mcp-v0.12.0

What's New

• Textbox editing — Click, type, and select text directly inside VML and DrawingML textboxes; full caret and selection support.
• Font family combobox — Browse and select fonts from the toolbar; font selection flows through custom UI.
• Font size API — ui.viewport exposes available font sizes for custom toolbars and programmatic queries.
• Comments API: activate-only highlight — ui.comments.setActive() marks a comment active without scrolling or moving selection.
• Pending selection on comment events — pending-comments-update event carries pendingSelection captured before the live DOM selection clears.
• Scroll container access — ui.viewport.getScrollContainer() returns the editor's resolved scroll element for overlay consumers.
• Text range viewport geometry — ui.viewport.getRect() now accepts Document API text addresses and targets, not just entities.
• Sidebar viewport observation — ui.viewport.observe fires when the comments rail opens or closes.
• Zoom modes — Manual and fit-width zoom modes with observable transitions, viewport metrics, useSuperDocZoom React hook, and toolbar command.
• Table of contents hover — Hovering TOC entries highlights corresponding document sections.

Improvements

• Multi-column section balancing — Continuous sections now balance correctly; explicit per-column widths preserved throughout layout.
• Column spacing precision — Per-column gaps drive separator positions per ECMA-376; unequal-width columns honor per-column w:space values.
• Font substitutes load before measurement — Metric-compatible fallbacks for Calibri, Cambria, Arial, Times New Roman, and Courier New load upfront; no reflow.
• Tracked table changes consolidation — Inline cell edits fold into a single review item instead of separate entries; one decision applies to the whole table.

Fixes

• Paragraphs styled with pageBreakBefore no longer insert blank pages when directly following explicit page breaks.
• Textbox text alignment now matches Word behavior when tables are nested inside textboxes.
• Table cell selection highlights render over empty space; multiline selections show full-width interior lines.
• Plan engine recovers from stale block identities on recompile without crashes.
• Tab carets anchor to line top (not bottom); soft-break continuation carets position at line start with alignment-aware offset.
• DOCX export preserves generated line breaks as <w:br/> elements instead of raw newlines.
• Font toolbar no longer races on editor handoff; combobox selection handles edge cases correctly.
• Viewport geometry invalidates on sidebar toggle without pixel-level jitter.
• Zoom state — PDF documents contribute to viewport metrics; mode-only transitions emit correctly.
• TOC anchor navigation preserves bookmarkStart/bookmarkEnd order.
• Image alpha modifiers process correctly on import and export.
• Font picker keyboard behavior consistent across selection modes.
• Formatting is preserved when typing text over a toolbar font selection.