STK: Add support for idle screen(home screen)

Treat home screen(Launcher screen) as the idle screen
for the purpose of stk.

Change-Id: Ic4511b272e216d8e0e7ce99eb0db338d4a65cd60

3 files changed, 18 insertions, 3 deletions

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 1cac861..acd1e5c 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -108,6 +108,7 @@
                 <action android:name= "android.intent.action.stk.icc_status_change" />
                 <action android:name= "android.intent.action.stk.alpha_notify" />
                 <action android:name= "android.intent.action.LOCALE_CHANGED" />
+                <action android:name= "org.codeaurora.action.stk.idle_screen"/>
             </intent-filter>
         </receiver>
 
diff --git a/src/com/android/stk/StkAppService.java b/src/com/android/stk/StkAppService.java
index 71c657f..5760599 100755
--- a/src/com/android/stk/StkAppService.java
+++ b/src/com/android/stk/StkAppService.java
@@ -247,6 +247,7 @@ public class StkAppService extends Service implements Runnable {
     static final int STATE_EXIST = 1;
 
     private static final String PACKAGE_NAME = "com.android.stk";
+    private static final String PACKAGE_NAME_HOME_SCREEN="com.android.launcher";
     private static final String STK_MENU_ACTIVITY_NAME = PACKAGE_NAME + ".StkMenuActivity";
     private static final String STK_INPUT_ACTIVITY_NAME = PACKAGE_NAME + ".StkInputActivity";
     private static final String STK_DIALOG_ACTIVITY_NAME = PACKAGE_NAME + ".StkDialogActivity";
@@ -254,6 +255,10 @@ public class StkAppService extends Service implements Runnable {
     private static final int STK_NOTIFICATION_ID = 333;
     private static final String LOG_TAG = new Object(){}.getClass().getEnclosingClass().getName();
 
+    // Broadcast sent from Launcher when the screen switched to idle state(home screen).
+    public static final String CAT_IDLE_SCREEN_ACTION =
+                                    "org.codeaurora.action.stk.idle_screen";
+
     // Inner class used for queuing telephony messages (proactive commands,
     // session end) while the service is busy processing a previous message.
     private class DelayedCmd {
@@ -681,11 +686,20 @@ public class StkAppService extends Service implements Runnable {
     }
 
     /*
-     * If the device is not in an interactive state, we can assume
+     * If the device is on home screen, we can assume
      * that the screen is idle.
      */
     private boolean isScreenIdle() {
-        return (!mPowerManager.isInteractive());
+        ActivityManager mAcivityManager = (ActivityManager) mContext
+                .getSystemService(ACTIVITY_SERVICE);
+        String currentPackageName = mAcivityManager.getRunningTasks(1).get(0).topActivity
+                .getPackageName();
+        CatLog.d(this, "isScreenIdle, package name : " + currentPackageName);
+        if (null != currentPackageName) {
+            return currentPackageName.equals(PACKAGE_NAME_HOME_SCREEN);
+        }
+
+        return false;
     }
 
     private void handleIdleScreen(int slotId) {
diff --git a/src/com/android/stk/StkCmdReceiver.java b/src/com/android/stk/StkCmdReceiver.java
index 508e7f8..217f7b7 100644
--- a/src/com/android/stk/StkCmdReceiver.java
+++ b/src/com/android/stk/StkCmdReceiver.java
@@ -46,7 +46,7 @@ public class StkCmdReceiver extends BroadcastReceiver {
             handleLocaleChange(context);
         } else if (action.equals(AppInterface.CAT_ALPHA_NOTIFY_ACTION)) {
             handleAction(context, intent, StkAppService.OP_ALPHA_NOTIFY);
-        } else if (action.equals(Intent.ACTION_SCREEN_OFF)) {
+        } else if (action.equals(StkAppService.CAT_IDLE_SCREEN_ACTION)) {
             handleIdleScreen(context);
         }
     }