bigbluebutton-Github/bigbluebutton-html5/imports/api/slides/server/methods/zoomSlide.js

67 lines
2.0 KiB
JavaScript
Executable File

import Presentations from '/imports/api/presentations';
import { Slides } from '/imports/api/slides';
import { Meteor } from 'meteor/meteor';
import RedisPubSub from '/imports/startup/server/redis';
import { extractCredentials } from '/imports/api/common/server/helpers';
import { check } from 'meteor/check';
import Logger from '/imports/startup/server/logger';
export default async function zoomSlide(slideNumber, podId, widthRatio, heightRatio, x, y) {
const REDIS_CONFIG = Meteor.settings.private.redis;
const CHANNEL = REDIS_CONFIG.channels.toAkkaApps;
const EVENT_NAME = 'ResizeAndMovePagePubMsg';
try {
const { meetingId, requesterUserId } = extractCredentials(this.userId);
check(meetingId, String);
check(requesterUserId, String);
check(slideNumber, Number);
check(podId, String);
check(widthRatio, Number);
check(heightRatio, Number);
check(x, Number);
check(y, Number);
const selector = {
meetingId,
podId,
current: true,
};
const Presentation = await Presentations.findOneAsync(selector);
if (!Presentation) {
throw new Meteor.Error('presentation-not-found', 'You need a presentation to be able to switch slides');
}
let validSlideNum = slideNumber;
if (validSlideNum > Presentation?.pages?.length) validSlideNum = 1;
const Slide = await Slides.findOneAsync({
meetingId,
podId,
presentationId: Presentation.id,
num: validSlideNum,
});
if (!Slide) {
throw new Meteor.Error('slide-not-found', `Slide number ${validSlideNum} not found in the current presentation`);
}
const payload = {
podId,
presentationId: Presentation.id,
pageId: Slide.id,
xOffset: x,
yOffset: y,
widthRatio,
heightRatio,
slideNumber: validSlideNum,
};
RedisPubSub.publishUserMessage(CHANNEL, EVENT_NAME, meetingId, requesterUserId, payload);
} catch (err) {
Logger.error(`Exception while invoking method zoomSlide ${err.stack}`);
}
}