320 lines
11 KiB
TypeScript
320 lines
11 KiB
TypeScript
import { calcImageInBox, isObject } from "../utils";
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import { bytesFromHex, getFileNameByLocation } from "../bin_utils";
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import appDownloadManager from "./appDownloadManager";
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import { isSafari } from "../../helpers/userAgent";
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import { FileLocation, InputFileLocation, Photo, PhotoSize } from "../../layer";
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import { MyDocument } from "./appDocsManager";
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import { CancellablePromise } from "../../helpers/cancellablePromise";
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export type MyPhoto = Photo.photo;
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export class AppPhotosManager {
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private photos: {
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[id: string]: MyPhoto
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} = {};
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private documentThumbsCache: {
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[docID: string]: {
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downloaded: number,
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url: string
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}
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} = {};
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public windowW = 0;
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public windowH = 0;
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public static jf = new Uint8Array(bytesFromHex('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'));
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public static Df = bytesFromHex('ffd9');
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constructor() {
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window.addEventListener('resize', (e) => {
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this.windowW = document.body.scrollWidth;
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this.windowH = document.body.scrollHeight;
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});
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this.windowW = document.body.scrollWidth;
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this.windowH = document.body.scrollHeight;
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}
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public savePhoto(photo: Photo, context?: any) {
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if(photo._ == 'photoEmpty') return undefined;
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if(this.photos[photo.id]) return Object.assign(this.photos[photo.id], photo);
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/* if(context) {
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Object.assign(photo, context);
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} */ // warning
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if(!photo.id) {
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console.warn('no apiPhoto.id', photo);
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} else this.photos[photo.id] = photo;
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return photo;
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}
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public choosePhotoSize(photo: MyPhoto | MyDocument, width = 0, height = 0) {
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//if(Config.Navigator.retina) {
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if(window.devicePixelRatio > 1) {
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width *= 2;
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height *= 2;
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}
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/*
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s box 100x100
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m box 320x320
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x box 800x800
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y box 1280x1280
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w box 2560x2560
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a crop 160x160
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b crop 320x320
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c crop 640x640
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d crop 1280x1280 */
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let bestPhotoSize: PhotoSize = {_: 'photoSizeEmpty', type: ''};
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const sizes = ((photo as MyPhoto).sizes || (photo as MyDocument).thumbs) as PhotoSize[];
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if(sizes) {
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for(const photoSize of sizes) {
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if(!('w' in photoSize) && !('h' in photoSize)) continue;
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bestPhotoSize = photoSize;
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const {w, h} = calcImageInBox(photoSize.w, photoSize.h, width, height);
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if(w == width || h == height) {
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break;
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}
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}
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}
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return bestPhotoSize;
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}
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/* public getUserPhotos(userID: number, maxID: number, limit: number) {
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var inputUser = appUsersManager.getUserInput(userID);
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return apiManager.invokeApi('photos.getUserPhotos', {
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user_id: inputUser,
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offset: 0,
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limit: limit || 20,
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max_id: maxID || 0
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}).then((photosResult: any) => {
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appUsersManager.saveApiUsers(photosResult.users);
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var photoIDs = [];
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var context = {user_id: userID};
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for(var i = 0; i < photosResult.photos.length; i++) {
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//this.savePhoto(photosResult.photos[i], context);
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photosResult.photos[i] = this.savePhoto(photosResult.photos[i], context);
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photoIDs.push(photosResult.photos[i].id);
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}
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return {
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count: photosResult.count || photosResult.photos.length,
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photos: photoIDs
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};
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});
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} */
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public getPreviewURLFromBytes(bytes: Uint8Array | number[], isSticker = false) {
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let arr: Uint8Array;
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if(!isSticker) {
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arr = AppPhotosManager.jf.concat(bytes.slice(3), AppPhotosManager.Df);
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arr[164] = bytes[1];
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arr[166] = bytes[2];
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} else {
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arr = bytes instanceof Uint8Array ? bytes : new Uint8Array(bytes);
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}
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let mimeType: string;
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if(isSticker) {
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mimeType = isSafari ? 'image/png' : 'image/webp';
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} else {
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mimeType = 'image/jpeg';
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}
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const blob = new Blob([arr], {type: mimeType});
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return URL.createObjectURL(blob);
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}
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public getPreviewURLFromThumb(thumb: PhotoSize.photoCachedSize | PhotoSize.photoStrippedSize, isSticker = false) {
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return thumb.url ?? (thumb.url = this.getPreviewURLFromBytes(thumb.bytes, isSticker));
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}
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public setAttachmentPreview(bytes: Uint8Array | number[], element: HTMLElement | SVGForeignObjectElement, isSticker = false, background = false) {
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let url = this.getPreviewURLFromBytes(bytes, isSticker);
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if(background) {
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let img = new Image();
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img.src = url;
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img.addEventListener('load', () => {
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element.style.backgroundImage = 'url(' + url + ')';
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});
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return element;
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} else {
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if(element instanceof HTMLImageElement) {
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element.src = url;
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return element;
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} else {
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let img = new Image();
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img.src = url;
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element.append(img);
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return img;
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}
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}
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}
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public setAttachmentSize(photo: MyPhoto | MyDocument, element: HTMLElement | SVGForeignObjectElement, boxWidth: number, boxHeight: number, isSticker = false, dontRenderPreview = false) {
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const photoSize = this.choosePhotoSize(photo, boxWidth, boxHeight);
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//console.log('setAttachmentSize', photo, photo.sizes[0].bytes, div);
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const sizes = (photo as MyPhoto).sizes || (photo as MyDocument).thumbs;
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const thumb = sizes?.length ? sizes[0] : null;
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if(thumb && ('bytes' in thumb)) {
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if((!photo.downloaded || (photo as MyDocument).type == 'video' || (photo as MyDocument).type == 'gif') && !isSticker && !dontRenderPreview) {
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this.setAttachmentPreview(thumb.bytes, element, isSticker);
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}
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}
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let width: number;
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let height: number;
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if(photo._ == 'document') {
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width = photo.w || 512;
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height = photo.h || 512;
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} else {
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width = 'w' in photoSize ? photoSize.w : 100;
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height = 'h' in photoSize ? photoSize.h : 100;
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}
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const {w, h} = calcImageInBox(width, height, boxWidth, boxHeight);
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if(element instanceof SVGForeignObjectElement) {
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element.setAttributeNS(null, 'width', '' + w);
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element.setAttributeNS(null, 'height', '' + h);
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//console.log('set dimensions to svg element:', element, w, h);
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} else {
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element.style.width = w + 'px';
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element.style.height = h + 'px';
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}
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return photoSize;
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}
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public getPhotoDownloadOptions(photo: MyPhoto | MyDocument, photoSize: PhotoSize) {
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const isMyDocument = photo._ == 'document';
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if(!photoSize || photoSize._ == 'photoSizeEmpty') {
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//console.error('no photoSize by photo:', photo);
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throw new Error('photoSizeEmpty!');
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}
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// maybe it's a thumb
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const isPhoto = photoSize._ == 'photoSize' && photo.access_hash && photo.file_reference;
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const location: InputFileLocation.inputPhotoFileLocation | InputFileLocation.inputDocumentFileLocation | FileLocation = isPhoto ? {
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_: isMyDocument ? 'inputDocumentFileLocation' : 'inputPhotoFileLocation',
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id: photo.id,
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access_hash: photo.access_hash,
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file_reference: photo.file_reference,
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thumb_size: photoSize.type
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} : (photoSize as PhotoSize.photoSize).location;
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return {dcID: photo.dc_id, location, size: isPhoto ? (photoSize as PhotoSize.photoSize).size : undefined};
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}
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/* public getPhotoURL(photo: MTPhoto | MTMyDocument, photoSize: MTPhotoSize) {
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const downloadOptions = this.getPhotoDownloadOptions(photo, photoSize);
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return {url: getFileURL('photo', downloadOptions), location: downloadOptions.location};
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} */
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public preloadPhoto(photoID: any, photoSize?: PhotoSize): CancellablePromise<Blob> {
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const photo = this.getPhoto(photoID);
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// @ts-ignore
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if(!photo || photo._ == 'photoEmpty') {
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throw new Error('preloadPhoto photoEmpty!');
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}
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if(!photoSize) {
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const fullWidth = this.windowW;
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const fullHeight = this.windowH;
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photoSize = this.choosePhotoSize(photo, fullWidth, fullHeight);
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}
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const cacheContext = this.getCacheContext(photo);
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if(cacheContext.downloaded >= ('size' in photoSize ? photoSize.size : 0) && cacheContext.url) {
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return Promise.resolve() as any;
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}
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const downloadOptions = this.getPhotoDownloadOptions(photo, photoSize);
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const fileName = getFileNameByLocation(downloadOptions.location);
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let download = appDownloadManager.getDownload(fileName);
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if(download) {
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return download;
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}
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download = appDownloadManager.download(downloadOptions);
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download.then(blob => {
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if(!cacheContext.downloaded || cacheContext.downloaded < blob.size) {
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cacheContext.downloaded = blob.size;
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cacheContext.url = URL.createObjectURL(blob);
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//console.log('wrote photo:', photo, photoSize, cacheContext, blob);
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}
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return blob;
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});
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return download;
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}
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public getCacheContext(photo: any) {
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return photo._ == 'document' ? this.getDocumentCachedThumb(photo.id) : photo;
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}
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public getDocumentCachedThumb(docID: string) {
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return this.documentThumbsCache[docID] ?? (this.documentThumbsCache[docID] = {downloaded: 0, url: ''});
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}
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public getPhoto(photoID: any): MyPhoto {
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return isObject(photoID) ? photoID : this.photos[photoID];
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}
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public getInput(photo: MyPhoto) {
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return {
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_: 'inputMediaPhoto',
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flags: 0,
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id: {
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_: 'inputPhoto',
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id: photo.id,
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access_hash: photo.access_hash,
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file_reference: photo.file_reference
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},
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ttl_seconds: 0
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};
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}
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public savePhotoFile(photo: MyPhoto | MyDocument) {
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const fullPhotoSize = this.choosePhotoSize(photo, 0xFFFF, 0xFFFF);
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if(fullPhotoSize._ != 'photoSize') {
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return;
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}
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const location: InputFileLocation.inputDocumentFileLocation | InputFileLocation.inputPhotoFileLocation = {
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_: photo._ == 'document' ? 'inputDocumentFileLocation' : 'inputPhotoFileLocation',
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id: photo.id,
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access_hash: photo.access_hash,
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file_reference: photo.file_reference,
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thumb_size: fullPhotoSize.type
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};
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appDownloadManager.downloadToDisc({
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dcID: photo.dc_id,
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location,
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size: fullPhotoSize.size,
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fileName: 'photo' + photo.id + '.jpg'
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}, 'photo' + photo.id + '.jpg');
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}
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}
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export default new AppPhotosManager();
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