Summary:
New shortcuts for removing and adding rows.
For adding a row we now have Mod+(Shift)+Enter
For removing rows we now have Mod+Delete/Mod+Backspace
Before removing rows, the user is prompted to confirm, this prompt
can be dismissed and this setting can be remembered. User needs
to confirm only when using shortcut.
Old shortcuts are still active and shows information about this change.
This information is shown only once, after this shortcuts have default
behavior (zooming).
New users don't see this explanation.
Test Plan: Updated
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3655
Summary:
Editing data selection would sometimes cause columns to be hidden in the updated view. A
missing conditional was the culprit: generally, field visibility shouldn't be modified after the view is
updated, but we make an exception for charts to keep certain fields visible or hidden between
updates, so that chart configuration doesn't change too significantly and cause unexpected
data to be displayed. This special behavior for charts was erroneously being applied to non-charts
as well.
Also, when no columns were visible in a view, opening the row menu would cause an error to be
thrown. A loop was inadvertently using null control variables - an explicit check for non-null loop
variables was added, which skips the loop when no columns are visible.
Test Plan: Browser tests.
Reviewers: jarek
Reviewed By: jarek
Subscribers: jarek
Differential Revision: https://phab.getgrist.com/D3650
Summary:
First iteration for comments system for Grist.
- Comments are stored in a generic metatable `_grist_Cells`
- Each comment is connected to a particular cell (hence the generic name of the table)
- Access level works naturally for records stored in this table
-- User can add/read comments for cells he can see
-- User can't update/remove comments that he doesn't own, but he can delete them by removing cells (rows/columns)
-- Anonymous users can't see comments at all.
- Each comment can have replies (but replies can't have more replies)
Comments are hidden by default, they can be enabled by COMMENTS=true env variable.
Some things for follow-up
- Avatars, currently the user's profile image is not shown or retrieved from the server
- Virtual rendering for comments list in creator panel. Currently, there is a limit of 200 comments.
Test Plan: New and existing tests
Reviewers: georgegevoian, paulfitz
Reviewed By: georgegevoian
Subscribers: paulfitz
Differential Revision: https://phab.getgrist.com/D3509
Summary:
Adds a cell selection summary to grid view that shows either a count or
sum of all the selected values. Implementation was done by Dmitry.
Test Plan: Browser tests.
Reviewers: jarek
Reviewed By: jarek
Subscribers: paulfitz, dsagal, jarek
Differential Revision: https://phab.getgrist.com/D3630
XLSX export of active view / table
Co-authored-by: Louis Delbosc <louis.delbosc.prestataire@anct.gouv.fr>
Co-authored-by: Vincent Viers <vincent.viers@beta.gouv.fr>
Summary:
Show raw data will now open a popup with
raw section instead of redirecting to raw data page.
Adding new anchor link type "a2" that is able to open
any section in a popup on a current view.
Not related:
Fixing highlightMatches function, after merging core PR.
Test Plan: Updated tests
Reviewers: alexmojaki, georgegevoian
Reviewed By: alexmojaki, georgegevoian
Subscribers: georgegevoian, alexmojaki
Differential Revision: https://phab.getgrist.com/D3592
Summary:
When adding a summary table widget to a page and using 'select by' in the add widget config (as opposed to in the right panel for an existing widget):
1. If an equivalent summary table already exists, use its referencing columns (if any) to construct link nodes. Previously the source table columns were being used instead, which could include referencing columns that don't have any equivalent in the summary table, and exclude referencing columns in the summary table.
2. If no such summary table exists yet, then keep using the source table columns, but only the selected groupby columns, and
3. After the summary table is created, correct the `linkTargetColRef` (which points to a source table column) to the corresponding column from the new summary table instead.
This fixes bugs which only appeared recently since 'select by' for a summary table previously involved no target columns.
Test Plan: Added two new tests to `nbrowser/SelectBySummaryRef`, and confirmed that they fail without the fixes to all three points above.
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D3527
Summary:
Summary tables now have their own raw viewsection, and are shown
under Raw Data Tables on the Raw Data page.
Test Plan: Browser and Python tests.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3495
Summary:
Building:
- Builds no longer wait for tsc for either client, server, or test targets. All use esbuild which is very fast.
- Build still runs tsc, but only to report errors. This may be turned off with `SKIP_TSC=1` env var.
- Grist-core continues to build using tsc.
- Esbuild requires ES6 module semantics. Typescript's esModuleInterop is turned
on, so that tsc accepts and enforces correct usage.
- Client-side code is watched and bundled by webpack as before (using esbuild-loader)
Code changes:
- Imports must now follow ES6 semantics: `import * as X from ...` produces a
module object; to import functions or class instances, use `import X from ...`.
- Everything is now built with isolatedModules flag. Some exports were updated for it.
Packages:
- Upgraded browserify dependency, and related packages (used for the distribution-building step).
- Building the distribution now uses esbuild's minification. babel-minify is no longer used.
Test Plan: Should have no behavior changes, existing tests should pass, and docker image should build too.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Subscribers: alexmojaki
Differential Revision: https://phab.getgrist.com/D3506
Summary:
Adds some special handling to summary table and lookup logic:
- Source rows with empty choicelists/reflists get a corresponding summary row with an empty string/reference when grouping by that column, instead of excluding them from any group
- Adds a new `QueryOperation` 'empty' in the client which is used in `LinkingState`, `QuerySet`, and `recursiveMoveToCursorPos` to match empty lists in source tables against falsy values in linked summary tables.
- Adds a new parameter `match_empty` to the Python `CONTAINS` function so that regular formulas can implement the same behaviour as summary tables. See https://grist.slack.com/archives/C0234CPPXPA/p1654030490932119
- Uses the new `match_empty` argument in the formula generated for the `group` column when detaching a summary table.
Test Plan: Updated and extended Python and nbrowser tests of summary tables grouped by choicelists to test for new behaviour with empty lists.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3471
Summary:
- Add app/common/CommTypes.ts to define types shared by client and server.
- Include @types/ws npm package
Test Plan: Intended to have no changes in behavior
Reviewers: paulfitz
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D3467
Summary:
Introduces a new message type, docUsage, that's broadcast to all connected
clients whenever document usage is updated in ActiveDoc.
Test Plan: Browser tests.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3451
Summary:
The summary includes a count of documents that are approaching
limits, in grace period, or delete-only. The endpoint is only accessible
to site owners, and is currently unused. A follow-up diff will add usage
banners to the site home page, which will use the response from the
endpoint to communicate usage information to owners.
Test Plan: Browser and server tests.
Reviewers: alexmojaki
Reviewed By: alexmojaki
Differential Revision: https://phab.getgrist.com/D3420
Summary:
Diff fixes couple edge cases:
- When changing chart's groupby columns, the data-engine changes the view fields, which is not okay with charts, hence makes sure view fields stay the same as much as possible using `this.setSectionViewFieldsFromArray()`
- Also there's a logic in `this.setSectionViewFieldsFromArray()` that handle what to do when some columns goes missing during updates. Diff fixes this logic two. This is really corner case.
Test Plan: Both cases are not added to ChartAggregate.ts
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3405
Summary:
Adds attachment and data size to the usage section of
the raw data page. Also makes in-document usage banners
update as user actions are applied, causing them to be
hidden/shown or updated based on the current state of
the document.
Test Plan: Browser tests.
Reviewers: jarek
Reviewed By: jarek
Subscribers: alexmojaki
Differential Revision: https://phab.getgrist.com/D3395
Summary:
- Better focus on the widget title
- Adding columns only to the current view section
- New popup with options when user wants to delete a page
- New dialog to enter table name
- New table as a widget doesn't create a separate page
- Removing a table doesn't remove the primary view
Test Plan: Updated and new tests
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3410
Summary:
A new way for renaming tables.
- There is a new popup to rename section (where you can also rename the table)
- Renaming/Deleting page doesn't modify/delete the table.
- Renaming table can rename a page if the names match (and the page contains a section with that table).
- User can rename table in Raw Data UI in two ways - either on the listing or by using the section name popup
- As before, there is no way to change tableId - it is derived from a table name.
- When the section name is empty the table name is shown instead.
- White space for section name is allowed (to discuss) - so the user can just paste ' '.
- Empty name for a page is not allowed (but white space is).
- Some bugs related to deleting tables with attached summary tables (and with undoing this operation) were fixed (but not all of them yet).
Test Plan: Updated tests.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Subscribers: georgegevoian
Differential Revision: https://phab.getgrist.com/D3360
Summary:
- adds the `aggregate values` option to chart config
- aggregation is performed by turning table into summary table
- change columns options of xaxis and split series selectors to be the source table columns when `aggregate values` is on
- change xAxis and split series computed to hold colId instead of column id
- change GristDoc saveViewSection routine to preserve old sections viewFields and options
- Rename `Group data` into `split series`
quip doc: https://grist.quip.com/tAsCAuv8RiMa/Charts-data-aggregation#temp:C:QcK0ce13e1e8ae64048988f44f9c
Test Plan: Adds ChartAggregate.ts nbrowser test.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3336
Summary:
Currently, usage is only shown for free team sites, and only
for total number of rows used in a document. Future diffs will
include other usage metrics and browser tests.
Test Plan: Planned for future diffs; UI is still under development.
Reviewers: jarek
Reviewed By: jarek
Subscribers: alexmojaki
Differential Revision: https://phab.getgrist.com/D3343
Summary:
Builds upon https://phab.getgrist.com/D3328
- Add HomeDB column `Document.gracePeriodStart`
- When the row count moves above the limit, set it to the current date. When it moves below, set it to null.
- Add DataLimitStatus type indicating if the document is approaching the limit, is in a grace period, or is in delete only mode if the grace period started at least 14 days ago. Compute it in ActiveDoc and send it to client when opening.
- Only allow certain user actions when in delete-only mode.
Follow-up tasks related to this diff:
- When DataLimitStatus in the client is non-empty, show a banner to the appropriate users.
- Only send DataLimitStatus to users with the appropriate access. There's no risk landing this now since real users will only see null until free team sites are released.
- Update DataLimitStatus immediately in the client when it changes, e.g. when user actions are applied or the product is changed. Right now it's only sent when the document loads.
- Update row limit, grace period start, and data limit status in ActiveDoc when the product changes, i.e. the user upgrades/downgrades.
- Account for data size when computing data limit status, not just row counts.
See also the tasks mentioned in https://phab.getgrist.com/D3331
Test Plan: Extended FreeTeam nbrowser test, testing the 4 statuses.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3331
Summary:
Clicking undo/redo after converting a table to a summary table navigated
to the raw data view.
Test Plan: new test
Reviewers: georgegevoian, alexmojaki
Reviewed By: georgegevoian, alexmojaki
Subscribers: alexmojaki
Differential Revision: https://phab.getgrist.com/D3337
Summary:
This diff introduces cursor features for raw data views:
- Restoring cursor position when the browser window is reloaded
- Restoring the last edit position when the browser window is reloaded
Test Plan: Added tests
Reviewers: alexmojaki
Reviewed By: alexmojaki
Subscribers: jarek
Differential Revision: https://phab.getgrist.com/D3314
Summary:
- Unify where in the code tours get initiated.
- Avoid start a new tour while one is being started or is in progress.
- Ignore welcome tour when on a doc that has a doc tour.
- Fix tours when starting with a special page like Access Rules.
- Remove mention of the no-longer-present "Give Feedback" button in the last
message of the welcome tour.
Test Plan:
Add a browser test case that docTour preempts the welcome tour and shows no errors
(this test case fails in multiple ways without the changes).
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3330
Summary:
Add rowCount returned from sandbox when applying user actions to ActionGroup which is broadcast to clients.
Add rowCount to ActiveDoc and update it after applying user actions.
Add rowCount to OpenLocalDocResult using ActiveDoc value, to show when a client opens a doc before any user actions happen.
Add rowCount observable to DocPageModel which is set when the doc is opened and when action groups are received.
Add crude UI (commented out) in Tool.ts showing the row count and the limit in AppModel.currentFeatures. The actual UI doesn't have a place to go yet.
Followup tasks:
- Real, pretty UI
- Counts per table
- Keep count(s) secret from users with limited access?
- Data size indicator?
- Banner when close to or above limit
- Measure row counts outside of sandbox to avoid spoofing with formula
- Handle changes to the limit when the plan is changed or extra rows are purchased
Test Plan: Tested UI manually, including with free team site, opening a fresh doc, opening an initialised doc, adding rows, undoing, and changes from another tab. Automated tests seem like they should wait for a proper UI.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3318
Summary:
Creating new UI for raw data views based on design.
- Renaming left for follow up diff
- Link in the menu is hidden for now
To access raw UI, use /p/data URL.
Test Plan: new tests
Reviewers: georgegevoian
Reviewed By: georgegevoian
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D3306
Summary: Check that view exists first, otherwise fall back to default
Test Plan: Manual
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3260
Summary:
- Added a new special page for viewing raw data widgets:
- Implemented in DataTables.ts
- Accessible only via the special URL path `/p/data`
- Future diffs should make this page prettier and easily accessible
- Shows a list of user tables
- Clicking on a table name shows its `rawViewSection` by setting `GristDoc.viewModel.activeSectionId`. Note that in this case `GristDoc.viewModel` is an empty record, so this is a bit of a hack, but it works well and causes no known issues.
- Added `ViewSectionRec.isRaw` to know if the record represents a raw data widget.
- Added various restrictions in the UI for raw data widgets:
- 'Delete widget' is disabled in the 3-dot widget menu.
- Prevent hiding columns:
- "Hide column" in the column context menu is disabled
- The "VISIBLE/HIDDEN COLUMNS" section of the right panel > Table > Widget is hidden
- The toggle bar isn't configurable to ensure that users know when raw data is filtered:
- The filter bar always shows if and only if some filters are present
- "Toggle Filter Bar" is hidden in:
- Right panel > Table > Sort & Filter
- The sort/filter menu next to the three-dot menu for widgets.
- Other restrictions in the right panel:
- In the Column tab:
- 'Use separate settings' is disabled
- In the Table tab:
- In the Widget subtab:
- 'Change Widget' is hidden
- In the Data subtab:
- 'Edit Data Selection' is hidden
- 'SELECT BY' is hidden
Test Plan: Tested manually. The behaviour of raw data widgets may still change and they aren't easily visible to users yet.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3248
Summary: The value seems unused
Test Plan: This is me testing if it's actually unused
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D3244
Summary:
The routine that makes sure that new charts are created with at least
one non-numeric series did not handle correctly when the table has one
single column.
This diff fixes it.
Test Plan: Adds test case to ChartView3.ts
Reviewers: alexmojaki
Reviewed By: alexmojaki
Subscribers: alexmojaki, jarek
Differential Revision: https://phab.getgrist.com/D3224
Summary:
We do not support to show non numeric column as chart series.
However we didn't prevent the user from doing it and it could cause unexpected behaviour such as a missing chart.
This diff addresses that issue by doing two following thing:
1) it prevents user from adding non numeric column as series and
2) it makes sure that if there is a non numeric series it does not mess up the chart (it still can happen that a non numeric series ends up in charts even with 1) for instance if users convert a series' column to a non numeric column for instance).
Links to UI discussion:
- https://grist.quip.com/wb4gAgrQM2aP#TZEADAKPs8n
- https://grist.quip.com/wb4gAgrQM2aP#TZEADAP8S8N
Test Plan:
- new behaviour covered in nbrowser/ChartView3.ts
- Some test were using non-numeric column as series, diff fixes that to.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3206
Summary:
Document owners can now remove doc tours by pressing the button located
to the right of 'Tour of this Document' in the left panel.
Test Plan: Browser test.
Reviewers: jarek
Reviewed By: jarek
Subscribers: jarek
Differential Revision: https://phab.getgrist.com/D3202
Summary:
Add more method overrides to MetaTableData for extra type safety.
Use MetaTableData, MetaRowRecord, and getMetaTable in more places.
Test Plan: Mostly it just has to compile. Tested manually that types are being checked more strictly now, e.g. by adding a typo to property names. Some type casting has also been removed.
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D3168
Summary:
Fixing js error that happens when closing creator panel with active formula editor.
Styling behavior menu with common styles.
Test Plan: Browser tests
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D3150
Summary:
Existing filters are now moved out of fields
and into a new metadata table for filters, and the
client is updated to retrieve/update/save filters from
the new table. This enables storing of filters for
columns that don't have fields (notably, hidden columns).
Test Plan: Browser and server tests.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3138
Summary:
Redesigning column type section to make it more user-friendly. Introducing column behavior concept.
Column can be either:
- Empty Formula Column: initial state (user can convert to Formula/Data Column)
- Data Column: non formula column with or without trigger (with option to add trigger, or convert to formula)
- Formula Column: pure formula column, with an option to convert to data column with a trigger.
Test Plan: Existing tests.
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D3092
Summary:
With this diff, when a user opens a Grist document in a browser, they will be able to view its contents without waiting for the data engine to start up. Once the data engine starts, it will run a calculation and send any updates made. Changes to the document will be blocked until the engine is started and the initial calculation is complete.
The increase in responsiveness is useful in its own right, and also reduces the impact of an extra startup time in a candidate next-generation sandbox.
A small unrelated fix is included for `core/package.json`, to catch up with a recent change to `package.json`.
A small `./build schema` convenience is added to just rebuild the typescript schema file.
Test Plan: added test; existing tests pass - small fixes needed in some cases because of new timing
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D3036
Summary:
This removes the need for any information drawn from the content of recent actions when loading a document.
The undo/redo system does need some facts about recent actions up front. But that system has an important restriction: only actions a particular client is known to have generated can be undone by that client.
So in this diff, as we store which client has performed an action, we also store the few pieces of metadata about that action that the undo/redo system needs: `linkId`, `otherId`, `rowIdHint`, `isUndo` fields. These are all small integers (or in one case a boolean).
An existing limitation is that information about which client has performed which action is stored in memory in the worker, and not persisted anywhere. This diff does not change that limitation, meaning that undos continue to not survive a worker transition. A reasonable way to deal with that would be to back the store with redis.
Test Plan: existing tests pass
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D3044
Summary: Constructs a ClientQuery in a similar way to LinkingState to handle lists.
Test Plan: Extended SelectBySummary and SelectByRefList tests.
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: paulfitz
Differential Revision: https://phab.getgrist.com/D3030
Summary:
The import dialog now has an option to 'Update existing records',
which when checked will allow for selection of 1 or more fields
to match source and destination tables on.
If all fields match, then the matched record in the
destination table will be merged with the incoming record
from the source table. This means the incoming values will
replace the destination table values, unless the incoming
values are blank.
Additional merge strategies are implemented in the data
engine, but the import dialog only uses one of the
strategies currently. The others can be exposed in the UI
in the future, and tweak the behavior of how source
and destination values should be merged in different contexts,
such as when blank values exist.
Test Plan: Python and browser tests.
Reviewers: paulfitz
Reviewed By: paulfitz
Subscribers: alexmojaki
Differential Revision: https://phab.getgrist.com/D3020
Summary:
Moves CSV and XLSX export urls under /download/, and
removes the document title query parameter which is now
retrieved from the backend.
Test Plan: No new tests. Existing tests that verify endpoints still function.
Reviewers: paulfitz
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D3010
Summary:
The endpoints for exporting CSV and Excel are now under
/api/docs/:docId/ and are forwarded to a doc worker for export.
The Share Menu has been updated to use the new endpoints.
Test Plan: No new tests. Existing tests that verify endpoints work correctly.
Reviewers: paulfitz
Reviewed By: paulfitz
Subscribers: paulfitz
Differential Revision: https://phab.getgrist.com/D3007
Summary:
- Filters out hidden pages from docModel.allPagesList (used for knowing default page, and for search iteration).
- Filters out hidden pages from TreeModel (uses raw tableData, so has a different way to filter).
Test Plan: WIP
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D2996
Summary:
- Grist document has a associated "locale" setting that affects how currency is formatted.
- Currency selector for number format.
Test Plan: not done
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: paulfitz
Differential Revision: https://phab.getgrist.com/D2977
Summary: Importing from google drive from home screen (also for anonymous users)
Test Plan: Browser tests
Reviewers: dsagal, paulfitz
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2943
Summary:
When importing from url, user types a url for google spreadsheet,
Grist will switch to Google Drive plugin to allow user to choose file manualy.
Test Plan: Browser tests
Reviewers: paulfitz, dsagal
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D2945
Summary:
- Add showGristTour preference, and trigger tour automatically.
- Tour is only triggered for new and anonymous users on a personal org, with
edit permission.
- Automatically open the right panel at tour start.
- Don't show tours on mobile, since that's not ready (popups are cut off
and can't be dismissed)
- Cancel previous tour if a new one is somehow started.
- Remove #repeat- trigger hash tags from the URL when the tour starts.
- Ensure Help Center popup is positioned even when left panel is collapsed.
- Polish up the content of the last two cards in the tour.
Test Plan: Added test case for triggering and opening right panel.
Reviewers: alexmojaki, paulfitz
Reviewed By: alexmojaki
Differential Revision: https://phab.getgrist.com/D2955
Summary:
Adds 'GristDocTour' as a possible value of urlState().docPage
GristDoc checks for this and converts it to a normal view record ID
It also then sets a flag showGristDocTour=true which tells Pages.ts to show the page in the sidebar
Otherwise the page is 'hidden' in the sidebar in the same way it would be if blocked by ACL rules
This all feels very hacky, but I don't know this code well enough to know if there's a better way. Hopefully this behaviour is temporary.
Test Plan: Tested manually, not sure if this is worth an automated test at this stage
Reviewers: paulfitz, dsagal
Reviewed By: paulfitz, dsagal
Subscribers: dsagal
Differential Revision: https://phab.getgrist.com/D2953
Summary:
Extracts code from showExampleCard into a generic function which is reused for document tours.
It handles reading and writing to user preferences for automatic showing and explicitly reopening.
Test Plan:
Manually tested that it automatically shows a tour just once and clicking to reopen works.
There's not much new functionality so there's little that needs testing. This is an initial version that's mostly internal and is likely to be polished for users in the future.
If I should still add tests, I'd like confirmation that the current behaviour is as desired.
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2944
