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fix(browse): keep read-only YAML/.zddc selectable & copyable

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The YAML viewer mounted CodeMirror with readOnly:'nocursor', which removes
the textarea from focus and kills click-drag selection — so copying a
read-only .zddc snippet was impossible without flipping on admin mode to
make it writable. Use readOnly:true instead: non-editable but focusable,
so the user can select and copy. autofocus:false still keeps arrow-key
tree navigation intact until they click into the editor.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
ZDDC 2026-06-01 13:13:03 -05:00
parent e258b0fa3d
commit 91e6d1ec82
1 changed files with 8 additions and 3 deletions
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11
browse/js/preview-yaml.js
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@ -484,9 +484,14 @@
// .zddc files without diverting into the editor. User // .zddc files without diverting into the editor. User
// clicks (or tabs) into the editor when they want to type. // clicks (or tabs) into the editor when they want to type.
autofocus: false, autofocus: false,
// CodeMirror's "nocursor" mode is the truest read-only: // Read-only uses readOnly:true (NOT "nocursor"): the editor
// selection allowed for copy, no caret, no edit affordances. // stays focusable so the user can click in, select text, and
readOnly: !writable ? 'nocursor' : false, // copy — they just can't edit. "nocursor" removes the textarea
// from focus, which also kills click-drag selection (the whole
// reason a viewer would otherwise force admin mode just to copy
// a .zddc snippet). autofocus:false keeps arrow-key tree nav
// intact until the user deliberately clicks into the editor.
readOnly: !writable,
}); });
// Stash the node on the editor so the lint helper can decide // Stash the node on the editor so the lint helper can decide
// whether to apply the .zddc schema layer. // whether to apply the .zddc schema layer.