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.action;
  
  import android.support.annotation.NonNull;
  import android.text.TextUtils;
  import android.view.View;
  
  import org.apache.weex.WXSDKInstance;
  import org.apache.weex.WXSDKManager;
  import org.apache.weex.bridge.JSCallback;
  import org.apache.weex.bridge.SimpleJSCallback;
  import org.apache.weex.ui.component.WXComponent;
  import org.apache.weex.ui.component.list.template.jni.NativeRenderObjectUtils;
  import org.apache.weex.utils.WXViewUtils;
  
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * Created by listen on 18/09/12.
   */
  public class ActionGetLayoutDirection extends BasicGraphicAction {
  
    private final String mCallback;
  
    public ActionGetLayoutDirection(WXSDKInstance instance, String ref, String callback) {
      super(instance, ref);
      this.mCallback = callback;
    }
  
    @Override
    public void executeAction() {
      WXSDKInstance instance = getWXSDKIntance();
      if (instance == null || instance.isDestroy()) {
        return;
      }
  
      JSCallback jsCallback = new SimpleJSCallback(instance.getInstanceId(), mCallback);
  
      if (TextUtils.isEmpty(getRef())) {
        Map<String, Object> options = new HashMap<>();
        options.put("result", false);
        options.put("errMsg", "Illegal parameter");
        jsCallback.invoke(options);
      } else if ("viewport".equalsIgnoreCase(getRef())) {
        callbackViewport(instance, jsCallback);
      } else {
        WXComponent component = WXSDKManager
            .getInstance().getWXRenderManager().getWXComponent(getPageId(), getRef());
        if (component == null) {
          return;
        }
  
        String directionRet = "ltr";
        if (component != null) {
          int direction = NativeRenderObjectUtils.nativeRenderObjectGetLayoutDirectionFromPathNode(component.getRenderObjectPtr());
          switch (direction) {
            case 0: {
              directionRet = "inherit";
              break;
            }
            case 1: {
              directionRet = "ltr";
              break;
            }
            case 2: {
              directionRet = "rtl";
              break;
            }
            default: {
              directionRet = "ltr";
              break;
            }
  
          }
        }
        jsCallback.invoke(directionRet);
      }
    }
  
    private void callbackViewport(WXSDKInstance instance, JSCallback jsCallback) {
      View container;
      if ((container = instance.getContainerView()) != null) {
        Map<String, Object> options = new HashMap<>();
        options.put("direction", "ltr");
        options.put("result", true);
        jsCallback.invoke(options);
      } else {
        Map<String, Object> options = new HashMap<>();
        options.put("result", false);
        options.put("errMsg", "Component does not exist");
        jsCallback.invoke(options);
      }
    }
  
    @NonNull
    private float getWebPxValue(int value,int viewport) {
      return WXViewUtils.getWebPxByWidth(value, viewport);
    }
  
  }
  