content: /*
   * Copyright (C) 2015 Zhang Rui <bbcallen@gmail.com>
   *
   * 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 tv.danmaku.ijk.media.sample.widget.media;
  
  import android.annotation.TargetApi;
  import android.content.Context;
  import android.graphics.SurfaceTexture;
  import android.os.Build;
  import android.support.annotation.NonNull;
  import android.support.annotation.Nullable;
  import android.util.AttributeSet;
  import android.util.Log;
  import android.view.Surface;
  import android.view.SurfaceHolder;
  import android.view.SurfaceView;
  import android.view.View;
  import android.view.accessibility.AccessibilityEvent;
  import android.view.accessibility.AccessibilityNodeInfo;
  
  import java.lang.ref.WeakReference;
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  
  import tv.danmaku.ijk.media.player.IMediaPlayer;
  import tv.danmaku.ijk.media.player.ISurfaceTextureHolder;
  
  public class SurfaceRenderView extends SurfaceView implements IRenderView {
      private MeasureHelper mMeasureHelper;
  
      public SurfaceRenderView(Context context) {
          super(context);
          initView(context);
      }
  
      public SurfaceRenderView(Context context, AttributeSet attrs) {
          super(context, attrs);
          initView(context);
      }
  
      public SurfaceRenderView(Context context, AttributeSet attrs, int defStyleAttr) {
          super(context, attrs, defStyleAttr);
          initView(context);
      }
  
      @TargetApi(Build.VERSION_CODES.LOLLIPOP)
      public SurfaceRenderView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
          super(context, attrs, defStyleAttr, defStyleRes);
          initView(context);
      }
  
      private void initView(Context context) {
          mMeasureHelper = new MeasureHelper(this);
          mSurfaceCallback = new SurfaceCallback(this);
          getHolder().addCallback(mSurfaceCallback);
          //noinspection deprecation
          getHolder().setType(SurfaceHolder.SURFACE_TYPE_NORMAL);
      }
  
      @Override
      public View getView() {
          return this;
      }
  
      @Override
      public boolean shouldWaitForResize() {
          return true;
      }
  
      //--------------------
      // Layout & Measure
      //--------------------
      @Override
      public void setVideoSize(int videoWidth, int videoHeight) {
          if (videoWidth > 0 && videoHeight > 0) {
              mMeasureHelper.setVideoSize(videoWidth, videoHeight);
              getHolder().setFixedSize(videoWidth, videoHeight);
              requestLayout();
          }
      }
  
      @Override
      public void setVideoSampleAspectRatio(int videoSarNum, int videoSarDen) {
          if (videoSarNum > 0 && videoSarDen > 0) {
              mMeasureHelper.setVideoSampleAspectRatio(videoSarNum, videoSarDen);
              requestLayout();
          }
      }
  
      @Override
      public void setVideoRotation(int degree) {
          Log.e("", "SurfaceView doesn't support rotation (" + degree + ")!\n");
      }
  
      @Override
      public void setAspectRatio(int aspectRatio) {
          mMeasureHelper.setAspectRatio(aspectRatio);
          requestLayout();
      }
  
      @Override
      protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
          mMeasureHelper.doMeasure(widthMeasureSpec, heightMeasureSpec);
          setMeasuredDimension(mMeasureHelper.getMeasuredWidth(), mMeasureHelper.getMeasuredHeight());
      }
  
      //--------------------
      // SurfaceViewHolder
      //--------------------
  
      private static final class InternalSurfaceHolder implements IRenderView.ISurfaceHolder {
          private SurfaceRenderView mSurfaceView;
          private SurfaceHolder mSurfaceHolder;
  
          public InternalSurfaceHolder(@NonNull SurfaceRenderView surfaceView,
                                       @Nullable SurfaceHolder surfaceHolder) {
              mSurfaceView = surfaceView;
              mSurfaceHolder = surfaceHolder;
          }
  
          public void bindToMediaPlayer(IMediaPlayer mp) {
              if (mp != null) {
                  if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) &&
                          (mp instanceof ISurfaceTextureHolder)) {
                      ISurfaceTextureHolder textureHolder = (ISurfaceTextureHolder) mp;
                      textureHolder.setSurfaceTexture(null);
                  }   
                  
                  Log.i("sno","set surface3333");
                  mp.setDisplay(mSurfaceHolder);
              }
          }
  
          @NonNull
          @Override
          public IRenderView getRenderView() {
              return mSurfaceView;
          }
  
          @Nullable
          @Override
          public SurfaceHolder getSurfaceHolder() {
              return mSurfaceHolder;
          }
  
          @Nullable
          @Override
          public SurfaceTexture getSurfaceTexture() {
              return null;
          }
  
          @Nullable
          @Override
          public Surface openSurface() {
              if (mSurfaceHolder == null)
                  return null;
              return mSurfaceHolder.getSurface();
          }
      }
  
      //-------------------------
      // SurfaceHolder.Callback
      //-------------------------
  
      @Override
      public void addRenderCallback(IRenderCallback callback) {
          mSurfaceCallback.addRenderCallback(callback);
      }
  
      @Override
      public void removeRenderCallback(IRenderCallback callback) {
          mSurfaceCallback.removeRenderCallback(callback);
      }
  
      private SurfaceCallback mSurfaceCallback;
  
      private static final class SurfaceCallback implements SurfaceHolder.Callback {
          private SurfaceHolder mSurfaceHolder;
          private boolean mIsFormatChanged;
          private int mFormat;
          private int mWidth;
          private int mHeight;
  
          private WeakReference<SurfaceRenderView> mWeakSurfaceView;
          private Map<IRenderCallback, Object> mRenderCallbackMap = new ConcurrentHashMap<IRenderCallback, Object>();
  
          public SurfaceCallback(@NonNull SurfaceRenderView surfaceView) {
              mWeakSurfaceView = new WeakReference<SurfaceRenderView>(surfaceView);
          }
  
          public void addRenderCallback(@NonNull IRenderCallback callback) {
              mRenderCallbackMap.put(callback, callback);
  
              ISurfaceHolder surfaceHolder = null;
              if (mSurfaceHolder != null) {
                  if (surfaceHolder == null)
                      surfaceHolder = new InternalSurfaceHolder(mWeakSurfaceView.get(), mSurfaceHolder);
                  callback.onSurfaceCreated(surfaceHolder, mWidth, mHeight);
              }
  
              if (mIsFormatChanged) {
                  if (surfaceHolder == null)
                      surfaceHolder = new InternalSurfaceHolder(mWeakSurfaceView.get(), mSurfaceHolder);
                  callback.onSurfaceChanged(surfaceHolder, mFormat, mWidth, mHeight);
              }
          }
  
          public void removeRenderCallback(@NonNull IRenderCallback callback) {
              mRenderCallbackMap.remove(callback);
          }
  
          @Override
          public void surfaceCreated(SurfaceHolder holder) {
              mSurfaceHolder = holder;
              mIsFormatChanged = false;
              mFormat = 0;
              mWidth = 0;
              mHeight = 0;
  
              ISurfaceHolder surfaceHolder = new InternalSurfaceHolder(mWeakSurfaceView.get(), mSurfaceHolder);
              for (IRenderCallback renderCallback : mRenderCallbackMap.keySet()) {
                  renderCallback.onSurfaceCreated(surfaceHolder, 0, 0);
              }
          }
  
          @Override
          public void surfaceDestroyed(SurfaceHolder holder) {
              mSurfaceHolder = null;
              mIsFormatChanged = false;
              mFormat = 0;
              mWidth = 0;
              mHeight = 0;
  
              ISurfaceHolder surfaceHolder = new InternalSurfaceHolder(mWeakSurfaceView.get(), mSurfaceHolder);
              for (IRenderCallback renderCallback : mRenderCallbackMap.keySet()) {
                  renderCallback.onSurfaceDestroyed(surfaceHolder);
              }
          }
  
          @Override
          public void surfaceChanged(SurfaceHolder holder, int format,
                                     int width, int height) {
              mSurfaceHolder = holder;
              mIsFormatChanged = true;
              mFormat = format;
              mWidth = width;
              mHeight = height;
  
              // mMeasureHelper.setVideoSize(width, height);
  
              ISurfaceHolder surfaceHolder = new InternalSurfaceHolder(mWeakSurfaceView.get(), mSurfaceHolder);
              for (IRenderCallback renderCallback : mRenderCallbackMap.keySet()) {
                  renderCallback.onSurfaceChanged(surfaceHolder, format, width, height);
              }
          }
      }
  
      //--------------------
      // Accessibility
      //--------------------
  
      @Override
      public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
          super.onInitializeAccessibilityEvent(event);
          event.setClassName(SurfaceRenderView.class.getName());
      }
  
      @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
      @Override
      public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
          super.onInitializeAccessibilityNodeInfo(info);
          if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
              info.setClassName(SurfaceRenderView.class.getName());
          }
      }
  }
  