jiti-meet/modules/UI/videolayout/FilmStrip.js

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/* global $, APP, interfaceConfig, config*/
import UIEvents from "../../../service/UI/UIEvents";
import UIUtil from "../util/UIUtil";
const thumbAspectRatio = 1 / 1;
const FilmStrip = {
/**
*
* @param eventEmitter the {EventEmitter} through which {FilmStrip} is to
* emit/fire {UIEvents} (such as {UIEvents.TOGGLED_FILM_STRIP}).
*/
init (eventEmitter) {
this.filmStrip = $('#remoteVideos');
this.eventEmitter = eventEmitter;
},
/**
* Toggles the visibility of the film strip.
*
* @param visible optional {Boolean} which specifies the desired visibility
* of the film strip. If not specified, the visibility will be flipped
* (i.e. toggled); otherwise, the visibility will be set to the specified
* value.
*/
toggleFilmStrip (visible) {
if (typeof visible === 'boolean'
&& this.isFilmStripVisible() == visible) {
return;
}
this.filmStrip.toggleClass("hidden");
// Emit/fire UIEvents.TOGGLED_FILM_STRIP.
var eventEmitter = this.eventEmitter;
if (eventEmitter) {
eventEmitter.emit(
UIEvents.TOGGLED_FILM_STRIP,
this.isFilmStripVisible());
}
},
isFilmStripVisible () {
return !this.filmStrip.hasClass('hidden');
},
setupFilmStripOnly () {
this.filmStrip.css({
padding: "0px 0px 18px 0px",
right: 0
});
},
getFilmStripHeight () {
if (this.isFilmStripVisible()) {
return this.filmStrip.outerHeight();
} else {
return 0;
}
},
getFilmStripWidth () {
return this.filmStrip.innerWidth()
- parseInt(this.filmStrip.css('paddingLeft'), 10)
- parseInt(this.filmStrip.css('paddingRight'), 10);
},
/**
* Calculates the thumbnail size.
* @param videoAreaAvailableWidth the currently available video area width
* that we want to take into account when calculating the film strip width.
*/
calculateThumbnailSize (isSideBarVisible) {
let availableHeight = interfaceConfig.FILM_STRIP_MAX_HEIGHT;
let numvids = this.getThumbs(true).length;
let localVideoContainer = $("#localVideoContainer");
/**
* If the videoAreaAvailableWidth is set we use this one to calculate
* the filmStrip width, because we're probably in a state where the
* film strip size hasn't been updated yet, but it will be.
*/
let videoAreaAvailableWidth
= UIUtil.getAvailableVideoWidth(isSideBarVisible)
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- UIUtil.parseCssInt(this.filmStrip.css('right'), 10)
- UIUtil.parseCssInt(this.filmStrip.css('paddingLeft'), 10)
- UIUtil.parseCssInt(this.filmStrip.css('paddingRight'), 10)
- UIUtil.parseCssInt(this.filmStrip.css('borderLeftWidth'), 10)
- UIUtil.parseCssInt(this.filmStrip.css('borderRightWidth'), 10)
- 5;
let availableWidth = videoAreaAvailableWidth;
// If the number of videos is 0 or undefined we don't need to calculate
// further.
if (numvids)
availableWidth = Math.floor(
(videoAreaAvailableWidth - numvids * (
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UIUtil.parseCssInt(
localVideoContainer.css('borderLeftWidth'), 10)
+ UIUtil.parseCssInt(
localVideoContainer.css('borderRightWidth'), 10)
+ UIUtil.parseCssInt(
localVideoContainer.css('paddingLeft'), 10)
+ UIUtil.parseCssInt(
localVideoContainer.css('paddingRight'), 10)
+ UIUtil.parseCssInt(
localVideoContainer.css('marginLeft'), 10)
+ UIUtil.parseCssInt(
localVideoContainer.css('marginRight'), 10)))
/ numvids);
let maxHeight
// If the MAX_HEIGHT property hasn't been specified
// we have the static value.
= Math.min( interfaceConfig.FILM_STRIP_MAX_HEIGHT || 120,
availableHeight);
availableHeight
= Math.min( maxHeight, window.innerHeight - 18);
if (availableHeight < availableWidth) {
availableWidth = availableHeight;
}
else
availableHeight = availableWidth;
return {
thumbWidth: availableWidth,
thumbHeight: availableHeight
};
},
resizeThumbnails (thumbWidth, thumbHeight,
animate = false, forceUpdate = false) {
return new Promise(resolve => {
this.getThumbs(!forceUpdate).animate({
height: thumbHeight,
width: thumbWidth
}, {
queue: false,
duration: animate ? 500 : 0,
complete: resolve
});
this.filmStrip.animate({
// adds 2 px because of small video 1px border
height: thumbHeight + 2
}, {
queue: false,
duration: animate ? 500 : 0
});
if (!animate) {
resolve();
}
});
},
getThumbs (only_visible = false) {
let selector = 'span';
if (only_visible) {
selector += ':visible';
}
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// Exclude the local video container if it has been hidden.
if ($("#localVideoContainer").hasClass("hidden"))
return this.filmStrip.children(selector)
.not("#localVideoContainer");
else
return this.filmStrip.children(selector);
}
};
export default FilmStrip;