Add accent customization

Add the ability to customize the accent.

app/build.gradle

@@ -94,6 +94,8 @@ dependencies {
     // Fast-Scroll
     implementation 'com.reddit:indicator-fast-scroll:1.3.0'
 
+    implementation 'com.afollestad.material-dialogs:core:3.3.0'
+
     // --- DEV ---
 
     // Lint

app/proguard-rules.pro

@@ -20,4 +20,6 @@
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
 
--dontobfuscate
+-dontobfuscate
+
+-keep class org.oxycblt.auxio.settings.SettingListFragment

app/src/main/java/org/oxycblt/auxio/MainActivity.kt

@@ -22,6 +22,8 @@ class MainActivity : AppCompatActivity(R.layout.activity_main), SettingsManager.
             settingsManager.getTheme()
         )
 
+        accent = settingsManager.getAccent()
+
         // Apply the theme
         setTheme(accent.second)
 
@@ -50,7 +52,11 @@ class MainActivity : AppCompatActivity(R.layout.activity_main), SettingsManager.
         SettingsManager.getInstance().removeCallback(this)
     }
 
-    override fun onThemeUpdate(value: Int) {
-        AppCompatDelegate.setDefaultNightMode(value)
+    override fun onThemeUpdate(newTheme: Int) {
+        AppCompatDelegate.setDefaultNightMode(newTheme)
+    }
+
+    override fun onAccentUpdate(newAccent: Pair<Int, Int>) {
+        recreate()
     }
 }

app/src/main/java/org/oxycblt/auxio/settings/SettingListFragment.kt

@@ -1,11 +1,99 @@
 package org.oxycblt.auxio.settings
 
 import android.os.Bundle
+import android.util.Log
+import android.view.View
+import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.afollestad.materialdialogs.MaterialDialog
+import com.afollestad.materialdialogs.customview.customView
 import org.oxycblt.auxio.R
+import org.oxycblt.auxio.settings.adapters.AccentAdapter
+import org.oxycblt.auxio.ui.ACCENTS
+import org.oxycblt.auxio.ui.accent
+import org.oxycblt.auxio.ui.getAccentItemSummary
+
+class SettingListFragment : PreferenceFragmentCompat(), SettingsManager.Callback {
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        findPreference<Preference>(SettingsManager.Keys.KEY_ACCENT)?.apply {
+            onPreferenceClickListener = Preference.OnPreferenceClickListener {
+                showAccentDialog()
+                true
+            }
+
+            summary = getAccentItemSummary(requireActivity(), accent)
+        }
+
+        Log.d(this::class.simpleName, "Fragment created.")
+    }
 
-class SettingListFragment : PreferenceFragmentCompat() {
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         setPreferencesFromResource(R.xml.prefs_main, rootKey)
     }
+
+    override fun onResume() {
+        super.onResume()
+
+        SettingsManager.getInstance().addCallback(this)
+    }
+
+    override fun onPause() {
+        super.onPause()
+
+        SettingsManager.getInstance().removeCallback(this)
+    }
+
+    private fun showAccentDialog() {
+        MaterialDialog(requireActivity()).show {
+            title(R.string.label_settings_accent)
+
+            // Roll my own RecyclerView since [To no surprise whatsoever] Material Dialogs
+            // has a bug where ugly dividers will show with the RecyclerView even if you disable them.
+            // This is why I hate using third party libraries.
+            val recycler = RecyclerView(requireContext()).apply {
+                adapter = AccentAdapter {
+                    if (it.first != accent.first) {
+                        SettingsManager.getInstance().setAccent(it)
+                    }
+
+                    this@show.dismiss()
+                }
+
+                post {
+                    // Combine the width of the recyclerview with the width of an item in order
+                    // to center the currently selected accent.
+                    val childWidth = getChildAt(0).width / 2
+
+                    (layoutManager as LinearLayoutManager)
+                        .scrollToPositionWithOffset(
+                            ACCENTS.indexOf(accent),
+                            (width / 2) - childWidth
+                        )
+                }
+
+                layoutManager = LinearLayoutManager(
+                    requireContext()
+                ).also { it.orientation = LinearLayoutManager.HORIZONTAL }
+            }
+
+            customView(view = recycler)
+
+            view.invalidateDividers(showTop = false, showBottom = false)
+
+            negativeButton(android.R.string.cancel)
+
+            show()
+        }
+    }
+
+    override fun onAccentUpdate(newAccent: Pair<Int, Int>) {
+        findPreference<Preference>(getString(R.string.label_settings_accent))?.apply {
+            summary = getAccentItemSummary(requireActivity(), accent)
+        }
+    }
 }

app/src/main/java/org/oxycblt/auxio/settings/SettingsManager.kt

@@ -5,6 +5,7 @@ import android.content.SharedPreferences
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.preference.PreferenceManager
 import org.oxycblt.auxio.recycler.SortMode
+import org.oxycblt.auxio.ui.ACCENTS
 
 /**
  * Wrapper around the [SharedPreferences] class that writes & reads values without a context.
@@ -30,6 +31,39 @@ class SettingsManager private constructor(context: Context) : SharedPreferences.
         callbacks.remove(callback)
     }
 
+    fun getTheme(): Int {
+        // Turn the string from SharedPreferences into an actual theme value that can
+        // be used, as apparently the preference system provided by androidx doesn't like integers
+        // for some...reason.
+        return when (sharedPrefs.getString(Keys.KEY_THEME, Theme.THEME_AUTO)) {
+            Theme.THEME_AUTO -> AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
+            Theme.THEME_LIGHT -> AppCompatDelegate.MODE_NIGHT_NO
+            Theme.THEME_DARK -> AppCompatDelegate.MODE_NIGHT_YES
+
+            else -> AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
+        }
+    }
+
+    fun getAccent(): Pair<Int, Int> {
+        val accentIndex = sharedPrefs.getInt(Keys.KEY_ACCENT, 5)
+
+        return ACCENTS[accentIndex]
+    }
+
+    fun setAccent(accent: Pair<Int, Int>) {
+        val accentIndex = ACCENTS.indexOf(accent)
+
+        check(accentIndex != -1) { "Invalid accent" }
+
+        sharedPrefs.edit()
+            .putInt(Keys.KEY_ACCENT, accentIndex)
+            .apply()
+
+        callbacks.forEach {
+            it.onAccentUpdate(getAccent())
+        }
+    }
+
     fun setLibrarySortMode(sortMode: SortMode) {
         sharedPrefs.edit()
             .putInt(Keys.KEY_LIBRARY_SORT_MODE, sortMode.toConstant())
@@ -45,18 +79,7 @@ class SettingsManager private constructor(context: Context) : SharedPreferences.
         ) ?: SortMode.ALPHA_DOWN
     }
 
-    fun getTheme(): Int {
-        // Turn the string from SharedPreferences into an actual theme value that can
-        // be used, as apparently the preference system provided by androidx doesn't like integers
-        // for some...reason.
-        return when (sharedPrefs.getString(Keys.KEY_THEME, Theme.THEME_AUTO)) {
-            Theme.THEME_AUTO -> AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
-            Theme.THEME_LIGHT -> AppCompatDelegate.MODE_NIGHT_NO
-            Theme.THEME_DARK -> AppCompatDelegate.MODE_NIGHT_YES
-
-            else -> AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
-        }
-    }
+    // --- OVERRIDES ---
 
     override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
         when (key) {
@@ -100,6 +123,7 @@ class SettingsManager private constructor(context: Context) : SharedPreferences.
     object Keys {
         const val KEY_LIBRARY_SORT_MODE = "KEY_LIBRARY_SORT_MODE"
         const val KEY_THEME = "KEY_THEME"
+        const val KEY_ACCENT = "KEY_ACCENT"
     }
 
     private object Theme {
@@ -113,6 +137,7 @@ class SettingsManager private constructor(context: Context) : SharedPreferences.
      * [SharedPreferences.OnSharedPreferenceChangeListener].
      */
     interface Callback {
-        fun onThemeUpdate(value: Int) {}
+        fun onThemeUpdate(newTheme: Int) {}
+        fun onAccentUpdate(newAccent: Pair<Int, Int>) {}
     }
 }

app/src/main/java/org/oxycblt/auxio/settings/adapters/AccentAdapter.kt

@@ -0,0 +1,54 @@
+package org.oxycblt.auxio.settings.adapters
+
+import android.content.res.ColorStateList
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import org.oxycblt.auxio.R
+import org.oxycblt.auxio.databinding.ItemAccentBinding
+import org.oxycblt.auxio.ui.ACCENTS
+import org.oxycblt.auxio.ui.accent
+import org.oxycblt.auxio.ui.toColor
+
+class AccentAdapter(
+    private val doOnAccentConfirm: (accent: Pair<Int, Int>) -> Unit
+) : RecyclerView.Adapter<AccentAdapter.ViewHolder>() {
+    override fun getItemCount(): Int = ACCENTS.size
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        return ViewHolder(ItemAccentBinding.inflate(LayoutInflater.from(parent.context)))
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(ACCENTS[position])
+    }
+
+    inner class ViewHolder(
+        private val binding: ItemAccentBinding
+    ) : RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(accentData: Pair<Int, Int>) {
+            binding.accent.setOnClickListener {
+                Log.d(this::class.simpleName, accentData.toString())
+                doOnAccentConfirm(accentData)
+            }
+
+            binding.accent.apply {
+                imageTintList = if (accentData.first != accent.first) {
+                    ColorStateList.valueOf(
+                        android.R.color.transparent.toColor(context)
+                    )
+                } else {
+                    ColorStateList.valueOf(
+                        R.color.background.toColor(context)
+                    )
+                }
+
+                backgroundTintList = ColorStateList.valueOf(
+                    accentData.first.toColor(context)
+                )
+            }
+        }
+    }
+}

app/src/main/java/org/oxycblt/auxio/ui/ThemeUtils.kt

@@ -8,11 +8,12 @@ import androidx.annotation.ColorRes
 import androidx.core.content.ContextCompat
 import androidx.core.graphics.ColorUtils
 import org.oxycblt.auxio.R
+import java.util.Locale
 
 // Functions for managing colors/accents/whatever.
 
 // Pairs of the base accent and its theme
-private val ACCENTS = listOf(
+val ACCENTS = listOf(
     Pair(R.color.red, R.style.Theme_Red), // 0
     Pair(R.color.pink, R.style.Theme_Pink), // 1
     Pair(R.color.purple, R.style.Theme_Purple), // 2
@@ -34,7 +35,7 @@ private val ACCENTS = listOf(
     Pair(R.color.blue_grey, R.style.Theme_BlueGrey) // 18
 )
 
-val accent = ACCENTS[5]
+lateinit var accent: Pair<Int, Int>
 
 /**
  * Gets the transparent form of a color.
@@ -96,3 +97,8 @@ fun resolveAttr(context: Context, @AttrRes attr: Int): Int {
 
     return color.toColor(context)
 }
+
+fun getAccentItemSummary(context: Context, newAccent: Pair<Int, Int>): String {
+    return context.resources.getResourceEntryName(newAccent.first)
+        .replace("_", " ").capitalize(Locale.getDefault())
+}

app/src/main/res/drawable/ic_accent.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="?attr/colorPrimary"
+        android:pathData="M12,3c-4.97,0 -9,4.03 -9,9s4.03,9 9,9c0.83,0 1.5,-0.67 1.5,-1.5 0,-0.39 -0.15,-0.74 -0.39,-1.01 -0.23,-0.26 -0.38,-0.61 -0.38,-0.99 0,-0.83 0.67,-1.5 1.5,-1.5L16,16c2.76,0 5,-2.24 5,-5 0,-4.42 -4.03,-8 -9,-8zM6.5,12c-0.83,0 -1.5,-0.67 -1.5,-1.5S5.67,9 6.5,9 8,9.67 8,10.5 7.33,12 6.5,12zM9.5,8C8.67,8 8,7.33 8,6.5S8.67,5 9.5,5s1.5,0.67 1.5,1.5S10.33,8 9.5,8zM14.5,8c-0.83,0 -1.5,-0.67 -1.5,-1.5S13.67,5 14.5,5s1.5,0.67 1.5,1.5S15.33,8 14.5,8zM17.5,12c-0.83,0 -1.5,-0.67 -1.5,-1.5S16.67,9 17.5,9s1.5,0.67 1.5,1.5 -0.67,1.5 -1.5,1.5z" />
+</vector>

app/src/main/res/drawable/ic_check.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="@color/background">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M9,16.17L4.83,12l-1.42,1.41L9,19 21,7l-1.41,-1.41z"/>
+</vector>

app/src/main/res/drawable/ui_circle.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape android:shape="oval"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+    <size
+        android:width="48dp"
+        android:height="48dp" />
+    <solid
+        android:color="@android:color/white" />
+</shape>

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

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+    <data>
+
+    </data>
+
+    <FrameLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:padding="@dimen/margin_mid_small">
+        <ImageButton
+            android:id="@+id/accent"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:padding="@dimen/margin_medium"
+            android:scaleType="fitCenter"
+            android:background="@drawable/ui_circular_button"
+            android:src="@drawable/ic_check"
+            tools:backgroundTint="?attr/colorPrimary"
+            tools:ignore="contentDescription" />
+
+    </FrameLayout>
+</layout>

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

@@ -5,6 +5,7 @@
         <item>@string/label_settings_theme_light</item>
         <item>@string/label_settings_theme_dark</item>
     </array>
+
     <array name="theme_values">
         <item>AUTO</item>
         <item>LIGHT</item>

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

@@ -34,6 +34,7 @@
     <string name="label_settings_theme_light">Light</string>
     <string name="label_settings_theme_dark">Dark</string>
     <string name="label_settings_theme_choose">Choose theme</string>
+    <string name="label_settings_accent">Accent</string>
 
     <!-- Debug Namespace | Debug labels -->
     <string name="debug_state_saved">State saved</string>

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

@@ -13,6 +13,12 @@
         <item name="colorControlNormal">@color/control_color</item>
         <item name="alertDialogTheme">@style/Theme.CustomDialog</item>
         <item name="indicatorFastScrollerStyle">@style/FastScrollTheme</item>
+
+        <item name="md_divider_color">@android:color/transparent</item>
+        <item name="md_background_color">@color/background</item>
+        <item name="md_corner_radius">0dp</item>
+        <item name="md_color_button_text">@color/control_color</item>
+        <item name="md_font_title">@font/inter_black</item>
     </style>
 
     <!-- Hack to fix the weird icon/underline with LibraryFragment's SearchView -->
@@ -56,6 +62,7 @@
         <item name="android:windowTitleStyle">@style/TextAppearance.Dialog.Title</item>
         <item name="colorPrimary">@color/control_color</item>
         <item name="colorSecondary">@color/control_color</item>
+        <item name="dialogCornerRadius">0dp</item>
     </style>
 
     <style name="TextAppearance.Dialog.Title" parent="@android:style/TextAppearance.Material.Title">

app/src/main/res/xml/prefs_main.xml

@@ -11,5 +11,12 @@
             android:entries="@array/theme_entries"
             android:entryValues="@array/theme_values"
             app:useSimpleSummaryProvider="true" />
+
+        <Preference
+            app:key="KEY_ACCENT"
+            android:title="@string/label_settings_accent"
+            android:icon="@drawable/ic_accent"
+            app:summary="@string/label_settings_accent"
+            app:enableCopying="true" />
     </PreferenceCategory>
 </PreferenceScreen>