From 18f41f8327860d7e257d063888d08b6b5c528fe9 Mon Sep 17 00:00:00 2001
From: Winson Chung <winsonc@google.com>
Date: Wed, 9 May 2012 13:28:10 -0700
Subject: [PATCH] More work to ensure that the wallpaper is visible before
 transitions take place. (Bug 6445085)

Change-Id: Ic8435ba946949674a986aa4eaa879d33044c7884
---
 .../launcher2/AppsCustomizePagedView.java     |  4 +++
 src/com/android/launcher2/Launcher.java       | 29 +++++++++++++++----
 2 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/src/com/android/launcher2/AppsCustomizePagedView.java b/src/com/android/launcher2/AppsCustomizePagedView.java
index 5bd0ac655a..54af0803ef 100644
--- a/src/com/android/launcher2/AppsCustomizePagedView.java
+++ b/src/com/android/launcher2/AppsCustomizePagedView.java
@@ -524,6 +524,10 @@ public class AppsCustomizePagedView extends PagedViewWithDraggableItems implemen
                 mPressedIcon.lockDrawableState();
             }
 
+            // NOTE: We want all transitions from launcher to act as if the wallpaper were enabled
+            // to be consistent.  So re-enable the flag here, and we will re-disable it as necessary
+            // when Launcher resumes and we are still in AllApps.
+            mLauncher.updateWallpaperVisibility(true);
             mLauncher.startActivitySafely(v, appInfo.intent, appInfo);
 
         } else if (v instanceof PagedViewWidget) {
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index 0bb119b315..74ec6f3b5e 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -1204,12 +1204,7 @@ public final class Launcher extends Activity
                         mWorkspace.post(new Runnable() {
                             @Override
                             public void run() {
-                                if (mState == State.APPS_CUSTOMIZE) {
-                                    if (mAppsCustomizeTabHost != null &&
-                                            !mAppsCustomizeTabHost.isTransitioning()) {
-                                        updateWallpaperVisibility(false);
-                                    }
-                                }
+                                disableWallpaperIfInAllApps();
                             }
                         });
 
@@ -2191,6 +2186,16 @@ public final class Launcher extends Activity
         view.setPivotY(view.getHeight() / 2.0f);
     }
 
+    void disableWallpaperIfInAllApps() {
+        // Only disable it if we are in all apps
+        if (mState == State.APPS_CUSTOMIZE) {
+            if (mAppsCustomizeTabHost != null &&
+                    !mAppsCustomizeTabHost.isTransitioning()) {
+                updateWallpaperVisibility(false);
+            }
+        }
+    }
+
     void updateWallpaperVisibility(boolean visible) {
         int wpflags = visible ? WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER : 0;
         int curflags = getWindow().getAttributes().flags
@@ -2534,6 +2539,18 @@ public final class Launcher extends Activity
         }
     }
 
+    @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+        if (!hasFocus) {
+            // When another window occludes launcher (like the notification shade, or recents),
+            // ensure that we enable the wallpaper flag so that transitions are done correctly.
+            updateWallpaperVisibility(true);
+        } else {
+            // When launcher has focus again, disable the wallpaper if we are in AllApps
+            disableWallpaperIfInAllApps();
+        }
+    }
+
     void showWorkspace(boolean animated) {
         showWorkspace(animated, null);
     }