1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
import { useEffect, useRef, useState, useCallback } from 'react';
import { useLexicalComposerContext } from '@lexical/react/LexicalComposerContext';
import { UNDO_COMMAND } from 'lexical';
const COUNTDOWN_DURATION_MS = 3000;
const TICK_INTERVAL_MS = 50;
interface AutoSavePluginProps {
onAutoSave: (content: string) => void;
getContent: () => string;
enabled?: boolean;
}
export default function AutoSavePlugin({
onAutoSave,
getContent,
enabled = true,
}: AutoSavePluginProps) {
const [editor] = useLexicalComposerContext();
const [countdown, setCountdown] = useState<number | null>(null);
const timerRef = useRef<ReturnType<typeof setInterval> | null>(null);
const startTimeRef = useRef<number>(0);
const pendingContentRef = useRef<string>('');
const lastSavedContentRef = useRef<string>('');
const clearTimer = useCallback(() => {
if (timerRef.current !== null) {
clearInterval(timerRef.current);
timerRef.current = null;
}
setCountdown(null);
}, []);
const cancelCountdown = useCallback(() => {
clearTimer();
}, [clearTimer]);
const startCountdown = useCallback(
(content: string) => {
pendingContentRef.current = content;
clearTimer();
startTimeRef.current = Date.now();
setCountdown(COUNTDOWN_DURATION_MS);
timerRef.current = setInterval(() => {
const elapsed = Date.now() - startTimeRef.current;
const remaining = COUNTDOWN_DURATION_MS - elapsed;
if (remaining <= 0) {
clearTimer();
lastSavedContentRef.current = pendingContentRef.current;
onAutoSave(pendingContentRef.current);
} else {
setCountdown(remaining);
}
}, TICK_INTERVAL_MS);
},
[clearTimer, onAutoSave]
);
// Listen for editor updates (content changes)
useEffect(() => {
if (!enabled) return;
const unregister = editor.registerUpdateListener(({ editorState, dirtyElements, dirtyLeaves }) => {
// Only trigger on actual content changes
if (dirtyElements.size === 0 && dirtyLeaves.size === 0) return;
const content = getContent();
if (content !== lastSavedContentRef.current) {
startCountdown(content);
}
});
return unregister;
}, [editor, enabled, getContent, startCountdown]);
// Listen for undo command to cancel countdown
useEffect(() => {
const unregister = editor.registerCommand(
UNDO_COMMAND,
() => {
cancelCountdown();
return false; // Don't prevent the undo from executing
},
1 // COMMAND_PRIORITY_LOW
);
return unregister;
}, [editor, cancelCountdown]);
// Listen for Escape key to cancel countdown
useEffect(() => {
const handleKeyDown = (e: KeyboardEvent) => {
if (e.key === 'Escape' && countdown !== null) {
e.preventDefault();
cancelCountdown();
}
};
document.addEventListener('keydown', handleKeyDown);
return () => document.removeEventListener('keydown', handleKeyDown);
}, [countdown, cancelCountdown]);
// Cleanup on unmount
useEffect(() => {
return () => {
if (timerRef.current !== null) {
clearInterval(timerRef.current);
}
};
}, []);
if (countdown === null) return null;
const progressPercent = (countdown / COUNTDOWN_DURATION_MS) * 100;
const secondsLeft = Math.ceil(countdown / 1000);
return (
<div className="autosave-bar">
<span className="autosave-bar-text">
Saving in {secondsLeft}s... <kbd>Esc</kbd> to cancel
</span>
<div className="autosave-bar-progress-track">
<div
className="autosave-bar-progress-fill"
style={{ width: `${progressPercent}%` }}
/>
</div>
<button
className="autosave-bar-cancel"
onClick={cancelCountdown}
type="button"
>
Cancel
</button>
</div>
);
}
|
