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https://activitypub.software/TransFem-org/Sharkey
synced 2024-11-22 05:55:12 +00:00
removed use of settimeout
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7730472c77
commit
590f7abefd
1 changed files with 58 additions and 23 deletions
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@ -2,29 +2,52 @@ class FavIconDot {
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canvas : HTMLCanvasElement;
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src : string | null = null;
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ctx : CanvasRenderingContext2D | null = null;
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favconImage : HTMLImageElement | null = null;
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faviconEL : HTMLLinkElement;
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hasLoaded : Promise<void>;
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faviconImage : HTMLImageElement | null = null;
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faviconEL : HTMLLinkElement | undefined;
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hasLoaded : Promise<void> | undefined;
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constructor() {
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this.canvas = document.createElement('canvas');
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this.faviconEL = document.querySelector<HTMLLinkElement>('link[rel$=icon]') ?? this._createFaviconElem();
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}
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//MUST BE CALLED BEFORE CALLING ANY OTHER FUNCTIONS
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public async setup() {
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const element : HTMLLinkElement = await this.getOrMakeFaviconElement();
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this.faviconEL = element;
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this.src = this.faviconEL.getAttribute('href');
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this.ctx = this.canvas.getContext('2d');
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this.favconImage = document.createElement('img');
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this.hasLoaded = new Promise((resolve, _reject) => {
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if (this.favconImage != null) {
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this.favconImage.onload = () => {
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this.canvas.width = (this.favconImage as HTMLImageElement).width;
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this.canvas.height = (this.favconImage as HTMLImageElement).height;
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// resolve();
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setTimeout(() => resolve(), 200);
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this.faviconImage = document.createElement('img');
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this.faviconImage.src = this.faviconEL.href;
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this.hasLoaded = new Promise((resolve, reject) => {
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(this.faviconImage as HTMLImageElement).onload = () => {
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this.canvas.width = (this.faviconImage as HTMLImageElement).width;
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this.canvas.height = (this.faviconImage as HTMLImageElement).height;
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resolve();
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};
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(this.faviconImage as HTMLImageElement).onerror = () => {
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reject('Failed to create favicon img element');
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};
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});
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}
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private async getOrMakeFaviconElement() : Promise<HTMLLinkElement> {
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return new Promise((resolve, reject) => {
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const favicon = document.querySelector<HTMLLinkElement>('link[rel$=icon]') ?? this._createFaviconElem();
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if (favicon === document.querySelector<HTMLLinkElement>('link[rel$=icon]')) {
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favicon.onload = () => {
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resolve(favicon);
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};
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favicon.onerror = () => {
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reject('Failed to load favicon');
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};
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}
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resolve(favicon);
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});
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this.favconImage.src = this.faviconEL.href;
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}
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private _createFaviconElem() {
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@ -36,15 +59,15 @@ class FavIconDot {
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}
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private _drawIcon() {
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if (!this.ctx || !this.favconImage) return;
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if (!this.ctx || !this.faviconImage) return;
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this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
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this.ctx.drawImage(this.favconImage, 0, 0, this.favconImage.width, this.favconImage.height);
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this.ctx.drawImage(this.faviconImage, 0, 0, this.faviconImage.width, this.faviconImage.height);
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}
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private _drawDot() {
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if (!this.ctx || !this.favconImage) return;
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if (!this.ctx || !this.faviconImage) return;
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this.ctx.beginPath();
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this.ctx.arc(this.favconImage.width - 10, 10, 10, 0, 2 * Math.PI);
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this.ctx.arc(this.faviconImage.width - 10, 10, 10, 0, 2 * Math.PI);
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this.ctx.fillStyle = getComputedStyle(document.documentElement).getPropertyValue('--navIndicator');
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this.ctx.strokeStyle = 'white';
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this.ctx.fill();
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@ -52,7 +75,7 @@ class FavIconDot {
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}
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private _setFavicon() {
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this.faviconEL.href = this.canvas.toDataURL('image/png');
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if (this.faviconEL) this.faviconEL.href = this.canvas.toDataURL('image/png');
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}
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async setVisible(isVisible : boolean) {
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@ -65,11 +88,23 @@ class FavIconDot {
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}
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}
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let icon: FavIconDot = new FavIconDot();
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let icon: FavIconDot | undefined = undefined;
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export function setFavIconDot(visible: boolean) {
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if (!icon) {
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icon = new FavIconDot();
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const setIconVisibility = async () => {
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if (!icon) {
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icon = new FavIconDot();
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await icon.setup();
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}
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(icon as FavIconDot).setVisible(visible);
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};
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// If document is already loaded, set visibility immediately
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if (document.readyState === 'complete') {
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setIconVisibility();
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} else {
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// Otherwise, set visibility when window loads
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window.onload = setIconVisibility;
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}
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icon.setVisible(visible);
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}
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