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Apply Default Leaflet Behavior for Selection Events

Source: R/leaflet.R
apply_default_leaflet_behavior.Rd

apply_default_leaflet_behavior is a helper function that provides consistent default behavior for leaflet maps when handling selection events. It manages popup display and map navigation based on the selection state.

Usage

apply_default_leaflet_behavior(map_proxy, selected_data, component_info)

Arguments

map_proxy

A leaflet map proxy object used to update the map

selected_data

A data frame or list containing the selected row/item data. If NULL, indicates deselection occurred.

component_info

A list containing component configuration information:

shared_id_column

Character. Name of the column containing unique identifiers

config

List containing:

lng_col

Character. Name of the longitude column

lat_col

Character. Name of the latitude column

highlight_zoom

Numeric. Zoom level to use when highlighting selection

Value

Returns the modified map proxy object with updated view and popups

Details

When selected_data is provided:

  • Creates a popup with "Selected" header and ID information

  • Sets map view to the selected location coordinates

  • Applies the configured highlight zoom level

When selected_data is NULL (deselection):

  • Removes all existing popups from the map

Examples

if (FALSE) { # \dontrun{
# Apply default behavior when item is selected
apply_default_leaflet_behavior(map_proxy, selected_row, component_info)

# Apply default behavior when item is deselected
apply_default_leaflet_behavior(map_proxy, NULL, component_info)
} # }