yomichan/ext/bg/js/settings/audio-ui.js
2019-12-05 22:36:59 -05:00

142 lines
4.3 KiB
JavaScript

/*
* Copyright (C) 2019 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* 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 <http://www.gnu.org/licenses/>.
*/
class AudioSourceUI {
static instantiateTemplate(templateSelector) {
const template = document.querySelector(templateSelector);
const content = document.importNode(template.content, true);
return content.firstChild;
}
}
AudioSourceUI.Container = class Container {
constructor(audioSources, container, addButton) {
this.audioSources = audioSources;
this.container = container;
this.addButton = addButton;
this.children = [];
this.container.textContent = '';
for (const audioSource of toIterable(audioSources)) {
this.children.push(new AudioSourceUI.AudioSource(this, audioSource, this.children.length));
}
this._clickListener = () => this.onAddAudioSource();
this.addButton.addEventListener('click', this._clickListener, false);
}
cleanup() {
for (const child of this.children) {
child.cleanup();
}
this.addButton.removeEventListener('click', this._clickListener, false);
this.container.textContent = '';
this._clickListener = null;
}
save() {
// Override
}
remove(child) {
const index = this.children.indexOf(child);
if (index < 0) {
return;
}
child.cleanup();
this.children.splice(index, 1);
this.audioSources.splice(index, 1);
for (let i = index; i < this.children.length; ++i) {
this.children[i].index = i;
}
}
onAddAudioSource() {
const audioSource = this.getUnusedAudioSource();
this.audioSources.push(audioSource);
this.save();
this.children.push(new AudioSourceUI.AudioSource(this, audioSource, this.children.length));
}
getUnusedAudioSource() {
const audioSourcesAvailable = [
'jpod101',
'jpod101-alternate',
'jisho',
'custom'
];
for (const source of audioSourcesAvailable) {
if (this.audioSources.indexOf(source) < 0) {
return source;
}
}
return audioSourcesAvailable[0];
}
};
AudioSourceUI.AudioSource = class AudioSource {
constructor(parent, audioSource, index) {
this.parent = parent;
this.audioSource = audioSource;
this.index = index;
this.container = AudioSourceUI.instantiateTemplate('#audio-source-template');
this.select = this.container.querySelector('.audio-source-select');
this.removeButton = this.container.querySelector('.audio-source-remove');
this.select.value = audioSource;
this._selectChangeListener = () => this.onSelectChanged();
this._removeClickListener = () => this.onRemoveClicked();
this.select.addEventListener('change', this._selectChangeListener, false);
this.removeButton.addEventListener('click', this._removeClickListener, false);
parent.container.appendChild(this.container);
}
cleanup() {
this.select.removeEventListener('change', this._selectChangeListener, false);
this.removeButton.removeEventListener('click', this._removeClickListener, false);
if (this.container.parentNode !== null) {
this.container.parentNode.removeChild(this.container);
}
}
save() {
this.parent.save();
}
onSelectChanged() {
this.audioSource = this.select.value;
this.parent.audioSources[this.index] = this.audioSource;
this.save();
}
onRemoveClicked() {
this.parent.remove(this);
this.save();
}
};