Add native content sharing support for iOS and Android

modules/juce_core/native/java/AndroidSharingContentProvider.java

@@ -0,0 +1,138 @@
+package com.juce;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.res.AssetFileDescriptor;
+import android.content.res.Resources;
+import android.database.Cursor;
+import android.database.MatrixCursor;
+import android.net.Uri;
+import android.os.FileObserver;
+import android.os.ParcelFileDescriptor;
+import java.lang.String;
+
+public final class SharingContentProvider extends ContentProvider
+{
+    private Object lock = new Object();
+
+    private native void contentSharerFileObserverEvent (long host, int event, String path);
+
+    private native Cursor contentSharerQuery (Uri uri, String[] projection, String selection,
+                                              String[] selectionArgs, String sortOrder);
+
+    private native void contentSharerCursorClosed (long host);
+
+    private native AssetFileDescriptor contentSharerOpenFile (Uri uri, String mode);
+    private native String[] contentSharerGetStreamTypes (Uri uri, String mimeTypeFilter);
+
+    public final class ProviderFileObserver extends FileObserver
+    {
+        public ProviderFileObserver (long hostToUse, String path, int mask)
+        {
+            super (path, mask);
+
+            host = hostToUse;
+        }
+
+        public void onEvent (int event, String path)
+        {
+            contentSharerFileObserverEvent (host, event, path);
+        }
+
+        private long host;
+    }
+
+    public final class ProviderCursor extends MatrixCursor
+    {
+        ProviderCursor (long hostToUse, String[] columnNames)
+        {
+            super (columnNames);
+
+            host = hostToUse;
+        }
+
+        @Override
+        public void close()
+        {
+            super.close();
+
+            contentSharerCursorClosed (host);
+        }
+
+        private long host;
+    }
+
+    @Override
+    public boolean onCreate()
+    {
+        return true;
+    }
+
+    @Override
+    public Cursor query (Uri url, String[] projection, String selection,
+                         String[] selectionArgs, String sortOrder)
+    {
+        synchronized (lock)
+        {
+            return contentSharerQuery (url, projection, selection, selectionArgs, sortOrder);
+        }
+    }
+
+    @Override
+    public Uri insert (Uri uri, ContentValues values)
+    {
+        return null;
+    }
+
+    @Override
+    public int update (Uri uri, ContentValues values, String selection,
+                       String[] selectionArgs)
+    {
+        return 0;
+    }
+
+    @Override
+    public int delete (Uri uri, String selection, String[] selectionArgs)
+    {
+        return 0;
+    }
+
+    @Override
+    public String getType (Uri uri)
+    {
+        return null;
+    }
+
+    @Override
+    public AssetFileDescriptor openAssetFile (Uri uri, String mode)
+    {
+        synchronized (lock)
+        {
+            return contentSharerOpenFile (uri, mode);
+        }
+    }
+
+    @Override
+    public ParcelFileDescriptor openFile (Uri uri, String mode)
+    {
+        synchronized (lock)
+        {
+            AssetFileDescriptor result = contentSharerOpenFile (uri, mode);
+
+            if (result != null)
+                return result.getParcelFileDescriptor();
+
+            return null;
+        }
+    }
+$$ContentProviderApi11
+    @Override
+    public String[] getStreamTypes (Uri uri, String mimeTypeFilter)
+    {
+        synchronized (lock)
+        {
+            return contentSharerGetStreamTypes (uri, mimeTypeFilter);
+        }
+    }
+ContentProviderApi11$$
+}