53 lines
2.1 KiB
Markdown
53 lines
2.1 KiB
Markdown
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## v0.2.0 (2015-03-06)
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### Breaking
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Renames:
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- `register-pure-handler` renamed to `register-handler` (and existing low level `register-handler` becomes `register-handler-base` but is not a part of the API).
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- remove `apply-event` middleware and replace with similar `trim-v`
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- rename `register-subs` to `register-sub` (avoid confusion over possible plurals)
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- rename `set-max-undos` to `set-max-undos!`
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Changes:
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- `undoable` middleware is now a factory. Where before you used this `undoable`,
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you must now use this `(undoable "some explanation")`. See further below.
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### Headline
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- exceptions in handler now reported more sanely via console.error.
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(core.async really messes with a good stack)
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- example `todomvc` available in examples folder.
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- Wiki documentation is now more substantial.
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- introduce new handler middleware: `debug`, `enrich` and `after`
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### Other:
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- exceptions in a go loop are a special type of hell. Improve the reporting of exceptions happening in event handlers.
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- allow Middleware to be registered as a vector. data > functions > macros
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- fix two bugs in undo implementation
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- name licence file correctly, thanks to @smith
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- fix typo in readme, thanks to @btheado
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- Readme now admits to 200 lines of code, not 100.
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- dispatch now explicitly returns nil
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- travis integration (not that we have any tests currently)
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### Details On Undo Changes
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The undo/redo feature built into re-frame is now more functional
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(at the cost of a breaking change).
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There is now an explanation associated with each undo state describing
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modification. This allows an app to inform the user what actions
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they will be undoing or redoing.
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Previously `undoable` was simply middleware, but it is now a middleware factory.
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Essentially, that means you can't use it "plain" anymore, and instead you must
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call it, like this `(undoable "Some explanation")`
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The `explanation` provided to undoable must be either a `string` (static
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explanation) or a function `(db event) -> string`, allowing you to customize
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the undo message based on details of the event.
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