mirror of
https://github.com/osmarks/mycorrhiza.git
synced 2024-10-30 03:36:16 +00:00
376 lines
14 KiB
JavaScript
376 lines
14 KiB
JavaScript
(() => {
|
||
const $ = document.querySelector.bind(document);
|
||
const $$ = (...args) => Array.prototype.slice.call(document.querySelectorAll(...args));
|
||
|
||
const isMac = /Macintosh/.test(window.navigator.userAgent);
|
||
|
||
function keyEventToShortcut(event) {
|
||
let elideShift = event.key.toUpperCase() === event.key && event.shiftKey;
|
||
return (event.ctrlKey ? 'Ctrl+' : '') +
|
||
(event.altKey ? 'Alt+' : '') +
|
||
(event.metaKey ? 'Meta+' : '') +
|
||
(!elideShift && event.shiftKey ? 'Shift+' : '') +
|
||
(event.key === ',' ? 'Comma' : event.key === ' ' ? 'Space' : event.key);
|
||
}
|
||
|
||
function prettifyShortcut(shortcut) {
|
||
let keys = shortcut.split('+');
|
||
|
||
if (isMac) {
|
||
let cmdIdx = keys.indexOf('Meta');
|
||
if (cmdIdx !== -1 && keys.length - cmdIdx > 2) {
|
||
let tmp = keys[cmdIdx + 1];
|
||
keys[cmdIdx + 1] = 'Meta';
|
||
keys[cmdIdx] = tmp;
|
||
}
|
||
}
|
||
|
||
let lastKey = keys[keys.length - 1];
|
||
if (!keys.includes('Shift') && lastKey.toUpperCase() === lastKey && lastKey.toLowerCase() !== lastKey) {
|
||
keys.splice(keys.length - 1, 0, 'Shift');
|
||
}
|
||
|
||
for (let i = 0; i < keys.length; i++) {
|
||
if (isMac) {
|
||
switch (keys[i]) {
|
||
case 'Ctrl': keys[i] = '⌃'; break;
|
||
case 'Alt': keys[i] = '⌥'; break;
|
||
case 'Shift': keys[i] = '⇧'; break;
|
||
case 'Meta': keys[i] = '⌘'; break;
|
||
}
|
||
}
|
||
|
||
if (i === keys.length - 1 && i > 0 && keys[i].length === 1) {
|
||
keys[i] = keys[i].toUpperCase();
|
||
}
|
||
|
||
switch (keys[i]) {
|
||
case 'ArrowLeft': keys[i] = '←'; break;
|
||
case 'ArrowRight': keys[i] = '→'; break;
|
||
case 'ArrowTop': keys[i] = '↑'; break;
|
||
case 'ArrowBottom': keys[i] = '↓'; break;
|
||
case 'Comma': keys[i] = ','; break;
|
||
case 'Enter': keys[i] = '↩'; break;
|
||
case ' ': keys[i] = 'Space'; break;
|
||
}
|
||
|
||
keys[i] = `<kbd>${keys[i]}</kbd>`;
|
||
}
|
||
|
||
return keys.join(isMac ? '' : ' + ');
|
||
}
|
||
|
||
function isTextField(element) {
|
||
let name = element.nodeName.toLowerCase();
|
||
return name === 'textarea' ||
|
||
name === 'select' ||
|
||
(name === 'input' && !['submit', 'reset', 'checkbox', 'radio'].includes(element.type)) ||
|
||
element.isContentEditable;
|
||
}
|
||
|
||
let notTextField = event => !(event.target instanceof Node && isTextField(event.target));
|
||
|
||
let allShortcuts = [];
|
||
let shortcutsGroup = null;
|
||
|
||
class ShortcutHandler {
|
||
constructor(element, filter = () => true) {
|
||
this.element = element;
|
||
this.map = {};
|
||
this.active = this.map;
|
||
this.filter = filter;
|
||
this.timeout = null;
|
||
|
||
this.handleKeyDown = this.handleKeyDown.bind(this);
|
||
this.resetActive = this.resetActive.bind(this);
|
||
this.addEventListeners();
|
||
}
|
||
|
||
addEventListeners() {
|
||
this.element.addEventListener('keydown', this.handleKeyDown);
|
||
}
|
||
|
||
add(text, action, description = null) {
|
||
let shortcuts = text.split(',').map(shortcut => shortcut.trim().split(' '));
|
||
|
||
if (shortcutsGroup) {
|
||
shortcutsGroup.push({
|
||
action,
|
||
shortcut: text,
|
||
description,
|
||
})
|
||
}
|
||
|
||
for (let shortcut of shortcuts) {
|
||
let node = this.map;
|
||
for (let key of shortcut) {
|
||
if (!node[key]) {
|
||
node[key] = {};
|
||
}
|
||
node = node[key];
|
||
if (node.action) {
|
||
delete node.action;
|
||
delete node.shortcut;
|
||
delete node.description;
|
||
}
|
||
}
|
||
|
||
node.action = action;
|
||
node.shortcut = shortcut;
|
||
node.description = description;
|
||
}
|
||
}
|
||
|
||
groupStart() {
|
||
shortcutsGroup = [];
|
||
}
|
||
|
||
groupEnd() {
|
||
if (shortcutsGroup && shortcutsGroup.length) allShortcuts.push(shortcutsGroup);
|
||
shortcutsGroup = null;
|
||
}
|
||
|
||
fakeItem(shortcut, description = null) {
|
||
let list = shortcutsGroup || allShortcuts;
|
||
list.push({
|
||
shortcut: description ? shortcut : null,
|
||
description: description || shortcut,
|
||
});
|
||
}
|
||
|
||
handleKeyDown(event) {
|
||
if (event.defaultPrevented) return;
|
||
if (['Control', 'Alt', 'Shift', 'Meta'].includes(event.key)) return;
|
||
if (!this.filter(event)) return;
|
||
|
||
let shortcut = keyEventToShortcut(event);
|
||
|
||
if (!this.active[shortcut]) {
|
||
this.resetActive();
|
||
return;
|
||
}
|
||
|
||
this.active = this.active[shortcut];
|
||
if (this.active.action) {
|
||
this.active.action(event);
|
||
event.preventDefault();
|
||
this.resetActive();
|
||
return;
|
||
}
|
||
|
||
if (this.timeout) clearTimeout(this.timeout);
|
||
this.timeout = window.setTimeout(this.resetActive, 1500);
|
||
}
|
||
|
||
resetActive() {
|
||
this.active = this.map;
|
||
if (this.timeout) {
|
||
clearTimeout(this.timeout)
|
||
this.timeout = null;
|
||
}
|
||
}
|
||
}
|
||
|
||
function bindElementFactory(handler) {
|
||
return (shortcut, element, ...other) => {
|
||
element = typeof element === 'string' ? $(element) : element;
|
||
if (!element) return;
|
||
handler.add(shortcut, () => {
|
||
if (isTextField(element)) {
|
||
element.focus();
|
||
} else {
|
||
element.click();
|
||
}
|
||
}, ...other);
|
||
};
|
||
}
|
||
|
||
function bindLinkFactory(handler) {
|
||
return (shortcut, link, ...other) => handler.add(shortcut, () => window.location.href = link, ...other);
|
||
}
|
||
|
||
let prevActiveElement = null;
|
||
let shortcutsListDialog = null;
|
||
|
||
function openShortcutsReference() {
|
||
if (!shortcutsListDialog) {
|
||
let wrap = document.createElement('div');
|
||
wrap.className = 'dialog-wrap';
|
||
shortcutsListDialog = wrap;
|
||
|
||
let dialog = document.createElement('div');
|
||
dialog.className = 'dialog shortcuts-modal';
|
||
dialog.tabIndex = 0;
|
||
wrap.appendChild(dialog);
|
||
|
||
let dialogHeader = document.createElement('div');
|
||
dialogHeader.className = 'dialog__header';
|
||
dialog.appendChild(dialogHeader);
|
||
|
||
let title = document.createElement('h1');
|
||
title.className = 'dialog__title';
|
||
title.textContent = 'List of shortcuts';
|
||
dialogHeader.appendChild(title);
|
||
|
||
let closeButton = document.createElement('button');
|
||
closeButton.className = 'dialog__close-button';
|
||
closeButton.setAttribute('aria-label', 'Close this dialog');
|
||
dialogHeader.appendChild(closeButton);
|
||
|
||
for (let item of allShortcuts) {
|
||
if (item.description && !item.shortcut) {
|
||
let heading = document.createElement('h2');
|
||
heading.className = 'shortcuts-group-heading';
|
||
heading.textContent = item.description;
|
||
dialog.appendChild(heading);
|
||
|
||
} else {
|
||
let list = document.createElement('ul');
|
||
list.className = 'shortcuts-group';
|
||
|
||
for (let shortcut of item) {
|
||
let listItem = document.createElement('li');
|
||
listItem.className = 'shortcut-row';
|
||
list.appendChild(listItem);
|
||
|
||
let descriptionColumn = document.createElement('div')
|
||
descriptionColumn.className = 'shortcut-row__description';
|
||
descriptionColumn.textContent = shortcut.description;
|
||
listItem.appendChild(descriptionColumn);
|
||
|
||
let shortcutColumn = document.createElement('div');
|
||
shortcutColumn.className = 'shortcut-row__keys';
|
||
shortcutColumn.innerHTML = shortcut.shortcut.split(',')
|
||
.map(shortcuts => shortcuts.trim().split(' ').map(prettifyShortcut).join(' '))
|
||
.join(' or ');
|
||
listItem.appendChild(shortcutColumn);
|
||
}
|
||
|
||
dialog.appendChild(list);
|
||
}
|
||
}
|
||
|
||
let handleClose = (event) => {
|
||
event.preventDefault();
|
||
event.stopPropagation();
|
||
closeShortcutsReference();
|
||
};
|
||
|
||
let dialogShortcuts = new ShortcutHandler(dialog, notTextField);
|
||
|
||
dialogShortcuts.add('Escape', handleClose);
|
||
closeButton.addEventListener('click', handleClose);
|
||
wrap.addEventListener('click', handleClose);
|
||
|
||
dialog.addEventListener('click', event => event.stopPropagation());
|
||
|
||
document.body.appendChild(wrap);
|
||
}
|
||
|
||
document.body.overflow = 'hidden';
|
||
shortcutsListDialog.hidden = false;
|
||
prevActiveElement = document.activeElement;
|
||
shortcutsListDialog.children[0].focus();
|
||
}
|
||
|
||
function closeShortcutsReference() {
|
||
if (shortcutsListDialog) {
|
||
document.body.overflow = '';
|
||
shortcutsListDialog.hidden = true;
|
||
|
||
if (prevActiveElement) {
|
||
prevActiveElement.focus();
|
||
prevActiveElement = null;
|
||
}
|
||
}
|
||
}
|
||
|
||
window.addEventListener('load', () => {
|
||
let globalShortcuts = new ShortcutHandler(document, notTextField);
|
||
|
||
// Global shortcuts
|
||
|
||
let bindElement = bindElementFactory(globalShortcuts);
|
||
let bindLink = bindLinkFactory(globalShortcuts);
|
||
|
||
// * Common shortcuts
|
||
globalShortcuts.fakeItem('Common');
|
||
|
||
globalShortcuts.groupStart();
|
||
globalShortcuts.fakeItem('g 1 – 9', 'First 9 header links');
|
||
bindLink('g h', '/', 'Home');
|
||
bindLink('g l', '/list/', 'List of hyphae');
|
||
bindLink('g r', '/recent-changes/', 'Recent changes');
|
||
bindElement('g u', '.header-links__entry_user .header-links__link', 'Your profile′s hypha');
|
||
globalShortcuts.groupEnd();
|
||
|
||
let headerLinks = $$('.header-links__link');
|
||
for (let i = 1; i <= headerLinks.length && i < 10; i++) {
|
||
bindElement(`g ${i}`, headerLinks[i-1], `Header link #${i}`);
|
||
}
|
||
|
||
// * Hypha shortcuts
|
||
if (typeof editTextarea === 'undefined') {
|
||
globalShortcuts.fakeItem('Hypha');
|
||
|
||
globalShortcuts.groupStart();
|
||
globalShortcuts.fakeItem('1 – 9', 'First 9 hypha′s links');
|
||
bindElement('p, Alt+ArrowLeft', '.prevnext__prev', 'Next hypha');
|
||
bindElement('n, Alt+ArrowRight', '.prevnext__next', 'Previous hypha');
|
||
bindElement('s, Alt+ArrowTop', $$('.navi-title a').slice(1, -1).slice(-1)[0], 'Parent hypha');
|
||
bindElement('e', '.hypha-tabs__link[href^="/edit/"]', 'Edit this hypha');
|
||
globalShortcuts.groupEnd();
|
||
|
||
let hyphaLinks = $$('article .wikilink');
|
||
for (let i = 1; i <= hyphaLinks.length && i < 10; i++) {
|
||
bindElement(i.toString(), hyphaLinks[i-1], `Hypha link #${i}`);
|
||
}
|
||
}
|
||
|
||
// Hypha editor shortcuts
|
||
if (typeof editTextarea !== 'undefined') {
|
||
let editorShortcuts = new ShortcutHandler(editTextarea);
|
||
let bindElement = bindElementFactory(editorShortcuts);
|
||
|
||
let shortcuts = [
|
||
// Inspired by MS Word, Pages, Google Docs and Telegram desktop clients.
|
||
// And by myself, too.
|
||
|
||
// Win+Linux Mac Action Description
|
||
['Ctrl+b', 'Meta+b', wrapBold, 'Format: Bold'],
|
||
['Ctrl+i', 'Meta+i', wrapItalic, 'Format: Italic'],
|
||
['Ctrl+M', 'Meta+Shift+m', wrapMonospace, 'Format: Monospaced'],
|
||
['Ctrl+I', 'Meta+Shift+i', wrapHighlighted, 'Format: Highlight'],
|
||
['Ctrl+.', 'Meta+.', wrapLifted, 'Format: Superscript'],
|
||
['Ctrl+Comma', 'Meta+Comma', wrapLowered, 'Format: Subscript'],
|
||
// Strikethrough conflicts with 1Password on my machine but
|
||
// I'm probably the only Mycorrhiza user who uses 1Password. -handlerug
|
||
['Ctrl+X', 'Meta+Shift+x', wrapStrikethrough, 'Format: Strikethrough'],
|
||
['Ctrl+k', 'Meta+k', wrapLink, 'Format: Link'],
|
||
];
|
||
|
||
editorShortcuts.fakeItem('Editor');
|
||
|
||
editorShortcuts.groupStart();
|
||
for (let shortcut of shortcuts) {
|
||
if (isMac) {
|
||
editorShortcuts.add(shortcut[1], ...shortcut.slice(2))
|
||
} else {
|
||
editorShortcuts.add(shortcut[0], ...shortcut.slice(2))
|
||
}
|
||
}
|
||
editorShortcuts.groupEnd();
|
||
|
||
editorShortcuts.groupStart();
|
||
bindElement(isMac ? 'Meta+Enter' : 'Ctrl+Enter', $('.edit-form__save'), 'Save changes');
|
||
editorShortcuts.groupEnd();
|
||
|
||
// Help shortcut
|
||
editorShortcuts.add(isMac ? 'Meta+/' : 'Ctrl+/', openShortcutsReference);
|
||
}
|
||
|
||
// * Meta shortcuts
|
||
globalShortcuts.add('?', openShortcutsReference);
|
||
});
|
||
})();
|