bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/presentation/service.js

88 lines
2.2 KiB
JavaScript

import WhiteboardMultiUser from '/imports/api/whiteboard-multi-user/';
import PresentationPods from '/imports/api/presentation-pods';
import Presentations from '/imports/api/presentations';
import Slides from '/imports/api/slides';
import Users from '/imports/api/users';
import Auth from '/imports/ui/services/auth';
const getCurrentPresentation = podId => Presentations.findOne({
podId,
current: true,
});
const downloadPresentationUri = (podId) => {
const currentPresentation = getCurrentPresentation(podId);
if (!currentPresentation) {
return null;
}
const uri = `https://${window.document.location.hostname}/bigbluebutton/presentation/download/`
+ `${currentPresentation.meetingId}/${currentPresentation.id}`
+ `?presFilename=${encodeURIComponent(currentPresentation.name)}`;
return uri;
};
const isPresentationDownloadable = (podId) => {
const currentPresentation = getCurrentPresentation(podId);
if (!currentPresentation) {
return null;
}
return currentPresentation.downloadable;
};
const getCurrentSlide = (podId) => {
const currentPresentation = getCurrentPresentation(podId);
if (!currentPresentation) {
return null;
}
return Slides.findOne(
{
podId,
presentationId: currentPresentation.id,
current: true,
},
{
fields: {
meetingId: 0,
thumbUri: 0,
swfUri: 0,
txtUri: 0,
svgUri: 0,
},
},
);
};
const isPresenter = (podId) => {
// a main presenter in the meeting always owns a default pod
if (podId === 'DEFAULT_PRESENTATION_POD') {
const currentUser = Users.findOne({ userId: Auth.userID });
return currentUser ? currentUser.presenter : false;
}
// if a pod is not default, then we check whether this user owns a current pod
const selector = {
meetingId: Auth.meetingID,
podId,
};
const pod = PresentationPods.findOne(selector);
return pod.currentPresenterId === Auth.userID;
};
const getMultiUserStatus = (whiteboardId) => {
const data = WhiteboardMultiUser.findOne({ meetingId: Auth.meetingID, whiteboardId });
return data ? data.multiUser : false;
};
export default {
getCurrentSlide,
isPresenter,
isPresentationDownloadable,
downloadPresentationUri,
getMultiUserStatus,
};