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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
'use strict';
// From chrome://mozapps/content/extensions/shortcuts.js
const keyOptions = [
e => String.fromCharCode(e.which), // A letter?
e => e.code.toUpperCase(), // A letter.
e => trimPrefix(e.code), // Digit3, ArrowUp, Numpad9.
e => trimPrefix(e.key), // Digit3, ArrowUp, Numpad9.
e => remapKey(e.key), // Comma, Period, Space.
];
// From chrome://mozapps/content/extensions/shortcuts.js
const validKeys = new Set([
'Home', 'End', 'PageUp', 'PageDown', 'Insert', 'Delete', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'F1', 'F2', 'F3', 'F4', 'F5', 'F6', 'F7', 'F8', 'F9', 'F10', 'F11', 'F12',
'MediaNextTrack', 'MediaPlayPause', 'MediaPrevTrack', 'MediaStop',
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
'Up', 'Down', 'Left', 'Right', 'Comma', 'Period', 'Space'
]);
// From chrome://mozapps/content/extensions/shortcuts.js
const remapKeys = {
',': 'Comma',
'.': 'Period',
' ': 'Space',
};
// From chrome://mozapps/content/extensions/shortcuts.js
function trimPrefix(string) {
return string.replace(/^(?:Digit|Numpad|Arrow)/, '');
}
// From chrome://mozapps/content/extensions/shortcuts.js
function remapKey(string) {
if (remapKeys.hasOwnProperty(string)) {
return remapKeys[string];
}
return string;
}
// Modified from chrome://mozapps/content/extensions/shortcuts.js
function getStringForEvent(event) {
for (const option of keyOptions) {
const value = option(event);
if (validKeys.has(value)) {
return value;
}
}
return '';
}
// From chrome://mozapps/content/extensions/shortcuts.js
function getShortcutForEvent(e) {
let modifierMap;
if (navigator.platform === 'MacIntel') {
modifierMap = {
MacCtrl: e.ctrlKey,
Alt: e.altKey,
Command: e.metaKey,
Shift: e.shiftKey,
};
} else {
modifierMap = {
Ctrl: e.ctrlKey,
Alt: e.altKey,
Shift: e.shiftKey,
};
}
return Object.entries(modifierMap)
.filter(([ key, isDown ]) => isDown)
.map(([ key ]) => key)
.concat(getStringForEvent(e))
.join('+');
}
// Modified from chrome://mozapps/content/extensions/shortcuts.js
function shortCutChanged(e) {
const input = e.target;
if (e.key === 'Escape') {
input.blur();
return;
} else if (e.key === 'Tab') {
return;
}
if (!e.altKey && !e.ctrlKey && !e.shiftKey && !e.metaKey) {
if (e.key === 'Delete' || e.key === 'Backspace') {
// Avoid triggering back-navigation.
e.preventDefault();
e.currentTarget.value = '';
return;
}
}
e.preventDefault();
e.stopPropagation();
const shortcutString = getShortcutForEvent(e);
if (e.type === 'keyup' || !shortcutString.length) {
return;
}
e.currentTarget.value = shortcutString;
}
(async function() {
try {
const settings = await browser.runtime.sendMessage({ action: 'load_settings' });
if (settings['colorTheme'] === undefined) {
document.body.removeAttribute('data-color-theme');
} else {
document.body.setAttribute('data-color-theme', settings['colorTheme']);
}
document.querySelectorAll('input').forEach((b) => {
b.addEventListener('keydown', e => shortCutChanged(e));
});
} catch (err) {
console.log('Error loading options page: ' + err);
}
})();
const saveButtons = document.querySelectorAll('.btn-primary');
for (const b of saveButtons) {
b.addEventListener('click', (e) => {
updateShortcut(b.parentElement.children[1].getAttribute('id'));
});
}
const resetButtons = document.querySelectorAll('.btn-danger');
for (const b of resetButtons) {
b.addEventListener('click', (e) => {
resetShortcut(b.parentElement.children[1].getAttribute('id'));
});
}
async function updateKeys() {
const commands = await browser.commands.getAll();
for (const c of commands) {
const elem = document.getElementById(c.name);
if (elem) {
elem.value = c.shortcut;
}
}
}
async function updateShortcut(shortcut) {
try {
await browser.commands.update({
name: shortcut,
shortcut: document.querySelector('#' + shortcut).value
});
createBanner('success', shortcut);
} catch (err) {
console.log('Cannot change shortcut: ' + err);
createBanner('danger', shortcut);
}
}
async function resetShortcut(shortcut) {
await browser.commands.reset(shortcut);
createBanner('info', shortcut);
updateKeys();
}
// Possible types: success, info, danger
function createBanner(type, shortcut) {
const banner = document.createElement('div');
banner.classList.add('alert', 'alert-dismissible', 'alert-' + type);
if (type === 'success') {
banner.textContent = tr('optionsShortcutsSuccess', shortcut);
} else if (type === 'info') {
banner.textContent = tr('optionsShortcutsInfo', shortcut);
} else if (type === 'danger') {
banner.textContent = tr('optionsShortcutsDanger', shortcut);
} else {
return;
}
document.body.appendChild(banner);
// Destroy the banner after five seconds
setTimeout(() => {
document.body.removeChild(banner);
}, 5000);
}
document.addEventListener('DOMContentLoaded', updateKeys);
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