bigbluebutton-Github/bigbluebutton-html5/imports/api/presentations/server/methods/publishSwitchToNextSlideMessage.js
2016-05-16 13:12:27 -05:00

42 lines
1.5 KiB
JavaScript
Executable File

import { publish } from '/imports/startup/server/helpers';
import { isAllowedTo } from '/imports/startup/server/userPermissions';
import { appendMessageHeader } from '/imports/startup/server/helpers';
import Presentations from '/imports/api/presentations';
import Slides from '/imports/api/slides';
import { redisConfig } from '/config';
Meteor.methods({
publishSwitchToNextSlideMessage(credentials) {
const { meetingId, requesterUserId, requesterToken } = credentials;
let currentPresentationDoc, currentSlideDoc, message, nextSlideDoc;
currentPresentationDoc = Presentations.findOne({
meetingId: meetingId,
'presentation.current': true,
});
if (currentPresentationDoc != null) {
currentSlideDoc = Slides.findOne({
meetingId: meetingId,
presentationId: currentPresentationDoc.presentation.id,
'slide.current': true,
});
if (currentSlideDoc != null) {
nextSlideDoc = Slides.findOne({
meetingId: meetingId,
presentationId: currentPresentationDoc.presentation.id,
'slide.num': currentSlideDoc.slide.num + 1,
});
if ((nextSlideDoc != null) && isAllowedTo('switchSlide', credentials)) {
message = {
payload: {
page: nextSlideDoc.slide.id,
meeting_id: meetingId,
},
};
message = appendMessageHeader('go_to_slide', message);
return publish(redisConfig.channels.toBBBApps.presentation, message);
}
}
}
},
});