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// Function to convert human-readable sizes back to bytes, for sorting
function unhumanize(text) {
var powers = {'b': 0, 'k': 1, 'm': 2, 'g': 3, 't': 4};
var regex = /(\d+(?:\.\d+)?)\s?(B|K|M|G|T)?/i;
var res = regex.exec(text);
if(res[2] === undefined) {
// Account for alphabetical words (file/dir names)
return text;
} else {
return res[1] * Math.pow(1024, powers[res[2].toLowerCase()]);
}
}
function sortTable(n) {
var table, rows, switching, i, x, y, shouldSwitch, dir, switchcount = 0;
table = document.getElementById("file-list");
switching = true;
// Set the sorting direction to ascending:
dir = "asc";
/* Make a loop that will continue until
no switching has been done: */
while (switching) {
// Start by saying: no switching is done:
switching = false;
rows = table.getElementsByTagName("TR");
/* Loop through all table rows (except the
first, which contains table headers): */
for (i = 1; i < (rows.length - 1); i++) {
// Start by saying there should be no switching:
shouldSwitch = false;
/* Get the two elements you want to compare,
one from current row and one from the next: */
x = rows[i].getElementsByTagName("TD")[n];
y = rows[i + 1].getElementsByTagName("TD")[n];
/* Check if the two rows should switch place,
based on the direction, asc or desc: */
if (dir == "asc") {
if (unhumanize(x.innerHTML.toLowerCase()) > unhumanize(y.innerHTML.toLowerCase())) {
// If so, mark as a switch and break the loop:
shouldSwitch= true;
break;
}
} else if (dir == "desc") {
if (unhumanize(x.innerHTML.toLowerCase()) < unhumanize(y.innerHTML.toLowerCase())) {
// If so, mark as a switch and break the loop:
shouldSwitch= true;
break;
}
}
}
if (shouldSwitch) {
/* If a switch has been marked, make the switch
and mark that a switch has been done: */
rows[i].parentNode.insertBefore(rows[i + 1], rows[i]);
switching = true;
// Each time a switch is done, increase this count by 1:
switchcount ++;
} else {
/* If no switching has been done AND the direction is "asc",
set the direction to "desc" and run the while loop again. */
if (switchcount == 0 && dir == "asc") {
dir = "desc";
switching = true;
}
}
}
}
// Set click handlers
document.getElementById("filename-header").addEventListener("click", function(){
sortTable(0);
});
document.getElementById("size-header").addEventListener("click", function(){
sortTable(1);
});
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