WIP prefs: implement emoji preference

app/src/main/java/com/keylesspalace/tusky/components/preference/EmojiSelector.kt

@@ -11,8 +11,6 @@ import android.view.View
 import android.widget.RadioButton
 import android.widget.Toast
 import androidx.appcompat.app.AlertDialog
-import androidx.preference.Preference
-import androidx.preference.PreferenceManager
 import com.keylesspalace.tusky.MainActivity
 import com.keylesspalace.tusky.R
 import com.keylesspalace.tusky.databinding.DialogEmojicompatBinding
@@ -31,34 +29,35 @@ import okhttp3.OkHttpClient
 import kotlin.system.exitProcess
 
 /**
- * This Preference lets the user select their preferred emoji font
+ * This selector lets the user select their preferred emoji font.
+ * It will also handle the downloading.
  */
-class EmojiPreference(
-    context: Context,
-    private val okHttpClient: OkHttpClient
-) : Preference(context) {
-
-    private lateinit var selected: EmojiCompatFont
-    private lateinit var original: EmojiCompatFont
+class EmojiSelector(
+    private val context: Context,
+    private val okHttpClient: OkHttpClient,
+    initialSelectedFontId: Int,
+    private val saveSelectedId: (Int) -> Unit
+) {
+
+    private var selected: EmojiCompatFont
+    private var original: EmojiCompatFont
     private val radioButtons = mutableListOf<RadioButton>()
     private var updated = false
     private var currentNeedsUpdate = false
 
     private val downloadDisposables = MutableList<Disposable?>(FONTS.size) { null }
 
-    override fun onAttachedToHierarchy(preferenceManager: PreferenceManager) {
-        super.onAttachedToHierarchy(preferenceManager)
-
+    init {
         // Find out which font is currently active
-        selected = EmojiCompatFont.byId(
-            PreferenceManager.getDefaultSharedPreferences(context).getInt(key, 0)
-        )
+        selected = EmojiCompatFont.byId(initialSelectedFontId)
         // We'll use this later to determine if anything has changed
         original = selected
-        summary = selected.getDisplay(context)
     }
 
-    override fun onClick() {
+    val summary: String
+        get() = selected.getDisplay(context)
+
+    fun showSelectionDialog() {
         val binding = DialogEmojicompatBinding.inflate(LayoutInflater.from(context))
 
         setupItem(BLOBMOJI, binding.itemBlobmoji)
@@ -194,12 +193,7 @@ class EmojiPreference(
     private fun saveSelectedFont() {
         val index = selected.id
         Log.i(TAG, "saveSelectedFont: Font ID: $index")
-        PreferenceManager
-            .getDefaultSharedPreferences(context)
-            .edit()
-            .putInt(key, index)
-            .apply()
-        summary = selected.getDisplay(context)
+        saveSelectedId(selected.id)
     }
 
     /**

app/src/main/java/com/keylesspalace/tusky/components/preference/PreferencesFragment.kt

@@ -29,6 +29,7 @@ import com.keylesspalace.tusky.settings.AppTheme
 import com.keylesspalace.tusky.settings.PrefData
 import com.keylesspalace.tusky.settings.PrefStore
 import com.keylesspalace.tusky.settings.PreferenceOption
+import com.keylesspalace.tusky.settings.customListPreference
 import com.keylesspalace.tusky.settings.getBlocking
 import com.keylesspalace.tusky.settings.listPreference
 import com.keylesspalace.tusky.settings.makePreferenceScreen
@@ -98,6 +99,20 @@ class PreferencesFragment : Fragment(), Injectable {
                 ) {
                     updatePrefs { data -> data.copy(appTheme = it) }
                 }
+
+                val emojiSelector = EmojiSelector(context, okhttpclient, prefs.emojiFont) {
+                    updatePrefs { data -> data.copy(emojiFont = it) }
+                }
+                customListPreference(
+                    getString(R.string.emoji_style),
+                    {
+                        emojiSelector.summary
+                    },
+                    {
+                        emojiSelector.showSelectionDialog()
+                    }
+                )
+
                 val languageNames = resources.getStringArray(R.array.language_entries)
                 val languageValues = resources.getStringArray(R.array.language_values)
                 val languageOptions = languageNames

app/src/main/java/com/keylesspalace/tusky/settings/SettingsDSL.kt

@@ -160,7 +160,6 @@ fun PreferenceParent.switchPreference(
     addPref(layout)
 }
 
-
 data class PreferenceOption<T>(val name: String, val value: T)
 @Suppress("FunctionName")
 fun <T> PreferenceParent.PreferenceOption(pair: Pair<T, Int>): PreferenceOption<T> {
@@ -174,6 +173,53 @@ fun <T> PreferenceParent.listPreference(
     selected: () -> T,
     onSelection: (T) -> Unit,
 ) {
+    val (layout, summaryView, optionView) = makeListPreferenceLayout()
+    summaryView.text = title
+
+    registerUpdate {
+        val selectedOptionIndex = options.indexOfFirst { it.value == selected() }
+
+        optionView.setText(options[selectedOptionIndex].name)
+
+        layout.setOnClickListener {
+            AlertDialog.Builder(context)
+                .setSingleChoiceItems(
+                    options.map { it.name }.toTypedArray(),
+                    selectedOptionIndex,
+                ) { dialog, wh ->
+                    onSelection(options[wh].value)
+                    dialog.dismiss()
+                }
+                .setCancelable(true)
+                .show()
+        }
+    }
+}
+
+fun PreferenceParent.customListPreference(
+    title: String,
+    selected: () -> String,
+    onClick: () -> Unit
+) {
+    val (layout, summaryView, optionView) = makeListPreferenceLayout()
+    summaryView.text = title
+
+    layout.setOnClickListener {
+        onClick()
+    }
+
+    registerUpdate {
+        optionView.text = selected()
+    }
+}
+
+private data class ListPreferenceLayout(
+    val layout: LinearLayout,
+    val summaryView: TextView,
+    val optionView: TextView,
+)
+
+private fun PreferenceParent.makeListPreferenceLayout(): ListPreferenceLayout {
     val layout = itemLayout(context).apply {
         isClickable = true
         val outValue = TypedValue()
@@ -186,12 +232,11 @@ fun <T> PreferenceParent.listPreference(
     }
 
 
-    val titleView = TextView(context).apply {
-        text = title
+    val summaryView = TextView(context).apply {
         setTextAppearanceRef(android.R.attr.textAppearanceListItem)
         setTextColorRef(android.R.attr.textColorPrimary)
     }
-    linearLayout.addView(titleView)
+    linearLayout.addView(summaryView)
 
     val optionView = TextView(context)
     linearLayout.addView(optionView)
@@ -199,25 +244,7 @@ fun <T> PreferenceParent.listPreference(
     layout.addView(linearLayout)
 
     addPref(layout)
-
-    registerUpdate {
-        val selectedOptionIndex = options.indexOfFirst { it.value == selected() }
-
-        optionView.setText(options[selectedOptionIndex].name)
-
-        layout.setOnClickListener {
-            AlertDialog.Builder(context)
-                .setSingleChoiceItems(
-                    options.map { it.name }.toTypedArray(),
-                    selectedOptionIndex,
-                ) { dialog, wh ->
-                    onSelection(options[wh].value)
-                    dialog.dismiss()
-                }
-                .setCancelable(true)
-                .show()
-        }
-    }
+    return ListPreferenceLayout(layout, summaryView, optionView)
 }