File

File component wrapping the native File and FileReader objects with a higher level API.

Installation

node.js:

$ npm install file-component

browser:

$ component install component/file

Events

Reader

• error an error occurred
• progress in progress (e.percent etc)
• end read is complete

Example

varfile=require('file');varinput=document.querySelector('input');input.onchange=function(){varimg=file(input.files[0]);if(!img.is('image/*')){alert('Images only!');return;}varreader=img.toDataURL(function(err,str){if(err)throwerr;varimg=document.createElement('img');img.src=str;img.height=300;document.body.appendChild(img);});reader.on('progress',function(e){console.log(e.percent);});};

API

file(file)

Wraps a File object:

varfile=require('file');file(input.files[0]);

File#is(type)

Returns a boolean if the file's mime type matches type:

varfile=require('file');file(input.files[0]);file.is('image/*');file.is('image/jpeg');file.is('*/json');

File#toArrayBuffer(fn)

Convert to an ArrayBuffer and invoke fn(err, result), returns a Reader.

File#toText(fn)

Convert to text and invoke fn(err, result), returns a Reader.

File#toDataURL(fn)

Convert to a data uri string and invoke fn(err, result), returns a Reader.

License

MIT