Long] - the selected subject's ID
+     * - [Subject] - the selected subject
      * - [String] - a custom subject name entered, if [showCustomSubject] == true
      */
     fun getSelected(): Any? {
         return when (selected?.tag) {
             -1L -> null
-            is Long -> selected?.tag as Long
+            is Subject -> selected?.tag as Subject
             is String -> selected?.tag as String
             else -> null
         }

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/views/TeacherDropdown.kt

@@ -5,13 +5,12 @@
 package pl.szczodrzynski.edziennik.ui.modules.views
 
 import android.content.Context
-import android.content.ContextWrapper
 import android.util.AttributeSet
-import androidx.appcompat.app.AppCompatActivity
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import pl.szczodrzynski.edziennik.R
 import pl.szczodrzynski.edziennik.data.db.AppDb
+import pl.szczodrzynski.edziennik.data.db.entity.Teacher
 import pl.szczodrzynski.edziennik.utils.TextInputDropDown
 
 class TeacherDropdown : TextInputDropDown {
@@ -19,22 +18,10 @@ class TeacherDropdown : TextInputDropDown {
     constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
     constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
 
-    private val activity: AppCompatActivity?
-        get() {
-            var context: Context? = context ?: return null
-            if (context is AppCompatActivity) return context
-            while (context is ContextWrapper) {
-                if (context is AppCompatActivity)
-                    return context
-                context = context.baseContext
-            }
-            return null
-        }
-
     lateinit var db: AppDb
     var profileId: Int = 0
     var showNoTeacher = true
-    var onTeacherSelected: ((teacherId: Long?) -> Unit)? = null
+    var onTeacherSelected: ((teacher: Teacher?) -> Unit)? = null
 
     override fun create(context: Context) {
         super.create(context)
@@ -58,7 +45,7 @@ class TeacherDropdown : TextInputDropDown {
             list += teachers.map { Item(
                     it.id,
                     it.fullName,
-                    tag = it.id
+                    tag = it
             ) }
 
             list
@@ -71,10 +58,11 @@ class TeacherDropdown : TextInputDropDown {
             when (it.tag) {
                 -1L -> {
                     // no teacher
+                    deselect()
                     onTeacherSelected?.invoke(null)
-                    true
+                    false
                 }
-                is Long -> {
+                is Teacher -> {
                     // selected a teacher
                     onTeacherSelected?.invoke(it.tag)
                     true
@@ -87,34 +75,33 @@ class TeacherDropdown : TextInputDropDown {
     /**
      * Select a teacher by the [teacherId].
      */
-    fun selectTeacher(teacherId: Long) {
-        if (select(teacherId) == null)
-            select(Item(
-                    teacherId,
-                    "nieznany nauczyciel ($teacherId)",
-                    tag = teacherId
-            ))
+    fun selectTeacher(teacherId: Long): Item? {
+        if (teacherId == -1L) {
+            deselect()
+            return null
+        }
+        return select(teacherId)
     }
 
     /**
      * Select a teacher by the [teacherId] **if it's not selected yet**.
      */
-    fun selectDefault(teacherId: Long?) {
+    fun selectDefault(teacherId: Long?): Item? {
         if (teacherId == null || selected != null)
-            return
-        selectTeacher(teacherId)
+            return null
+        return selectTeacher(teacherId)
     }
 
     /**
      * Get the currently selected teacher.
      * ### Returns:
      * - null if no valid teacher is selected
-     * - [Long] - the selected teacher's ID
+     * - [Teacher] - the selected teacher
      */
-    fun getSelected(): Long? {
+    fun getSelected(): Teacher? {
         return when (selected?.tag) {
             -1L -> null
-            is Long -> selected?.tag as Long
+            is Teacher -> selected?.tag as Teacher
             else -> null
         }
     }

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/views/TeamDropdown.kt

@@ -5,9 +5,7 @@
 package pl.szczodrzynski.edziennik.ui.modules.views
 
 import android.content.Context
-import android.content.ContextWrapper
 import android.util.AttributeSet
-import androidx.appcompat.app.AppCompatActivity
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import pl.szczodrzynski.edziennik.R
@@ -20,22 +18,10 @@ class TeamDropdown : TextInputDropDown {
     constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
     constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
 
-    private val activity: AppCompatActivity?
-        get() {
-            var context: Context? = context ?: return null
-            if (context is AppCompatActivity) return context
-            while (context is ContextWrapper) {
-                if (context is AppCompatActivity)
-                    return context
-                context = context.baseContext
-            }
-            return null
-        }
-
     lateinit var db: AppDb
     var profileId: Int = 0
     var showNoTeam = true
-    var onTeamSelected: ((teamId: Long?) -> Unit)? = null
+    var onTeamSelected: ((team: Team?) -> Unit)? = null
 
     override fun create(context: Context) {
         super.create(context)
@@ -59,7 +45,7 @@ class TeamDropdown : TextInputDropDown {
             list += teams.map { Item(
                     it.id,
                     it.name,
-                    tag = it.id
+                    tag = it
             ) }
 
             list
@@ -72,10 +58,11 @@ class TeamDropdown : TextInputDropDown {
             when (it.tag) {
                 -1L -> {
                     // no team
+                    deselect()
                     onTeamSelected?.invoke(null)
-                    true
+                    false
                 }
-                is Long -> {
+                is Team -> {
                     // selected a team
                     onTeamSelected?.invoke(it.tag)
                     true
@@ -85,21 +72,29 @@ class TeamDropdown : TextInputDropDown {
         }
     }
 
-    fun selectTeam(teamId: Long) {
-        if (select(teamId) == null)
-            select(Item(
-                    teamId,
-                    "nieznana grupa ($teamId)",
-                    tag = teamId
-            ))
+    /**
+     * Select a teacher by the [teamId].
+     */
+    fun selectTeam(teamId: Long): Item? {
+        if (teamId == -1L) {
+            deselect()
+            return null
+        }
+        return select(teamId)
     }
 
-    fun selectDefault(teamId: Long?) {
+    /**
+     * Select a team by the [teamId] **if it's not selected yet**.
+     */
+    fun selectDefault(teamId: Long?): Item? {
         if (teamId == null || selected != null)
-            return
-        selectTeam(teamId)
+            return null
+        return selectTeam(teamId)
     }
 
+    /**
+     * Select a team of the [Team.TYPE_CLASS] type.
+     */
     fun selectTeamClass() {
         select(items.singleOrNull {
             it.tag is Team && it.tag.type == Team.TYPE_CLASS
@@ -110,12 +105,12 @@ class TeamDropdown : TextInputDropDown {
      * Get the currently selected team.
      * ### Returns:
      * - null if no valid team is selected
-     * - [Long] - the team's ID
+     * - [Team] - the selected team
      */
-    fun getSelected(): Any? {
+    fun getSelected(): Team? {
         return when (selected?.tag) {
             -1L -> null
-            is Long -> selected?.tag as Long
+            is Team -> selected?.tag as Team
             else -> null
         }
     }

app/src/main/java/pl/szczodrzynski/edziennik/ui/modules/views/TimeDropdown.kt

@@ -175,7 +175,7 @@ class TimeDropdown : TextInputDropDown {
         return !noTimetable
     }
 
-    fun pickerDialog() {
+    private fun pickerDialog() {
         val time = (getSelected() as? Pair<*, *>)?.first as? Time ?: Time.getNow()
 
         MaterialTimePicker.Builder()

app/src/main/java/pl/szczodrzynski/edziennik/utils/TextInputDropDown.kt

@@ -33,7 +33,7 @@ open class TextInputDropDown : TextInputEditText {
     val selectedId
         get() = selected?.id
 
-    fun updateText() {
+    private fun updateText() {
         setText(selected?.displayText ?: selected?.text)
     }