Class: WorkspaceDragger

Blockly.WorkspaceDragger

class   static

Constructor

WorkspaceDragger

new WorkspaceDragger(workspace)

Class for a workspace dragger. It moves the workspace around when it is being dragged by a mouse or touch. Note that the workspace itself manages whether or not it has a drag surface and how to do translations based on that. This simply passes the right commands based on events.

Parameter
workspace	Blockly.WorkspaceSvg The workspace to drag. Value must not be null.

Property

startScrollXY_

protected

non-null Blockly.utils.Coordinate

The scroll position of the workspace at the beginning of the drag. Coordinate system: pixel coordinates.

Methods

dispose

package

dispose()

Sever all links from this object.

drag

package

drag(currentDragDeltaXY)

Move the workspace based on the most recent mouse movements.

Parameter
currentDragDeltaXY	Blockly.utils.Coordinate How far the pointer has moved from the position at the start of the drag, in pixel coordinates. Value must not be null.

endDrag

package

endDrag(currentDragDeltaXY)

Finish dragging the workspace and put everything back where it belongs.

Parameter
currentDragDeltaXY	Blockly.utils.Coordinate How far the pointer has moved from the position at the start of the drag, in pixel coordinates. Value must not be null.

startDrag

package

startDrag()

Start dragging the workspace.