1 files changed, 103 insertions, 0 deletions
diff --git a/core/java/com/android/internal/widget/TransportControlView.java b/core/java/com/android/internal/widget/TransportControlView.java
new file mode 100644
index 0000000..3961de3
--- /dev/null
+++ b/core/java/com/android/internal/widget/TransportControlView.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2011 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.internal.widget;
+
+import com.android.internal.R;
+
+import android.content.Context;
+import android.media.AudioManager;
+import android.os.Handler;
+import android.os.Message;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.LinearLayout;
+
+/**
+ * A special widget for displaying audio playback ("transport controls") in LockScreen.
+ *
+ */
+public class TransportControlView extends LinearLayout implements LockScreenWidgetInterface,
+        OnClickListener {
+    private static final String TAG = "TransportControlView";
+    static final int sViewIds[] = { R.id.control_prev, R.id.control_pauseplay, R.id.control_next };
+    protected static final int AUDIO_FOCUS_CHANGED = 100;
+    private LockScreenWidgetCallback mCallback;
+
+    private Handler mHandler = new Handler() {
+        public void handleMessage(Message msg) {
+            switch (msg.what){
+            case AUDIO_FOCUS_CHANGED:
+                handleAudioFocusChange(msg.arg1);
+            }
+        }
+    };
+
+    AudioManager.OnAudioFocusChangeListener mAudioFocusChangeListener =
+        new AudioManager.OnAudioFocusChangeListener() {
+            public void onAudioFocusChange(final int focusChange) {
+                mHandler.obtainMessage(AUDIO_FOCUS_CHANGED, focusChange, 0).sendToTarget();
+            }
+        };
+
+    public TransportControlView(Context context) {
+        this(context, null);
+    }
+
+    public TransportControlView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    protected void handleAudioFocusChange(int focusChange) {
+        // TODO
+    }
+
+    public void setCallback(LockScreenWidgetCallback callback) {
+        mCallback = callback;
+    }
+
+    @Override
+    public void onFinishInflate() {
+        for (int i = 0; i < sViewIds.length; i++) {
+            View view = findViewById(sViewIds[i]);
+            if (view != null) {
+                view.setOnClickListener(this);
+            }
+        }
+    }
+
+    public void onClick(View v) {
+        switch (v.getId()) {
+            case R.id.control_prev:
+                // TODO
+                break;
+
+            case R.id.control_pauseplay:
+                // TODO
+                break;
+
+            case R.id.control_next:
+                // TODO
+                break;
+        }
+        // Have any button click extend lockscreen's timeout.
+        if (mCallback != null) {
+            mCallback.userActivity(this);
+        }
+    }
+
+}