mirror of
https://bjh21.me.uk/bedstead/.git
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0ecf8f3ebf
The usual focus ring in Firefox and Chromium appears at the same stacking level as the element it's attached to. This means that it's hidden by elements after it in the document, including pixels below it and to its right. Fiddling with the z-index of the focussed pixel helps with this.
255 lines
9.1 KiB
HTML
255 lines
9.1 KiB
HTML
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-GB" xml:lang="en-GB">
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<head>
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<!-- SPDX-License-Identifier: CC0-1.0 -->
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<link rel="stylesheet" href="bedstead.css" type="text/css" />
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<title>Bedstead editor test</title>
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<link rel="icon" href="icon-16.png" type="image/png" sizes="16x16" />
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<link rel="icon" href="icon-32.png" type="image/png" sizes="32x32" />
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<link rel="icon" href="icon-64.png" type="image/png" sizes="64x64" />
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<style>
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:root {
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--pix: 7vmin;
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}
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body {
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max-width: none;
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}
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#inout {
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display: flex;
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}
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#inpane, #outpane {
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padding-left: var(--pix);
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padding-top: var(--pix);
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width: calc(5 * var(--pix));
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height: calc(9 * var(--pix));
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}
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#pixels {
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border-spacing: 0;
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}
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#pixels td {
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padding: 0;
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line-height: 0;
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}
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#pixels input {
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appearance: none;
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color: inherit;
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margin: 0;
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width: var(--pix);
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height: var(--pix);
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border: 1px solid;
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}
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#pixels input:active {
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border: 3px solid;
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}
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#pixels input:checked {
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background: currentColor;
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}
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#pixels input:checked:active {
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border: 0;
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margin: 3px;
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width: calc(var(--pix) - 6px);
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height: calc(var(--pix) - 6px);
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}
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#pixels input:focus-visible {
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position: relative;
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z-index: 1;
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}
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</style>
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<!-- Script is async rather than deferred because Chromium can't
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handle deferred scripts in XHTML.
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https://issues.chromium.org/issues/40518469
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And it's not a module because Safari can't handle that. -->
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<script async="async"><![CDATA[
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"use strict";
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var Bedstead;
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function update_glyph(c_update_needed) {
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var args = [];
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var cstr = "";
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for (var row of document.querySelector('#pixels').rows) {
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var arg = 0;
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for (var pixel of row.querySelectorAll('input')) {
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arg *= 2;
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if (pixel.checked) arg += 1
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}
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args.push(arg.toString());
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cstr += "\\" + arg.toString(8).padStart(2, "0");
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}
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if (c_update_needed)
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document.getElementById("c").value = ` {"${cstr}", U() },`;
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Bedstead({
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arguments: args,
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print: function(charstring) {
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document.getElementById("charstring").textContent = charstring;
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document.getElementById("rendered")
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.setAttribute("d", charstring
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.replaceAll(/<!--(?:[^-]|-[^-])*-->/g, "")
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.replace(/^.* [hv]stem /, "")
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.replace(/^cntrmask [01]* /, "")
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.replaceAll(/(\S+ +\S+ +)rmoveto/g, "m$1")
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.replaceAll(/ rlineto/g, "")
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.replace(/ endchar/, ""));
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}
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});
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}
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function from_c(c) {
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var re = /[0-7]+/g;
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document.querySelector('#inpane').reset();
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for (var row of document.querySelector('#pixels').rows) {
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var match = re.exec(c);
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if (match == null) break;
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var rowbits = Number.parseInt(match[0], 8);
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for (var pixel
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of Array.from(row.querySelectorAll('input')).reverse()) {
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pixel.checked = (rowbits & 1 != 0);
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rowbits >>= 1;
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}
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}
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update_glyph();
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}
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function key_handler(e) {
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var dx = 0, dy = 0;
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switch (e.key) {
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case "ArrowLeft": dx = -1; break;
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case "ArrowRight": dx = +1; break;
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case "ArrowUp": dy = -1; break;
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case "ArrowDown": dy = +1; break;
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default: return;
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}
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var x = this.closest("td").cellIndex;
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var y = this.closest("tr").rowIndex;
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x = (x + dx + 5) % 5;
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y = (y + dy + 9) % 9;
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var target = document.querySelector('#pixels').rows[y].cells[x]
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.querySelector('input');
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target.focus();
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e.preventDefault();
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}
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function init() {
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for (var e of document.querySelectorAll('#pixels input')) {
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e.onchange = e => update_glyph(true);
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e.onkeydown = key_handler;
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}
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document.querySelector('#c').oninput = function(e) {
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from_c(this.value);
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update_glyph(false);
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};
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update_glyph(true);
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}
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import("./bedstead.js").then((module) => {
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Bedstead = module.default;
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// This script is loaded asynchronously, so make sure the DOM is
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// loaded before touching it.
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if (document.readyState === "loading")
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document.addEventListener("DOMContentLoaded", init);
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else
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init();
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});
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]]>
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</script>
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</head>
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<body>
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<div id="inout">
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<form id="inpane">
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<table id="pixels">
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<tr>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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</tr>
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<tr>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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</tr>
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<tr>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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</tr>
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<tr>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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</tr>
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<tr>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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</tr>
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<tr>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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</tr>
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<tr>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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</tr>
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<tr>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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</tr>
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<tr>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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<td><input type="checkbox"/></td>
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</tr>
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</table>
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</form>
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<div id="outpane">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="100 100 500 900">
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<g transform="scale(1,-1) translate(0,-800)">
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<path id="rendered" fill="currentColor"/>
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</g>
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</svg>
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</div>
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</div>
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<p><input id="c" type="text" size="39"/></p>
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<p><code id="charstring"></code></p>
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<div class="smallprint">
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<p>This editor contains code from Emscripten and musl libc under
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the following licence:</p>
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<p>Copyright 2010-2022 The Emscripten Authors</p>
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<p>Copyright © 2005-2020 Rich Felker, et al.</p>
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<p>Copyright (C) 2011 by Valentin Ochs</p>
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<p>Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:</p>
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<p>The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.</p>
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<p>THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</p>
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</div>
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</body>
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</html>
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