Skip to content
This repository has been archived by the owner on Feb 6, 2024. It is now read-only.

Commit

Permalink
[Themes] Apply rawColors native-side (#6)
Browse files Browse the repository at this point in the history 
* [Themes] Apply `rawColors`

* [Themes] Do not pass `theme` on `getColor`

---------

Co-authored-by: Amsyar Rasyiq <[email protected]>
  • Loading branch information
@maisymoe @pylixonly
maisymoe and pylixonly authored Mar 22, 2023
1 parent bf21662 commit 7321ac1
Showing 1 changed file with 45 additions and 12 deletions.
57 changes: 45 additions & 12 deletions app/src/main/java/com/vendetta/xposed/Main.kt
View file
Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,10 @@ import android.content.res.XModuleResources
import android.util.Log
import de.robv.android.xposed.IXposedHookLoadPackage
import de.robv.android.xposed.IXposedHookZygoteInit
import de.robv.android.xposed.IXposedHookInitPackageResources
import de.robv.android.xposed.XC_MethodHook
import de.robv.android.xposed.XposedBridge
import de.robv.android.xposed.callbacks.XC_InitPackageResources
import de.robv.android.xposed.callbacks.XC_LoadPackage
import kotlinx.serialization.Serializable
import kotlinx.serialization.decodeFromString
Expand Down Expand Up @@ -49,15 +51,17 @@ data class Theme(
val data: ThemeData
)

class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
class Main : IXposedHookZygoteInit, IXposedHookLoadPackage, IXposedHookInitPackageResources {
private lateinit var modResources: XModuleResources
private val rawColorMap = mutableMapOf<String, Int>()

override fun initZygote(startupParam: IXposedHookZygoteInit.StartupParam) {
modResources = XModuleResources.createInstance(startupParam.modulePath, null)
}

fun hexStringToColorInt(hexString: String): Int {
val parsed = Color.parseColor(hexString)
// Convert 0xRRGGBBAA to 0XAARRGGBB
return parsed.takeIf { hexString.length == 7 } ?: parsed and 0xFFFFFF or (parsed ushr 24)
}

Expand All @@ -76,16 +80,28 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
}
}

fun createTempFileFromString(content: String): File {
val tempFile = File.createTempFile("eval_", ".js")
tempFile.writeText(content)
return tempFile
fun createTempEvalFile(content: String): File = File.createTempFile("eval_", ".js").also { it.writeText(content) }

override fun handleInitPackageResources(resparam: XC_InitPackageResources.InitPackageResourcesParam) {
if (resparam.packageName == "com.google.android.webview") return

// rawColorMap is initialized during handleLoadPackage
rawColorMap.forEach { (key, value) ->
try {
resparam.res.setReplacement("com.discord", "color", key, value)
} catch (_: Exception) {
Log.i("Vendetta", "No color resource with $key")
}
}
}

override fun handleLoadPackage(param: XC_LoadPackage.LoadPackageParam) {
if (param.packageName == "com.google.android.webview") return

val catalystInstanceImpl = param.classLoader.loadClass("com.facebook.react.bridge.CatalystInstanceImpl")
val resourceDrawableIdHelper = param.classLoader.loadClass("com.facebook.react.views.imagehelper.ResourceDrawableIdHelper")
val soundManagerModule = param.classLoader.loadClass("com.discord.sounds.SoundManagerModule")
val themeManager = param.classLoader.loadClass("com.discord.theme.utils.ColorUtilsKt")
val darkTheme = param.classLoader.loadClass("com.discord.theme.DarkTheme")
val lightTheme = param.classLoader.loadClass("com.discord.theme.LightTheme")

Expand Down Expand Up @@ -145,20 +161,37 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
// TODO: This is questionable
if (themeFile.exists()) {
val themeText = themeFile.readText()
if (themeText.length != 0 && themeText != "{}" && themeText != "null") {
if (themeText.isNotBlank() && themeText != "{}" && themeText != "null") {
val theme = Json { ignoreUnknownKeys = true }.decodeFromString<Theme>(themeText)

for ((key, value) in theme.data.semanticColors.orEmpty()) {

// Apply rawColors
theme.data.rawColors?.forEach { (key, value) -> rawColorMap[key.lowercase()] = hexStringToColorInt(value) }

// Apply semanticColors
theme.data.semanticColors?.forEach { (key, value) ->
// TEXT_NORMAL -> getTextNormal
val methodName = "get${key.split("_").joinToString("") { it.lowercase().replaceFirstChar { it.uppercase() } }}"

for ((i, v) in value.withIndex()) {
when (i) {
value.forEachIndexed { index, v ->
when (index) {
0 -> hookThemeMethod(darkTheme, methodName, hexStringToColorInt(v))
1 -> hookThemeMethod(lightTheme, methodName, hexStringToColorInt(v))
}
}
}

// If there's any rawColors value, hook the color getter
if (!theme.data.rawColors.isNullOrEmpty()) {
val getColorCompat = themeManager.getDeclaredMethod(
"getColorCompat",
Context::class.java,
Int::class.javaPrimitiveType
)
XposedBridge.hookMethod(getColorCompat, object : XC_MethodHook() {
override fun afterHookedMethod(param: MethodHookParam) {
param.result = (param.args[0] as Context).resources.getColor(param.args[1] as Int)
}
})
}
}
}
} catch (ex: Exception) {
Expand Down Expand Up @@ -187,7 +220,7 @@ class Main : IXposedHookZygoteInit, IXposedHookLoadPackage {
override fun afterHookedMethod(param: MethodHookParam) {
try {
val themeString = try { themeFile.readText() } catch (_: Exception) { "null" }
val tempEvalFile = createTempFileFromString("this.__vendetta_theme=" + themeString)
val tempEvalFile = createTempEvalFile("this.__vendetta_theme=" + themeString)

XposedBridge.invokeOriginalMethod(loadScriptFromFile, param.thisObject, arrayOf(tempEvalFile.absolutePath, tempEvalFile.absolutePath, param.args[2]))
XposedBridge.invokeOriginalMethod(loadScriptFromFile, param.thisObject, arrayOf(vendetta.absolutePath, vendetta.absolutePath, param.args[2]))
Expand Down

0 comments on commit 7321ac1

Please sign in to comment.