Constructor
new Tech(optionsopt, ready)
Create an instance of this Tech.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
options |
Object |
<optional> |
The key/value store of player options. |
ready |
Component~ReadyCallback | Callback function to call when the |
Extends
Members
-
featuresFullscreenResize :boolean
-
Boolean indicating wether the
Techsupport fullscreen resize control. Resizing plugins using request fullscreen reloads the plugin -
featuresNativeTextTracks :boolean
-
Boolean indicating wether the
Techsupports the nativeTextTracks. This will help us integrate with nativeTextTracks if the browser supports them. -
featuresPlaybackRate :boolean
-
Boolean indicating wether the
Techsupports changing the speed at which the video plays. Examples:- Set player to play 2x (twice) as fast
- Set player to play 0.5x (half) as fast
-
featuresProgressEvents :boolean
-
Boolean indicating wether the
Techsupports theprogressevent. This is currently not triggered by video-js-swf. This will be used to determine if Tech#manualProgressOn should be called. -
featuresTimeupdateEvents :boolean
-
Boolean indicating wether the
Techsupports thetimeupdateevent. This is currently not triggered by video-js-swf. This will be used to determine if Tech#manualTimeUpdates should be called. -
featuresVolumeControl :boolean
-
Boolean indicating wether the
Techsupports volume control.- Default Value:
- true
Methods
-
static getTech(name) → {Tech|undefined}
-
Get a
Techfrom the shared list by name.Parameters:
Name Type Description namestring Name of the component to get
-
static registerTech(name, tech)
-
Registers a
Techinto a shared list for videojs.Parameters:
Name Type Description namestring Name of the
Techto register.techObject The
Techclass to register. -
static withSourceHandlers(_Tech)
-
A functional mixin for techs that want to use the Source Handler pattern. Source handlers are scripts for handling specific formats. The source handler pattern is used for adaptive formats (HLS, DASH) that manually load video data and feed it into a Source Buffer (Media Source Extensions) Example:
Tech.withSourceHandlers.call(MyTech);Parameters:
Name Type Description _TechTech The tech to add source handler functions to.
- Mixes In:
- Tech~SourceHandlerAdditions
-
$(selector, contextopt) → {Element|null}
-
Find a single DOM element matching a
selector. This can be within theComponentscontentEl()or another custom context.Parameters:
Name Type Attributes Default Description selectorstring A valid CSS selector, which will be passed to
querySelector.contextElement | string <optional>
this.contentEl() A DOM element within which to query. Can also be a selector string in which case the first matching element will get used as context. If missing
this.contentEl()gets used. Ifthis.contentEl()returns nothing it falls back todocument.Returns:
Element | null -the dom element that was found, or null
- Inherited From:
- See:
-
$$(selector, contextopt) → {NodeList}
-
Finds all DOM element matching a
selector. This can be within theComponentscontentEl()or another custom context.Parameters:
Name Type Attributes Default Description selectorstring A valid CSS selector, which will be passed to
querySelectorAll.contextElement | string <optional>
this.contentEl() A DOM element within which to query. Can also be a selector string in which case the first matching element will get used as context. If missing
this.contentEl()gets used. Ifthis.contentEl()returns nothing it falls back todocument.Returns:
NodeList -a list of dom elements that were found
- Inherited From:
- See:
-
addChild(child, optionsopt, indexopt) → {Component}
-
Add a child
Componentinside the currentComponent.Parameters:
Name Type Attributes Default Description childstring | Component The name or instance of a child to add.
optionsObject <optional>
{} The key/value store of options that will get passed to children of the child.
indexnumber <optional>
this.children_.length The index to attempt to add a child into.
Returns:
Component -The
Componentthat gets added as a child. When using a string theComponentwill get created by this process.- Inherited From:
-
addClass(classToAdd) → {Component}
-
Add a CSS class name to the
Components element.Parameters:
Name Type Description classToAddstring CSS class name to add
- Inherited From:
-
addRemoteTextTrack(options, manualCleanupopt) → {HTMLTrackElement}
-
Creates a remote text track object and returns an html track element.
Note: This can be an emulated HTMLTrackElement or a native one.
Parameters:
Name Type Attributes Default Description optionsObject See Tech#createRemoteTextTrack for more detailed properties.
manualCleanupboolean <optional>
true - When false: the TextTrack will be automatically removed from the video
element whenever the source changes - When True: The TextTrack will have to be cleaned up manually
- Deprecated:
- The default functionality for this function will be equivalent to "manualCleanup=false" in the future. The manualCleanup parameter will also be removed.
- When false: the TextTrack will be automatically removed from the video
-
addTextTrack(kind, labelopt, languageopt) → {TextTrack}
-
Create and returns a remote TextTrack object.
Parameters:
Name Type Attributes Description kindstring TextTrackkind (subtitles, captions, descriptions, chapters, or metadata)labelstring <optional>
Label to identify the text track
languagestring <optional>
Two letter language abbreviation
-
addWebVttScript_()
-
Emulate TextTracks using vtt.js if necessary
Fires:
- Tech#event:vttjsloaded
- Tech#event:vttjserror
- Tech#event:texttrackchange
-
audioTracks() → {AudioTrackList}
-
Get the
Techs AudioTrackList. -
buffered() → {TimeRange}
-
Get and create a
TimeRangeobject for buffering.Returns:
TimeRange -The time range object that was created.
-
bufferedPercent() → {number}
-
Get the percentage of the current video that is currently buffered.
Returns:
number -A number from 0 to 1 that represents the decimal percentage of the video that is buffered.
-
abstract buildCSSClass() → {string}
-
Builds the default DOM class name. Should be overriden by sub-components.
Returns:
string -The DOM class name for this object.
- Inherited From:
-
children() → {Array}
-
Get an array of all child components
Returns:
Array -The children
- Inherited From:
-
cleanupAutoTextTracks()
-
Remove any TextTracks added via addRemoteTextTrack that are flagged for automatic garbage collection
-
clearInterval(intervalId) → {number}
-
Clears an interval that gets created via
window.setIntervalor Component#setInterval. If you set an inteval via Component#setInterval use this function instead ofwindow.clearInterval. If you don't your dispose listener will not get cleaned up until Component#dispose!Parameters:
Name Type Description intervalIdnumber The id of the interval to clear. The return value of Component#setInterval or
window.setInterval.Returns:
number -Returns the interval id that was cleared.
- Inherited From:
- See:
-
clearTimeout(timeoutId) → {number}
-
Clears a timeout that gets created via
window.setTimeoutor Component#setTimeout. If you set a timeout via Component#setTimeout use this function instead ofwindow.clearTimout. If you don't your dispose listener will not get cleaned up until Component#dispose!Parameters:
Name Type Description timeoutIdnumber The id of the timeout to clear. The return value of Component#setTimeout or
window.setTimeout.Returns:
number -Returns the timeout id that was cleared.
- Inherited From:
- See:
-
clearTracks(types)
-
Clear out a single
TrackListor an array ofTrackListsgiven their names.Note: Techs without source handlers should call this between sources for
video&audiotracks. You don't want to use them between tracks!Parameters:
Name Type Description typesArray.<string> | string TrackList names to clear, valid names are
video,audio, andtext. -
contentEl() → {Element}
-
Return the
Components DOM element. This is where children get inserted. This will usually be the the same as the element returned in Component#el.Returns:
Element -The content element for this
Component.- Inherited From:
-
createEl(tagNameopt, propertiesopt, attributesopt) → {Element}
-
Create the
Components DOM element.Parameters:
Name Type Attributes Description tagNamestring <optional>
Element's DOM node type. e.g. 'div'
propertiesObject <optional>
An object of properties that should be set.
attributesObject <optional>
An object of attributes that should be set.
Returns:
Element -The element that gets created.
- Inherited From:
-
createRemoteTextTrack(options) → {HTMLTrackElement}
-
Create an emulated TextTrack for use by addRemoteTextTrack
This is intended to be overridden by classes that inherit from Tech in order to create native or custom TextTracks.
Parameters:
Name Type Description optionsObject The object should contain the options to initialize the TextTrack with.
Properties
Name Type Attributes Description kindstring <optional>
TextTrackkind (subtitles, captions, descriptions, chapters, or metadata).labelstring <optional>
Label to identify the text track
languagestring <optional>
Two letter language abbreviation.
-
currentDimension(widthOrHeight) → {number}
-
Get the width or the height of the
Componentelements computed style. Useswindow.getComputedStyle.Parameters:
Name Type Description widthOrHeightstring A string containing 'width' or 'height'. Whichever one you want to get.
Returns:
number -The dimension that gets asked for or 0 if nothing was set for that dimension.
- Inherited From:
-
currentDimensions() → {Component~DimensionObject}
-
Get an object that contains width and height values of the
Components computed style.- Inherited From:
-
currentHeight() → {number}
-
Get the height of the
Components computed style. Useswindow.getComputedStyle.Returns:
number -height The height of the
Components computed style.- Inherited From:
-
currentWidth() → {number}
-
Get the width of the
Components computed style. Useswindow.getComputedStyle.Returns:
number -width The width of the
Components computed style.- Inherited From:
-
dimension(widthOrHeight, numopt, skipListenersopt) → {Component}
-
Get or set width or height of the
Componentelement. This is the shared code for the Component#width and Component#height.Things to know:
- If the width or height in an number this will return the number postfixed with 'px'.
- If the width/height is a percent this will return the percent postfixed with '%'
- Hidden elements have a width of 0 with
window.getComputedStyle. This function defaults to theComponentsstyle.widthand falls back towindow.getComputedStyle. See this for more information - If you want the computed style of the component, use Component#currentWidth and {Component#currentHeight
Parameters:
Name Type Attributes Description widthOrHeightstring 8 'width' or 'height'
numnumber | string <optional>
8 New dimension
skipListenersboolean <optional>
Skip resize event trigger
Fires:
Returns:
Component -- the dimension when getting or 0 if unset
- Returns itself when setting; method can be chained.
- Inherited From:
-
dimensions(width, height) → {Component}
-
Set both the width and height of the
Componentelement at the same time.Parameters:
Name Type Description widthnumber | string Width to set the
Components element to.heightnumber | string Height to set the
Components element to.- Inherited From:
-
dispose()
-
Turn off all event polyfills, clear the
Techs AudioTrackList, VideoTrackList, and TextTrackList, and dispose of this Tech.Fires:
- Overrides:
-
el() → {Element}
-
Get the
Components DOM elementReturns:
Element -The DOM element for this
Component.- Inherited From:
-
enableTouchActivity()
-
This function reports user activity whenever touch events happen. This can get turned off by any sub-components that wants touch events to act another way.
Report user touch activity when touch events occur. User activity gets used to determine when controls should show/hide. It is simple when it comes to mouse events, because any mouse event should show the controls. So we capture mouse events that bubble up to the player and report activity when that happens. With touch events it isn't as easy as
touchstartandtouchendtoggle player controls. So touch events can't help us at the player level either.User activity gets checked asynchronously. So what could happen is a tap event on the video turns the controls off. Then the
touchendevent bubbles up to the player. Which, if it reported user activity, would turn the controls right back on. We also don't want to completely block touch events from bubbling up. Furthermore atouchmoveevent and anything other than a tap, should not turn controls back on.Listens to Events:
- Component#event:touchstart
- Component#event:touchmove
- Component#event:touchend
- Component#event:touchcancel
- Inherited From:
-
error(erropt) → {MediaError|null}
-
Get or set an error on the Tech.
Parameters:
Name Type Attributes Description errMediaError <optional>
Error to set on the Tech
-
getAttribute(attribute) → {string|null}
-
Get the value of an attribute on the
Components element.Parameters:
Name Type Description attributestring Name of the attribute to get the value from.
Returns:
string | null -- The value of the attribute that was asked for.
- Can be an empty string on some browsers if the attribute does not exist or has no value - Most browsers will return null if the attibute does not exist or has no value.
- Inherited From:
- See:
- The value of the attribute that was asked for.
-
getChild(name) → {Component|undefined}
-
Returns the child
Componentwith the givenname.Parameters:
Name Type Description namestring The name of the child
Componentto get.- Inherited From:
-
getChildById(id) → {Component|undefined}
-
Returns the child
Componentwith the givenid.Parameters:
Name Type Description idstring The id of the child
Componentto get.- Inherited From:
-
hasClass(classToCheck) → {boolean}
-
Check if a component's element has a CSS class name.
Parameters:
Name Type Description classToCheckstring CSS class name to check.
Returns:
boolean -- True if the
Componenthas the class.- False if the `Component` does not have the class`
- Inherited From:
- True if the
-
height(numopt, skipListenersopt) → {Component|number|string}
-
Get or set the height of the component based upon the CSS styles. See Component#dimension for more detailed information.
Parameters:
Name Type Attributes Description numnumber | string <optional>
The height that you want to set postfixed with '%', 'px' or nothing.
skipListenersboolean <optional>
Skip the resize event trigger
Returns:
Component | number | string -- The width when getting, zero if there is no width. Can be a string
postpixed with '%' or 'px'. - Returns itself when setting; method can be chained.
- Inherited From:
- The width when getting, zero if there is no width. Can be a string
-
hide() → {Component}
-
Hide the
Components element if it is currently showing by adding the 'vjs-hidden` class name to it.- Inherited From:
-
id() → {string}
-
Get this
Components IDReturns:
string -The id of this
Component- Inherited From:
-
initChildren()
-
Add and initialize default child
Components based upon options.- Inherited From:
-
initTextTrackListeners()
-
Turn on listeners for TextTrackList events. This adds EventTarget~EventListeners for
texttrackchange,addtrackandremovetrack.Fires:
-
initTrackListeners()
-
Turn on listeners for VideoTrackList and {AudioTrackList events. This adds EventTarget~EventListeners for
addtrack, andremovetrack.Fires:
-
localize(string) → {string}
-
Localize a string given the string in english.
Parameters:
Name Type Description stringstring The string to localize.
Returns:
string -The localized string or if no localization exists the english string.
- Inherited From:
-
manualProgressOff()
-
Turn off the polyfill for
progressevents that was created in Tech#manualProgressOn -
manualProgressOn()
-
Polyfill the
progressevent for browsers that don't support it natively.- See:
-
manualTimeUpdatesOff()
-
Turn off the polyfill for
timeupdateevents that was created in Tech#manualTimeUpdatesOn -
manualTimeUpdatesOn()
-
Polyfill the
timeupdateevent for browsers that don't support it. -
name() → {string}
-
Get the
Components name. The name gets used to reference theComponentand is set during registration.Returns:
string -The name of this
Component.- Inherited From:
-
off(firstopt, secondopt, thirdopt) → {Component}
-
Remove an event listener from this
Components element. If the second argument is exluded all listeners for the type passed in as the first argument will be removed.Parameters:
Name Type Attributes Description firststring | Component | Array.<string> <optional>
The event name, and array of event names, or another
Component.secondEventTarget~EventListener | string | Array.<string> <optional>
The listener function, an event name, or an Array of events names.
thirdEventTarget~EventListener <optional>
The event handler if
firstis aComponentandsecondis an event name or an Array of event names.- Inherited From:
-
on(firstopt, secondopt, thirdopt) → {Component}
-
Add an
event listenerto thisComponents element.The benefit of using this over the following:
VjsEvents.on(otherElement, 'eventName', myFunc)otherComponent.on('eventName', myFunc)Is that the listeners will get cleaned up when either component gets disposed.
- It will also bind
myComponentas the context ofmyFunc.NOTE: If you remove the element from the DOM that has used
onyou need toclean up references using: `myComponent.trigger(el, 'dispose')` This will also allow the browser to garbage collect it. In special cases such as with `window` and `document`, which are both permanent, this is not necessary.
Parameters:
Name Type Attributes Description firststring | Component | Array.<string> <optional>
The event name, and array of event names, or another
Component.secondEventTarget~EventListener | string | Array.<string> <optional>
The listener function, an event name, or an Array of events names.
thirdEventTarget~EventListener <optional>
The event handler if
firstis aComponentandsecondis an event name or an Array of event names.Listens to Events:
- Inherited From:
-
onDurationChange(event)
-
Update our internal duration on a
durationchangeevent by calling Tech#duration.Parameters:
Name Type Description eventEventTarget~Event The
durationchangeevent that caused this to run.Listens to Events:
- Tech#event:durationchange
-
one(firstopt, secondopt, thirdopt) → {Component}
-
Add an event listener that gets triggered only once and then gets removed.
Parameters:
Name Type Attributes Description firststring | Component | Array.<string> <optional>
The event name, and array of event names, or another
Component.secondEventTarget~EventListener | string | Array.<string> <optional>
The listener function, an event name, or an Array of events names.
thirdEventTarget~EventListener <optional>
The event handler if
firstis aComponentandsecondis an event name or an Array of event names.- Inherited From:
-
options(obj) → {Object}
-
Deep merge of options objects with new options.
Note: When both
objandoptionscontain properties whose values are objects. The two properties get merged using module:mergeOptionsParameters:
Name Type Description objObject The object that contains new options.
Returns:
Object -A new object of
this.options_andobjmerged together.- Inherited From:
- Deprecated:
- since version 5
-
played() → {TimeRange}
-
Returns the
TimeRanges that have been played through for the current source.NOTE: This implementation is incomplete. It does not track the played
TimeRange. It only checks wether the source has played at all or not.Returns:
TimeRange -- A single time range if this video has played
- An empty set of ranges if not.
- A single time range if this video has played
-
player() → {Player}
-
Return the Player that the
Componenthas attached to.- Inherited From:
-
ready(fn, syncopt) → {Component}
-
Bind a listener to the component's ready state. If the ready event has already happened it will trigger the function immediately.
Parameters:
Name Type Attributes Default Description fnComponent~ReadyCallback A function to call when ready is triggered.
syncboolean <optional>
false Execute the listener synchronously if
Componentis ready.- Inherited From:
-
remoteTextTrackEls() → {HTMLTrackElementList}
-
Get The
Techs {HTMLTrackElementList}, which are the elements in the DOM that are being used as TextTracks.Returns:
HTMLTrackElementList -The current HTML track elements that exist for the tech.
-
remoteTextTracks() → {TextTrackList}
-
Get the
Techs remote TextTrackList, which is created from elements that were added to the DOM. -
removeAttribute(attribute) → {Component}
-
Remove an attribute from the
Components element.Parameters:
Name Type Description attributestring Name of the attribute to remove.
- Inherited From:
- See:
-
removeChild(component)
-
Remove a child
Componentfrom thisComponents list of children. Also removes the childComponents element from thisComponents element.Parameters:
Name Type Description componentComponent The child
Componentto remove.- Inherited From:
-
removeClass(classToRemove) → {Component}
-
Remove a CSS class name from the
Components element.Parameters:
Name Type Description classToRemovestring CSS class name to remove
- Inherited From:
-
removeRemoteTextTrack(track)
-
Remove a remote text track from the remote
TextTrackList.Parameters:
Name Type Description trackTextTrack TextTrackto remove from theTextTrackList -
abstract reset()
-
Reset the tech, which will removes all sources and reset the internal readyState.
-
setAttribute(attribute, value) → {Component}
-
Set the value of an attribute on the
Component's elementParameters:
Name Type Description attributestring Name of the attribute to set.
valuestring Value to set the attribute to.
- Inherited From:
- See:
-
setCurrentTime()
-
Causes a manual time update to occur if Tech#manualTimeUpdatesOn was previously called.
Fires:
-
setInterval(fn, interval) → {number}
-
Creates a function that gets run every
xmilliseconds. This function is a wrapper aroundwindow.setInterval. There are a few reasons to use this one instead though.- It gets cleared via Component#clearInterval when Component#dispose gets called.
- The function callback will be a Component~GenericCallback
Parameters:
Name Type Description fnComponent~GenericCallback The function to run every
xseconds.intervalnumber Execute the specified function every
xmilliseconds.Listens to Events:
Returns:
number -Returns an id that can be used to identify the interval. It can also be be used in Component#clearInterval to clear the interval.
- Inherited From:
- See:
-
abstract setPoster()
-
A method to set a poster from a
Tech. -
setTimeout(fn, timeout) → {number}
-
Creates a function that runs after an
xmillisecond timeout. This function is a wrapper aroundwindow.setTimeout. There are a few reasons to use this one instead though:- It gets cleared via Component#clearTimeout when Component#dispose gets called.
- The function callback will gets turned into a Component~GenericCallback
Note: You can use
window.clearTimeouton the id returned by this function. This will cause its dispose listener not to get cleaned up! Please use Component#clearTimeout or Component#dispose.Parameters:
Name Type Description fnComponent~GenericCallback The function that will be run after
timeout.timeoutnumber Timeout in milliseconds to delay before executing the specified function.
Listens to Events:
Returns:
number -Returns a timeout ID that gets used to identify the timeout. It can also get used in Component#clearTimeout to clear the timeout that was set.
- Inherited From:
- See:
-
show() → {Component}
-
Show the
Components element if it is hidden by removing the 'vjs-hidden' class name from it.- Inherited From:
-
stopTrackingCurrentTime()
-
Stop the interval function created in Tech#trackCurrentTime so that the
timeupdateevent is no longer triggered.Listens to Events:
- {Tech#event:pause}
-
stopTrackingProgress()
-
Turn off the polyfill for
progressevents that was created in Tech#manualProgressOn Stop manually tracking progress events by clearing the interval that was set in Tech#trackProgress. -
textTracks() → {TextTrackList}
-
Get the
Techs TextTrackList. -
toggleClass(classToToggle, predicateopt) → {Component}
-
Add or remove a CSS class name from the component's element.
classToTogglegets added when Component#hasClass would return false.classToTogglegets removed when Component#hasClass would return true.
Parameters:
Name Type Attributes Description classToTogglestring The class to add or remove based on (@link Component#hasClass}
predicateboolean | Dom~predicate <optional>
An Dom~predicate function or a boolean
- Inherited From:
-
trackCurrentTime()
-
Sets up an interval function to track current time and trigger
timeupdateevery 250 milliseconds.Listens to Events:
- Tech#event:play
-
trackProgress(event)
-
This is used to trigger a
progressevent when the buffered percent changes. It sets an interval function that will be called every 500 milliseconds to check if the buffer end percent has changed.This function is called by Tech#manualProgressOn
Parameters:
Name Type Description eventEventTarget~Event The
readyevent that caused this to run.Fires:
Listens to Events:
-
trigger(event, hashopt) → {Component}
-
Trigger an event on an element.
Parameters:
Name Type Attributes Description eventEventTarget~Event | Object | string The event name, and Event, or an event-like object with a type attribute set to the event name.
hashObject <optional>
Data hash to pass along with the event
- Inherited From:
-
triggerReady()
-
Trigger all the ready listeners for this
Component.Fires:
- Inherited From:
-
videoTracks() → {VideoTrackList}
-
Get the
Techs VideoTrackList. -
width(numopt, skipListenersopt) → {Component|number|string}
-
Get or set the width of the component based upon the CSS styles. See Component#dimension for more detailed information.
Parameters:
Name Type Attributes Description numnumber | string <optional>
The width that you want to set postfixed with '%', 'px' or nothing.
skipListenersboolean <optional>
Skip the resize event trigger
Returns:
Component | number | string -- The width when getting, zero if there is no width. Can be a string
postpixed with '%' or 'px'. - Returns itself when setting; method can be chained.
- Inherited From:
- The width when getting, zero if there is no width. Can be a string
Type Definitions
-
SourceObject
-
An Object containing a structure like:
{src: 'url', type: 'mimetype'}or string that just contains the src url alone.var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};var SourceString = 'http://example.com/some-video.mp4';
Properties:
Name Type Description srcstring The url to the source
typestring The mime type of the source
Events
-
audiotrackchange
-
Triggered when tracks are added or removed on the Tech AudioTrackList
Type:
-
dispose
-
Triggered when a
Componentis disposed.Type:
Listeners of This Event:
Properties:
Name Type Attributes Default Description bubblesboolean <optional>
false set to false so that the close event does not bubble up
- Inherited From:
-
progress
-
See Player#progress
Type:
-
ready
-
Triggered when a
Componentis ready.Type:
Listeners of This Event:
- Inherited From:
-
resize
-
Triggered when a component is resized.
Type:
- Inherited From:
-
tap
-
Triggered when a
Componentis tapped.Type:
- Inherited From:
-
texttrackchange
-
Triggered when tracks are added or removed on the Tech TextTrackList
Type:
-
timeupdate
-
A manual
timeupdateevent.Type:
-
timeupdate
-
Triggered at an interval of 250ms to indicated that time is passing in the video.
Type:
-
videotrackchange
-
Triggered when tracks are added or removed on the Tech VideoTrackList
Type:
-
vttjsloaded
-
Fired when vtt.js is loaded.
Type:
-
vttjsloaded
-
Fired when vtt.js was not loaded due to an error
Type: