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Rxjs input file image compressed to base64 // source http://jsbin.com/tewiral
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>Rxjs input file image compressed to base64</title> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/4.0.6/rx.all.js"></script> | |
| <script src="https://unpkg.com/rx-dom@7.0.3/dist/rx.dom.js"></script> | |
| <script src="https://cdn.rawgit.com/xkeshi/image-compressor/master/dist/image-compressor.js"></script> | |
| </head> | |
| <body> | |
| <input type=file> | |
| <script id="jsbin-javascript"> | |
| const input = document.querySelector('input[type=file]') | |
| Rx.DOM.change(input) | |
| .flatMap( event => Rx.Observable.from(event.target.files) ) | |
| .filter( file => file.type.match('image')) | |
| .flatMap(file => { | |
| const imageCompressor = new ImageCompressor() | |
| const image = imageCompressor.compress(file, {quality: .6}) | |
| return Rx.Observable.fromPromise(image) | |
| }) | |
| .map( file => { | |
| return { | |
| filename : file.name, | |
| file: Rx.DOM.fromReader(file).asDataURL() | |
| } | |
| }) | |
| .flatMap(fileInfo => { | |
| return fileInfo.file.map(fileEncoded => { | |
| fileInfo.file = fileEncoded | |
| return fileInfo | |
| }) | |
| }) | |
| .subscribe(data => { | |
| console.log(data) | |
| const image = new Image() | |
| image.src = data.file | |
| document.body.appendChild(image) | |
| }) | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">const input = document.querySelector('input[type=file]') | |
| Rx.DOM.change(input) | |
| .flatMap( event => Rx.Observable.from(event.target.files) ) | |
| .filter( file => file.type.match('image')) | |
| .flatMap(file => { | |
| const imageCompressor = new ImageCompressor() | |
| const image = imageCompressor.compress(file, {quality: .6}) | |
| return Rx.Observable.fromPromise(image) | |
| }) | |
| .map( file => { | |
| return { | |
| filename : file.name, | |
| file: Rx.DOM.fromReader(file).asDataURL() | |
| } | |
| }) | |
| .flatMap(fileInfo => { | |
| return fileInfo.file.map(fileEncoded => { | |
| fileInfo.file = fileEncoded | |
| return fileInfo | |
| }) | |
| }) | |
| .subscribe(data => { | |
| console.log(data) | |
| const image = new Image() | |
| image.src = data.file | |
| document.body.appendChild(image) | |
| }) | |
| </script></body> | |
| </html> |
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Learn more about bidirectional Unicode characters
| const input = document.querySelector('input[type=file]') | |
| Rx.DOM.change(input) | |
| .flatMap( event => Rx.Observable.from(event.target.files) ) | |
| .filter( file => file.type.match('image')) | |
| .flatMap(file => { | |
| const imageCompressor = new ImageCompressor() | |
| const image = imageCompressor.compress(file, {quality: .6}) | |
| return Rx.Observable.fromPromise(image) | |
| }) | |
| .map( file => { | |
| return { | |
| filename : file.name, | |
| file: Rx.DOM.fromReader(file).asDataURL() | |
| } | |
| }) | |
| .flatMap(fileInfo => { | |
| return fileInfo.file.map(fileEncoded => { | |
| fileInfo.file = fileEncoded | |
| return fileInfo | |
| }) | |
| }) | |
| .subscribe(data => { | |
| console.log(data) | |
| const image = new Image() | |
| image.src = data.file | |
| document.body.appendChild(image) | |
| }) |
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