mirror of
https://github.com/videojs/video.js.git
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92 lines
2.2 KiB
Markdown
92 lines
2.2 KiB
Markdown
Components
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===
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The Video.js player is built on top of a simple, custom UI components architecture. The player class and all control classes inherit from the Component class, or a subclass of Component.
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```js
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_V_.Control = _V_.Component.extend({});
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_V_.Button = _V_.Control.extend({});
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_V_.PlayToggle = _V_.Button.extend({});
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```
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(The Class interface itself is provided using John Resig's [simple class inheritance](http://ejohn.org/blog/simple-javascript-inheritance/) also found in [JSNinja](http://jsninja.com).
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The UI component architecture makes it easier to add child components to a parent component and build up an entire user interface, like the controls for the Video.js player.
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```js
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// Adding a new control to the player
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myPlayer.addChild('BigPlayButton');
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```
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Every component has an associated DOM element, and when you add a child component, it inserts the element of that child into the element of the parent.
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```js
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myPlayer.addChild('BigPlayButton');
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```
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Results in:
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```html
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<!-- Player Element -->
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<div class="video-js">
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<!-- BigPlayButton Element -->
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<div class="vjs-big-play-button"></div>
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</div>
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```
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The actual default component structure of the Video.js player looks something like this:
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```
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Player
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PosterImage
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TextTrackDisplay
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LoadingSpinner
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BigPlayButton
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ControlBar
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PlayToggle
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FullscreenToggle
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CurrentTimeDisplay
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TimeDivider
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DurationDisplay
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RemainingTimeDisplay
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ProgressControl
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SeekBar
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LoadProgressBar
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PlayProgressBar
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SeekHandle
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VolumeControl
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VolumeBar
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VolumeLevel
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VolumeHandle
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MuteToggle
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```
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Component Methods
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-----------------
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### addChild() ###
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Add a child component to myComponent. This will also insert the child component's DOM element into myComponent's element.
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```js
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myComponent.addChild('');
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```
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myPlayer.addChild('BigPlayButton');
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myPlayer.removeChild('BigPlayButton');
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myPlayer.getChild('BiPlayButton');
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myPlayer.children();
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myPlayer.getChildById('biPlayButton');
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myPlayer.removeChildById('my-player-big-play-button');
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el();
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getContentEl();
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getChildren();
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getParent();
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#home_player_big-play-button
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