108 lines
3.0 KiB
JavaScript
108 lines
3.0 KiB
JavaScript
/*jshint browser:true */
|
|
/*eslint-env browser */
|
|
/*global ADLER32, Uint8Array */
|
|
var X = ADLER32;
|
|
|
|
function console_log() { if(typeof console !== 'undefined') console.log.apply(console, [].slice.call(arguments)); }
|
|
|
|
function lpad(s, len, chr){
|
|
var L = len - s.length, C = chr || " ";
|
|
if(L <= 0) return s;
|
|
return new Array(L+1).join(C) + s;
|
|
}
|
|
|
|
function is_defined(val, keys) {
|
|
if(typeof val === "undefined") return false;
|
|
return keys.length === 0 || is_defined(val[keys[0]], keys.slice(1));
|
|
}
|
|
|
|
function make_chunk_buf_to_str(BType) {
|
|
return function(data) {
|
|
var o = "", l = 0, w = 10240, L = data.byteLength/w;
|
|
for(; l<L; ++l) o+=String.fromCharCode.apply(null, ((new BType(data.slice(l*w,l*w+w)))));
|
|
o+=String.fromCharCode.apply(null, ((new BType(data.slice(l*w)))));
|
|
return o;
|
|
};
|
|
}
|
|
var bstrify = make_chunk_buf_to_str(typeof Uint8Array !== 'undefined' ? Uint8Array : Array);
|
|
|
|
var rABS = typeof FileReader !== 'undefined' && is_defined(FileReader, ['prototype', 'readAsBinaryString']);
|
|
var userABS = (document.getElementsByName("userabs")[0]);
|
|
if(!rABS) {
|
|
userABS.disabled = true;
|
|
userABS.checked = false;
|
|
}
|
|
|
|
function process_value(val) {
|
|
var output = [];
|
|
output[0] = "Signed : " + val;
|
|
output[1] = "Unsigned : " + (val>>>0);
|
|
output[2] = "Hex value : " + lpad((val>>>0).toString(16),8,'0');
|
|
|
|
var out = (document.getElementById('out'));
|
|
var o = output.join("\n");
|
|
if(typeof out.innerText == "undefined") out.textContent = o;
|
|
else out.innerText = o;
|
|
console_log("output", new Date());
|
|
}
|
|
|
|
var dotxt = (document.getElementById('dotext'));
|
|
dotxt.onclick = function() {
|
|
var txt=(document.getElementById('rawdata'));
|
|
console_log("onload", new Date());
|
|
var wb = X.str(txt.value);
|
|
process_value(wb);
|
|
};
|
|
|
|
var readcb = function(e) {
|
|
console_log("onload", new Date(), rABS, false);
|
|
var target = (e.target);
|
|
var data = target.result;
|
|
var val = rABS ? X.bstr(data) : X.str(bstrify(data));
|
|
process_value(val);
|
|
};
|
|
|
|
var handle_file = function(e) {
|
|
rABS = userABS.checked;
|
|
var otarget = (e.target);
|
|
var files = otarget.files;
|
|
var f = files[0];
|
|
|
|
var reader = new FileReader();
|
|
reader.onload = readcb;
|
|
|
|
if(rABS) (reader).readAsBinaryString(f);
|
|
else reader.readAsArrayBuffer(f);
|
|
};
|
|
|
|
var xlf = (document.getElementById('xlf'));
|
|
if(xlf.addEventListener) xlf.addEventListener('change', handle_file, false);
|
|
|
|
var handle_drop = (function(e) {
|
|
e.stopPropagation();
|
|
e.preventDefault();
|
|
rABS = userABS.checked;
|
|
if(!e.dataTransfer) return;
|
|
var files = e.dataTransfer.files;
|
|
var f = files[0];
|
|
|
|
var reader = new FileReader();
|
|
reader.onload = readcb;
|
|
|
|
if(rABS) (reader).readAsBinaryString(f);
|
|
else reader.readAsArrayBuffer(f);
|
|
});
|
|
|
|
var handle_drag = (function (e) {
|
|
e.stopPropagation();
|
|
e.preventDefault();
|
|
if(e.dataTransfer) e.dataTransfer.dropEffect = 'copy';
|
|
});
|
|
|
|
var drop = (document.getElementById('drop'));
|
|
if(drop.addEventListener) {
|
|
drop.addEventListener('dragenter', handle_drag, false);
|
|
drop.addEventListener('dragover', handle_drag, false);
|
|
drop.addEventListener('drop', handle_drop, false);
|
|
}
|