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Popup

A popup component.

Examples

Create a popup

let popup = new Popup();
// Set an event listener that will fire
// any time the popup is opened
popup.on('open', () => {
  console.log('popup was opened');
});

Create a popup

let popup = new Popup();
// Set an event listener that will fire
// any time the popup is closed
popup.on('close', () => {
  console.log('popup was closed');
});

let markerHeight = 50, markerRadius = 10, linearOffset = 25;
let popupOffsets = {
 'top': [0, 0],
 'top-left': [0,0],
 'top-right': [0,0],
 'bottom': [0, -markerHeight],
 'bottom-left': [linearOffset, (markerHeight - markerRadius + linearOffset) * -1],
 'bottom-right': [-linearOffset, (markerHeight - markerRadius + linearOffset) * -1],
 'left': [markerRadius, (markerHeight - markerRadius) * -1],
 'right': [-markerRadius, (markerHeight - markerRadius) * -1]
 };
let popup = new Popup({offset: popupOffsets, className: 'my-class'})
  .setLngLat(e.lngLat)
  .setHTML("<h1>Hello World!</h1>")
  .setMaxWidth("300px")
  .addTo(map);

See

Events

Event open of type Event will be fired when the popup is opened manually or programmatically.

Event close of type Event will be fired when the popup is closed manually or programmatically.

Extends

Constructors

new Popup()

new Popup(options?: PopupOptions): Popup

Parameters

Parameter Type Description
options? PopupOptions the options

Returns

Popup

Overrides

Evented.constructor

Defined in

src/ui/popup.ts:176

Methods

addClassName()

addClassName(className: string): Popup

Adds a CSS class to the popup container element.

Parameters

Parameter Type Description
className string Non-empty string with CSS class name to add to popup container

Returns

Popup

Example

let popup = new Popup()
popup.addClassName('some-class')

Defined in

src/ui/popup.ts:479


addTo()

addTo(map: Map): this

Adds the popup to a map.

Parameters

Parameter Type Description
map Map The MapLibre GL JS map to add the popup to.

Returns

this

Example

new Popup()
  .setLngLat([0, 0])
  .setHTML("<h1>Null Island</h1>")
  .addTo(map);

See

Defined in

src/ui/popup.ts:197


getElement()

getElement(): HTMLElement

Returns the Popup's HTML element.

Returns

HTMLElement

element

Example

Change the Popup element's font size

let popup = new Popup()
  .setLngLat([-96, 37.8])
  .setHTML("<p>Hello World!</p>")
  .addTo(map);
let popupElem = popup.getElement();
popupElem.style.fontSize = "25px";

Defined in

src/ui/popup.ts:354


getLngLat()

getLngLat(): LngLat

Returns the geographical location of the popup's anchor.

The longitude of the result may differ by a multiple of 360 degrees from the longitude previously set by setLngLat because Popup wraps the anchor longitude across copies of the world to keep the popup on screen.

Returns

LngLat

The geographical location of the popup's anchor.

Defined in

src/ui/popup.ts:280


getMaxWidth()

getMaxWidth(): string

Returns the popup's maximum width.

Returns

string

The maximum width of the popup.

Defined in

src/ui/popup.ts:417


isOpen()

isOpen(): boolean

Returns

boolean

true if the popup is open, false if it is closed.

Defined in

src/ui/popup.ts:232


listens()

listens(type: string): boolean

Returns a true if this instance of Evented or any forwardeed instances of Evented have a listener for the specified type.

Parameters

Parameter Type Description
type string The event type

Returns

boolean

true if there is at least one registered listener for specified event type, false otherwise

Inherited from

Evented.listens

Defined in

src/util/evented.ts:161


off()

off(type: string, listener: Listener): Popup

Removes a previously registered event listener.

Parameters

Parameter Type Description
type string The event type to remove listeners for.
listener Listener The listener function to remove.

Returns

Popup

Inherited from

Evented.off

Defined in

src/util/evented.ts:86


on()

on(type: string, listener: Listener): this

Adds a listener to a specified event type.

Parameters

Parameter Type Description
type string The event type to add a listen for.
listener Listener The function to be called when the event is fired. The listener function is called with the data object passed to fire, extended with target and type properties.

Returns

this

Inherited from

Evented.on

Defined in

src/util/evented.ts:73


once()

once(type: string, listener?: Listener): Promise<any> | Popup

Adds a listener that will be called only once to a specified event type.

The listener will be called first time the event fires after the listener is registered.

Parameters

Parameter Type Description
type string The event type to listen for.
listener? Listener The function to be called when the event is fired the first time.

Returns

Promise<any> | Popup

this or a promise if a listener is not provided

Inherited from

Evented.once

Defined in

src/util/evented.ts:102


remove()

remove(): this

Removes the popup from the map it has been added to.

Returns

this

Example

let popup = new Popup().addTo(map);
popup.remove();

Defined in

src/ui/popup.ts:245


removeClassName()

removeClassName(className: string): Popup

Removes a CSS class from the popup container element.

Parameters

Parameter Type Description
className string Non-empty string with CSS class name to remove from popup container

Returns

Popup

Example

let popup = new Popup()
popup.removeClassName('some-class')

Defined in

src/ui/popup.ts:497


setDOMContent()

setDOMContent(htmlNode: Node): this

Sets the popup's content to the element provided as a DOM node.

Parameters

Parameter Type Description
htmlNode Node A DOM node to be used as content for the popup.

Returns

this

Example

Create an element with the popup content

let div = document.createElement('div');
div.innerHTML = 'Hello, world!';
let popup = new Popup()
  .setLngLat(e.lngLat)
  .setDOMContent(div)
  .addTo(map);

Defined in

src/ui/popup.ts:448


setEventedParent()

setEventedParent(parent?: Evented, data?: any): Popup

Bubble all events fired by this instance of Evented to this parent instance of Evented.

Parameters

Parameter Type
parent? Evented
data? any

Returns

Popup

Inherited from

Evented.setEventedParent

Defined in

src/util/evented.ts:172


setHTML()

setHTML(html: string): this

Sets the popup's content to the HTML provided as a string.

This method does not perform HTML filtering or sanitization, and must be used only with trusted content. Consider Popup#setText if the content is an untrusted text string.

Parameters

Parameter Type Description
html string A string representing HTML content for the popup.

Returns

this

Example

let popup = new Popup()
  .setLngLat(e.lngLat)
  .setHTML("<h1>Hello World!</h1>")
  .addTo(map);

See

Defined in

src/ui/popup.ts:398


setLngLat()

setLngLat(lnglat: LngLatLike): this

Sets the geographical location of the popup's anchor, and moves the popup to it. Replaces trackPointer() behavior.

Parameters

Parameter Type Description
lnglat LngLatLike The geographical location to set as the popup's anchor.

Returns

this

Defined in

src/ui/popup.ts:289


setMaxWidth()

setMaxWidth(maxWidth: string): this

Sets the popup's maximum width. This is setting the CSS property max-width. Available values can be found here: https://developer.mozilla.org/en-US/docs/Web/CSS/max-width

Parameters

Parameter Type Description
maxWidth string A string representing the value for the maximum width.

Returns

this

Defined in

src/ui/popup.ts:427


setOffset()

setOffset(offset?: Offset): this

Sets the popup's offset.

Parameters

Parameter Type Description
offset? Offset Sets the popup's offset.

Returns

this

Defined in

src/ui/popup.ts:509


setSubpixelPositioning()

setSubpixelPositioning(value: boolean): void

Set the option to allow subpixel positioning of the popup by passing a boolean

Parameters

Parameter Type Description
value boolean When boolean is true, subpixel positioning is enabled for the popup.

Returns

void

Example

let popup = new Popup()
popup.setSubpixelPositioning(true);

Defined in

src/ui/popup.ts:545


setText()

setText(text: string): this

Sets the popup's content to a string of text.

This function creates a Text node in the DOM, so it cannot insert raw HTML. Use this method for security against XSS if the popup content is user-provided.

Parameters

Parameter Type Description
text string Textual content for the popup.

Returns

this

Example

let popup = new Popup()
  .setLngLat(e.lngLat)
  .setText('Hello, world!')
  .addTo(map);

Defined in

src/ui/popup.ts:374


toggleClassName()

toggleClassName(className: string): boolean

Add or remove the given CSS class on the popup container, depending on whether the container currently has that class.

Parameters

Parameter Type Description
className string Non-empty string with CSS class name to add/remove

Returns

boolean

if the class was removed return false, if class was added, then return true, undefined if there is no container

Example

let popup = new Popup()
popup.toggleClassName('toggleClass')

Defined in

src/ui/popup.ts:528


trackPointer()

trackPointer(): this

Tracks the popup anchor to the cursor position on screens with a pointer device (it will be hidden on touchscreens). Replaces the setLngLat behavior. For most use cases, set closeOnClick and closeButton to false.

Returns

this

Example

let popup = new Popup({ closeOnClick: false, closeButton: false })
  .setHTML("<h1>Hello World!</h1>")
  .trackPointer()
  .addTo(map);

Defined in

src/ui/popup.ts:321