dom-copy-image v1.0.0
Install
npm install --save dom-copy-image
Usage
<!DOCTYPE html>
<html>
<head>
<title>dom copy!</title>
</head>
<body>
<button>Copy Image</button>
<button id="make-thumb">Make thumbnail</button>
<p></p>
<script>
var copyImage = require('dom-copy-image'),
path = require('path');
document.querySelector('button').addEventListener('click', function(e){
copyImage('original.jpg', 'new.png').then(function(data){
console.log(data.file+' was copied.');
document.querySelector('p').innerHTML = data.file+' was copied.';
});
});
document.querySelector('#make-thumb').addEventListener('click', function(e){
//Make a small image copy
copyImage('original.jpg', 'thumb.png', {width: 100}).then(function(data){
var img = document.createElement('img');
img.src = 'thumb.png';
document.querySelector('body').appendChild(img);
});
});
</script>
</body>
</html>copyImage(source, destination, options) -> Promise
The destination, and options arguments are optional.
Resolved value from the promise is an object
value.file = String;
value.dataURL = String;
value.destination = String;
options
options.width / options.height = Integer
Sets the output dimensions. These should be integers in pixels. Only one needs to be set.
options.ratio = Boolean
The default is true. Should the output preserve it's dimension ratio?
options.type = String
The default is image/png. What image type should the output be?
options.quality = Integer
An integer between 0, and 1. What quality should the output image have?
About
This module only works in a client DOM environment that can use node/iojs modules. For instance it will work well with electron.
It can copy images, but if you don't specify a destination you can just use it as a resize function getting back a dataURL from the resolved promise to use as a img tag src.
9 years ago