| /* |
| * 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 getRefresh (weex) { |
| const { extractComponentStyle } = weex |
| const { createEvent } = weex.utils |
| |
| return { |
| name: 'weex-refresh', |
| props: { |
| display: { |
| type: String, |
| default: 'show', |
| validator (value) { |
| return ['show', 'hide'].indexOf(value) !== -1 |
| } |
| } |
| }, |
| data () { |
| return { |
| lastDy: 0, |
| viewHeight: 0, |
| height: -1 |
| } |
| }, |
| mounted () { |
| this.viewHeight = this.$el.offsetHeight |
| if (this.display === 'hide') { |
| this.height = 0 |
| } |
| else { |
| this.height = this.viewHeight |
| } |
| }, |
| watch: { |
| height (val) { |
| this.$el.style.height = `${val}px` |
| }, |
| display (val) { |
| if (val === 'hide') { |
| this.height = 0 |
| } |
| else { |
| this.height = this.viewHeight |
| } |
| } |
| }, |
| methods: { |
| pulling (offsetY = 0) { |
| this.height = offsetY |
| this.$emit('pullingdown', createEvent(this, 'pullingdown', { |
| dy: offsetY - this.lastDy, |
| pullingDistance: offsetY, |
| viewHeight: this.viewHeight |
| })) |
| this.lastDy = offsetY |
| }, |
| pullingDown (offsetY) { |
| this.$el.style.transition = `height 0s` |
| this.pulling(offsetY) |
| }, |
| pullingEnd () { |
| this.$el.style.transition = `height .2s` |
| if (this.height >= this.viewHeight) { |
| this.pulling(this.viewHeight) |
| this.$emit('refresh') |
| } |
| else { |
| this.pulling(0) |
| } |
| }, |
| getChildren () { |
| const children = this.$slots.default || [] |
| if (this.display === 'show') { |
| return children |
| } |
| return children.filter(vnode => { |
| return vnode.componentOptions |
| && vnode.componentOptions.tag !== 'loading-indicator' |
| }) |
| } |
| }, |
| render (createElement) { |
| this.$parent._refresh = this |
| return createElement('aside', { |
| ref: 'refresh', |
| attrs: { 'weex-type': 'refresh' }, |
| staticClass: 'weex-refresh weex-ct', |
| staticStyle: extractComponentStyle(this) |
| }, this.getChildren()) |
| } |
| } |
| } |
| |
| export default { |
| init (weex) { |
| weex.registerComponent('refresh', getRefresh(weex)) |
| } |
| } |