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Cache sprites on request

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Omar Roth 2019-05-27 20:27:20 -05:00
parent ceed945872
commit 5cec7f8f1e
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1 changed files with 11 additions and 0 deletions
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src/plugin.js
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@ -5,6 +5,9 @@ import { version as VERSION } from '../package.json'
// Default options for the plugin.
const defaults = {}
// Cache for image elements
var cache = {}
// Cross-compatibility for Video.js 5 and 6.
const registerPlugin = videojs.registerPlugin || videojs.plugin
// const dom = videojs.dom || videojs;
@ -207,6 +210,13 @@ class vttThumbnailsPlugin {
for (let i = 0; i < this.vttData.length; ++i) {
let item = this.vttData[i]
if (time >= item.start && time < item.end) {
// Cache miss
if (item.css.url && !cache[item.css.url]) {
let image = new Image();
image.src = item.css.url;
cache[item.css.url] = image;
}
return item.css
}
}
@ -333,6 +343,7 @@ class vttThumbnailsPlugin {
cssObj.background = 'url("' + imageProps.image + '") no-repeat -' + imageProps.x + 'px -' + imageProps.y + 'px'
cssObj.width = imageProps.w + 'px'
cssObj.height = imageProps.h + 'px'
cssObj.url = imageProps.image
return cssObj
}