react-map-gl/docs/components/interactive-map.md
2018-10-23 14:17:36 -07:00

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# InteractiveMap
This component renders `MapboxGL` and provides full interactivity support.
It uses `StaticMap` underneath to render the final map component.
This is the `default` exported component from `ReactMapGL`.
```js
import {Component} from 'react';
import ReactMapGL from 'react-map-gl';
class Map extends Component {
render() {
return (
<ReactMapGL
width={400}
height={400}
latitude={37.7577}
longitude={-122.4376}
zoom={8}
onViewportChange={(viewport) => {
const {width, height, latitude, longitude, zoom} = viewport;
// call `setState` and use the state to update the map.
}}
/>
);
}
}
```
## Properties
### Initialization
Inherit the following props from [StaticMap](/docs/components/static-map.md):
- `attributionControl` {Bool}
- `disableTokenWarning` {Bool}
- `gl` {WebGLContext}
- `mapboxApiAccessToken` {String}
- `mapOptions` {Object}
- `preserveDrawingBuffer` {Bool}
- `preventStyleDiffing` {Bool}
- `reuseMaps` {Bool}
- `transformRequest` {Function}
### Map State
Inherit the following props from [StaticMap](/docs/components/static-map.md):
- `mapStyle` {String | Object | Immutable.Map}
- `width` {Number | String} (required)
- `height` {Number | String} (required)
- `latitude` {Number}
- `longitude` {Number}
- `zoom` {Number}
- `bearing` {Number} - default: `0`
- `pitch` {Number} - default: `0`
- `altitude` {Number} - default: `1.5 (screen heights)`
- `viewState` {Object}
### Render Options
Inherit the following props from [StaticMap](/docs/components/static-map.md):
- `style` {Object}
- `visible` {Bool}
- `visibilityConstraints` {Object}
##### `getCursor` {Function}
Accessor that returns a cursor style to show interactive state. Called when the component is being rendered.
Parameters
- `state` - The current state of the component.
+ `state.isDragging` - If the map is being dragged.
+ `state.isHovering` - If the pointer is over an interactive feature. See `interactiveLayerIds` prop.
The default implementation of `getCursor` returns `'pointer'` if `isHovering`, `'grabbing'` if `isDragging` and `'grab'` otherwise.
### Interaction Options
##### `maxZoom` {Number} [default: 20]
Max zoom level.
##### `minZoom` {Number} [default: 0]
Min zoom level.
##### `maxPitch` {Number} [default: 60]
Max pitch in degrees.
##### `minPitch` {Number} [default: 0]
Min pitch in degrees.
##### `scrollZoom` {Bool} [default: true]
Enable scroll to zoom.
##### `dragPan` {Bool} [default: true]
Enable drag to pan.
##### `dragRotate` {Bool} [default: true]
Enable drag to rotate.
##### `doubleClickZoom` {Bool} [default: true]
Enable double click to zoom.
##### `touchZoom` {Bool} [default: true]
Enable multitouch zoom.
##### `touchRotate` {Bool} [default: false]
Enable multitouch rotate.
##### `touchAction` {String} [default: 'none']
Allow browser default touch actions. Default `none`. See [hammer.js doc](http://hammerjs.github.io/touch-action/).
By default, the map captures all touch interactions. This prop is useful for mobile applications to unblock default scrolling behavior. For example, use the combination `dragPan: false` and `touchAction: 'pan-y'` to allow vertical page scroll when dragging over the map.
##### `clickRadius` {Number} [default: 0]
Radius to detect features around a clicked point.
##### `mapControls` {Object}
A map control instance to replace the default map controls.
This object must implement the following interface:
- `events` - An array of subscribed events
- `handleEvent(event, context)` - A method that handles interactive events
##### `interactiveLayerIds` {Array} [default: null]
A list of layer ids that are interactive. If specified:
- Pointer event callbacks will only query the features under the pointer of these layers.
- The `getCursor` callback will receive `isHovering: true` when hover over features of these layers.
If not specified:
- Pointer event callbacks will query the features under the pointer of all layers.
- The `getCursor` callback will always receive `isHovering: false`.
### Transitions
##### `transitionDuration` {Number}
Duration of transition in milliseconds. If specified, the map's viewport will smoothly move from the previous props to the current one. Default `0`;
##### `transitionInterpolator` {Object}
An interpolator object that defines the transition behavior between two map states. `react-map-gl` offers two interpolators:
- `LinearInterpolator` - similar to Mapbox's `easeTo` behavior.
- `FlyToInterpolator` - similar to Mapbox's `flyTo` behavior.
You may import them as follows:
```jsx
import ReactMapGL, {LinearInterpolator, FlyToInterpolator} from 'react-map-gl';
<ReactMapGL transitionDuration={1000} transitionInterpolator={new FlyToInterpolator()}>
```
Default: `new LinearInterpolator()`
For details about using transition interpolators, see [transitions](/docs/advanced/viewport-transitions.md).
##### `transitionEasing` {Function}
Easing function that maps a value from `[0, 1]` to `[0, 1]`. Default to `t => t` (linear). Check out [http://easings.net/](http://easings.net/) for common easing curves.
##### `transitionInterruption` {Number}
What to do if an ongoing transition is interrupted by another transition. There are 3 options:
- `TRANSITION_EVENTS.BREAK` - Start new transition from the current view. This is the default.
- `TRANSITION_EVENTS.SNAP_TO_END` - Jump to the end of the previous transition before starting the new transition.
- `TRANSITION_EVENTS.IGNORE` - Complete the previous transition and ignore the new viewport change.
You may import the constants as follows:
```js
import {TRANSITION_EVENTS} from 'react-map-gl';
```
### Callbacks
Inherit the following props from [StaticMap](/docs/components/static-map.md):
- `onLoad` {Function}
- `onResize` {Function}
- `onError` {Function}
##### `onViewportChange` {Function}
Callback that is fired when the map's viewport properties should be updated.
```js
onViewportChange(viewState, interactionState, oldViewState);
```
Arguments:
- `viewState` {Object} The next viewport properties, including: `width`, `height`, `latitude`, `longitude`, `zoom`, `bearing`, `pitch`, `altitude`, `maxZoom`, `minZoom`, `maxPitch`, `minPitch`, `transitionDuration`, `transitionEasing`, `transitionInterpolator`, `transitionInterruption`.
- `interactionState` {Object} The current interaction that caused this viewport change. See `onInteractionStateChange` for possible fields.
- `oldViewState` {Object} The current viewport properties.
##### `onViewStateChange` {Function}
A newer version of the `onViewportChange` callback. Both are supported and provide equivalent functionality.
```js
onViewStateChange({viewState, interactionState, oldViewState});
```
##### `onInteractionStateChange` {Function}
Callback that is fired when the user interacted with the map.
```js
onInteractionStateChange(interactionState)
```
Possible fields include:
- `interactionState.inTransition` (Boolean)
- `interactionState.isDragging` (Boolean)
- `interactionState.isPanning` (Boolean)
- `interactionState.isRotating` (Boolean)
- `interactionState.isZooming` (Boolean)
Note:
* `onInteractionStateChange` may be fired without `onViewportChange`. For example, when the pointer is released at the end of a drag-pan, `isDragging` are reset to `false`, without the viewport's `longitude` and `latitude` changing.
##### `onHover` {Function}
Called when the map is hovered over with mouse (not pressed). Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onClick` {Function}
Called when the map is clicked. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onDblClick` {Function}
Called when the map is double clicked. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onMouseDown` {Function}
Called when a pointing device (usually a mouse) is pressed within the map. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onMouseMove` {Function}
Called when a pointing device (usually a mouse) is moved within the map. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onMouseUp` {Function}
Called when a pointing device (usually a mouse) is released within the map. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onTouchStart` {Function}
Called when a `touchstart` event occurs within the map. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onTouchMove` {Function}
Called when a `touchmove` event occurs within the map. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onTouchEnd` {Function}
Called when a `touchend` event occurs within the map. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onMouseEnter` {Function}
Called when a pointing device (usually a mouse) enters a visible portion of one of the interactive layers, defined by the `interactiveLayerIds` prop. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onMouseLeave` {Function}
Called when a pointing device (usually a mouse) leaves a visible portion of one of the interactive layers, defined by the `interactiveLayerIds` prop. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onWheel` {Function}
Called when a `wheel` event occurs within the map. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onMouseOut` {Function}
Called when a point device (usually a mouse) leaves the map's canvas. Receives a [PointerEvent](/docs/components/pointer-event.md) object.
##### `onContextMenu` {Function}
Called when the context menu is activated. Prevent default here to enable right button interaction.
Default: `event => event.preventDefault()`
##### `onTransitionStart` {Function}
Callback that is fired when a transition is triggered.
##### `onTransitionInterrupt` {Function}
Callback that is fired when an ongoing transition is interrupted by another transition.
##### `onTransitionEnd` {Function}
Callback that is fired when a transition is complete.
## Methods
Inherit the following methods from [StaticMap](/docs/components/static-map.md):
- `getMap()`
- `queryRenderedFeatures(geometry, parameters)`
## Source
[interactive-map.js](https://github.com/uber/react-map-gl/tree/3.2-release/src/components/interactive-map.js)