Fix not to launch MusicActivity directly

When default panel is not saved in the preference, Redirector will
launch MusicActivity directly.

Search enable app as control panel if default panel is not saved.

Bug: 30684724
Test: MusicFX can be launched
Change-Id: I87cf6afdb13137c6ad599f0c14ea12988aa83ea4

1 files changed, 24 insertions, 8 deletions

diff --git a/src/com/android/musicfx/Compatibility.java b/src/com/android/musicfx/Compatibility.java
index 107e132..53d8729 100644
--- a/src/com/android/musicfx/Compatibility.java
+++ b/src/com/android/musicfx/Compatibility.java
@@ -69,12 +69,19 @@ public class Compatibility {
             log("read " + defPackage + "/" + defName + " as default");
             if (defPackage == null || defName == null) {
                 Log.e(TAG, "no default set!");
+                ResolveInfo defPanel = Service.searchControlPanel(this, null);
+                if (defPanel == null) {
+                    finish();
+                    return;
+                }
+                defPackage = defPanel.activityInfo.packageName;
+                defName = defPanel.activityInfo.name;
                 // use the built-in panel
-                i.setComponent(new ComponentName(this, ActivityMusic.class));
+                i.setComponent(new ComponentName(defPackage, defName));
                 // also save it as the default
                 Intent updateIntent = new Intent(this, Service.class);
-                updateIntent.putExtra("defPackage", getPackageName());
-                updateIntent.putExtra("defName", ActivityMusic.class.getName());
+                updateIntent.putExtra("defPackage", defPackage);
+                updateIntent.putExtra("defName", defName);
                 startService(updateIntent);
             } else {
                 i.setComponent(new ComponentName(defPackage, defName));
@@ -141,15 +148,16 @@ public class Compatibility {
             }
         }
 
-        private void pickDefaultControlPanel(String updatedPackage) {
+        private static final ResolveInfo searchControlPanel(Context context, String updatedPackage) {
 
             ResolveInfo defPanel = null;
             ResolveInfo otherPanel = null;
             ResolveInfo thisPanel = null;
             Intent i = new Intent(AudioEffect.ACTION_DISPLAY_AUDIO_EFFECT_CONTROL_PANEL);
-            List<ResolveInfo> ris = mPackageManager.queryIntentActivities(i, PackageManager.GET_DISABLED_COMPONENTS);
+            List<ResolveInfo> ris = context.getPackageManager().queryIntentActivities(
+                                    i, PackageManager.GET_DISABLED_COMPONENTS);
             log("found: " + ris.size());
-            SharedPreferences pref = getSharedPreferences("musicfx", MODE_PRIVATE);
+            SharedPreferences pref = context.getSharedPreferences("musicfx", Context.MODE_PRIVATE);
             String savedDefPackage = pref.getString("defaultpanelpackage", null);
             String savedDefName = pref.getString("defaultpanelname", null);
             log("saved default: " + savedDefName);
@@ -168,7 +176,8 @@ public class Compatibility {
                 } else if (foo.activityInfo.packageName.equals(updatedPackage)) {
                     log("choosing newly installed package " + updatedPackage);
                     otherPanel = foo;
-                } else if (otherPanel == null && !foo.activityInfo.packageName.equals(getPackageName())) {
+                } else if (otherPanel == null &&
+                        !foo.activityInfo.packageName.equals(context.getPackageName())) {
                     otherPanel = foo;
                 } else {
                     thisPanel = foo;
@@ -180,13 +189,20 @@ public class Compatibility {
                 if (otherPanel == null) {
                     if (thisPanel == null) {
                         Log.e(TAG, "No control panels found!");
-                        return;
+                        return null;
                     }
                     otherPanel = thisPanel;
                 }
                 defPanel = otherPanel;
             }
+            return defPanel;
+        }
 
+        private void pickDefaultControlPanel(String updatedPackage) {
+            ResolveInfo defPanel = searchControlPanel(this, updatedPackage);
+            if (defPanel == null) {
+                return;
+            }
             // Now that we have selected a default control panel activity, ensure
             // that the broadcast receiver(s) in that same package are enabled,
             // and the ones in the other packages are disabled.