This is a follow-up to this fix in VHS, after which default in-manifest subtitles were still not being correctly enabled. The reason is because Video.js's text track preselection logic was running before the media groups were set up in VHS.
Text track preselection should happen on `loadedmetadata` instead of `loadstart`. According to the HTML spec, text track data is available on `loadedmetadata`, so we should be waiting until then to make preselection decisions.
When preselecting a new track based on user preference, make sure that the language is actually set and that the track we're testing is either a captions or a subtitles track.
Fixes#5553
Trigger the change event on the next tick. This means that multiple changes to a track's mode will only result in a single change event on its associated TextTrackList rather than 3 events as it may be currently.
Fixes#5159
When providing the TextTrackDisplay component with track settings overrides, currently colour codes with only three digits are supported. This updates it so that 6 digit hex codes are also accepted.
Use ResizeObserver when available for better and more performant resizing information, otherwise, fall back to a throttled resize event on an iframe that's the size of the player.
Allows a video.js user to disable this by setting resizeManager: false as an option since the component will not be initialized.
Add a debounce util.
This reverts #4800 (e0ed0b5) because we end up getting two playerresize events with the dimension methods now.
A we retained a lot of references to DOM elements in various components. Here we clear it up. Also, make sure that we remove unused listeners as they can retain objects as well.
Update evented mixin to null out the eventBusEl_ after the component is disposed.
Add a feature for components, to tell it not to auto-initialize the evented mixin.
Re-enable the tests that were removed in #4640.
We added a feature so that remote text tracks can auto-removed when a source changes. However, in 6.x we changed the source behavior to be asynchronous meaning that some text tracks were accidentally being removed when they weren't supposed to be.
For example:
```js
var player = videojs('my-player');
player.src({src: 'video.mp4', type: 'video/mp4'});
// set second arg to false so that they get auto-removed on source change
player.addRemoteTextTrack({kind: 'captions', src: 'text.vtt', srclang: 'en'}, false);
```
Now when the player loads, this captions track is actually missing because it was removed.
Instead of adding auto-removal tracks immediately to the list, wait until we've selected a source before adding them in.
Fixes#4403 and #4315.
Previously timeupdate would fire before the video was playing, and the tech was not ready. This caused issues when preload was set to auto, because cuechange would fire before the video was even started for cues with a startTime of 0.
Wait for tech to be ready before watching for timeupdate
update unit tests to use TechFaker
Add a unit test to verify that we wait for Tech to be ready.
Add middleware support. Middleware can function as go-between between the player and the tech. For example, it can modify the duration that the tech returns to the player. In addition, middleware allow for supporting custom video sources and types.
Currently, middleware can only intercept timeline methods like duration, currentTime, and setCurrentTime.
For example,
```js
videojs.use('video/foo', {
setSource(src, next) {
next(null, {
src: 'http://example.com/video.mp4',
type: 'video/mp4'
});
}
});
```
Will allow you to set a source with type `video/foo` which will play back `video.mp4`.
This makes setting the source asynchronous, which aligns it with the spec a bit more. Methods like play can still be called synchronously on the player after setting the source and the player will play once the source has loaded.
`sourceOrder` option was removed as well and it will now always use source ordering.
BREAKING CHANGE: setting the source is now asynchronous. `sourceOrder` option removed and made the default.
Prevent techs (and others) from being registered via registerComponent.
* `registerComponent` now throws if given an object that is not a subclass of Component (or Component itself).
* `registerComponent` now throws if given a non-empty string as its name argument.
BREAKING CHANGE: registerComponent now throws if no name or not a component is passed in.
Chrome has a bug where if you add a remote text track and try to use it programmatically, you won't get any cues displayed. So, just switch to always emulated mode.
Also, add IS_SAFARI and IS_ANY_SAFARI to the browsers.
* Refactored ChaptersButton, broke logic into several methods.
* Fixed the issues in #3447 about in some browsers tracks have an empty cues array instead of null. * Now we always subscribe to load event, and force an update. Also, track changes are handled, so chapters track can now be changed at runtime.
* Fixed the issue in #3447 about chapters menu items are not selectable. Now automatic update of the selected item based on player time works fine.
* Implemented the usage of the chapters track's label attribute as menu title, if it's present. If not, we fall back to the localized "Chapters" title.
* Refined the menu styling, so that vjs-menu-title telement won't get the hover effect, It would confuse users, because they might believe that the title item is a clickable item too.
Tech#addRemoteTextTrack now accepts a second parameter - a boolean named manualCleanup which defaults to true preserving backwards compatibility. When that value is set to false the text track will be removed from the video element whenever a source change occurs.
