1 files changed, 95 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/data/UriSource.java b/src/com/android/gallery3d/data/UriSource.java
new file mode 100644
index 000000000..f66bacd7b
--- /dev/null
+++ b/src/com/android/gallery3d/data/UriSource.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.gallery3d.data;
+
+import android.content.ContentResolver;
+import android.net.Uri;
+import android.webkit.MimeTypeMap;
+
+import com.android.gallery3d.app.GalleryApp;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import java.net.URLEncoder;
+
+class UriSource extends MediaSource {
+    @SuppressWarnings("unused")
+    private static final String TAG = "UriSource";
+    private static final String IMAGE_TYPE_PREFIX = "image/";
+    private static final String IMAGE_TYPE_ANY = "image/*";
+    private static final String CHARSET_UTF_8 = "utf-8";
+
+    private GalleryApp mApplication;
+
+    public UriSource(GalleryApp context) {
+        super("uri");
+        mApplication = context;
+    }
+
+    @Override
+    public MediaObject createMediaObject(Path path) {
+        String segment[] = path.split();
+        if (segment.length != 3) {
+            throw new RuntimeException("bad path: " + path);
+        }
+        try {
+            String uri = URLDecoder.decode(segment[1], CHARSET_UTF_8);
+            String type = URLDecoder.decode(segment[2], CHARSET_UTF_8);
+            return new UriImage(mApplication, path, Uri.parse(uri), type);
+        } catch (UnsupportedEncodingException e) {
+            throw new AssertionError(e);
+        }
+    }
+
+    private String getMimeType(Uri uri) {
+        if (ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
+            String extension =
+                    MimeTypeMap.getFileExtensionFromUrl(uri.toString());
+            String type = MimeTypeMap.getSingleton()
+                    .getMimeTypeFromExtension(extension.toLowerCase());
+            if (type != null) return type;
+        }
+        // Assume the type is image if the type cannot be resolved
+        // This could happen for "http" URI.
+        String type = mApplication.getContentResolver().getType(uri);
+        if (type == null) type = "image/*";
+        return type;
+    }
+
+    @Override
+    public Path findPathByUri(Uri uri, String type) {
+        String mimeType = getMimeType(uri);
+
+        // Try to find a most specific type but it has to be started with "image/"
+        if ((type == null) || (IMAGE_TYPE_ANY.equals(type)
+                && mimeType.startsWith(IMAGE_TYPE_PREFIX))) {
+            type = mimeType;
+        }
+
+        if (type.startsWith(IMAGE_TYPE_PREFIX)) {
+            try {
+                return Path.fromString("/uri/"
+                        + URLEncoder.encode(uri.toString(), CHARSET_UTF_8)
+                        + "/" +URLEncoder.encode(type, CHARSET_UTF_8));
+            } catch (UnsupportedEncodingException e) {
+                throw new AssertionError(e);
+            }
+        }
+        // We have no clues that it is an image
+        return null;
+    }
+}