1 files changed, 254 insertions, 0 deletions
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/QueueView.java b/packages/SystemUI/src/com/android/systemui/statusbar/QueueView.java
new file mode 100644
index 0000000..1da2e5e
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/QueueView.java
@@ -0,0 +1,254 @@
+/*
+ * Copyright (C) 2015 The CyanogenMod 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.statusbar;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.content.Context;
+import android.media.MediaDescription;
+import android.media.MediaMetadata;
+import android.media.session.MediaController;
+import android.media.session.MediaSession;
+import android.media.session.PlaybackState;
+import android.os.Handler;
+import android.provider.Settings;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+import com.android.systemui.R;
+import com.android.systemui.cm.UserContentObserver;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class QueueView extends LinearLayout implements
+        QueueViewRow.UserRowInteractionListener, AdapterView.OnItemClickListener,
+        AdapterView.OnItemLongClickListener {
+
+    private static final String TAG = QueueView.class.getSimpleName();
+    private static final boolean DEBUG = MediaExpandableNotificationRow.DEBUG;
+
+    private MediaController mController;
+
+    private List<MediaSession.QueueItem> mQueue = new ArrayList<>(getMaxQueueRowCount());
+
+    private QueueItemAdapter mAdapter;
+    private ListView mList;
+    private boolean mQueueEnabled;
+
+    long mLastUserInteraction = -1;
+
+    private MediaController.Callback mCallback = new MediaController.Callback() {
+        @Override
+        public void onPlaybackStateChanged(@NonNull PlaybackState state) {
+            super.onPlaybackStateChanged(state);
+
+            if (getParent() != null && updateQueue(mController.getQueue())) {
+                getParent().requestLayout();
+            }
+        }
+
+        @Override
+        public void onSessionDestroyed() {
+            if (DEBUG) Log.d(TAG, "onSessionDestroyed() called with " + "");
+            super.onSessionDestroyed();
+            setController(null);
+        }
+    };
+
+    public QueueView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        mAdapter = new QueueItemAdapter(context);
+        setClipToOutline(false);
+        setClipToPadding(false);
+    }
+
+    public void setQueueEnabled(boolean enabled) {
+        mQueueEnabled = enabled;
+        mAdapter.notifyDataSetChanged();
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+        mList = (ListView) findViewById(R.id.queue_list);
+        mList.setItemsCanFocus(true);
+        mList.setDrawSelectorOnTop(true);
+        mList.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
+        mList.setAdapter(mAdapter);
+        mList.setOnItemLongClickListener(this);
+        mList.setOnItemClickListener(this);
+        mList.setVerticalScrollBarEnabled(false);
+    }
+
+    private class QueueItemAdapter extends ArrayAdapter<MediaSession.QueueItem> {
+
+        public QueueItemAdapter(Context context) {
+            super(context, R.layout.queue_adapter_row, mQueue);
+        }
+
+        @Override
+        public boolean hasStableIds() {
+            return true;
+        }
+
+        @Override
+        public long getItemId(int position) {
+            if (position > getCount() - 1) {
+                return -1;
+            }
+            return getItem(position).getQueueId();
+        }
+
+        @Override
+        public View getView(int position, View convertView, ViewGroup parent) {
+            final MediaSession.QueueItem queueItem = getItem(position);
+
+            if (convertView == null) {
+                convertView = LayoutInflater.from(parent.getContext())
+                        .inflate(R.layout.queue_adapter_row, parent, false);
+            }
+
+            QueueViewRow row = (QueueViewRow) convertView;
+            row.setHotSpotChangeListener(QueueView.this);
+
+            row.setQueueItem(queueItem);
+
+            return convertView;
+        }
+
+        @Override
+        public int getCount() {
+            if (!mQueueEnabled) {
+                return 0;
+            }
+            return super.getCount();
+        }
+    }
+
+    public boolean isUserSelectingRow() {
+        final long delta = System.currentTimeMillis() - mLastUserInteraction;
+        if (DEBUG) Log.i(TAG, "isUserSelectingRow() delta=" + delta);
+
+        if (mLastUserInteraction > 0 && delta < 500) {
+            if (DEBUG) Log.w(TAG, "user selecting row bc of hotspot change.");
+            return true;
+        }
+
+        return false;
+    }
+
+    public int getMaxQueueRowCount() {
+        return MediaExpandableNotificationRow.MAX_QUEUE_ENTRIES;
+    }
+
+    public int getCurrentQueueRowCount() {
+        if (mAdapter == null) {
+            return 0;
+        }
+        return mAdapter.getCount();
+    }
+
+    @Override
+    public void onHotSpotChanged(float x, float y) {
+        mLastUserInteraction = System.currentTimeMillis();
+    }
+
+    @Override
+    public void onDrawableStateChanged() {
+        mLastUserInteraction = System.currentTimeMillis();
+    }
+
+    /**
+     * @param queue
+     * @return whether the queue size has changed
+     */
+    public boolean updateQueue(List<MediaSession.QueueItem> queue) {
+        int queueSizeBefore = mAdapter.getCount();
+
+        mQueue.clear();
+
+        if (queue != null) {
+            // add everything *after* the currently playing item
+            boolean foundNowPlaying = false;
+
+            final PlaybackState playbackState = mController.getPlaybackState();
+
+            long activeQueueId = -1;
+            if (playbackState != null) {
+                activeQueueId = playbackState.getActiveQueueItemId();
+            }
+
+            for (int i = 0; i < queue.size() && mQueue.size() < getMaxQueueRowCount(); i++) {
+                final MediaSession.QueueItem item = queue.get(i);
+                if (!foundNowPlaying
+                        && activeQueueId != -1
+                        && activeQueueId == item.getQueueId()) {
+                    foundNowPlaying = true;
+                    continue;
+                }
+                if (foundNowPlaying) {
+                    mQueue.add(item);
+                }
+            }
+
+            // add everything
+            if (!foundNowPlaying) {
+                for(int i = 0; i < getMaxQueueRowCount() && i < queue.size(); i++) {
+                    mQueue.add(queue.get(i));
+                }
+            }
+        }
+        mAdapter.notifyDataSetChanged();
+
+        return mAdapter.getCount() != queueSizeBefore;
+    }
+
+    public boolean setController(MediaController controller) {
+        if (mController != null) {
+            mController.unregisterCallback(mCallback);
+        }
+        mController = controller;
+        if (mController != null) {
+            mController.registerCallback(mCallback);
+        }
+
+        return updateQueue(mController != null
+                ? mController.getQueue() : null);
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        final MediaSession.QueueItem itemAtPosition = (MediaSession.QueueItem)
+                parent.getItemAtPosition(position);
+        if (itemAtPosition != null && mController != null) {
+            mController.getTransportControls().skipToQueueItem(itemAtPosition.getQueueId());
+        }
+        mAdapter.notifyDataSetChanged();
+    }
+
+    @Override
+    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+        return true;
+    }
+
+}