RFR: 8301121: RichTextArea Control (Incubator) [v29]

[Alexander Zuev]

On Mon, 28 Oct 2024 23:01:39 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

>> Incubating a new feature - rich text control, **RichTextArea**, intended to bridge the functional gap with Swing and its StyledEditorKit/JEditorPane. The main design goal is to provide a control that is complete enough to be useful out-of-the box, as well as open to extension by the application developers.
>> 
>> This is a complex feature with a large API surface that would be nearly impossible to get right the first time, even after an extensive review. We are, therefore, introducing this in an incubating module, **jfx.incubator.richtext**. This will allow us to evolve the API in future releases without the strict compatibility constraints that other JavaFX modules have.
>> 
>> Please check out two manual test applications - one for RichTextArea (**RichTextAreaDemoApp**) and one for the CodeArea (**CodeAreaDemoApp**). Also, a small example provides a standalone rich text editor, see **RichEditorDemoApp**.
>> 
>> Because it's an incubating module, please focus on the public APIs rather than implementation.  There **will be** changes to the implementation once/if the module is promoted to the core by popular demand.  The goal of the incubator is to let the app developers try the new feature out. 
>> 
>> **References**
>> 
>> - Proposal: https://github.com/andy-goryachev-oracle/Test/blob/main/doc/RichTextArea/RichTextArea.md
>> - Discussion points: https://github.com/andy-goryachev-oracle/Test/blob/main/doc/RichTextArea/RichTextAreaDiscussion.md
>> - API specification (javadoc): https://cr.openjdk.org/~angorya/RichTextArea/javadoc
>> - RichTextArea RFE: https://bugs.openjdk.org/browse/JDK-8301121
>> - Behavior doc: https://github.com/andy-goryachev-oracle/jfx/blob/8301121.RichTextArea/doc-files/behavior/RichTextAreaBehavior.md
>> - CSS Reference: https://cr.openjdk.org/~angorya/RichTextArea/javadoc/javafx.graphics/javafx/scene/doc-files/cssref.html
>> - InputMap (v3): https://github.com/andy-goryachev-oracle/Test/blob/main/doc/InputMap/InputMapV3.md
>> - Previous Draft PR: https://github.com/openjdk/jfx/pull/1374
>
> Andy Goryachev has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 41 commits:
> 
>  - Merge remote-tracking branch 'origin/master' into 8301121.RichTextArea
>  - break iterator
>  - consume conditionally
>  - Merge remote-tracking branch 'origin/master' into 8301121.RichTextArea
>  - Merge remote-tracking branch 'origin/master' into 8301121.RichTextArea
>  - ask to save on closing window
>  - line numbers, highlight paragraph menus
>  - Merge remote-tracking branch 'origin/master' into 8301121.RichTextArea
>  - whitespace
>  - Merge remote-tracking branch 'origin/master' into 8301121.RichTextArea
>  - ... and 31 more: https://git.openjdk.org/jfx/compare/dc5df6c1...faabd11e

modules/jfx.incubator.richtext/src/main/java/jfx/incubator/scene/control/richtext/model/CodeTextModel.java line 95:

> 93:                 protected void invalidated() {
> 94:                     TextPos end = getDocumentEnd();
> 95:                     SyntaxDecorator d = get();

What does the get() method return? Why is it a decorator? I'm confused...

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PR Review Comment: https://git.openjdk.org/jfx/pull/1524#discussion_r1819932005