Update documentation to reflect the discontinuation. (#2412)

It has been almost two years since the last major Druid release of v0.8.
There have been a few minor additions and fixes since then and those
will be part of one final upcoming release.

However, it is time to make it even more clear that everyone's focus
should be concentrated on one of the more active Rust UI projects. For
the Linebender team that focus will be on
[Xilem](https://github.com/linebender/xilem).

CONTRIBUTING.md

@@ -1,10 +1,12 @@
-# How to contribute
+# UNMAINTAINED
+
+As the Druid project has been discontinued, **we will not be accepting any more contributions**.
 
-**IMPORTANT:** The Druid project is being discontinued. While we will still accept
-all contributions, we'll prefer bug fixes and documentation improvements to new
-features.
+Please take a look at some of our other projects instead, especially the Druid successor [Xilem].
+
+# How to contribute
 
-If you still want to contribute, here are the guidelines you need to follow.
+The following document reflects the state of contribution policy before the project was discontinued.
 
 ## Changelog
 
@@ -251,3 +253,4 @@ Finally, we [create a new Github release](https://docs.github.com/en/github/admi
 [`cargo-edit`]: https://crates.io/crates/cargo-edit
 [semver]: https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html
 [git `pre-push` hook]: https://githooks.com
+[Xilem]: https://github.com/linebender/xilem

README.md

@@ -7,41 +7,38 @@
 [![license](https://img.shields.io/crates/l/druid)](https://github.com/linebender/druid/blob/master/LICENSE)
 [![chat](https://img.shields.io/badge/zulip-join_chat-brightgreen.svg)](https://xi.zulipchat.com)
 
-Druid is an experimental Rust-native UI toolkit. Its main goal is to offer a
-polished user experience. There are many factors to this goal, including
+Druid was an experimental Rust-native UI toolkit. Its main goal was to offer a
+polished user experience. There were many factors to this goal, including
 performance, a rich palette of interactions (hence a widget library to support
 them), and playing well with the native platform.
 See the [goals section](#Goals) for more details.
 
-We have been doing periodic releases of Druid on crates.io, but the API is still unstable. All changes are documented
+We did periodic releases of Druid on crates.io. All changes were documented
 in [the changelog](https://github.com/linebender/druid/blob/master/CHANGELOG.md).
 
-For an overview of some key concepts, see the (work in progress) [Druid book].
+For an overview of some key concepts, see the incomplete [Druid book].
 
 ## Project status
 
-**The Druid project is being discontinued by the core developer team.**
+**UNMAINTAINED**
 
-New development effort is focused on [Xilem], which has a lot of fundamental changes to allow for
+**The Druid project has been discontinued.**
+
+New development effort moved on to [Xilem], which has a lot of fundamental changes to allow for
 a wider variety of applications with better performance, but it also heavily inherits from Druid.
 We see [Xilem] as the future of Druid.
 
 Druid is reasonably usable for [some subset of applications](https://github.com/linebender/druid/issues/1360)
 and has a significant testing history, which ensures some stability and correctness.
-However we don't expect any major new features to be added to Druid. As such we don't recommend
+However, there will not be any new features or bug fixes coming to Druid. As such we don't recommend
 using Druid for brand new applications. If you insist, then at least make sure your application
 doesn't require a feature that Druid doesn't have, e.g. accessibility or 3D support.
 
 ## Contributions
 
-As the Druid project is being discontinued, we will still accept all contributions,
-but we'll prefer bug fixes and documentation improvements to new features.
-
-A very good place to ask questions and discuss development work is our [Zulip
-chat instance], in the #druid-help and #druid channels, respectively.
+As the Druid project has been discontinued, **we will not be accepting any more contributions**.
 
-We gladly accept contributions via GitHub pull requests. Please see
-[CONTRIBUTING.md] for more details.
+Please take a look at some of our other projects instead, especially the Druid successor [Xilem].
 
 ## Example
 
@@ -83,22 +80,14 @@ Druid's existing functionality and widgets. Check [druid_widget_nursery](https:/
 
 ## Using Druid
 
-An explicit goal of Druid is to be easy to build, so please open an issue if you
-run into any difficulties. Druid is available on [crates.io] and should work as
-a lone dependency (it re-exports all the parts of `druid-shell`, `piet`, and `kurbo`
-that you'll need):
+An explicit goal of Druid was to be easy to build.
+Druid is available on [crates.io] and should work as a lone dependency
+(it re-exports all the parts of `druid-shell`, `piet`, and `kurbo` that you'll need):
 
 ```toml
 druid = "0.8.3"
 ```
 
-Since Druid is currently in fast-evolving state, you might prefer to drink from
-the firehose:
-
-```toml
-druid = { git = "https://github.com/linebender/druid.git" }
-```
-
 ### Platform notes
 
 #### Linux
@@ -119,9 +108,9 @@ You can try it out with `--features=x11`.
 
 ## Goals
 
-Druid's goal is to make it easy to write and deploy high quality desktop
+Druid's goal was to make it easy to write and deploy high quality desktop
 applications with a smooth and polished user experience on all common
-platforms. In order to achieve this we strive for a variety of things:
+platforms. In order to achieve this we strived for a variety of things:
 
 - Make it easy to build and package on all supported platforms.
 - Implement abstractions to avoid platform specific quirks.
@@ -137,7 +126,7 @@ platforms. In order to achieve this we strive for a variety of things:
 
 ### Non-Goals
 
-In order to fulfill those goals, we cannot support every use case. Luckily
+In order to fulfill those goals, we couldn't support every use case. Luckily
 the Rust community is working on a variety of different libraries with
 different goals, so here are some of Druid's non-goals and possible
 alternatives that can offer those capabilities:
@@ -147,8 +136,7 @@ alternatives that can offer those capabilities:
 - Adhere to a specific architectural style such as Elm. ([Iced], [Relm])
 - Support rendering to HTML when targeting the web. ([Iced], [Moxie])
 
-Druid is just one of many ongoing [Rust-native GUI experiments]. If it
-doesn't suit your use case, perhaps one of the others will!
+Druid was just one of many ongoing [Rust-native GUI experiments].
 
 ## Concepts
 
@@ -159,7 +147,7 @@ The Druid toolkit uses `druid-shell` for a platform-abstracting application shel
 events, converting them into a platform-agnostic representation, and calling a
 user-provided handler with them.
 
-While `druid-shell` is being developed with the Druid toolkit in mind, it is
+While `druid-shell` was being developed with the Druid toolkit in mind, it was
 intended to be general enough that it could be reused by other projects
 interested in experimenting with Rust GUI. The `druid-shell` crate includes a
 couple of [non-`druid` examples].
@@ -254,7 +242,7 @@ fn build_widget() -> impl Widget<u32> {
 
 ### layout
 
-Druid's layout protocol is strongly inspired by [Flutter's box layout model].
+Druid's layout protocol was strongly inspired by [Flutter's box layout model].
 In Druid, widgets are passed a `BoxConstraint` that provides them a minimum and
 maximum size for layout. Widgets are also responsible for computing appropriate
 constraints for their children if applicable.

docs/src/01_overview.md

@@ -1,6 +1,14 @@
 # Druid
 
-**Note:** Druid is being discontinued in favor of other projects based on the same general principles, such as [Xilem](https://github.com/linebender/xilem/).
+**UNMAINTAINED**
+
+**The Druid project has been discontinued.**
+
+New development effort moved on to [Xilem], which has a lot of fundamental changes to allow for
+a wider variety of applications with better performance, but it also heavily inherits from Druid.
+We see [Xilem] as the future of Druid.
+
+## Introduction
 
 Druid is a framework for building simple graphical applications.
 
@@ -40,3 +48,4 @@ released version of Druid (v0.8).
 [the `Data` trait]: ./03_data.md
 [the `Widget` trait]: ./04_widget.md
 [the `Lens` trait]: ./05_lens.md
+[Xilem]: https://github.com/linebender/xilem

docs/src/09_more_information.md

@@ -15,10 +15,10 @@ These three projects provide the basis that Druid works on
 - [kiro-synth](https://github.com/chris-zen/kiro-synth) An in progress modular sound synthesizer.
 - [psst](https://github.com/jpochyla/psst) A non-Electron GUI Spotify client.
 - [flac_music](https://github.com/wandercn/flac_music) A music player.
-- *pull requests welcome*
+- *And many more*
 
 ## Projects that work with Druid (widgets etc)
-- *pull requests welcome*
+- *No data filled in here*
 
 ## Presentations
 Some presentations about Druid, its background and related topics have been recorded

druid-derive/README.md

@@ -2,4 +2,10 @@
 
 This crate contains the implementations of derive macros for [Druid].
 
+## Project status
+
+**UNMAINTAINED**
+
+No further development is expected on `druid-derive`.
+
 [Druid]: https://github.com/linebender/druid

druid-shell/README.md

@@ -1,12 +1,15 @@
 # druid-shell
 
 `druid-shell` provides a common interface to the various elements of different platform application
-frameworks. It is designed to be used by [Druid], a UI toolkit.
+frameworks. It was designed to be used by [Druid], an experimental UI toolkit.
 
 ## Project status
 
-`druid-shell` v0.8 was forked to form [Glazier], which is where all new development happens.
-No further development is expected on `druid-shell`. We recommend everyone migrates to [Glazier].
+**UNMAINTAINED**
+
+`druid-shell` v0.8 was forked to form [Glazier], which is where some additional development happened.
+No further development is expected on `druid-shell` or [Glazier].
+Our recommendation for new apps is to use [Winit].
 
 ## Design
 
@@ -28,3 +31,4 @@ a safe interface to `druid` and other possible consumers.
 
 [Druid]: https://github.com/linebender/druid
 [Glazier]: https://github.com/linebender/glazier
+[Winit]: https://github.com/rust-windowing/winit

druid/src/lib.rs

@@ -96,7 +96,6 @@
 //!
 //! - png
 //! - jpeg
-//! - jpeg_rayon
 //! - gif
 //! - bmp
 //! - ico
@@ -105,8 +104,6 @@
 //! - pnm
 //! - dds
 //! - tga
-//! - farbfeld
-//! - dxt
 //! - hdr
 //!
 //! You can enable all these formats with `image-all`.