问VideoJS 5插件添加按钮

EN

var vjsButtonComponent = videojs.getComponent('Button');
videojs.registerComponent('DownloadButton', videojs.extend(vjsButtonComponent, {
    constructor: function () {
        vjsButtonComponent.apply(this, arguments);
    },
    handleClick: function () {
        document.location = '/path/to/your/video.mp4'; //< there are many variants here so it is up to you how to get video url
    },
    buildCSSClass: function () {
        return 'vjs-control vjs-download-button';
    },
    createControlTextEl: function (button) {
        return $(button).html($('<span class="glyphicon glyphicon-download-alt"></span>').attr('title', 'Download'));
    }
}));

videojs(
    'player-id',
    {fluid: true},
    function () {
        this.getChild('controlBar').addChild('DownloadButton', {});
    }
);

(function() {
var vsComponent = videojs.getComponent('Button');

// Create the button
videojs.SampleButton = videojs.extend(vsComponent, {
    constructor: function() {
        vsComponent.call(this, videojs, null);
    }
});

// Set the text for the button
videojs.SampleButton.prototype.buttonText = 'Mute Icon';

// These are the defaults for this class.
videojs.SampleButton.prototype.options_ = {};

// videojs.Button uses this function to build the class name.
videojs.SampleButton.prototype.buildCSSClass = function() {
    // Add our className to the returned className
    return 'vjs-mute-button ' + vsComponent.prototype.buildCSSClass.call(this);
};

// videojs.Button already sets up the onclick event handler, we just need to overwrite the function
videojs.SampleButton.prototype.handleClick = function( e ) {
    // Add specific click actions here.
    console.log('clicked');
};

videojs.SampleButton.prototype.createEl = function(type, properties, attributes) {
    return videojs.createEl('button', {}, {class: 'vjs-mute-btn'});
};

var pluginFn = function(options) {
    var SampleButton  = new videojs.SampleButton(this, options);
    this.addChild(SampleButton);

    return SampleButton;
};

videojs.plugin('sampleButton', pluginFn);
})();

var properties = { "plugins": { "muteBtn": {} } }

var player = videojs('really-cool-video', properties , function() { //do something cool here });

player.sampleButton()