Android: handle move operation with content uris

Allow moving content uris if the destination is provided
a full content uri with a parent that's different from the
source content uri (i.e. different folders).

Note: since the underlaying Android APIs don't always know about
the parent of a uri, we do some step to deduce that, but that's
not always guaranteed to work.

Task-number: QTBUG-98974
Change-Id: If21954e5963f4eb0b96c7ccd983943ea2cab5b24
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
(cherry picked from commit c203ec2720b694fd877512da531a227e0f3310cb)

src/plugins/platforms/android/androidcontentfileengine.cpp

@@ -442,6 +442,7 @@ const QLatin1String COLUMN_SIZE("_size");
 
 constexpr int FLAG_DIR_SUPPORTS_CREATE = 0x00000008;
 constexpr int FLAG_SUPPORTS_DELETE = 0x00000004;
+constexpr int FLAG_SUPPORTS_MOVE = 0x00000100;
 constexpr int FLAG_SUPPORTS_RENAME = 0x00000040;
 constexpr int FLAG_SUPPORTS_WRITE = 0x00000002;
 constexpr int FLAG_VIRTUAL_DOCUMENT = 0x00000200;
@@ -526,6 +527,23 @@ bool deleteDocument(const QJniObject &documentUri)
                                                   documentUri.object());
 }
 
+QJniObject moveDocument(const QJniObject &sourceDocumentUri,
+                      const QJniObject &sourceParentDocumentUri,
+                      const QJniObject &targetParentDocumentUri)
+{
+    const int flags = Cursor::queryColumn(sourceDocumentUri, Document::COLUMN_FLAGS).toInt();
+    if (!(flags & Document::FLAG_SUPPORTS_MOVE))
+        return {};
+
+    return QJniObject::callStaticObjectMethod("android/provider/DocumentsContract",
+                                              "moveDocument",
+                                              "(Landroid/content/ContentResolver;Landroid/net/Uri;Landroid/net/Uri;Landroid/net/Uri;)Landroid/net/Uri;",
+                                              contentResolverInstance().object(),
+                                              sourceDocumentUri.object(),
+                                              sourceParentDocumentUri.object(),
+                                              targetParentDocumentUri.object());
+}
+
 QJniObject renameDocument(const QJniObject &documentUri, const QString &displayName)
 {
     const int flags = Cursor::queryColumn(documentUri, Document::COLUMN_FLAGS).toInt();
@@ -778,6 +796,12 @@ bool DocumentFile::rename(const QString &newName)
                 displayName.remove(0, 3);
 
             uri = renameDocument(m_uri, displayName);
+        } else {
+            // Move
+            QJniObject srcParentUri = fromTreeUri(parseUri(parent))->uri();
+            const QString destParent = newName.left(lastSeparatorIndex(newName));
+            QJniObject targetParentUri = fromTreeUri(parseUri(destParent))->uri();
+            uri = moveDocument(m_uri, srcParentUri, targetParentUri);
         }
     } else {
         uri = renameDocument(m_uri, newName);

tests/manual/android_content_uri/tst_content_uris.cpp

@@ -196,31 +196,58 @@ void tst_ContentUris::fileOperations()
     QVERIFY(file.exists());
 
     // Rename
-    const QString renamedFileName = "renamed_new_file.txt";
+    {
-    QVERIFY(file.rename(renamedFileName));
+        const QString renamedFileName = "renamed_new_file.txt";
-    const auto renamedUrl = url.replace(fileName, renamedFileName);
+        QVERIFY(file.rename(renamedFileName));
-    QVERIFY(file.fileName() == renamedUrl);
+        const auto renamedUrl = url.replace(fileName, renamedFileName);
+        QVERIFY(file.fileName() == renamedUrl);
 
-    // NOTE: The uri doesn't seem to stay usable after a rename and it needs to get
+        // NOTE: The uri doesn't seem to stay usable after a rename and it needs to get
-    // permission again via the SAF picker.
+        // permission again via the SAF picker.
-    showInstructionsDialog("Choose the file that was renamed");
+        showInstructionsDialog("Choose the file that was renamed");
-    QFileDialog::getOpenFileName(nullptr, tr("Open File"));
+        QFileDialog::getOpenFileName(nullptr, tr("Open File"));
-    QVERIFY(file.exists());
+        QVERIFY(file.exists());
 
-    // rename now with full content uri
+        // rename now with full content uri
-    const auto secondRenamedUrl = url.replace(renamedFileName, "second_nenamed_file.txt");
+        const auto secondRenamedUrl = url.replace(renamedFileName, "second_nenamed_file.txt");
-    QVERIFY(file.rename(secondRenamedUrl));
+        QVERIFY(file.rename(secondRenamedUrl));
-    QVERIFY(file.fileName() == secondRenamedUrl);
+        QVERIFY(file.fileName() == secondRenamedUrl);
 
-    // NOTE: The uri doesn't seem to stay usable after a rename and it needs to get
+        // NOTE: The uri doesn't seem to stay usable after a rename and it needs to get
-    // permission again via the SAF picker.
+        // permission again via the SAF picker.
-    showInstructionsDialog("Choose the file that was renamed");
+        showInstructionsDialog("Choose the file that was renamed");
-    QFileDialog::getOpenFileName(nullptr, tr("Open File"));
+        QFileDialog::getOpenFileName(nullptr, tr("Open File"));
-    QVERIFY(file.exists());
+        QVERIFY(file.exists());
+    }
 
     // Remove
     QVERIFY(file.remove());
     QVERIFY(!file.exists());
+
+    // Move
+    {
+        showInstructionsDialog("Choose source directory of file to move");
+        const QString srcDir = QFileDialog::getExistingDirectory(nullptr, tr("Choose Directory"));
+
+        const QString fileName = "file_to_move.txt"_L1;
+
+        // Create a file
+        QFile file(srcDir + u'/' + fileName);
+        QVERIFY(file.open(QFile::WriteOnly));
+        QVERIFY(file.exists());
+
+        showInstructionsDialog("Choose target directory to where to move the file");
+        const QString destDir = QFileDialog::getExistingDirectory(nullptr, tr("Choose Directory"));
+
+        QVERIFY(file.rename(destDir  + u'/' + fileName));
+
+        // NOTE: The uri doesn't seem to stay usable after a rename and it needs to get
+        // permission again via the SAF picker.
+        showInstructionsDialog("Choose the file that was moved");
+        QFileDialog::getOpenFileName(nullptr, tr("Open File"));
+
+        QVERIFY(file.remove());
+    }
 }
 
 QTEST_MAIN(tst_ContentUris)