fix: on paste error validation

[smgv]

Description

In this PR, it immediately validates the pasted SRP by invoking it on paste.

Jira Link: https://consensyssoftware.atlassian.net/browse/SL-279

Changelog

CHANGELOG entry: validate seedphrase when user paste the data.

Related issues

Fixes:

Manual testing steps

1. Go to this page...

Screenshots/Recordings

Before

After

Screen.Recording.2025-11-07.at.4.14.21.PM.mov

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

---

Note

Immediately validates pasted SRP words by refactoring the invalid-word checker to accept an SRP list and invoking it on paste.

• SRP Import (ui/components/app/srp-input-import/srp-input-import.tsx):
  • Refactor checkForInvalidWords to accept an optional srp array, defaulting to current draftSrp.
  • Invoke checkForInvalidWords(newDraftSrp) during paste handling to flag invalid words immediately after parsing input.

^{Written by Cursor Bugbot for commit 1b6ee4e. This will update automatically on new commits. Configure here.}

[github-actions]

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[cursor]

Bug: Paste breaks old misspellings on keyboard paste

When pasting via keyboard shortcut (Ctrl+V/Cmd+V), handleOnPaste doesn't clear misSpelledWords before calling onSrpPaste. Since onSrpPaste creates new word objects with new IDs, old misspelled words from previous input remain in state and display incorrect error messages. The paste button flow correctly clears misSpelledWords in onTriggerPaste, but the direct paste handler is missing this cleanup.

ui/components/app/srp-input-import/srp-input-import.tsx#L215-L225

metamask-extension/ui/components/app/srp-input-import/srp-input-import.tsx

Lines 215 to 225 in 1b6ee4e

	const handleOnPaste = (
	clipBoardEvent: React.ClipboardEvent<HTMLTextAreaElement>,
	) => {
	clipBoardEvent.preventDefault();
	const newSrp = clipBoardEvent.clipboardData.getData('text');
	if (newSrp.trim().match(/\s/u)) {
	clipBoardEvent.preventDefault();
	onSrpPaste(newSrp);
	}
	};

 

---

[metamaskbot]

Builds ready [1b6ee4e]

• builds: chrome, firefox
• builds (beta): chrome, firefox
• builds (flask): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• bundle size: Bundle Size Stats
• user-actions-benchmark: User Actions Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
  • content-script: 0
  • offscreen: 0

UI Startup Metrics (1198 ± 87 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Standard Home	uiStartup	1198	1061	1594	87	1226	1384
			load	1037	920	1416	79	1075	1189
			domContentLoaded	1030	915	1403	78	1068	1183
			domInteractive	21	13	103	15	18	52
			firstPaint	663	78	1411	417	1042	1164
			backgroundConnect	229	214	315	11	234	242
			firstReactRender	27	17	92	9	26	43
			getState	20	7	73	10	23	37
			initialActions	0	0	1	0	0	1
			loadScripts	808	696	1181	77	845	953
			setupStore	10	6	27	3	11	17
			numNetworkReqs	13	6	77	20	6	74
	Browserify	Power User Home	uiStartup	1908	1747	2826	270	1944	2826
			load	1028	886	1534	198	1243	1534
			domContentLoaded	1020	879	1524	196	1237	1524
			domInteractive	31	15	107	25	55	107
			firstPaint	713	177	1563	415	928	1563
			backgroundConnect	237	222	251	10	248	251
			firstReactRender	29	25	47	6	29	47
			getState	176	156	235	23	189	235
			initialActions	0	0	1	0	1	1
			loadScripts	798	660	1286	190	1008	1286
			setupStore	14	9	32	6	15	32
			numNetworkReqs	117	76	248	57	150	248
	Webpack	Standard Home	uiStartup	839	707	1274	88	853	1026
			load	591	547	904	65	585	764
			domContentLoaded	583	540	890	63	577	751
			domInteractive	18	13	66	9	17	42
			firstPaint	198	63	794	170	182	567
			backgroundConnect	30	13	78	15	31	67
			firstReactRender	32	18	83	11	35	56
			getState	11	6	23	3	12	16
			initialActions	0	0	1	0	0	1
			loadScripts	580	538	879	61	574	742
			setupStore	13	6	37	6	14	31
			numNetworkReqs	14	6	80	20	8	71
	Webpack	Power User Home	uiStartup	1257	1139	1754	167	1365	1754
			load	660	571	1048	141	768	1048
			domContentLoaded	643	559	1030	135	749	1030
			domInteractive	27	12	92	25	41	92
			firstPaint	375	79	1034	329	758	1034
			backgroundConnect	43	15	141	33	63	141
			firstReactRender	26	24	29	1	27	29
			getState	139	71	167	24	151	167
			initialActions	0	0	1	0	1	1
			loadScripts	639	556	1020	132	738	1020
			setupStore	8	6	14	2	9	14
			numNetworkReqs	106	71	213	47	166	213
Firefox	Browserify	Standard Home	uiStartup	1510	1293	1978	128	1594	1737
			load	1283	1120	1595	100	1356	1456
			domContentLoaded	1283	1120	1594	100	1355	1455
			domInteractive	117	35	318	49	130	224
			firstPaint	-	-	-	-	-	-
			backgroundConnect	49	26	164	28	52	121
			firstReactRender	27	22	75	6	27	39
			getState	8	4	50	6	7	15
			initialActions	0	0	1	0	0	1
			loadScripts	1254	1103	1565	97	1319	1424
			setupStore	14	7	76	10	14	33
			numNetworkReqs	12	6	66	16	7	62
	Browserify	Power User Home	uiStartup	2514	2120	3166	306	2816	3166
			load	1442	1156	2116	264	1631	2116
			domContentLoaded	1441	1156	2116	264	1631	2116
			domInteractive	238	90	675	212	522	675
			firstPaint	-	-	-	-	-	-
			backgroundConnect	113	34	332	97	219	332
			firstReactRender	46	30	89	14	51	89
			getState	121	84	167	22	128	167
			initialActions	1	0	2	1	1	2
			loadScripts	1409	1136	2039	256	1601	2039
			setupStore	33	6	164	40	46	164
			numNetworkReqs	133	71	223	61	202	223
	Webpack	Standard Home	uiStartup	1672	1477	2280	158	1698	2051
			load	1414	1259	1813	116	1461	1680
			domContentLoaded	1414	1259	1813	116	1460	1680
			domInteractive	105	34	388	48	116	205
			firstPaint	-	-	-	-	-	-
			backgroundConnect	50	27	153	23	56	104
			firstReactRender	31	24	75	9	31	43
			getState	8	4	62	6	8	17
			initialActions	0	0	1	0	0	1
			loadScripts	1383	1241	1733	109	1432	1602
			setupStore	16	7	107	13	15	37
			numNetworkReqs	13	6	74	17	7	66
	Webpack	Power User Home	uiStartup	2550	2213	3363	358	2668	3363
			load	1484	1257	1809	178	1705	1809
			domContentLoaded	1484	1257	1809	178	1705	1809
			domInteractive	164	38	436	126	326	436
			firstPaint	-	-	-	-	-	-
			backgroundConnect	93	28	308	77	130	308
			firstReactRender	54	36	100	20	53	100
			getState	145	77	305	60	187	305
			initialActions	1	0	1	0	1	1
			loadScripts	1455	1236	1763	173	1669	1763
			setupStore	32	6	226	54	22	226
			numNetworkReqs	129	56	293	83	220	293

📊 Page Load Benchmark Results

Current Commit: 1b6ee4e | Date: 11/7/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

• pageLoadTime-> current mean value: 1.04s (±39ms) 🟡 | historical mean value: 1.03s ⬆️ (historical data)
• domContentLoaded-> current mean value: 722ms (±35ms) 🟢 | historical mean value: 716ms ⬆️ (historical data)
• firstContentfulPaint-> current mean value: 77ms (±10ms) 🟢 | historical mean value: 76ms ⬆️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.04s	39ms	1.01s	1.31s	1.07s	1.31s
domContentLoaded	722ms	35ms	703ms	987ms	743ms	987ms
firstPaint	77ms	10ms	60ms	160ms	84ms	160ms
firstContentfulPaint	77ms	10ms	60ms	160ms	84ms	160ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 577 Bytes (0.01%)
• ui: 3.61 KiB (0.05%)
• common: 19 KiB (0.22%)

[LeVinhGithub]

lgtm QA