From 26458b7a0663a09e56392afcfbd1e221c6e2b9ea Mon Sep 17 00:00:00 2001
From: ed <s@ocv.me>
Date: Mon, 26 Jul 2021 22:40:55 +0200
Subject: [PATCH] keyboard file selection

---
 copyparty/web/browser.css | 30 ++++++++++++++++++++++++++++-
 copyparty/web/browser.js  | 40 +++++++++++++++++++++++++++++++--------
 2 files changed, 61 insertions(+), 9 deletions(-)

diff --git a/copyparty/web/browser.css b/copyparty/web/browser.css
index f3e477ad..690d629c 100644
--- a/copyparty/web/browser.css
+++ b/copyparty/web/browser.css
@@ -294,6 +294,7 @@ html.light #ggrid a.sel {
 	border-color: #c37;
 }
 #files tbody tr.sel:hover td,
+#files tbody tr.sel:focus td,
 #ggrid a.sel:hover,
 html.light #ggrid a.sel:hover {
 	color: #fff;
@@ -328,6 +329,21 @@ html.light #ggrid a.sel {
 	color: #fff;
 	text-shadow: 0 0 1px #fff;
 }
+#files tr:focus {
+	outline: none;
+	position: relative;
+}
+#files tr:focus td {
+	background: #111;
+	border-color: #fc0 #111 #fc0 #111;
+	box-shadow: 0 .2em 0 #fc0, 0 -.2em 0 #fc0;
+}
+#files tr:focus td:first-child {
+	box-shadow: -.2em .2em 0 #fc0, -.2em -.2em 0 #fc0;
+}
+#files tr:focus+tr td {
+	border-top: 1px solid transparent;
+}
 #blocked {
 	position: fixed;
 	top: 0;
@@ -1126,6 +1142,17 @@ html.light #files td {
 html.light #files tbody tr:last-child td {
 	border-bottom: .2em solid #ccc;
 }
+html.light #files tr:focus td {
+	background: #fff;
+	border-color: #c37;
+	box-shadow: 0 .2em 0 #e80 , 0 -.2em 0 #e80;
+}
+html.light #files tr:focus td:first-child {
+	box-shadow: -.2em .2em 0 #e80, -.2em -.2em 0 #e80;
+}
+html.light #files tr.sel td {
+	background: #925;
+}
 html.light #files td:nth-child(2n) {
 	color: #d38;
 }
@@ -1179,7 +1206,8 @@ html.light #wnp {
 html.light #barbuf {
 	background: none;
 }
-html.light #files tr.sel:hover td {
+html.light #files tr.sel:hover td,
+html.light #files tr.sel:focus td {
 	background: #c37;
 }
 html.light #files tr.sel td {
diff --git a/copyparty/web/browser.js b/copyparty/web/browser.js
index d5ebfd8d..8e38af7f 100644
--- a/copyparty/web/browser.js
+++ b/copyparty/web/browser.js
@@ -2011,8 +2011,9 @@ function tree_up() {
 
 
 document.onkeydown = function (e) {
-	if (!document.activeElement || document.activeElement != document.body && document.activeElement.nodeName.toLowerCase() != 'a')
-		return;
+	var ae = document.activeElement, aet = '';
+	if (ae && ae != document.body)
+		aet = ae.nodeName.toLowerCase();
 
 	if (e.altKey || e.isComposing)
 		return;
@@ -2022,6 +2023,28 @@ document.onkeydown = function (e) {
 
 	var k = e.code + '', pos = -1, n;
 
+	if (aet == 'tr' && ae.closest('#files')) {
+		var d = '';
+		if (k == 'ArrowUp') d = 'previous';
+		if (k == 'ArrowDown') d = 'next';
+		if (d) {
+			var el = ae[d + 'ElementSibling'];
+			if (el) {
+				el.focus();
+				document.documentElement.scrollTop += (d == 'next' ? 1 : -1) * el.offsetHeight;
+				return ev(e);
+			}
+		}
+		if (k == 'Space') {
+			clmod(ae, 'sel', 't');
+			msel.selui();
+			return ev(e);
+		}
+	}
+
+	if (aet && aet != 'a')
+		return;
+
 	if (ctrl(e)) {
 		if (k == 'KeyX')
 			return fileman.cut();
@@ -3290,6 +3313,7 @@ var msel = (function () {
 				r.sel.push(item);
 
 			links[a].setAttribute('name', item.name);
+			links[a].closest('tr').setAttribute('tabindex', '0');
 		}
 	};
 
@@ -3301,24 +3325,24 @@ var msel = (function () {
 		r.load();
 		return r.all;
 	};
-	function selui() {
+	r.selui = function () {
 		r.sel = r.all = null;
 		clmod(ebi('wtoggle'), 'sel', r.getsel().length);
 		thegrid.loadsel();
 		fileman.render();
 	}
-	function seltgl(e) {
+	r.seltgl = function (e) {
 		ev(e);
 		var tr = this.parentNode;
 		clmod(tr, 'sel', 't');
-		selui();
+		r.selui();
 	}
 	function evsel(e, fun) {
 		ev(e);
 		var trs = QSA('#files tbody tr');
 		for (var a = 0, aa = trs.length; a < aa; a++)
 			clmod(trs[a], 'sel', fun);
-		selui();
+		r.selui();
 	}
 	ebi('selall').onclick = function (e) {
 		evsel(e, "add");
@@ -3354,9 +3378,9 @@ var msel = (function () {
 	r.render = function () {
 		var tds = QSA('#files tbody td+td+td');
 		for (var a = 0, aa = tds.length; a < aa; a++) {
-			tds[a].onclick = seltgl;
+			tds[a].onclick = r.seltgl;
 		}
-		selui();
+		r.selui();
 		arcfmt.render();
 		fileman.render();
 		ebi('selzip').style.display = ebi('unsearch') ? 'none' : '';