/*
 * 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.
 */

function getHeader (weex) {
  const { extractComponentStyle } = weex

  return {
    render (createElement) {
      //166435 list组件中的header标签兼容支持H5环境吸顶效果
      //172489 LightJSNative项目在H5运行时下，支持如果list或者scroll设置高度，同时使用header的情况滑动
      // weex.utils.appendCss(`.weex-root{overflow-x:unset}.weex-list-wrapper{overflow-x:unset !important;overflow-y:unset !important}`);
      const attrs = this.$vnode.data.attrs
      return createElement('html:header', {
        attrs: {
          'weex-type': 'header',
          sticky: (
            this.$parent.weexType === 'waterfall'
            && typeof attrs.sticky === 'undefined'
          ) ? undefined : ''
        },
        ref: 'header',
        staticClass: 'weex-header weex-ct',
        staticStyle: extractComponentStyle(this)
      }, this.$slots.default)
    }
  }
}

export default {
  init (weex) {
    weex.registerComponent('header', getHeader(weex))
  }
}
