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Save for Web: saving and Preview in Browser warn when an image couldn't be decoded

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document.exportForWeb renders the artboard or the art and writes GIF,
JPEG, PNG-8 or PNG-24 files. When the art held an image that the
renderer could not decode, the renderer drew nothing for it, and the
files lacked the image with no message: the reply had no warnings at
all. A raster export of the same art warns that "an image couldn't be
decoded and is missing from the picture".

document.exportForWeb and document.exportForWeb.preview now compare
decode_failures before and after they render, as raster exports do,
and their replies carry that text in `warnings`. The files are still
written. Save, Download and Preview in Browser in the Save for Web
dialog show the first warning in the status bar as Save As shows a
save's notes.

Docs: docs/mcp.md (Save for Web), docs/control-protocol.md.
This commit is contained in:
dotCooCoo
2026-10-18 01:32:01 +07:00
committed by bflatastic
parent f5d61f6f27
commit a03583fc73
6 changed files with 112 additions and 15 deletions
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docs/control-protocol.md
+2 -1
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@@ -675,7 +675,8 @@ a preset) plus `__view` (`original`, `optimized`, `2up`, `4up`), `__zoom` (`fit`
`__color` (the colour table's selected colour). `ui.dialog.confirm` remembers the settings and saves (a save panel for
the image, or the page with HTML output; the web downloads the files); with `discard: true` it is Done: it remembers
the settings and closes. `file.saveForWeb` with settings saves without the dialog, and `file.saveForWeb.browser`
writes the HTML page to a temporary folder and opens it in the default browser (desktop).
writes the HTML page to a temporary folder and opens it in the default browser (desktop). Both return the export's
`warnings`, and the status bar shows the first one as Save As shows a save's notes.
PSD Options: Export As… with the PSD format (`file.exportAs {format: "psd"}`, then the save dialog) opens `psdOptions`:
the raster rows of PNG Options (`ppi`, `background`, `antiAlias`), then `colorModel` (`rgb`, `cmyk`, `gray`; a CMYK