Merge "Created a new API to grant scoped directory access to applications."
diff --git a/api/current.txt b/api/current.txt
index facc784..e764994 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -8429,6 +8429,7 @@
     field public static final java.lang.String ACTION_NEW_OUTGOING_CALL = "android.intent.action.NEW_OUTGOING_CALL";
     field public static final java.lang.String ACTION_OPEN_DOCUMENT = "android.intent.action.OPEN_DOCUMENT";
     field public static final java.lang.String ACTION_OPEN_DOCUMENT_TREE = "android.intent.action.OPEN_DOCUMENT_TREE";
+    field public static final java.lang.String ACTION_OPEN_EXTERNAL_DIRECTORY = "android.intent.action.OPEN_EXTERNAL_DIRECTORY";
     field public static final java.lang.String ACTION_PACKAGES_SUSPENDED = "android.intent.action.PACKAGES_SUSPENDED";
     field public static final java.lang.String ACTION_PACKAGES_UNSUSPENDED = "android.intent.action.PACKAGES_UNSUSPENDED";
     field public static final java.lang.String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
diff --git a/api/system-current.txt b/api/system-current.txt
index acdc690..4bd5db5 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -8730,6 +8730,7 @@
     field public static final java.lang.String ACTION_NEW_OUTGOING_CALL = "android.intent.action.NEW_OUTGOING_CALL";
     field public static final java.lang.String ACTION_OPEN_DOCUMENT = "android.intent.action.OPEN_DOCUMENT";
     field public static final java.lang.String ACTION_OPEN_DOCUMENT_TREE = "android.intent.action.OPEN_DOCUMENT_TREE";
+    field public static final java.lang.String ACTION_OPEN_EXTERNAL_DIRECTORY = "android.intent.action.OPEN_EXTERNAL_DIRECTORY";
     field public static final java.lang.String ACTION_PACKAGES_SUSPENDED = "android.intent.action.PACKAGES_SUSPENDED";
     field public static final java.lang.String ACTION_PACKAGES_UNSUSPENDED = "android.intent.action.PACKAGES_UNSUSPENDED";
     field public static final java.lang.String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
diff --git a/api/test-current.txt b/api/test-current.txt
index 3d57bba..d446c4b 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -8434,6 +8434,7 @@
     field public static final java.lang.String ACTION_NEW_OUTGOING_CALL = "android.intent.action.NEW_OUTGOING_CALL";
     field public static final java.lang.String ACTION_OPEN_DOCUMENT = "android.intent.action.OPEN_DOCUMENT";
     field public static final java.lang.String ACTION_OPEN_DOCUMENT_TREE = "android.intent.action.OPEN_DOCUMENT_TREE";
+    field public static final java.lang.String ACTION_OPEN_EXTERNAL_DIRECTORY = "android.intent.action.OPEN_EXTERNAL_DIRECTORY";
     field public static final java.lang.String ACTION_PACKAGES_SUSPENDED = "android.intent.action.PACKAGES_SUSPENDED";
     field public static final java.lang.String ACTION_PACKAGES_UNSUSPENDED = "android.intent.action.PACKAGES_UNSUSPENDED";
     field public static final java.lang.String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 1e7512d..381ea90 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -41,6 +41,7 @@
 import android.graphics.Rect;
 import android.net.Uri;
 import android.os.Bundle;
+import android.os.Environment;
 import android.os.IBinder;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -3186,6 +3187,38 @@
     public static final String
             ACTION_OPEN_DOCUMENT_TREE = "android.intent.action.OPEN_DOCUMENT_TREE";
 
+    /**
+     * Activity Action: Give access to a standard storage directory after obtaining the user's
+     * approval.
+     * <p>
+     * When invoked, the system will ask the user to grant access to the requested directory (and
+     * its descendants).
+     * <p>
+     * To gain access to descendant (child, grandchild, etc) documents, use
+     * {@link DocumentsContract#buildDocumentUriUsingTree(Uri, String)} and
+     * {@link DocumentsContract#buildChildDocumentsUriUsingTree(Uri, String)} with the returned URI.
+     * <p>
+     * Input: full path to a standard directory, in the form of
+     * {@code STORAGE_ROOT + STANDARD_DIRECTORY}, where {@code STORAGE_ROOT} is the physical path of
+     * a storage container, and {@code STANDARD_DIRECTORY} is one of
+     * {@link Environment#DIRECTORY_MUSIC}, {@link Environment#DIRECTORY_PODCASTS},
+     * {@link Environment#DIRECTORY_RINGTONES}, {@link Environment#DIRECTORY_ALARMS},
+     * {@link Environment#DIRECTORY_NOTIFICATIONS}, {@link Environment#DIRECTORY_PICTURES},
+     * {@link Environment#DIRECTORY_MOVIES}, {@link Environment#DIRECTORY_DOWNLOADS},
+     * {@link Environment#DIRECTORY_DCIM}, or {@link Environment#DIRECTORY_DOCUMENTS}
+     * <p>
+     * For example, to open the "Pictures" folder in the default external storage, the intent's data
+     * would be: {@code Uri.fromFile(new File(Environment.getExternalStorageDirectory(),
+     * Environment.DIRECTORY_PICTURES))}.
+     * <p>
+     * Output: The URI representing the requested directory tree.
+     *
+     * @see DocumentsContract
+     */
+    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
+    public static final String
+            ACTION_OPEN_EXTERNAL_DIRECTORY = "android.intent.action.OPEN_EXTERNAL_DIRECTORY";
+
     /** {@hide} */
     public static final String ACTION_MASTER_CLEAR = "android.intent.action.MASTER_CLEAR";
 
diff --git a/core/java/android/os/Environment.java b/core/java/android/os/Environment.java
index 2ca9ab8a..ba215bb 100644
--- a/core/java/android/os/Environment.java
+++ b/core/java/android/os/Environment.java
@@ -390,7 +390,7 @@
      * type.
      */
     public static String DIRECTORY_MUSIC = "Music";
-    
+
     /**
      * Standard directory in which to place any audio files that should be
      * in the list of podcasts that the user can select (not as regular
@@ -479,6 +479,37 @@
     public static String DIRECTORY_DOCUMENTS = "Documents";
 
     /**
+     * List of standard storage directories.
+     * <p>
+     * Each of its values have its own constant:
+     * <ul>
+     *   <li>{@link #DIRECTORY_MUSIC}
+     *   <li>{@link #DIRECTORY_PODCASTS}
+     *   <li>{@link #DIRECTORY_ALARMS}
+     *   <li>{@link #DIRECTORY_RINGTONES}
+     *   <li>{@link #DIRECTORY_NOTIFICATIONS}
+     *   <li>{@link #DIRECTORY_PICTURES}
+     *   <li>{@link #DIRECTORY_MOVIES}
+     *   <li>{@link #DIRECTORY_DOWNLOADS}
+     *   <li>{@link #DIRECTORY_DCIM}
+     *   <li>{@link #DIRECTORY_DOCUMENTS}
+     * </ul>
+     * @hide
+     */
+    public static final String[] STANDARD_DIRECTORIES = {
+            DIRECTORY_MUSIC,
+            DIRECTORY_PODCASTS,
+            DIRECTORY_RINGTONES,
+            DIRECTORY_ALARMS,
+            DIRECTORY_NOTIFICATIONS,
+            DIRECTORY_PICTURES,
+            DIRECTORY_MOVIES,
+            DIRECTORY_DOWNLOADS,
+            DIRECTORY_DCIM,
+            DIRECTORY_DOCUMENTS
+    };
+
+    /**
      * Get a top-level shared/external storage directory for placing files of a
      * particular type. This is where the user will typically place and manage
      * their own files, so you should be careful about what you put here to
@@ -495,13 +526,13 @@
      * </p>
      * {@sample development/samples/ApiDemos/src/com/example/android/apis/content/ExternalStorage.java
      * public_picture}
-     * 
+     *
      * @param type The type of storage directory to return. Should be one of
      *            {@link #DIRECTORY_MUSIC}, {@link #DIRECTORY_PODCASTS},
      *            {@link #DIRECTORY_RINGTONES}, {@link #DIRECTORY_ALARMS},
      *            {@link #DIRECTORY_NOTIFICATIONS}, {@link #DIRECTORY_PICTURES},
-     *            {@link #DIRECTORY_MOVIES}, {@link #DIRECTORY_DOWNLOADS}, or
-     *            {@link #DIRECTORY_DCIM}. May not be null.
+     *            {@link #DIRECTORY_MOVIES}, {@link #DIRECTORY_DOWNLOADS},
+     *            {@link #DIRECTORY_DCIM}, or {@link #DIRECTORY_DOCUMENTS}. May not be null.
      * @return Returns the File path for the directory. Note that this directory
      *         may not yet exist, so you must make sure it exists before using
      *         it such as with {@link File#mkdirs File.mkdirs()}.
@@ -657,7 +688,7 @@
 
     /**
      * Returns the current state of the primary shared/external storage media.
-     * 
+     *
      * @see #getExternalStorageDirectory()
      * @return one of {@link #MEDIA_UNKNOWN}, {@link #MEDIA_REMOVED},
      *         {@link #MEDIA_UNMOUNTED}, {@link #MEDIA_CHECKING},
diff --git a/core/java/android/provider/DocumentsContract.java b/core/java/android/provider/DocumentsContract.java
index a401ac2..88cc8a2 100644
--- a/core/java/android/provider/DocumentsContract.java
+++ b/core/java/android/provider/DocumentsContract.java
@@ -62,7 +62,7 @@
  * All client apps must hold a valid URI permission grant to access documents,
  * typically issued when a user makes a selection through
  * {@link Intent#ACTION_OPEN_DOCUMENT}, {@link Intent#ACTION_CREATE_DOCUMENT},
- * or {@link Intent#ACTION_OPEN_DOCUMENT_TREE}.
+ * {@link Intent#ACTION_OPEN_DOCUMENT_TREE}, or {@link Intent#ACTION_OPEN_EXTERNAL_DIRECTORY}.
  *
  * @see DocumentsProvider
  */