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perf: Reduce updates #9

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perf: Reduce updates #9

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02dff21
perf: Reduce updates
mister-ben Mar 25, 2024
0e6dbe4
Merge branch 'main' into debounce
mister-ben Oct 29, 2024
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29 changes: 12 additions & 17 deletions src/plugin.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,24 +22,17 @@ const defaults = {
* A Video.js player.
* @param {Object} [options={}]
* An object of options left to the plugin author to define.
* @return {Function} disposal function for re initialization
*/
const onPlayerReady = (player, options) => {
player.addClass('vjs-quality-menu');

const controlBar = player.getChild('controlBar');

const button = controlBar.addChild(
controlBar.qualityMenuButton = controlBar.addChild(
'QualityMenuButton',
options,
controlBar.children_.length - 2
);

return function() {
player.removeClass('vjs-quality-menu');
controlBar.removeChild(button);
button.dispose();
};
};

/**
Expand All @@ -50,24 +43,26 @@ const onPlayerReady = (player, options) => {
* @param {Object} [options] an object with plugin options
*/
const initPlugin = function(player, options) {
if (typeof player.qualityLevels !== 'undefined') {
if (player.hasPlugin('qualityLevels')) {
// call qualityLevels to initialize it in case it hasnt been initialized yet
player.qualityLevels();

let disposeFn = () => {};

player.ready(() => {
disposeFn = onPlayerReady(player, options);

player.on('loadstart', () => {
disposeFn();
disposeFn = onPlayerReady(player, options);
});
onPlayerReady(player, options);
});

// reinitialization is no-op for now
player.qualityMenu = () => {};
player.qualityMenu.VERSION = VERSION;

player.qualityMenu.dispose = () => {
console.log('disposing plugin');
player.removeClass('vjs-quality-menu');
player.controlBar.removeChild(player.controlBar.qualityMenuButton);
player.controlBar.qualityMenuButton.dispose();
};

player.on('dispose', player.qualityMenu.dispose);
}
};

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4 changes: 3 additions & 1 deletion src/quality-menu-button.js
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,8 @@ class QualityMenuButton extends MenuButton {

this.qualityLevels_ = player.qualityLevels();

this.update = this.update.bind(this);
// Update is debounced because levels are generally added or removed in quick succession
this.update = videojs.fn.debounce(this.update.bind(this), 50);
this.hide = this.hide.bind(this);

this.handleQualityChange_ = this.handleQualityChange_.bind(this);
Expand All @@ -75,6 +76,7 @@ class QualityMenuButton extends MenuButton {

this.on(this.qualityLevels_, 'addqualitylevel', this.update);
this.on(this.qualityLevels_, 'removequalitylevel', this.update);
this.on(player, 'loadstart', this.update);
this.on(this.qualityLevels_, 'change', this.handleQualityChange_);

// TODO: Remove this and the `defaultResolution` option once videojs/http-streaming supports comparable functionality
Expand Down