1 files changed, 109 insertions, 0 deletions
diff --git a/packages/SystemUI/src/com/android/systemui/volume/SafetyWarningDialog.java b/packages/SystemUI/src/com/android/systemui/volume/SafetyWarningDialog.java
new file mode 100644
index 0000000..04640a2
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/volume/SafetyWarningDialog.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.volume;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.media.AudioManager;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.WindowManager;
+
+import com.android.systemui.statusbar.phone.SystemUIDialog;
+
+abstract public class SafetyWarningDialog extends SystemUIDialog
+        implements DialogInterface.OnDismissListener, DialogInterface.OnClickListener {
+
+    private static final String TAG = Util.logTag(SafetyWarningDialog.class);
+
+    private static final int KEY_CONFIRM_ALLOWED_AFTER = 1000; // milliseconds
+
+    private final Context mContext;
+    private final AudioManager mAudioManager;
+
+    private long mShowTime;
+    private boolean mNewVolumeUp;
+
+    public SafetyWarningDialog(Context context, AudioManager audioManager) {
+        super(context);
+        mContext = context;
+        mAudioManager = audioManager;
+
+        getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ERROR);
+        setMessage(mContext.getString(com.android.internal.R.string.safe_media_volume_warning));
+        setButton(DialogInterface.BUTTON_POSITIVE,
+                mContext.getString(com.android.internal.R.string.yes), this);
+        setButton(DialogInterface.BUTTON_NEGATIVE,
+                mContext.getString(com.android.internal.R.string.no), (OnClickListener) null);
+        setOnDismissListener(this);
+
+        final IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
+        context.registerReceiver(mReceiver, filter);
+    }
+
+    abstract protected void cleanUp();
+
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_VOLUME_UP && event.getRepeatCount() == 0) {
+            mNewVolumeUp = true;
+        }
+        return super.onKeyDown(keyCode, event);
+    }
+
+    @Override
+    public boolean onKeyUp(int keyCode, KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_VOLUME_UP && mNewVolumeUp
+                && (System.currentTimeMillis() - mShowTime) > KEY_CONFIRM_ALLOWED_AFTER) {
+            if (D.BUG) Log.d(TAG, "Confirmed warning via VOLUME_UP");
+            mAudioManager.disableSafeMediaVolume();
+            dismiss();
+        }
+        return super.onKeyUp(keyCode, event);
+    }
+
+    @Override
+    public void onClick(DialogInterface dialog, int which) {
+        mAudioManager.disableSafeMediaVolume();
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+        mShowTime = System.currentTimeMillis();
+    }
+
+    @Override
+    public void onDismiss(DialogInterface unused) {
+        mContext.unregisterReceiver(mReceiver);
+        cleanUp();
+    }
+
+    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (Intent.ACTION_CLOSE_SYSTEM_DIALOGS.equals(intent.getAction())) {
+                if (D.BUG) Log.d(TAG, "Received ACTION_CLOSE_SYSTEM_DIALOGS");
+                cancel();
+                cleanUp();
+            }
+        }
+    };
+}
+\ No newline at end of file