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https://github.com/mint-ui/mint-loadmore

A two-direction mobile load-more component for vue.js
https://github.com/mint-ui/mint-loadmore

Last synced: 3 months ago
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A two-direction mobile load-more component for vue.js

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README 

        
# Overview

vue-loadmore is a two-direction mobile pull-to-refresh component for vue.js.



# Installation

```bash

$ npm install vue-loadmore

```



# Usage

Import `vue-loadmore` to your project:

```Javascript

// ES6 mudule

import Loadmore from 'vue-loadmore';



// CommonJS

const Loadmore = require('vue-loadmore').default;

```



Register component:

```Javascript

Vue.component('loadmore', Loadmore);

```



Then use it:

```html



  ...



```



# Example



```html



  
    

        
  • {{ item }}
    • 

      



```



Take upward direction for example: pull the component `topDistance` pixels away from the top and then release it, the function you appointed as `top-method` will run



```javascript

loadTop(id) {

  ...// load more data

  this.$refs.loadmore.onTopLoaded(id);

}

```

At the end of your `top-method`, don't forget to manually execute the `onTopLoaded` event so that `mint-loadmore` removes `topLoadingText`. Note that a parameter called `id` is passed to `loadTop` and `onTopLoaded`. This is because after the top data is loaded, some reposition work is performed inside a `mint-loadmore` instance, and `id` simply tells the component which instance should be repositioned. You don't need to do anything more than passing `id` to `onTopLoaded` just as shown above.



For downward direction, things are similar. To invoke `bottom-method`, just pull the component `bottomDistance` pixels away from the bottom and then release it



```javascript

loadBottom(id) {

  ...// load more data

  this.allLoaded = true;// if all data are loaded

  this.$refs.loadmore.onBottomLoaded(id);

}

```

The only difference is that after all data are fetched, you can set `bottom-all-loaded` to `true` so that `bottom-method` will not run any more.



The ratio between the distance that your finger moves and the distance that the component actually scrolls can be defined using `distance-index`, whose default value is 2。



## Custom HTML templates



You can customize the top and bottom DOM using an HTML template

```html



  
    

        
  • {{ item }}
    • 

      


  


    ↓

    Loading...

  



```

For example, to customize the top DOM, you'll need to write your template with a `slot` attribute set to `top` and `class` set to `mint-loadmore-top`. When the component is scrolled, it will be in one of the three status below

*  `pull`: if the component is being pulled yet not ready to drop (top distance is within the distance threshold defined by `topDistance`)

*  `drop`: if the component is ready to drop

*  `loading`: if `topMethod` is running

Every time the status changes, an event named `top-status-change` fires with a parameter indicating the current status of the component. So you can handle this change with a `handleTopChange` method just as the above example shows.



## Configure texts in top and bottom DOM

If you decide not to customize HTML templates, you can configure the texts that comes with `loadmore`. Take the top DOM for example, corresponding to the three `top-status` states, configurable options are: `topPullText`, `topDropText` and `topLoadingText`. And `bottomPullText`, `bottomDropText` and `bottomLoadingText` are for the bottom DOM.



## Auto fill

Upon loaded, `loadmore` will automatically check if it is tall enough to fill its container. If not, `bottom-method` will run until its container is filled. Turn off `auto-fill` if you'd rather handle this manually.



## API

| option | description | type | acceptable values | default |

|------|-------|---------|-------|--------|

| autoFill | if `true`, `loadmore` will check and fill its container | Boolean | | true |

| distanceIndex | the ratio between the distance of the finger moves and the component scrolls | Number | | 2 |

| maxDistance | maximum distance(in pixel) the component can scroll. Can be disabled by setting it to 0 | Number | | 0 |

| topPullText | top text when the component is being pulled down | String | | '下拉刷新' |

| topDropText | top text when the component is ready to drop | String | | '释放更新' |

| topLoadingText | top text while `topMethod` is running | String | | '加载中...' |

| topDistance | distance threshold that triggers `topMethod`(in pixel) | Number | | 70 |

| topMethod | upward load-more function | Function | | |

| bottomPullText | bottom text when the component is being pulled up | String | | '上拉刷新' |

| bottomDropText | bottom text when the component is ready to drop | String | | '释放更新' |

| bottomLoadingText | bottom text while `bottomMethod` is running | String | | '加载中...' |

| bottomDistance | distance threshold that triggers `bottomMethod`(in pixel) | Number | | 70 |

| bottomMethod | downward load-more function | Function | | |

| bottomAllLoaded | if `true`, `bottomMethod` can no longer be triggered | Boolean | | false |



## Events

| event name | description | parameters |

|------|-------|---------|

| top-status-change | the callback when the component's top status changes | current top status |

| bottom-status-change | the callback when the component's bottom status changes | current bottom status |



## Slot

| name | description |

|------|--------|

| - | data list |

| top | custom top HTML template |

| bottom | custom bottom HTML template |



# License

MIT