android: Enhance shortcut customization with a custom dialog

Adds ability to customize game shortcuts with:
- Custom name input
- Editable icon via image picker
- Ability to stretch to fit or zoom to fit the shortcut icon

src/android/app/src/main/java/org/citra/citra_emu/adapters/GameAdapter.kt

@@ -19,6 +19,8 @@ import android.graphics.drawable.BitmapDrawable
 import android.graphics.Bitmap
 import android.content.pm.ShortcutInfo
 import android.content.pm.ShortcutManager
+import android.graphics.BitmapFactory
+import androidx.activity.result.ActivityResultLauncher
 import androidx.appcompat.app.AppCompatActivity
 import androidx.documentfile.provider.DocumentFile
 import androidx.lifecycle.ViewModelProvider
@@ -41,17 +43,30 @@ import org.citra.citra_emu.CitraApplication
 import org.citra.citra_emu.R
 import org.citra.citra_emu.adapters.GameAdapter.GameViewHolder
 import org.citra.citra_emu.databinding.CardGameBinding
+import org.citra.citra_emu.databinding.DialogShortcutBinding
 import org.citra.citra_emu.features.cheats.ui.CheatsFragmentDirections
-import org.citra.citra_emu.features.settings.ui.SettingsActivity
-import org.citra.citra_emu.features.settings.utils.SettingsFile
 import org.citra.citra_emu.model.Game
 import org.citra.citra_emu.utils.GameIconUtils
 import org.citra.citra_emu.viewmodel.GamesViewModel
+import androidx.core.net.toUri
+import androidx.core.graphics.scale
+import androidx.core.content.edit
 
-class GameAdapter(private val activity: AppCompatActivity, private val inflater: LayoutInflater) :
+class GameAdapter(private val activity: AppCompatActivity, private val inflater: LayoutInflater,  private val openImageLauncher: ActivityResultLauncher<String>?) :
     ListAdapter<Game, GameViewHolder>(AsyncDifferConfig.Builder(DiffCallback()).build()),
     View.OnClickListener, View.OnLongClickListener {
     private var lastClickTime = 0L
+    private var imagePath: String? = null
+    private var dialogShortcutBinding: DialogShortcutBinding? = null
+
+    fun handleShortcutImageResult(uri: Uri?) {
+        val path = uri?.toString()
+        if (path != null) {
+            imagePath = path
+            dialogShortcutBinding!!.imageScaleSwitch.isEnabled = imagePath != null
+            refreshShortcutDialogIcon()
+        }
+    }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): GameViewHolder {
         // Create a new view.
@@ -222,23 +237,70 @@ class GameAdapter(private val activity: AppCompatActivity, private val inflater:
         }
 
         bottomSheetView.findViewById<MaterialButton>(R.id.game_shortcut).setOnClickListener {
-            val shortcutManager = activity.getSystemService(ShortcutManager::class.java)
+            val preferences = PreferenceManager.getDefaultSharedPreferences(context)
 
-            CoroutineScope(Dispatchers.IO).launch {
-                val bitmap = (bottomSheetView.findViewById<ImageView>(R.id.game_icon).drawable as BitmapDrawable).bitmap
-                val icon = Icon.createWithBitmap(bitmap)
-
-                val shortcut = ShortcutInfo.Builder(context, game.title)
-                    .setShortLabel(game.title)
-                    .setIcon(icon)
-                    .setIntent(game.launchIntent.apply {
-                        putExtra("launched_from_shortcut", true)
-                    })
-                    .build()
-                shortcutManager.requestPinShortcut(shortcut, null)
+            // Default to false for zoomed in shortcut icons
+            preferences.edit() {
+                putBoolean(
+                    "shouldStretchIcon",
+                    false
+                )
             }
+
+            dialogShortcutBinding = DialogShortcutBinding.inflate(activity.layoutInflater)
+
+            dialogShortcutBinding!!.shortcutNameInput.setText(game.title)
+            GameIconUtils.loadGameIcon(activity, game, dialogShortcutBinding!!.shortcutIcon)
+
+            dialogShortcutBinding!!.shortcutIcon.setOnClickListener {
+                openImageLauncher?.launch("image/*")
+            }
+
+            dialogShortcutBinding!!.imageScaleSwitch.setOnCheckedChangeListener { _, isChecked ->
+                preferences.edit {
+                    putBoolean(
+                        "shouldStretchIcon",
+                        isChecked
+                    )
+                }
+                refreshShortcutDialogIcon()
+            }
+
+            MaterialAlertDialogBuilder(context)
+                .setTitle(R.string.create_shortcut)
+                .setView(dialogShortcutBinding!!.root)
+                .setPositiveButton(android.R.string.ok) { _, _ ->
+                    val shortcutName = dialogShortcutBinding!!.shortcutNameInput.text.toString()
+                    if (shortcutName.isEmpty()) {
+                        Toast.makeText(context, R.string.shortcut_name_empty, Toast.LENGTH_LONG).show()
+                        return@setPositiveButton
+                    }
+                    val iconBitmap = (dialogShortcutBinding!!.shortcutIcon.drawable as BitmapDrawable).bitmap
+                    val shortcutManager = activity.getSystemService(ShortcutManager::class.java)
+
+                    CoroutineScope(Dispatchers.IO).launch {
+                        val icon = Icon.createWithBitmap(iconBitmap)
+                        val shortcut = ShortcutInfo.Builder(context, shortcutName)
+                            .setShortLabel(shortcutName)
+                            .setIcon(icon)
+                            .setIntent(game.launchIntent.apply {
+                                putExtra("launchedFromShortcut", true)
+                            })
+                            .build()
+
+                        shortcutManager?.requestPinShortcut(shortcut, null)
+                        imagePath = null
+                    }
+                }
+                .setNegativeButton(android.R.string.cancel) { _, _ ->
+                    imagePath = null
+                }
+                .show()
+
+            bottomSheetDialog.dismiss()
         }
 
+
         bottomSheetView.findViewById<MaterialButton>(R.id.cheats).setOnClickListener {
             val action = CheatsFragmentDirections.actionGlobalCheatsFragment(holder.game.titleId)
             view.findNavController().navigate(action)
@@ -252,6 +314,48 @@ class GameAdapter(private val activity: AppCompatActivity, private val inflater:
         bottomSheetDialog.show()
     }
 
+    private fun refreshShortcutDialogIcon() {
+        if (imagePath != null) {
+            val originalBitmap = BitmapFactory.decodeStream(
+                CitraApplication.appContext.contentResolver.openInputStream(
+                    imagePath!!.toUri()
+                )
+            )
+            val scaledBitmap = {
+                val preferences =
+                    PreferenceManager.getDefaultSharedPreferences(CitraApplication.appContext)
+                if (preferences.getBoolean("shouldStretchIcon", true)) {
+                    // stretch to fit
+                    originalBitmap.scale(108, 108)
+                } else {
+                    // Zoom in to fit the bitmap while keeping the aspect ratio
+                    val width = originalBitmap.width
+                    val height = originalBitmap.height
+                    val targetSize = 108
+
+                    if (width > height) {
+                        // Landscape orientation
+                        val scaleFactor = targetSize.toFloat() / height
+                        val scaledWidth = (width * scaleFactor).toInt()
+                        val scaledBmp = originalBitmap.scale(scaledWidth, targetSize)
+
+                        val startX = (scaledWidth - targetSize) / 2
+                        Bitmap.createBitmap(scaledBmp, startX, 0, targetSize, targetSize)
+                    } else {
+                        val scaleFactor = targetSize.toFloat() / width
+                        val scaledHeight = (height * scaleFactor).toInt()
+                        val scaledBmp = originalBitmap.scale(targetSize, scaledHeight)
+
+                        val startY = (scaledHeight - targetSize) / 2
+                        Bitmap.createBitmap(scaledBmp, 0, startY, targetSize, targetSize)
+                    }
+                }
+            }()
+                dialogShortcutBinding!!.shortcutIcon.setImageBitmap(scaledBitmap)
+            }
+        }
+
+
     private fun isValidGame(extension: String): Boolean {
         return Game.badExtensions.stream()
             .noneMatch { extension == it.lowercase() }

src/android/app/src/main/java/org/citra/citra_emu/fragments/GamesFragment.kt

@@ -10,6 +10,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.ViewGroup.MarginLayoutParams
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
@@ -33,6 +34,7 @@ import org.citra.citra_emu.features.settings.model.Settings
 import org.citra.citra_emu.model.Game
 import org.citra.citra_emu.viewmodel.GamesViewModel
 import org.citra.citra_emu.viewmodel.HomeViewModel
+import android.net.Uri
 
 class GamesFragment : Fragment() {
     private var _binding: FragmentGamesBinding? = null
@@ -40,6 +42,13 @@ class GamesFragment : Fragment() {
 
     private val gamesViewModel: GamesViewModel by activityViewModels()
     private val homeViewModel: HomeViewModel by activityViewModels()
+    private lateinit var gameAdapter: GameAdapter
+
+    private val openImageLauncher = registerForActivityResult(
+        ActivityResultContracts.GetContent()
+    ) { uri: Uri? ->
+        gameAdapter.handleShortcutImageResult(uri)
+    }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -63,12 +72,18 @@ class GamesFragment : Fragment() {
 
         val inflater = LayoutInflater.from(requireContext())
 
+        gameAdapter = GameAdapter(
+            requireActivity() as AppCompatActivity,
+            inflater,
+            openImageLauncher
+        )
+
         binding.gridGames.apply {
             layoutManager = GridLayoutManager(
                 requireContext(),
                 resources.getInteger(R.integer.game_grid_columns)
             )
-            adapter = GameAdapter(requireActivity() as AppCompatActivity, inflater)
+            adapter = this@GamesFragment.gameAdapter
         }
 
         binding.swipeRefresh.apply {

src/android/app/src/main/java/org/citra/citra_emu/fragments/SearchFragment.kt

@@ -36,6 +36,8 @@ import org.citra.citra_emu.viewmodel.GamesViewModel
 import org.citra.citra_emu.viewmodel.HomeViewModel
 import java.time.temporal.ChronoField
 import java.util.Locale
+import android.net.Uri
+import androidx.activity.result.contract.ActivityResultContracts
 
 class SearchFragment : Fragment() {
     private var _binding: FragmentSearchBinding? = null
@@ -43,6 +45,13 @@ class SearchFragment : Fragment() {
 
     private val gamesViewModel: GamesViewModel by activityViewModels()
     private val homeViewModel: HomeViewModel by activityViewModels()
+    private lateinit var gameAdapter: GameAdapter
+
+    private val openImageLauncher = registerForActivityResult(
+        ActivityResultContracts.GetContent()
+    ) { uri: Uri? ->
+        gameAdapter.handleShortcutImageResult(uri)
+    }
 
     private lateinit var preferences: SharedPreferences
 
@@ -73,12 +82,18 @@ class SearchFragment : Fragment() {
 
         val inflater = LayoutInflater.from(requireContext())
 
+        gameAdapter = GameAdapter(
+            requireActivity() as AppCompatActivity,
+            inflater,
+            openImageLauncher
+        )
+
         binding.gridGamesSearch.apply {
             layoutManager = GridLayoutManager(
                 requireContext(),
                 resources.getInteger(R.integer.game_grid_columns)
             )
-            adapter = GameAdapter(requireActivity() as AppCompatActivity, inflater)
+            adapter = this@SearchFragment.gameAdapter
         }
 
         binding.chipGroup.setOnCheckedStateChangeListener { _, _ -> filterAndSearch() }

src/android/app/src/main/res/drawable/shortcut_edit_background.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_pressed="true">
+        <shape android:shape="rectangle">
+            <solid android:color="@android:color/black"/>
+            <corners android:radius="21dp"/>
+        </shape>
+    </item>
+    <item>
+        <shape android:shape="rectangle">
+            <solid android:color="@android:color/black"/>
+            <corners android:radius="21dp"/>
+        </shape>
+    </item>
+</selector>

src/android/app/src/main/res/layout/dialog_shortcut.xml

@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="16dp">
+
+    <FrameLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center">
+
+        <com.google.android.material.imageview.ShapeableImageView
+            android:id="@+id/shortcut_icon"
+            android:layout_width="96dp"
+            android:layout_height="96dp"
+            android:clickable="true"
+            android:focusable="true"
+            android:foreground="?attr/selectableItemBackground"
+            android:background="?attr/selectableItemBackgroundBorderless"
+            app:shapeAppearanceOverlay="@style/ShapeAppearance.Material3.Corner.Medium"/>
+
+        <ImageView
+            android:layout_width="42dp"
+            android:layout_height="42dp"
+            android:layout_gravity="center"
+            android:src="@android:drawable/ic_menu_edit"
+            android:padding="8dp"
+            android:contentDescription="@string/edit_icon"
+            app:tint="?attr/colorAccent"
+            android:background="@drawable/shortcut_edit_background"
+            android:alpha="0.8"/>
+
+    </FrameLayout>
+
+    <com.google.android.material.materialswitch.MaterialSwitch
+        android:id="@+id/image_scale_switch"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:layout_gravity="center_horizontal"
+        android:enabled="false"
+        android:text="@string/shortcut_image_stretch_toggle"/>
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:hint="@string/shortcut_name">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/shortcut_name_input"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:inputType="text"
+            android:maxLines="1"/>
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+</LinearLayout>

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

@@ -477,6 +477,12 @@
     <!-- About Game Dialog -->
     <string name="play">Play</string>
     <string name="shortcut">Shortcut</string>
+    <string name="shortcut_name">Shortcut Name</string>
+    <string name="edit_icon">Edit icon</string>
+    <string name="create_shortcut">Create Shortcut</string>
+    <string name="shortcut_name_empty">Shortcut name cannot be empty</string>
+    <string name="shortcut_image_stretch_toggle">Stretch to fit image</string>
+
 
     <!-- Cheats -->
     <string name="cheats">Cheats</string>