From 3a083f4425da793a1d354a527cf041dd444738d0 Mon Sep 17 00:00:00 2001
From: John Hess <john@jthess.com>
Date: Wed, 5 Jun 2024 01:00:04 -0500
Subject: [PATCH] use a decent simulation for developing the explore view

---
 assets/css/butter-dir-listing.css |  71 +++++++++
 assets/js/butter-dir-listing.js   |   1 +
 simulated-usb-butter.html         | 248 +++++++++++++++++++++++++++++-
 3 files changed, 319 insertions(+), 1 deletion(-)
 create mode 100644 assets/css/butter-dir-listing.css
 create mode 100644 assets/js/butter-dir-listing.js
diff --git a/assets/css/butter-dir-listing.css b/assets/css/butter-dir-listing.css
new file mode 100644
index 0000000..f11e0b9
--- /dev/null
+++ b/assets/css/butter-dir-listing.css
@@ -0,0 +1,71 @@
+/* Based on the default lighttpd styles, this butters up the UI */
+
+
+a,
+a:active {
+    text-decoration: none;
+    color: blue;
+}
+
+a:visited {
+    color: #48468F;
+}
+
+a:hover,
+a:focus {
+    text-decoration: underline;
+    color: red;
+}
+
+body {
+    background-color: #FFDF3F;
+}
+
+h2 {
+    font-family: "Poppins", sans-serif;
+    margin-bottom: 12px;
+}
+
+table {
+    margin-left: 12px;
+}
+
+th,
+td {
+    font: 90% monospace;
+    text-align: left;
+}
+
+th {
+    font-weight: bold;
+    padding-right: 14px;
+    padding-bottom: 3px;
+}
+
+td {
+    padding-right: 14px;
+}
+
+td.s,
+th.s {
+    text-align: right;
+}
+
+/* Don't display the .. nav tool. */
+tbody tr.d:first-of-type
+{
+    display: none;
+}
+
+div.list {
+    background-color: white;
+    border-top: 1px solid #646464;
+    border-bottom: 1px solid #646464;
+    padding-top: 10px;
+    padding-bottom: 14px;
+}
+
+div.foot {
+    /* No need to display the lighttpd version; this is user-facing. */
+    display: none;
+}
\ No newline at end of file
diff --git a/assets/js/butter-dir-listing.js b/assets/js/butter-dir-listing.js
new file mode 100644
index 0000000..7aeb049
--- /dev/null
+++ b/assets/js/butter-dir-listing.js
@@ -0,0 +1 @@
+console.log("butter-dir-listing.js loaded!");
\ No newline at end of file
diff --git a/simulated-usb-butter.html b/simulated-usb-butter.html
index 4c0bee7..96f3784 100644
--- a/simulated-usb-butter.html
+++ b/simulated-usb-butter.html
@@ -1 +1,247 @@
-<!-- This simulates a drive being plugged in.  CI moves this into place as /usb-butter.  You can too. -->
\ No newline at end of file
+---
+layout: empty
+---
+
+<!-- This simulates a drive being plugged in.  CI moves this into place as /usb-butter.  You can too. -->
+<!-- Mostly, this is a copy paste of the real dirlisting.  We modify the JS and CSS links to load ones from this repo. -->
+
+
+<!DOCTYPE html>
+<html>
+
+<head>
+    <title>Index of /usb-butter/</title>
+    <meta name="viewport" content="initial-scale=1">
+    <link rel="stylesheet" type="text/css" href="{{ site.baseurl }}/assets/css/butter-dir-listing.css">
+    <script src="{{ site.baseurl }}/assets/js/butter-dir-listing.js"></script>
+</head>
+
+<body>
+    <h2>Index of /usb-butter/</h2>
+    <div class="list">
+        <table summary="Directory Listing" cellpadding="0" cellspacing="0">
+            <thead>
+                <tr>
+                    <th class="n">Name</th>
+                    <th class="m">Last Modified</th>
+                    <th class="s">Size</th>
+                    <th class="t">Type</th>
+                </tr>
+            </thead>
+            <tbody>
+                <tr class="d">
+                    <td class="n"><a href="../">..</a>/</td>
+                    <td class="m">&nbsp;</td>
+                    <td class="s">- &nbsp;</td>
+                    <td class="t">Directory</td>
+                </tr>
+                <tr class="d">
+                    <td class="n"><a href="johns_folder/">johns_folder</a>/</td>
+                    <td class="m">2024-May-01 15:39:05</td>
+                    <td class="s">- &nbsp;</td>
+                    <td class="t">Directory</td>
+                </tr>
+                <tr class="d">
+                    <td class="n"><a href="ocw/">ocw</a>/</td>
+                    <td class="m">2024-Mar-29 20:42:52</td>
+                    <td class="s">- &nbsp;</td>
+                    <td class="t">Directory</td>
+                </tr>
+            </tbody>
+        </table>
+    </div>
+    <div class="foot">lighttpd/1.4.69</div>
+
+    <script type="text/javascript">
+        // <!--
+
+        var click_column;
+        var name_column = 0;
+        var date_column = 1;
+        var size_column = 2;
+        var type_column = 3;
+        var prev_span = null;
+
+        if (typeof (String.prototype.localeCompare) === 'undefined') {
+            String.prototype.localeCompare = function (str, locale, options) {
+                return ((this == str) ? 0 : ((this > str) ? 1 : -1));
+            };
+        }
+
+        if (typeof (String.prototype.toLocaleUpperCase) === 'undefined') {
+            String.prototype.toLocaleUpperCase = function () {
+                return this.toUpperCase();
+            };
+        }
+
+        function get_inner_text(el) {
+            if ((typeof el == 'string') || (typeof el == 'undefined'))
+                return el;
+            if (el.innerText)
+                return el.innerText;
+            else {
+                var str = "";
+                var cs = el.childNodes;
+                var l = cs.length;
+                for (var i = 0; i < l; i++) {
+                    if (cs[i].nodeType == 1) str += get_inner_text(cs[i]);
+                    else if (cs[i].nodeType == 3) str += cs[i].nodeValue;
+                }
+            }
+            return str;
+        }
+
+        function isdigit(c) {
+            return (c >= '0' && c <= '9');
+        }
+
+        function unit_multiplier(unit) {
+            return (unit == 'K') ? 1000
+                : (unit == 'M') ? 1000000
+                    : (unit == 'G') ? 1000000000
+                        : (unit == 'T') ? 1000000000000
+                            : (unit == 'P') ? 1000000000000000
+                                : (unit == 'E') ? 1000000000000000000 : 1;
+        }
+
+        var li_date_regex = /(\d{4})-(\w{3})-(\d{2}) (\d{2}):(\d{2}):(\d{2})/;
+
+        var li_mon = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
+            'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
+
+        function li_mon_num(mon) {
+            var i; for (i = 0; i < 12 && mon != li_mon[i]; ++i); return i;
+        }
+
+        function li_date_cmp(s1, s2) {
+            var dp1 = li_date_regex.exec(s1)
+            var dp2 = li_date_regex.exec(s2)
+            for (var i = 1; i < 7; ++i) {
+                var cmp = (2 != i)
+                    ? parseInt(dp1[i]) - parseInt(dp2[i])
+                    : li_mon_num(dp1[2]) - li_mon_num(dp2[2]);
+                if (0 != cmp) return cmp;
+            }
+            return 0;
+        }
+
+        function sortfn_then_by_name(a, b, sort_column) {
+            if (sort_column == name_column || sort_column == type_column) {
+                var ad = (a.cells[type_column].innerHTML === 'Directory');
+                var bd = (b.cells[type_column].innerHTML === 'Directory');
+                if (ad != bd) return (ad ? -1 : 1);
+            }
+            var at = get_inner_text(a.cells[sort_column]);
+            var bt = get_inner_text(b.cells[sort_column]);
+            var cmp;
+            if (sort_column == name_column) {
+                if (at == '../') return -1;
+                if (bt == '../') return 1;
+            }
+            if (a.cells[sort_column].className == 'int') {
+                cmp = parseInt(at) - parseInt(bt);
+            } else if (sort_column == date_column) {
+                var ad = isdigit(at.substr(0, 1));
+                var bd = isdigit(bt.substr(0, 1));
+                if (ad != bd) return (!ad ? -1 : 1);
+                cmp = li_date_cmp(at, bt);
+            } else if (sort_column == size_column) {
+                var ai = parseInt(at, 10) * unit_multiplier(at.substr(-1, 1));
+                var bi = parseInt(bt, 10) * unit_multiplier(bt.substr(-1, 1));
+                if (at.substr(0, 1) == '-') ai = -1;
+                if (bt.substr(0, 1) == '-') bi = -1;
+                cmp = ai - bi;
+            } else {
+                cmp = at.toLocaleUpperCase().localeCompare(bt.toLocaleUpperCase());
+                if (0 != cmp) return cmp;
+                cmp = at.localeCompare(bt);
+            }
+            if (0 != cmp || sort_column == name_column) return cmp;
+            return sortfn_then_by_name(a, b, name_column);
+        }
+
+        function sortfn(a, b) {
+            return sortfn_then_by_name(a, b, click_column);
+        }
+
+        function resort(lnk) {
+            var span = lnk.childNodes[1];
+            var table = lnk.parentNode.parentNode.parentNode.parentNode;
+            var rows = new Array();
+            for (var j = 1; j < table.rows.length; j++)
+                rows[j - 1] = table.rows[j];
+            click_column = lnk.parentNode.cellIndex;
+            rows.sort(sortfn);
+
+            if (prev_span != null) prev_span.innerHTML = '';
+            if (span.getAttribute('sortdir') == 'down') {
+                span.innerHTML = '&uarr;';
+                span.setAttribute('sortdir', 'up');
+                rows.reverse();
+            } else {
+                span.innerHTML = '&darr;';
+                span.setAttribute('sortdir', 'down');
+            }
+            for (var i = 0; i < rows.length; i++)
+                table.tBodies[0].appendChild(rows[i]);
+            prev_span = span;
+        }
+
+        function init_sort(init_sort_column, ascending) {
+            var tables = document.getElementsByTagName("table");
+            for (var i = 0; i < tables.length; i++) {
+                var table = tables[i];
+                //var c = table.getAttribute("class")
+                //if (-1 != c.split(" ").indexOf("sort")) {
+                var row = table.rows[0].cells;
+                for (var j = 0; j < row.length; j++) {
+                    var n = row[j];
+                    if (n.childNodes.length == 1 && n.childNodes[0].nodeType == 3) {
+                        var link = document.createElement("a");
+                        var title = n.childNodes[0].nodeValue.replace(/:$/, "");
+                        link.appendChild(document.createTextNode(title));
+                        link.setAttribute("href", "#");
+                        link.setAttribute("class", "sortheader");
+                        link.setAttribute("onclick", "resort(this);return false;");
+                        var arrow = document.createElement("span");
+                        arrow.setAttribute("class", "sortarrow");
+                        arrow.appendChild(document.createTextNode(":"));
+                        link.appendChild(arrow)
+                        n.replaceChild(link, n.firstChild);
+                    }
+                }
+                var lnk = row[init_sort_column].firstChild;
+                if (ascending) {
+                    var span = lnk.childNodes[1];
+                    span.setAttribute('sortdir', 'down');
+                }
+                resort(lnk);
+                //}
+            }
+        }
+
+        function init_sort_from_query() {
+            var urlParams = new URLSearchParams(location.search);
+            var c = 0;
+            var o = 0;
+            switch (urlParams.get('C')) {
+                case "N": c = 0; break;
+                case "M": c = 1; break;
+                case "S": c = 2; break;
+                case "T":
+                case "D": c = 3; break;
+            }
+            switch (urlParams.get('O')) {
+                case "A": o = 1; break;
+                case "D": o = 0; break;
+            }
+            init_sort(c, o);
+        }
+        init_sort_from_query();
+
+        // -->
+    </script>
+
+</body>
+
+</html>
\ No newline at end of file

Name	Last Modified	Size	Type
../		-	Directory
johns_folder/	2024-May-01 15:39:05	-	Directory
ocw/	2024-Mar-29 20:42:52	-	Directory