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ShadowDOM.md

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Shadow DOM of select-image

This is the description for the shadow DOM of the web component select-image.

DOM Structure

The shadow DOM contains an image and two buttons. The buttons are grouped by an span element with the class imagecontrols.

<img alt="" />
<span id="imagecontrols" part="sit-select-image-toolbar">
  <button id="selectImage" type="button"
    part="sit-select-image-select-button">${DEFAULT_SELECT_IMAGE_LABEL}</button>
  <button id="clearImage" type="button" disabled="disabled"
    part="sit-select-image-reset-button">${DEFAULT_CLEAR_IMAGE_LABEL}</button>
</span>

Styling

The pseudo element ::part() can be used to design the shadow DOM. Since version 1.1 the alternative styling with custom properties isn't longer supported.

Parts

You can declare some elements in the shadow DOM as parts. With the pseudo element selector ::part() you can address such elements and style them.

The declared parts are…

sit-select-image-toolbar

The HTMLSpanElement acts as the container for the buttons.

sit-select-image-select-button

The HTMLButtonElement to select a new image.

sit-select-image-reset-button

The HTMLButtonElement to reset the selected image.

There is an example for this on the demo page.