bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/video-preview/virtual-background/service.js
2024-07-26 16:48:17 -03:00

138 lines
3.0 KiB
JavaScript

import logger from '/imports/startup/client/logger';
const MIME_TYPES_ALLOWED = ['image/png', 'image/jpeg', 'image/webp'];
const MAX_FILE_SIZE = 5000; // KBytes
const withObjectStore = ({
onError,
onSuccess,
}) => {
const request = window.indexedDB.open('BBB', 1);
request.onerror = onError;
request.onupgradeneeded = (e) => {
const db = e.target.result;
db.createObjectStore('CustomBackgrounds', { keyPath: 'uniqueId' });
};
request.onsuccess = (e) => {
const db = e.target.result;
const transaction = db.transaction(['CustomBackgrounds'], 'readwrite');
const objectStore = transaction.objectStore('CustomBackgrounds');
onSuccess(objectStore);
};
};
const genericErrorHandlerBuilder = (
code,
message,
callback,
) => (e) => {
logger.warn({
logCode: code,
extraInfo: {
errorName: e.name,
errorMessage: e.message,
},
}, `${message}: ${e.message}`);
if (callback) callback(e);
};
const load = (onError, onSuccess) => {
withObjectStore({
onError: genericErrorHandlerBuilder(
'IndexedDB_access',
'Error on load custom backgrounds from IndexedDB',
onError,
),
onSuccess: (objectStore) => {
const backgrounds = [];
objectStore.openCursor().onsuccess = (e) => {
const cursor = e.target.result;
if (cursor) {
backgrounds.push(cursor.value);
cursor.continue();
} else {
onSuccess(backgrounds);
}
};
},
});
};
const save = (background, onError) => {
withObjectStore({
onError: genericErrorHandlerBuilder(
'IndexedDB_access',
'Error on save custom background to IndexedDB',
onError,
),
onSuccess: (objectStore) => {
objectStore.add(background);
},
});
};
const del = (key, onError) => {
withObjectStore({
onError: genericErrorHandlerBuilder(
'IndexedDB_access',
'Error on delete custom background from IndexedDB',
onError,
),
onSuccess: (objectStore) => {
objectStore.delete(key);
},
});
};
const update = (background) => {
withObjectStore({
onError: genericErrorHandlerBuilder(
'IndexedDB_access',
'Error on update custom background in IndexedDB',
'Something wrong while updating custom background',
),
onSuccess: (objectStore) => {
objectStore.put(background);
},
});
};
// Function to convert image URL to a File object
async function getFileFromUrl(url) {
try {
const response = await fetch(url, {
credentials: 'omit',
mode: 'cors',
headers: {
Accept: 'image/*',
},
});
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const blob = await response.blob();
const file = new File([blob], 'fetchedWebcamBackground', { type: blob.type });
return file;
} catch (error) {
logger.error('Fetch error:', error);
return null;
}
}
export default {
load,
save,
del,
update,
MIME_TYPES_ALLOWED,
MAX_FILE_SIZE,
getFileFromUrl,
};