Add file engine for Android content URLs

The "file dialog" on Android returns such URLs, which so far required
special-casing this in application code. With this change QFile can
consume those URLs directly.

Change-Id: I489c0db112cf1dc7497e7a90f0e9a79ea8fa5237
Reviewed-by: Nicolas Fella <nicolas.fella@kdab.com>
Reviewed-by: BogDan Vatra <bogdan@kdab.com>
Reviewed-by: Aleix Pol Gonzalez <aleixpol@kde.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/android/jar/src/org/qtproject/qt5/android/QtNative.java b/src/android/jar/src/org/qtproject/qt5/android/QtNative.java
index 5562c010aa..c5e8a5f794 100644
--- a/src/android/jar/src/org/qtproject/qt5/android/QtNative.java
+++ b/src/android/jar/src/org/qtproject/qt5/android/QtNative.java
@@ -41,6 +41,7 @@
 package org.qtproject.qt5.android;
 
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.util.ArrayList;
 import java.util.concurrent.Semaphore;
 
@@ -59,6 +60,7 @@ import android.os.Looper;
 import android.content.ClipboardManager;
 import android.content.ClipboardManager.OnPrimaryClipChangedListener;
 import android.content.ClipData;
+import android.os.ParcelFileDescriptor;
 import android.util.Log;
 import android.view.ContextMenu;
 import android.view.KeyEvent;
@@ -168,6 +170,17 @@ public class QtNative
         return ok;
     }
 
+    public static int openFdForContentUrl(Context context, String contentUrl, String openMode)
+    {
+        try {
+            ContentResolver resolver = context.getContentResolver();
+            ParcelFileDescriptor fdDesc = resolver.openFileDescriptor(Uri.parse(contentUrl), openMode);
+            return fdDesc.detachFd();
+        } catch (FileNotFoundException e) {
+            return -1;
+        }
+    }
+
     // this method loads full path libs
     public static void loadQtLibraries(final ArrayList<String> libraries)
     {