149 lines
3.8 KiB
Svelte
149 lines
3.8 KiB
Svelte
<style lang="scss">
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/* always applicable */
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:global(body) {
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counter-reset: sidenote;
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}
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.counter {
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counter-increment: sidenote;
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color: #444;
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&:after {
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font-size: 0.75rem;
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position: relative;
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bottom: 0.3rem;
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}
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}
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.sidenote {
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font-size: 0.8rem;
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&:before {
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content: counter(sidenote) " ";
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position: relative;
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font-size: 0.75rem;
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bottom: 0.2rem;
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}
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}
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.sidenote-toggle {
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display: none;
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}
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/* desktop display */
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@media(min-width: 70em) {
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.counter:after {
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content: counter(sidenote);
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}
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.sidenote {
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position: absolute;
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left: calc(50vw + var(--content-width) / 2 + 1rem);
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max-width: 12rem;
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hyphens: auto;
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}
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}
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/* mobile display */
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@media (max-width: 70em) {
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.counter:after {
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content: "[" counter(sidenote) "]";
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}
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.counter:hover:after {
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color: #000;
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cursor: pointer;
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}
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.sidenote {
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box-sizing: border-box;
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position: fixed;
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left: 0;
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bottom: 0;
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width: 100vw;
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padding-top: 1rem;
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padding-bottom: 1rem;
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padding-right: 2rem;
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background-color: #fff;
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box-shadow: 0 -2px 4px -1px rgba(0, 0, 0, 0.06), 0 -2px 12px -2px rgba(0, 0, 0, 0.1);
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display: none;
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}
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.sidenote-toggle:checked + .sidenote {
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display: block;
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}
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}
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/* slight tweaks for in between state */
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@media (min-width: 52.5em) and (max-width: 70em) {
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.sidenote {
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padding-left: calc(50vw - 19rem);
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}
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}
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@media (max-width: 52.5em) {
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.sidenote {
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padding-left: 2rem;
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}
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}
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</style>
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<script context="module">
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import { browser } from '$app/env';
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var sidenotes = {};
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function tileNotes() {
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// find and fix collisions between sidenotes
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const minNoteGap = 15;
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var prevBottom = 0;
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Object.values(sidenotes).forEach(s => {
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if (window.getComputedStyle(s.note).position === 'fixed') {
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// fixed position means we are in mobile territory,
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// so get rid of the overflow stuff
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s.note.style.top = '';
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return;
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}
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let labelTop = s.label.getBoundingClientRect().y + window.scrollY;
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let noteHeight = s.note.getBoundingClientRect().height;
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if (labelTop < prevBottom + minNoteGap) {
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// there is a collision
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s.note.style.top = `${prevBottom + minNoteGap}px`;
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prevBottom = prevBottom + minNoteGap + noteHeight;
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}
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else {
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// no collision, but these don't quite match otherwise
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s.note.style.top = `${labelTop}px`;
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prevBottom = labelTop + noteHeight;
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}
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})
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}
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if (browser) {
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window.addEventListener('resize', tileNotes);
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}
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</script>
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<script>
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import { onMount } from 'svelte';
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const id = Math.random().toString().slice(2);
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sidenotes[id] = {mounted: false};
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let label;
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let note;
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onMount(async () => {
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sidenotes[id] = {mounted: true, label, note};
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if (Object.values(sidenotes).every(n => n.mounted)) {
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// all sidenotes have been mounted, now we can fix the collisions
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tileNotes();
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}
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return () => sidenotes[id].mounted = false;
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});
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</script>
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<label bind:this={label} for={id} class="counter"></label>
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<input type="checkbox" class="sidenote-toggle" {id}/>
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<span bind:this={note} class="sidenote">
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<slot></slot>
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</span> |