android: Support intents to emulation activity

src/android/app/src/main/AndroidManifest.xml

@@ -66,6 +66,14 @@ SPDX-License-Identifier: GPL-3.0-or-later
                 <data android:mimeType="application/octet-stream" />
             </intent-filter>
 
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data
+                    android:mimeType="application/octet-stream"
+                    android:scheme="content"/>
+            </intent-filter>
+
             <meta-data
                 android:name="android.nfc.action.TECH_DISCOVERED"
                 android:resource="@xml/nfc_tech_filter" />

src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt

@@ -11,6 +11,7 @@ import android.content.SharedPreferences
 import android.content.pm.ActivityInfo
 import android.content.res.Configuration
 import android.graphics.Color
+import android.net.Uri
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
@@ -47,6 +48,7 @@ import org.yuzu.yuzu_emu.features.settings.model.IntSetting
 import org.yuzu.yuzu_emu.features.settings.model.Settings
 import org.yuzu.yuzu_emu.features.settings.ui.SettingsActivity
 import org.yuzu.yuzu_emu.features.settings.utils.SettingsFile
+import org.yuzu.yuzu_emu.model.Game
 import org.yuzu.yuzu_emu.overlay.InputOverlay
 import org.yuzu.yuzu_emu.utils.*
 
@@ -59,7 +61,9 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     private var _binding: FragmentEmulationBinding? = null
     private val binding get() = _binding!!
 
-    val args by navArgs<EmulationFragmentArgs>()
+    private val args by navArgs<EmulationFragmentArgs>()
+
+    private lateinit var game: Game
 
     private var isInFoldableLayout = false
 
@@ -87,10 +91,25 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        val intentUri: Uri? = requireActivity().intent.data
+        var intentGame: Game? = null
+        if (intentUri != null) {
+            intentGame = if (Game.extensions.contains(FileUtil.getExtension(intentUri))) {
+                GameHelper.getGame(requireActivity().intent.data!!, false)
+            } else {
+                null
+            }
+        }
+        game = if (args.game != null) {
+            args.game!!
+        } else {
+            intentGame ?: error("[EmulationFragment] No bootable game present!")
+        }
+
         // So this fragment doesn't restart on configuration changes; i.e. rotation.
         retainInstance = true
         preferences = PreferenceManager.getDefaultSharedPreferences(YuzuApplication.appContext)
-        emulationState = EmulationState(args.game.path)
+        emulationState = EmulationState(game.path)
     }
 
     /**
@@ -114,7 +133,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
         updateShowFpsOverlay()
 
         binding.inGameMenu.getHeaderView(0).findViewById<TextView>(R.id.text_game_title).text =
-            args.game.title
+            game.title
         binding.inGameMenu.setNavigationItemSelectedListener {
             when (it.itemId) {
                 R.id.menu_pause_emulation -> {

src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/GameHelper.kt

@@ -63,13 +63,13 @@ object GameHelper {
                 )
             } else {
                 if (Game.extensions.contains(FileUtil.getExtension(it.uri))) {
-                    games.add(getGame(it.uri))
+                    games.add(getGame(it.uri, true))
                 }
             }
         }
     }
 
-    private fun getGame(uri: Uri): Game {
+    fun getGame(uri: Uri, addedToLibrary: Boolean): Game {
         val filePath = uri.toString()
         var name = NativeLibrary.getTitle(filePath)
 
@@ -94,11 +94,13 @@ object GameHelper {
             NativeLibrary.isHomebrew(filePath)
         )
 
-        val addedTime = preferences.getLong(newGame.keyAddedToLibraryTime, 0L)
-        if (addedTime == 0L) {
-            preferences.edit()
-                .putLong(newGame.keyAddedToLibraryTime, System.currentTimeMillis())
-                .apply()
+        if (addedToLibrary) {
+            val addedTime = preferences.getLong(newGame.keyAddedToLibraryTime, 0L)
+            if (addedTime == 0L) {
+                preferences.edit()
+                    .putLong(newGame.keyAddedToLibraryTime, System.currentTimeMillis())
+                    .apply()
+            }
         }
 
         return newGame

src/android/app/src/main/res/navigation/emulation_navigation.xml

@@ -12,7 +12,9 @@
         tools:layout="@layout/fragment_emulation" >
         <argument
             android:name="game"
-            app:argType="org.yuzu.yuzu_emu.model.Game" />
+            app:argType="org.yuzu.yuzu_emu.model.Game"
+            app:nullable="true"
+            android:defaultValue="@null" />
     </fragment>
 
 </navigation>

src/android/app/src/main/res/navigation/home_navigation.xml

@@ -62,7 +62,9 @@
         android:label="EmulationActivity">
         <argument
             android:name="game"
-            app:argType="org.yuzu.yuzu_emu.model.Game" />
+            app:argType="org.yuzu.yuzu_emu.model.Game"
+            app:nullable="true"
+            android:defaultValue="@null" />
     </activity>
 
     <action