Cleanup notification bar flashlight widget to use Torch app,

and add state storage for flashlight.

Change-Id: I6d4ad46318a7593809e7ff63601f8bd70db64a0c

3 files changed, 13 insertions, 96 deletions

diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index b0e0b1e..0bc241e 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -2396,6 +2396,12 @@ public final class Settings {
         public static final String LOCKSCREEN_GESTURES_COLOR = "lockscreen_gestures_color";
 
         /**
+         * Torch state (flashlight)
+         * @hide
+         */
+        public static final String TORCH_STATE = "torch_state";
+
+        /**
          * Settings to backup. This is here so that it's in the same place as the settings
          * keys and easy to update.
          * @hide
diff --git a/services/java/com/android/server/status/StatusBarService.java b/services/java/com/android/server/status/StatusBarService.java
index 683e634..18154a5 100644
--- a/services/java/com/android/server/status/StatusBarService.java
+++ b/services/java/com/android/server/status/StatusBarService.java
@@ -2330,6 +2330,10 @@ public class StatusBarService extends IStatusBar.Stub
             resolver.registerContentObserver(
                     Settings.System.getUriFor(Settings.System.WIDGET_BUTTONS),
                          false, this);
+
+            resolver.registerContentObserver(
+                    Settings.System.getUriFor(Settings.System.TORCH_STATE),
+                         false, this);
         }
 
         @Override
diff --git a/services/java/com/android/server/status/widget/FlashlightButton.java b/services/java/com/android/server/status/widget/FlashlightButton.java
index eb25cf0..d4a9b10 100644
--- a/services/java/com/android/server/status/widget/FlashlightButton.java
+++ b/services/java/com/android/server/status/widget/FlashlightButton.java
@@ -5,46 +5,14 @@ import com.android.server.status.widget.PowerButton;
 
 import android.content.ContentResolver;
 import android.content.Context;
+import android.content.Intent;
 import android.provider.Settings;
-import android.util.Log;
-import android.os.Build;
-
-import java.util.concurrent.Executors;
-import java.util.concurrent.ExecutorService;
-import java.lang.Thread;
-import java.lang.Runnable;
-import java.io.File;
-import java.io.FileWriter;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
 
 public class FlashlightButton extends PowerButton {
 
     Context mContext;
-
     static FlashlightButton ownButton;
     private static final String TAG = "FlashlightButton";
-    private static int currentMode;
-
-    private static FileWriter mWriter;
-
-    private static ExecutorService threadExecutor;
-    private static boolean runTimer = false;
-
-    private static final int MODE_DEFAULT = 0;
-    private static final int MODE_HIGH = 1;
-    private static boolean useDeathRay = !Build.DEVICE.equals("supersonic");;
-
-    private static final String FLASHLIGHT_FILE;
-    private static final String FLASHLIGHT_FILE_SPOTLIGHT = "/sys/class/leds/spotlight/brightness";
-    static {
-        File ff = new File(FLASHLIGHT_FILE_SPOTLIGHT);
-        if (ff.exists()) {
-            FLASHLIGHT_FILE = FLASHLIGHT_FILE_SPOTLIGHT;
-        } else {
-            FLASHLIGHT_FILE = "/sys/class/leds/flashlight/brightness";
-        }
-    }
 
     public void updateState(Context context) {
         mContext = context;
@@ -69,80 +37,19 @@ public class FlashlightButton extends PowerButton {
     }
 
     public void toggleState(Context context) {
-        currentMode = Settings.System.getInt(context.getContentResolver(), Settings.System.EXPANDED_FLASH_MODE,
-                    MODE_DEFAULT);
-        boolean enabled = getFlashlightEnabled();
-        runTimer = !enabled;
-        setFlashlightEnabled(!enabled);
+        mContext.sendBroadcast(new Intent("net.cactii.flash2.TOGGLE_FLASHLIGHT"));
     }
 
     public static FlashlightButton getInstance() {
         if (ownButton==null) ownButton = new FlashlightButton();
-
         return ownButton;
     }
 
 
     public boolean getFlashlightEnabled() {
-        try {
-            FileInputStream fis = new FileInputStream(FLASHLIGHT_FILE);
-            int result = fis.read();
-            fis.close();
-            return (result != '0');
-        } catch (Exception e) {
-            return false;
-        }
-    }
-
-    public void setFlashlightEnabled(boolean on) {
-        try {
-            if (mWriter == null) {
-                mWriter = new FileWriter(FLASHLIGHT_FILE);
-            }
-            int value = 0;
-            if (on) {
-                switch (currentMode) {
-                    case MODE_HIGH:
-                        value = useDeathRay ? 3 : 128;
-                        break;
-                    default:
-                        value = 1;
-                        break;
-                }
-            }
-            mWriter.write(String.valueOf(value));
-            mWriter.flush();
-            if (!on) {
-                mWriter.close();
-                mWriter = null;
-            }
-        } catch (Exception e) {
-            Log.e(TAG, "setFlashlightEnabled failed", e);
-        }
-        startTimer(on);
-    }
-
-    private void startTimer(boolean on) {
-        if (!on) return;
-        if (threadExecutor == null) threadExecutor = Executors.newSingleThreadExecutor();
-
-        flashTimer timerRun = new flashTimer();
-        threadExecutor.execute(timerRun);
+        return Settings.System.getInt(mContext.getContentResolver(), Settings.System.TORCH_STATE, 0) == 1;
     }
 
-    public class flashTimer implements Runnable {
-        public flashTimer() {
-        }
-        public void run() {
-            try {
-                Thread.sleep(200);
-            } catch (InterruptedException e) {
-            }
-            setFlashlightEnabled(runTimer);
-        }
-    }
-
-
     @Override
     void initButton(int position) {
     }