plunkerでlzma

概要

plunkerでlzmaやってみた。
plunkerで圧縮してダウンロードして、アップロードして解凍してみた。

写真

サンプルコード

var compression_mode = 7,
    my_lzma = LZMA;
var file = document.getElementById('file');
var out = document.getElementById('out');
function loadLocalFile(e) {
	var fileData = e.target.files[0];
	var reader = new FileReader();    
	reader.onload = function() {
        var asArray = new Uint8Array(reader.result);
		alert(asArray);
		my_lzma.decompress(asArray, function on_decompress_complete(result) {
            //alert("Decompressed: " + result);
            out.value = result;
        }, function on_decompress_progress_update(percent) {            
        });
	}
    reader.readAsArrayBuffer(fileData);
}
file.addEventListener('change', loadLocalFile, false);

document.getElementById("go").onclick = function() {
    my_lzma.compress(document.getElementById("compression_el").value, compression_mode, function on_compress_complete(result) {
        alert("Compressed: " + result);
        my_lzma.decompress(result, function on_decompress_complete(result) {
            alert("Decompressed: " + result);
        }, function on_decompress_progress_update(percent) {
            document.title = "Decompressing: " + (percent * 100) + "%";
        });
    }, function on_compress_progress_update(percent) {
        document.title = "Compressing: " + (percent * 100) + "%";
    });
}

document.getElementById("go2").onclick = function() {
    my_lzma.compress(document.getElementById("compression_el").value, compression_mode, function on_compress_complete(result) {
        alert(result);
        var asArray = new Uint8Array(result);	
	    var blob = new Blob([asArray], {
		    type: "application/zip"
	    });	            
	    var linkText = document.createTextNode("down load link");
	    var a = document.createElement('a');
	    a.appendChild(linkText);
        a.download = "hello2.txt.lzma";
	    a.href = URL.createObjectURL(blob);
	    document.body.appendChild(a);
    }, function on_compress_progress_update(percent) {
    });
}

成果物

以上。