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Setup.org

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Setup

This file only serves auxiliary purposes, like how the documentation should be published, what license to use, etc.

Helpers

(defun react->reagent (name)
 (s-dashed-words
  (if (not (equal name "ReactFlow"))
      (s-replace "React" "Reagent" name)
    name)))
(defonce root (atom nil))

(defn error-boundary [& children]
  (let [error (r/atom nil)]
    (r/create-class
     {:display-name                 "ErrorBoundary" 
      :get-derived-state-from-error (fn [e] #js {})
      :component-did-catch          (fn [err info] (reset! error [err info])) 
      :reagent-render
      (fn [& children]
        (if (nil? @error)
          (into [:<>] children)
          (let [[_ info] @error]
            [:pre.error
             [:code (pr-str info)]
             [:br]
             [:button {:on-click #(.error js/console info)} "Output stacktrace"]])))})))

(defn ^:export init [element]
  (when (nil? @root)
    (reset! root (rdom/create-root element))
    (rdom/render @root [error-boundary [main]])))

(defn ^:export unload [element]
  (when (not (nil? @root))
    (rdom/unmount @root)
    (reset! root nil)))

License

;;
;; This program is written in a literate style. That means; this
;; source-file is generated and you should not make direct edits. You
;; should instead make your contributions in `index.org` and tangle it.
;; Please have a look at https://orgmode.org/ for more information.
;;
;; --------------------------------------------------------------------
;;
;;   <<license>>
;;

(format-time-string "%Y")
MIT License

Copyright (C) <<year()>> DNV GL

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Publishing

Documentation can be published with M-x org-publish-project. This will also tangle this setup-file which contain all the styles etc for the documentation-page.

(unless (boundp 'org-publish-project-alist)
  (setq org-publish-project-alist nil))

(add-to-list 'org-publish-project-alist
	     `("reagent-flow-static"
	       :base-directory ,default-directory
	       :base-extension "png\\|jpg\\|gif\\|svg"
	       :publishing-directory ,(expand-file-name "docs" default-directory)
	       :publishing-function org-publish-attachment))

(add-to-list 'org-publish-project-alist
	     `("reagent-flow-html-docs"
	       :base-directory ,default-directory
	       :publishing-directory ,(expand-file-name "docs" default-directory)
	       :publishing-function org-html-publish-to-html
	       :section-numbers nil
	       :html-head-include-default-style nil
	       :html-head-include-scripts nil
	       :html-postamble nil
	       :htmlize-output-type "css"
	       :htmlized-source t
	       :exclude "README\\.org\\|Setup\\.org"
	       :with-toc t))

(add-to-list 'org-publish-project-alist
	     `("reagent-flow"
	       :components ("reagent-flow-static" "reagent-flow-html-docs")))

(add-hook 'org-publish-after-publishing-hook
          (lambda (orig out) (org-babel-tangle-file orig)))

Styles

Theme

:root {
    --identity-hs: 218, 100%;
    --identity-hsl: var(--identity-hs), 28%;
    --inactive-hsl: 0, 0%, 60%;

    --primary-hsl: var(--identity-hs), 40%;

    --face-hs: 0, 0%;
    --face-hsl: var(--face-hs), 20%;

    --background-hs: 0, 0%;
    --background-hsl: var(--background-hs), 100%;

    --warning-hs: 331, 74%;
    --warning-hsl: var(--warning-hs), 30%;

    --function-name-hs: 20, 50%;
    --function-name-hsl: var(--function-name-hs), 40%;

    --variable-name-hs: 40, 50%;
    --variable-name-hsl: var(--variable-name-hs), 40%;
    
    --type-hs: 100, 30%;
    --type-hsl: var(--type-hs), 40%;
    
    --string-hs: 0, 30%;
    --string-hsl: var(--string-hs), 50%;
    
    --constant-hs: 40, 60%;
    --constant-hsl: var(--constant-hs), 50%;
    
    --keyword-hs: 250, 40%;
    --keyword-hsl: var(--keyword-hs), 50%;

    --todo-hs: 0, 80%;
    --todo-hsl: var(--todo-hs), 80%;

    --dots-hex: #ddd;

    --easeInOutCubic: cubic-bezier(0.645, 0.045, 0.355, 1.000);
    --radius: 0.5em;
    --shadow: 0 .1em .2em hsla(var(--identity-hsl), 0.3);
}

@media (prefers-color-scheme: dark) {
    :root {
        --background-hsl: var(--background-hs), 10%;
        --face-hsl: var(--face-hs), 70%;
	--inactive-hsl: 0, 0%, 85%;
        --dots-hex: #333;
    }
}

Base

*,
::before,
::after {
    box-sizing: border-box;
}

html,
body {
    background: hsl(var(--background-hsl));
    color: hsl(var(--face-hsl));
    margin: 0;
}

*:not(input) {
  user-select: none;
}

#content {
    margin: 0 auto;
    max-width: 110em;
    padding: 3vw;
}

.error {
    background: hsl(var(--warning-hsl));
    border: .5em solid hsl(var(--warning-hs), 20%);
    color: white;
    overflow: auto;
    padding: 2em;
}
.error button {
    --webkit-appearance: none;
    background: hsl(var(--warning-hs), 20%);
    border: none;
    color: white;
    margin: 1em 0;
    padding: 0.5em 1em;
    transition: background .2s ease;
}
.error button:hover {
    background: hsl(var(--warning-hs), 15%);
}
.error button:active {
    background: hsl(var(--warning-hs), 10%);
}

Typography

:root {
    --sans-serif: -apple-system, BlinkMacSystemFont, Segoe UI,
      Roboto, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans,
      Helvetica Neue, sans-serif;
    --monospace: JetBrains Mono, Roboto Mono, Courier, Courier New;
}

html {
    font-size: 62.5%;
}
body {
    font-size: 1.5em;
    font-family: var(--sans-serif);
}

.title {
    font-size: calc(3em + 4vw);
    line-height: .9em;
    margin: 29vh 0;
}
.title .subtitle {
    font-size: 5vw;
    font-weight: 100;
}
h2 {
    margin-top: 20vh;
    font-size: calc(2em + 2vw);
    font-weight: 100;
}
h3 {
    font-size: calc(1.5em + 1.25vw);
    font-weight: 100;
}

p {
    font-size: 1.3em;
    line-height: 1.5em;
    max-width: 30em;
}

p > code {
    background: var(--dots-hex);
    border-radius: .2em;
    padding: .1em .5em;
    display: inline-block;
}

pre,
code {
    font-family: var(--monospace);
}

xyflow

.react-flow {
  direction: ltr;

  --xy-edge-stroke-default: #b1b1b7;
  --xy-edge-stroke-width-default: 1;
  --xy-edge-stroke-selected-default: #555;

  --xy-connectionline-stroke-default: #b1b1b7;
  --xy-connectionline-stroke-width-default: 1;

  --xy-attribution-background-color-default: rgba(255, 255, 255, 0.5);

  --xy-minimap-background-color-default: #fff;
  --xy-minimap-mask-background-color-default: rgb(240, 240, 240, 0.6);
  --xy-minimap-mask-stroke-color-default: transparent;
  --xy-minimap-mask-stroke-width-default: 1;
  --xy-minimap-node-background-color-default: #e2e2e2;
  --xy-minimap-node-stroke-color-default: transparent;
  --xy-minimap-node-stroke-width-default: 2;

  --xy-background-color-default: transparent;
  --xy-background-pattern-dots-color-default: #91919a;
  --xy-background-pattern-lines-color-default: #eee;
  --xy-background-pattern-cross-color-default: #e2e2e2;
}

.react-flow.dark {
  --xy-edge-stroke-default: #3e3e3e;
  --xy-edge-stroke-width-default: 1;
  --xy-edge-stroke-selected-default: #727272;

  --xy-connectionline-stroke-default: #b1b1b7;
  --xy-connectionline-stroke-width-default: 1;

  --xy-attribution-background-color-default: rgba(150, 150, 150, 0.25);

  --xy-minimap-background-color-default: #141414;
  --xy-minimap-mask-background-color-default: rgb(60, 60, 60, 0.6);
  --xy-minimap-mask-stroke-color-default: transparent;
  --xy-minimap-mask-stroke-width-default: 1;
  --xy-minimap-node-background-color-default: #2b2b2b;
  --xy-minimap-node-stroke-color-default: transparent;
  --xy-minimap-node-stroke-width-default: 2;

  --xy-background-color-default: #141414;
  --xy-background-pattern-dots-color-default: #777;
  --xy-background-pattern-lines-color-default: #777;
  --xy-background-pattern-cross-color-default: #777;
}

.react-flow {
  background-color: var(--xy-background-color, var(--xy-background-color-default));
}

.react-flow__background {
  background-color: var(--xy-background-color, var(--xy-background-color-props, var(--xy-background-color-default)));
}

.react-flow__container {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

.react-flow__pane {
  z-index: 1;

  &.draggable {
    cursor: grab;
  }

  &.dragging {
    cursor: grabbing;
  }

  &.selection {
    cursor: pointer;
  }
}

.react-flow__viewport {
  transform-origin: 0 0;
  z-index: 2;
  pointer-events: none;
}

.react-flow__renderer {
  z-index: 4;
}

.react-flow__selection {
  z-index: 6;
}

.react-flow__nodesselection-rect:focus,
.react-flow__nodesselection-rect:focus-visible {
  outline: none;
}

.react-flow__edge-path {
  stroke: var(--xy-edge-stroke, var(--xy-edge-stroke-default));
  stroke-width: var(--xy-edge-stroke-width, var(--xy-edge-stroke-width-default));
  fill: none;
}

.react-flow__connection-path {
  stroke: var(--xy-connectionline-stroke, var(--xy-connectionline-stroke-default));
  stroke-width: var(--xy-connectionline-stroke-width, var(--xy-connectionline-stroke-width-default));
  fill: none;
}

.react-flow .react-flow__edges {
  position: absolute;

  svg {
    overflow: visible;
    position: absolute;
    pointer-events: none;
  }
}

.react-flow__edge {
  pointer-events: visibleStroke;

  &.selectable {
    cursor: pointer;
  }

  &.animated path {
    stroke-dasharray: 5;
    animation: dashdraw 0.5s linear infinite;
  }

  &.animated path.react-flow__edge-interaction {
    stroke-dasharray: none;
    animation: none;
  }

  &.inactive {
    pointer-events: none;
  }

  &.selected,
  &:focus,
  &:focus-visible {
    outline: none;
  }

  &.selected .react-flow__edge-path,
  &.selectable:focus .react-flow__edge-path,
  &.selectable:focus-visible .react-flow__edge-path {
    stroke: var(--xy-edge-stroke-selected, var(--xy-edge-stroke-selected-default));
  }

  &-textwrapper {
    pointer-events: all;
  }

  .react-flow__edge-text {
    pointer-events: none;
    user-select: none;
  }
}
.react-flow__connection {
  pointer-events: none;

  .animated {
    stroke-dasharray: 5;
    animation: dashdraw 0.5s linear infinite;
  }
}

svg.react-flow__connectionline {
  z-index: 1001;
  overflow: visible;
  position: absolute;
}

.react-flow__nodes {
  pointer-events: none;
  transform-origin: 0 0;
}

.react-flow__node {
  position: absolute;
  user-select: none;
  pointer-events: all;
  transform-origin: 0 0;
  box-sizing: border-box;
  cursor: default;

  &.selectable {
    cursor: pointer;
  }

  &.draggable {
    cursor: grab;
    pointer-events: all;

    &.dragging {
      cursor: grabbing;
    }
  }
}

.react-flow__nodesselection {
  z-index: 3;
  transform-origin: left top;
  pointer-events: none;

  &-rect {
    position: absolute;
    pointer-events: all;
    cursor: grab;
  }
}

.react-flow__handle {
  position: absolute;
  pointer-events: none;
  min-width: 5px;
  min-height: 5px;

  &.connectingfrom {
    pointer-events: all;
  }

  &.connectionindicator {
    pointer-events: all;
    cursor: crosshair;
  }

  &-bottom {
    top: auto;
    left: 50%;
    bottom: 0;
    transform: translate(-50%, 50%);
  }

  &-top {
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  &-left {
    top: 50%;
    left: 0;
    transform: translate(-50%, -50%);
  }

  &-right {
    top: 50%;
    right: 0;
    transform: translate(50%, -50%);
  }
}

.react-flow__edgeupdater {
  cursor: move;
  pointer-events: all;
}

.react-flow__panel {
  position: absolute;
  z-index: 5;
  margin: 15px;

  &.top {
    top: 0;
  }

  &.bottom {
    bottom: 0;
  }

  &.left {
    left: 0;
  }

  &.right {
    right: 0;
  }

  &.center {
    left: 50%;
    transform: translateX(-50%);
  }
}

.react-flow__attribution {
  font-size: 10px;
  background: var(--xy-attribution-background-color, var(--xy-attribution-background-color-default));
  padding: 2px 3px;
  margin: 0;

  a {
    text-decoration: none;
    color: #999;
  }
}

@keyframes dashdraw {
  from {
    stroke-dashoffset: 10;
  }
}

.react-flow__edgelabel-renderer {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
  user-select: none;
  left: 0;
  top: 0;
}

.react-flow__viewport-portal {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  user-select: none;
}

.react-flow__minimap {
  background: var(
    --xy-minimap-background-color-props,
    var(--xy-minimap-background-color, var(--xy-minimap-background-color-default))
  );

  &-svg {
    display: block;
  }

  &-mask {
    fill: var(
      --xy-minimap-mask-background-color-props,
      var(--xy-minimap-mask-background-color, var(--xy-minimap-mask-background-color-default))
    );
    stroke: var(
      --xy-minimap-mask-stroke-color-props,
      var(--xy-minimap-mask-stroke-color, var(--xy-minimap-mask-stroke-color-default))
    );
    stroke-width: var(
      --xy-minimap-mask-stroke-width-props,
      var(--xy-minimap-mask-stroke-width, var(--xy-minimap-mask-stroke-width-default))
    );
  }

  &-node {
    fill: var(
      --xy-minimap-node-background-color-props,
      var(--xy-minimap-node-background-color, var(--xy-minimap-node-background-color-default))
    );
    stroke: var(
      --xy-minimap-node-stroke-color-props,
      var(--xy-minimap-node-stroke-color, var(--xy-minimap-node-stroke-color-default))
    );
    stroke-width: var(
      --xy-minimap-node-stroke-width-props,
      var(--xy-minimap-node-stroke-width, var(--xy-minimap-node-stroke-width-default))
    );
  }
}

.react-flow__background {
  pointer-events: none;
  z-index: -1;
}

.react-flow__background-pattern {
  &.dots {
    fill: var(
      --xy-background-pattern-color-props,
      var(--xy-background-pattern-color, var(--xy-background-pattern-dots-color-default))
    );
  }

  &.lines {
    stroke: var(
      --xy-background-pattern-color-props,
      var(--xy-background-pattern-color, var(--xy-background-pattern-lines-color-default))
    );
  }

  &.cross {
    stroke: var(
      --xy-background-pattern-color-props,
      var(--xy-background-pattern-color, var(--xy-background-pattern-cross-color-default))
    );
  }
}

.react-flow__controls {
  display: flex;
  flex-direction: column;

  &.horizontal {
    flex-direction: row;
  }

  &-button {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 26px;
    width: 26px;
    padding: 4px;

    svg {
      width: 100%;
      max-width: 12px;
      max-height: 12px;
      fill: currentColor;
    }
  }
}



.react-flow {
  --xy-node-color-default: inherit;
  --xy-node-border-default: 1px solid #1a192b;
  --xy-node-background-color-default: #fff;
  --xy-node-group-background-color-default: rgba(240, 240, 240, 0.25);
  --xy-node-boxshadow-hover-default: 0 1px 4px 1px rgba(0, 0, 0, 0.08);
  --xy-node-boxshadow-selected-default: 0 0 0 0.5px #1a192b;
  --xy-node-border-radius-default: 3px;

  --xy-handle-background-color-default: #1a192b;
  --xy-handle-border-color-default: #fff;

  --xy-selection-background-color-default: rgba(0, 89, 220, 0.08);
  --xy-selection-border-default: 1px dotted rgba(0, 89, 220, 0.8);

  --xy-controls-button-background-color-default: #fefefe;
  --xy-controls-button-background-color-hover-default: #f4f4f4;
  --xy-controls-button-color-default: inherit;
  --xy-controls-button-color-hover-default: inherit;
  --xy-controls-button-border-color-default: #eee;
  --xy-controls-box-shadow-default: 0 0 2px 1px rgba(0, 0, 0, 0.08);

  --xy-edge-label-background-color-default: #ffffff;
  --xy-edge-label-color-default: inherit;
}

.react-flow.dark {
  --xy-node-color-default: #f8f8f8;
  --xy-node-border-default: 1px solid #3c3c3c;
  --xy-node-background-color-default: #1e1e1e;
  --xy-node-group-background-color-default: rgba(240, 240, 240, 0.25);
  --xy-node-boxshadow-hover-default: 0 1px 4px 1px rgba(255, 255, 255, 0.08);
  --xy-node-boxshadow-selected-default: 0 0 0 0.5px #999;

  --xy-handle-background-color-default: #bebebe;
  --xy-handle-border-color-default: #1e1e1e;

  --xy-selection-background-color-default: rgba(200, 200, 220, 0.08);
  --xy-selection-border-default: 1px dotted rgba(200, 200, 220, 0.8);

  --xy-controls-button-background-color-default: #2b2b2b;
  --xy-controls-button-background-color-hover-default: #3e3e3e;
  --xy-controls-button-color-default: #f8f8f8;
  --xy-controls-button-color-hover-default: #fff;
  --xy-controls-button-border-color-default: #5b5b5b;
  --xy-controls-box-shadow-default: 0 0 2px 1px rgba(0, 0, 0, 0.08);

  --xy-edge-label-background-color-default: #141414;
  --xy-edge-label-color-default: #f8f8f8;
}

.react-flow__edge {
  &.updating {
    .react-flow__edge-path {
      stroke: #777;
    }
  }

  &-text {
    font-size: 10px;
  }
}

.react-flow__node.selectable {
  &:focus,
  &:focus-visible {
    outline: none;
  }
}

.react-flow__node-input,
.react-flow__node-default,
.react-flow__node-output,
.react-flow__node-group {
  padding: 10px;
  border-radius: var(--xy-node-border-radius, var(--xy-node-border-radius-default));
  width: 150px;
  font-size: 12px;
  color: var(--xy-node-color, var(--xy-node-color-default));
  text-align: center;
  border: var(--xy-node-border, var(--xy-node-border-default));
  background-color: var(--xy-node-background-color, var(--xy-node-background-color-default));

  &.selectable {
    &:hover {
      box-shadow: var(--xy-node-boxshadow-hover, var(--xy-node-boxshadow-hover-default));
    }

    &.selected,
    &:focus,
    &:focus-visible {
      box-shadow: var(--xy-node-boxshadow-selected, var(--xy-node-boxshadow-selected-default));
    }
  }
}

.react-flow__node-group {
  background-color: var(--xy-node-group-background-color, var(--xy-node-group-background-color-default));
}

.react-flow__nodesselection-rect,
.react-flow__selection {
  background: var(--xy-selection-background-color, var(--xy-selection-background-color-default));
  border: var(--xy-selection-border, var(--xy-selection-border-default));

  &:focus,
  &:focus-visible {
    outline: none;
  }
}

.react-flow__handle {
  width: 6px;
  height: 6px;
  background-color: var(--xy-handle-background-color, var(--xy-handle-background-color-default));
  border: 1px solid var(--xy-handle-border-color, var(--xy-handle-border-color-default));
  border-radius: 100%;
}

.react-flow__controls {
  box-shadow: var(--xy-controls-box-shadow, var(--xy-controls-box-shadow-default));

  &-button {
    border: none;
    background: var(--xy-controls-button-background-color, var(--xy-controls-button-background-color-default));
    border-bottom: 1px solid
      var(
        --xy-controls-button-border-color-props,
        var(--xy-controls-button-border-color, var(--xy-controls-button-border-color-default))
      );
    color: var(
      --xy-controls-button-color-props,
      var(--xy-controls-button-color, var(--xy-controls-button-color-default))
    );
    cursor: pointer;
    user-select: none;

    &:hover {
      background: var(
        --xy-controls-button-background-color-hover-props,
        var(--xy-controls-button-background-color-hover, var(--xy-controls-button-background-color-hover-default))
      );
      color: var(
        --xy-controls-button-color-hover-props,
        var(--xy-controls-button-color-hover, var(--xy-controls-button-color-hover-default))
      );
    }

    &:disabled {
      pointer-events: none;

      svg {
        fill-opacity: 0.4;
      }
    }
  }

  &-button:last-child {
    border-bottom: none;
  }
}



.react-flow {
  --xy-resize-background-color-default: #3367d9;
}

.react-flow__resize-control {
  position: absolute;
}

.react-flow__resize-control.left,
.react-flow__resize-control.right {
  cursor: ew-resize;
}

.react-flow__resize-control.top,
.react-flow__resize-control.bottom {
  cursor: ns-resize;
}

.react-flow__resize-control.top.left,
.react-flow__resize-control.bottom.right {
  cursor: nwse-resize;
}

.react-flow__resize-control.bottom.left,
.react-flow__resize-control.top.right {
  cursor: nesw-resize;
}

/* handle styles */
.react-flow__resize-control.handle {
  width: 4px;
  height: 4px;
  border: 1px solid #fff;
  border-radius: 1px;
  background-color: var(--xy-resize-background-color, var(--xy-resize-background-color-default));
  transform: translate(-50%, -50%);
}

.react-flow__resize-control.handle.left {
  left: 0;
  top: 50%;
}
.react-flow__resize-control.handle.right {
  left: 100%;
  top: 50%;
}
.react-flow__resize-control.handle.top {
  left: 50%;
  top: 0;
}
.react-flow__resize-control.handle.bottom {
  left: 50%;
  top: 100%;
}
.react-flow__resize-control.handle.top.left {
  left: 0;
}
.react-flow__resize-control.handle.bottom.left {
  left: 0;
}
.react-flow__resize-control.handle.top.right {
    left: 100%;
}
.react-flow__resize-control.handle.bottom.right {
    left: 100%;
}

/* line styles */
.react-flow__resize-control.line {
    border-color: var(--xy-resize-background-color, var(--xy-resize-background-color-default));
    border-width: 0;
    border-style: solid;
}

.react-flow__resize-control.line.left,
.react-flow__resize-control.line.right {
    width: 1px;
    transform: translate(-50%, 0);
    top: 0;
    height: 100%;
}

.react-flow__resize-control.line.left {
    left: 0;
    border-left-width: 1px;
}

.react-flow__resize-control.line.right {
    left: 100%;
    border-right-width: 1px;
}

.react-flow__resize-control.line.top,
.react-flow__resize-control.line.bottom {
    height: 1px;
    transform: translate(0, -50%);
    left: 0;
    width: 100%;
}

.react-flow__resize-control.line.top {
    top: 0;
    border-top-width: 1px;
}

.react-flow__resize-control.line.bottom {
    border-bottom-width: 1px;
    top: 100%;
}

ReactFlow

.react-flow__container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}
.react-flow__container svg {
    overflow: visible;
    position: absolute;
    pointer-events: none;
}
.react-flow__pane {
    z-index: 1;
    cursor: -webkit-grab;
    cursor: grab;
}
.react-flow__pane.selection {
    cursor: pointer;
}
.react-flow__pane.dragging {
    cursor: -webkit-grabbing;
    cursor: grabbing;
}
.react-flow__viewport {
    transform-origin: 0 0;
    z-index: 2;
    pointer-events: none;
}
.react-flow__renderer {
    z-index: 4;
}
.react-flow__selection {
    z-index: 6;
}
.react-flow__nodesselection-rect:focus,
.react-flow__nodesselection-rect:focus-visible {
    outline: none;
}
.react-flow .react-flow__edges {
    pointer-events: none;
    overflow: visible;
}
.react-flow__edge-path,
.react-flow__connection-path {
    stroke: #b1b1b7;
    stroke-width: 1;
    fill: none;
}
.react-flow__edge {
    pointer-events: visibleStroke;
    cursor: pointer;
}
.react-flow__edge.animated path {
    stroke-dasharray: 5;
    -webkit-animation: dashdraw 0.5s linear infinite;
    animation: dashdraw 0.5s linear infinite;
}
.react-flow__edge.animated path.react-flow__edge-interaction {
    stroke-dasharray: none;
    -webkit-animation: none;
    animation: none;
}
.react-flow__edge.inactive {
    pointer-events: none;
}
.react-flow__edge.selected,
.react-flow__edge:focus,
.react-flow__edge:focus-visible {
    outline: none;
}
.react-flow__edge.selected .react-flow__edge-path,
.react-flow__edge:focus .react-flow__edge-path,
.react-flow__edge:focus-visible .react-flow__edge-path {
    stroke: #555;
}
.react-flow__edge-textwrapper {
    pointer-events: all;
}
.react-flow__edge-textbg {
    fill: white;
}
.react-flow__edge .react-flow__edge-text {
    pointer-events: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
}
.react-flow__connection {
    pointer-events: none;
}
.react-flow__connection.animated {
    stroke-dasharray: 5;
    -webkit-animation: dashdraw 0.5s linear infinite;
    animation: dashdraw 0.5s linear infinite;
}
.react-flow__connectionline {
    z-index: 1001;
}
.react-flow__nodes {
    pointer-events: none;
    transform-origin: 0 0;
}
.react-flow__node {
    position: absolute;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    pointer-events: all;
    transform-origin: 0 0;
    box-sizing: border-box;
    cursor: -webkit-grab;
    cursor: grab;
}
.react-flow__node.dragging {
    cursor: -webkit-grabbing;
    cursor: grabbing;
}
.react-flow__nodesselection {
    z-index: 3;
    transform-origin: left top;
    pointer-events: none;
}
.react-flow__nodesselection-rect {
    position: absolute;
    pointer-events: all;
    cursor: -webkit-grab;
    cursor: grab;
}
.react-flow__handle {
    position: absolute;
    pointer-events: none;
    min-width: 5px;
    min-height: 5px;
    width: 6px;
    height: 6px;
    background: #1a192b;
    border: 1px solid white;
    border-radius: 100%;
}
.react-flow__handle.connectable {
    pointer-events: all;
    cursor: crosshair;
}
.react-flow__handle-bottom {
    top: auto;
    left: 50%;
    bottom: -4px;
    transform: translate(-50%, 0);
}
.react-flow__handle-top {
    left: 50%;
    top: -4px;
    transform: translate(-50%, 0);
}
.react-flow__handle-left {
    top: 50%;
    left: -4px;
    transform: translate(0, -50%);
}
.react-flow__handle-right {
    right: -4px;
    top: 50%;
    transform: translate(0, -50%);
}
.react-flow__edgeupdater {
    cursor: move;
    pointer-events: all;
}
.react-flow__panel {
    position: absolute;
    z-index: 5;
    margin: 15px;
}
.react-flow__panel.top {
    top: 0;
}
.react-flow__panel.bottom {
    bottom: 0;
}
.react-flow__panel.left {
    left: 0;
}
.react-flow__panel.right {
    right: 0;
}
.react-flow__panel.center {
    left: 50%;
    transform: translateX(-50%);
}
.react-flow__attribution {
    font-size: 10px;
    background: rgba(255, 255, 255, 0.5);
    padding: 2px 3px;
    margin: 0;
}
.react-flow__attribution a {
    text-decoration: none;
    color: #999;
}
@-webkit-keyframes dashdraw {
    from {
        stroke-dashoffset: 10;
    }
}
@keyframes dashdraw {
    from {
        stroke-dashoffset: 10;
    }
}
.react-flow__edgelabel-renderer {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}
.react-flow__edge.updating .react-flow__edge-path {
    stroke: #777;
}
.react-flow__edge-text {
    font-size: 10px;
}
.react-flow__node.selectable:focus,
.react-flow__node.selectable:focus-visible {
    outline: none;
}
.react-flow__node-default,
.react-flow__node-input,
.react-flow__node-output,
.react-flow__node-group {
    padding: 10px;
    border-radius: 3px;
    width: 150px;
    font-size: 12px;
    color: #222;
    text-align: center;
    border-width: 1px;
    border-style: solid;
    border-color: #1a192b;
    background-color: white;
}
.react-flow__node-default.selectable:hover, .react-flow__node-input.selectable:hover, .react-flow__node-output.selectable:hover, .react-flow__node-group.selectable:hover {
    box-shadow: 0 1px 4px 1px rgba(0, 0, 0, 0.08);
}
.react-flow__node-default.selectable.selected,
.react-flow__node-default.selectable:focus,
.react-flow__node-default.selectable:focus-visible,
.react-flow__node-input.selectable.selected,
.react-flow__node-input.selectable:focus,
.react-flow__node-input.selectable:focus-visible,
.react-flow__node-output.selectable.selected,
.react-flow__node-output.selectable:focus,
.react-flow__node-output.selectable:focus-visible,
.react-flow__node-group.selectable.selected,
.react-flow__node-group.selectable:focus,
.react-flow__node-group.selectable:focus-visible {
    box-shadow: 0 0 0 0.5px #1a192b;
    outline: 1px solid rgba(0, 89, 220, 0.8);
}
.react-flow__node-group {
    background-color: rgba(240, 240, 240, 0.25);
}
.react-flow__nodesselection-rect,
.react-flow__selection {
    background: rgba(0, 89, 220, 0.08);
    border: 1px dotted rgba(0, 89, 220, 0.8);
}
.react-flow__nodesselection-rect:focus,
.react-flow__nodesselection-rect:focus-visible,
.react-flow__selection:focus,
.react-flow__selection:focus-visible {
    outline: none;
}

Overrides

.react-flow__background {
    background-color: hsl(var(--background-hs), 98%);
}
.react-flow .react-flow__background pattern {
    stroke: var(--dots-hex);
}
.react-flow .react-flow__handle {
    --size: .5em;
    background: hsl(var(--background-hs), 60%);
    border-width: .1em;
    box-shadow: 0 0.1em 0.2em hsla(0, 30%, 10%, 0.2);
    height: var(--size);
    width: var(--size);
}
.react-flow .react-flow__node-input.selectable,
.react-flow .react-flow__node-default.selectable,
.react-flow .react-flow__node div:first-child {
    border: none !important;
    box-shadow: 0 0.1em 0.2em hsla(0, 30%, 10%, 0.2);
}

Syntax highlighting

.org-function-name {
    color: hsl(var(--function-name-hsl));
}

.org-variable-name {
    color: hsl(var(--variable-name-hsl));
}

.org-type {
    color: hsl(var(--type-hsl));
}

.org-comment,
.org-comment-delimiter,
.org-string {
    color: hsl(var(--string-hsl));
}

.org-constant {
    color: hsl(var(--constant-hsl));
}

.org-clojure-keyword {
    color: hsl(var(--keyword-hsl));
}
a {
    color: hsl(var(--primary-hsl));
}

.outline-text-2 {
    max-width: 50em;
}

.example {
    display: grid;
    grid-template-columns: [documentation] 1fr [example] 1fr;
    grid-auto-flow: row;
    gap: 2.5vw;
}
.outline-3:nth-child(odd) .example {
    grid-template-columns: [example] 1fr [documentation] 1fr;
}
.example > :not(.output) {
    grid-column-start: documentation;
}
.output {
    background-color: hsl(var(--background-hsl));
    grid-column-start: example;
    grid-row: 1/10;
    min-height: 10vh;
    max-height: min(800px, 90vh);
    width: 100%;
    position: sticky;
    top: 5vh;
    overflow: hidden;
}

@media only screen and (max-width: 1024px) {
    .example {
        display: block;
    }
}

.org-src-container {
    overflow: auto;
}
.src {
    color: hsl(var(--face-hs), 70%);
    font-size: 1.3rem;
    line-height: 1.5;
}

/* The version-number */
.src-text {
    background: hsl(var(--identity-hsl));
    border-radius: .2em;
    color: white;
    display: inline-block;
    font-size: 1.5em;
    padding: .2em .5em;
}

.todo {
    color: hsl(var(--todo-hsl));
    font-size: 1.35rem;
    font-weight: 100;
}

Example specific

[data-id="explanation"] {
    background: transparent;
    border: none;
    color: gray;
    font-size: 12px;
}
[data-id="explanation"] * {
    display: none;
}

[data-src=stress] .react-flow__edge.react-flow__edge-smoothstep.animated path {
    stroke: hsl(150, 60%, 65%);
    stroke-linecap: round;
}
[data-src=stress] .react-flow__edge.react-flow__edge-smoothstep.animated.selected path {
    stroke-width: 3;
}
.react-flow__node-sum-node {
    background: hsl(241, 84%, 65%);
    border-radius: 2em;
    color: white;
    min-width: 10em;
    padding: 0 1.5em;
}
.react-flow__node-sum-node pre {
    text-align: center;
}
.react-flow__node-color-node {
    background: transparent;
    border: none;
}
.color-picker {
    --radius: 0.5em;
    --size: 2.5em;
    -webkit-appearance: none;
    border-radius: var(--radius);
    border: none;
    height: var(--size);
    margin: 0;
    margin-top: .45em;
    outline: none;
    padding: 0;
    width: var(--size);
}
.color-picker::-moz-color-swatch, 
.color-picker::-webkit-color-swatch,
.color-picker::-webkit-color-swatch-wrapper {
    border: none;
    border-radius: var(--radius);
    padding: 0;
}

.node-palette {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    width: 100%;
    margin: 0;
    padding: 1em;
    top: 1em;
    left: 1em;
}
.node-palette .node {
    background: white;
    border-radius: 0.5em;
    box-shadow: 0 0.1em 0.2em hsla(0, 30%, 10%, 0.2);
    cursor: grab;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 15em;
    padding: 1em;
}

Actions

We observe the code-blocks to see when it’s in the viewport. When a code-block is visible, the code associated will be initialized.

const main = (w, d) => {
    const examples = [].slice.call(d.querySelectorAll('[data-src]'));
    examples.map(example => {
        const observer = new IntersectionObserver(observed => {
            const exampleName = example.getAttribute('data-src');
            if (observed[0].isIntersecting) {
                w[`${exampleName}`].core.init(example);
            } else {
                w[`${exampleName}`].core.unload(example);
            }
        });
        observer.observe(example);
    }); 
}

main(window, document);