fix(youtube/return-youtube-dislikes): fix temporarily frozen video af…

…ter opening a shorts (ReVanced#2126)

Co-authored-by: oSumAtrIX <johan.melkonyan1@web.de>

src/main/kotlin/app/revanced/patches/youtube/layout/returnyoutubedislike/fingerprints/ShortsTextViewFingerprint.kt

@@ -0,0 +1,30 @@
+package app.revanced.patches.youtube.layout.returnyoutubedislike.fingerprints
+
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import org.jf.dexlib2.Opcode
+
+object ShortsTextViewFingerprint : MethodFingerprint(
+    returnType = "V",
+    parameters = listOf("L", "L"),
+    opcodes = listOf(
+        Opcode.INVOKE_SUPER,    // first instruction of method
+        Opcode.IF_NEZ,
+        Opcode.RETURN_VOID,
+        Opcode.INVOKE_VIRTUAL,
+        Opcode.MOVE_RESULT_OBJECT,
+        Opcode.CHECK_CAST,
+        Opcode.SGET_OBJECT,     // insertion point, must be after constructor call to parent class
+        Opcode.INVOKE_VIRTUAL,
+        Opcode.MOVE_RESULT,
+        Opcode.CONST_4,
+        Opcode.IF_EQZ,
+        Opcode.CONST_4,
+        Opcode.IF_EQ,
+        Opcode.CONST_4,
+        Opcode.IF_EQ,
+        Opcode.RETURN_VOID,
+        Opcode.IGET_OBJECT,     // TextView field
+        Opcode.CHECK_CAST,
+        Opcode.IGET_BOOLEAN,    // boolean field
+    )
+)

src/main/kotlin/app/revanced/patches/youtube/layout/returnyoutubedislike/patch/ReturnYouTubeDislikePatch.kt

@@ -5,7 +5,6 @@ import app.revanced.patcher.annotation.Description
 import app.revanced.patcher.annotation.Name
 import app.revanced.patcher.annotation.Version
 import app.revanced.patcher.data.BytecodeContext
-import app.revanced.patcher.data.toMethodWalker
 import app.revanced.patcher.extensions.MethodFingerprintExtensions.name
 import app.revanced.patcher.extensions.addInstruction
 import app.revanced.patcher.extensions.addInstructions
@@ -19,14 +18,12 @@ import app.revanced.patcher.patch.PatchResultError
 import app.revanced.patcher.patch.PatchResultSuccess
 import app.revanced.patcher.patch.annotations.DependsOn
 import app.revanced.patcher.patch.annotations.Patch
-import app.revanced.patcher.util.proxy.mutableTypes.MutableMethod
 import app.revanced.patches.youtube.layout.returnyoutubedislike.annotations.ReturnYouTubeDislikeCompatibility
 import app.revanced.patches.youtube.layout.returnyoutubedislike.fingerprints.*
 import app.revanced.patches.youtube.layout.returnyoutubedislike.resource.patch.ReturnYouTubeDislikeResourcePatch
 import app.revanced.patches.youtube.misc.integrations.patch.IntegrationsPatch
 import app.revanced.patches.youtube.misc.playertype.patch.PlayerTypeHookPatch
 import app.revanced.patches.youtube.video.videoid.patch.VideoIdPatch
-import org.jf.dexlib2.builder.instruction.BuilderInstruction35c
 import org.jf.dexlib2.iface.instruction.FiveRegisterInstruction
 import org.jf.dexlib2.iface.instruction.OneRegisterInstruction
 import org.jf.dexlib2.iface.instruction.ReferenceInstruction
@@ -48,7 +45,7 @@ import org.jf.dexlib2.iface.instruction.TwoRegisterInstruction
 class ReturnYouTubeDislikePatch : BytecodePatch(
     listOf(
         TextComponentConstructorFingerprint,
-        ShortsTextComponentParentFingerprint,
+        ShortsTextViewFingerprint,
         DislikesOldLayoutTextViewFingerprint,
         LikeFingerprint,
         DislikeFingerprint,
@@ -137,35 +134,40 @@ class ReturnYouTubeDislikePatch : BytecodePatch(
 
         // region Hook for Short videos.
 
-        ShortsTextComponentParentFingerprint.result?.let {
-            context
-                .toMethodWalker(it.method)
-                .nextMethod(it.scanResult.patternScanResult!!.endIndex, true)
-                .getMethod().let { method ->
-                    with(method as MutableMethod) {
-                        // After walking, verify the found method is what's expected.
-                        if (returnType != ("Ljava/lang/CharSequence;") || parameterTypes.size != 1)
-                            return PatchResultError("Method signature did not match: $this $parameterTypes")
-
-                        val insertIndex = implementation!!.instructions.size - 1
-                        val spannedParameterRegister = instruction<OneRegisterInstruction>(insertIndex).registerA
-                        val parameter = instruction<BuilderInstruction35c>(insertIndex - 2).reference
-
-                        if (!parameter.toString().endsWith("Landroid/text/Spanned;"))
-                            return PatchResultError("Method signature parameter did not match: $parameter")
-
-                        insertShorts(insertIndex, spannedParameterRegister)
-                    }
-                }
-
-            // Additional hook, called after user dislikes.
-            with(it.mutableMethod) {
-                val insertIndex = it.scanResult.patternScanResult!!.startIndex + 2
-                val overwriteRegister = (implementation!!.instructions.elementAt(insertIndex - 1)
-                        as OneRegisterInstruction).registerA
-                insertShorts(insertIndex, overwriteRegister)
+        ShortsTextViewFingerprint.result?.let {
+            it.mutableMethod.apply {
+                val patternResult = it.scanResult.patternScanResult!!
+
+                // If the field is true, the TextView is for a dislike button.
+                val isDisLikesBooleanReference = instruction<ReferenceInstruction>(patternResult.endIndex).reference
+
+                val textViewFieldReference = // Like/Dislike button TextView field
+                    instruction<ReferenceInstruction>(patternResult.endIndex - 2).reference
+
+                // Check if the hooked TextView object is that of the dislike button.
+                // If RYD is disabled, or the TextView object is not that of the dislike button, the execution flow is not interrupted.
+                // Otherwise, the TextView object is modified, and the execution flow is interrupted to prevent it from being changed afterward.
+                val insertIndex = patternResult.startIndex + 6
+                addInstructions(
+                    insertIndex, """
+                    # Check, if the TextView is for a dislike button
+                    iget-boolean v0, p0, $isDisLikesBooleanReference
+                    if-eqz v0, :is_like
+                    
+                    # Hook the TextView, if it is for the dislike button
+                    iget-object v0, p0, $textViewFieldReference
+                    invoke-static {v0}, $INTEGRATIONS_CLASS_DESCRIPTOR->setShortsDislikes(Landroid/view/View;)Z
+                    move-result v0
+                    if-eqz v0, :ryd_disabled
+                    return-void
+                   
+                    :is_like
+                    :ryd_disabled
+                    nop
+                """
+                )
             }
-        } ?: return ShortsTextComponentParentFingerprint.toErrorResult()
+        } ?: return ShortsTextViewFingerprint.toErrorResult()
 
         // endregion
 
@@ -201,14 +203,5 @@ class ReturnYouTubeDislikePatch : BytecodePatch(
             DISLIKE(-1),
             REMOVE_LIKE(0)
         }
-
-        private fun MutableMethod.insertShorts(index: Int, register: Int) {
-            addInstructions(
-                index, """
-                invoke-static {v$register}, $INTEGRATIONS_CLASS_DESCRIPTOR->onShortsComponentCreated(Landroid/text/Spanned;)Landroid/text/Spanned;
-                move-result-object v$register
-            """
-            )
-        }
     }
 }

src/main/resources/returnyoutubedislike/host/values/strings.xml

@@ -13,6 +13,10 @@
     <string name="revanced_ryd_enable_summary_on">Dislikes are shown</string>
     <string name="revanced_ryd_enable_summary_off">Dislikes are not shown</string>
 
+    <string name="revanced_ryd_shorts_title">Show dislikes on Shorts</string>
+    <string name="revanced_ryd_shorts_summary_on">Dislikes shown on Shorts</string>
+    <string name="revanced_ryd_shorts_summary_off">Dislikes hidden on Shorts</string>
+
     <string name="revanced_ryd_dislike_percentage_title">Dislikes as percentage</string>
     <string name="revanced_ryd_dislike_percentage_summary_on">Dislikes shown as percentage</string>
     <string name="revanced_ryd_dislike_percentage_summary_off">Dislikes shown as number</string>