yomichan/ext/js/input/hotkey-help-controller.js

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/*
* Copyright (C) 2021 Yomichan Authors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/* global
* HotkeyUtil
*/
class HotkeyHelpController {
constructor() {
this._hotkeyUtil = new HotkeyUtil();
this._localActionHotseys = new Map();
this._globalActionHotkeys = new Map();
this._replacementPattern = /\{0\}/g;
}
async prepare() {
const {platform: {os}} = await yomichan.api.getEnvironmentInfo();
this._hotkeyUtil.os = os;
await this._setupGlobalCommands(this._globalActionHotkeys);
}
setOptions(options) {
const hotkeys = options.inputs.hotkeys;
const hotkeyMap = this._localActionHotseys;
hotkeyMap.clear();
for (const {enabled, action, key, modifiers} of hotkeys) {
if (!enabled || key === null || action === '' || hotkeyMap.has(action)) { continue; }
hotkeyMap.set(action, this._hotkeyUtil.getInputDisplayValue(key, modifiers));
}
}
setupNode(node) {
const globalPrexix = 'global:';
const replacementPattern = this._replacementPattern;
for (const node2 of node.querySelectorAll('[data-hotkey]')) {
const data = JSON.parse(node2.dataset.hotkey);
let [action, attributes, values] = data;
if (!Array.isArray(attributes)) { attributes = [attributes]; }
const multipleValues = Array.isArray(values);
const actionIsGlobal = action.startsWith(globalPrexix);
if (actionIsGlobal) { action = action.substring(globalPrexix.length); }
const defaultAttributeValues = this._getDefaultAttributeValues(node2, data, attributes);
const hotkey = (actionIsGlobal ? this._globalActionHotkeys : this._localActionHotseys).get(action);
for (let i = 0, ii = attributes.length; i < ii; ++i) {
const attribute = attributes[i];
let value = null;
if (typeof hotkey !== 'undefined') {
value = (multipleValues ? values[i] : values);
value = value.replace(replacementPattern, hotkey);
} else {
value = defaultAttributeValues[i];
}
if (typeof value === 'string') {
node2.setAttribute(attribute, value);
} else {
node2.removeAttribute(attribute);
}
}
}
}
// Private
async _setupGlobalCommands(commandMap) {
const commands = await new Promise((resolve, reject) => {
if (!(isObject(chrome.commands) && typeof chrome.commands.getAll === 'function')) {
resolve([]);
return;
}
chrome.commands.getAll((result) => {
const e = chrome.runtime.lastError;
if (e) {
reject(new Error(e.message));
} else {
resolve(result);
}
});
});
commandMap.clear();
for (const {name, shortcut} of commands) {
if (shortcut.length === 0) { continue; }
const {key, modifiers} = this._hotkeyUtil.convertCommandToInput(shortcut);
commandMap.set(name, this._hotkeyUtil.getInputDisplayValue(key, modifiers));
}
return commandMap;
}
_getDefaultAttributeValues(node, data, attributes) {
if (data.length > 3) {
return data[3];
}
const defaultAttributeValues = [];
for (let i = 0, ii = attributes.length; i < ii; ++i) {
const attribute = attributes[i];
const value = node.hasAttribute(attribute) ? node.getAttribute(attribute) : null;
defaultAttributeValues.push(value);
}
data[3] = defaultAttributeValues;
node.dataset.hotkey = JSON.stringify(data);
return defaultAttributeValues;
}
}