wave

• Added
  • Persona component.
  • Add support for streaming/multipart endpoints.
  • Read command line args from env if available.
  • Allow public/private directories to be hosted by the Wave daemon.
  • Side panel component.
  • Custom inline / external CSS support.
  • Allow controlling width of form items.
  • Icon button component.
  • Allow submitting text phrases within markdown.
  • Allow using markdown / HTML within message bar.
  • Add inline prop to checklist component.
  • Add trigger attribute for spinbox component.
  • OIDC: Update default scopes and add -oidc-scopes command line argument.
• Changed
  • Sort table group titles by default when grouped.
  • Range slider replaced with native Fluent component.
  • Report HTTP error 413 instead of 500 if request is too large.
  • Disable async function validation (failed under Cython).
• Fixed
  • Submit range slider values on releasing mouse.
  • Datepicker color contrast for date selection.
  • Unify ui.picker label with th rest of the form components, add 'required' prop to picker.
  • Expander ignoring expanded attr on initial render.
  • Prevent floating-point precision display in spinbox.
  • Redirect only once, not on every render.
  • Stretch slider for available space within ui.inline and ui.section.
  • Update form items client side if possible instead of recreate on data change.
  • Meta redirect for Firefox.
  • Set location hash when script events are triggered.
  • Download files in new tab to prevent FF dropping WS connection.
  • Increase tab card min height to prevent overflow.
  • Safari title overflow in grey dashboard.
  • Ensure that first column in tables functions properly when non-text.

• Added
  • The location hash (q.args['#']) is now always available, regardless of whether it has changed.
  • @on() annotations now support handling events.
  • @on() handlers can now have 0-n formal parameters, and are supplied arguments accordingly.
  • ui.inline_script() can use CSS selectors (e.g. #foo, .foo, table > td.foo) as targets

• Added
  • New Ability to load and execute third party Javascript libraries at runtime.
  • WaveDB: Add -benchmark command line flag for running benchmarks.
  • WaveDB: Add example for database-backed to-do list app.
  • WaveML: Add several examples demonstrating configuring, building, saving models, including hyperparameter tuning and SHAP.
• Changed
  • Upgrade Cypress (test framework) to 7.2.0.
  • Make (anon) subject ID and username available in development mode.
  • Closable dialogs now emit a dismissed event when closed.
• Fixed
  • WaveDB: Return empty array instead of None if resultset is empty.

• Added
  • New: WaveDB: a companion database to Wave apps, based on SQLite 3.
  • More routing power: Match multiple routing conditions using @on predicates.
  • New card: ui.wide_info_card().
  • New component: ui.image(), similar in behavior to the image card.
• Changed
  • The Wave Tour now uses a responsive layout.
  • Display underlying error in the file upload component on failures.
  • Set a default label for the upload button in the file upload component.
• Fixed
  • Submit toolbar command value when clicked, if available.
  • Make Wave Tour work when server and tour are launched on separate machines / docker containers.
  • Fix Card/component deserialization (Card.load()).
  • Use latest static assets in front-end when the server is upgraded.

• Fixed
  • Allow file uploads if auth is disabled (assume development mode).

• Added
  • New: The Wave server now provides command line utilities for managing access key/secret pairs (see Security docs).
  • Python app servers only process requests originating from the Wave server.
  • Add -max-request-size to control maximum allowed HTTP request size.
  • Add -max-cache-request-size to control maximum allowed cache request size.
  • Add -max-proxy-request-size to control maximum allowed proxy request size.
  • Add -max-proxy-response-size to control maximum allowed proxy response size.
  • Add tutorial on local development using OIDC / Keycloak.
  • Allow skipping OIDC login if required when -oidc-skip-login is set.
  • Add version/author dunders to Python module.
  • Set id_token_hint for OIDC using Okta during logout.
• Changed
  • Buttons are not special-cased / displayed in a dialog's footer anymore.
  • Don't automatically zoom into plots on mouse scroll.
  • The default (development-time) user name/subject are now anonymous/anonymous.
  • Login/logout endpoints are now _auth/login and _auth/logout instead of _login and _logout.
  • File uploads from UI are disabled if auth is not enabled.
  • Proxy is enabled only if -proxy is set.
  • IDE (experimental/in-progress) is enabled only if -ide is set.
  • Browser-browser communication is enabled only if -editable (experimental) is set.
  • All open browser tabs redirect to login when a user logs out of any tab.
  • Wave docs are now hosted at https://wave.h2o.ai/
• Fixed
  • All known security issues fixed/closed.
  • Display overflow menu in table footer only when space-constrained.
  • Trigger plot events only if marks are selected.
  • Submit a toolbar command's value instead of True, if available.
  • Refresh OIDC access token during WS communication if expired.
  • Use unique OIDC subject ID instead of preferred-username for sync'ing UIs.

• Added
  • New: Start the server with -editable to allow visitors to edit pages - turns the Wave server into a realtime collaborative wiki.
  • New: Add a whiteboard (ui.canvas_card()) to a page to enable collaborative drawing between the page's visitors.
  • New: Add a chat room (ui.chat_card()) to a page to enable discussions between the page's visitors.
  • Checkpointing: Save and restore application and session state on restart.
• Changed
  • Display Wave logo on empty pages instead of spinner.
  • Reduce size of h2o_wave wheel file.
• Fixed
  • Display scrollbars if content overflows in flex layout.
  • Fix flex layout viz rendering issues in Safari.
  • Fix form layout issues in Safari.
  • Improve tab_card example.
  • Improve visual design of footer in uitable.
  • Invalidate page when layouts or a card's box is changed.
  • Make stats cards not overflow 1-unit high zones.
  • Prevent iframes from overlapping other elements in forms.
  • Remove hard-coded "main" default zone in flex layouts

• Fixed
  • Fix ui.frame() overlapping other components inside a form card.
  • Fix form card component layout issues in Safari.
  • Improve layout of stats cards when 1-unit high.

• Added
  • Add on and handle_on APIs for query-handling and routing.
  • Add support for usage tracking via Google Analytics.
  • Use H2O_WAVE_APP_MODE environment variable to determine app sync behavior (as an alternative to @app(mode=...)).
  • Add experimental support for switching theme to a dark-mode "neon" theme.
• Changed
  • Stricter type validation for ui.* API parameters.
  • Stricter validation for non-empty strings when required (name of components, etc.)
• Fixed
  • Center breadcrumbs vertically in alloted space.
  • Fix breakages in Cypress test runner.
  • Fix ui.frame() sizing in Safari.
  • Fix rendering in Safari for cards that display circular progress bars.
  • Allow special characters in column names while using template strings for ui.plot()

• Added
  • Make all cards render responsively in both grid and flex layouts.
  • Add demo application that showcases various dashboards using flexible/responsive layouts.
  • Add ui.stats() and ui.stat() for displaying metrics inline in forms.
  • Add ui.section_card() to demarcate sections on a page, with optional nested components.
  • Add ui.stat_list_card() to display lists of metrics, with optional icons and links.
  • Add ui.stat_table_card() to display tables of metrics, with optional icons and links.
  • Add ui.inline() to nest and display components horizontally inside a form.
  • Add ui.footer_card() to display footers at the bottom of pages.
  • Allow form cards to have titles.
  • Allow disabling nav items.
  • Add support for color variable in plot color ranges.
  • Add support for color variable in plot shape/text fills and strokes.
  • Allow tabs inside forms to trigger hash change navigation.
  • Allow a tab card's selected tab to be accessed using the card's name.
  • Publish h2o-wave package to Conda.
  • Example for displaying background task completion using a progress bar.
  • Example for displaying Pandas frames as markdown tables.
  • Example for plotting Pandas frames.
  • OIDC refresh token is now accessible in the Python client.
  • Make documentation searchable.
  • Add table of contents for all Wave examples.
  • Add tags to all examples; show tag on an index page.
• Changed
  • Stats cards now dynamically resize to fit card size.
  • Picker now displays suggestion list in advance.
  • Center breadcrumbs vertically in flex layouts.
  • Plot cards now dynamically resize to fit.
  • Improve markdown rendering consistency across components.
  • Center tabs vertically when used in flex layouts.
  • Display tab cards without a background/padding.
  • Display toolbar cards without a background/padding.
  • Vega cards now dynamically resize to fit.
  • Improve spacing between components contained in an expander.
• Fixed
  • Fix Wave tour on Windows.
  • Fix responsive layout in Safari.
  • Fix bug where --no-reload of apps was using incorrect port.
  • Fix client-side warnings when using components nested recursively.
  • Close dialogs properly when the top X button is clicked.

• Added
  • Add support for responsive layouts.
  • Add support for modal dialogs.
  • Add ability to handle events from UI (q.events).
  • Allow handling mark selection events on plots.
  • Allow apps to handle server startup/shutdown events via on_startup and on_shutdown hooks.
  • Allow color picker to submit values immediately when changed (trigger attribute).
  • Allow collapsing nav items during initialization.
  • Handle display and sorting of numeric and time valued columns in ui.table().
  • Allow links/link-buttons to open links in new windows/tabs.
  • API now ships with enums for functions expecting predefined constants as parameters.
  • Read OIDC flags from env vars when available.
  • Automatically refresh OAuth2 access token in the background if expired.
  • Allow accessing OIDC access tokens in Python client.
  • Allow icons on navigation items.
  • Automatically transpose columns to rows in data() if not packed.
  • Allow adjust multiline textbox height.
  • Allow picker to submit values immediately when changed (trigger attribute).
  • Treat wave run foo/bar/baz.py as wave run foo.bar.baz.
  • Allow selecting nav links during initialization.
• Changed
  • Cards display a "raised" effect on mouse over; Header, tab, toolbar and navbar have alternate styles.
  • Display loading spinner automatically when a request is in flight.
  • Mark ui.command(data=...) as deprecated (use ui.command(value=...) instead, similar to ui.button(...).)
  • Remove redundant ui.* API for discriminated unions (ui.component(), etc.),
  • Add column headers to CSVs downloaded from ui.table(); remove row names.
  • Change default Wave server port from 55555 to 10101 (55555 is special on OSX Big Sur).
  • Center image in image card and preserve aspect ratio.
• Fixed
  • Improve ability of ui.frame() and ui.frame_card() to handle large HTML content.
  • Fix tour on Windows.
  • Use ellipsis on long column labels in ui.table()

Changed

• Product icons.

• Fixed
  • Make wave run behave identical to python -m h2o_wave run.

• Added
  • ASGI compatibility: Wave apps can now be run using an ASGI server.
  • @app decorator to identify primary query handler in an app.
  • Live-reload for apps.
  • New wave CLI and wave run command.
  • q.run() and q.exec() APIs for running background tasks.
  • Display server version/build at startup.
  • AsyncSite for updating other pages from an app without blocking the main thread.
  • Drop or clear pages from a site using del site[route].
• Changed
  • All HTTP calls now use non-blocking asyncio using the httpx library.
  • listen() is deprecated.
  • H2O_WAVE_INTERNAL_ADDRESS and H2O_WAVE_EXTERNAL_ADDRESS are deprecated.
  • An app's UI is now cleared when an app crashes or is terminated.
  • All examples migrated to use @app instead of listen().
  • Server binary renamed to waved (as in wave daemon).
  • Apps using @app must be run using wave run.
• Fixed
  • Performance and concurrency improvements across the board.
  • Stability improvements to the Wave Tour.

• Fixed
  • Enable visible properly on text_* components.
  • Fix checkbox value unchecking.
  • Improve stepper component layout.

• Added
  • Escape Cypress test functions using leading underscore _ if they overlap with Python reserved keywords.
  • Add data-test attribute to all form components for browser testing.
  • Add trigger property to the date picker component.
  • Allow pre-selecting rows in the table component.
  • Add visible property to all components to show/hide them on demand.
  • Add support for OpenID Connect (OIDC).
  • Add documentation on security.
• Fixed
  • Default HTML page title set to Wave.
  • Make % heights work properly for frames inside forms

• Added
  • Hash navigation using context menus.
  • Allow handling location hash when an open app page is reloaded.
  • Allow pre-selecting a tab in a tab_card.
  • Allow setting a height on the file upload component.
  • Allow justifying buttons left/center/right/spread.
  • Add data-test attribute to all cards for browser testing.
  • New documentation website, gallery, guides and tutorials.
• Changed
  • Fit table height to content height whenever possible.
  • Improve spacing between form components.
  • data-test attribute is set based on the names of cards.
• Fixed
  • Quote CSV data properly while downloading a table component's data.
  • Don't auto-hide axis labels in plots when data is missing.
  • Display labels instead of names when a pickers initial values are set.
  • Handle numeric column sorting in the table component.
  • Handle icon column sorting in the table component

• Added
  • Apps when launched now automatically use an available free port instead of 55556.
  • Client-side redirects to URLs and hashes using meta_card.redirect.
  • Context menus inside forms: ui.text_xl() and ui.text_l() now support optional context menus.
  • Plots now support specifying data values for predictable color encoding and legends.
  • ui.markup component for rendering HTML inline in forms.
  • ui.template component for rendering templated HTML inline in forms.
  • The height of tables can now be controlled using the height attribute.
  • Both sorting and group-by now work on the same table column if specified.
  • Lots of examples on how to use ui.table sorting, grouping, search, download, etc.
  • Ability to specify which column in a ui.table is the primary column, or disable altogether.
• Changed
  • ui.text() now unconditionally allows embedded HTML tags.
  • App host now defaults to 127.0.0.1 instead of localhost.
  • Footer display in ui.table is now inferred from usage and displayed automatically.
  • The min_width and max_width attributes for table columns are now strings (consistency).
• Fixed
  • Background color rendering bug when page overflows after loading.
  • Render tooltip properly on toolbar command buttons.
  • ui.table() rendering bug: remove stray 0.
  • Python error stack trace, if any, is displayed on top of all other cards on page

• Added
  • Example for controlling cards with tabs.
  • Cypress test runner for CI.
  • Search, sort, filter, group-by, export and custom cell types for table component.
• Changed
  • Remove semantic validation for stepper component.
• Fixed
  • Value synchronization bug in textbox component