yomichan/ext/bg/js/settings/popup-elements.js
toasted-nutbread 3ef1b9ebb2
Settings v2 modal size toggle (#1149)
* Add collapse/expand icons

* Update header layout

* Allow size animation

* Add styles for modal header buttons

* Support action buttons

* Update modals to support size changing
2020-12-20 19:59:39 -05:00

235 lines
7.7 KiB
JavaScript

/*
* Copyright (C) 2020 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/>.
*/
class PopupElement extends EventDispatcher {
constructor({node, visibleClassName, openingClassName, closingClassName, closingAnimationDuration}) {
super();
this._node = node;
this._visibleClassName = visibleClassName;
this._openingClassName = openingClassName;
this._closingClassName = closingClassName;
this._closingAnimationDuration = closingAnimationDuration;
this._mutationObserver = null;
this._visible = false;
this._closeTimer = null;
}
get node() {
return this._node;
}
isVisible() {
return this._node.classList.contains(this._visibleClassName);
}
setVisible(value, animate=true) {
value = !!value;
const {classList} = this._node;
if (classList.contains(this._visibleClassName) === value) { return; }
if (this._closeTimer !== null) {
clearTimeout(this._closeTimer);
this._completeClose(classList, true);
}
if (value) {
if (animate) { classList.add(this._openingClassName); }
getComputedStyle(this._node).getPropertyValue('display'); // Force update of CSS display property, allowing animation
classList.add(this._visibleClassName);
if (animate) { classList.remove(this._openingClassName); }
this._node.focus();
} else {
if (animate) { classList.add(this._closingClassName); }
classList.remove(this._visibleClassName);
if (animate) {
this._closeTimer = setTimeout(() => this._completeClose(classList, false), this._closingAnimationDuration);
}
}
}
on(eventName, callback) {
if (eventName === 'visibilityChanged') {
if (this._mutationObserver === null) {
this._visible = this._node.classList.contains(this._visibleClassName);
this._mutationObserver = new MutationObserver(this._onMutation.bind(this));
this._mutationObserver.observe(this._node, {
attributes: true,
attributeFilter: ['class'],
attributeOldValue: true
});
}
}
return super.on(eventName, callback);
}
off(eventName, callback) {
const result = super.off(eventName, callback);
if (eventName === 'visibilityChanged' && !this.hasListeners(eventName)) {
if (this._mutationObserver !== null) {
this._mutationObserver.disconnect();
this._mutationObserver = null;
}
}
return result;
}
// Private
_onMutation() {
const visible = this._node.classList.contains(this._visibleClassName);
if (this._visible === visible) { return; }
this._visible = visible;
this.trigger('visibilityChanged', {visible});
}
_completeClose(classList, reopening) {
this._closeTimer = null;
classList.remove(this._closingClassName);
this.trigger('closeCompleted', {reopening});
}
}
class Modal extends PopupElement {
constructor(node) {
super({
node,
visibleClassName: 'modal-container-open',
openingClassName: 'modal-container-opening',
closingClassName: 'modal-container-closing',
closingAnimationDuration: 375 // Milliseconds; includes buffer
});
this._contentNode = null;
this._canCloseOnClick = false;
}
prepare() {
const node = this.node;
this._contentNode = node.querySelector('.modal-content');
let dimmerNode = node.querySelector('.modal-content-dimmer');
if (dimmerNode === null) { dimmerNode = node; }
dimmerNode.addEventListener('mousedown', this._onModalContainerMouseDown.bind(this), false);
dimmerNode.addEventListener('mouseup', this._onModalContainerMouseUp.bind(this), false);
dimmerNode.addEventListener('click', this._onModalContainerClick.bind(this), false);
for (const actionNode of node.querySelectorAll('[data-modal-action]')) {
actionNode.addEventListener('click', this._onActionNodeClick.bind(this), false);
}
}
// Private
_onModalContainerMouseDown(e) {
this._canCloseOnClick = (e.currentTarget === e.target);
}
_onModalContainerMouseUp(e) {
if (!this._canCloseOnClick) { return; }
this._canCloseOnClick = (e.currentTarget === e.target);
}
_onModalContainerClick(e) {
if (!this._canCloseOnClick) { return; }
this._canCloseOnClick = false;
if (e.currentTarget !== e.target) { return; }
this.setVisible(false);
}
_onActionNodeClick(e) {
const {modalAction} = e.currentTarget.dataset;
switch (modalAction) {
case 'expand':
this._setExpanded(true);
break;
case 'collapse':
this._setExpanded(false);
break;
}
}
_setExpanded(expanded) {
if (this._contentNode === null) { return; }
this._contentNode.classList.toggle('modal-content-full', expanded);
}
}
class StatusFooter extends PopupElement {
constructor(node) {
super({
node,
visibleClassName: 'status-footer-container-open',
openingClassName: 'status-footer-container-opening',
closingClassName: 'status-footer-container-closing',
closingAnimationDuration: 375 // Milliseconds; includes buffer
});
this._body = node.querySelector('.status-footer');
}
prepare() {
this.on('closeCompleted', this._onCloseCompleted.bind(this), false);
this._body.querySelector('.status-footer-header-close').addEventListener('click', this._onCloseClick.bind(this), false);
}
getTaskContainer(selector) {
return this._body.querySelector(selector);
}
isTaskActive(selector) {
const target = this.getTaskContainer(selector);
return (target !== null && target.dataset.active);
}
setTaskActive(selector, active) {
const target = this.getTaskContainer(selector);
if (target === null) { return; }
const activeElements = new Set();
for (const element of this._body.querySelectorAll('.status-footer-item')) {
if (element.dataset.active) {
activeElements.add(element);
}
}
if (active) {
target.dataset.active = 'true';
if (!this.isVisible()) {
this.setVisible(true);
}
target.hidden = false;
} else {
delete target.dataset.active;
if (activeElements.size <= 1) {
this.setVisible(false);
}
}
}
// Private
_onCloseClick(e) {
e.preventDefault();
this.setVisible(false);
}
_onCloseCompleted() {
for (const element of this._body.querySelectorAll('.status-footer-item')) {
if (!element.dataset.active) {
element.hidden = true;
}
}
}
}