1 files changed, 198 insertions, 0 deletions
diff --git a/com/android/widget/VideoSurfaceView.java b/com/android/widget/VideoSurfaceView.java
new file mode 100644
index 00000000..85771234
--- /dev/null
+++ b/com/android/widget/VideoSurfaceView.java
@@ -0,0 +1,198 @@
+/*
+ * Copyright 2018 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.widget;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.media.MediaPlayer;
+import android.support.annotation.NonNull;
+import android.util.AttributeSet;
+import android.util.Log;
+import android.view.SurfaceHolder;
+import android.view.SurfaceView;
+import android.view.View;
+
+import static android.widget.VideoView2.VIEW_TYPE_SURFACEVIEW;
+
+class VideoSurfaceView extends SurfaceView implements VideoViewInterface, SurfaceHolder.Callback {
+    private static final String TAG = "VideoSurfaceView";
+    private static final boolean DEBUG = true; // STOPSHIP: Log.isLoggable(TAG, Log.DEBUG);
+    private SurfaceHolder mSurfaceHolder = null;
+    private SurfaceListener mSurfaceListener = null;
+    private MediaPlayer mMediaPlayer;
+    // A flag to indicate taking over other view should be proceed.
+    private boolean mIsTakingOverOldView;
+    private VideoViewInterface mOldView;
+
+
+    public VideoSurfaceView(Context context) {
+        this(context, null);
+    }
+
+    public VideoSurfaceView(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public VideoSurfaceView(Context context, AttributeSet attrs, int defStyleAttr) {
+        this(context, attrs, defStyleAttr, 0);
+    }
+
+    public VideoSurfaceView(Context context, AttributeSet attrs, int defStyleAttr,
+                            int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+        getHolder().addCallback(this);
+    }
+
+    ////////////////////////////////////////////////////
+    // implements VideoViewInterface
+    ////////////////////////////////////////////////////
+
+    @Override
+    public boolean assignSurfaceToMediaPlayer(MediaPlayer mp) {
+        Log.d(TAG, "assignSurfaceToMediaPlayer(): mSurfaceHolder: " + mSurfaceHolder);
+        if (mp == null || !hasAvailableSurface()) {
+            return false;
+        }
+        mp.setDisplay(mSurfaceHolder);
+        return true;
+    }
+
+    @Override
+    public void setSurfaceListener(SurfaceListener l) {
+        mSurfaceListener = l;
+    }
+
+    @Override
+    public int getViewType() {
+        return VIEW_TYPE_SURFACEVIEW;
+    }
+
+    @Override
+    public void setMediaPlayer(MediaPlayer mp) {
+        mMediaPlayer = mp;
+        if (mIsTakingOverOldView) {
+            takeOver(mOldView);
+        }
+    }
+
+    @Override
+    public void takeOver(@NonNull VideoViewInterface oldView) {
+        if (assignSurfaceToMediaPlayer(mMediaPlayer)) {
+            ((View) oldView).setVisibility(GONE);
+            mIsTakingOverOldView = false;
+            mOldView = null;
+            if (mSurfaceListener != null) {
+                mSurfaceListener.onSurfaceTakeOverDone(this);
+            }
+        } else {
+            mIsTakingOverOldView = true;
+            mOldView = oldView;
+        }
+    }
+
+    @Override
+    public boolean hasAvailableSurface() {
+        return (mSurfaceHolder != null && mSurfaceHolder.getSurface() != null);
+    }
+
+    ////////////////////////////////////////////////////
+    // implements SurfaceHolder.Callback
+    ////////////////////////////////////////////////////
+
+    @Override
+    public void surfaceCreated(SurfaceHolder holder) {
+        Log.d(TAG, "surfaceCreated: mSurfaceHolder: " + mSurfaceHolder + ", new holder: " + holder);
+        mSurfaceHolder = holder;
+        if (mIsTakingOverOldView) {
+            takeOver(mOldView);
+        } else {
+            assignSurfaceToMediaPlayer(mMediaPlayer);
+        }
+
+        if (mSurfaceListener != null) {
+            Rect rect = mSurfaceHolder.getSurfaceFrame();
+            mSurfaceListener.onSurfaceCreated(this, rect.width(), rect.height());
+        }
+    }
+
+    @Override
+    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
+        if (mSurfaceListener != null) {
+            mSurfaceListener.onSurfaceChanged(this, width, height);
+        }
+    }
+
+    @Override
+    public void surfaceDestroyed(SurfaceHolder holder) {
+        // After we return from this we can't use the surface any more
+        mSurfaceHolder = null;
+        if (mSurfaceListener != null) {
+            mSurfaceListener.onSurfaceDestroyed(this);
+        }
+    }
+
+    // TODO: Investigate the way to move onMeasure() code into FrameLayout.
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        int videoWidth = (mMediaPlayer == null) ? 0 : mMediaPlayer.getVideoWidth();
+        int videoHeight = (mMediaPlayer == null) ? 0 : mMediaPlayer.getVideoHeight();
+        if (DEBUG) {
+            Log.d(TAG, "onMeasure(" + MeasureSpec.toString(widthMeasureSpec) + ", "
+                    + MeasureSpec.toString(heightMeasureSpec) + ")");
+            Log.i(TAG, " measuredSize: " + getMeasuredWidth() + "/" + getMeasuredHeight());
+            Log.i(TAG, " viewSize: " + getWidth() + "/" + getHeight());
+            Log.i(TAG, " mVideoWidth/height: " + videoWidth + ", " + videoHeight);
+        }
+
+        int width = getDefaultSize(videoWidth, widthMeasureSpec);
+        int height = getDefaultSize(videoHeight, heightMeasureSpec);
+
+        if (videoWidth > 0 && videoHeight > 0) {
+            int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
+            int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);
+
+            width = widthSpecSize;
+            height = heightSpecSize;
+
+            // for compatibility, we adjust size based on aspect ratio
+            if (videoWidth * height < width * videoHeight) {
+                width = height * videoWidth / videoHeight;
+                if (DEBUG) {
+                    Log.d(TAG, "image too wide, correcting. width: " + width);
+                }
+            } else if (videoWidth * height > width * videoHeight) {
+                height = width * videoHeight / videoWidth;
+                if (DEBUG) {
+                    Log.d(TAG, "image too tall, correcting. height: " + height);
+                }
+            }
+        } else {
+            // no size yet, just adopt the given spec sizes
+        }
+        setMeasuredDimension(width, height);
+        if (DEBUG) {
+            Log.i(TAG, "end of onMeasure()");
+            Log.i(TAG, " measuredSize: " + getMeasuredWidth() + "/" + getMeasuredHeight());
+        }
+    }
+
+    @Override
+    public String toString() {
+        return "ViewType: SurfaceView / Visibility: " + getVisibility()
+                + " / surfaceHolder: " + mSurfaceHolder;
+    }
+}