Autolaunch when active tab has 1 target and inactive tab has 0 targets.

Also fixes bug where we autolaunch without waiting for the inactive
tab list to load. If the inactive tab's targets are 0 since they
are not loaded, if the active tab's targets are 1, it would
incorrectly autolaunch.

Test: manually tried attaching a file in gmail with no cross-profile
intents
Fixes: 149383054
Change-Id: I1a2455088762dce7265ae4b7ad2c6bc8b217f99e

core/java/com/android/internal/app/ResolverActivity.java

@@ -1278,10 +1278,9 @@ public class ResolverActivity extends Activity implements
             throw new IllegalStateException("mMultiProfilePagerAdapter.getCurrentListAdapter() "
                     + "cannot be null.");
         }
-        boolean rebuildCompleted = mMultiProfilePagerAdapter.rebuildActiveTab(true);
-
         // We partially rebuild the inactive adapter to determine if we should auto launch
-        mMultiProfilePagerAdapter.rebuildInactiveTab(false);
+        boolean rebuildActiveCompleted = mMultiProfilePagerAdapter.rebuildActiveTab(true);
+        boolean rebuildInactiveCompleted = mMultiProfilePagerAdapter.rebuildInactiveTab(false);
 
         if (useLayoutWithDefault()) {
             mLayoutId = R.layout.resolver_list_with_default;
@@ -1290,7 +1289,7 @@ public class ResolverActivity extends Activity implements
         }
         setContentView(mLayoutId);
         mMultiProfilePagerAdapter.setupViewPager(findViewById(R.id.profile_pager));
-        return postRebuildList(rebuildCompleted);
+        return postRebuildList(rebuildActiveCompleted && rebuildInactiveCompleted);
     }
 
     /**
@@ -1338,10 +1337,11 @@ public class ResolverActivity extends Activity implements
         int numberOfProfiles = mMultiProfilePagerAdapter.getItemCount();
         if (numberOfProfiles == 1 && maybeAutolaunchIfSingleTarget()) {
             return true;
-        } else if (numberOfProfiles == 2 && maybeAutolaunchIfCrossProfileSupported()) {
-            // note that autolaunching when we have 2 profiles, 1 resolved target on the active
-            // tab and 0 resolved targets on the inactive tab, is already handled before launching
-            // ResolverActivity
+        } else if (numberOfProfiles == 2
+                && mMultiProfilePagerAdapter.getActiveListAdapter().isListLoaded()
+                && mMultiProfilePagerAdapter.getInactiveListAdapter().isListLoaded()
+                && (maybeAutolaunchIfNoAppsOnInactiveTab()
+                        || maybeAutolaunchIfCrossProfileSupported())) {
             return true;
         }
         return false;
@@ -1364,6 +1364,23 @@ public class ResolverActivity extends Activity implements
         return false;
     }
 
+    private boolean maybeAutolaunchIfNoAppsOnInactiveTab() {
+        int count = mMultiProfilePagerAdapter.getActiveListAdapter().getUnfilteredCount();
+        if (count != 1) {
+            return false;
+        }
+        ResolverListAdapter inactiveListAdapter =
+                mMultiProfilePagerAdapter.getInactiveListAdapter();
+        if (inactiveListAdapter.getUnfilteredCount() != 0) {
+            return false;
+        }
+        TargetInfo target = mMultiProfilePagerAdapter.getActiveListAdapter()
+                .targetInfoForPosition(0, false);
+        safelyStartActivity(target);
+        finish();
+        return true;
+    }
+
     /**
      * When we have a personal and a work profile, we auto launch in the following scenario:
      * - There is 1 resolved target on each profile

core/java/com/android/internal/app/ResolverListAdapter.java

@@ -87,6 +87,7 @@ public class ResolverListAdapter extends BaseAdapter {
     private final ResolverListCommunicator mResolverListCommunicator;
     private Runnable mPostListReadyRunnable;
     private final boolean mIsAudioCaptureDevice;
+    private boolean mIsListLoaded;
 
     public ResolverListAdapter(Context context, List<Intent> payloadIntents,
             Intent[] initialIntents, List<ResolveInfo> rList,
@@ -191,6 +192,7 @@ public class ResolverListAdapter extends BaseAdapter {
         mLastChosenPosition = -1;
         mAllTargetsAreBrowsers = false;
         mDisplayList.clear();
+        mIsListLoaded = false;
 
         if (mBaseResolveList != null) {
             currentResolveList = mUnfilteredResolveList = new ArrayList<>();
@@ -352,6 +354,7 @@ public class ResolverListAdapter extends BaseAdapter {
 
         mResolverListCommunicator.sendVoiceChoicesIfNeeded();
         postListReadyRunnable(doPostProcessing);
+        mIsListLoaded = true;
     }
 
     /**
@@ -611,6 +614,10 @@ public class ResolverListAdapter extends BaseAdapter {
         return mIntents;
     }
 
+    protected boolean isListLoaded() {
+        return mIsListLoaded;
+    }
+
     /**
      * Necessary methods to communicate between {@link ResolverListAdapter}
      * and {@link ResolverActivity}.