feat(capture): fully support capture into canvas cards (#1124)

* feat(capture): add targeted canvas node capture

* chore(capture): apply review polish

* fix(capture): abort .canvas capture without node id

* fix(capture): prevent concurrent canvas overwrite

* fix(capture): allow vault picker and clear stale canvas node ids

* codex: address PR review feedback (#1124)

* codex: fix PR #1124 CI regressions

* codex: avoid duplicate capture path formatting (#1124)

* codex: fix capture success notice placement (#1124)

* codex: guard canvas file-card cursor fallback (#1124)

* codex: restrict picker to capturable canvas nodes (#1124)

* codex: remove redundant canvas destination source-path reset (#1124)

* codex: fix picker button disable typing (#1124)

* codex: address PR review feedback (#1124)

* codex: address PR review feedback (#1124)

* codex: fix canvas capture correctness regressions (#1124)

* codex: harden stale canvas node config fallback (#1124)

* codex: add canvas file-card regressions and remove dead helpers (#1124)

* fix(capture): abort invalid insert-after and align canvas link behavior

* test(capture): assert choice abort notices are always visible

Author: chhoumann

docs/docs/Choices/CaptureChoice.md

@@ -48,9 +48,9 @@ If you have a tag called `#people`, and you type `#people` in the _Capture To_ f
 -   _Create file if it doesn't exist_ will do as the name implies - you can also create the file from a template, if you specify the template (the input box will appear below the setting).
 -   _Task_ will format your captured text as a task.
 -   _Use editor selection as default value_ controls whether the current editor selection is used as `{{VALUE}}`. Choose **Follow global setting**, **Use selection**, or **Ignore selection** (global default lives in Settings > Input). This does not affect `{{SELECTED}}`.
--   _Write to bottom of file_ will put whatever you enter at the bottom of the file.
+-   _Write position_ controls where Capture writes: top, bottom, after line, and active-file cursor modes.
 -   _Append link_ will append a link to the file you have open in the file you're capturing to. You can choose between three modes:
-    -   **Enabled (requires active file)** – keeps the legacy behavior and throws an error if no note is focused
+    -   **Enabled (requires active file)** – keeps the legacy behavior and throws an error if no note is focused (except Canvas-triggered capture, where link insertion is skipped)
     -   **Enabled (skip if no active file)** – inserts the link when possible and silently drops `{{LINKCURRENT}}` if nothing is open
     -   **Disabled** – never append a link
 
@@ -60,6 +60,78 @@ If you have a tag called `#people`, and you type `#people` in the _Capture To_ f
     -   **End of line** - Places the link at the end of the current line
     -   **New line** - Places the link on a new line below the cursor
 
+## Canvas Capture Notes
+
+QuickAdd supports two Canvas capture workflows:
+
+- Capture to one selected card in the active Canvas view
+- Capture to a specific card in a specific `.canvas` file
+
+### 1) Capture to selected card in active Canvas
+
+This mode is enabled when **Capture to active file** is on and the active leaf
+is a Canvas.
+
+Supported card targets:
+
+- Text cards
+- File cards that point to markdown files
+
+### 2) Capture to specific card in specific `.canvas` file
+
+This mode is enabled when **Capture to active file** is off, the capture path
+resolves to a `.canvas` file, and **Target canvas node** is set.
+
+When the capture path is a `.canvas` file, QuickAdd shows a node picker that
+helps you choose a node id directly from that board.
+
+### Write position support in Canvas
+
+- Text cards support: **Top of file**, **Bottom of file**, **After line...**
+- File cards (markdown targets) support: **Top of file**, **Bottom of file**, **After line...**
+- Canvas does not support cursor-based modes: **At cursor**, **New line above cursor**, **New line below cursor**
+
+If **Capture to active file** is enabled and you leave the default write
+position at **At cursor**, capture will abort in Canvas until you switch to a
+supported mode.
+
+Canvas capture requires exactly one selected card in selected-card mode. If the
+selection is missing, multi-select, or unsupported, QuickAdd aborts with a
+notice instead of writing to the wrong place.
+
+When append-link is set to **Enabled (requires active file)** and capture runs
+from a Canvas card without a focused Markdown editor, the capture still writes
+and link insertion is skipped.
+
+A dedicated Canvas walkthrough page will return in a future update.
+
+### Canvas Capture FAQ
+
+**Why did my capture abort in Canvas?**
+
+Most often one of these is true:
+
+- No card is selected
+- More than one card is selected
+- The selected card type is unsupported
+- The selected write mode is cursor-based
+
+**Can I target a specific card in a Canvas file?**
+
+Yes. Set capture path to a `.canvas` file and choose a **Target canvas node**.
+
+**Does "At cursor" work in Canvas cards?**
+
+No. Use top, bottom, or insert-after placement.
+
+**Can I capture to a file card that points to a Canvas file?**
+
+No. File-card capture supports markdown targets only.
+
+**Can I still create new Canvas files from templates?**
+
+Yes. Template choices support `.canvas` templates.
+
 ## Insert after
 
 Insert After will allow you to insert the text after some line with the specified text.

src/constants.ts

@@ -96,9 +96,9 @@ export const DATE_VARIABLE_REGEX = new RegExp(
 );
 export const LINK_TO_CURRENT_FILE_REGEX = new RegExp(/{{LINKCURRENT}}/i);
 export const FILE_NAME_OF_CURRENT_FILE_REGEX = new RegExp(/{{FILENAMECURRENT}}/i);
-export const MARKDOWN_FILE_EXTENSION_REGEX = new RegExp(/\.md$/);
-export const CANVAS_FILE_EXTENSION_REGEX = new RegExp(/\.canvas$/);
-export const BASE_FILE_EXTENSION_REGEX = new RegExp(/\.base$/);
+export const MARKDOWN_FILE_EXTENSION_REGEX = new RegExp(/\.md$/i);
+export const CANVAS_FILE_EXTENSION_REGEX = new RegExp(/\.canvas$/i);
+export const BASE_FILE_EXTENSION_REGEX = new RegExp(/\.base$/i);
 export const JAVASCRIPT_FILE_EXTENSION_REGEX = new RegExp(/\.js$/);
 export const MACRO_REGEX = new RegExp(/{{MACRO:([^\n\r}]*)}}/i);
 export const TEMPLATE_REGEX = new RegExp(

src/engine/CaptureChoiceEngine.notice.test.ts

@@ -106,6 +106,7 @@ import { CaptureChoiceEngine } from "./CaptureChoiceEngine";
 import type { IChoiceExecutor } from "../IChoiceExecutor";
 import type ICaptureChoice from "../types/choices/ICaptureChoice";
 import { MacroAbortError } from "../errors/MacroAbortError";
+import { ChoiceAbortError } from "../errors/ChoiceAbortError";
 import { settingsStore } from "../settingsStore";
 
 const defaultSettingsState = structuredClone(settingsStore.getState());
@@ -153,7 +154,7 @@ const createCaptureChoice = (): ICaptureChoice => ({
 	},
 });
 
-const createEngine = (abortMessage: string) => {
+const createEngine = (abortError: Error) => {
 	const app = {
 		vault: {
 			adapter: {
@@ -185,7 +186,7 @@ const createEngine = (abortMessage: string) => {
 	);
 
 	(engine as any).getFormattedPathToCaptureTo = vi.fn(async () => {
-		throw new MacroAbortError(abortMessage);
+		throw abortError;
 	});
 
 	return engine;
@@ -202,7 +203,7 @@ describe("CaptureChoiceEngine cancellation notices", () => {
 			...settingsStore.getState(),
 			showInputCancellationNotification: true,
 		});
-		const engine = createEngine("Input cancelled by user");
+		const engine = createEngine(new MacroAbortError("Input cancelled by user"));
 
 		await engine.run();
 
@@ -218,7 +219,7 @@ describe("CaptureChoiceEngine cancellation notices", () => {
 			showInputCancellationNotification: false,
 		});
 
-		const engine = createEngine("Input cancelled by user");
+		const engine = createEngine(new MacroAbortError("Input cancelled by user"));
 
 		await engine.run();
 
@@ -231,7 +232,7 @@ describe("CaptureChoiceEngine cancellation notices", () => {
 			showInputCancellationNotification: false,
 		});
 
-		const engine = createEngine("Target file missing");
+		const engine = createEngine(new MacroAbortError("Target file missing"));
 
 		await engine.run();
 
@@ -241,6 +242,24 @@ describe("CaptureChoiceEngine cancellation notices", () => {
 		);
 	});
 
+	it("shows notices for choice abort errors even when input cancellation notifications are disabled", async () => {
+		settingsStore.setState({
+			...settingsStore.getState(),
+			showInputCancellationNotification: false,
+		});
+
+		const engine = createEngine(
+			new ChoiceAbortError("Insert-after target not found: '# Missing'."),
+		);
+
+		await engine.run();
+
+		expect(noticeClass.instances).toHaveLength(1);
+		expect(noticeClass.instances[0]?.message).toContain(
+			"Capture execution aborted: Insert-after target not found: '# Missing'.",
+		);
+	});
+
 	it("shows a notice when the target file is missing and create is disabled", async () => {
 		settingsStore.setState({
 			...settingsStore.getState(),