AddOn Fancybox

This addon loads all media attachments of a post into a "fancybox" instead of linking directly to the media.
Each post gets its own attachment library, when there are more than one media attached you can scroll through them.

fancybox/CHANGELOG.md

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+### Version 1.01
+
+* One gallery for each post
+* All media attached to a post are added to the posts gallery.
+* Loop scrolling: You can step from last media to first and vice versa.
+### Version 1.00
+
+* First test version released.
+* One fancybox per page displaying first media of each post.

fancybox/README.md

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+# Post image gallery using fancybox
+
+Addon author: [Grischa Brockhaus](https://brockha.us)
+
+## Description
+
+This addon loads all media attachments of a post into a "fancybox" instead of linking directly to the media.
+
+Each post gets its own attachment library, when there are more than one media attached you can scroll through them.
+
+## Licenses
+
+### Fancybox Library
+
+This AddOn is using the jQuery library [fancybox](https://github.com/fancyapps/fancybox). 
+
+The fancyBox libryry is licensed under the GPLv3 license for all open source applications. A commercial license is required for all commercial applications (including sites, themes and apps you plan to sell).
+
+[Read more about fancyBox license](https://github.com/fancyapps/fancybox).

fancybox/asset/fancybox/README.md

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+# fancyBox 3.5.7
+
+jQuery lightbox script for displaying images, videos and more.
+Touch enabled, responsive and fully customizable.
+
+See the [project page](http://fancyapps.com/fancybox/3/) for documentation and a demonstration.
+
+Follow [@thefancyapps](//twitter.com/thefancyapps) for updates.
+
+
+## Quick start
+
+1\.  Add latest jQuery and fancyBox files
+
+```html
+<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
+
+<link  href="/path/to/jquery.fancybox.min.css" rel="stylesheet">
+<script src="/path/to/jquery.fancybox.min.js"></script>
+```
+
+
+2\.  Create links
+
+```html
+<a data-fancybox="gallery" href="big_1.jpg">
+    <img src="small_1.jpg">
+</a>
+
+<a data-fancybox="gallery" href="big_2.jpg">
+    <img src="small_2.jpg">
+</a>
+```
+
+
+3\. Enjoy!
+
+
+## License
+
+fancyBox is licensed under the [GPLv3](http://choosealicense.com/licenses/gpl-3.0) license for all open source applications.
+A commercial license is required for all commercial applications (including sites, themes and apps you plan to sell).
+
+[Read more about fancyBox license](http://fancyapps.com/fancybox/3/#license).
+
+## Bugs and feature requests
+
+If you find a bug, please report it [here on Github](https://github.com/fancyapps/fancybox/issues).
+
+Guidelines for bug reports:
+
+1. Use the GitHub issue search — check if the issue has already been reported.
+2. Check if the issue has been fixed — try to reproduce it using the latest master or development branch in the repository.
+3. Isolate the problem — create a reduced test case and a live example. You can use CodePen to fork any demo found on documentation to use it as a template.
+
+A good bug report shouldn't leave others needing to chase you up for more information.
+Please try to be as detailed as possible in your report.
+
+
+Feature requests are welcome. Please look for existing ones and use GitHub's "reactions" feature to vote.
+
+Please do not use the issue tracker for personal support requests - use Stack Overflow ([fancybox-3](http://stackoverflow.com/questions/tagged/fancybox-3) tag) instead.

fancybox/asset/fancybox/fancybox.config.js

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+$(document).ready(function() {
+    $.fancybox.defaults.loop = "true";
+});

fancybox/asset/fancybox/jquery.fancybox.css

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+body.compensate-for-scrollbar {
+    overflow: hidden;
+}
+
+.fancybox-active {
+    height: auto;
+}
+
+.fancybox-is-hidden {
+    left: -9999px;
+    margin: 0;
+    position: absolute !important;
+    top: -9999px;
+    visibility: hidden;
+}
+
+.fancybox-container {
+    -webkit-backface-visibility: hidden;
+    height: 100%;
+    left: 0;
+    outline: none;
+    position: fixed;
+    -webkit-tap-highlight-color: transparent;
+    top: 0;
+    -ms-touch-action: manipulation;
+    touch-action: manipulation;
+    transform: translateZ(0);
+    width: 100%;
+    z-index: 99992;
+}
+
+.fancybox-container * {
+    box-sizing: border-box;
+}
+
+.fancybox-outer,
+.fancybox-inner,
+.fancybox-bg,
+.fancybox-stage {
+    bottom: 0;
+    left: 0;
+    position: absolute;
+    right: 0;
+    top: 0;
+}
+
+.fancybox-outer {
+    -webkit-overflow-scrolling: touch;
+    overflow-y: auto;
+}
+
+.fancybox-bg {
+    background: rgb(30, 30, 30);
+    opacity: 0;
+    transition-duration: inherit;
+    transition-property: opacity;
+    transition-timing-function: cubic-bezier(.47, 0, .74, .71);
+}
+
+.fancybox-is-open .fancybox-bg {
+    opacity: .9;
+    transition-timing-function: cubic-bezier(.22, .61, .36, 1);
+}
+
+.fancybox-infobar,
+.fancybox-toolbar,
+.fancybox-caption,
+.fancybox-navigation .fancybox-button {
+    direction: ltr;
+    opacity: 0;
+    position: absolute;
+    transition: opacity .25s ease, visibility 0s ease .25s;
+    visibility: hidden;
+    z-index: 99997;
+}
+
+.fancybox-show-infobar .fancybox-infobar,
+.fancybox-show-toolbar .fancybox-toolbar,
+.fancybox-show-caption .fancybox-caption,
+.fancybox-show-nav .fancybox-navigation .fancybox-button {
+    opacity: 1;
+    transition: opacity .25s ease 0s, visibility 0s ease 0s;
+    visibility: visible;
+}
+
+.fancybox-infobar {
+    color: #ccc;
+    font-size: 13px;
+    -webkit-font-smoothing: subpixel-antialiased;
+    height: 44px;
+    left: 0;
+    line-height: 44px;
+    min-width: 44px;
+    mix-blend-mode: difference;
+    padding: 0 10px;
+    pointer-events: none;
+    top: 0;
+    -webkit-touch-callout: none;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+}
+
+.fancybox-toolbar {
+    right: 0;
+    top: 0;
+}
+
+.fancybox-stage {
+    direction: ltr;
+    overflow: visible;
+    transform: translateZ(0);
+    z-index: 99994;
+}
+
+.fancybox-is-open .fancybox-stage {
+    overflow: hidden;
+}
+
+.fancybox-slide {
+    -webkit-backface-visibility: hidden;
+    /* Using without prefix would break IE11 */
+    display: none;
+    height: 100%;
+    left: 0;
+    outline: none;
+    overflow: auto;
+    -webkit-overflow-scrolling: touch;
+    padding: 44px;
+    position: absolute;
+    text-align: center;
+    top: 0;
+    transition-property: transform, opacity;
+    white-space: normal;
+    width: 100%;
+    z-index: 99994;
+}
+
+.fancybox-slide::before {
+    content: '';
+    display: inline-block;
+    font-size: 0;
+    height: 100%;
+    vertical-align: middle;
+    width: 0;
+}
+
+.fancybox-is-sliding .fancybox-slide,
+.fancybox-slide--previous,
+.fancybox-slide--current,
+.fancybox-slide--next {
+    display: block;
+}
+
+.fancybox-slide--image {
+    overflow: hidden;
+    padding: 44px 0;
+}
+
+.fancybox-slide--image::before {
+    display: none;
+}
+
+.fancybox-slide--html {
+    padding: 6px;
+}
+
+.fancybox-content {
+    background: #fff;
+    display: inline-block;
+    margin: 0;
+    max-width: 100%;
+    overflow: auto;
+    -webkit-overflow-scrolling: touch;
+    padding: 44px;
+    position: relative;
+    text-align: left;
+    vertical-align: middle;
+}
+
+.fancybox-slide--image .fancybox-content {
+    animation-timing-function: cubic-bezier(.5, 0, .14, 1);
+    -webkit-backface-visibility: hidden;
+    background: transparent;
+    background-repeat: no-repeat;
+    background-size: 100% 100%;
+    left: 0;
+    max-width: none;
+    overflow: visible;
+    padding: 0;
+    position: absolute;
+    top: 0;
+    -ms-transform-origin: top left;
+    transform-origin: top left;
+    transition-property: transform, opacity;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+    z-index: 99995;
+}
+
+.fancybox-can-zoomOut .fancybox-content {
+    cursor: zoom-out;
+}
+
+.fancybox-can-zoomIn .fancybox-content {
+    cursor: zoom-in;
+}
+
+.fancybox-can-swipe .fancybox-content,
+.fancybox-can-pan .fancybox-content {
+    cursor: -webkit-grab;
+    cursor: grab;
+}
+
+.fancybox-is-grabbing .fancybox-content {
+    cursor: -webkit-grabbing;
+    cursor: grabbing;
+}
+
+.fancybox-container [data-selectable='true'] {
+    cursor: text;
+}
+
+.fancybox-image,
+.fancybox-spaceball {
+    background: transparent;
+    border: 0;
+    height: 100%;
+    left: 0;
+    margin: 0;
+    max-height: none;
+    max-width: none;
+    padding: 0;
+    position: absolute;
+    top: 0;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+    width: 100%;
+}
+
+.fancybox-spaceball {
+    z-index: 1;
+}
+
+.fancybox-slide--video .fancybox-content,
+.fancybox-slide--map .fancybox-content,
+.fancybox-slide--pdf .fancybox-content,
+.fancybox-slide--iframe .fancybox-content {
+    height: 100%;
+    overflow: visible;
+    padding: 0;
+    width: 100%;
+}
+
+.fancybox-slide--video .fancybox-content {
+    background: #000;
+}
+
+.fancybox-slide--map .fancybox-content {
+    background: #e5e3df;
+}
+
+.fancybox-slide--iframe .fancybox-content {
+    background: #fff;
+}
+
+.fancybox-video,
+.fancybox-iframe {
+    background: transparent;
+    border: 0;
+    display: block;
+    height: 100%;
+    margin: 0;
+    overflow: hidden;
+    padding: 0;
+    width: 100%;
+}
+
+/* Fix iOS */
+.fancybox-iframe {
+    left: 0;
+    position: absolute;
+    top: 0;
+}
+
+.fancybox-error {
+    background: #fff;
+    cursor: default;
+    max-width: 400px;
+    padding: 40px;
+    width: 100%;
+}
+
+.fancybox-error p {
+    color: #444;
+    font-size: 16px;
+    line-height: 20px;
+    margin: 0;
+    padding: 0;
+}
+
+/* Buttons */
+
+.fancybox-button {
+    background: rgba(30, 30, 30, .6);
+    border: 0;
+    border-radius: 0;
+    box-shadow: none;
+    cursor: pointer;
+    display: inline-block;
+    height: 44px;
+    margin: 0;
+    padding: 10px;
+    position: relative;
+    transition: color .2s;
+    vertical-align: top;
+    visibility: inherit;
+    width: 44px;
+}
+
+.fancybox-button,
+.fancybox-button:visited,
+.fancybox-button:link {
+    color: #ccc;
+}
+
+.fancybox-button:hover {
+    color: #fff;
+}
+
+.fancybox-button:focus {
+    outline: none;
+}
+
+.fancybox-button.fancybox-focus {
+    outline: 1px dotted;
+}
+
+.fancybox-button[disabled],
+.fancybox-button[disabled]:hover {
+    color: #888;
+    cursor: default;
+    outline: none;
+}
+
+/* Fix IE11 */
+.fancybox-button div {
+    height: 100%;
+}
+
+.fancybox-button svg {
+    display: block;
+    height: 100%;
+    overflow: visible;
+    position: relative;
+    width: 100%;
+}
+
+.fancybox-button svg path {
+    fill: currentColor;
+    stroke-width: 0;
+}
+
+.fancybox-button--play svg:nth-child(2),
+.fancybox-button--fsenter svg:nth-child(2) {
+    display: none;
+}
+
+.fancybox-button--pause svg:nth-child(1),
+.fancybox-button--fsexit svg:nth-child(1) {
+    display: none;
+}
+
+.fancybox-progress {
+    background: #ff5268;
+    height: 2px;
+    left: 0;
+    position: absolute;
+    right: 0;
+    top: 0;
+    -ms-transform: scaleX(0);
+    transform: scaleX(0);
+    -ms-transform-origin: 0;
+    transform-origin: 0;
+    transition-property: transform;
+    transition-timing-function: linear;
+    z-index: 99998;
+}
+
+/* Close button on the top right corner of html content */
+
+.fancybox-close-small {
+    background: transparent;
+    border: 0;
+    border-radius: 0;
+    color: #ccc;
+    cursor: pointer;
+    opacity: .8;
+    padding: 8px;
+    position: absolute;
+    right: -12px;
+    top: -44px;
+    z-index: 401;
+}
+
+.fancybox-close-small:hover {
+    color: #fff;
+    opacity: 1;
+}
+
+.fancybox-slide--html .fancybox-close-small {
+    color: currentColor;
+    padding: 10px;
+    right: 0;
+    top: 0;
+}
+
+.fancybox-slide--image.fancybox-is-scaling .fancybox-content {
+    overflow: hidden;
+}
+
+.fancybox-is-scaling .fancybox-close-small,
+.fancybox-is-zoomable.fancybox-can-pan .fancybox-close-small {
+    display: none;
+}
+
+/* Navigation arrows */
+
+.fancybox-navigation .fancybox-button {
+    background-clip: content-box;
+    height: 100px;
+    opacity: 0;
+    position: absolute;
+    top: calc(50% - 50px);
+    width: 70px;
+}
+
+.fancybox-navigation .fancybox-button div {
+    padding: 7px;
+}
+
+.fancybox-navigation .fancybox-button--arrow_left {
+    left: 0;
+    left: env(safe-area-inset-left);
+    padding: 31px 26px 31px 6px;
+}
+
+.fancybox-navigation .fancybox-button--arrow_right {
+    padding: 31px 6px 31px 26px;
+    right: 0;
+    right: env(safe-area-inset-right);
+}
+
+/* Caption */
+
+.fancybox-caption {
+    background: linear-gradient(to top,
+        rgba(0, 0, 0, .85) 0%,
+        rgba(0, 0, 0, .3) 50%,
+        rgba(0, 0, 0, .15) 65%,
+        rgba(0, 0, 0, .075) 75.5%,
+        rgba(0, 0, 0, .037) 82.85%,
+        rgba(0, 0, 0, .019) 88%,
+        rgba(0, 0, 0, 0) 100%);
+    bottom: 0;
+    color: #eee;
+    font-size: 14px;
+    font-weight: 400;
+    left: 0;
+    line-height: 1.5;
+    padding: 75px 44px 25px 44px;
+    pointer-events: none;
+    right: 0;
+    text-align: center;
+    z-index: 99996;
+}
+
+@supports (padding: max(0px)) {
+    .fancybox-caption {
+        padding: 75px max(44px, env(safe-area-inset-right)) max(25px, env(safe-area-inset-bottom)) max(44px, env(safe-area-inset-left));
+    }
+}
+
+.fancybox-caption--separate {
+    margin-top: -50px;
+}
+
+.fancybox-caption__body {
+    max-height: 50vh;
+    overflow: auto;
+    pointer-events: all;
+}
+
+.fancybox-caption a,
+.fancybox-caption a:link,
+.fancybox-caption a:visited {
+    color: #ccc;
+    text-decoration: none;
+}
+
+.fancybox-caption a:hover {
+    color: #fff;
+    text-decoration: underline;
+}
+
+/* Loading indicator */
+
+.fancybox-loading {
+    animation: fancybox-rotate 1s linear infinite;
+    background: transparent;
+    border: 4px solid #888;
+    border-bottom-color: #fff;
+    border-radius: 50%;
+    height: 50px;
+    left: 50%;
+    margin: -25px 0 0 -25px;
+    opacity: .7;
+    padding: 0;
+    position: absolute;
+    top: 50%;
+    width: 50px;
+    z-index: 99999;
+}
+
+@keyframes fancybox-rotate {
+    100% {
+        transform: rotate(360deg);
+    }
+}
+
+/* Transition effects */
+
+.fancybox-animated {
+    transition-timing-function: cubic-bezier(0, 0, .25, 1);
+}
+
+/* transitionEffect: slide */
+
+.fancybox-fx-slide.fancybox-slide--previous {
+    opacity: 0;
+    transform: translate3d(-100%, 0, 0);
+}
+
+.fancybox-fx-slide.fancybox-slide--next {
+    opacity: 0;
+    transform: translate3d(100%, 0, 0);
+}
+
+.fancybox-fx-slide.fancybox-slide--current {
+    opacity: 1;
+    transform: translate3d(0, 0, 0);
+}
+
+/* transitionEffect: fade */
+
+.fancybox-fx-fade.fancybox-slide--previous,
+.fancybox-fx-fade.fancybox-slide--next {
+    opacity: 0;
+    transition-timing-function: cubic-bezier(.19, 1, .22, 1);
+}
+
+.fancybox-fx-fade.fancybox-slide--current {
+    opacity: 1;
+}
+
+/* transitionEffect: zoom-in-out */
+
+.fancybox-fx-zoom-in-out.fancybox-slide--previous {
+    opacity: 0;
+    transform: scale3d(1.5, 1.5, 1.5);
+}
+
+.fancybox-fx-zoom-in-out.fancybox-slide--next {
+    opacity: 0;
+    transform: scale3d(.5, .5, .5);
+}
+
+.fancybox-fx-zoom-in-out.fancybox-slide--current {
+    opacity: 1;
+    transform: scale3d(1, 1, 1);
+}
+
+/* transitionEffect: rotate */
+
+.fancybox-fx-rotate.fancybox-slide--previous {
+    opacity: 0;
+    -ms-transform: rotate(-360deg);
+    transform: rotate(-360deg);
+}
+
+.fancybox-fx-rotate.fancybox-slide--next {
+    opacity: 0;
+    -ms-transform: rotate(360deg);
+    transform: rotate(360deg);
+}
+
+.fancybox-fx-rotate.fancybox-slide--current {
+    opacity: 1;
+    -ms-transform: rotate(0deg);
+    transform: rotate(0deg);
+}
+
+/* transitionEffect: circular */
+
+.fancybox-fx-circular.fancybox-slide--previous {
+    opacity: 0;
+    transform: scale3d(0, 0, 0) translate3d(-100%, 0, 0);
+}
+
+.fancybox-fx-circular.fancybox-slide--next {
+    opacity: 0;
+    transform: scale3d(0, 0, 0) translate3d(100%, 0, 0);
+}
+
+.fancybox-fx-circular.fancybox-slide--current {
+    opacity: 1;
+    transform: scale3d(1, 1, 1) translate3d(0, 0, 0);
+}
+
+/* transitionEffect: tube */
+
+.fancybox-fx-tube.fancybox-slide--previous {
+    transform: translate3d(-100%, 0, 0) scale(.1) skew(-10deg);
+}
+
+.fancybox-fx-tube.fancybox-slide--next {
+    transform: translate3d(100%, 0, 0) scale(.1) skew(10deg);
+}
+
+.fancybox-fx-tube.fancybox-slide--current {
+    transform: translate3d(0, 0, 0) scale(1);
+}
+
+/* Styling for Small-Screen Devices */
+@media all and (max-height: 576px) {
+    .fancybox-slide {
+        padding-left: 6px;
+        padding-right: 6px;
+    }
+
+    .fancybox-slide--image {
+        padding: 6px 0;
+    }
+
+    .fancybox-close-small {
+        right: -6px;
+    }
+
+    .fancybox-slide--image .fancybox-close-small {
+        background: #4e4e4e;
+        color: #f2f4f6;
+        height: 36px;
+        opacity: 1;
+        padding: 6px;
+        right: 0;
+        top: 0;
+        width: 36px;
+    }
+
+    .fancybox-caption {
+        padding-left: 12px;
+        padding-right: 12px;
+    }
+
+    @supports (padding: max(0px)) {
+        .fancybox-caption {
+            padding-left: max(12px, env(safe-area-inset-left));
+            padding-right: max(12px, env(safe-area-inset-right));
+        }
+    }
+}
+/* Share */
+
+.fancybox-share {
+    background: #f4f4f4;
+    border-radius: 3px;
+    max-width: 90%;
+    padding: 30px;
+    text-align: center;
+}
+
+.fancybox-share h1 {
+    color: #222;
+    font-size: 35px;
+    font-weight: 700;
+    margin: 0 0 20px 0;
+}
+
+.fancybox-share p {
+    margin: 0;
+    padding: 0;
+}
+
+.fancybox-share__button {
+    border: 0;
+    border-radius: 3px;
+    display: inline-block;
+    font-size: 14px;
+    font-weight: 700;
+    line-height: 40px;
+    margin: 0 5px 10px 5px;
+    min-width: 130px;
+    padding: 0 15px;
+    text-decoration: none;
+    transition: all .2s;
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+    white-space: nowrap;
+}
+
+.fancybox-share__button:visited,
+.fancybox-share__button:link {
+    color: #fff;
+}
+
+.fancybox-share__button:hover {
+    text-decoration: none;
+}
+
+.fancybox-share__button--fb {
+    background: #3b5998;
+}
+
+.fancybox-share__button--fb:hover {
+    background: #344e86;
+}
+
+.fancybox-share__button--pt {
+    background: #bd081d;
+}
+
+.fancybox-share__button--pt:hover {
+    background: #aa0719;
+}
+
+.fancybox-share__button--tw {
+    background: #1da1f2;
+}
+
+.fancybox-share__button--tw:hover {
+    background: #0d95e8;
+}
+
+.fancybox-share__button svg {
+    height: 25px;
+    margin-right: 7px;
+    position: relative;
+    top: -1px;
+    vertical-align: middle;
+    width: 25px;
+}
+
+.fancybox-share__button svg path {
+    fill: #fff;
+}
+
+.fancybox-share__input {
+    background: transparent;
+    border: 0;
+    border-bottom: 1px solid #d7d7d7;
+    border-radius: 0;
+    color: #5d5b5b;
+    font-size: 14px;
+    margin: 10px 0 0 0;
+    outline: none;
+    padding: 10px 15px;
+    width: 100%;
+}
+/* Thumbs */
+
+.fancybox-thumbs {
+    background: #ddd;
+    bottom: 0;
+    display: none;
+    margin: 0;
+    -webkit-overflow-scrolling: touch;
+    -ms-overflow-style: -ms-autohiding-scrollbar;
+    padding: 2px 2px 4px 2px;
+    position: absolute;
+    right: 0;
+    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+    top: 0;
+    width: 212px;
+    z-index: 99995;
+}
+
+.fancybox-thumbs-x {
+    overflow-x: auto;
+    overflow-y: hidden;
+}
+
+.fancybox-show-thumbs .fancybox-thumbs {
+    display: block;
+}
+
+.fancybox-show-thumbs .fancybox-inner {
+    right: 212px;
+}
+
+.fancybox-thumbs__list {
+    font-size: 0;
+    height: 100%;
+    list-style: none;
+    margin: 0;
+    overflow-x: hidden;
+    overflow-y: auto;
+    padding: 0;
+    position: absolute;
+    position: relative;
+    white-space: nowrap;
+    width: 100%;
+}
+
+.fancybox-thumbs-x .fancybox-thumbs__list {
+    overflow: hidden;
+}
+
+.fancybox-thumbs-y .fancybox-thumbs__list::-webkit-scrollbar {
+    width: 7px;
+}
+
+.fancybox-thumbs-y .fancybox-thumbs__list::-webkit-scrollbar-track {
+    background: #fff;
+    border-radius: 10px;
+    box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
+}
+
+.fancybox-thumbs-y .fancybox-thumbs__list::-webkit-scrollbar-thumb {
+    background: #2a2a2a;
+    border-radius: 10px;
+}
+
+.fancybox-thumbs__list a {
+    -webkit-backface-visibility: hidden;
+    backface-visibility: hidden;
+    background-color: rgba(0, 0, 0, .1);
+    background-position: center center;
+    background-repeat: no-repeat;
+    background-size: cover;
+    cursor: pointer;
+    float: left;
+    height: 75px;
+    margin: 2px;
+    max-height: calc(100% - 8px);
+    max-width: calc(50% - 4px);
+    outline: none;
+    overflow: hidden;
+    padding: 0;
+    position: relative;
+    -webkit-tap-highlight-color: transparent;
+    width: 100px;
+}
+
+.fancybox-thumbs__list a::before {
+    border: 6px solid #ff5268;
+    bottom: 0;
+    content: '';
+    left: 0;
+    opacity: 0;
+    position: absolute;
+    right: 0;
+    top: 0;
+    transition: all .2s cubic-bezier(.25, .46, .45, .94);
+    z-index: 99991;
+}
+
+.fancybox-thumbs__list a:focus::before {
+    opacity: .5;
+}
+
+.fancybox-thumbs__list a.fancybox-thumbs-active::before {
+    opacity: 1;
+}
+
+/* Styling for Small-Screen Devices */
+@media all and (max-width: 576px) {
+    .fancybox-thumbs {
+        width: 110px;
+    }
+
+    .fancybox-show-thumbs .fancybox-inner {
+        right: 110px;
+    }
+
+    .fancybox-thumbs__list a {
+        max-width: calc(100% - 10px);
+    }
+}

fancybox/createrelease

@@ -0,0 +1,17 @@
+MODULE=fancybox
+
+cd ..
+
+# read actual version from module.json
+
+# old releases not needed anymore
+mkdir -p $MODULE/dist
+rm $MODULE/dist/*
+
+# create release for actual version
+zip -r9 $MODULE/dist/release.zip $MODULE/* -x $MODULE/dist/\* -x $MODULE/test/\* $MODULE/createrelease
+
+echo release/release.zip created.
+
+cd $MODULE
+

fancybox/fancybox.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * Name: Fancybox
+ * Description: Open media attachments of posts into a fancybox overlay.
+ * Version: 1.01
+ * Author: Grischa Brockhaus <grischa@brockha.us>
+ */
+
+use Friendica\App;
+use Friendica\Core\Hook;
+use Friendica\DI;
+
+function fancybox_install()
+{
+    Hook::register('head', __FILE__, 'fancybox_head');
+    Hook::register('footer', __FILE__, 'fancybox_footer');
+    Hook::register('prepare_body_final', __FILE__, 'fancybox_render');
+}
+
+function fancybox_head(App $a, string &$b)
+{
+    DI::page()->registerStylesheet(__DIR__ . '/asset/fancybox/jquery.fancybox.min.css');
+}
+function fancybox_footer(App $a, string &$str)
+{
+    DI::page()->registerFooterScript(__DIR__ . '/asset/fancybox/jquery.fancybox.min.js');
+    DI::page()->registerFooterScript(__DIR__ . '/asset/fancybox/fancybox.config.js');
+}
+
+/*
+
+prepare_body_final
+
+Called at the end of prepare_body(). Hook data:
+
+    item: item array (input)
+    html: converted item body (input/output)
+
+*/
+
+function fancybox_render(App $a, array &$b) {
+    $matches = [];
+    $pattern='#<div class="body-attach">.*?</div>#s';
+    $gallery = 'gallery';
+    if (array_key_exists('item', $b)) {
+        $item = $b['item'];
+        if (array_key_exists('uri-id', $item)) {
+            $gallery = $gallery . '-' . $item['uri-id'];
+        }
+    }
+    $html = $b['html'];
+    while (preg_match($pattern, $html, $matches, PREG_OFFSET_CAPTURE)) {
+        if (is_array($matches)) $matches=$matches[0];
+        $part = $matches[0];
+        $replaced = str_replace('<a href', '<a data-fancybox="' . $gallery . '" href', $part);
+        $replaced = str_replace('<div class="body-attach"', '<div class="body-attach done"', $replaced);
+        $html =str_replace($part, $replaced, $html);
+    }
+    $html = str_replace('class="body-attach done"', 'class="body-attach"', $html);
+    $b['html'] = $html;
+}

fancybox/test/imagetest.html

@@ -0,0 +1,21 @@
+<html>
+<head>
+<!-- https://github.com/friendica/friendica/tree/stable/doc -->
+<!-- https://github.com/friendica/friendica/blob/stable/doc/Addons.md -->
+<!-- https://stackoverflow.com/questions/44409223/show-image-in-a-popup-when-i-click-button -->
+<!-- https://github.com/fancyapps/fancybox -->
+<link href="https://cdnjs.cloudflare.com/ajax/libs/fancybox/3.2.0/jquery.fancybox.min.css" rel="stylesheet" />
+<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/fancybox/3.2.0/jquery.fancybox.min.js"></script>
+</head>
+<body>
+<div class="body-attach"><a data-fancybox="gallery" href="https://social.beachcom.org/system/media_attachments/files/109/395/536/026/043/860/original/cb17a73a2a5cd86f.jpeg"><img src="https://friends.brockha.us/photo/preview/600/3734" alt="" title=""></a>
+<br>
+<div class="clear"></div></div>
+
+<div class="body-attach"><a data-fancybox="gallery" href="https://media.troet.cafe/troet.cafe/media_attachments/files/109/393/109/756/233/529/original/4290ef9eb5d7b799.jpeg"><img src="https://friends.brockha.us/photo/preview/1024/3729" alt="Tardis cookie jar and Tardis book, like River Songs diary." title="Tardis cookie jar and Tardis book, like River Songs diary."></a>
+<br>
+<div class="clear"></div></div>
+
+</body>
+</html>

fancybox/test/test.html

@@ -0,0 +1,14 @@
+<p>Blubber Start</p>
+<div class="clearfix"></div>
+
+				<hr />
+				<div class="wall-item-content post" id="wall-item-content-21657">
+
+			<div class="wall-item-body e-content p-name" id="wall-item-body-21657" dir="auto">Aktuell blockieren Unterstützer:innen der Letzten Generation das Rollfeld des BER.<br>Einige haben sich auf dem Asphalt festgeklebt, andere fahren mit Rad über den Rangierbereich und bringen so den Flugverkehr zum Erliegen. Vor dem Betreten des BER informierten sie die Polizei. <a href="https://t.co/c6UGVfPDI9" target="_blank" rel="noopener noreferrer">https://t.co/c6UGVfPDI9</a><div class="body-attach"><a href="https://climatejustice.social/system/media_attachments/files/109/400/027/751/450/406/original/9217a95e2bca723f.jpg"><img src="https://friends.brockha.us/photo/preview/1024/4292" alt="" title=""></a>
+<br>
+<a href="https://climatejustice.social/system/media_attachments/files/109/400/028/270/759/610/original/33b8b6d69d0d98fa.jpg"><img src="https://friends.brockha.us/photo/preview/600/4294" alt="" title=""></a>
+<br>
+<a href="https://climatejustice.social/system/media_attachments/files/109/400/028/712/968/943/original/2affd82b2c9a50c9.jpg"><img src="https://friends.brockha.us/photo/preview/600/4296" alt="" title=""></a>
+<br>
+<div class="clear"></div></div></div>
+<p>Blubber Ende</p>

fancybox/test/test.out.html

@@ -0,0 +1,14 @@
+<p>Blubber Start</p>
+<div class="clearfix"></div>
+
+				<hr />
+				<div class="wall-item-content post" id="wall-item-content-21657">
+
+			<div class="wall-item-body e-content p-name" id="wall-item-body-21657" dir="auto">Aktuell blockieren Unterstützer:innen der Letzten Generation das Rollfeld des BER.<br>Einige haben sich auf dem Asphalt festgeklebt, andere fahren mit Rad über den Rangierbereich und bringen so den Flugverkehr zum Erliegen. Vor dem Betreten des BER informierten sie die Polizei. <a href="https://t.co/c6UGVfPDI9" target="_blank" rel="noopener noreferrer">https://t.co/c6UGVfPDI9</a><div class="body-attach"><a data-fancybox="gallery" href="https://climatejustice.social/system/media_attachments/files/109/400/027/751/450/406/original/9217a95e2bca723f.jpg"><img src="https://friends.brockha.us/photo/preview/1024/4292" alt="" title=""></a>
+<br>
+<a data-fancybox="gallery" href="https://climatejustice.social/system/media_attachments/files/109/400/028/270/759/610/original/33b8b6d69d0d98fa.jpg"><img src="https://friends.brockha.us/photo/preview/600/4294" alt="" title=""></a>
+<br>
+<a data-fancybox="gallery" href="https://climatejustice.social/system/media_attachments/files/109/400/028/712/968/943/original/2affd82b2c9a50c9.jpg"><img src="https://friends.brockha.us/photo/preview/600/4296" alt="" title=""></a>
+<br>
+<div class="clear"></div></div></div>
+<p>Blubber Ende</p>