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wwl-resize

v1.0.5

Published

拖动改变元素大小。目前仅支持鼠标操作,不支持手势。

Downloads

2

Readme

拖动改变元素大小。目前仅支持鼠标操作,不支持手势。

使用

npm

npm install -S wwl-resize

  • resizeBlock: var resizeBlock = require('wwl-resize/resizeblock')
  • resizeImage: var resizeImage = require('wwl-resize/resizeimage')

直接下载

  • resizeBlock: http://wangwl.net/static/demo/wwl-resize/resizeblock.js
  • resizeImage: http://wangwl.net/static/demo/wwl-resize/resizeimage.js

resizeBlock

function( node , options? ) : function

示例:

var dispose = resizeBlock( document.getElementById('#div1') );

将一个元素块变成可拖动控制尺寸,返回一个dispose函数,调用该函数释放相关资源(取消事件回调等)。

node

{node|string} 元素或选择器 改变尺寸的目标元素

options.scale

{number} 限制宽高比例

默认可随意拖动,传入scale参数,限制拖动时的宽高比例

options.container

{node|string} 拖动范围

传入元素节点或选择器,控制拖动范围。

options.targetClass

{string}

对目标元素设置一个样式类,默认不设置。

options.pointClass

{string}

对目标元素拖动滑块设置样式类,默认不设置

options.resizeActive

function(node,size) node为目标节点。 size: {width,height} 当前元素尺寸。

在即将触发拖动时(即mousedown事件中),调用resizeActive事件。

options.resizeStart

resizeStart(node,size)

在第一次改变尺寸前,触发resizeStart事件。

如果该回调返回布尔值false,则不允许改变尺寸。

options.resizeMove

resizeMove(node,size)

改变尺寸过程中触发。

options.resizeEnd

resizeEnd(node,size)

在改变尺寸完成后触发。

resizeImage

function(node, img, options) : function

示例:

var dispose=resizeImage('.resize', 'http://pic-bucket.nosdn.127.net/photo/0001/2018-04-15/DFEV9E9M00AO0001NOS.jpg')

提供一个简便方法,用于针对改变图片尺寸。

node

{node|string} 元素或选择器 改变尺寸的目标元素

img

{file|string} 传入图片,可以File类型,或者url

options

该options会传给resizeBlock

在传给resizeBlock前,resizeImage会自动计算scale值,并覆盖原options.scale。

通过设置options.disableScale,则不计算scale值,options不做任何处理,直接传给resizeBlock