feat(music): add start-page patch

src/main/kotlin/app/revanced/patches/music/general/startpage/fingerprints/ColdStartUpFingerprint.kt

@@ -0,0 +1,18 @@
+package app.revanced.patches.music.general.startpage.fingerprints
+
+import app.revanced.patcher.extensions.or
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import com.android.tools.smali.dexlib2.AccessFlags
+import com.android.tools.smali.dexlib2.Opcode
+
+object ColdStartUpFingerprint : MethodFingerprint(
+    returnType = "Ljava/lang/String;",
+    accessFlags = AccessFlags.PUBLIC or AccessFlags.FINAL,
+    parameters = emptyList(),
+    opcodes = listOf(
+        Opcode.GOTO,
+        Opcode.CONST_STRING,
+        Opcode.RETURN_OBJECT
+    ),
+    strings = listOf("FEmusic_library_sideloaded_tracks", "FEmusic_home")
+)

src/main/kotlin/app/revanced/patches/music/general/startpage/patch/StartPagePatch.kt

@@ -0,0 +1,65 @@
+package app.revanced.patches.music.general.startpage.patch
+
+import app.revanced.extensions.exception
+import app.revanced.patcher.annotation.Description
+import app.revanced.patcher.annotation.Name
+import app.revanced.patcher.data.BytecodeContext
+import app.revanced.patcher.extensions.InstructionExtensions.addInstructions
+import app.revanced.patcher.extensions.InstructionExtensions.getInstruction
+import app.revanced.patcher.extensions.InstructionExtensions.removeInstruction
+import app.revanced.patcher.patch.BytecodePatch
+import app.revanced.patcher.patch.annotations.DependsOn
+import app.revanced.patcher.patch.annotations.Patch
+import app.revanced.patches.music.general.startpage.fingerprints.ColdStartUpFingerprint
+import app.revanced.patches.music.utils.annotations.MusicCompatibility
+import app.revanced.patches.music.utils.intenthook.patch.IntentHookPatch
+import app.revanced.patches.music.utils.settings.resource.patch.SettingsPatch
+import app.revanced.patches.music.utils.settings.resource.patch.SettingsPatch.Companion.contexts
+import app.revanced.util.enum.CategoryType
+import app.revanced.util.integrations.Constants.MUSIC_GENERAL
+import app.revanced.util.resources.ResourceUtils.copyXmlNode
+import com.android.tools.smali.dexlib2.iface.instruction.OneRegisterInstruction
+
+@Patch
+@Name("Start page")
+@Description("Set the default start page.")
+@DependsOn(
+    [
+        IntentHookPatch::class,
+        SettingsPatch::class
+    ]
+)
+@MusicCompatibility
+class StartPagePatch : BytecodePatch(
+    listOf(ColdStartUpFingerprint)
+) {
+    override fun execute(context: BytecodeContext) {
+
+        ColdStartUpFingerprint.result?.let {
+            it.mutableMethod.apply {
+                val targetIndex = it.scanResult.patternScanResult!!.endIndex
+                val targetRegister = getInstruction<OneRegisterInstruction>(targetIndex).registerA
+
+                addInstructions(
+                    targetIndex + 1, """
+                        invoke-static {v$targetRegister}, $MUSIC_GENERAL->setStartPage(Ljava/lang/String;)Ljava/lang/String;
+                        move-result-object v$targetRegister
+                        return-object v$targetRegister
+                        """
+                )
+                removeInstruction(targetIndex)
+            }
+        } ?: throw ColdStartUpFingerprint.exception
+
+        /**
+         * Copy arrays
+         */
+        contexts.copyXmlNode("music/startpage/host", "values/arrays.xml", "resources")
+
+        SettingsPatch.addMusicPreferenceWithIntent(
+            CategoryType.GENERAL,
+            "revanced_start_page"
+        )
+
+    }
+}

src/main/resources/music/settings/host/values/strings.xml

@@ -145,6 +145,13 @@
     <string name="revanced_save_video_quality_wifi">Changing default Wi-Fi quality to:</string>
     <string name="revanced_spoof_app_version_summary">Trick the YouTube Music version to v4.27.53 for Canadian users.</string>
     <string name="revanced_spoof_app_version_title">Spoof app version</string>
+    <string name="revanced_start_page_entry_chart">Chart</string>
+    <string name="revanced_start_page_entry_explore">Explore</string>
+    <string name="revanced_start_page_entry_home">Home</string>
+    <string name="revanced_start_page_entry_library">Library</string>
+    <string name="revanced_start_page_entry_subscription">Subscription</string>
+    <string name="revanced_start_page_summary">Set the start page.</string>
+    <string name="revanced_start_page_title">Start page</string>
 
     <string name="sb_enabled">Enable SponsorBlock</string>
     <string name="sb_enabled_sum">SponsorBlock is a crowd-sourced system for skipping annoying parts of YouTube videos.</string>

src/main/resources/music/startpage/host/values/arrays.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="revanced_start_page_entry">
+        <item>@string/revanced_start_page_entry_chart</item>
+        <item>@string/revanced_start_page_entry_explore</item>
+        <item>@string/revanced_start_page_entry_home</item>
+        <item>@string/revanced_start_page_entry_library</item>
+        <item>@string/revanced_start_page_entry_subscription</item>
+    </string-array>
+    <string-array name="revanced_start_page_entry_value">
+        <item>FEmusic_charts</item>
+        <item>FEmusic_explore</item>
+        <item>FEmusic_home</item>
+        <item>FEmusic_library_landing</item>
+        <item>FEmusic_library_corpus_artists</item>
+    </string-array>
+</resources>