The Get Started guide present basic selectors which are plenty enough in most cases. However, linne comes with some more sophisticated ones if needed.
Below are the basic selectors available in linne.
sel_id() - Select an object by its id, e.g.:
sel_id('btn') selects
shiny::actionButton('btn', 'Button').sel_all() - Selects everything, will apply a change to
every element of the page.sel_input() - Selects an input by its id, e.g.:
sel_id('txt') selects
shiny::textInput('txt', 'Text').sel_class() - Select all elements bearing a specific
class, e.g.: sel_class('cls'), selects
shiny::h1('hello', class = 'cls').sel_tag() - Select all tags, e.g.:
sel_tag('p') selects p('hello').sel_attr() - Select all tags with a specific
attribute.Examples
You can also use some special operators to broaden or narrow down the selection.
%child% - Selects elements where right hand is child of
left hand, e.g.: sel_tag('div') %child% sel_class('aClass')
selects elements with aClass who are direct children of
div tags.%or% - Select left hand or right hand, e.g.:
sel_id('myId') %or% sel_class('myClass') will select both
the element with the id and elements with the class. Ideal to select and
apply changes multiple elements at once.%with% - Left hand selector with right hand selector,
e.g.: sel_tag('div') %with% sel_class('aClass') selects a
div with a class of aClass. Ideal to narrow
down the selection.Examples
You can also use the when_* family of functions to
narrow the selection based on the state of the element.
when_active() - Only select only active links.when_hover() - Only select when the element is
hovered.when_focus() - Only select when the elements is
focused.Examples