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b7360dd48e Recognize Markdown tables on paste and while typing (#339)
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The paste conversion (issue #30) already handled tables, but any
text/html flavor on the clipboard bypassed it. Code editors (VS Code
with copyWithSyntaxHighlighting) ship the plain text a second time as
styled div/span HTML, so a Markdown table copied there arrived verbatim
while the same text from a plain editor converted fine. Clipboard HTML
without a single structural element (table/list/heading/link/emphasis/
code...) is now treated as equivalent to the plain text; anything from a
rich-text source keeps going through ProseMirror's HTML paste.

Pasting inside a code block never converts anymore -- text is code
there, and the conversion would have split the block around rich nodes.

Hand-typed tables: pressing Enter at the end of a GFM separator row
whose previous sibling is a pipe row replaces the two paragraphs with a
real table (input rules cannot express this -- they see only one
textblock). Conversion is refused inside existing tables; body rows are
then typed cell-wise, with Tab appending rows (#338).

Closes #339

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012aoPvnakfBP28nAfijgUY9
2026-08-15 21:12:00 +02:00
753338f1be Word-style Tab navigation in tables with an accessible exit (#338)
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Tab used to fall through to the browser's focus navigation everywhere.
Inside tables it now moves cell-wise (Shift-Tab backwards) and appends a
new row from the last cell, Word-style. Outside tables every branch
returns false, so Tab keeps leaving the editor.

Capturing Tab inside tables needs a documented way out (WCAG 2.1.2):
Escape places the cursor after the table -- unlike the arrow keys, which
reach the gap cursor (#335) only from the table's edge cells, it works
from every cell, including from a cell selection. When no textblock
follows the table it falls back to the gap cursor position. The
mechanism is announced to assistive tech via an aria-describedby hint
on the editor surface (visually hidden, de+en).

e2e: cell round trip per Tab/Shift-Tab with typed markers, row append
from the last cell, and the full keyboard-only exit (Escape, then Tab
leaves the editor). The table specs now settle briefly after the insert
-- right after it the collab sync can swallow a click's selection
update, which had the markers landing in stale selections.

Closes #338

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012aoPvnakfBP28nAfijgUY9
2026-08-15 21:06:07 +02:00
d76c731473 Merge and split table cells (#337)
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prosemirror-tables already ships mergeCells/splitCell and the schema
(tableNodes) already carries colspan/rowspan -- only the controls were
missing. Adds the two commands, toolbar buttons whose enabled state
follows the selection (merge needs a multi-cell selection, split a
merged cell), and de+en labels.

Both render paths now carry the spans: docToHtml emits colspan/rowspan
(read mode, exports via the HTML path), and the markdown serializer pads
a colspan with empty cells so every row keeps the table's column count
-- rowspan stays lossy there, GFM cannot express it.

e2e drives merge and split through the toolbar; the cell selection is
made per Shift+Click because a keypress in the same tick as the
preceding click races the editor's post-click rendering (keyboard cell
selection itself works, verified interactively with a settled editor).

Closes #337

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012aoPvnakfBP28nAfijgUY9
2026-08-15 20:54:59 +02:00

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