[feat] Add ComponentManager and wire it into the Runtime by sfc-gh-bnisco · Pull Request #12660 · streamlit/streamlit

sfc-gh-bnisco · 2025-09-29T16:46:10Z

Describe your changes

Adds a new BidiComponentManager class that centralizes component management for bidirectional components. This manager composes three key responsibilities:
1. Registry management via BidiComponentRegistry
2. Manifest handling via ComponentManifestHandler
3. File watching via ComponentFileWatcher
The point of the BidiComponentManager is that all actions go through the Manager, which is responsible for delegating to its composed classes as needed.
- This Manager is instantiated in the Runtime for access throughout the typical Streamlit runtime.
Adds a component definition resolver that centralizes the logic for interpreting js/css inputs as inline content vs path/glob strings, validating them against a component's asset directory, and producing a BidiComponentDefinition with correct asset-relative URLs for security.

Testing Plan

Unit Tests: Added comprehensive tests in test_component_manager_asset_dir.py and test_bidi_component_registry.py that verify:
- Asset directory resolution and preference
- Component registration from manifests
- File change handling and definition recomputation
- Registry update behavior
Updated existing tests in test_component_registry.py to reflect the new update mechanism

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 · 2025-09-29T16:46:21Z

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github-actions · 2025-09-29T16:46:30Z

✅ PR preview is ready!

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sfc-gh-bnisco · 2025-09-29T16:46:37Z

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github-actions · 2025-09-29T16:53:03Z

📉 Python coverage change detected

The Python unit test coverage has decreased by 0.1029%

Current PR: 92.8769% (19528 statements, 1391 missed)
Latest develop: 92.9798% (19387 statements, 1361 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/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/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	204	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	173	24	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	49	2	96%
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	360	13	96%
streamlit/runtime/state/session_state_proxy.py	62	8	87%
streamlit/runtime/state/widgets.py	12	1	92%
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/browser_websocket_handler.py	115	31	73%
streamlit/web/server/component_request_handler.py	64	6	91%
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	186	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	19528	1391	93%

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github-actions · 2025-09-29T16:53:38Z

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lib/streamlit/components/v2/get_bidi_component_manager.py

sfc-gh-bnisco added change:feature PR contains new feature or enhancement implementation security-assessment-completed labels Sep 29, 2025 — with Graphite App

sfc-gh-bnisco mentioned this pull request Sep 29, 2025

[feat] Add @streamlit/component-v2-lib package #12626

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sfc-gh-bnisco added the impact:internal PR changes only affect internal code label Sep 29, 2025 — with Graphite App

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[feat] Add protofiles for CCv2 #12627

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[feat] Add ComponentManifest infra #12637

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[feat] Add BidiComponentRegistry classes #12646

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[feat] Add ComponentFileWatcher #12647

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[feat] Add BidiComponentRequestHandler and wire it up to the Server #12662

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[feat] Add Presenter to Session State #12664

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[feat] Add ComponentManager and wire it into the Runtime

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[feat] Add ComponentManager and wire it into the Runtime#12660

[feat] Add ComponentManager and wire it into the Runtime#12660
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