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hl-img

v2.1.0

Published

I added a custom element into my site for highlightable images, now I need to make it a repo so I don't lose track.

Downloads

11

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Links

Git

Maintainers

strawmelonjuicestrawmelonjuice

Keywords

Readme

Dynamic JSON Badge license

hl-img

I added a custom element into my site for highlightable images, now I need to make it a repo so I don't lose track.

NOTE:

Google does not like the use of elements like these, mainly because browsers or bots that don't fire the javascript, will not be able to see any images. Though Google's HTML-checker web.dev loads hl-img in their tests, allowing it to pass that test after all.

How to embed

Thanks to the defer attribute, they'll load after the body is loaded, so you can place them anywhere. However, for best reliability, please add this at the end of the <body>.

From JSdelivr

Minified

<script id="hlimg-options" type="application/json">{"timing_fade_opacity": 0.5,	"timing_pop_location": 700,	"styling_closenotif_positioning": "top: 2em; right: 2em;",	"styling_closenotif_colors_background": "#000",	"styling_closenotif_colors_text": "#FFF",	"styling_closenotif_border_thickness": "2.5px",	"styling_closenotif_border_type": "solid","styling_closenotif_border_color": "#848484","styling_closenotif_padding": "4px","styling_imageshow_zIndex": 900,"styling_imageshow_positioning": "top: 20%; bottom: 20%; left: 10%; right: 10%;","styling_imageshow_colors_background": "#f5f5f5","styling_imageshow_border_thickness": ".2em","styling_imageshow_border_type": "solid","styling_imageshow_border_color": "currentColor","styling_imageshow_border_radius": "0%","styling_hlimg_maxwidth": "80%","styling_hlimg_maxheight": "100%"}</script>
<script defer type="module" src="https://cdn.jsdelivr.net/npm/hl-img@2/dist/hl-img.min.js"></script>

For the extra-minified version, just use https://cdn.jsdelivr.net/npm/hl-img@2/dist/hl-img.e.min.js, instead.

Unminified

<script id="hlimg-options" type="application/json">{
	"timing_fade_opacity": 0.5,
	"timing_pop_location": 700,
	"styling_closenotif_positioning": "top: 2em; right: 2em;",
	"styling_closenotif_colors_background": "#000",
	"styling_closenotif_colors_text": "#FFF",
	"styling_closenotif_border_thickness": "2.5px",
	"styling_closenotif_border_type": "solid",
	"styling_closenotif_border_color": "#848484",
	"styling_closenotif_padding": "4px",
	"styling_imageshow_zIndex": 900,
	"styling_imageshow_positioning": "top: 20%; bottom: 20%; left: 10%; right: 10%;",
	"styling_imageshow_colors_background": "#f5f5f5",
	"styling_imageshow_border_thickness": ".2em",
	"styling_imageshow_border_type": "solid",
	"styling_imageshow_border_color": "currentColor",
	"styling_imageshow_border_radius": "0%",
	"styling_hlimg_maxwidth": "80%",
	"styling_hlimg_maxheight": "100%"
}</script>
<script defer type="module" src="https://cdn.jsdelivr.net/npm/hl-img@2/dist/hl-img.js"></script>

Version-specific

For version-specific JSdelivr's, browse https://cdn.jsdelivr.net/npm/hl-img/.

NOTE: Versions before v2 worked really different. See the old readme for those.

Install using NPM

npm i hl-img

And then embed it from your own host.

<script id="hlimg-options" type="application/json">{
	"timing_fade_opacity": 0.5,
	"timing_pop_location": 700,
	"styling_closenotif_positioning": "top: 2em; right: 2em;",
	"styling_closenotif_colors_background": "#000",
	"styling_closenotif_colors_text": "#FFF",
	"styling_closenotif_border_thickness": "2.5px",
	"styling_closenotif_border_type": "solid",
	"styling_closenotif_border_color": "#848484",
	"styling_closenotif_padding": "4px",
	"styling_imageshow_zIndex": 900,
	"styling_imageshow_positioning": "top: 20%; bottom: 20%; left: 10%; right: 10%;",
	"styling_imageshow_colors_background": "#f5f5f5",
	"styling_imageshow_border_thickness": ".2em",
	"styling_imageshow_border_type": "solid",
	"styling_imageshow_border_color": "currentColor",
	"styling_imageshow_border_radius": "0%",
	"styling_hlimg_maxwidth": "80%",
	"styling_hlimg_maxheight": "100%"
}</script>
<script defer type="module" src="someplace/node_modules/hl-img/dist/hl-img.js"></script>

Attributes

An example

<hl-img preview="/assets/img/media/art/MM2.png" alt="MouseMouse!" highlight="/assets/img/media/art/MM2.webp"></hl-img>

This was my first use case of <hl-img>.

Supported

  • preview – The preview-attribute is used as the src attribute when the image is not in highlight-mode. If not specified, will be inherited from src.

  • highlight – The highlight-attribute is used as the src attribute when the image is currently in highlight-mode. If not specified, will be inherited from preview.

  • href – href attributes specify which link to open on clicking on the highlighted image.

Inherited

  • alt – The <img>'s alt-attribute is copied one-on-one. No changes in functioning.

  • src – <hl-img>-elements do support <img>'s src-attribute, but will only use it as a fallback, in case preview is not specified.

  • style – Styles are inherited, but may be altered by hl-img.

  • id and class – Ids and classes are inherited, however, if none are specified, hl-img will assign them. It will also add the hl-image class in all cases.

  • width and height – Are inherited.

Future support

Add an issue if you're missing anything.

Customization

Before calling hl-img, you can declare some of it's options, if you don't, their defaults will be used.

An example of how an custom configuration would look in HTML:

<html>
    <head>
        ...
    </head>
<body>
   ...
    <main>
        ...
    </main>
<script id="hlimg-options" type="application/json">
    {"styling_closenotif_positioning":"bottom: 2em; right: 4em;","styling_closenotif_colors_background":"#FFF","styling_closenotif_colors_text":"#000","styling_imageshow_zIndex":900000,"styling_imageshow_colors_background":"#000","styling_imageshow_border_radius":"25%"}
</script>
<script defer type="module" src="hl-img"></script>
</body>
</html>

Note that these changes happen globally, so they'll be applied to the entire page, the moment hl-img is ran.

List of customization variables

  • Timing:

    • timing_fade_opacity (number) – The time in seconds of the fade-in/fade-out animation on the images. Default: 0.5

    • timing_pop_location (number) – Time in miliseconds to wait before moving images. By default a little longer than timing_fade_opacity so that it can run its animation. Default: 700

  • Styling

    • Closing modal

      • styling_closenotif_positioning (string) – CSS code for positioning the closing modal. Default: "top: 2em; right: 2em"

      • styling_closenotif_colors_background (string) – Background colour for the closing modal. Default: "#000"

      • styling_closenotif_colors_text (string) – Text colour for the closing modal. Default: "#FFF"

      • styling_closenotif_border_thickness (string) – Border thickness for the closing modal. Default: "2.5px"

      • styling_closenotif_border_type (string) – Type of the closing modal's border, CSS value. Default: "solid"

      • styling_closenotif_border_color (string) – The colour of the closing modal's border. Default: "#848484"

      • styling_closenotif_padding (string) – Padding for the text inside the closing modal. Default: "4px"

    • Highlighted image

      • styling_imageshow_zIndex (number) – Z-Index for the image when highlighted, the Z-Index of the closing modal will always be this +1. CSS value. Default: 900

      • styling_imageshow_positioning (string) – CSS code for positioning the highlighted image. Default: top: 20%; bottom: 20%; left: 10%; right: 10%"

      • styling_imageshow_colors_background (string) – Background colour for highlighted image -- shows when image is transparent. Default: "#f5f5f5"

      • styling_imageshow_border_thickness (string) – Border thickness for the highlighted image. Default: ".2em"

      • styling_imageshow_border_type (string) – Type of the highlighted images' border, CSS value. Default: "solid"

      • styling_imageshow_border_color (string) – Highlighted images' border color. Default:"currentColor"

      • styling_imageshow_border_radius (string) – Border radius for highlighted image. Default:"0%"

      • styling_hlimg_maxwidth (string) – Max-width for all <hlimg>'s. Set to "" To disable. Default: "80%"

      • styling_hlimg_maxwidth (string) – Max-height for all <hlimg>'s. Set to "" To disable. Default: "100%"