- All canvas content (nodes, edges, preview line) now lives inside a
single <g class='flowchart-content' transform='...'> so a single
attribute change moves/zooms everything together. The fixed viewBox
(1000x700) stays — the transform handles everything.
- Ctrl/Cmd+wheel zooms around the cursor (calls vpZoomAt, the pure
helper committed in C4a).
- Shift-drag (or middle-click) on empty canvas pans the view.
- Snap-to-grid (10-unit) is opt-in via api.setSnapEnabled(true).
When on, moveNode and addNode clamp coords to the grid.
- Plain click on empty canvas still hands off to opts.onEmptyClick
so the controller can prompt for shape kind + label.
destroy() now also removes the wheel listener.
Amit Haridas
New pure functions for the canvas viewport (v4.13.0):
- zoomAt(view, screenX, screenY, factor) — zoom centred on a screen
point, keeping the world point under cursor fixed. Clamped to
[0.25, 4] scale range.
- panBy(view, dx, dy) — additive pan
- reset() — identity transform
- wheelFactor(deltaY) — multiplicative factor per Ctrl+wheel notch
- snap(value, gridSize) — round to nearest grid (0 disables)
The actual SVG transform wrapper + Ctrl+wheel handler + drag-to-pan
+ snap-on-move is the next canvas-layer commit; this commit lands
the testable math.
14 new tests cover: identity reset, cursor-stable zoom, MIN/MAX
clamping, additive pan, wheel factor reciprocity, snap-to-grid
(positive/negative/zero grid sizes).
Amit Haridas
The flowchart editor had Ctrl+Z / Ctrl+Shift+Z keyboard shortcuts
but no discoverable buttons. New History section in the side panel:
- Undo / Redo buttons wired to _store.undo() / _store.redo()
- Counter chip showing ↶/↷ availability
- Buttons auto-disable when stacks are empty (via _store.canUndo()
+ canRedo() evaluated on every store subscription)
The store already exposed undo/redo/canUndo/canRedo — this commit
only adds the UI surface.
Amit Haridas
Three UX/DI wins in one canvas pass:
1. Edge endpoints now land on the source/target shape's BOUNDARY
rather than the centres. Lines no longer cut through nodes. New
pure helpers boundaryPoint() + edgeEndpoints() do the geometry;
nodeCenter() is still used internally for direction vectors.
2. Connect-mode preview line. Alt+drag now draws a dashed line from
the source node's boundary to the live pointer position so the
user can see where the edge will land before releasing. The original
code marked this 'visual feedback deferred to v2'.
3. Selection state is now owned by the canvas (selectedNodeId /
selectedEdgeId variables), not read from .selected DOM classes.
The controller can ask via api.getSelection(). Fixes the fragile
pattern in flowchart-controller.js where Delete/Backspace read
querySelector('.flowchart-node.selected') — that read is now
redundant and the controller can be cleaned up to use getSelection()
directly.
5 new tests cover: edge starts past source centre, edge ends before
target centre, vertical edges connect top/bottom, label background
auto-sizes for long labels, canvas getSelection() reflects clicks.
Amit Haridas
The standalone flowchart generator still used window.prompt() for
editing edge kind/label and changing node kind — defeating the v4.9.9
modal work that's already in flowchart-bundle.js.
This commit switches to the existing window.FlowchartModals helpers:
- onEdgeClick now does two sequential promptInline calls (kind,
then label) instead of two blocking window.prompt calls.
- onShapeMenu uses promptInline for node-kind change.
- onEmptyClick (new) replaces the canvas's old 'auto-add a process
node labelled Node on any empty click' behaviour. The canvas
now hands off x/y to the controller, which prompts for kind +
label before adding.
Canvas change is one line: drop the auto-add and call opts.onEmptyClick.
followups in this batch:
- select/dropdown fields in the modal (currently text-only inputs)
- edge connection geometry (centre-to-centre → boundary)
- connect-mode preview line
- canvas-owned selection state (DOM .selected is fragile)
- undo/redo toolbar + counter
- edge label auto-size + theme-safe background
- zoom/pan, snap-to-grid, copy/paste, mermaid re-import, file IO
Amit Haridas
v4.13.0 ships:
- Quick Switcher overlay (Cmd+P): fuzzy match across recent files
+ open tabs, workspace search wired to the active tab's parent dir
- Inline AI assist (Cmd+K): Rewrite / Shorten / Expand with real
SSE streaming, in-editor typewriter, cancel mid-flight, first-use
confirmation
- electron-updater integration: Help > Check for Updates now polls
GitHub releases through the auto-updater; autoDownload + autoInstall
enabled; browser fallback on dev/error
- 13 commits since v4.12.0, 112 new tests (1187 → 1299), lint+format
green throughout.
Amit Haridas
Inline AI first-use confirmation (v4.13.0):
- inline-ai-controller accepts optional confirmFirstUse + getProviderLabel
deps. On the first action of the session, calls confirmFirstUse with
{providerLabel, selectionLength, action}; if it returns false, aborts
and shows error state. Once confirmed, never re-prompts for the
session.
- new 'ai-assistant:confirm-info' invoke handler returns
{provider, model} (no key material) so the renderer can label the
confirm dialog.
- electronAPI.aiAssistant.confirmInfo() exposed via preload.
- renderer.js wires window.confirm() with the provider label as the
v1 prompt UX; can be upgraded to a custom modal later without
touching the controller.
Check-for-Updates menu (v4.13.0):
- Help > Check for Updates now calls ensureAutoUpdater().check()
instead of opening the Releases page in the browser.
- Falls back to the browser page if the check throws (dev runs with
no app-update.yml, network failures, etc.) so the user always has
a way to update manually.
4 new controller tests cover: confirm called once with provider label
and selection length; declining aborts + surfaces error state; confirm
not asked twice in a session; missing confirmFirstUse dep skips the
prompt and streams normally.
Amit Haridas
electron-updater integration so users get fixes automatically:
- new dependency electron-updater@^6.6.2 in package.json
- electron-builder.config.js publishes to GitHub releases
(owner: concreteinfo, repo: markdownconverter)
- new src/main/auto-updater.js wraps autoUpdater: wires the six
lifecycle events to a 'updates:status' IPC channel, exposes
check() and install() helpers, dev-gates via isDev(), and
swallows the 'missing app-update.yml' error that dev runs hit
- main.js: ensureAutoUpdater() forwards status to the renderer
via mainWindow.webContents.send; ipcMain handlers for
'updates:check' (invoke) and 'updates:install' (invoke)
- preload.js: 'updates:check' / 'updates:install' added to
ALLOWED_SEND_CHANNELS; 'updates:status' added to receive
channels; electronAPI.updates.{check, install, onStatus}
exposed
7 new tests cover event registration, dev-gate behaviour,
'not-available' fallback for missing app-update.yml, typed event
payloads, error forwarding, and install() quitAndInstall.
Amit Haridas
The explorer panel's explorerCurrentDir is hardcoded to null, so
the Quick Switcher's workspace toggle was a no-op. Rather than fix
the broken explorer flow, derive the workspace from the active
tab's filePath's parent directory — the most reliable source we
have without restructuring that panel.
deriveWorkspaceDir() handles POSIX and Windows paths (including
mixed separators and trailing separators), returns null for
untitled / empty inputs so the workspace toggle silently stays
off in those cases.
10 new tests cover POSIX, Windows, mixed-separator, trailing
separator, UNC, and invalid input paths.
Amit Haridas
createInlineAiController() glues the popover, the streaming bridge,
and the CodeMirror editor together. Each Cmd+K opens a fresh
request; the controller:
- reads the active selection from the CodeMirror view
- builds the rewrite/shorten/expand prompt via inline-assist.js
- clears the selection so chunks can fill back in
- dispatches each chunk as it arrives (typewriter into the editor)
- on done: applies the final result (or restores selection on no-op)
- on error: restores the original selection and shows error state
- on Esc: cancels the in-flight request, restores the selection,
hides the popover
main-side streaming handler now reads the AI Assistant plugin's
provider config from settings.json under plugins.ai-assistant.* —
keys never cross the IPC boundary.
renderer.js:
- new getCreateInlineAiController() lazy loader
- new ensureInlineAiController() factory
- new Cmd+K / Ctrl+K keymap handler in the global keydown listener
that resolves the active tab's CodeMirror view via tabManager
16 new controller tests covering show/handleKey wiring, streaming
chunk application, done/error finalization, stale-request filtering,
and detach cleanup.
Amit Haridas
createInlineAiPopover() mounts a floating toolbar anchored to the
current text selection. Three actions (Rewrite / Shorten / Expand)
plus loading spinner with cancel, and an error state with retry and
dismiss. Click handlers dispatch via onAction/onCancel/onRetry.
Positioning flips below the line if there is no room above and
clamps horizontally so the popover stays inside the viewport.
16 new tests covering mount/visibility, idle actions dispatching the
selection text, state transitions (idle / loading / error), Retry
and Dismiss callbacks, and positioning edge cases.
Amit Haridas
AiProviders.completeStream() — async iterable over provider chunks.
- OpenAI-style (openai, ollama, lmstudio, *-compatible): parses
SSE data: {choices:[{delta:{content}}]} payloads.
- Anthropic: parses event: content_block_delta with delta.text.
- Honours caller AbortSignal + internal timeout via AbortController.
- shared parseSseStream() helper handles [DONE] sentinel, partial
lines across chunk boundaries, reader.releaseLock() in finally.
main.js IPC:
- 'ai-assist-stream:start' (send) registers a per-requestId entry
in a Map with an AbortController, iterates completeStream, and
forwards each chunk via 'ai-assist-stream:chunk' (send).
- 'ai-assist-stream:cancel' (send) aborts the in-flight request.
- Terminal 'done' or 'error' (with code+message) is sent after
each stream; renderer can correlate by requestId.
preload.js exposes aiAssist.{start, cancel, onChunk, onDone, onError}.
5 new tests covering OpenAI delta parsing, Anthropic content_block_delta
parsing, and three synchronous-error paths (no fetch, no messages,
missing key).
Amit Haridas
buildAssistPrompt(action, selection) returns the {system, messages}
payload for rewrite/shorten/expand. Enforces 8KB selection cap and
typed errors with codes (unknown_action, bad_selection,
empty_selection, selection_too_large) so the IPC layer can map them
to user-friendly messages.
applyAssistResult(original, newText) trims the response and rejects
empty/unchanged payloads so a no-op streaming chunk doesn't churn
the editor.
15 new tests cover action coverage, prompt content, all four error
codes, cap-edge (exactly 8KB OK, 8KB+1 rejected), and trim semantics.
Amit Haridas
End-to-end wiring of the Quick Switcher overlay:
- main.js File menu: new 'Quick Switcher...' item with Cmd+P
accelerator (moved from Print Preview; Print Preview stays in
File > Print submenu but loses its shortcut). Recent Files
submenu and its buildRecentFilesMenu() helper removed.
- new 'recent-files:get' invoke IPC handler returns the recent
files array on demand.
- preload.js: 'recent-files:get' + 'show-quick-switcher' added
to channel whitelists; quickSwitcher.getRecentFiles() exposed.
- renderer.js: lazy-mounts the overlay on first 'show-quick-switcher'
message, fetches recent files via IPC, and shows the overlay.
File-open goes through the existing 'open-file-path' channel.
Workspace dir is intentionally null for v4.13.0 — the workspace
search toggle is wired but a no-op until the explorer panel exposes
its current directory (next iteration).
Amit Haridas
createQuickSwitcherOverlay() mounts a centered modal with:
- input box with autocomplete=off
- workspace toggle (off by default — recent + open tabs only)
- keyboard nav: ArrowDown/Up move selection, Enter opens,
Escape and backdrop-click hide
- mouse hover also moves selection
- debounced refresh (default 80ms; 0 in tests)
- destroy() cleanly removes DOM + listeners
Rank/filter logic delegated to fuzzy-matcher.js. Recent and open tabs
are always in the candidate set; workspace files are added only when
the toggle is on. Selection clamps to bounds after every refresh.
23 new tests covering mount/focus/destroy, initial render, typing &
filtering, full keyboard nav, workspace toggle behavior, and the
selected-path escape hatch.
Amit Haridas
listWorkspaceFiles() walks a directory recursively, returning
[{path, name}] for files matching a configurable extension allowlist.
Skips hidden dirs, node_modules, dist/build/coverage, and walks past
permission-denied subdirs instead of throwing. Default allowlist is
markdown variants + .txt; default maxResults caps pathological
workspaces at 2000 entries.
Wired through 'quick-switcher:list-files' invoke channel + a
quickSwitcher.listFiles() convenience method on the preload bridge.
Main-process errors collapse to [] rather than crashing the overlay.
16 new tests covering flat dirs, recursion, skip lists, custom
extensions, maxResults cap, and validation errors.
Amit Haridas
Tiered scoring (exact 1.0 / stem 1.0 / prefix 0.8 / subseq 0.5+bonuses
capped 0.79) with leftmost+rightmost greedy alignment — rightmost wins
for extension/suffix queries ('md' against 'readme.md'), leftmost wins
for prefix queries ('re' against 'readme.md'). Boost-aware rankResults
applies recency x2 and open-tabs x1.5 multiplicatively; empty query
falls back to boosts alone.
Pure module, no DOM/IPC/Node — runs in renderer or main. 22 new tests.
Amit Haridas
Amit Haridas