Indicate obsolete extensions (#2494)

* Indicate obsolete extensions

* Make obsolete indicators red

* Move obsolete extensions up the list

* Add base button theme for holder

* Use red button color state instead of explicit text color

app/src/main/java/eu/kanade/tachiyomi/extension/ExtensionManager.kt

@@ -71,7 +71,7 @@ class ExtensionManager(
         private set(value) {
             field = value
             availableExtensionsRelay.call(value)
-            setUpdateFieldOfInstalledExtensions(value)
+            updatedInstalledExtensionsStatuses(value)
         }
 
     /**
@@ -158,20 +158,27 @@ class ExtensionManager(
      *
      * @param availableExtensions The list of extensions given by the [api].
      */
-    private fun setUpdateFieldOfInstalledExtensions(availableExtensions: List<Extension.Available>) {
+    private fun updatedInstalledExtensionsStatuses(availableExtensions: List<Extension.Available>) {
         val mutInstalledExtensions = installedExtensions.toMutableList()
         var changed = false
 
         for ((index, installedExt) in mutInstalledExtensions.withIndex()) {
             val pkgName = installedExt.pkgName
-            val availableExt = availableExtensions.find { it.pkgName == pkgName } ?: continue
+            val availableExt = availableExtensions.find { it.pkgName == pkgName }
 
+            if (availableExt == null) {
+                if (!installedExt.isObsolete) {
+                    mutInstalledExtensions[index] = installedExt.copy(isObsolete = true)
+                    changed = true
+                }
+            } else {
                 val hasUpdate = availableExt.versionCode > installedExt.versionCode
                 if (installedExt.hasUpdate != hasUpdate) {
                     mutInstalledExtensions[index] = installedExt.copy(hasUpdate = hasUpdate)
                     changed = true
                 }
             }
+        }
         if (changed) {
             installedExtensions = mutInstalledExtensions
         }

app/src/main/java/eu/kanade/tachiyomi/extension/model/Extension.kt

@@ -16,7 +16,8 @@ sealed class Extension {
                          override val versionCode: Int,
                          val sources: List<Source>,
                          override val lang: String,
-                         val hasUpdate: Boolean = false) : Extension()
+                         val hasUpdate: Boolean = false,
+                         val isObsolete: Boolean = false) : Extension()
 
     data class Available(override val name: String,
                          override val pkgName: String,

app/src/main/java/eu/kanade/tachiyomi/ui/extension/ExtensionDetailsController.kt

@@ -69,6 +69,10 @@ class ExtensionDetailsController(bundle: Bundle? = null) :
             presenter.uninstallExtension()
         }
 
+        if (extension.isObsolete) {
+            extension_obsolete.visibility = View.VISIBLE
+        }
+
         val themedContext by lazy { getPreferenceThemeContext() }
         val manager = PreferenceManager(themedContext)
         manager.preferenceDataStore = EmptyPreferenceDataStore()

app/src/main/java/eu/kanade/tachiyomi/ui/extension/ExtensionHolder.kt

@@ -1,6 +1,8 @@
 package eu.kanade.tachiyomi.ui.extension
 
 import android.view.View
+import androidx.core.content.ContextCompat
+import androidx.vectordrawable.graphics.drawable.VectorDrawableCompat
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.glide.GlideApp
 import eu.kanade.tachiyomi.extension.model.Extension
@@ -52,11 +54,15 @@ class ExtensionHolder(view: View, override val adapter: ExtensionAdapter) :
         bindButton(item)
     }
 
+    @Suppress("ResourceType")
     fun bindButton(item: ExtensionItem) = with(ext_button) {
         isEnabled = true
         isClickable = true
         isActivated = false
 
+        background = VectorDrawableCompat.create(resources!!, R.drawable.button_bg_transparent, null)
+        setTextColor(ContextCompat.getColorStateList(context, R.drawable.button_bg_transparent))
+
         val extension = item.extension
 
         val installStep = item.installStep
@@ -73,12 +79,22 @@ class ExtensionHolder(view: View, override val adapter: ExtensionAdapter) :
                 isClickable = false
             }
         } else if (extension is Extension.Installed) {
-            if (extension.hasUpdate) {
+            when {
+                extension.hasUpdate -> {
                     isActivated = true
                     setText(R.string.ext_update)
-            } else {
+                }
+                extension.isObsolete -> {
+                    // Red outline
+                    background = VectorDrawableCompat.create(resources, R.drawable.button_bg_error, null)
+                    setTextColor(ContextCompat.getColorStateList(context, R.drawable.button_bg_error))
+
+                    setText(R.string.ext_obsolete)
+                }
+                else -> {
                     setText(R.string.ext_details)
                 }
+            }
         } else if (extension is Extension.Untrusted) {
             setText(R.string.ext_trust)
         } else {

app/src/main/java/eu/kanade/tachiyomi/ui/extension/ExtensionPresenter.kt

@@ -62,7 +62,7 @@ open class ExtensionPresenter(
 
         val items = mutableListOf<ExtensionItem>()
 
-        val installedSorted = installed.sortedWith(compareBy({ !it.hasUpdate }, { it.pkgName }))
+        val installedSorted = installed.sortedWith(compareBy({ !it.hasUpdate }, { !it.isObsolete }, { it.pkgName }))
         val untrustedSorted = untrusted.sortedBy { it.pkgName }
         val availableSorted = available
                 // Filter out already installed extensions and disabled languages

app/src/main/res/drawable/button_bg_error.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_activated="true" android:color="@color/md_white_1000">
+        <shape android:shape="rectangle">
+            <corners android:radius="2dp" />
+            <solid android:color="@color/red_error" />
+            <padding android:left="8dp" android:right="8dp" />
+        </shape>
+    </item>
+    <item android:state_enabled="false" android:color="@color/textColorHintLight">
+        <shape android:shape="rectangle">
+            <corners android:radius="2dp" />
+            <solid android:color="@android:color/transparent" />
+            <stroke android:width="1dp" android:color="@color/textColorHintLight" />
+            <padding android:left="8dp" android:right="8dp" />
+        </shape>
+    </item>
+    <item android:color="@color/red_error">
+        <shape android:color="@color/red_error" android:shape="rectangle">
+            <corners android:radius="2dp" />
+            <solid android:color="@android:color/transparent" />
+            <stroke android:width="1dp" android:color="@color/red_error" />
+            <padding android:left="8dp" android:right="8dp" />
+        </shape>
+    </item>
+</selector>

app/src/main/res/layout/extension_detail_controller.xml

@@ -60,6 +60,22 @@
         app:layout_constraintEnd_toEndOf="parent"
         tools:text="eu.kanade.tachiyomi.extension.en.myext"/>
 
+    <TextView
+        android:id="@+id/extension_obsolete"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:layout_marginBottom="16dp"
+        android:background="@color/red_error"
+        android:gravity="center"
+        android:padding="16dp"
+        android:text="@string/obsolete_extension_message"
+        android:textColor="@android:color/white"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/extension_pkg" />
+
     <Button
         android:id="@+id/extension_uninstall_button"
         android:layout_width="0dp"
@@ -71,7 +87,7 @@
         style="@style/Theme.Widget.Button.Colored"
         app:layout_constraintStart_toStartOf="@id/guideline"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/extension_pkg" />
+        app:layout_constraintTop_toBottomOf="@id/extension_obsolete" />
 
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/extension_prefs_recycler"

app/src/main/res/values/strings.xml

@@ -161,6 +161,7 @@
     <string name="all_lang">All</string>
     <string name="ext_details">Details</string>
     <string name="ext_update">Update</string>
+    <string name="ext_obsolete">Obsolete</string>
     <string name="ext_install">Install</string>
     <string name="ext_pending">Pending</string>
     <string name="ext_downloading">Downloading</string>
@@ -173,6 +174,7 @@
     <string name="ext_available">Available</string>
     <string name="untrusted_extension">Untrusted extension</string>
     <string name="untrusted_extension_message">This extension was signed with an untrusted certificate and wasn\'t activated.\n\nA malicious extension could read any login credentials stored in Tachiyomi or execute arbitrary code.\n\nBy trusting this certificate you accept these risks.</string>
+    <string name="obsolete_extension_message">This extension is no longer available.</string>
     <string name="ext_version_info">Version: %1$s</string>
     <string name="ext_language_info">Language: %1$s</string>
     <string name="ext_empty_preferences">No preferences to edit for this extension</string>