Support themed icons for 3rd party icon packs (#3091)

Co-authored-by: Goooler <wangzongler@gmail.com>

lawnchair/res/values/config.xml

@@ -32,6 +32,12 @@
         <item>org.withouthat.acalendar</item>
         <item>ws.xsoh.etar</item>
     </string-array>
+    <string-array name="themed_icon_packs" translatable="false">
+        <!-- The package will working when lawnicons fully converted as iconpack-->
+        <item>com.lawnchair.lawnicons</item>
+        <item>com.donnnno.arcticons</item>
+        <item>com.whicons.iconpack</item>
+    </string-array>
     <string name="clock_component_name" translatable="false">com.google.android.deskclock/com.android.deskclock.DeskClock</string>
     <string name="launcher_activity_logic_class" translatable="false">app.lawnchair.LauncherActivityCachingLogic</string>
     <string name="main_process_initializer_class" translatable="false">app.lawnchair.LawnchairProcessInitializer</string>

lawnchair/src/app/lawnchair/icons/IconPackProvider.kt

@@ -1,5 +1,6 @@
 package app.lawnchair.icons
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.content.pm.PackageManager
 import android.graphics.drawable.Drawable
@@ -8,11 +9,22 @@ import android.os.Process
 import android.os.UserHandle
 import com.android.launcher3.icons.ClockDrawableWrapper
 import com.android.launcher3.util.MainThreadInitializedObject
+import com.android.launcher3.icons.R
+import android.graphics.drawable.InsetDrawable
+import android.graphics.drawable.AdaptiveIconDrawable
+import app.lawnchair.icons.CustomAdaptiveIconDrawable
+import com.android.launcher3.icons.ThemedIconDrawable
+import android.graphics.drawable.ColorDrawable
+import app.lawnchair.icons.*
+import app.lawnchair.util.Constants.LAWNICONS_PACKAGE_NAME
+
+
 
 class IconPackProvider(private val context: Context) {
 
     private val systemIconPack = SystemIconPack(context)
     private val iconPacks = mutableMapOf<String, IconPack?>()
+    private val themedIconPacks = context.resources.getStringArray(R.array.themed_icon_packs)
 
     fun getIconPackOrSystem(packageName: String): IconPack? {
         if (packageName.isEmpty()) return systemIconPack
@@ -41,6 +53,24 @@ class IconPackProvider(private val context: Context) {
         val iconPack = getIconPackOrSystem(iconEntry.packPackageName) ?: return null
         iconPack.loadBlocking()
         val drawable = iconPack.getIcon(iconEntry, iconDpi) ?: return null
+        if (
+            context.isThemedIconsEnabled() && iconEntry.packPackageName in themedIconPacks
+        ) {
+            val themedColors: IntArray = ThemedIconDrawable.getThemedColors(context)
+            val res = context.packageManager.getResourcesForApplication(iconEntry.packPackageName)
+            @SuppressLint("DiscouragedApi")
+            val resId = res.getIdentifier(iconEntry.name, "drawable", iconEntry.packPackageName)
+            val bg: Drawable = ColorDrawable(themedColors[0])
+            val td = ThemedIconDrawable.ThemeData(res, iconEntry.packPackageName, resId)
+            val fg = td.wrapDrawable(drawable, 0)
+            return if (fg is AdaptiveIconDrawable) {
+                val foregroundDr = fg.foreground.apply { setTint(themedColors[1]) }
+                CustomAdaptiveIconDrawable(bg, foregroundDr)
+            } else {
+                val iconFromPack = InsetDrawable(drawable, .3f).apply { setTint(themedColors[1]) }
+                td.wrapDrawable(CustomAdaptiveIconDrawable(bg, iconFromPack), 0)
+            }
+        }
         val clockMetadata = if (user == Process.myUserHandle()) iconPack.getClock(iconEntry) else null
         if (clockMetadata != null) {
             val clockDrawable = ClockDrawableWrapper.forMeta(Build.VERSION.SDK_INT, clockMetadata) {

lawnchair/src/app/lawnchair/ui/preferences/IconPackPreferences.kt

@@ -56,7 +56,6 @@ import app.lawnchair.preferences.PreferenceAdapter
 import app.lawnchair.preferences.getAdapter
 import app.lawnchair.preferences.preferenceManager
 import app.lawnchair.ui.preferences.components.*
-import app.lawnchair.util.Constants
 import app.lawnchair.util.isPackageInstalled
 import com.android.launcher3.R
 import com.google.accompanist.drawablepainter.rememberDrawablePainter
@@ -134,8 +133,9 @@ fun IconPackPreferences() {
                 modifier = Modifier.padding(bottom = 8.dp),
             )
             PreferenceGroup {
-                val themedIconsAvailable = LocalContext.current.packageManager
-                    .isPackageInstalled(Constants.LAWNICONS_PACKAGE_NAME)
+                val themedIconsAvailable = LocalContext.current.resources
+                    .getStringArray(R.array.themed_icon_packs)
+                    .any { LocalContext.current.packageManager.isPackageInstalled(it) }
                 ListPreference(
                     enabled = themedIconsAvailable,
                     label = stringResource(id = R.string.themed_icon_title),