Added assigning repo to installed modules to show readme

Close #1089

app/src/main/java/com/topjohnwu/magisk/data/database/Repo.kt

@@ -14,6 +14,9 @@ interface RepoBase {
     @Query("SELECT * FROM repos WHERE id = :id AND versionCode > :versionCode LIMIT 1")
     fun getUpdatableRepoById(id: String, versionCode: Int): Repo?
 
+    @Query("SELECT * FROM repos WHERE id = :id LIMIT 1")
+    fun getRepoById(id: String): Repo?
+
     companion object {
         const val LIMIT = 10
     }

app/src/main/java/com/topjohnwu/magisk/model/entity/recycler/ModuleRvItem.kt

@@ -170,6 +170,13 @@ class ModuleItem(val item: Module) : ObservableItem<ModuleItem>(), Observable {
 
     override val layoutRes = R.layout.item_module_md2
 
+    @get:Bindable
+    var repo: Repo? = null
+        set(value) {
+            field = value
+            notifyChange(BR.repo)
+        }
+
     @get:Bindable
     var isEnabled = item.enable
         set(value) {

app/src/main/java/com/topjohnwu/magisk/redesign/module/ModuleViewModel.kt

@@ -129,6 +129,7 @@ class ModuleViewModel(
     override fun refresh() = Single.fromCallable { Module.loadModules() }
         .map { it.map { ModuleItem(it) } }
         .map { it.order() }
+        .map { it.loadDetail() }
         .map { build(active = it, updatable = loadUpdates(it)) }
         .map { it to items.calculateDiff(it) }
         .applyViewModel(this)
@@ -222,6 +223,13 @@ class ModuleViewModel(
         .sortedBy { it.item.name.toLowerCase(currentLocale) }
         .toList()
 
+    @WorkerThread
+    private fun List<ModuleItem>.loadDetail() = onEach { module ->
+        Single.fromCallable { dao.getRepoById(module.item.id)!! }
+            .subscribeK { module.repo = it }
+            .add()
+    }
+
     private fun update(repo: Repo, progress: Int) =
         Single.fromCallable { itemsRemote + itemsSearch }
             .map { it.first { it.item.id == repo.id } }
@@ -263,6 +271,9 @@ class ModuleViewModel(
     fun downloadPressed(item: RepoItem) = ModuleInstallDialog(item.item).publish()
     fun installPressed() = InstallExternalModuleEvent().publish()
     fun infoPressed(item: RepoItem) = OpenChangelogEvent(item.item).publish()
+    fun infoPressed(item: ModuleItem) {
+        OpenChangelogEvent(item.repo ?: return).publish()
+    }
 
     // ---
 

app/src/main/res/layout/item_module_md2.xml

@@ -97,7 +97,21 @@
                 android:background="?colorSurfaceVariant"
                 app:layout_constraintTop_toBottomOf="@+id/module_description" />
 
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/module_info"
+                style="@style/WidgetFoundation.Icon"
+                gone="@{item.repo == null}"
+                android:layout_width="wrap_content"
+                android:alpha=".5"
+                android:onClick="@{() -> viewModel.infoPressed(item)}"
+                android:paddingEnd="@dimen/l_50"
+                app:layout_constraintBottom_toBottomOf="@+id/module_remove"
+                app:layout_constraintEnd_toStartOf="@+id/module_remove"
+                app:layout_constraintTop_toTopOf="@+id/module_remove"
+                app:srcCompat="@drawable/ic_info" />
+
             <com.google.android.material.button.MaterialButton
+                android:id="@+id/module_remove"
                 style="@style/WidgetFoundation.Button.Text"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"