MenuButton

AMenuButtonclass for any popupMenu.

Constructor

Creates an instance of this class.

Parameters:
NameTypeAttributesDefaultDescription
playerPlayer

ThePlayerthat this class should be attached to.

optionsObject<optional>
{}

The key/value store of player options.

Extends

Members

(protected)hideThreshold_:Number

Hide the menu if the number of items is less than or equal to this threshold. This defaults to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list it here because every time we runcreateMenuwe need to reset the value.

Type:
  • Number

Methods

$(selector, contextopt)→ {Element|null}

Find a single DOM element matching aselector.This can be within theComponentscontentEl()or another custom context.

Parameters:
NameTypeAttributesDefaultDescription
selectorstring

A valid CSS selector, which will be passed toquerySelector.

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 missingthis.contentEl()gets used. Ifthis.contentEl()returns nothing it falls back todocument.

Overrides
Returns:

the dom element that was found, or null

Type:
Element|null

$$(selector, contextopt)→ {NodeList}

Finds all DOM element matching aselector.This can be within theComponentscontentEl()or another custom context.

Parameters:
NameTypeAttributesDefaultDescription
selectorstring

A valid CSS selector, which will be passed toquerySelectorAll.

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 missingthis.contentEl()gets used. Ifthis.contentEl()returns nothing it falls back todocument.

Overrides
Returns:

a list of dom elements that were found

Type:
NodeList

addChild(child, optionsopt,indexopt)→ {Component}

Add a childComponentinside the currentComponent.

Parameters:
NameTypeAttributesDefaultDescription
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:

TheComponentthat gets added as a child. When using a string theComponentwill get created by this process.

Type:
Component

addClass(…classesToAdd)

Add a CSS class name to theComponents element.

Parameters:
NameTypeAttributesDescription
classesToAddstring<repeatable>

One or more CSS class name to add.

blur()

Remove the focus from the actual button, not this element

buildCSSClass()→ {string}

Builds the default DOMclassName.

Returns:

The DOMclassNamefor this object.

Type:
string

buildWrapperCSSClass()→ {string}

Allow sub components to stack CSS class names for the wrapper element

Returns:

The constructed wrapper DOMclassName

Type:
string

cancelAnimationFrame(id)→ {number}

Cancels a queued callback passed toComponent#requestAnimationFrame(rAF).

If you queue an rAF callback viaComponent#requestAnimationFrame,use this function instead ofwindow.cancelAnimationFrame.If you don't, your dispose listener will not get cleaned up untilComponent#dispose!

Parameters:
NameTypeDescription
idnumber

The rAF ID to clear. The return value ofComponent#requestAnimationFrame.

Returns:

Returns the rAF ID that was cleared.

Type:
number

cancelNamedAnimationFrame(name)

Cancels a current named animation frame if it exists.

Parameters:
NameTypeDescription
namestring

The name of the requestAnimationFrame to cancel.

children()→ {Array}

Get an array of all child components

Returns:

The children

Type:
Array

clearInterval(intervalId)→ {number}

Clears an interval that gets created viawindow.setIntervalorComponent#setInterval.If you set an interval viaComponent#setIntervaluse this function instead ofwindow.clearInterval.If you don't your dispose listener will not get cleaned up untilComponent#dispose!

Parameters:
NameTypeDescription
intervalIdnumber

The id of the interval to clear. The return value ofComponent#setIntervalorwindow.setInterval.

Returns:

Returns the interval id that was cleared.

Type:
number

clearTimeout(timeoutId)→ {number}

Clears a timeout that gets created viawindow.setTimeoutorComponent#setTimeout.If you set a timeout viaComponent#setTimeoutuse this function instead ofwindow.clearTimout.If you don't your dispose listener will not get cleaned up untilComponent#dispose!

Parameters:
NameTypeDescription
timeoutIdnumber

The id of the timeout to clear. The return value ofComponent#setTimeoutorwindow.setTimeout.

Returns:

Returns the timeout id that was cleared.

Type:
number

contentEl()→ {Element}

Return theComponents DOM element. This is where children get inserted. This will usually be the the same as the element returned inComponent#el.

Returns:

The content element for thisComponent.

Type:
Element

controlText(textopt,elopt)→ {string}

Get or set the localized control text that will be used for accessibility.

NOTE: This will come from the internalmenuButton_element.

Parameters:
NameTypeAttributesDefaultDescription
textstring<optional>

Control text for element.

elElement<optional>
this.menuButton_.el()

Element to set the title on.

Returns:
  • The control text when getting
Type:
string

createEl()→ {Element}

Create theMenuButtonss DOM element.

Returns:

The element that gets created.

Type:
Element

(abstract)createItems()

Create the list of menu items. Specific to each subclass.

createMenu()→ {Menu}

Create the menu and add all items to it.

Returns:

The constructed menu

Type:
Menu

currentDimension(widthOrHeight)→ {number}

Get the computed width or the height of the component's element.

Useswindow.getComputedStyle.

Parameters:
NameTypeDescription
widthOrHeightstring

A string containing 'width' or 'height'. Whichever one you want to get.

Returns:

The dimension that gets asked for or 0 if nothing was set for that dimension.

Type:
number

currentDimensions()→ {Component~DimensionObject}

Get an object that contains computed width and height values of the component's element.

Useswindow.getComputedStyle.

Returns:

The computed dimensions of the component's element.

Type:
Component~DimensionObject

currentHeight()→ {number}

Get the computed height of the component's element.

Useswindow.getComputedStyle.

Returns:

The computed height of the component's element.

Type:
number

currentWidth()→ {number}

Get the computed width of the component's element.

Useswindow.getComputedStyle.

Returns:

The computed width of the component's element.

Type:
number

dimension(widthOrHeight, numopt,skipListenersopt)→ {number|undefined}

Get or set width or height of theComponentelement. This is the shared code for theComponent#widthandComponent#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 withwindow.getComputedStyle.This function defaults to theComponentsstyle.widthand falls back towindow.getComputedStyle.Seethisfor more information
  • If you want the computed style of the component, useComponent#currentWidthand {Component#currentHeight
Parameters:
NameTypeAttributesDescription
widthOrHeightstring

8 'width' or 'height'

numnumber|string<optional>

8 New dimension

skipListenersboolean<optional>

Skip componentresize event trigger

Returns:

The dimension when getting or 0 if unset

Type:
number|undefined

dimensions(width, height)

Set both the width and height of theComponentelement at the same time.

Parameters:
NameTypeDescription
widthnumber|string

Width to set theComponents element to.

heightnumber|string

Height to set theComponents element to.

disable()

Disable theMenuButton.Don't allow it to be clicked.

dispose()

Dispose of themenu-buttonand all child components.

el()→ {Element}

Get theComponents DOM element

Overrides
Returns:

The DOM element for thisComponent.

Type:
Element

(protected)emitTapEvents()

Emit a 'tap' events when touch event support gets detected. This gets used to support toggling the controls through a tap on the video. They get enabled because every sub-component would have extra overhead otherwise.

Listens to Events:
  • Component#event:touchstart
  • Component#event:touchmove
  • Component#event:touchleave
  • Component#event:touchcancel
  • Component#event:touchend

enable()

Enable theMenuButton.Allow it to be clicked.

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 astouchstartandtouchendtoggle 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 thetouchendevent 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

focus()

Set the focus to the actual button, not to this element

getAttribute(attribute)→ {string|null}

Get the value of an attribute on theComponents element.

Parameters:
NameTypeDescription
attributestring

Name of the attribute to get the value from.

Returns:
  • 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 attribute does not exist or has no value.
Type:
string|null

getChild(name)→ {Component|undefined}

Returns the childComponentwith the givenname.

Parameters:
NameTypeDescription
namestring

The name of the childComponentto get.

Returns:

The childComponentwith the givennameor undefined.

Type:
Component|undefined

getChildById(id)→ {Component|undefined}

Returns the childComponentwith the givenid.

Parameters:
NameTypeDescription
idstring

The id of the childComponentto get.

Returns:

The childComponentwith the givenidor undefined.

Type:
Component|undefined

getDescendant(…names)→ {Component|undefined}

Returns the descendantComponentfollowing the givent descendantnames.For instance ['foo', 'bar', 'baz'] would try to get 'foo' on the current component, 'bar' on the 'foo' component and 'baz' on the 'bar' component and return undefined if any of those don't exist.

Parameters:
NameTypeAttributesDescription
names...Array.<string>|string<repeatable>

The name of the childComponentto get.

Returns:

The descendantComponentfollowing the given descendantnamesor undefined.

Type:
Component|undefined

getIsAvailableToBeFocused(el)→ {boolean}

Determine whether or not this component is currently visible/enabled/etc...

Parameters:
NameTypeDescription
elHTMLElement

The HTML element representing the component.

Returns:

If the component can is currently visible & enabled, will betrue.Otherwise,false.

Type:
boolean

getIsFocusable(el)→ {boolean}

Determine whether or not this component can be considered as focusable component.

Parameters:
NameTypeDescription
elHTMLElement

The HTML element representing the component.

Returns:

If the component can be focused, will betrue.Otherwise,false.

Type:
boolean

getPositions()→ {Object}

Retrieves the position and size information of the component's element.

Returns:

An object withboundingClientRectandcenterproperties. -boundingClientRect:An object with propertiesx,y,width,height,top,right,bottom,andleft,representing the bounding rectangle of the element. -center:An object with propertiesxandy,representing the center point of the element.widthandheightare set to 0.

Type:
Object

handleClick(event)

Handle a click on aMenuButton.SeeClickableComponent#handleClickfor instances where this is called.

Parameters:
NameTypeDescription
eventEvent

Thekeydown,tap,orclickevent that caused this function to be called.

Listens to Events:
  • event:tap
  • event:click

handleKeyDown(event)

Handle tab, escape, down arrow, and up arrow keys forMenuButton.SeeClickableComponent#handleKeyDownfor instances where this is called.

Parameters:
NameTypeDescription
eventEvent

Thekeydownevent that caused this function to be called.

Listens to Events:
  • event:keydown

handleKeyPress(event)

Many components used to have ahandleKeyPressmethod, which was poorly named because it listened to akeydownevent. This method name now delegates tohandleKeyDown.This means anyone callinghandleKeyPresswill not see their method calls stop working.

Parameters:
NameTypeDescription
eventKeyboardEvent

The event that caused this function to be called.

(abstract)handleLanguagechange()

Handles language change for the player in components. Should be overridden by sub-components.

handleMenuKeyUp(event)

Handle akeyupevent on aMenuButton.The listener for this is added in the constructor.

Parameters:
NameTypeDescription
eventEvent

Key press event

Listens to Events:
  • event:keyup

handleMouseLeave(event)

HandlemouseleaveforMenuButton.

Parameters:
NameTypeDescription
eventEvent

Themouseleaveevent that caused this function to be called.

Listens to Events:
  • event:mouseleave

handleSubmenuKeyDown(event)

Handle akeydownevent on a sub-menu. The listener for this is added in the constructor.

Parameters:
NameTypeDescription
eventEvent

Key press event

Listens to Events:
  • event:keydown

handleSubmenuKeyPress(event)

This method name now delegates tohandleSubmenuKeyDown.This means anyone callinghandleSubmenuKeyPresswill not see their method calls stop working.

Parameters:
NameTypeDescription
eventEvent

The event that caused this function to be called.

hasClass(classToCheck)→ {boolean}

Check if a component's element has a CSS class name.

Parameters:
NameTypeDescription
classToCheckstring

CSS class name to check.

Returns:
  • True if theComponenthas the class. - False if theComponentdoes not have the class`
Type:
boolean

height(numopt,skipListenersopt)→ {number|undefined}

Get or set the height of the component based upon the CSS styles. SeeComponent#dimensionfor more detailed information.

Parameters:
NameTypeAttributesDescription
numnumber|string<optional>

The height that you want to set postfixed with '%', 'px' or nothing.

skipListenersboolean<optional>

Skip the componentresize event trigger

Returns:

The height when getting, zero if there is no height

Type:
number|undefined

hide()

Hide theComponents element if it is currently showing by adding the 'vjs-hidden` class name to it.

id()→ {string}

Get thisComponents ID

Overrides
Returns:

The id of thisComponent

Type:
string

initChildren()

Add and initialize default childComponents based upon options.

isDisposed()→ {boolean}

Determine whether or not this component has been disposed.

Returns:

If the component has been disposed, will betrue.Otherwise,false.

Type:
boolean

localize(string, tokensopt,defaultValueopt)→ {string}

Localize a string given the string in english.

If tokens are provided, it'll try and run a simple token replacement on the provided string. The tokens it looks for look like{1}with the index being 1-indexed into the tokens array.

If adefaultValueis provided, it'll use that overstring,if a value isn't found in provided language files. This is useful if you want to have a descriptive key for token replacement but have a succinct localized string and not requireen.jsonto be included.

Currently, it is used for the progress bar timing.

{
"progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
}

It is then used like so:

this.localize('progress bar timing: currentTime={1} duration{2}',
[this.player_.currentTime(), this.player_.duration()],
'{1} of {2}');

Which outputs something like:01:23 of 24:56.

Parameters:
NameTypeAttributesDescription
stringstring

The string to localize and the key to lookup in the language files.

tokensArray.<string><optional>

If the current item has token replacements, provide the tokens here.

defaultValuestring<optional>

Defaults tostring.Can be a default value to use for token replacement if the lookup key is needed to be separate.

Returns:

The localized string or if no localization exists the english string.

Type:
string

name()→ {string}

Get theComponents name. The name gets used to reference theComponentand is set during registration.

Returns:

The name of thisComponent.

Type:
string

options(obj)→ {Object}

Deep merge of options objects with new options.

Note: When bothobjandoptionscontain properties whose values are objects. The two properties get merged usingmodule:obj.merge

Parameters:
NameTypeDescription
objObject

The object that contains new options.

Returns:

A new object ofthis.options_andobjmerged together.

Type:
Object

player()→ {Player}

Return thePlayerthat theComponenthas attached to.

Returns:

The player that thisComponenthas attached to.

Type:
Player

pressButton()

Put the currentMenuButtoninto a pressed state.

ready(fn)

Bind a listener to the component's ready state. Different from event listeners in that if the ready event has already happened it will trigger the function immediately.

Parameters:
NameTypeDescription
fnReadyCallback

Function that gets called when theComponentis ready.

removeAttribute(attribute)

Remove an attribute from theComponents element.

Parameters:
NameTypeDescription
attributestring

Name of the attribute to remove.

removeChild(component)

Remove a childComponentfrom thisComponents list of children. Also removes the childComponents element from thisComponents element.

Parameters:
NameTypeDescription
componentComponent

The childComponentto remove.

removeClass(…classesToRemove)

Remove a CSS class name from theComponents element.

Parameters:
NameTypeAttributesDescription
classesToRemovestring<repeatable>

One or more CSS class name to remove.

requestAnimationFrame(fn)→ {number}

Queues up a callback to be passed to requestAnimationFrame (rAF), but with a few extra bonuses:

  • Supports browsers that do not support rAF by falling back toComponent#setTimeout.

  • The callback is turned into aComponent~GenericCallback(i.e. bound to the component).

  • Automatic cancellation of the rAF callback is handled if the component is disposed before it is called.

Parameters:
NameTypeDescription
fnComponent~GenericCallback

A function that will be bound to this component and executed just before the browser's next repaint.

Listens to Events:
Returns:

Returns an rAF ID that gets used to identify the timeout. It can also be used inComponent#cancelAnimationFrameto cancel the animation frame callback.

Type:
number

requestNamedAnimationFrame(name, fn)

Request an animation frame, but only one named animation frame will be queued. Another will never be added until the previous one finishes.

Parameters:
NameTypeDescription
namestring

The name to give this requestAnimationFrame

fnComponent~GenericCallback

A function that will be bound to this component and executed just before the browser's next repaint.

setAttribute(attribute, value)

Set the value of an attribute on theComponent's element

Parameters:
NameTypeDescription
attributestring

Name of the attribute to set.

valuestring

Value to set the attribute to.

setIcon(name)

Overwrites thesetIconmethod fromComponent.In this case, we want the icon to be appended to the menuButton.

Parameters:
NameTypeDescription
namestring

The icon name to be added.

setInterval(fn, interval)→ {number}

Creates a function that gets run everyxmilliseconds. This function is a wrapper aroundwindow.setInterval.There are a few reasons to use this one instead though.

  1. It gets cleared viaComponent#clearIntervalwhenComponent#disposegets called.
  2. The function callback will be aComponent~GenericCallback
Parameters:
NameTypeDescription
fnComponent~GenericCallback

The function to run everyxseconds.

intervalnumber

Execute the specified function everyxmilliseconds.

Listens to Events:
Returns:

Returns an id that can be used to identify the interval. It can also be be used inComponent#clearIntervalto clear the interval.

Type:
number

setTimeout(fn, timeout)→ {number}

Creates a function that runs after anxmillisecond timeout. This function is a wrapper aroundwindow.setTimeout.There are a few reasons to use this one instead though:

  1. It gets cleared viaComponent#clearTimeoutwhenComponent#disposegets called.
  2. The function callback will gets turned into aComponent~GenericCallback

Note: You can't usewindow.clearTimeouton the id returned by this function. This will cause its dispose listener not to get cleaned up! Please useComponent#clearTimeoutorComponent#disposeinstead.

Parameters:
NameTypeDescription
fnComponent~GenericCallback

The function that will be run aftertimeout.

timeoutnumber

Timeout in milliseconds to delay before executing the specified function.

Listens to Events:
Returns:

Returns a timeout ID that gets used to identify the timeout. It can also get used inComponent#clearTimeoutto clear the timeout that was set.

Type:
number

show()

Show theComponents element if it is hidden by removing the 'vjs-hidden' class name from it.

toggleClass(classToToggle, predicateopt)

Add or remove a CSS class name from the component's element.

Parameters:
NameTypeAttributesDescription
classToTogglestring

The class to add or remove. Passed to DOMTokenList's toggle()

predicateboolean|Dom.PredicateCallback<optional>

A boolean or function that returns a boolean. Passed to DOMTokenList's toggle().

triggerReady()

Trigger all the ready listeners for thisComponent.

unpressButton()

Take the currentMenuButtonout of a pressed state.

update()

Update the menu based on the current state of its items.

width(numopt,skipListenersopt)→ {number|undefined}

Get or set the width of the component based upon the CSS styles. SeeComponent#dimensionfor more detailed information.

Parameters:
NameTypeAttributesDescription
numnumber|string<optional>

The width that you want to set postfixed with '%', 'px' or nothing.

skipListenersboolean<optional>

Skip the componentresize event trigger

Returns:

The width when getting, zero if there is no width

Type:
number|undefined

Events

componentresize

Triggered when a component is resized.

Type:

dispose

Triggered when aComponentis disposed.

Type:
Properties
NameTypeAttributesDefaultDescription
bubblesboolean<optional>
false

set to false so that the dispose event does not bubble up

ready

Triggered when aComponentis ready.

Type:

tap

Triggered when aComponentis tapped.

Type:
  • MouseEvent