UnigramDev/Unigram/temp • 2b6f4ac • 1 files, +1/-1 Fix crash when sending non-text content with ephe

UnigramDev/Unigram/temp • 2b6f4ac • 1 files, +1/-1
Fix crash when sending non-text content with ephemeral bot commands (#3323)

CreateSendMessage maps anything that is not an InputMessageText to a null
caption, then dereferenced it unconditionally. Sending a sticker (or any
other media) in a chat where HasEphemeralBotCommands is set crashed with a
NullReferenceException.

Reported by crash telemetry on 12.9.0.0.

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

UnigramDev/Unigram/temp • e53bc6c • 1 files, +17/-0
Translate font and render target error messages (#3324)

DirectWrite's two font-file errors were missing from TranslateText entirely, so
every locale reported them as its own crash group. The render target message was
already translated, but only for a few locales.

Adds the localized variants observed in crash reports:

- font file not found: de, es, fr, it, pt, ru, tr, zh-Hans
- font file access denied: fr, ru
- wrong render target: es, fr, ru

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

UnigramDev/Unigram/temp • 3b186d2 • 1 files, +6/-0
Fix crash when opening the gallery (#3326)

ConvertOf is an x:Bind function binding over ViewModel.SelectedItem, and
Bindings.Update runs from Load before an item has been selected, so the very
first evaluation dereferenced a null GalleryMedia.

ConvertCaption in the same file already guards its input the same way.

Reported by crash telemetry on 12.9.0.0.

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

UnigramDev/Unigram/temp • 63a834d • 1 files, +3/-1
Fix crash when rendering the wallpaper preview bubbles (#3327)

* Fix crash when rendering the wallpaper preview bubbles

The plain-run fast path wrote whatever font size had changed, including 0, and
XAML rejects a FontSize of 0 with E_INVALIDARG. GetOrCreateRun already treats
non-positive as "inherit" and clears the property instead; the fast path now
does the same.

MessageBubble.Mockup reaches this: it calls SetText without a font size, so the
default of 0 replaces the size the bubble was previously rendered with, and the
transition is exactly what triggers the write.

Reported by crash telemetry on 12.9.0.0.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* Use the computed font size in the fast path

Per review: _fontSize is the raw value, fontSize is what AutoFontSize resolved
it to, and the slow path already passes the resolved one to GetOrCreateRun. The
fast path writing the raw value is the actual defect, so write the resolved one
instead of clearing the property — clearing would inherit the parent's size
rather than applying the theme size.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

#unigram