From 095edfd49ff3640c6471b5e5242fc0f1e4dddf35 Mon Sep 17 00:00:00 2001
From: jeffvli <jeffvictorli@gmail.com>
Date: Fri, 2 Feb 2024 01:38:58 -0800
Subject: [PATCH] Add custom spoiler component

---
 src/renderer/components/spoiler/index.tsx     | 62 +++++++++----------
 .../components/spoiler/spoiler.module.scss    | 32 ++++++++--
 src/renderer/hooks/index.ts                   |  1 +
 src/renderer/hooks/use-is-overflow.ts         | 20 ++++++
 4 files changed, 78 insertions(+), 37 deletions(-)
 create mode 100644 src/renderer/hooks/use-is-overflow.ts

diff --git a/src/renderer/components/spoiler/index.tsx b/src/renderer/components/spoiler/index.tsx
index ef7a5d2d..9e015ae5 100644
--- a/src/renderer/components/spoiler/index.tsx
+++ b/src/renderer/components/spoiler/index.tsx
@@ -1,41 +1,39 @@
-import { ReactNode } from 'react';
-import { Spoiler as MantineSpoiler } from '@mantine/core';
-import { useTranslation } from 'react-i18next';
+import clsx from 'clsx';
+import { HTMLAttributes, ReactNode, useRef, useState } from 'react';
 import styles from './spoiler.module.scss';
+import { useIsOverflow } from '/@/renderer/hooks';
 
-type SpoilerProps = {
-    children: ReactNode;
-    hideLabel?: boolean;
-    initialState?: boolean;
-    maxHeight: number;
-    showLabel?: ReactNode;
-    transitionDuration?: number;
-};
+interface SpoilerProps extends HTMLAttributes<HTMLDivElement> {
+    children?: ReactNode;
+    defaultOpened?: boolean;
+    maxHeight?: number;
+}
 
-export const Spoiler = ({
-    hideLabel,
-    initialState,
-    maxHeight,
-    showLabel,
-    transitionDuration,
-    children,
-}: SpoilerProps) => {
-    const { t } = useTranslation();
+export const Spoiler = ({ maxHeight, defaultOpened, children, ...props }: SpoilerProps) => {
+    const ref = useRef(null);
+    const isOverflow = useIsOverflow(ref);
+    const [isExpanded, setIsExpanded] = useState(!!defaultOpened);
+
+    const spoilerClassNames = clsx(styles.spoiler, {
+        [styles.canExpand]: isOverflow,
+        [styles.isExpanded]: isExpanded,
+    });
+
+    const handleToggleExpand = () => {
+        setIsExpanded((val) => !val);
+    };
 
     return (
-        <MantineSpoiler
-            classNames={{
-                content: styles.content,
-                control: styles.control,
-                root: styles.root,
-            }}
-            hideLabel={hideLabel ?? t('common.collapse', { postProcess: 'sentenceCase' })}
-            initialState={initialState}
-            maxHeight={maxHeight ?? 75}
-            showLabel={showLabel ?? t('common.expand', { postProcess: 'sentenceCase' })}
-            transitionDuration={transitionDuration}
+        <div
+            ref={ref}
+            className={spoilerClassNames}
+            role="button"
+            style={{ maxHeight: maxHeight ?? '100px' }}
+            tabIndex={-1}
+            onClick={handleToggleExpand}
+            {...props}
         >
             {children}
-        </MantineSpoiler>
+        </div>
     );
 };
diff --git a/src/renderer/components/spoiler/spoiler.module.scss b/src/renderer/components/spoiler/spoiler.module.scss
index a7b51068..36bd1796 100644
--- a/src/renderer/components/spoiler/spoiler.module.scss
+++ b/src/renderer/components/spoiler/spoiler.module.scss
@@ -1,9 +1,31 @@
-.control {
-    color: var(--btn-subtle-fg);
-    font-weight: 600;
-}
-
 .control:hover {
     color: var(--btn-subtle-fg-hover);
     text-decoration: none;
 }
+
+.spoiler {
+    position: relative;
+    text-align: justify;
+    width: 100%;
+    height: 100%;
+    overflow: hidden;
+}
+
+.spoiler:not(.is-expanded).can-expand:after {
+    position: absolute;
+    left: 0;
+    bottom: 0;
+    width: 100%;
+    height: 100%;
+    content: '';
+    background: linear-gradient(to top, var(--main-bg) 10%, transparent 60%);
+    pointer-events: none;
+}
+
+.spoiler.can-expand {
+    cursor: pointer;
+}
+
+.spoiler.is-expanded {
+    max-height: 2500px !important;
+}
diff --git a/src/renderer/hooks/index.ts b/src/renderer/hooks/index.ts
index 82dd033a..0bc18aeb 100644
--- a/src/renderer/hooks/index.ts
+++ b/src/renderer/hooks/index.ts
@@ -5,3 +5,4 @@ export * from './use-container-query';
 export * from './use-fast-average-color';
 export * from './use-hide-scrollbar';
 export * from './use-app-focus';
+export * from './use-is-overflow';
diff --git a/src/renderer/hooks/use-is-overflow.ts b/src/renderer/hooks/use-is-overflow.ts
new file mode 100644
index 00000000..a3c0b7d0
--- /dev/null
+++ b/src/renderer/hooks/use-is-overflow.ts
@@ -0,0 +1,20 @@
+import { MutableRefObject, useState, useLayoutEffect } from 'react';
+
+export const useIsOverflow = (ref: MutableRefObject<HTMLDivElement | null>) => {
+    const [isOverflow, setIsOverflow] = useState<Boolean | undefined>(undefined);
+
+    useLayoutEffect(() => {
+        const { current } = ref;
+
+        const trigger = () => {
+            const hasOverflow = (current?.scrollHeight || 0) > (current?.clientHeight || 0);
+            setIsOverflow(hasOverflow);
+        };
+
+        if (current) {
+            trigger();
+        }
+    }, [ref]);
+
+    return isOverflow;
+};