Jim906 be9bccd08f Tracker: expand use of mime sniffer
* Add Model::SniffMimeIfNeeded as a faster alternative to
  Model::Mimeset, useful for ensuring that Model::fMimeType is
  initialized regardless of whether the filesystem supports MIME.
* Use SniffMimeIfNeeded when the user interacts with a file.
* Change the return value of Model::Mimeset to match the comment in
  Model.h, although currently no client functions pay attention to the
  return value.
* Fixes #19284.

The SniffMimeIfNeeded calls provide the following behavior:
* AddOneRefSignatures - Populate Open With
* SearchForSignatureEntryList::Relation - Populate Open With
* SearchForSignatureEntryList::RelationDescription - Populate Open
  With descriptions (e.g. "Preferred for Text file").
* TTracker::OpenInfoWindows - Set up Get Info window

Change-Id: Icd0aa98781e191d3f804235b0ab8acfdbe47582d
Reviewed-on: https://review.haiku-os.org/c/haiku/+/9683
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: Adrien Destugues <[email protected]>
2026-01-02 16:32:15 +00:00
2026-01-02 16:32:15 +00:00
2025-12-19 17:45:22 +00:00

Haiku

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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.

Goals

  • Sensible defaults with minimal configuration required.
  • Clean, clear, concise code.
  • Unified desktop environment.

Trying Haiku

Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.

Compiling Haiku

See ReadMe.Compiling.

Contributing

Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!

Contributing code

If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.

If you're having trouble finding something in the source tree, you can use one of our web-based source code browsers:

Contributing documentation

The main piece of documentation that still needs work are the API docs (found in the tree at docs/user). Just find an undocumented class, write documentation for it, and submit a patch.

Contributing translations

See wiki:i18n.

Contributing software ports

See HaikuPorts.

Contributing to our infrastructure

See Infrastructure.

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