input-submit.md
In bslib: Custom 'Bootstrap' 'Sass' Themes for 'shiny' and 'rmarkdown'

input_submit_textarea() markup snapshots

Code
  input_submit_textarea("test")
Output
  <div class="bslib-input-submit-textarea shiny-input-container bslib-mb-spacing" style="width:min(680px, 100%);">
    <label class="control-label shiny-label-null" for="test" id="test-label"></label>
    <div class="bslib-submit-textarea-container">
      <textarea id="test" class="form-control" style="width:100%;" data-needs-modifier="" rows="1"></textarea>
      <footer>
        <div class="bslib-toolbar"></div>
        <button aria-label="Press Enter to Submit" class="btn btn-primary bslib-task-button btn-sm bslib-submit-textarea-btn" data-auto-reset id="test_submit" title="Press Enter to Submit" type="button">
          <bslib-switch-inline case="ready">
            <span slot="ready">
              Submit
              <span class="bslib-submit-key">⏎</span>
            </span>
            <span slot="busy">
              Submit
              <div class="spinner-border spinner-border-sm ms-2" role="status">
                <span class="visually-hidden">Processing...</span>
              </div>
            </span>
          </bslib-switch-inline>
        </button>
      </footer>
    </div>
  </div>

Code
  input_submit_textarea("test", label = "Enter text", placeholder = "Type here...",
    value = "Initial value", width = 300, rows = 3, button = tags$button(id = "custom_submit",
      class = "btn btn-primary", "Send"), toolbar = tagList(tags$span("Press"),
    tags$kbd("Enter"), tags$span("to submit")), submit_key = "enter", spellcheck = "false",
    autocomplete = "off", )
Output
  <div class="bslib-input-submit-textarea shiny-input-container bslib-mb-spacing" style="width:300px;">
    <label class="control-label" id="test-label" for="test">Enter text</label>
    <div class="bslib-submit-textarea-container">
      <textarea id="test" class="form-control" style="width:100%;" placeholder="Type here..." rows="3" spellcheck="false" autocomplete="off">Initial value</textarea>
      <footer>
        <div class="bslib-toolbar">
          <span>Press</span>
          <kbd>Enter</kbd>
          <span>to submit</span>
        </div>
        <button class="btn btn-primary bslib-submit-textarea-btn" id="custom_submit">Send</button>
      </footer>
    </div>
  </div>

input_submit_textarea() validation errors

Code
  input_submit_textarea("test", "With Children", div())
Condition
  Error in `input_submit_textarea()`:
  ! All `...` arguments must be named
  i Did you mean to pass UI elements to `toolbar`?

Code
  input_submit_textarea("test", value = 123)
Condition
  Error in `input_submit_textarea()`:
  ! `value` must be a character string

Code
  input_submit_textarea("test", value = c("a", "b"))
Condition
  Error in `input_submit_textarea()`:
  ! `value` must be a character string

Code
  input_submit_textarea("test", button = tags$div("Not a button"))
Condition
  Error in `input_submit_textarea()`:
  ! `button` must be a `tags$button()`

Code
  input_submit_textarea("test", submit_key = "invalid")
Condition
  Error in `input_submit_textarea()`:
  ! `submit_key` must be one of "enter+modifier" or "enter", not "invalid".