Merge pull request #11742 from K0bin/document-provider-2

Android: Document Provider improvements

Source/Android/app/build.gradle

@@ -40,7 +40,6 @@ android {
     }
 
     defaultConfig {
-        // TODO If this is ever modified, change application_id in strings.xml
         applicationId "org.dolphinemu.dolphinemu"
         minSdkVersion 21
         targetSdkVersion 33
@@ -74,6 +73,7 @@ android {
                 signingConfig signingConfigs.release
             }
 
+            resValue 'string', 'app_name_suffixed', 'Dolphin Emulator'
             minifyEnabled true
             shrinkResources true
             proguardFiles getDefaultProguardFile(
@@ -86,13 +86,14 @@ android {
         // Signed by debug key disallowing distribution on Play Store.
         // Attaches 'debug' suffix to version and package name, allowing installation alongside the release build.
         debug {
-            // TODO If this is ever modified, change application_id in debug/strings.xml
+            resValue 'string', 'app_name_suffixed', 'Dolphin Debug'
             applicationIdSuffix ".debug"
             versionNameSuffix '-debug'
             jniDebuggable true
         }
 
         benchmark {
+            resValue 'string', 'app_name_suffixed', 'Dolphin Benchmark'
             signingConfig signingConfigs.debug
             matchingFallbacks = ['release']
             debuggable false

Source/Android/app/src/main/AndroidManifest.xml

@@ -31,7 +31,7 @@
 
     <application
         android:name=".DolphinApplication"
-        android:label="@string/app_name"
+        android:label="@string/app_name_suffixed"
         android:icon="@mipmap/ic_launcher"
         android:requestLegacyExternalStorage="true"
         android:preserveLegacyExternalStorage="true"
@@ -97,7 +97,7 @@
         <activity
             android:name=".activities.CustomFilePickerActivity"
             android:exported="false"
-            android:label="@string/app_name"
+            android:label="@string/app_name_suffixed"
             android:theme="@style/Theme.Dolphin.FilePicker">
 
             <intent-filter>

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/DocumentProvider.kt

@@ -54,12 +54,11 @@ class DocumentProvider : DocumentsProvider() {
 
     override fun queryRoots(projection: Array<String>?): Cursor {
         val result = MatrixCursor(projection ?: DEFAULT_ROOT_PROJECTION)
-        rootDirectory = rootDirectory ?: DirectoryInitialization.getUserDirectoryPath(context)
         rootDirectory ?: return result
 
         result.newRow().apply {
             add(DocumentsContract.Root.COLUMN_ROOT_ID, ROOT_ID)
-            add(DocumentsContract.Root.COLUMN_TITLE, context!!.getString(R.string.app_name))
+            add(DocumentsContract.Root.COLUMN_TITLE, context!!.getString(R.string.app_name_suffixed))
             add(DocumentsContract.Root.COLUMN_ICON, R.drawable.ic_dolphin)
             add(
                 DocumentsContract.Root.COLUMN_FLAGS,
@@ -73,7 +72,6 @@ class DocumentProvider : DocumentsProvider() {
 
     override fun queryDocument(documentId: String, projection: Array<String>?): Cursor {
         val result = MatrixCursor(projection ?: DEFAULT_DOCUMENT_PROJECTION)
-        rootDirectory = rootDirectory ?: DirectoryInitialization.getUserDirectoryPath(context)
         rootDirectory ?: return result
         val file = documentIdToPath(documentId)
         appendDocument(file, result)
@@ -102,7 +100,9 @@ class DocumentProvider : DocumentsProvider() {
         documentId: String,
         mode: String,
         signal: CancellationSignal?
-    ): ParcelFileDescriptor {
+    ): ParcelFileDescriptor? {
+        rootDirectory ?: return null
+
         val file = documentIdToPath(documentId)
         return ParcelFileDescriptor.open(file, ParcelFileDescriptor.parseMode(mode))
     }
@@ -111,7 +111,9 @@ class DocumentProvider : DocumentsProvider() {
         parentDocumentId: String,
         mimeType: String,
         displayName: String
-    ): String {
+    ): String? {
+        rootDirectory ?: return null
+
         val folder = documentIdToPath(parentDocumentId)
         val file = findFileNameForNewFile(File(folder, displayName))
         if (mimeType == DocumentsContract.Document.MIME_TYPE_DIR) {
@@ -122,56 +124,40 @@ class DocumentProvider : DocumentsProvider() {
         return pathToDocumentId(file)
     }
 
-    override fun copyDocument(sourceDocumentId: String, targetParentDocumentId: String): String {
-        val file = documentIdToPath(sourceDocumentId)
-        val target = documentIdToPath(targetParentDocumentId)
-        val copy = copyRecursively(file, File(target, file.name))
-        return pathToDocumentId(copy)
-    }
+    override fun deleteDocument(documentId: String) {
+        rootDirectory ?: return
 
-    override fun removeDocument(documentId: String, parentDocumentId: String) {
         val file = documentIdToPath(documentId)
         file.deleteRecursively()
     }
 
-    override fun moveDocument(
-        sourceDocumentId: String,
-        sourceParentDocumentId: String,
-        targetParentDocumentId: String
-    ): String {
-        val copy = copyDocument(sourceDocumentId, targetParentDocumentId)
-        val file = documentIdToPath(sourceDocumentId)
-        file.delete()
-        return copy
+    override fun renameDocument(documentId: String, displayName: String): String? {
+        rootDirectory ?: return null
+
+        val file = documentIdToPath(documentId)
+        val dest = findFileNameForNewFile(File(file.parentFile, displayName))
+        file.renameTo(dest)
+        return pathToDocumentId(dest)
     }
 
-    override fun renameDocument(documentId: String, displayName: String): String {
-        val file = documentIdToPath(documentId)
-        file.renameTo(findFileNameForNewFile(File(file.parentFile, displayName)))
-        return pathToDocumentId(file)
-    }
-
-    override fun isChildDocument(parentDocumentId: String, documentId: String): Boolean {
-        val file = documentIdToPath(documentId)
-        val folder = documentIdToPath(parentDocumentId)
-        return file.relativeToOrNull(folder) != null
-    }
+    override fun isChildDocument(parentDocumentId: String, documentId: String): Boolean
+        = documentId.startsWith(parentDocumentId)
 
     private fun appendDocument(file: File, cursor: MatrixCursor) {
         var flags = 0
-        if (file.isDirectory && file.canWrite()) {
-            flags = DocumentsContract.Document.FLAG_DIR_SUPPORTS_CREATE
-        } else if (file.canWrite()) {
-            flags = DocumentsContract.Document.FLAG_SUPPORTS_WRITE
+        if (file.canWrite()) {
+            flags = if (file.isDirectory) {
+                DocumentsContract.Document.FLAG_DIR_SUPPORTS_CREATE
+            } else {
+                DocumentsContract.Document.FLAG_SUPPORTS_WRITE
+            }
             flags = flags or DocumentsContract.Document.FLAG_SUPPORTS_DELETE
-            flags = flags or DocumentsContract.Document.FLAG_SUPPORTS_REMOVE
-            flags = flags or DocumentsContract.Document.FLAG_SUPPORTS_MOVE
-            flags = flags or DocumentsContract.Document.FLAG_SUPPORTS_COPY
             flags = flags or DocumentsContract.Document.FLAG_SUPPORTS_RENAME
+            // The system will handle copy + move for us
         }
 
         val name = if (file == rootDirectory) {
-            context!!.getString(R.string.app_name)
+            context!!.getString(R.string.app_name_suffixed)
         } else {
             file.name
         }
@@ -217,22 +203,6 @@ class DocumentProvider : DocumentsProvider() {
             unusedFile = File("$pathWithoutExtension.$i.$extension")
             i++
         }
-        return file
-    }
-
-    private fun copyRecursively(src: File, dst: File): File {
-        val actualDst = findFileNameForNewFile(dst)
-        if (src.isDirectory) {
-            actualDst.mkdirs()
-            val children = src.listFiles()
-            if (children !== null) {
-                for (file in children) {
-                    copyRecursively(file, File(actualDst, file.name))
-                }
-            }
-        } else {
-            src.copyTo(actualDst)
-        }
-        return actualDst
+        return unusedFile
     }
 }

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/main/MainActivity.java

@@ -77,6 +77,7 @@ public final class MainActivity extends AppCompatActivity
     setInsets();
     ThemeHelper.enableStatusBarScrollTint(this, mBinding.appbarMain);
 
+    mBinding.toolbarMain.setTitle(R.string.app_name);
     setSupportActionBar(mBinding.toolbarMain);
 
     // Set up the FAB.