Matthew Kosarek c9608e28d0
Implement framework interface for the dialog window archetype (#176202)
## What's new?
- 🍏 Added the concept of dialogs to the windowing API. New
symbols:
   - `DialogWindowControllerDelegate`
   - `DialogWindowController`
   - `WindowingOwner.createDialogWindowController`
   - `DialogWindow`
   - `WindowControllerCommon`
- 🥘 Introduced the `WindowControllerCommon` mixin to
share common windowing functionality between controller types
- I have NOT yet implemented dialogs. This pull request ONLY adds the
idea to the API. Win32 implementation to follow :)

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.
2025-09-30 19:16:13 +00:00
..

multiple_windows

A reference application demonstrating multi-window support for Flutter using a rich semantics windowing API. At the moment, only the Windows platform is supported.

Running

To run the example application, you must:

  1. Be on Flutter's main release channel
  2. Provide the --enable-windowing flag to flutter