feat: Picker table support#382
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Initial table support for Picker
- key and value column support
- Scroll to selected item when popover opens
- Viewport data now supports re-use of existing item objects via
`reuseItemsOnTableResize` flag
## Testing
### Scroll to item fix for non-table data (this should work without any
changes to plugins repo)
```python
import deephaven.ui as ui
from deephaven.ui import use_state
items = list("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")
@ui.component
def picker():
value, set_value = use_state("M")
# Picker for selecting values
pick = ui.picker(
label="Text",
on_selection_change=set_value,
selected_key=value,
children=items
)
# Show current selection in a ui.text component
text = ui.text("Selection: " + value)
# Display picker and output in a flex column
return ui.flex(
pick,
text,
direction="column",
margin=10,
gap=10,
)
p = picker()
```
### Table support
There is a draft PR in the plugins repo that enables the table support
on the plugins side of things (note that it currently will have type
errors but should run)
deephaven/deephaven-plugins#382
Here's an example that demonstrates a large number of items that also
tick
```python
import deephaven.ui as ui
from deephaven.ui import use_state
from deephaven import time_table
import datetime
mylist = ["mars", "pluto", "saturn"]
simple_ticking = time_table("PT2S", start_time=datetime.datetime.now() - datetime.timedelta(seconds=2000)).update([
'Id=(new Integer(i * 100))',
"Planet=mylist[ (int) (3 * Math.random()) % 3 ]",
])
@ui.component
def picker():
value, set_value = use_state(13800)
print("Test", value)
# Picker for selecting values
pick = ui.picker(
simple_ticking,
key_column="Id",
label_column="Planet",
label="Text",
on_selection_change=set_value,
selected_key=value,
)
# Show current selection in a ui.text component
text = ui.text("Selection: " + str(value))
# Display picker and output in a flex column
return ui.flex(
pick,
text,
direction="column",
margin=10,
gap=10,
)
picker_table = picker()
```
resolves #1858
mofojed
requested changes
Apr 3, 2024
| maybeExportedObject, | ||
| ]); | ||
|
|
||
| if (isElementOfType(children, ObjectView)) { |
Member
There was a problem hiding this comment.
I'd extract this logic to a boolean to make it clear and use it above as well, e.g.
const isTableSource = isElementOfType(children, ObjectView) && children.props.object.type === 'Table';`
const maybeExportedObject = isTableSource ? ... : ...
Something like that.
Contributor
Author
There was a problem hiding this comment.
I had to tweak this slightly to deal with the case where it is an ObjectView but not a Table
mofojed
approved these changes
Apr 3, 2024
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resolves #293