yomichan/ext/js/settings/keyboard-shortcuts-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
* KeyboardMouseInputField
*/
class KeyboardShortcutController {
constructor(settingsController) {
this._settingsController = settingsController;
this._entries = [];
this._os = null;
this._addButton = null;
this._resetButton = null;
this._listContainer = null;
this._emptyIndicator = null;
this._stringComparer = new Intl.Collator('en-US'); // Invariant locale
this._scrollContainer = null;
}
get settingsController() {
return this._settingsController;
}
async prepare() {
const {platform: {os}} = await yomichan.api.getEnvironmentInfo();
this._os = os;
this._addButton = document.querySelector('#hotkey-list-add');
this._resetButton = document.querySelector('#hotkey-list-reset');
this._listContainer = document.querySelector('#hotkey-list');
this._emptyIndicator = document.querySelector('#hotkey-list-empty');
this._scrollContainer = document.querySelector('#keyboard-shortcuts-modal .modal-body');
this._addButton.addEventListener('click', this._onAddClick.bind(this));
this._resetButton.addEventListener('click', this._onResetClick.bind(this));
this._settingsController.on('optionsChanged', this._onOptionsChanged.bind(this));
await this._updateOptions();
}
async addEntry(terminationCharacterEntry) {
const options = await this._settingsController.getOptions();
const {inputs: {hotkeys}} = options;
await this._settingsController.modifyProfileSettings([{
action: 'splice',
path: 'inputs.hotkeys',
start: hotkeys.length,
deleteCount: 0,
items: [terminationCharacterEntry]
}]);
await this._updateOptions();
this._scrollContainer.scrollTop = this._scrollContainer.scrollHeight;
}
async deleteEntry(index) {
const options = await this._settingsController.getOptions();
const {inputs: {hotkeys}} = options;
if (index < 0 || index >= hotkeys.length) { return false; }
await this._settingsController.modifyProfileSettings([{
action: 'splice',
path: 'inputs.hotkeys',
start: index,
deleteCount: 1,
items: []
}]);
await this._updateOptions();
return true;
}
async modifyProfileSettings(targets) {
return await this._settingsController.modifyProfileSettings(targets);
}
async getDefaultHotkeys() {
const defaultOptions = await this._settingsController.getDefaultOptions();
return defaultOptions.profiles[0].options.inputs.hotkeys;
}
// Private
_onOptionsChanged({options}) {
for (const entry of this._entries) {
entry.cleanup();
}
this._entries = [];
const {inputs: {hotkeys}} = options;
const fragment = document.createDocumentFragment();
for (let i = 0, ii = hotkeys.length; i < ii; ++i) {
const hotkeyEntry = hotkeys[i];
const node = this._settingsController.instantiateTemplate('hotkey-list-item');
fragment.appendChild(node);
const entry = new KeyboardShortcutHotkeyEntry(this, hotkeyEntry, i, node, this._os, this._stringComparer);
this._entries.push(entry);
entry.prepare();
}
this._listContainer.appendChild(fragment);
this._listContainer.hidden = (hotkeys.length === 0);
this._emptyIndicator.hidden = (hotkeys.length !== 0);
}
_onAddClick(e) {
e.preventDefault();
this._addNewEntry();
}
_onResetClick(e) {
e.preventDefault();
this._reset();
}
async _addNewEntry() {
const newEntry = {
action: '',
key: null,
modifiers: [],
scopes: ['popup', 'search'],
enabled: true
};
return await this.addEntry(newEntry);
}
async _updateOptions() {
const options = await this._settingsController.getOptions();
this._onOptionsChanged({options});
}
async _reset() {
const value = await this.getDefaultHotkeys();
await this._settingsController.setProfileSetting('inputs.hotkeys', value);
await this._updateOptions();
}
}
class KeyboardShortcutHotkeyEntry {
constructor(parent, data, index, node, os, stringComparer) {
this._parent = parent;
this._data = data;
this._index = index;
this._node = node;
this._os = os;
this._eventListeners = new EventListenerCollection();
this._inputField = null;
this._actionSelect = null;
this._scopeCheckboxes = null;
this._scopeCheckboxContainers = null;
this._basePath = `inputs.hotkeys[${this._index}]`;
this._stringComparer = stringComparer;
}
prepare() {
const node = this._node;
const menuButton = node.querySelector('.hotkey-list-item-button');
const input = node.querySelector('.hotkey-list-item-input');
const action = node.querySelector('.hotkey-list-item-action');
const scopeCheckboxes = node.querySelectorAll('.hotkey-scope-checkbox');
const scopeCheckboxContainers = node.querySelectorAll('.hotkey-scope-checkbox-container');
const enabledToggle = node.querySelector('.hotkey-list-item-enabled');
this._actionSelect = action;
this._scopeCheckboxes = scopeCheckboxes;
this._scopeCheckboxContainers = scopeCheckboxContainers;
this._inputField = new KeyboardMouseInputField(input, null, this._os);
this._inputField.prepare(this._data.key, this._data.modifiers, false, true);
action.value = this._data.action;
enabledToggle.checked = this._data.enabled;
enabledToggle.dataset.setting = `${this._basePath}.enabled`;
this._updateCheckboxVisibility();
this._updateCheckboxStates();
for (const scopeCheckbox of scopeCheckboxes) {
this._eventListeners.addEventListener(scopeCheckbox, 'change', this._onScopeCheckboxChange.bind(this), false);
}
this._eventListeners.addEventListener(menuButton, 'menuClose', this._onMenuClose.bind(this), false);
this._eventListeners.addEventListener(this._actionSelect, 'change', this._onActionSelectChange.bind(this), false);
this._eventListeners.on(this._inputField, 'change', this._onInputFieldChange.bind(this));
}
cleanup() {
this._eventListeners.removeAllEventListeners();
this._inputField.cleanup();
if (this._node.parentNode !== null) {
this._node.parentNode.removeChild(this._node);
}
}
// Private
_onMenuClose(e) {
switch (e.detail.action) {
case 'delete':
this._delete();
break;
case 'clearInputs':
this._inputField.clearInputs();
break;
case 'resetInput':
this._resetInput();
break;
}
}
_onInputFieldChange({key, modifiers}) {
this._setKeyAndModifiers(key, modifiers);
}
_onScopeCheckboxChange(e) {
const node = e.currentTarget;
const {scope} = node.dataset;
if (typeof scope !== 'string') { return; }
this._setScopeEnabled(scope, node.checked);
}
_onActionSelectChange(e) {
const value = e.currentTarget.value;
this._setAction(value);
}
async _delete() {
this._parent.deleteEntry(this._index);
}
async _setKeyAndModifiers(key, modifiers) {
this._data.key = key;
this._data.modifiers = modifiers;
await this._modifyProfileSettings([
{
action: 'set',
path: `${this._basePath}.key`,
value: key
},
{
action: 'set',
path: `${this._basePath}.modifiers`,
value: modifiers
}
]);
}
async _setScopeEnabled(scope, enabled) {
const scopes = this._data.scopes;
const index = scopes.indexOf(scope);
if ((index >= 0) === enabled) { return; }
if (enabled) {
scopes.push(scope);
const stringComparer = this._stringComparer;
scopes.sort((scope1, scope2) => stringComparer.compare(scope1, scope2));
} else {
scopes.splice(index, 1);
}
await this._modifyProfileSettings([{
action: 'set',
path: `${this._basePath}.scopes`,
value: scopes
}]);
}
async _modifyProfileSettings(targets) {
return await this._parent.settingsController.modifyProfileSettings(targets);
}
async _resetInput() {
const defaultHotkeys = await this._parent.getDefaultHotkeys();
const defaultValue = this._getDefaultKeyAndModifiers(defaultHotkeys, this._data.action);
if (defaultValue === null) { return; }
const {key, modifiers} = defaultValue;
await this._setKeyAndModifiers(key, modifiers);
this._inputField.setInput(key, modifiers);
}
_getDefaultKeyAndModifiers(defaultHotkeys, action) {
for (const {action: action2, key, modifiers} of defaultHotkeys) {
if (action2 !== action) { continue; }
return {modifiers, key};
}
return null;
}
async _setAction(value) {
const targets = [{
action: 'set',
path: `${this._basePath}.action`,
value
}];
this._data.action = value;
const scopes = this._data.scopes;
const validScopes = this._getValidScopesForAction(value);
if (validScopes !== null) {
let changed = false;
for (let i = 0, ii = scopes.length; i < ii; ++i) {
if (!validScopes.has(scopes[i])) {
scopes.splice(i, 1);
--i;
--ii;
changed = true;
}
}
if (changed) {
if (scopes.length === 0) {
scopes.push(...validScopes);
}
targets.push({
action: 'set',
path: `${this._basePath}.scopes`,
value: scopes
});
this._updateCheckboxStates();
}
}
await this._modifyProfileSettings(targets);
this._updateCheckboxVisibility();
}
_updateCheckboxStates() {
const scopes = this._data.scopes;
for (const scopeCheckbox of this._scopeCheckboxes) {
scopeCheckbox.checked = scopes.includes(scopeCheckbox.dataset.scope);
}
}
_updateCheckboxVisibility() {
const validScopes = this._getValidScopesForAction(this._data.action);
for (const node of this._scopeCheckboxContainers) {
node.hidden = !(validScopes === null || validScopes.has(node.dataset.scope));
}
}
_getValidScopesForAction(action) {
const optionNode = this._actionSelect.querySelector(`option[value="${action}"]`);
const scopesString = (optionNode !== null ? optionNode.dataset.scopes : void 0);
return (typeof scopesString === 'string' ? new Set(scopesString.split(' ')) : null);
}
}