Abstract Protected constructorProtected cursorThe CSS cursor to use on the map, for this controller.
If null, the map will fall back to the previous cursor that was set on the map.
Note that changing this cursor will update the cursor on the map's DOM node. When using multiple controllers (e.g. in a CompositeController), the controller that updates the cursor last (to a non-null value), will override any other non-null cursors of active controllers on the map.
Call this method to indicate that the controller's appearance has changed. Calling this method ensures the onDraw will be called during the next rendering pass.
Callback that is invoked when this controller is activated on a map. This method allows controller implementations to perform setup work.
the map on which the controller has been activated
Callback that is invoked when this controller is deactivated on a map. This method allows controller implementations to perform cleanup work. This method must return either any resolved value or a promise to indicate completion of deactivation. This allows controller implementation to perform asynchronous deactivation work. During the period between this method being called and the resolution of the deactivation promise, this controller will no longer receive input events, but will still get the opportunity to draw itself.
the map on which the controller has been deactivated
a concrete value to indicate immediate deactivation or a deactivation promise.
Callback that allows controller implementations to perform custom drawing on the map. Controller shapes and icons are drawn on top of all other content in the map. Note that the map may perform caching which may cause this method to only be invoked once. When a controller implementation's appearance changes the implementation should call invalidate on itself.
the GeoCanvas on which the controller can draw shapes.
Callback that allows controller implementations to draw labels on the map. Note that the map may perform caching which may cause this method to only be invoked once. When a controller implementation's appearance changes the implementation should call invalidate on itself.
the LabelCanvas on which the controller can draw labels.
Called when a gesture event has been received. This method must return a HandleEventResult value to indicate if the event was handled or not, If this method returns EVENT_IGNORED, the map will be given the opportunity to perform default gesture event behaviour. If default event handling is not desired, this method should return EVENT_HANDLED. (See the Controller class description for the default behavior.)
The gesture event to be handled. Note that this is a GestureEvent and not a DOMEvent. You can access the corresponding DOMEvent through GestureEvent.domEvent.
the gesture event handling result.
Called when a key event has been received. This method must return a HandleEventResult value to indicate if the event was handled or not, If this method returns EVENT_IGNORED, the map will be given the opportunity to perform default key event behaviour. If default event handling is not desired, this method should return EVENT_HANDLED. (See the Controller class description for the default behavior.)
The key event to be handled. Note that this is a KeyEvent and not a DOMEvent. You can access the corresponding DOMEvent through KeyEvent.domEvent.
The key event handling result.
An event indicating that this Controller has been activated. Activated means that the controller is active on the map, and the controller's onActivate has been called.
You can use this event to set up UI elements or other listeners related to the controller and the controller's map.
Optional context: any2021.0
An event indicating that this Controller has been deactivated. Deactivated means that the controller has been removed from the map, and the controller's onDeactivate has been called.
You can use this event to clean up UI elements or other listeners related to the controller and the controller's map.
Optional context: any2021.0
An event indicating that this Controller is invalidated. Invalidated means that the Controller requests for its onDraw to be called during the next rendering pass (because its appearance has changed). This event fires when invalidate is called.
Optional context: any
A controller defines how user input events are interpreted. You can explicitly configure a controller by setting the controller property on the Map. If no controller is configured on the map, or the map's controller does not handle the event (does not return EVENT_HANDLED from onGestureEvent), the following defaults apply:
- Mouse events
- Dragging with the mouse on the map will pan the map
- The scroll wheel is used to zoom in and out of the map
- A single click translates to a selection operation
- Touch events
- Dragging a single finger on the screen pans the map
- A pinch operation will zoom in and out of the map
- A single tap selects an object under the finger
- Keyboard events
- There currently are no default keyboard events available
All controller implementations must have Controller in their prototype chain.See the Implementing custom user interaction guide and the Managing user input with LuciadRIA controllers tutorial for more information.