content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.weex.ui.component.richtext.node;
  
  import static org.apache.weex.utils.WXViewUtils.getRealPxByWidth;
  
  import android.content.Context;
  import android.graphics.drawable.Drawable;
  import android.net.Uri;
  import android.support.annotation.NonNull;
  import android.text.SpannableStringBuilder;
  import org.apache.weex.WXSDKEngine;
  import org.apache.weex.WXSDKInstance;
  import org.apache.weex.WXSDKManager;
  import org.apache.weex.adapter.DrawableStrategy;
  import org.apache.weex.adapter.URIAdapter;
  import org.apache.weex.common.Constants;
  import org.apache.weex.ui.component.richtext.span.ImgSpan;
  import org.apache.weex.ui.component.richtext.span.ItemClickSpan;
  import org.apache.weex.utils.ImgURIUtil;
  import org.apache.weex.utils.WXUtils;
  
  import java.util.LinkedList;
  import java.util.List;
  import java.util.Map;
  
  class ImgNode extends RichTextNode {
  
    static class ImgNodeCreator implements RichTextNodeCreator<ImgNode> {
  
      @Override
      public ImgNode createRichTextNode(Context context, String instanceId, String componentRef) {
        return new ImgNode(context, instanceId, componentRef);
      }
      @Override
      public ImgNode createRichTextNode(Context context,String instanceId,String componentRef,String ref,
                                         Map<String,Object> styles, Map<String,Object> attrs){
        return new ImgNode(context,instanceId,componentRef,ref,styles,attrs);
      }
    }
  
    public static final String NODE_TYPE = "image";
  
    private ImgNode(Context context, String instanceId, String componentRef) {
      super(context, instanceId, componentRef);
    }
    private ImgNode(Context context, String instanceId, String componentRef, String ref, Map<String,Object> styles, Map<String,Object> attrs) {
      super(context, instanceId, componentRef, ref, styles, attrs);
    }
  
    @Override
    public String toString() {
      return "\uFEFF";
    }
  
    @Override
    protected boolean isInternalNode() {
      return false;
    }
  
    @Override
    protected void updateSpans(SpannableStringBuilder spannableStringBuilder, int level) {
      WXSDKInstance instance = WXSDKManager.getInstance().getSDKInstance(mInstanceId);
      if (WXSDKEngine.getDrawableLoader() != null &&
          style.containsKey(Constants.Name.WIDTH) &&
          style.containsKey(Constants.Name.HEIGHT) &&
          attr.containsKey(Constants.Name.SRC) &&
          instance != null) {
        List<Object> spans = new LinkedList<>();
        spans.add(createImgSpan(instance));
  
        if (attr.containsKey(PSEUDO_REF)) {
          spans.add(new ItemClickSpan(mInstanceId, mComponentRef,
              attr.get(PSEUDO_REF).toString()));
        }
  
        for (Object span : spans) {
          spannableStringBuilder.setSpan(
              span, 0, spannableStringBuilder.length(), createSpanFlag(level));
        }
      }
    }
  
    @NonNull
    private ImgSpan createImgSpan(WXSDKInstance instance) {
      int width = (int) getRealPxByWidth(WXUtils.getFloat(style.get(Constants.Name.WIDTH)),
          instance.getInstanceViewPortWidth());
      int height = (int) getRealPxByWidth(WXUtils.getFloat(style.get(Constants.Name.HEIGHT)),
          instance.getInstanceViewPortWidth());
      ImgSpan imageSpan = new ImgSpan(width, height);
  
      String url = attr.get(Constants.Name.SRC).toString();
      Uri rewrited = instance.rewriteUri(Uri.parse(url), URIAdapter.IMAGE);
      if (Constants.Scheme.LOCAL.equals(rewrited.getScheme())) {
        Drawable localDrawable = ImgURIUtil.getDrawableFromLoaclSrc(mContext, rewrited);
        imageSpan.setDrawable(localDrawable, false);
      } else {
        DrawableStrategy drawableStrategy = new DrawableStrategy();
        drawableStrategy.width = width;
        drawableStrategy.height = height;
        WXSDKEngine.getDrawableLoader().setDrawable(rewrited.toString(), imageSpan, drawableStrategy);
      }
      return imageSpan;
    }
  }
  