Show snackbar upon crop save destination dir change

Author: w2sv

app/src/main/java/com/autocrop/activities/examination/ExaminationActivityViewModel.kt

@@ -6,6 +6,7 @@ import androidx.lifecycle.ViewModel
 import com.autocrop.collections.CropBundle
 import com.autocrop.utils.BlankFun
 import com.autocrop.utils.Consumable
+import com.autocrop.utilsandroid.documentUriPathIdentifier
 import com.autocrop.utilsandroid.externalPicturesDir
 import timber.log.Timber
 
@@ -59,7 +60,7 @@ class ExaminationActivityViewModel(private val validSaveDirDocumentUri: Uri?)
 
     fun cropWriteDirIdentifier(): String =
         validSaveDirDocumentUri?.let {
-            it.pathSegments[1]
+            documentUriPathIdentifier(it)
         } ?: externalPicturesDir.path
 
     /**

app/src/main/java/com/autocrop/activities/main/fragments/flowfield/FlowFieldFragment.kt

@@ -7,8 +7,10 @@ import android.content.Context
 import android.content.Intent
 import android.net.Uri
 import android.os.Bundle
+import android.text.SpannableStringBuilder
 import android.view.View
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.text.color
 import com.autocrop.activities.IntentExtraIdentifier
 import com.autocrop.activities.cropping.CroppingActivity
 import com.autocrop.activities.main.fragments.MainActivityFragment
@@ -36,31 +38,20 @@ class FlowFieldFragment:
     private fun setMenuInflationButtonOnClickListener() =
         binding.menuInflationButton.setOnClickListener { popupMenu.show() }
 
-    private val popupMenu: FlowFieldFragmentMenu by lazy {
+    private val popupMenu by lazy {
         FlowFieldFragmentMenu(
             mapOf(
-                R.id.main_menu_item_change_save_destination_dir to { pickSaveDestinationDirContract.launch(CropFileSaveDestinationPreferences.treeUri) },
+                R.id.main_menu_item_change_save_destination_dir to ::pickCropSaveDestinationDir,
                 R.id.main_menu_item_rate_the_app to ::goToPlayStoreListing,
-                R.id.main_menu_item_about_the_app to { castedActivity.replaceCurrentFragmentWith(AboutFragment(), false) }
+                R.id.main_menu_item_about_the_app to ::invokeAboutFragment
             ),
             requireView().context,
             binding.menuInflationButton
         )
     }
 
-    private fun goToPlayStoreListing() =
-        try{
-            startActivity(
-                Intent(Intent.ACTION_VIEW).apply {
-                    data = Uri.parse("https://play.google.com/store/apps/details?id=${requireContext().packageName}")
-                    setPackage("com.android.vending")
-                }
-            )
-        } catch (e: ActivityNotFoundException){
-            requireActivity()
-                .snacky("Seems like you're not signed into the Play Store, pal \uD83E\uDD14")
-                .show()
-        }
+    private fun pickCropSaveDestinationDir() =
+        pickSaveDestinationDirContract.launch(CropFileSaveDestinationPreferences.treeUri)
 
     private val pickSaveDestinationDirContract = registerForActivityResult(
         object: ActivityResultContracts.OpenDocumentTree(){
@@ -75,14 +66,46 @@ class FlowFieldFragment:
         }
     ) {
         it?.let { treeUri ->
-            requireActivity().applicationContext.contentResolver.takePersistableUriPermission(
-                treeUri,
-                Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION
-            )
-            CropFileSaveDestinationPreferences.treeUri = treeUri
+            if (CropFileSaveDestinationPreferences.treeUri != treeUri){
+                CropFileSaveDestinationPreferences.treeUri = treeUri
+
+                with(requireActivity()){
+                    applicationContext.contentResolver.takePersistableUriPermission(
+                        treeUri,
+                        Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION
+                    )
+                    snacky(
+                        SpannableStringBuilder()
+                            .append("Crops will be saved to ")
+                            .color(getColorInt(NotificationColor.SUCCESS, requireContext())){
+                                append(
+                                    documentUriPathIdentifier(CropFileSaveDestinationPreferences.documentUri!!)
+                                )
+                            }
+                    )
+                        .show()
+                }
+            }
         }
     }
 
+    private fun invokeAboutFragment() =
+        castedActivity.replaceCurrentFragmentWith(AboutFragment(), false)
+
+    private fun goToPlayStoreListing() =
+        try{
+            startActivity(
+                Intent(Intent.ACTION_VIEW).apply {
+                    data = Uri.parse("https://play.google.com/store/apps/details?id=${requireContext().packageName}")
+                    setPackage("com.android.vending")
+                }
+            )
+        } catch (e: ActivityNotFoundException){
+            requireActivity()
+                .snacky("Seems like you're not signed into the Play Store, pal \uD83E\uDD14")
+                .show()
+        }
+
     //$$$$$$$$$$$$$$$$$$
     // Image Selection $
     //$$$$$$$$$$$$$$$$$$

app/src/main/java/com/autocrop/global/UserPreferences.kt

@@ -84,7 +84,7 @@ object CropFileSaveDestinationPreferences: UserPreferences<Uri?>(sortedMapOf(Key
     override fun put(key: String?, value: Uri?): Uri? {
         if (key == Keys.TREE_URI && value != getOrDefault(Keys.TREE_URI, null))
             documentUri = buildDocumentUriFromTreeUri(value!!)
-                .also { Timber.i("Set documentUri $it") }
+                .also { Timber.i("Set new documentUri: $it") }
         return super.put(key, value)
     }
 

app/src/main/java/com/autocrop/utilsandroid/Uri.kt

@@ -21,4 +21,7 @@ fun Context.uriPermissionGranted(uri: Uri, permissionCode: Int): Boolean =
     ) == PackageManager.PERMISSION_GRANTED
 
 fun buildDocumentUriFromTreeUri(treeUri: Uri): Uri =
-    DocumentsContract.buildDocumentUriUsingTree(treeUri, DocumentsContract.getTreeDocumentId(treeUri))
+    DocumentsContract.buildDocumentUriUsingTree(treeUri, DocumentsContract.getTreeDocumentId(treeUri))
+
+fun documentUriPathIdentifier(documentUri: Uri): String =
+    documentUri.pathSegments[1]