Phase A.5: bring rApp mini-canvases to parity with the main rSpace canvas
on keyboard shortcuts and Space-to-grab behavior, plus ship reusable
primitives for fit-view and zoom chrome.
shared/canvas-interaction.ts — extend CanvasInteractionController:
• enableSpaceToGrab — Space sets grab cursor and flips isSpaceHeld()
• enableKeyboardShortcuts — 0 fit, +/- zoom, arrows pan, Ctrl+Z/Y
undo/redo, Delete/Backspace delete (with shadow-DOM-aware text
input detection so inline editors still work)
• zoomByFactor() helper for chrome +/- buttons
shared/canvas-viewport.ts (new):
• fitViewToRects / fitViewToNodes — standard fit algorithm matching
the main canvas (40px padding, 0.1–1.5 clamp default)
• persistViewport / restoreViewport — localStorage under
rspace_viewport:<key> with finite-value validation
shared/components/rspace-canvas-chrome.ts (new):
• <rspace-canvas-chrome> web component — zoom out/in/fit buttons +
percent indicator + optional grid toggle. Emits canvas-zoom-*
events. Available as drop-in for new/future canvases.
Migrate 8 rApp canvases to opt into space-to-grab + keyboard fit:
rsocials planner (keeps existing isEnabled gate), rsocials workflow,
rminders automation, rflows, rgov circuit, rnetwork CRM graph,
applet-circuit-canvas. rTime skips enableSpaceToGrab because it has
its own Space tracking integrated with node-drag state.
Bump asset cache versions so browsers pick up the new JS.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Jeff Emmett
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