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.
* 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.
Preparing to export utility functions on the videojs object
closes#2182
Change el() to getEl() for consistency
Cleaned up DOM functions library
Clean up and document videojs object API
Fixed mergeOptions to modify the first object instead of a copy
More cleanup of the main video.js file and documentation
Fixed issues with mergeOptions
Cleaned up the addLanguage function
Removed unnecessary underscores in private module vars
Broke out bind, guid, and element data functions from Lib
Separated out more dom functions in to dom.js
Broke out URL functions into url.js
Removed setLocalStorage since it wasn't being used
Moved browser tests out of lib
Moved log functions into their own file
Removed trim() since it wasn't being used
Moved formatTime into its own file
Moved round into its own file and renamed roundFloat()
Moved capitalize into its own file and renamed as toTitleCase()
Moved createTimeRange into its own file
Removed Lib.arr.forEach infavor of the native forEach
Removed Lib.obj.create in favor of native Object.create (ES6-sham)
Removed obj.each in favor of native Object.getOwnPropertyNames().forEach()
Removed obj.merge and copy. Using lodash.assign instead.
Replaced Lib.obj.isPlain with lodash.isPlainObject
Removed Lib.obj.isArray in favor of the native Array.isArray
Also removed the lib.js tests file as all tests have been moved
or removed.
Removed Lib.isEmpty in favor of !Object.getOwnPropertyNames().length
Switched Util.mergeOptions and deepMerge to use new mergeOptions()
Moved Lib.TEST_VID to Html5.TEST_VID
Removed Lib references everywhere. Woo!
Attempting to fix sourcemap test errors by setting grunt-browserify version
Switched to object.assign from lodash.assign
Removed unused 'inherits' dependency
Reorganzied test files and added '.test' to file names
Combined js/core.js and js/video.js
Moved events.js into the utils directory
set attributes of video tag and not only values
add unsupported attribute to the video tag - test failing
helper to set attributes on an element from a map of values
dummy compare of html content with a sort of the attributes
ignore html attributes order for comparition
save original tag attributes
restore original tag attributes n creation and overwrite if required by settings
replace object.keys with vjs.obj.each for ie<9
fix spacing
API consistency, getAttributeValues renamed to getElementAttributes
clear variable naming
move setElementAttributes close to getElementAttributes
