Update Main.kt
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OTKUSteyler
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1 changed files with 91 additions and 210 deletions
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@ -1,228 +1,109 @@
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package GoonXposed.xposed.modules.appearance
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package GoonXposed.xposed
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import android.content.res.AssetManager
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import android.graphics.Typeface
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import android.graphics.Typeface.CustomFallbackBuilder
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import android.graphics.fonts.Font
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import android.graphics.fonts.FontFamily
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import android.os.Build
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import de.robv.android.xposed.XC_MethodHook.MethodHookParam
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import de.robv.android.xposed.XC_MethodReplacement
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import de.robv.android.xposed.XposedHelpers
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import android.app.Activity
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import android.content.Context
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import android.content.ContextWrapper
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import android.os.Bundle
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import de.robv.android.xposed.IXposedHookLoadPackage
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import de.robv.android.xposed.IXposedHookZygoteInit
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import de.robv.android.xposed.callbacks.XC_LoadPackage
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import GoonXposed.xposed.Constants
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import GoonXposed.xposed.Module
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import GoonXposed.xposed.Utils.Companion.JSON
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import GoonXposed.xposed.Utils.Log
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import GoonXposed.xposed.asDir
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import GoonXposed.xposed.asFile
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import io.ktor.client.*
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import io.ktor.client.call.*
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import io.ktor.client.engine.cio.*
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import io.ktor.client.plugins.*
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import io.ktor.client.request.*
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import io.ktor.client.statement.*
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import io.ktor.http.*
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import kotlinx.coroutines.*
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import kotlinx.serialization.Serializable
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import kotlinx.serialization.json.JsonObjectBuilder
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import kotlinx.serialization.json.put
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import java.io.File
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import java.io.IOException
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import GoonXposed.xposed.modules.*
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import GoonXposed.xposed.modules.appearance.FontsModule
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import GoonXposed.xposed.modules.appearance.SysColorsModule
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import GoonXposed.xposed.modules.appearance.ThemesModule
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import GoonXposed.xposed.modules.bridge.AdditionalBridgeMethodsModule
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import GoonXposed.xposed.modules.bridge.BridgeModule
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import GoonXposed.xposed.modules.no_track.BlockCrashReportingModule
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import GoonXposed.xposed.modules.no_track.BlockDeepLinksTrackingModule
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import GoonXposed.xposed.modules.LogBox.*
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import kotlinx.coroutines.CompletableDeferred
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@Serializable
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data class FontDefinition(
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val name: String? = null,
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val description: String? = null,
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val spec: Int? = null,
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val main: Map<String, String>,
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)
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object HookStateHolder {
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/**
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* Whether all hooks are completed, and we are ready to load the JS bundle.
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*/
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val readyDeferred = CompletableDeferred<Unit>()
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object FontsModule : Module() {
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private val EXTENSIONS = arrayOf("", "_bold", "_italic", "_bold_italic")
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private val FILE_EXTENSIONS = arrayOf(".ttf", ".otf")
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private const val FONTS_ASSET_PATH = "fonts/"
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/**
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* Whether we have successfully received a [Context] yet.
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* Sometimes the app process is recreated and Xposed hooks way too late for us to get [Context] from [ContextWrapper.attachBaseContext].
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* But since Xposed hooks before [Activity.onCreate], we can still get it from there and still initialize properly.
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*/
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@Volatile
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var gotContext = false
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}
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private lateinit var fontsDir: File
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private lateinit var fontsDownloadsDir: File
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private var fontsAbsPath: String? = null
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class Main : Module(), IXposedHookLoadPackage, IXposedHookZygoteInit {
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private var hooked = false
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private val modules = mutableListOf(
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HookScriptLoaderModule,
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BridgeModule,
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AdditionalBridgeMethodsModule,
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PluginsModule(),
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UpdaterModule,
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FixResourcesModule,
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BlockDeepLinksTrackingModule,
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BlockCrashReportingModule,
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LogBoxModule,
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CacheModule,
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PerfPatchesModule,
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FontsModule,
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ThemesModule,
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SysColorsModule
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)
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override fun buildPayload(builder: JsonObjectBuilder) {
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builder.apply {
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put("fontPatch", 2)
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}
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init {
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modules += PayloadGlobalModule(modules)
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}
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override fun onLoad(packageParam: XC_LoadPackage.LoadPackageParam) = with(packageParam) {
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XposedHelpers.findAndHookMethod(
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"com.facebook.react.common.assets.ReactFontManager\$Companion",
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classLoader,
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"createAssetTypeface",
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String::class.java,
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Int::class.java,
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"android.content.res.AssetManager",
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object : XC_MethodReplacement() {
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override fun replaceHookedMethod(param: MethodHookParam): Typeface? {
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val fontFamilyName: String = param.args[0].toString()
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val style: Int = param.args[1] as Int
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val assetManager: AssetManager = param.args[2] as AssetManager
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return createAssetTypeface(fontFamilyName, style, assetManager)
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}
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})
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val fontDefFile = File(appInfo.dataDir, "${Constants.FILES_DIR}/fonts.json").apply { asFile() }
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if (!fontDefFile.exists()) return@with
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val fontDef = try {
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JSON.decodeFromString<FontDefinition>(fontDefFile.readText())
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} catch (_: Throwable) {
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return@with
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}
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val fontName = fontDef.name ?: return@with
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fontsDownloadsDir = File(appInfo.dataDir, "${Constants.FILES_DIR}/downloads/fonts").apply { asDir() }
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fontsDir = File(fontsDownloadsDir, fontName).apply { asDir() }
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fontsAbsPath = fontsDir.absolutePath + "/"
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fontsDir.listFiles()?.forEach { file ->
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val fileName = file.name
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if (!fileName.startsWith(".")) {
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val fontName = fileName.split('.')[0]
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if (fontDef.main.keys.none { it == fontName }) {
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Log.i("Deleting font file: $fileName")
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file.delete()
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}
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}
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}
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// These files should be downloaded by the JS side, but oh well
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CoroutineScope(Dispatchers.IO).launch {
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fontDef.main.keys.map { name ->
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async {
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val url = fontDef.main.getValue(name)
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try {
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Log.i("Downloading $name from $url")
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val file =
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File(fontsDir, "$name${FILE_EXTENSIONS.first { url.endsWith(it) }}").apply { asFile() }
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if (file.exists()) return@async
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val client = HttpClient(CIO) {
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install(UserAgent) { agent = Constants.USER_AGENT }
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}
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val response: HttpResponse = client.get(url)
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if (response.status == HttpStatusCode.OK) file.writeBytes(response.body())
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return@async
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} catch (e: Throwable) {
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Log.e("Failed to download fonts ($name from $url)", e)
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}
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}
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}.awaitAll()
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}
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override fun initZygote(startupParam: IXposedHookZygoteInit.StartupParam) {
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for (module in modules) module.onInit(startupParam)
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}
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private fun splitFontName(fontFamilyName: String): Pair<String, String> {
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val parts = fontFamilyName.split(":")
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return if (parts.size >= 2) parts[0] to parts[1] else "" to fontFamilyName
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override fun handleLoadPackage(param: XC_LoadPackage.LoadPackageParam) = with(param) {
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if (hooked) return
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val reactActivity = classLoader.loadClass(Constants.TARGET_ACTIVITY)
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ContextWrapper::class.java.hookMethod("attachBaseContext", Context::class.java) {
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after {
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val ctx = args[0] as Context
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HookStateHolder.gotContext = true
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Log.i("Received Context")
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this@Main.onContext(ctx)
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}
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}
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reactActivity.hookMethod("onCreate", Bundle::class.java) {
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after {
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val act = thisObject as Activity
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Log.i("Received Activity")
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if (!HookStateHolder.gotContext) {
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Log.w("Activity created before we got Context, process may have been recreated!")
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this@Main.onContext(act.applicationContext)
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}
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this@Main.onActivity(act)
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HookStateHolder.readyDeferred.complete(Unit)
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}
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}
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this@Main.onLoad(param)
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hooked = true
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}
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private fun fontFileFor(customName: String, refName: String, fileExtension: String): File =
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if (customName.isEmpty()) File(fontsDownloadsDir, "$refName.$fileExtension")
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else File(fontsDownloadsDir, "$customName/$refName.$fileExtension")
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private fun createAssetTypefaceWithFallbacks(
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fontFamilyNames: Array<String>, style: Int, assetManager: AssetManager
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): Typeface? {
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val fontFamilies: MutableList<FontFamily> = ArrayList()
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
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for (fontFamilyName in fontFamilyNames) {
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try {
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for (fileExtension in FILE_EXTENSIONS) {
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val (customName, refName) = splitFontName(fontFamilyName)
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val file = fontFileFor(customName, refName, fileExtension).apply { asFile() }
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val font = Font.Builder(file).build()
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val family = FontFamily.Builder(font).build()
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fontFamilies.add(family)
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}
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} catch (_: Throwable) {
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}
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for (fontRootPath in arrayOf(fontsAbsPath, FONTS_ASSET_PATH).filterNotNull()) {
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for (fileExtension in FILE_EXTENSIONS) {
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val fileName =
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StringBuilder().append(fontRootPath).append(fontFamilyName).append(fileExtension).toString()
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try {
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val builder = if (fileName[0] == '/') Font.Builder(File(fileName)) else Font.Builder(
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assetManager, fileName
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)
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val font = builder.build()
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val family = FontFamily.Builder(font).build()
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fontFamilies.add(family)
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} catch (_: RuntimeException) {
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continue
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} catch (_: IOException) {
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continue
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}
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}
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}
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}
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if (fontFamilies.isEmpty()) return createAssetTypeface(fontFamilyNames[0], style, assetManager)
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val fallbackBuilder = CustomFallbackBuilder(fontFamilies[0])
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for (i in 1 until fontFamilies.size) {
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fallbackBuilder.addCustomFallback(fontFamilies[i])
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}
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return fallbackBuilder.build()
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}
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return null
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override fun onLoad(packageParam: XC_LoadPackage.LoadPackageParam) {
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for (module in modules) module.onLoad(packageParam)
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}
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private fun createAssetTypeface(
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fontFamilyName: String, style: Int, assetManager: AssetManager
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): Typeface? {
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var fontFamilyName: String = fontFamilyName
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val fontFamilyNames = fontFamilyName.split(",".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
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for (i in fontFamilyNames.indices) {
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fontFamilyNames[i] = fontFamilyNames[i].trim()
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}
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override fun onContext(context: Context) {
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for (module in modules) module.onContext(context)
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}
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if (fontFamilyNames.size > 1) {
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fontFamilyName = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
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return createAssetTypefaceWithFallbacks(fontFamilyNames, style, assetManager)
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} else {
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fontFamilyNames[0]
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}
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}
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val extension = EXTENSIONS[style]
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try {
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for (fileExtension in FILE_EXTENSIONS) {
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val (customName, refName) = splitFontName(fontFamilyName)
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val file = fontFileFor(customName, refName, fileExtension).apply { asFile() }
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if (!file.exists()) throw Exception()
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return Typeface.createFromFile(file.absolutePath)
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}
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} catch (_: Throwable) {
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}
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for (fontRootPath in arrayOf(fontsAbsPath, FONTS_ASSET_PATH).filterNotNull()) {
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for (fileExtension in FILE_EXTENSIONS) {
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val fileName =
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StringBuilder().append(fontRootPath).append(fontFamilyName).append(extension).append(fileExtension)
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.toString()
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return try {
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if (fileName[0] == '/') Typeface.createFromFile(fileName)
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else Typeface.createFromAsset(assetManager, fileName)
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} catch (_: RuntimeException) {
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continue
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}
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}
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}
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return Typeface.create(fontFamilyName, style)
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override fun onActivity(activity: Activity) {
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for (module in modules) module.onActivity(activity)
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}
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}
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