Skip to contents

Changelog

Source: NEWS.md

blockr.core 0.1.3

  • str_value() now covers every domain class that has a full-tier format() / print() counterpart, completing the compact rendering tier: the scalars link, board_option, llm_model_option and plugin; the containers blocks, stacks, links, board_options and plugins; and the whole board. Each class also gains a utils::str() method that thinly displays its str_value(); a container or board renders one element per line below a <class[n]> header (#212).
  • New exported generic external_ctrl_vars() (with a block method) and predicate has_external_ctrl() provide a public, polymorphic API for resolving a board component’s external_ctrl declaration into the set of externally controllable variable names. This promotes the previously internal block_external_ctrl_vars(), letting dependent packages dispatch on it (e.g. for dock extensions) instead of re-reading the raw external_ctrl attribute (#192).
  • blockr_deser.list() now forwards ... to the dispatched per-class method, so callers can thread additional context (e.g. a producer version) down to nested deserializers. Previously such arguments were silently dropped at the list-dispatch boundary (#186).

blockr.core 0.1.2

CRAN release: 2026-04-28

  • The mod slots in update(...) payloads for blocks, links and stacks now uniformly expect a delta shape: a named list keyed by entry ID, where each entry is a named list of argument values to apply on top of the live entry.
    • For blocks, keys must be in block_external_ctrl_vars(blk) — non-ctrl-able changes go through rm + add. Ctrl-arg writes hit the corresponding reactiveVal in place; block_name (always treated as ctrl-able) updates the block’s registry attribute.
    • For links and stacks, deltas are merged onto the current entry via the new update_link() / update_stack() S3 generics. The default methods reconstruct the entry through its stored constructor, preserving sub-class attributes. Sub-class owners (e.g. dock_stack adding color) only need to register a method when their constructor deviates from the convention (#175).
  • block_external_ctrl_vars() always includes "block_name" — every block can be renamed through update(...) regardless of its external_ctrl opt-in. The default ctrl plugin panel renders a block_name field on every block card alongside any opted-in ctrl vars. block_supports_external_ctrl() (which would now be TRUE for every block) has been removed; the gates that used to call it have been simplified accordingly.
  • The default block_server.block now constructs a block_name reactiveVal per block and appends it to the vars list passed to the ctrl plugin. Two guarded observers keep that reactiveVal in sync with the block’s block_name attribute on the board (one emits an update(mod = ...) when the ctrl plugin writes the rv; the other pulls registry-attr changes back into the rv). The ctrl_block_server plugin signature is unchanged — block authors and custom ctrl plugins see uniform vars reactiveVals.
  • A blockr option attach_default_packages can be set to opt into evaluating block expressions with objects from default packages directly available.
  • Add ctrl_block() plugin for external block control, allowing blocks to be driven programmatically from outside the standard block UI.
  • Add clear_board() for removing all blocks/stacks from a board.
  • Add bbquote() and helpers (., ..) for cleaner code generation via bquote()-based quasiquotation.
  • Export custom_plugins() and custom_options() for easier board customization.
  • Add block_metadata() for retrieving per-block metadata and attach block metadata with defaults to block objects.
  • Export test utilities (blockr_test_exports(), new_mock_session(), export_safely()) for use in downstream package tests.

blockr.core 0.1.1

CRAN release: 2025-12-06

  • Add Block-level notifications via (optional) expr server return value component cond.
  • Export get_board_option_value() to make available current option settings via session$UserData.
  • Introduce (optional) dependency on thematic to auto-style plots.
  • Export toolbar_ui() which takes case of the “core” toolbar UI component.
  • Utility functions chr_ply() and related, as well as miscellaneous utilities such as set_names(), coal(), etc. are now exported for use in dependent packages.
  • Export export_code() to make it easier for third-party generate_code() plugin implementations.
  • Use evaluate::evaluate() to capture plots.
  • Add new_fixed_block() for applying a fixed (i.e. non-paramtetrized) transformation to data input.
  • Board server callbacks are invoked with an additional argument session.
  • Export assertion utilities such as is_string(), is_count(), etc.
  • Improved ser/des, which now includes package/constructor information for all board, blocks, stacks and options. The corresponding infra
  • Board options now contain UI/server components to provide more options for customization. Also blocks can require certain options to be available.
  • Introduces block_render_trigger() to control per block class when to re-render the block output.
  • Rework of block notifications to provide a reactiveValues() object containing notification types a separate components.
  • Auto-ID generation can now be customized with a default provided by the ids package (if available).
  • Use the glue package for logging/block notifications; add a glue-based text block.
  • New board restore mechanism based on session$reload().
  • Improvements to the registry: block icons and a fixed set of categories.

blockr.core 0.1.0

CRAN release: 2025-05-20

  • Initial CRAN submission