Fix 3462852 [UI] When linking from Camera preview - App icon with 'Up' arrow should go to next level up.

Some changes in this CL:

1. ActivityState can decide whether to enable home button and show up arrow
2. ActivityState can handle home_up event on its own
3. Support getContentUri in LocalAlbum (Image/Video Roll) and LocalMergeAlbum (Camera Roll)
4. Gallery supports view action for AlbumPage (Camera Roll)

Change-Id: I85a75cdce9cbc2a877651fdec34a0180ed8e785c

1 files changed, 11 insertions, 0 deletions

diff --git a/src/com/android/gallery3d/app/GalleryActionBar.java b/src/com/android/gallery3d/app/GalleryActionBar.java
index 93b6e8b1e..35cb8b4cb 100644
--- a/src/com/android/gallery3d/app/GalleryActionBar.java
+++ b/src/com/android/gallery3d/app/GalleryActionBar.java
@@ -210,6 +210,17 @@ public class GalleryActionBar implements ActionBar.OnNavigationListener {
         }).create().show();
     }
 
+    public void setDisplayOptions(boolean displayHomeAsUp, boolean showTitle) {
+        if (mActionBar != null) {
+            int options = (displayHomeAsUp ? ActionBar.DISPLAY_HOME_AS_UP : 0) |
+                    (showTitle ? ActionBar.DISPLAY_SHOW_TITLE : 0);
+            mActionBar.setDisplayOptions(
+                    options,
+                    ActionBar.DISPLAY_HOME_AS_UP | ActionBar.DISPLAY_SHOW_TITLE);
+            mActionBar.setHomeButtonEnabled(displayHomeAsUp);
+        }
+    }
+
     public void setTitle(String title) {
         if (mActionBar != null) mActionBar.setTitle(title);
     }