Skip to content

[feat] Add BidiComponentMixin and Widget Presenter#12685

Merged
sfc-gh-bnisco merged 2 commits intodevelopfrom
bnisco/ccv2-stack-3
Oct 24, 2025
Merged

[feat] Add BidiComponentMixin and Widget Presenter#12685
sfc-gh-bnisco merged 2 commits intodevelopfrom
bnisco/ccv2-stack-3

Conversation

@sfc-gh-bnisco
Copy link
Copy Markdown
Collaborator

@sfc-gh-bnisco sfc-gh-bnisco commented Oct 3, 2025 •
edited
Loading

Describe your changes

Adds the BidiComponentMixin to support CCv2.

  • A BidiComponentMixin class that adds the _bidi_component method to the DeltaGenerator
  • Support for mixed data serialization, including automatic detection and handling of dataframes
  • Event-based callback system with the on_{event}_change pattern
  • State management with default values
  • Efficient serialization of complex data structures using Arrow

GitHub Issue Link (if applicable)

Testing Plan

  • Unit Tests (Python): Added comprehensive test coverage for the new bidirectional component system, including tests for serialization/deserialization, event handling, state management, and dataframe handling
  • The implementation includes tests for edge cases such as invalid JSON, missing data, and fallback behaviors
  • No E2E tests are included in this PR as they would require frontend implementation which will be added in a later PR

Contribution License Agreement

By submitting this pull request you agree that all contributions to this project are made under the Apache 2.0 license.

@snyk-io
Copy link
Copy Markdown
Contributor

snyk-io bot commented Oct 3, 2025 •
edited
Loading

✅ Snyk checks have passed. No issues have been found so far.

Status Scanner Critical High Medium Low Total (0)
✅ Open Source Security 0 0 0 0 0 issues
✅ Licenses 0 0 0 0 0 issues

💻 Catch issues earlier using the plugins for VS Code, JetBrains IDEs, Visual Studio, and Eclipse.

@github-actions
Copy link
Copy Markdown
Contributor

github-actions bot commented Oct 3, 2025 •
edited
Loading

✅ PR preview is ready!

Name Link
📦 Wheel file https://core-previews.s3-us-west-2.amazonaws.com/pr-12685/streamlit-1.50.0-py3-none-any.whl
📦 @streamlit/component-v2-lib Download from artifacts
🕹️ Preview app pr-12685.streamlit.app (☁️ Deploy here if not accessible)

This was referenced Oct 3, 2025
Merged
Merged
Merged
Merged
Merged
Merged
Merged
@sfc-gh-bnisco Graphite App
Copy link
Copy Markdown
Collaborator Author

sfc-gh-bnisco commented Oct 3, 2025 •
edited
Loading

This stack of pull requests is managed by Graphite. Learn more about stacking.

This was referenced Oct 3, 2025
Merged
Merged
Merged
Merged
Merged
Merged
Merged
Merged
@sfc-gh-bnisco sfc-gh-bnisco added change:feature PR contains new feature or enhancement implementation impact:internal PR changes only affect internal code security-assessment-completed labels Oct 3, 2025 — with Graphite App
@github-actions
Copy link
Copy Markdown
Contributor

github-actions bot commented Oct 3, 2025 •
edited
Loading

📉 Python coverage change detected

The Python unit test coverage has decreased by 0.3273%

  • Current PR: 92.4675% (20020 statements, 1508 missed)
  • Latest develop: 92.7948% (19708 statements, 1420 missed)

💡 Consider adding more unit tests to maintain or improve coverage.

Coverage by files
Name Stmts Miss Cover
streamlit/__init__.py 139 0 100%
streamlit/__main__.py 3 3 0%
streamlit/auth_util.py 100 25 75%
streamlit/cli_util.py 39 6 85%
streamlit/column_config.py 3 0 100%
streamlit/commands/__init__.py 0 0 100%
streamlit/commands/echo.py 54 11 80%
streamlit/commands/execution_control.py 59 10 83%
streamlit/commands/experimental_query_params.py 40 2 95%
streamlit/commands/logo.py 41 6 85%
streamlit/commands/navigation.py 106 2 98%
streamlit/commands/page_config.py 101 4 96%
streamlit/components/__init__.py 0 0 100%
streamlit/components/lib/__init__.py 0 0 100%
streamlit/components/lib/local_component_registry.py 35 2 94%
streamlit/components/types/__init__.py 0 0 100%
streamlit/components/types/base_component_registry.py 14 0 100%
streamlit/components/types/base_custom_component.py 49 6 88%
streamlit/components/v1/__init__.py 5 0 100%
streamlit/components/v1/component_arrow.py 33 8 76%
streamlit/components/v1/component_registry.py 41 3 93%
streamlit/components/v1/components.py 4 4 0%
streamlit/components/v1/custom_component.py 85 7 92%
streamlit/components/v2/__init__.py 0 0 100%
streamlit/components/v2/bidi_component/__init__.py 4 0 100%
streamlit/components/v2/bidi_component/constants.py 5 0 100%
streamlit/components/v2/bidi_component/main.py 109 61 44%
streamlit/components/v2/bidi_component/serialization.py 81 5 94%
streamlit/components/v2/bidi_component/state.py 13 1 92%
streamlit/components/v2/component_definition_resolver.py 30 9 70%
streamlit/components/v2/component_file_watcher.py 117 9 92%
streamlit/components/v2/component_manager.py 96 20 79%
streamlit/components/v2/component_manifest_handler.py 24 0 100%
streamlit/components/v2/component_path_utils.py 68 5 93%
streamlit/components/v2/component_registry.py 118 11 91%
streamlit/components/v2/get_bidi_component_manager.py 8 8 0%
streamlit/components/v2/manifest_scanner.py 224 25 89%
streamlit/components/v2/presentation.py 84 19 77%
streamlit/config.py 412 12 97%
streamlit/config_option.py 79 3 96%
streamlit/config_util.py 288 7 98%
streamlit/connections/__init__.py 6 0 100%
streamlit/connections/base_connection.py 45 0 100%
streamlit/connections/snowflake_connection.py 60 13 78%
streamlit/connections/snowpark_connection.py 44 3 93%
streamlit/connections/sql_connection.py 56 6 89%
streamlit/connections/util.py 33 0 100%
streamlit/cursor.py 82 2 98%
streamlit/dataframe_util.py 501 45 91%
streamlit/delta_generator.py 205 6 97%
streamlit/delta_generator_singletons.py 76 8 89%
streamlit/deprecation_util.py 59 4 93%
streamlit/development.py 1 0 100%
streamlit/elements/__init__.py 0 0 100%
streamlit/elements/alert.py 60 0 100%
streamlit/elements/arrow.py 198 15 92%
streamlit/elements/balloons.py 10 0 100%
streamlit/elements/bokeh_chart.py 27 0 100%
streamlit/elements/code.py 20 1 95%
streamlit/elements/deck_gl_json_chart.py 104 10 90%
streamlit/elements/dialog_decorator.py 38 0 100%
streamlit/elements/doc_string.py 227 9 96%
streamlit/elements/empty.py 16 4 75%
streamlit/elements/exception.py 101 10 90%
streamlit/elements/form.py 54 2 96%
streamlit/elements/graphviz_chart.py 35 1 97%
streamlit/elements/heading.py 56 0 100%
streamlit/elements/html.py 48 0 100%
streamlit/elements/iframe.py 29 0 100%
streamlit/elements/image.py 32 0 100%
streamlit/elements/json.py 39 2 95%
streamlit/elements/layouts.py 140 3 98%
streamlit/elements/lib/__init__.py 0 0 100%
streamlit/elements/lib/built_in_chart_utils.py 387 26 93%
streamlit/elements/lib/color_util.py 100 4 96%
streamlit/elements/lib/column_config_utils.py 168 1 99%
streamlit/elements/lib/column_types.py 189 4 98%
streamlit/elements/lib/dialog.py 67 1 99%
streamlit/elements/lib/dicttools.py 39 2 95%
streamlit/elements/lib/file_uploader_utils.py 30 0 100%
streamlit/elements/lib/form_utils.py 26 0 100%
streamlit/elements/lib/image_utils.py 176 21 88%
streamlit/elements/lib/js_number.py 28 3 89%
streamlit/elements/lib/layout_utils.py 109 1 99%
streamlit/elements/lib/mutable_status_container.py 73 4 95%
streamlit/elements/lib/options_selector_utils.py 90 0 100%
streamlit/elements/lib/pandas_styler_utils.py 80 2 98%
streamlit/elements/lib/policies.py 56 1 98%
streamlit/elements/lib/streamlit_plotly_theme.py 49 0 100%
streamlit/elements/lib/subtitle_utils.py 76 13 83%
streamlit/elements/lib/utils.py 76 5 93%
streamlit/elements/map.py 110 1 99%
streamlit/elements/markdown.py 63 2 97%
streamlit/elements/media.py 181 8 96%
streamlit/elements/metric.py 91 0 100%
streamlit/elements/pdf.py 49 2 96%
streamlit/elements/plotly_chart.py 114 4 96%
streamlit/elements/progress.py 36 0 100%
streamlit/elements/pyplot.py 39 2 95%
streamlit/elements/snow.py 10 0 100%
streamlit/elements/space.py 12 0 100%
streamlit/elements/spinner.py 34 0 100%
streamlit/elements/text.py 16 0 100%
streamlit/elements/toast.py 26 0 100%
streamlit/elements/vega_charts.py 226 3 99%
streamlit/elements/widgets/__init__.py 0 0 100%
streamlit/elements/widgets/audio_input.py 68 10 85%
streamlit/elements/widgets/button.py 214 3 99%
streamlit/elements/widgets/button_group.py 161 1 99%
streamlit/elements/widgets/camera_input.py 62 10 84%
streamlit/elements/widgets/chat.py 169 40 76%
streamlit/elements/widgets/checkbox.py 52 0 100%
streamlit/elements/widgets/color_picker.py 56 2 96%
streamlit/elements/widgets/data_editor.py 239 14 94%
streamlit/elements/widgets/file_uploader.py 103 18 83%
streamlit/elements/widgets/multiselect.py 105 4 96%
streamlit/elements/widgets/number_input.py 143 5 97%
streamlit/elements/widgets/radio.py 83 5 94%
streamlit/elements/widgets/select_slider.py 97 0 100%
streamlit/elements/widgets/selectbox.py 91 2 98%
streamlit/elements/widgets/slider.py 241 8 97%
streamlit/elements/widgets/text_widgets.py 130 6 95%
streamlit/elements/widgets/time_widgets.py 248 15 94%
streamlit/elements/write.py 166 30 82%
streamlit/emojis.py 4 0 100%
streamlit/env_util.py 21 3 86%
streamlit/error_util.py 33 2 94%
streamlit/errors.py 188 27 86%
streamlit/external/__init__.py 0 0 100%
streamlit/external/langchain/__init__.py 2 0 100%
streamlit/external/langchain/streamlit_callback_handler.py 141 82 42%
streamlit/file_util.py 84 8 90%
streamlit/git_util.py 100 5 95%
streamlit/logger.py 54 0 100%
streamlit/material_icon_names.py 1 0 100%
streamlit/navigation/__init__.py 0 0 100%
streamlit/navigation/page.py 78 2 97%
streamlit/net_util.py 55 3 95%
streamlit/platform.py 10 1 90%
streamlit/runtime/__init__.py 8 0 100%
streamlit/runtime/app_session.py 447 94 79%
streamlit/runtime/caching/__init__.py 19 0 100%
streamlit/runtime/caching/cache_data_api.py 164 3 98%
streamlit/runtime/caching/cache_errors.py 45 4 91%
streamlit/runtime/caching/cache_resource_api.py 122 0 100%
streamlit/runtime/caching/cache_type.py 11 1 91%
streamlit/runtime/caching/cache_utils.py 165 9 95%
streamlit/runtime/caching/cached_message_replay.py 108 1 99%
streamlit/runtime/caching/hashing.py 311 25 92%
streamlit/runtime/caching/legacy_cache_api.py 14 0 100%
streamlit/runtime/caching/storage/__init__.py 2 0 100%
streamlit/runtime/caching/storage/cache_storage_protocol.py 31 2 94%
streamlit/runtime/caching/storage/dummy_cache_storage.py 21 0 100%
streamlit/runtime/caching/storage/in_memory_cache_storage_wrapper.py 60 0 100%
streamlit/runtime/caching/storage/local_disk_cache_storage.py 86 4 95%
streamlit/runtime/connection_factory.py 85 9 89%
streamlit/runtime/context.py 140 0 100%
streamlit/runtime/context_util.py 18 0 100%
streamlit/runtime/credentials.py 139 4 97%
streamlit/runtime/forward_msg_cache.py 23 2 91%
streamlit/runtime/forward_msg_queue.py 63 4 94%
streamlit/runtime/fragment.py 112 2 98%
streamlit/runtime/media_file_manager.py 69 7 90%
streamlit/runtime/media_file_storage.py 15 0 100%
streamlit/runtime/memory_media_file_storage.py 68 0 100%
streamlit/runtime/memory_session_storage.py 15 0 100%
streamlit/runtime/memory_uploaded_file_manager.py 41 1 98%
streamlit/runtime/metrics_util.py 190 12 94%
streamlit/runtime/pages_manager.py 59 2 97%
streamlit/runtime/runtime.py 248 18 93%
streamlit/runtime/runtime_util.py 30 1 97%
streamlit/runtime/script_data.py 16 0 100%
streamlit/runtime/scriptrunner/__init__.py 5 0 100%
streamlit/runtime/scriptrunner/exec_code.py 49 5 90%
streamlit/runtime/scriptrunner/magic.py 83 1 99%
streamlit/runtime/scriptrunner/magic_funcs.py 10 1 90%
streamlit/runtime/scriptrunner/script_cache.py 27 0 100%
streamlit/runtime/scriptrunner/script_runner.py 230 27 88%
streamlit/runtime/scriptrunner_utils/__init__.py 0 0 100%
streamlit/runtime/scriptrunner_utils/exceptions.py 11 1 91%
streamlit/runtime/scriptrunner_utils/script_requests.py 106 5 95%
streamlit/runtime/scriptrunner_utils/script_run_context.py 135 2 99%
streamlit/runtime/secrets.py 242 25 90%
streamlit/runtime/session_manager.py 60 1 98%
streamlit/runtime/state/__init__.py 7 0 100%
streamlit/runtime/state/common.py 52 2 96%
streamlit/runtime/state/presentation.py 19 4 79%
streamlit/runtime/state/query_params.py 110 3 97%
streamlit/runtime/state/query_params_proxy.py 71 0 100%
streamlit/runtime/state/safe_session_state.py 77 11 86%
streamlit/runtime/state/session_state.py 433 31 93%
streamlit/runtime/state/session_state_proxy.py 62 8 87%
streamlit/runtime/state/widgets.py 15 1 93%
streamlit/runtime/stats.py 42 0 100%
streamlit/runtime/theme_util.py 46 1 98%
streamlit/runtime/uploaded_file_manager.py 39 3 92%
streamlit/runtime/websocket_session_manager.py 66 0 100%
streamlit/source_util.py 36 1 97%
streamlit/string_util.py 88 7 92%
streamlit/temporary_directory.py 18 1 94%
streamlit/testing/__init__.py 0 0 100%
streamlit/testing/v1/__init__.py 2 0 100%
streamlit/testing/v1/app_test.py 239 6 97%
streamlit/testing/v1/element_tree.py 1327 87 93%
streamlit/testing/v1/local_script_runner.py 71 2 97%
streamlit/testing/v1/util.py 17 0 100%
streamlit/time_util.py 28 1 96%
streamlit/type_util.py 138 12 91%
streamlit/url_util.py 39 5 87%
streamlit/user_info.py 87 8 91%
streamlit/util.py 38 1 97%
streamlit/version.py 3 0 100%
streamlit/watcher/__init__.py 3 0 100%
streamlit/watcher/event_based_path_watcher.py 181 24 87%
streamlit/watcher/folder_black_list.py 14 1 93%
streamlit/watcher/local_sources_watcher.py 127 9 93%
streamlit/watcher/path_watcher.py 43 3 93%
streamlit/watcher/polling_path_watcher.py 55 2 96%
streamlit/watcher/util.py 49 1 98%
streamlit/web/__init__.py 0 0 100%
streamlit/web/bootstrap.py 138 18 87%
streamlit/web/cache_storage_manager_config.py 5 0 100%
streamlit/web/cli.py 186 17 91%
streamlit/web/server/__init__.py 5 0 100%
streamlit/web/server/app_static_file_handler.py 29 3 90%
streamlit/web/server/authlib_tornado_integration.py 18 1 94%
streamlit/web/server/bidi_component_request_handler.py 65 8 88%
streamlit/web/server/browser_websocket_handler.py 115 31 73%
streamlit/web/server/component_file_utils.py 24 0 100%
streamlit/web/server/component_request_handler.py 55 4 93%
streamlit/web/server/media_file_handler.py 65 9 86%
streamlit/web/server/oauth_authlib_routes.py 118 18 85%
streamlit/web/server/oidc_mixin.py 44 0 100%
streamlit/web/server/routes.py 90 7 92%
streamlit/web/server/server.py 188 11 94%
streamlit/web/server/server_util.py 67 5 93%
streamlit/web/server/stats_request_handler.py 53 4 92%
streamlit/web/server/upload_file_request_handler.py 53 9 83%
streamlit/web/server/websocket_headers.py 19 1 95%
TOTAL 20020 1508 92%

📊 View detailed coverage comparison

@github-actions
Copy link
Copy Markdown
Contributor

github-actions bot commented Oct 3, 2025 •
edited
Loading

📈 Significant wheel size change detected

The wheel file size has increased by 0.28% (threshold: 0.25%)

  • Current PR: 9855.44 KB
  • Latest develop: 9827.70 KB

Please verify this change is expected.

@sfc-gh-bnisco sfc-gh-bnisco force-pushed the bnisco/ccv2-stack-14 branch 2 times, most recently from 7e186d5 to 83ae089 Compare October 7, 2025 20:39
@sfc-gh-bnisco sfc-gh-bnisco marked this pull request as ready for review October 7, 2025 21:06
@sfc-gh-bnisco sfc-gh-bnisco requested a review from a team as a October 24, 2025 03:23
@sfc-gh-bnisco sfc-gh-bnisco force-pushed the bnisco/ccv2-stack-14 branch 2 times, most recently from 712c420 to b325487 Compare October 24, 2025 14:24
@sfc-gh-bnisco sfc-gh-bnisco changed the base branch from bnisco/ccv2-stack-14 to graphite-base/12685 October 24, 2025 15:31
@graphite-app graphite-app bot changed the base branch from graphite-base/12685 to develop October 24, 2025 15:31
github-advanced-security[bot]
github-advanced-security bot found potential problems Oct 24, 2025
View reviewed changes
@sfc-gh-bnisco sfc-gh-bnisco merged commit 3770dfb into develop Oct 24, 2025
37 checks passed
@sfc-gh-bnisco sfc-gh-bnisco deleted the bnisco/ccv2-stack-3 branch October 24, 2025 16:14
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

@lukasmasuch lukasmasuch lukasmasuch left review comments

@graphite-app graphite-app[bot] graphite-app[bot] left review comments

Copilot code review Copilot Copilot left review comments

@sfc-gh-nbellante sfc-gh-nbellante sfc-gh-nbellante approved these changes

Assignees

No one assigned

Labels

change:feature PR contains new feature or enhancement implementation impact:internal PR changes only affect internal code

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

5 participants

@sfc-gh-bnisco @lukasmasuch @github-advanced-security @sfc-gh-nbellante