scrollwatch features：
- auto detect element enter viewport when scroll
- expose api: scrollTo , to scroll element to enter viewport
- you can set scroll container ,not just window
- use vue directive
- no limitation of nav list
特性：
- 滚动时判断出窗口中当前元素
- 暴露api scrollTo 自由指定要滚到的位置
- 滚动容器自由指定，不局限于window
- vue 指令的方式
- 导航列表没有任何限制
learning usage from src/views/page1.vue and page2.vue
查看源码中的src/views/page1.vue and page2.vue 获得详细使用方式
npm install --save vue-scrollwatchin main.js
import vueScrollwatch from "vue-scrollwatch"
Vue.use(vueScrollwatch)导航
nav
<ul>
<li @click="scrollTo('a')">section 1</li>
<li @click="scrollTo('b')">section 2</li>
<li @click="scrollTo('c')">section 3</li>
<li @click="scrollTo('d')">section 4</li>
</ul>element to watch
<div class="section" v-scrollWatch="{name:'a',offset:0,callback:spyDomChange}">scetcion 1</div>
<div class="section" v-scrollWatch="{name:'b',offset:0,callback:spyDomChange}">scetcion 2</div>
<div class="section" v-scrollWatch="{name:'c',offset:0,callback:spyDomChange}">scetcion 3</div>
<div class="section" v-scrollWatch="{name:'d',offset:0,callback:spyDomChange}">scetcion 4</div>callback and scrollTo in methods
import scrollWatch from "vue-scrollwatch"
export default {
...
methods:{
spyDomChange(node) {
if (this.activeMenu != node.name)
this.activeMenu = node.name
},
scrollTo(name){
scrollWatch.scrollTo(name)
}
}
...
}if you want to define a container to scroll (not window)
如果你想指定滚动容器，而不是window
<div id="#scrollDom">
<div class="section" v-scrollWatch="{name:'a',offset:0,callback:spyDomChange}">scetcion 1</div>
<div class="section" v-scrollWatch="{name:'b',offset:0,callback:spyDomChange}">scetcion 2</div>
<div class="section" v-scrollWatch="{name:'c',offset:0,callback:spyDomChange}">scetcion 3</div>
<div class="section" v-scrollWatch="{name:'d',offset:0,callback:spyDomChange}">scetcion 4</div>
<div>import scrollWatch from "vue-scrollwatch"
export default {
...
created(){
scrollWatch.setContainer("#scrollDom")
}
...
}you also can use class as selector
你也可以使用 class 来作为css 选择器
container and element to be watch hasn't to be father and sons,it also can be grandfather or grand-grandfather
滚动容器和监听元素之间不一定是父子关系,可以是爷孙关系，也可以是祖宗孙子关系
required: true
元素位置偏移
default: 0
type: function
npm run dev
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