add dropdown component

2023-03-31 17:35:36 +08:00
parent b9447997fe
commit 41b1bbd7d6
20 changed files with 575 additions and 74 deletions
--- a/lib/ui/tooltip.js
+++ b/lib/ui/tooltip.js
@ -49,9 +49,7 @@ function setTooltip(container, content) {
 }

 function resolveTooltip(container) {
-    if (container == null) {
-        container = document.body;
-    }
+    container ??= document.body;
    const tips = container.querySelectorAll('[title]');
    for (let tip of tips) {
        const title = tip.getAttribute('title');