From e40cd2a8092835267a25d89a2a8543ebfd062a2d Mon Sep 17 00:00:00 2001
From: ed <s@ocv.me>
Date: Sat, 9 Apr 2022 19:20:09 +0200
Subject: [PATCH] optimize window resizing

---
 copyparty/web/browser.js | 14 ++++++++++++--
 copyparty/web/up2k.js    |  2 +-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/copyparty/web/browser.js b/copyparty/web/browser.js
index 866d65ce..63231236 100644
--- a/copyparty/web/browser.js
+++ b/copyparty/web/browser.js
@@ -703,8 +703,12 @@ var widget = (function () {
 			return false;
 
 		clmod(document.documentElement, 'np_open', is_open);
-		widget.className = is_open ? 'open' : '';
+		clmod(widget, 'open', is_open);
 		bcfg_set('au_open', r.is_open = is_open);
+		if (window.vbar) {
+			pbar.onresize();
+			vbar.onresize();
+		}
 		return true;
 	};
 	r.toggle = function (e) {
@@ -753,7 +757,7 @@ var widget = (function () {
 	};
 	r.set(sread('au_open') == 1);
 	setTimeout(function () {
-		clmod(ebi('widget'), 'anim', 1);
+		clmod(widget, 'anim', 1);
 	}, 10);
 	return r;
 })();
@@ -794,6 +798,9 @@ var pbar = (function () {
 		grad;
 
 	r.onresize = function () {
+		if (!widget.is_open && r.buf)
+			return;
+
 		r.buf = canvas_cfg(ebi('barbuf'));
 		r.pos = canvas_cfg(ebi('barpos'));
 		r.drawbuf();
@@ -895,6 +902,9 @@ var vbar = (function () {
 		can, ctx, w, h, grad1, grad2;
 
 	r.onresize = function () {
+		if (!widget.is_open && r.can)
+			return;
+
 		r.can = canvas_cfg(ebi('pvol'));
 		can = r.can.can;
 		ctx = r.can.ctx;
diff --git a/copyparty/web/up2k.js b/copyparty/web/up2k.js
index e1ad5720..999ebef8 100644
--- a/copyparty/web/up2k.js
+++ b/copyparty/web/up2k.js
@@ -1933,6 +1933,7 @@ function up2k_init(subtle) {
     //
 
     function onresize(e) {
+        // 10x faster than matchMedia('(min-width
         var bar = ebi('ops'),
             wpx = window.innerWidth,
             fpx = parseInt(getComputedStyle(bar)['font-size']),
@@ -1942,7 +1943,6 @@ function up2k_init(subtle) {
             parent = ebi(wide && write ? 'u2btn_cw' : 'u2btn_ct'),
             btn = ebi('u2btn');
 
-        //console.log([wpx, fpx, wem]);
         if (btn.parentNode !== parent) {
             parent.appendChild(btn);
             ebi('u2conf').setAttribute('class', wide);