Remove back button when on home screen

Add OverviewInteractionState to handle setting OverviewInteractionFlags.

Hide back button when in NORMAL state and launcher's window is focused.
Show it when in other states or when launcher's window loses focus.

Change-Id: I35919561b9972789e995f1cc434c23e2afe9e77c

2 files changed, 12 insertions, 0 deletions

diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index f6abae8ab..2e0483754 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -855,6 +855,12 @@ public class Launcher extends BaseActivity
         }
     }
 
+    @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+        super.onWindowFocusChanged(hasFocus);
+        mStateManager.onWindowFocusChanged();
+    }
+
     public interface LauncherOverlay {
 
         /**
diff --git a/src/com/android/launcher3/LauncherStateManager.java b/src/com/android/launcher3/LauncherStateManager.java
index 6050d15da..e0b84bf46 100644
--- a/src/com/android/launcher3/LauncherStateManager.java
+++ b/src/com/android/launcher3/LauncherStateManager.java
@@ -303,6 +303,12 @@ public class LauncherStateManager {
         if (state == NORMAL) {
             setRestState(null);
         }
+
+        UiFactory.onLauncherStateOrFocusChanged(mLauncher);
+    }
+
+    public void onWindowFocusChanged() {
+        UiFactory.onLauncherStateOrFocusChanged(mLauncher);
     }
 
     public LauncherState getLastState() {