From d043d8d31cec5ce741362bfb1dfb08d91d7a0a42 Mon Sep 17 00:00:00 2001
From: graphemecluster <graphemecluster@gmail.com>
Date: Thu, 3 Oct 2024 18:29:58 +0800
Subject: [PATCH] Use Tooltip for evaluation result copying

Displaying a dialog is too visually obtrusive for such a small action.
---
 src/Components/Main.tsx         | 40 ++++++++++++++++++++++-----------
 src/Components/Tooltip.tsx      | 14 +++++++-----
 src/Components/TooltipLabel.tsx |  5 ++++-
 src/utils.tsx                   | 32 --------------------------
 4 files changed, 40 insertions(+), 51 deletions(-)

diff --git a/src/Components/Main.tsx b/src/Components/Main.tsx
index a21c944..b9b6b99 100644
--- a/src/Components/Main.tsx
+++ b/src/Components/Main.tsx
@@ -13,7 +13,7 @@ import { allOptions, defaultArticle } from "../consts";
 import evaluate from "../evaluate";
 import { listenArticle } from "../options";
 import initialState, { stateStorageLocation } from "../state";
-import { copy, notifyError } from "../utils";
+import TooltipLabel from "./TooltipLabel";
 
 import type { MainState, Option, ReactNode } from "../consts";
 
@@ -176,11 +176,19 @@ export default function Main({ evaluateHandlerRef }: { evaluateHandlerRef: Mutab
 
   const [loading, setLoading] = useState(false);
 
-  const handleCopy = useCallback(() => {
-    const txt = ref.current.textContent?.trim();
-    if (txt) copy(txt);
-    else notifyError("請先進行操作，再匯出結果");
+  const [copyTooltipText, setCopyTooltipText] = useState("複製到剪貼簿");
+  const copyEvaluationResult = useCallback(async () => {
+    const content = ref.current.textContent?.trim();
+    if (content) {
+      try {
+        await navigator.clipboard.writeText(content);
+        setCopyTooltipText("成功複製到剪貼簿");
+      } catch {
+        setCopyTooltipText("無法複製到剪貼簿");
+      }
+    }
   }, []);
+  const onHideTooltip = useCallback(() => setCopyTooltipText("複製到剪貼簿"), []);
 
   // XXX Please Rewrite
   useEffect(() => {
@@ -287,14 +295,20 @@ export default function Main({ evaluateHandlerRef }: { evaluateHandlerRef: Mutab
           <OutputPopup>
             <Title>
               <span>推導結果</span>
-              <CopyButton title="匯出至剪貼簿" hidden={loading} onClick={handleCopy}>
-                <FontAwesomeIcon icon={faCopy} size="sm" />
-              </CopyButton>
-              <form method="dialog">
-                <CloseButton type="submit" className="swal2-close" title="關閉" hidden={loading}>
-                  ×
-                </CloseButton>
-              </form>
+              {!loading && (
+                <>
+                  <TooltipLabel description={copyTooltipText} onHideTooltip={onHideTooltip}>
+                    <CopyButton onClick={copyEvaluationResult}>
+                      <FontAwesomeIcon icon={faCopy} size="sm" />
+                    </CopyButton>
+                  </TooltipLabel>
+                  <form method="dialog">
+                    <CloseButton type="submit" className="swal2-close" title="關閉">
+                      ×
+                    </CloseButton>
+                  </form>
+                </>
+              )}
             </Title>
             <OutputContent key={operation} ref={ref}>
               {evaluationResult}
diff --git a/src/Components/Tooltip.tsx b/src/Components/Tooltip.tsx
index 4e56caf..581e828 100644
--- a/src/Components/Tooltip.tsx
+++ b/src/Components/Tooltip.tsx
@@ -40,10 +40,6 @@ const root = createRoot(div);
 
 let tooltipTarget: symbol | null = null;
 
-function hideTooltip() {
-  div.style.visibility = "hidden";
-}
-
 function TooltipAnchor({
   relativeToNodeBox,
   children,
@@ -80,10 +76,12 @@ export default function Tooltip({
   element,
   children,
   fixedWidth = true,
+  onHideTooltip,
 }: {
   element: ReactElement;
   children: ReactElement;
   fixedWidth?: boolean;
+  onHideTooltip?: (() => void) | undefined;
 }) {
   const selfRef = useRef(Symbol("Tooltip"));
   const boxRef = useRef<DOMRect | null>(null);
@@ -109,14 +107,20 @@ export default function Tooltip({
       renderTooltip();
     }
   }, [renderTooltip]);
+
+  const hideTooltip = useCallback(() => {
+    div.style.visibility = "hidden";
+    onHideTooltip?.();
+  }, [onHideTooltip]);
   useEffect(
     () => () => {
       if (tooltipTarget === selfRef.current) {
         hideTooltip();
       }
     },
-    [],
+    [hideTooltip],
   );
+
   return cloneElement(children, {
     onMouseEnter: showTooltip,
     onTouchStart: showTooltip,
diff --git a/src/Components/TooltipLabel.tsx b/src/Components/TooltipLabel.tsx
index 359c6a6..1c10a58 100644
--- a/src/Components/TooltipLabel.tsx
+++ b/src/Components/TooltipLabel.tsx
@@ -22,9 +22,11 @@ const Option = styled.label`
 export default function TooltipLabel({
   description,
   children,
+  onHideTooltip,
 }: {
   description?: string | undefined;
   children: ReactNode;
+  onHideTooltip?: (() => void) | undefined;
 }) {
   return typeof description === "string" && description ? (
     <Tooltip
@@ -35,7 +37,8 @@ export default function TooltipLabel({
             <p key={i}>{line}</p>
           ))}
         </Wrapper>
-      }>
+      }
+      onHideTooltip={onHideTooltip}>
       <Option>{children}</Option>
     </Tooltip>
   ) : (
diff --git a/src/utils.tsx b/src/utils.tsx
index 13488fe..81439ad 100644
--- a/src/utils.tsx
+++ b/src/utils.tsx
@@ -53,38 +53,6 @@ export function notifyError(msg: string, err?: unknown) {
   return new Error(msg, err instanceof Error ? { cause: err } : {});
 }
 
-export async function copy(txt: string) {
-  if (
-    await (async () => {
-      try {
-        await navigator.clipboard.writeText(txt);
-        return true;
-      } catch {
-        const textArea = document.createElement("textarea");
-        textArea.value = txt;
-        textArea.style.position = "fixed";
-        document.body.appendChild(textArea);
-        textArea.focus();
-        textArea.select();
-        try {
-          return document.execCommand("copy");
-        } catch {
-          return false;
-        } finally {
-          document.body.removeChild(textArea);
-        }
-      }
-    })()
-  )
-    Swal.fire({
-      icon: "success",
-      title: "成功",
-      text: "已成功匯出至剪貼簿",
-      confirmButtonText: "確定",
-    });
-  else notifyError("瀏覽器不支援匯出至剪貼簿，操作失敗");
-}
-
 export async function fetchFile(input: string) {
   try {
     const text = await (await fetch(input, { cache: "no-cache" })).text();