0.0.1 • Published 6 years ago
@qingchong/postcss-plugins-px2vw v0.0.1
auto-postcss-px-to-vw
A plugin for PostCSS that generates viewport units (vw, vh, vmin, vmax) from pixel units.
拷贝项目,单独发布npm,解决作者npm不是最新版本bug 原文
如有需求,后续进行维护
Usage
If your project involves a fixed width, this script will help to convert pixels into viewport units.
Input/Output
// input
.class {
margin: -10px .5vh;
padding: 5vmin 9.5px 1px;
border: 3px solid black;
border-bottom-width: 1px;
font-size: 14px;
line-height: 20px;
}
.class2 {
border: 1px solid black;
margin-bottom: 1px;
font-size: 20px;
line-height: 30px;
}
@media (min-width: 750px) {
.class3 {
font-size: 16px;
line-height: 22px;
}
}
// output
.class {
margin: -3.125vw .5vh;
padding: 5vmin 2.96875vw 1px;
border: 0.9375vw solid black;
border-bottom-width: 1px;
font-size: 4.375vw;
line-height: 6.25vw;
}
.class2 {
border: 1px solid black;
margin-bottom: 1px;
font-size: 6.25vw;
line-height: 9.375vw;
}
@media (min-width: 234.375vw) {
.class3 {
font-size: 5vw;
line-height: 6.875vw;
}
}
Example
'use strict';
var fs = require('fs');
var postcss = require('postcss');
var pxToViewport = require('..');
var css = fs.readFileSync('main.css', 'utf8');
var options = {
replace: false
};
var processedCss = postcss(pxToViewport(options)).process(css).css;
fs.writeFile('main-viewport.css', processedCss, function (err) {
if (err) {
throw err;
}
console.log('File with viewport units written.');
});
Options
Default:
{
unitToConvert: 'px',
viewportWidth: 320,
viewportHeight: 568, // not now used; TODO: need for different units and math for different properties
unitPrecision: 5,
viewportUnit: 'vw',
fontViewportUnit: 'vw', // vmin is more suitable.
selectorBlackList: [],
minPixelValue: 1,
mediaQuery: false
}
unitToConvert
(String) unit to convert, by default, it is px.viewportWidth
(Number) The width of the viewport.viewportHeight
(Number) The height of the viewport.unitPrecision
(Number) The decimal numbers to allow the REM units to grow to.viewportUnit
(String) Expected units.fontViewportUnit
(String) Expected units for font.selectorBlackList
(Array) The selectors to ignore and leave as px.- If value is string, it checks to see if selector contains the string.
['body']
will match.body-class
- If value is regexp, it checks to see if the selector matches the regexp.
[/^body$/]
will matchbody
but not.body
- If value is string, it checks to see if selector contains the string.
minPixelValue
(Number) Set the minimum pixel value to replace.mediaQuery
(Boolean) Allow px to be converted in media queries.
Use with gulp-postcss
var gulp = require('gulp');
var postcss = require('gulp-postcss');
var pxtoviewport = require('postcss-px-to-viewport');
gulp.task('css', function () {
var processors = [
pxtoviewport({
viewportWidth: 320,
viewportUnit: 'vmin'
})
];
return gulp.src(['build/css/**/*.css'])
.pipe(postcss(processors))
.pipe(gulp.dest('build/css'));
});
0.0.1
6 years ago