Files
multica/packages/views/locales/en/editor.json
Naiyuan Qing 17ee59ccc5 feat(editor): standard Mermaid viewer with pan/zoom, exports and a real dialog (MUL-4908) (#5564)
* feat(editor): standard Mermaid viewer with pan/zoom, exports and a real dialog (MUL-4908)

Mermaid's fullscreen view was a bespoke lightbox: no visible close button, no
canvas interaction, and a toolbar that scrolled away with wide diagrams. Escape
also stopped working once the iframe took focus, which is why it read as
"impossible to close".

Replace it with a viewer built on the shared Dialog, so it inherits the
backdrop, focus trap, scroll lock, focus restore and Escape handling that HTML
preview already had.

The diagram stays in an `sandbox=""` iframe — isolation is not relaxed to buy
interactivity. Instead the iframe is `pointer-events: none` and pan/zoom is
applied from the host document as a transform on its wrapper. That inversion is
also what keeps Escape working: the iframe can never take focus.

- Viewer: fit-on-open, drag pan, wheel/pinch/keyboard zoom (25%-400%) anchored
  at the pointer, Fit / 100% / Reset, and a header toolbar that cannot scroll
  away. Panning is clamped so the canvas can never be lost.
- Export: `.mmd`, `.svg` and `.png`. Requires `htmlLabels: false` — browsers do
  not rasterize Mermaid's default HTML-in-foreignObject labels through an
  `<img>`; verified in Chromium that they paint zero pixels AND taint the
  canvas, so PNG export silently produced nothing.
- Inline: toolbar lifted out of the scroll container, natural-size rendering
  (small diagrams centered, wide ones scroll at a readable size with edge
  fades), copy source, and a parser message on the error fallback.
- Theme switches no longer close the viewer or discard zoom/position; the
  previous diagram stays on screen until its replacement is ready.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: multica-agent <github@multica.ai>

* fix(editor): stop Mermaid drags selecting text and misfiring the viewer (MUL-4908)

Two gesture defects on the inline diagram, reported by Naiyuan.

1. Dragging a diagram started a native text selection. The iframe is a replaced
   element, so the whole diagram box got painted with the selection highlight
   and the drag ran on into the surrounding comment text. Fixed with
   `user-select: none` on the inline scroller and the viewer canvas.

   Deliberately NOT by preventDefault-ing pointerdown: verified in Chromium that
   it also drops the default focus, which silently kills the viewer's keyboard
   controls (+/-, 0, arrows).

2. Any drag ended in a `click`, so trying to look along a wide diagram opened
   the viewer on top of the user. The inline diagram had no drag handling at
   all — only `onClick`. Suppressing the selection alone would have made this
   fire more reliably, not less, so both had to land together.

   Past a 5px threshold the gesture is a drag for good: releasing no longer
   taps, and a horizontal drag pans the scroller instead. This holds even when
   the diagram has no room to scroll, so an unscrollable diagram cannot open on
   release either. A still click, a sub-threshold jitter, and the expand button
   all still open the viewer.

Touch is left alone — it already pans natively and its vertical drags belong to
the page; the browser announces its takeover with pointercancel. Mouse and pen
have no native drag-to-scroll and are panned here.

Verified in Chromium: still click opens; a 150px drag pans and does not open; a
drag on an unscrollable diagram does not open; 3px jitter still opens; and no
gesture selects text.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: multica-agent <github@multica.ai>

---------

Co-authored-by: Walt <walt@multica.ai>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: multica-agent <github@multica.ai>
2026-07-17 16:07:37 +08:00

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JSON

{
"bubble_menu": {
"bold": "Bold",
"italic": "Italic",
"strikethrough": "Strikethrough",
"code": "Code",
"highlight": "Highlight",
"link": "Link",
"list": "List",
"task_list": "Task list",
"quote": "Quote",
"url_aria_label": "URL",
"heading_dropdown": {
"text": "Text",
"normal_text": "Normal Text",
"heading_1": "Heading 1",
"heading_2": "Heading 2",
"heading_3": "Heading 3"
},
"list_dropdown": {
"bullet_list": "Bullet List",
"ordered_list": "Ordered List",
"task_list": "Task List"
},
"sub_issue": {
"tooltip": "Create sub-issue from selection",
"created": "Created {{identifier}}",
"create_failed": "Failed to create sub-issue"
}
},
"image": {
"view": "View image",
"download": "Download",
"copy_link": "Copy link",
"delete": "Delete",
"link_copied": "Link copied",
"copy_link_failed": "Failed to copy link"
},
"attachment": {
"download_failed": "Couldn't fetch a download link. Try again in a moment.",
"preview": "Preview",
"preview_loading": "Loading preview…",
"preview_failed": "Couldn't load preview",
"preview_too_large": "File is too large to preview. Please download.",
"preview_unsupported": "This file type can't be previewed.",
"close": "Close",
"open_in_new_tab": "Open in new tab",
"remove": "Remove attachment"
},
"link_hover": {
"copy_link": "Copy link",
"open_link": "Open link",
"link_copied": "Link copied",
"copy_failed": "Failed to copy"
},
"mention": {
"group_users": "Users",
"group_issues": "Issues",
"all_members": "All members",
"searching": "Searching...",
"no_results": "No results",
"group_current": "Current page",
"group_recent": "Recently viewed",
"group_search": "Search results"
},
"slash_command": {
"no_skills_configured": "No skills configured",
"no_results": "No matching skills",
"commands": {
"note": "Add a note — won't trigger any agents"
}
},
"code_block": {
"copy_code": "Copy code",
"show_preview": "Show preview",
"show_source": "Show source",
"fullscreen": "Fullscreen"
},
"file_card": {
"uploading": "Uploading {{filename}}"
},
"upload": {
"failed": "Couldn't upload {{filename}}: {{reason}}",
"in_progress": "Uploading…"
},
"title_editor": {
"title_aria_label": "Title"
},
"mermaid": {
"render_error": "Unable to render Mermaid diagram.",
"rendering": "Rendering diagram…",
"viewer_title": "Diagram",
"canvas_label": "Diagram canvas. Drag to pan, scroll to zoom.",
"open_viewer": "Open diagram viewer",
"close_viewer": "Close",
"copy_source": "Copy diagram source",
"show_source": "Show source",
"show_diagram": "Show diagram",
"zoom_in": "Zoom in",
"zoom_out": "Zoom out",
"zoom_fit": "Fit to view",
"zoom_actual": "Actual size",
"reset_view": "Reset view",
"export": "Export",
"export_png": "Download PNG",
"export_svg": "Download SVG",
"export_source": "Download .mmd"
}
}