PairDrop/public/scripts/ui-main.js

380 lines
No EOL
13 KiB
JavaScript

// Selector shortcuts
const $ = query => document.getElementById(query);
const $$ = query => document.querySelector(query);
// Event listener shortcuts
class Events {
static fire(type, detail = {}) {
window.dispatchEvent(new CustomEvent(type, { detail: detail }));
}
static on(type, callback, options) {
return window.addEventListener(type, callback, options);
}
static off(type, callback, options) {
return window.removeEventListener(type, callback, options);
}
}
// UIs needed on start
class ThemeUI {
constructor() {
this.prefersDarkTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
this.prefersLightTheme = window.matchMedia('(prefers-color-scheme: light)').matches;
this.$themeAutoBtn = document.getElementById('theme-auto');
this.$themeLightBtn = document.getElementById('theme-light');
this.$themeDarkBtn = document.getElementById('theme-dark');
let currentTheme = this.getCurrentTheme();
if (currentTheme === 'dark') {
this.setModeToDark();
} else if (currentTheme === 'light') {
this.setModeToLight();
}
this.$themeAutoBtn.addEventListener('click', _ => this.onClickAuto());
this.$themeLightBtn.addEventListener('click', _ => this.onClickLight());
this.$themeDarkBtn.addEventListener('click', _ => this.onClickDark());
}
getCurrentTheme() {
return localStorage.getItem('theme');
}
setCurrentTheme(theme) {
localStorage.setItem('theme', theme);
}
onClickAuto() {
if (this.getCurrentTheme()) {
this.setModeToAuto();
} else {
this.setModeToDark();
}
}
onClickLight() {
if (this.getCurrentTheme() !== 'light') {
this.setModeToLight();
} else {
this.setModeToAuto();
}
}
onClickDark() {
if (this.getCurrentTheme() !== 'dark') {
this.setModeToDark();
} else {
this.setModeToLight();
}
}
setModeToDark() {
document.body.classList.remove('light-theme');
document.body.classList.add('dark-theme');
this.setCurrentTheme('dark');
this.$themeAutoBtn.classList.remove("selected");
this.$themeLightBtn.classList.remove("selected");
this.$themeDarkBtn.classList.add("selected");
}
setModeToLight() {
document.body.classList.remove('dark-theme');
document.body.classList.add('light-theme');
this.setCurrentTheme('light');
this.$themeAutoBtn.classList.remove("selected");
this.$themeLightBtn.classList.add("selected");
this.$themeDarkBtn.classList.remove("selected");
}
setModeToAuto() {
document.body.classList.remove('dark-theme');
document.body.classList.remove('light-theme');
if (this.prefersDarkTheme) {
document.body.classList.add('dark-theme');
}
else if (this.prefersLightTheme) {
document.body.classList.add('light-theme');
}
localStorage.removeItem('theme');
this.$themeAutoBtn.classList.add("selected");
this.$themeLightBtn.classList.remove("selected");
this.$themeDarkBtn.classList.remove("selected");
}
}
class HeaderUI {
constructor() {
this.$header = $$('header');
this.$expandBtn = $('expand');
Events.on("resize", _ => this.evaluateOverflowing());
this.$expandBtn.addEventListener('click', _ => this.onExpandBtnClick());
}
async fadeIn() {
this.$header.classList.remove('opacity-0');
}
async evaluateOverflowing() {
// remove bracket icon before evaluating
this.$expandBtn.setAttribute('hidden', true);
// reset bracket icon rotation and header overflow
this.$expandBtn.classList.add('flipped');
this.$header.classList.remove('overflow-expanded');
const rtlLocale = Localization.currentLocaleIsRtl();
let icon;
const $headerIconsShown = document.querySelectorAll('body > header:first-of-type > *:not([hidden])');
for (let i= 1; i < $headerIconsShown.length; i++) {
let isFurtherLeftThanLastIcon = $headerIconsShown[i].offsetLeft >= $headerIconsShown[i-1].offsetLeft;
let isFurtherRightThanLastIcon = $headerIconsShown[i].offsetLeft <= $headerIconsShown[i-1].offsetLeft;
if ((!rtlLocale && isFurtherLeftThanLastIcon) || (rtlLocale && isFurtherRightThanLastIcon)) {
// we have found the first icon on second row. Use previous icon.
icon = $headerIconsShown[i-1];
break;
}
}
if (icon) {
// overflowing
// add overflowing-hidden class
this.$header.classList.add('overflow-hidden');
// add expand btn 2 before icon
this.$expandBtn.removeAttribute('hidden');
icon.before(this.$expandBtn);
}
else {
// no overflowing
// remove overflowing-hidden class
this.$header.classList.remove('overflow-hidden');
}
}
onExpandBtnClick() {
// toggle overflowing-hidden class and flip expand btn icon
if (this.$header.classList.contains('overflow-hidden')) {
this.$header.classList.remove('overflow-hidden');
this.$header.classList.add('overflow-expanded');
this.$expandBtn.classList.remove('flipped');
}
else {
this.$header.classList.add('overflow-hidden');
this.$header.classList.remove('overflow-expanded');
this.$expandBtn.classList.add('flipped');
}
Events.fire('header-changed');
}
}
class CenterUI {
constructor() {
this.$center = $$('#center');
this.$xNoPeers = $$('x-no-peers');
}
async fadeIn() {
this.$center.classList.remove('opacity-0');
// Prevent flickering on load
setTimeout(() => {
this.$xNoPeers.classList.remove('no-animation-on-load');
}, 600);
}
}
class FooterUI {
constructor() {
this.$footer = $$('footer');
this.$displayName = $('display-name');
this.$discoveryWrapper = $$('footer .discovery-wrapper');
this.$displayName.addEventListener('keydown', e => this._onKeyDownDisplayName(e));
this.$displayName.addEventListener('keyup', e => this._onKeyUpDisplayName(e));
this.$displayName.addEventListener('blur', e => this._saveDisplayName(e.target.innerText));
Events.on('display-name', e => this._onDisplayName(e.detail.displayName));
Events.on('self-display-name-changed', e => this._insertDisplayName(e.detail));
// Load saved display name on page load
Events.on('ws-connected', _ => this._loadSavedDisplayName());
Events.on('evaluate-footer-badges', _ => this._evaluateFooterBadges());
}
async showLoading() {
this.$displayName.setAttribute('placeholder', this.$displayName.dataset.placeholder);
}
async fadeIn() {
this.$footer.classList.remove('opacity-0');
}
async _evaluateFooterBadges() {
if (this.$discoveryWrapper.querySelectorAll('div:last-of-type > span[hidden]').length < 2) {
this.$discoveryWrapper.classList.remove('row');
this.$discoveryWrapper.classList.add('column');
}
else {
this.$discoveryWrapper.classList.remove('column');
this.$discoveryWrapper.classList.add('row');
}
Events.fire('redraw-canvas');
}
async _loadSavedDisplayName() {
const displayName = await this._getSavedDisplayName()
if (!displayName) return;
Logger.debug("Retrieved edited display name:", displayName)
Events.fire('self-display-name-changed', displayName);
}
_onDisplayName(displayName){
// set display name
this.$displayName.setAttribute('placeholder', displayName);
}
_insertDisplayName(displayName) {
this.$displayName.textContent = displayName;
}
_onKeyDownDisplayName(e) {
if (e.key === "Enter" || e.key === "Escape") {
e.preventDefault();
e.target.blur();
}
}
_onKeyUpDisplayName(e) {
// fix for Firefox inserting a linebreak into div on edit which prevents the placeholder from showing automatically when it is empty
if (/^(\n|\r|\r\n)$/.test(e.target.innerText)) e.target.innerText = '';
}
async _saveDisplayName(newDisplayName) {
newDisplayName = newDisplayName.replace(/(\n|\r|\r\n)/, '')
const savedDisplayName = await this._getSavedDisplayName();
if (newDisplayName === savedDisplayName) return;
if (newDisplayName) {
PersistentStorage.set('edited_display_name', newDisplayName)
.then(_ => {
Events.fire('notify-user', Localization.getTranslation("notifications.display-name-changed-permanently"));
})
.catch(_ => {
Logger.debug("This browser does not support IndexedDB. Use localStorage instead.");
localStorage.setItem('edited_display_name', newDisplayName);
Events.fire('notify-user', Localization.getTranslation("notifications.display-name-changed-temporarily"));
})
.finally(() => {
Events.fire('self-display-name-changed', newDisplayName);
Events.fire('broadcast-send', {type: 'self-display-name-changed', detail: newDisplayName});
});
}
else {
PersistentStorage.delete('edited_display_name')
.catch(_ => {
Logger.debug("This browser does not support IndexedDB. Use localStorage instead.")
localStorage.removeItem('edited_display_name');
})
.finally(() => {
Events.fire('notify-user', Localization.getTranslation("notifications.display-name-random-again"));
Events.fire('self-display-name-changed', '');
Events.fire('broadcast-send', {type: 'self-display-name-changed', detail: ''});
});
}
}
_getSavedDisplayName() {
return new Promise((resolve) => {
PersistentStorage.get('edited_display_name')
.then(displayName => {
if (!displayName) displayName = "";
resolve(displayName);
})
.catch(_ => {
let displayName = localStorage.getItem('edited_display_name');
if (!displayName) displayName = "";
resolve(displayName);
})
});
}
}
class BackgroundCanvas {
constructor() {
this.c = $$('canvas');
this.cCtx = this.c.getContext('2d');
this.$footer = $$('footer');
// redraw canvas
Events.on('resize', _ => this.init());
Events.on('redraw-canvas', _ => this.init());
Events.on('translation-loaded', _ => this.init());
// ShareMode
Events.on('share-mode-changed', e => this.onShareModeChanged(e.detail.active));
}
async fadeIn() {
this.c.classList.remove('opacity-0');
}
init() {
let oldW = this.w;
let oldH = this.h;
let oldOffset = this.offset
this.w = document.documentElement.clientWidth;
this.h = document.documentElement.clientHeight;
this.offset = this.$footer.offsetHeight - 27;
if (this.h >= 800) this.offset += 10;
if (oldW === this.w && oldH === this.h && oldOffset === this.offset) return; // nothing has changed
this.c.width = this.w;
this.c.height = this.h;
this.x0 = this.w / 2;
this.y0 = this.h - this.offset;
this.dw = Math.round(Math.max(this.w, this.h, 1000) / 13);
this.baseColor = '165, 165, 165';
this.baseOpacity = 0.3;
this.drawCircles(this.cCtx);
}
onShareModeChanged(active) {
this.baseColor = active ? '165, 165, 255' : '165, 165, 165';
this.baseOpacity = active ? 0.5 : 0.3;
this.drawCircles(this.cCtx);
}
drawCircle(ctx, radius) {
ctx.beginPath();
ctx.lineWidth = 2;
let opacity = Math.max(0, this.baseOpacity * (1 - 1.2 * radius / Math.max(this.w, this.h)));
ctx.strokeStyle = `rgba(${this.baseColor}, ${opacity})`;
ctx.arc(this.x0, this.y0, radius, 0, 2 * Math.PI);
ctx.stroke();
}
drawCircles(ctx) {
ctx.clearRect(0, 0, this.w, this.h);
for (let i = 0; i < 13; i++) {
this.drawCircle(ctx, this.dw * i + 33 + 66);
}
}
}