InteractiveFabricObject

Root object class from which all 2d shape classes inherit from

Tutorial

http://fabricjs.com/fabric-intro-part-1#objects

Fires

added

Fires

removed

Fires

selected

Fires

deselected

Fires

rotating

Fires

scaling

Fires

moving

Fires

skewing

Fires

modified

Fires

mousedown

Fires

mouseup

Fires

mouseover

Fires

mouseout

Fires

mousewheel

Fires

mousedblclick

Fires

dragover

Fires

dragenter

Fires

dragleave

Fires

drop

Extends

BaseFabricObject<Props, SProps, EventSpec>

Extended by

FabricObject

Type Parameters

• Props extends TFabricObjectProps = Partial<FabricObjectProps>

• SProps extends SerializedObjectProps = SerializedObjectProps

• EventSpec extends ObjectEvents = ObjectEvents

Implements

FabricObjectProps

Constructors

new InteractiveFabricObject()

new InteractiveFabricObject<Props, SProps, EventSpec>(options?): InteractiveFabricObject<Props, SProps, EventSpec>

Constructor

Parameters

• options?: Props

Options object

Returns

InteractiveFabricObject<Props, SProps, EventSpec>

Overrides

BaseFabricObject.constructor

Defined in

src/shapes/Object/InteractiveObject.ts:151

Properties

__corner?

optional __corner: string

keeps the value of the last hovered corner during mouse move. 0 is no corner, or ‘mt’, ‘ml’, ‘mtr’ etc.. It should be private, but there is no harm in using it as a read-only property. this isn’t cleaned automatically. Non selected objects may have wrong values

Defined in

src/shapes/Object/InteractiveObject.ts:105

_controlsVisibility

_controlsVisibility: Record<string, boolean>

a map of control visibility for this object. this was left when controls were introduced to not break the api too much this takes priority over the generic control visibility

Defined in

src/shapes/Object/InteractiveObject.ts:112

_scaling?

optional _scaling: boolean

A boolean used from the gesture module to keep tracking of a scaling action when there is no scaling transform in place. This is an edge case and is used twice in all codebase. Probably added to keep track of some performance issues

TODO

use git blame to investigate why it was added DON’T USE IT. WE WILL TRY TO REMOVE IT

Defined in

src/shapes/Object/InteractiveObject.ts:134

aCoords

aCoords: TCornerPoint

Describe object’s corner position in scene coordinates. The coordinates are derived from the following: left, top, width, height, scaleX, scaleY, skewX, skewY, angle, strokeWidth. The coordinates do not depend on viewport changes. The coordinates get updated with setCoords. You can calculate them without updating with ()

Inherited from

BaseFabricObject.aCoords

Defined in

src/shapes/Object/ObjectGeometry.ts:63

absolutePositioned

absolutePositioned: boolean

Meaningful ONLY when the object is used as clipPath. if true, the clipPath will have its top and left relative to canvas, and will not be influenced by the object transform. This will make the clipPath relative to the canvas, but clipping just a particular object. WARNING this is beta, this feature may change or be renamed. since 2.4.0

Default

false

angle

angle: TDegree

Angle of rotation of an object (in degrees)

Default

Implementation of

FabricObjectProps.angle

Inherited from

BaseFabricObject.angle

Defined in

src/shapes/Object/ObjectGeometry.ts:581

backgroundColor

backgroundColor: string

Background color of an object. takes css colors https://www.w3.org/TR/css-color-3/

Default

Implementation of

FabricObjectProps.backgroundColor

Inherited from

BaseFabricObject.backgroundColor

Defined in

src/shapes/Object/Object.ts:201

borderColor

borderColor: string

Color of controlling borders of an object (when it’s active)

Default

rgb(178,204,255)

Implementation of

FabricObjectProps.borderColor

Defined in

src/shapes/Object/InteractiveObject.ts:74

borderDashArray

borderDashArray: null | number[]

Array specifying dash pattern of an object’s borders (hasBorder must be true)

Since

1.6.2

Implementation of

FabricObjectProps.borderDashArray

Defined in

src/shapes/Object/InteractiveObject.ts:75

borderOpacityWhenMoving

borderOpacityWhenMoving: number

Opacity of object’s controlling borders when object is active and moving

Default

0.4

Implementation of

FabricObjectProps.borderOpacityWhenMoving

Defined in

src/shapes/Object/InteractiveObject.ts:76

borderScaleFactor

borderScaleFactor: number

Scale factor for the border of the objects ( selection box and controls stroke ). Bigger number will make a thicker border border default value is 1, so this scale value is equal to a border and control strokeWidth. Id you need to divide border from control strokeWidth you will need to write your own render function for controls

Default

Implementation of

FabricObjectProps.borderScaleFactor

Defined in

src/shapes/Object/InteractiveObject.ts:77

centeredRotation

centeredRotation: boolean

When true the object will rotate on its center. When false will rotate around the origin point defined by originX and originY. The value of this property is IGNORED during a transform if the canvas has already centeredRotation set to true The object method rotate will always consider this property and never the canvas’s one.

Since

1.3.4

Default

Implementation of

FabricObjectProps.centeredRotation

Inherited from

BaseFabricObject.centeredRotation

Defined in

src/shapes/Object/Object.ts:215

centeredScaling

centeredScaling: boolean

When true, this object will use center point as the origin of transformation when being scaled via the controls.

Since

1.3.4

Default

Implementation of

FabricObjectProps.centeredScaling

Inherited from

BaseFabricObject.centeredScaling

Defined in

src/shapes/Object/Object.ts:216

clipPath?

optional clipPath: BaseFabricObject<Partial<ObjectProps>, SerializedObjectProps, ObjectEvents>

a fabricObject that, without stroke define a clipping area with their shape. filled in black the clipPath object gets used when the object has rendered, and the context is placed in the center of the object cacheCanvas. If you want 0,0 of a clipPath to align with an object center, use clipPath.originX/Y to ‘center’

Implementation of

FabricObjectProps.clipPath

Inherited from

BaseFabricObject.clipPath

Defined in

src/shapes/Object/Object.ts:212

controls

controls: TControlSet

holds the controls for the object. controls are added by default_controls.js

Defined in

src/shapes/Object/InteractiveObject.ts:118

cornerColor

cornerColor: string

Color of controlling corners of an object (when it’s active)

Default

rgb(178,204,255)

Implementation of

FabricObjectProps.cornerColor

Defined in

src/shapes/Object/InteractiveObject.ts:68

cornerDashArray

cornerDashArray: null | number[]

Array specifying dash pattern of an object’s control (hasBorder must be true)

Since

1.6.2

Default

null

Implementation of

FabricObjectProps.cornerDashArray

Defined in

src/shapes/Object/InteractiveObject.ts:71

cornerSize

cornerSize: number

Size of object’s controlling corners (in pixels)

Default

Implementation of

FabricObjectProps.cornerSize

Defined in

src/shapes/Object/InteractiveObject.ts:65

cornerStrokeColor

cornerStrokeColor: string

Color of controlling corners of an object (when it’s active and transparentCorners false)

Since

1.6.2

Default

''

Implementation of

FabricObjectProps.cornerStrokeColor

Defined in

src/shapes/Object/InteractiveObject.ts:69

cornerStyle

cornerStyle: "circle" | "rect"

Specify style of control, ‘rect’ or ‘circle’ This is deprecated. In the future there will be a standard control render And you can swap it with one of the alternative proposed with the control api

Since

1.6.2

Default

'rect'

Implementation of

FabricObjectProps.cornerStyle

Defined in

src/shapes/Object/InteractiveObject.ts:70

dirty

dirty: boolean

When set to true, object’s cache will be rerendered next render call. since 1.7.0

Default

true

Inherited from

BaseFabricObject.dirty

Defined in

src/shapes/Object/Object.ts:241

evented

evented: boolean

When set to false, an object can not be a target of events. All events propagate through it. Introduced in v1.3.4

Default

Implementation of

FabricObjectProps.evented

Defined in

src/shapes/Object/InteractiveObject.ts:82

excludeFromExport

excludeFromExport: boolean

When true, object is not exported in OBJECT/JSON

Since

1.6.3

Default

Implementation of

FabricObjectProps.excludeFromExport

Inherited from

BaseFabricObject.excludeFromExport

Defined in

src/shapes/Object/Object.ts:208

fill

fill: null | string | TFiller

Color of object’s fill takes css colors https://www.w3.org/TR/css-color-3/

Default

rgb(0,0,0)

Implementation of

FabricObjectProps.fill

Inherited from

BaseFabricObject.fill

Defined in

src/shapes/Object/Object.ts:191

fillRule

fillRule: CanvasFillRule

Fill rule used to fill an object accepted values are nonzero, evenodd Backwards incompatibility note: This property was used for setting globalCompositeOperation until v1.4.12 (use globalCompositeOperation instead)

Default

nonzero

Implementation of

FabricObjectProps.fillRule

Inherited from

BaseFabricObject.fillRule

Defined in

src/shapes/Object/Object.ts:192

flipX

flipX: boolean

When true, an object is rendered as flipped horizontally

Default

false

Implementation of

FabricObjectProps.flipX

Inherited from

BaseFabricObject.flipX

Defined in

src/shapes/Object/ObjectGeometry.ts:567

flipY

flipY: boolean

When true, an object is rendered as flipped vertically

Default

false

Implementation of

FabricObjectProps.flipY

Inherited from

BaseFabricObject.flipY

Defined in

src/shapes/Object/ObjectGeometry.ts:568

globalCompositeOperation

globalCompositeOperation: GlobalCompositeOperation

Composite rule used for canvas globalCompositeOperation

Default

Implementation of

FabricObjectProps.globalCompositeOperation

Inherited from

BaseFabricObject.globalCompositeOperation

Defined in

src/shapes/Object/Object.ts:200

hasBorders

hasBorders: boolean

When set to false, object’s controlling borders are not rendered

Default

Implementation of

FabricObjectProps.hasBorders

Defined in

src/shapes/Object/InteractiveObject.ts:78

hasControls

hasControls: boolean

When set to false, object’s controls are not displayed and can not be used to manipulate object

Default

true

Implementation of

FabricObjectProps.hasControls

Defined in

src/shapes/Object/InteractiveObject.ts:72

height

height: number

Object height

Default

Implementation of

FabricObjectProps.height

Inherited from

BaseFabricObject.height

Defined in

src/shapes/Object/ObjectGeometry.ts:566

hoverCursor

hoverCursor: null | string

Default cursor value used when hovering over this object on canvas

Default

null

Implementation of

FabricObjectProps.hoverCursor

Defined in

src/shapes/Object/InteractiveObject.ts:86

includeDefaultValues

includeDefaultValues: boolean

When false, default object’s values are not included in its serialization

Default

Implementation of

FabricObjectProps.includeDefaultValues

Inherited from

BaseFabricObject.includeDefaultValues

Defined in

src/shapes/Object/Object.ts:207

inverted

inverted: boolean

Meaningful ONLY when the object is used as clipPath. if true, the clipPath will make the object clip to the outside of the clipPath since 2.4.0

Default

false

Implementation of

FabricObjectProps.inverted

Inherited from

BaseFabricObject.inverted

Defined in

src/shapes/Object/Object.ts:213

isMoving?

optional isMoving: boolean

internal boolean to signal the code that the object is part of the move action.

Defined in

src/shapes/Object/InteractiveObject.ts:124

left

left: number

Left position of an object. Note that by default it’s relative to object left. You can change this by setting originX

Default

Implementation of

FabricObjectProps.left

Inherited from

BaseFabricObject.left

Defined in

src/shapes/Object/ObjectGeometry.ts:564

lockMovementX

lockMovementX: boolean

When true, object horizontal movement is locked

Default

Implementation of

FabricObjectProps.lockMovementX

Defined in

src/shapes/Object/InteractiveObject.ts:56

lockMovementY

lockMovementY: boolean

When true, object vertical movement is locked

Default

Implementation of

FabricObjectProps.lockMovementY

Defined in

src/shapes/Object/InteractiveObject.ts:57

lockRotation

lockRotation: boolean

When true, object rotation is locked

Default

Implementation of

FabricObjectProps.lockRotation

Defined in

src/shapes/Object/InteractiveObject.ts:58

lockScalingFlip

lockScalingFlip: boolean

When true, object cannot be flipped by scaling into negative values

Default

Implementation of

FabricObjectProps.lockScalingFlip

Defined in

src/shapes/Object/InteractiveObject.ts:63

lockScalingX

lockScalingX: boolean

When true, object horizontal scaling is locked

Default

Implementation of

FabricObjectProps.lockScalingX

Defined in

src/shapes/Object/InteractiveObject.ts:59

lockScalingY

lockScalingY: boolean

When true, object vertical scaling is locked

Default

Implementation of

FabricObjectProps.lockScalingY

Defined in

src/shapes/Object/InteractiveObject.ts:60

lockSkewingX

lockSkewingX: boolean

When true, object horizontal skewing is locked

Default

Implementation of

FabricObjectProps.lockSkewingX

Defined in

src/shapes/Object/InteractiveObject.ts:61

lockSkewingY

lockSkewingY: boolean

When true, object vertical skewing is locked

Default

Implementation of

FabricObjectProps.lockSkewingY

Defined in

src/shapes/Object/InteractiveObject.ts:62

matrixCache?

optional matrixCache: TMatrixCache

storage cache for object full transform matrix

Inherited from

BaseFabricObject.matrixCache

Defined in

src/shapes/Object/ObjectGeometry.ts:73

minScaleLimit

minScaleLimit: number

Minimum allowed scale value of an object

Default

Implementation of

FabricObjectProps.minScaleLimit

Inherited from

BaseFabricObject.minScaleLimit

Defined in

src/shapes/Object/Object.ts:186

moveCursor

moveCursor: null | string

Default cursor value used when moving this object on canvas

Default

null

Implementation of

FabricObjectProps.moveCursor

Defined in

src/shapes/Object/InteractiveObject.ts:87

noScaleCache

noScaleCache: boolean

When true, cache does not get updated during scaling. The picture will get blocky if scaled too much and will be redrawn with correct details at the end of scaling. this setting is performance and application dependant. default to true since 1.7.0

Default

true

Implementation of

FabricObjectProps.noScaleCache

Defined in

src/shapes/Object/InteractiveObject.ts:51

oCoords

oCoords: Record<string, TOCoord>

The object’s controls’ position in viewport coordinates Calculated by Control#positionHandler and Control#calcCornerCoords, depending on padding. corner/touchCorner describe the 4 points forming the interactive area of the corner. Used to draw and locate controls.

Defined in

src/shapes/Object/InteractiveObject.ts:95

objectCaching

objectCaching: boolean

When true, object is cached on an additional canvas. When false, object is not cached unless necessary ( clipPath ) default to true

Since

1.7.0

Default

true

Implementation of

FabricObjectProps.objectCaching

Inherited from

BaseFabricObject.objectCaching

Defined in

src/shapes/Object/Object.ts:210

opacity

opacity: number

Opacity of an object

Default

Implementation of

FabricObjectProps.opacity

Inherited from

BaseFabricObject.opacity

Defined in

src/shapes/Object/Object.ts:188

originX

originX: TOriginX

Implementation of

FabricObjectProps.originX

Inherited from

BaseFabricObject.originX

Defined in

src/shapes/Object/ObjectGeometry.ts:576

originY

originY: TOriginY

Implementation of

FabricObjectProps.originY

Inherited from

BaseFabricObject.originY

Defined in

src/shapes/Object/ObjectGeometry.ts:580

ownMatrixCache?

optional ownMatrixCache: TMatrixCache

storage cache for object transform matrix

Inherited from

BaseFabricObject.ownMatrixCache

Defined in

src/shapes/Object/ObjectGeometry.ts:68

padding

padding: number

Padding between object and its controlling borders (in pixels)

Default

Implementation of

FabricObjectProps.padding

Inherited from

BaseFabricObject.padding

Defined in

src/shapes/Object/ObjectGeometry.ts:53

paintFirst

paintFirst: "fill" | "stroke"

Determines if the fill or the stroke is drawn first (one of “fill” or “stroke”)

Default

Implementation of

FabricObjectProps.paintFirst

Inherited from

BaseFabricObject.paintFirst

Defined in

src/shapes/Object/Object.ts:190

parent?

optional parent: Group

A reference to the parent of the object Used to keep the original parent ref when the object has been added to an ActiveSelection, hence loosing the group ref

Inherited from

BaseFabricObject.parent

Defined in

src/shapes/Object/Object.ts:1595

perPixelTargetFind

perPixelTargetFind: boolean

When set to true, objects are “found” on canvas on per-pixel basis rather than according to bounding box

Default

Implementation of

FabricObjectProps.perPixelTargetFind

Defined in

src/shapes/Object/InteractiveObject.ts:83

scaleX

scaleX: number

Object scale factor (horizontal)

Default

Implementation of

FabricObjectProps.scaleX

Inherited from

BaseFabricObject.scaleX

Defined in

src/shapes/Object/ObjectGeometry.ts:569

scaleY

scaleY: number

Object scale factor (vertical)

Default

Implementation of

FabricObjectProps.scaleY

Inherited from

BaseFabricObject.scaleY

Defined in

src/shapes/Object/ObjectGeometry.ts:570

selectable

selectable: boolean

When set to false, an object can not be selected for modification (using either point-click-based or group-based selection). But events still fire on it.

Default

Implementation of

FabricObjectProps.selectable

Defined in

src/shapes/Object/InteractiveObject.ts:81

selectionBackgroundColor

selectionBackgroundColor: string

Selection Background color of an object. colored layer behind the object when it is active. does not mix good with globalCompositeOperation methods.

Default

Implementation of

FabricObjectProps.selectionBackgroundColor

Defined in

src/shapes/Object/InteractiveObject.ts:79

shadow

shadow: null | Shadow

Shadow object representing shadow of this shape

Default

null

Implementation of

FabricObjectProps.shadow

Inherited from

BaseFabricObject.shadow

Defined in

src/shapes/Object/Object.ts:203

skewX

skewX: number

Angle of skew on x axes of an object (in degrees)

Default

Implementation of

FabricObjectProps.skewX

Inherited from

BaseFabricObject.skewX

Defined in

src/shapes/Object/ObjectGeometry.ts:571

skewY

skewY: number

Angle of skew on y axes of an object (in degrees)

Default

Implementation of

FabricObjectProps.skewY

Inherited from

BaseFabricObject.skewY

Defined in

src/shapes/Object/ObjectGeometry.ts:572

snapAngle?

optional snapAngle: TDegree

The angle that an object will lock to while rotating.

Implementation of

FabricObjectProps.snapAngle

Defined in

src/shapes/Object/InteractiveObject.ts:53

snapThreshold?

optional snapThreshold: TDegree

The angle difference from the current snapped angle in which snapping should occur. When undefined, the snapThreshold will default to the snapAngle.

Implementation of

FabricObjectProps.snapThreshold

Defined in

src/shapes/Object/InteractiveObject.ts:54

stroke

stroke: null | string | TFiller

When defined, an object is rendered via stroke and this property specifies its color takes css colors https://www.w3.org/TR/css-color-3/

Default

null

Implementation of

FabricObjectProps.stroke

Inherited from

BaseFabricObject.stroke

Defined in

src/shapes/Object/Object.ts:193

strokeDashArray

strokeDashArray: null | number[]

Array specifying dash pattern of an object’s stroke (stroke must be defined)

Default

null;

Implementation of

FabricObjectProps.strokeDashArray

Inherited from

BaseFabricObject.strokeDashArray

Defined in

src/shapes/Object/Object.ts:194

strokeDashOffset

strokeDashOffset: number

Line offset of an object’s stroke

Default

Implementation of

FabricObjectProps.strokeDashOffset

Inherited from

BaseFabricObject.strokeDashOffset

Defined in

src/shapes/Object/Object.ts:195

strokeLineCap

strokeLineCap: CanvasLineCap

Line endings style of an object’s stroke (one of “butt”, “round”, “square”)

Default

butt

Implementation of

FabricObjectProps.strokeLineCap

Inherited from

BaseFabricObject.strokeLineCap

Defined in

src/shapes/Object/Object.ts:196

strokeLineJoin

strokeLineJoin: CanvasLineJoin

Corner style of an object’s stroke (one of “bevel”, “round”, “miter”)

Default

Implementation of

FabricObjectProps.strokeLineJoin

Inherited from

BaseFabricObject.strokeLineJoin

Defined in

src/shapes/Object/Object.ts:197

strokeMiterLimit

strokeMiterLimit: number

Maximum miter length (used for strokeLineJoin = “miter”) of an object’s stroke

Default

Implementation of

FabricObjectProps.strokeMiterLimit

Inherited from

BaseFabricObject.strokeMiterLimit

Defined in

src/shapes/Object/Object.ts:198

strokeUniform

strokeUniform: boolean

When false, the stoke width will scale with the object. When true, the stroke will always match the exact pixel size entered for stroke width. this Property does not work on Text classes or drawing call that uses strokeText,fillText methods default to false

Since

2.6.0

Default

false

Default

false

Implementation of

FabricObjectProps.strokeUniform

Inherited from

BaseFabricObject.strokeUniform

Defined in

src/shapes/Object/ObjectGeometry.ts:583

strokeWidth

strokeWidth: number

Width of a stroke used to render this object

Default

Implementation of

FabricObjectProps.strokeWidth

Inherited from

BaseFabricObject.strokeWidth

Defined in

src/shapes/Object/ObjectGeometry.ts:582

top

top: number

Top position of an object. Note that by default it’s relative to object top. You can change this by setting originY

Default

Implementation of

FabricObjectProps.top

Inherited from

BaseFabricObject.top

Defined in

src/shapes/Object/ObjectGeometry.ts:563

touchCornerSize

touchCornerSize: number

Size of object’s controlling corners when touch interaction is detected

Default

Implementation of

FabricObjectProps.touchCornerSize

Defined in

src/shapes/Object/InteractiveObject.ts:66

transparentCorners

transparentCorners: boolean

When true, object’s controlling corners are rendered as transparent inside (i.e. stroke instead of fill)

Default

true

Implementation of

FabricObjectProps.transparentCorners

Defined in

src/shapes/Object/InteractiveObject.ts:67

visible

visible: boolean

When set to false, an object is not rendered on canvas

Default

Implementation of

FabricObjectProps.visible

Inherited from

BaseFabricObject.visible

Defined in

src/shapes/Object/Object.ts:205

width

width: number

Object width

Default

Implementation of

FabricObjectProps.width

Inherited from

BaseFabricObject.width

Defined in

src/shapes/Object/ObjectGeometry.ts:565

cacheProperties

static cacheProperties: string[]

List of properties to consider when checking if cache needs refresh Those properties are checked by calls to Object.set(key, value). If the key is in this list, the object is marked as dirty and refreshed at the next render

Inherited from

BaseFabricObject.cacheProperties

Defined in

src/shapes/Object/Object.ts:233

colorProperties

static colorProperties: string[]

List of properties to consider for animating colors.

Inherited from

BaseFabricObject.colorProperties

Defined in

src/shapes/Object/Object.ts:1502

customProperties

static customProperties: string[] = []

Define a list of custom properties that will be serialized when instance.toObject() gets called

Inherited from

BaseFabricObject.customProperties

Defined in

src/shapes/Object/Object.ts:1743

ownDefaults

static ownDefaults: Partial<TClassProperties<InteractiveFabricObject<Partial<FabricObjectProps>, SerializedObjectProps, ObjectEvents>>> = interactiveObjectDefaultValues

Overrides

BaseFabricObject.ownDefaults

Defined in

src/shapes/Object/InteractiveObject.ts:138

stateProperties

static stateProperties: string[]

This list of properties is used to check if the state of an object is changed. This state change now is only used for children of groups to understand if a group needs its cache regenerated during a .set call

Inherited from

BaseFabricObject.stateProperties

Defined in

src/shapes/Object/Object.ts:224

type

static type: string = 'FabricObject'

The class type. This is used for serialization and deserialization purposes and internally it can be used to identify classes. When we transform a class in a plain JS object we need a way to recognize which class it was, and the type is the way we do that. It has no other purposes and you should not give one. Hard to reach on instances and please do not use to drive instance’s logic (this.constructor.type). To idenfity a class use instanceof class ( instanceof Rect ). We do not do that in fabricJS code because we want to try to have code splitting possible.

Inherited from

BaseFabricObject.type

Defined in

src/shapes/Object/Object.ts:342

Accessors

type

get type(): string

Legacy identifier of the class. Prefer using utils like isType or instanceOf Will be removed in fabric 7 or 8. The setter exists to avoid type errors in old code and possibly current deserialization code. DO NOT build new code around this type value

TODO

add sustainable warning message

set type(value): void

Parameters

• value: string

Returns

string

Inherited from

BaseFabricObject.type

Defined in

src/shapes/Object/Object.ts:353

Methods

_drawClipPath()

_drawClipPath(ctx, clipPath, context): void

Prepare clipPath state and cache and draw it on instance’s cache

Parameters

• ctx: CanvasRenderingContext2D

• clipPath: undefined | BaseFabricObject<Partial<ObjectProps>, SerializedObjectProps, ObjectEvents>

• context: DrawContext

Returns

void

Inherited from

BaseFabricObject._drawClipPath

Defined in

src/shapes/Object/Object.ts:883

_limitCacheSize()

_limitCacheSize(dims): any

Limit the cache dimensions so that X * Y do not cross config.perfLimitSizeTotal and each side do not cross fabric.cacheSideLimit those numbers are configurable so that you can get as much detail as you want making bargain with performances.

Parameters

• dims: any

Returns

any

.width width of canvas

.height height of canvas

.zoomX zoomX zoom value to unscale the canvas before drawing cache

.zoomY zoomY zoom value to unscale the canvas before drawing cache

Inherited from

BaseFabricObject._limitCacheSize

Defined in

src/shapes/Object/Object.ts:402

_removeCacheCanvas()

_removeCacheCanvas(): void

Remove cacheCanvas and its dimensions from the objects

Returns

void

Inherited from

BaseFabricObject._removeCacheCanvas

Defined in

src/shapes/Object/Object.ts:719

_renderControls()

_renderControls(ctx, styleOverride?): void

Renders controls and borders for the object the context here is not transformed

Parameters

• ctx: CanvasRenderingContext2D

Context to render on

• styleOverride?: TStyleOverride = {}

properties to override the object style

Returns

void

Todo

move to interactivity

Defined in

src/shapes/Object/InteractiveObject.ts:435

_setClippingProperties()

_setClippingProperties(ctx): void

Parameters

• ctx: CanvasRenderingContext2D

Returns

void

Inherited from

BaseFabricObject._setClippingProperties

Defined in

src/shapes/Object/Object.ts:1025

_setFillStyles()

_setFillStyles(ctx, __namedParameters): void

Parameters

• ctx: CanvasRenderingContext2D

• __namedParameters: Pick<InteractiveFabricObject<Props, SProps, EventSpec>, "fill">

Returns

void

Inherited from

BaseFabricObject._setFillStyles

Defined in

src/shapes/Object/Object.ts:1014

_setStrokeStyles()

_setStrokeStyles(ctx, decl): void

Parameters

• ctx: CanvasRenderingContext2D

Returns

void

Inherited from

BaseFabricObject._setStrokeStyles

Defined in

src/shapes/Object/Object.ts:972

_setupCompositeOperation()

_setupCompositeOperation(ctx): void

Sets canvas globalCompositeOperation for specific object custom composition operation for the particular object can be specified using globalCompositeOperation property

Parameters

• ctx: CanvasRenderingContext2D

Rendering canvas context

Returns

void

Inherited from

BaseFabricObject._setupCompositeOperation

Defined in

src/shapes/Object/Object.ts:1477

animate()

animate<T>(animatable, options?): Record<string, TAnimation<T>>

Animates object’s properties

Type Parameters

• T extends number | number[] | TColorArg

Parameters

• animatable: Record<string, T>

map of keys and end values

• options?: Partial<AnimationOptions<T>>

Returns

Record<string, TAnimation<T>>

map of animation contexts

As object — multiple properties

object.animate({ left: …, top: … }); object.animate({ left: …, top: … }, { duration: … });

Tutorial

http://fabricjs.com/fabric-intro-part-2#animation

Inherited from

BaseFabricObject.animate

Defined in

src/shapes/Object/Object.ts:1516

calcACoords()

calcACoords(): TCornerPoint

Calculates the coordinates of the 4 corner of the bbox, in absolute coordinates. those never change with zoom or viewport changes.

Returns

TCornerPoint

Inherited from

BaseFabricObject.calcACoords

Defined in

src/shapes/Object/ObjectGeometry.ts:427

calcOCoords()

calcOCoords(): Record<string, TOCoord>

Calculates the coordinates of the center of each control plus the corners of the control itself This basically just delegates to each control positionHandler WARNING: changing what is passed to positionHandler is a breaking change, since position handler is a public api and should be done just if extremely necessary

Returns

Record<string, TOCoord>

Defined in

src/shapes/Object/InteractiveObject.ts:255

calcOwnMatrix()

calcOwnMatrix(): TMat2D

calculate transform matrix that represents the current transformations from the object’s properties, this matrix does not include the group transformation

Returns

TMat2D

transform matrix for the object

Inherited from

BaseFabricObject.calcOwnMatrix

Defined in

src/shapes/Object/ObjectGeometry.ts:513

calcTransformMatrix()

calcTransformMatrix(skipGroup?): TMat2D

calculate transform matrix that represents the current transformations from the object’s properties.

Parameters

• skipGroup?: boolean = false

return transform matrix for object not counting parent transformations There are some situation in which this is useful to avoid the fake rotation.

Returns

TMat2D

transform matrix for the object

Inherited from

BaseFabricObject.calcTransformMatrix

Defined in

src/shapes/Object/ObjectGeometry.ts:485

canDrop()

canDrop(_e): boolean

Override to customize drag and drop behavior

Parameters

• _e: DragEvent

Returns

boolean

true if the object currently dragged can be dropped on the target

Defined in

src/shapes/Object/InteractiveObject.ts:701

clearContextTop()

clearContextTop(restoreManually?): undefined | CanvasRenderingContext2D

Clears the canvas.contextTop in a specific area that corresponds to the object’s bounding box that is in the canvas.contextContainer. This function is used to clear pieces of contextTop where we render ephemeral effects on top of the object. Example: blinking cursor text selection, drag effects.

Parameters

• restoreManually?: boolean

When true won’t restore the context after clear, in order to draw something else.

Returns

undefined | CanvasRenderingContext2D

canvas.contextTop that is either still transformed with the object transformMatrix, or restored to neutral transform

Todo

discuss swapping restoreManually with a renderCallback, but think of async issues

Defined in

src/shapes/Object/InteractiveObject.ts:627

clone()

clone(propertiesToInclude?): Promise<InteractiveFabricObject<Props, SProps, EventSpec>>

Clones an instance.

Parameters

• propertiesToInclude?: string[]

Any properties that you might want to additionally include in the output

Returns

Promise<InteractiveFabricObject<Props, SProps, EventSpec>>

Inherited from

BaseFabricObject.clone

Defined in

src/shapes/Object/Object.ts:1251

cloneAsImage()

cloneAsImage(options?): FabricImage<Partial<ImageProps>, SerializedImageProps, ObjectEvents>

Creates an instance of Image out of an object makes use of toCanvasElement. Once this method was based on toDataUrl and loadImage, so it also had a quality and format option. toCanvasElement is faster and produce no loss of quality. If you need to get a real Jpeg or Png from an object, using toDataURL is the right way to do it. toCanvasElement and then toBlob from the obtained canvas is also a good option.

Parameters

• options?: ObjectToCanvasElementOptions

for clone as image, passed to toDataURL

Returns

FabricImage<Partial<ImageProps>, SerializedImageProps, ObjectEvents>

Object cloned as image.

Todo

fix the export type, it could not be Image but the type that getClass return for ‘image’.

Inherited from

BaseFabricObject.cloneAsImage

Defined in

src/shapes/Object/Object.ts:1277

complexity()

complexity(): number

Returns complexity of an instance

Returns

number

complexity of this instance (is 1 unless subclassed)

Inherited from

BaseFabricObject.complexity

Defined in

src/shapes/Object/Object.ts:1419

containsPoint()

containsPoint(point): boolean

Checks if point is inside the object

Parameters

• point: Point

Point to check against

Returns

boolean

true if point is inside the object

Inherited from

BaseFabricObject.containsPoint

Defined in

src/shapes/Object/ObjectGeometry.ts:282

dispose()

dispose(): void

cancel instance’s running animations override if necessary to dispose artifacts such as clipPath

Returns

void

Inherited from

BaseFabricObject.dispose

Defined in

src/shapes/Object/Object.ts:1487

drawBorders()

drawBorders(ctx, options, styleOverride?): void

Draws borders of an object’s bounding box. Requires public properties: width, height Requires public options: padding, borderColor

Parameters

• ctx: CanvasRenderingContext2D

Context to draw on

• options: Required<Omit<TComposeMatrixArgs, "flipY" | "flipX">>

object representing current object parameters

• styleOverride?: TStyleOverride

object to override the object style

Returns

void

Defined in

src/shapes/Object/InteractiveObject.ts:478

drawCacheOnCanvas()

drawCacheOnCanvas(this, ctx): void

Paint the cached copy of the object on the target context.

Parameters

• this: TCachedFabricObject<BaseFabricObject<Partial<ObjectProps>, SerializedObjectProps, ObjectEvents>>

• ctx: CanvasRenderingContext2D

Context to render on

Returns

void

Inherited from

BaseFabricObject.drawCacheOnCanvas

Defined in

src/shapes/Object/Object.ts:905

drawClipPathOnCache()

drawClipPathOnCache(ctx, clipPath, canvasWithClipPath): void

Execute the drawing operation for an object clipPath

Parameters

• ctx: CanvasRenderingContext2D

Context to render on

• clipPath: BaseFabricObject<Partial<ObjectProps>, SerializedObjectProps, ObjectEvents>

• canvasWithClipPath: HTMLCanvasElement

Returns

void

Inherited from

BaseFabricObject.drawClipPathOnCache

Defined in

src/shapes/Object/Object.ts:810

drawControls()

drawControls(ctx, styleOverride): void

Draws corners of an object’s bounding box. Requires public properties: width, height Requires public options: cornerSize, padding Be aware that since fabric 6.0 this function does not call setCoords anymore. setCoords needs to be called manually if the object of which we are rendering controls is outside the standard selection and transform process.

Parameters

• ctx: CanvasRenderingContext2D

Context to draw on

• styleOverride: Partial<Pick<InteractiveFabricObject<Partial<FabricObjectProps>, SerializedObjectProps, ObjectEvents>, "cornerStyle" | "cornerSize" | "cornerColor" | "cornerStrokeColor" | "cornerDashArray" | "transparentCorners">> = {}

object to override the object style

Returns

void

Defined in

src/shapes/Object/InteractiveObject.ts:550

drawControlsConnectingLines()

drawControlsConnectingLines(ctx, size): void

Draws lines from a borders of an object’s bounding box to controls that have withConnection property set. Requires public properties: width, height Requires public options: padding, borderColor

Parameters

• ctx: CanvasRenderingContext2D

Context to draw on

• size: Point

object size x = width, y = height

Returns

void

Defined in

src/shapes/Object/InteractiveObject.ts:517

drawObject()

drawObject(ctx, forClipping, context): void

Execute the drawing operation for an object on a specified context

Parameters

• ctx: CanvasRenderingContext2D

Context to render on

• forClipping: undefined | boolean

apply clipping styles

• context: DrawContext

additional context for rendering

Returns

void

Inherited from

BaseFabricObject.drawObject

Defined in

src/shapes/Object/Object.ts:835

drawSelectionBackground()

drawSelectionBackground(ctx): void

Draws a colored layer behind the object, inside its selection borders. Requires public options: padding, selectionBackgroundColor this function is called when the context is transformed has checks to be skipped when the object is on a staticCanvas

Parameters

• ctx: CanvasRenderingContext2D

Context to draw on

Returns

void

Todo

evaluate if make this disappear in favor of a pre-render hook for objects this was added by Andrea Bogazzi to make possible some feature for work reasons it seemed a good option, now is an edge case

Overrides

BaseFabricObject.drawSelectionBackground

Defined in

src/shapes/Object/InteractiveObject.ts:375

findCommonAncestors()

findCommonAncestors<T>(other): AncestryComparison

Compare ancestors

Type Parameters

• T extends InteractiveFabricObject<Props, SProps, EventSpec>

Parameters

• other: T

Returns

AncestryComparison

an object that represent the ancestry situation.

Inherited from

BaseFabricObject.findCommonAncestors

Defined in

src/shapes/Object/Object.ts:1634

fire()

fire<K>(eventName, options?): void

Fires event with an optional options object

Type Parameters

• K extends string | number | symbol

Parameters

• eventName: K

Event name to fire

• options?: EventSpec[K]

Options object

Returns

void

Inherited from

BaseFabricObject.fire

Defined in

src/Observable.ts:167

forEachControl()

forEachControl(fn): void

Calls a function for each control. The function gets called, with the control, the control’s key and the object that is calling the iterator

Parameters

• fn

function to iterate over the controls over

Returns

void

Defined in

src/shapes/Object/InteractiveObject.ts:353

get()

get(property): any

Basic getter

Parameters

• property: string

Property name

Returns

any

value of a property

Inherited from

BaseFabricObject.get

Defined in

src/CommonMethods.ts:59

getActiveControl()

getActiveControl(): undefined | object

Returns

undefined | object

Defined in

src/shapes/Object/InteractiveObject.ts:194

getAncestors()

getAncestors(): Ancestors

Returns

Ancestors

ancestors (excluding ActiveSelection) from bottom to top

Inherited from

BaseFabricObject.getAncestors

Defined in

src/shapes/Object/Object.ts:1617

getBoundingRect()

getBoundingRect(): TBBox

Returns coordinates of object’s bounding rectangle (left, top, width, height) the box is intended as aligned to axis of canvas.

Returns

TBBox

Object with left, top, width, height properties

Inherited from

BaseFabricObject.getBoundingRect

Defined in

src/shapes/Object/ObjectGeometry.ts:343

getCanvasRetinaScaling()

getCanvasRetinaScaling(): number

Returns

number

Inherited from

BaseFabricObject.getCanvasRetinaScaling

Defined in

src/shapes/Object/ObjectGeometry.ts:400

getCenterPoint()

getCenterPoint(): Point

Returns the center coordinates of the object relative to canvas

Returns

Point

Inherited from

BaseFabricObject.getCenterPoint

Defined in

src/shapes/Object/ObjectGeometry.ts:732

getCoords()

getCoords(): Point[]

Returns

Point[]

[tl, tr, br, bl] in the scene plane

Inherited from

BaseFabricObject.getCoords

Defined in

src/shapes/Object/ObjectGeometry.ts:204

getObjectOpacity()

getObjectOpacity(): number

Return the object opacity counting also the group property

Returns

number

Inherited from

BaseFabricObject.getObjectOpacity

Defined in

src/shapes/Object/Object.ts:570

getObjectScaling()

getObjectScaling(): Point

Return the object scale factor counting also the group scaling

Returns

Point

Inherited from

BaseFabricObject.getObjectScaling

Defined in

src/shapes/Object/Object.ts:539

getPointByOrigin()

getPointByOrigin(originX, originY): Point

Returns the position of the object as if it has a different origin. Take an object that has left, top set to 100, 100 with origin ‘left’, ‘top’. Return the values of left top ( wrapped in a point ) that you would need to keep the same position if origin where different. Alternatively you can use this to also find which point in the parent plane is a specific origin ( where is the bottom right corner of my object? )

Parameters

• originX: TOriginX

Horizontal origin: ‘left’, ‘center’ or ‘right’

• originY: TOriginY

Vertical origin: ‘top’, ‘center’ or ‘bottom’

Returns

Point

Inherited from

BaseFabricObject.getPointByOrigin

Defined in

src/shapes/Object/ObjectGeometry.ts:762

getRelativeCenterPoint()

getRelativeCenterPoint(): Point

Returns the center coordinates of the object relative to it’s parent

Returns

Point

Inherited from

BaseFabricObject.getRelativeCenterPoint

Defined in

src/shapes/Object/ObjectGeometry.ts:743

getRelativeX()

getRelativeX(): number

Returns

number

x position according to object’s originX property in parent’s coordinate plane
if parent is canvas then this property is identical to getX

Inherited from

BaseFabricObject.getRelativeX

Defined in

src/shapes/Object/ObjectGeometry.ts:115

getRelativeXY()

getRelativeXY(): Point

Returns

Point

x,y position according to object’s originX originY properties in parent’s coordinate plane

Inherited from

BaseFabricObject.getRelativeXY

Defined in

src/shapes/Object/ObjectGeometry.ts:176

getRelativeY()

getRelativeY(): number

Returns

number

y position according to object’s originY property in parent’s coordinate plane
if parent is canvas then this property is identical to getY

Inherited from

BaseFabricObject.getRelativeY

Defined in

src/shapes/Object/ObjectGeometry.ts:131

getScaledHeight()

getScaledHeight(): number

Returns height of an object bounding box counting transformations

Returns

number

height value

Todo

shouldn’t this account for group transform and return the actual size in canvas coordinate plane?

Inherited from

BaseFabricObject.getScaledHeight

Defined in

src/shapes/Object/ObjectGeometry.ts:361

getScaledWidth()

getScaledWidth(): number

Returns width of an object’s bounding box counting transformations

Returns

number

width value

Todo

shouldn’t this account for group transform and return the actual size in canvas coordinate plane?

Inherited from

BaseFabricObject.getScaledWidth

Defined in

src/shapes/Object/ObjectGeometry.ts:352

getTotalAngle()

getTotalAngle(): TDegree

Returns the object angle relative to canvas counting also the group property

Returns

TDegree

Inherited from

BaseFabricObject.getTotalAngle

Defined in

src/shapes/Object/ObjectGeometry.ts:408

getTotalObjectScaling()

getTotalObjectScaling(): Point

Return the object scale factor counting also the group scaling, zoom and retina

Returns

Point

object with scaleX and scaleY properties

Inherited from

BaseFabricObject.getTotalObjectScaling

Defined in

src/shapes/Object/Object.ts:556

getViewportTransform()

getViewportTransform(): TMat2D

Retrieves viewportTransform from Object’s canvas if available

Returns

TMat2D

Inherited from

BaseFabricObject.getViewportTransform

Defined in

src/shapes/Object/ObjectGeometry.ts:418

getX()

getX(): number

Returns

number

x position according to object’s originX property in canvas coordinate plane

Inherited from

BaseFabricObject.getX

Defined in

src/shapes/Object/ObjectGeometry.ts:86

getXY()

getXY(): Point

Returns

Point

x position according to object’s originX originY properties in canvas coordinate plane

Inherited from

BaseFabricObject.getXY

Defined in

src/shapes/Object/ObjectGeometry.ts:146

getY()

getY(): number

Returns

number

y position according to object’s originY property in canvas coordinate plane

Inherited from

BaseFabricObject.getY

Defined in

src/shapes/Object/ObjectGeometry.ts:100

hasCommonAncestors()

hasCommonAncestors<T>(other): boolean

Type Parameters

• T extends InteractiveFabricObject<Props, SProps, EventSpec>

Parameters

• other: T

Returns

boolean

Inherited from

BaseFabricObject.hasCommonAncestors

Defined in

src/shapes/Object/Object.ts:1699

hasFill()

hasFill(): null | boolean | ""

return true if the object will draw a fill Does not consider text styles. This is just a shortcut used at rendering time We want it to be an approximation and be fast. wrote to avoid extra caching, it has to return true when fill happens, can guess when it will not happen at 100% chance, does not matter if it misses some use case where the fill is invisible.

Returns

null | boolean | ""

Boolean

Since

3.0.0

Inherited from

BaseFabricObject.hasFill

Defined in

src/shapes/Object/Object.ts:750

hasStroke()

hasStroke(): null | boolean | ""

return true if the object will draw a stroke Does not consider text styles. This is just a shortcut used at rendering time We want it to be an approximation and be fast. wrote to avoid extra caching, it has to return true when stroke happens, can guess when it will not happen at 100% chance, does not matter if it misses some use case where the stroke is invisible.

Returns

null | boolean | ""

Boolean

Since

3.0.0

Inherited from

BaseFabricObject.hasStroke

Defined in

src/shapes/Object/Object.ts:734

intersectsWithObject()

intersectsWithObject(other): boolean

Checks if object intersects with another object

Parameters

• other: ObjectGeometry<ObjectEvents>

Object to test

Returns

boolean

true if object intersects with another object

Inherited from

BaseFabricObject.intersectsWithObject

Defined in

src/shapes/Object/ObjectGeometry.ts:232

intersectsWithRect()

intersectsWithRect(tl, br): boolean

Checks if object intersects with the scene rect formed by tl and br

Parameters

• tl: Point

• br: Point

Returns

boolean

Inherited from

BaseFabricObject.intersectsWithRect

Defined in

src/shapes/Object/ObjectGeometry.ts:218

isCacheDirty()

isCacheDirty(skipCanvas): boolean

Check if cache is dirty

Parameters

• skipCanvas: boolean = false

skip canvas checks because this object is painted on parent canvas.

Returns

boolean

Inherited from

BaseFabricObject.isCacheDirty

Defined in

src/shapes/Object/Object.ts:919

isContainedWithinObject()

isContainedWithinObject(other): boolean

Checks if object is fully contained within area of another object

Parameters

• other: ObjectGeometry<ObjectEvents>

Object to test

Returns

boolean

true if object is fully contained within area of another object

Inherited from

BaseFabricObject.isContainedWithinObject

Defined in

src/shapes/Object/ObjectGeometry.ts:251

isContainedWithinRect()

isContainedWithinRect(tl, br): boolean

Checks if object is fully contained within the scene rect formed by tl and br

Parameters

• tl: Point

• br: Point

Returns

boolean

Inherited from

BaseFabricObject.isContainedWithinRect

Defined in

src/shapes/Object/ObjectGeometry.ts:259

isControlVisible()

isControlVisible(controlKey): boolean

Returns true if the specified control is visible, false otherwise.

Parameters

• controlKey: string

The key of the control. Possible values are usually ‘tl’, ‘tr’, ‘br’, ‘bl’, ‘ml’, ‘mt’, ‘mr’, ‘mb’, ‘mtr’, but since the control api allow for any control name, can be any string.

Returns

boolean

true if the specified control is visible, false otherwise

Defined in

src/shapes/Object/InteractiveObject.ts:584

isDescendantOf()

isDescendantOf(target): boolean

Checks if object is descendant of target Should be used instead of Group.contains or StaticCanvas.contains for performance reasons

Parameters

• target: TAncestor

Returns

boolean

Inherited from

BaseFabricObject.isDescendantOf

Defined in

src/shapes/Object/Object.ts:1603

isInFrontOf()

isInFrontOf<T>(other): undefined | boolean

Type Parameters

• T extends InteractiveFabricObject<Props, SProps, EventSpec>

Parameters

• other: T

object to compare against

Returns

undefined | boolean

if objects do not share a common ancestor or they are strictly equal it is impossible to determine which is in front of the other; in such cases the function returns undefined

Inherited from

BaseFabricObject.isInFrontOf

Defined in

src/shapes/Object/Object.ts:1709

isNotVisible()

isNotVisible(): boolean

Returns

boolean

Inherited from

BaseFabricObject.isNotVisible

Defined in

src/shapes/Object/Object.ts:649

isOnScreen()

isOnScreen(): boolean

Checks if object is contained within the canvas with current viewportTransform the check is done stopping at first point that appears on screen

Returns

boolean

true if object is fully or partially contained within canvas

Inherited from

BaseFabricObject.isOnScreen

Defined in

src/shapes/Object/ObjectGeometry.ts:291

isOverlapping()

isOverlapping<T>(other): boolean

Type Parameters

• T extends ObjectGeometry<ObjectEvents>

Parameters

• other: T

Returns

boolean

Inherited from

BaseFabricObject.isOverlapping

Defined in

src/shapes/Object/ObjectGeometry.ts:269

isPartiallyOnScreen()

isPartiallyOnScreen(): boolean

Checks if object is partially contained within the canvas with current viewportTransform

Returns

boolean

true if object is partially contained within canvas

Inherited from

BaseFabricObject.isPartiallyOnScreen

Defined in

src/shapes/Object/ObjectGeometry.ts:321

isType()

isType(…types): boolean

Returns true if any of the specified types is identical to the type of an instance

Parameters

• …types: string[]

Returns

boolean

Inherited from

BaseFabricObject.isType

Defined in

src/shapes/Object/Object.ts:1408

needsItsOwnCache()

needsItsOwnCache(): boolean

When set to true, force the object to have its own cache, even if it is inside a group it may be needed when your object behave in a particular way on the cache and always needs its own isolated canvas to render correctly. Created to be overridden since 1.7.12

Returns

boolean

Boolean

Inherited from

BaseFabricObject.needsItsOwnCache

Defined in

src/shapes/Object/Object.ts:762

off()

off(eventName)

off<K>(eventName): void

Unsubscribe all event listeners for eventname. Do not use this pattern. You could kill internal fabricJS events. We know we should have protected events for internal flows, but we don’t have yet

Type Parameters

• K extends string | number | symbol

Parameters

• eventName: K

event name (eg. ‘after:render’)

Returns

void

Inherited from

BaseFabricObject.off

Defined in

src/Observable.ts:122

off(eventName, handler)

off<K>(eventName, handler): void

unsubscribe an event listener

Type Parameters

• K extends string | number | symbol

Parameters

• eventName: K

event name (eg. ‘after:render’)

• handler: TEventCallback<any>

event listener to unsubscribe

Returns

void

Inherited from

BaseFabricObject.off

Defined in

src/Observable.ts:128

off(handlers)

off(handlers): void

unsubscribe event listeners

Parameters

• handlers: EventRegistryObject<EventSpec>

handlers key/value pairs (eg. {‘after:render’: handler, ‘selection:cleared’: handler})

Returns

void

Inherited from

BaseFabricObject.off

Defined in

src/Observable.ts:133

off()

off(): void

unsubscribe all event listeners

Returns

void

Inherited from

BaseFabricObject.off

Defined in

src/Observable.ts:137

on()

on(eventName, handler)

on<K, E>(eventName, handler): VoidFunction

Observes specified event

Type Parameters

• K extends string | number | symbol

• E

Parameters

• eventName: K

Event name (eg. ‘after:render’)

• handler: TEventCallback<E>

Function that receives a notification when an event of the specified type occurs

Returns

VoidFunction

disposer

Alias

Inherited from

BaseFabricObject.on

Defined in

src/Observable.ts:23

on(handlers)

on(handlers): VoidFunction

Parameters

• handlers: EventRegistryObject<EventSpec>

Returns

VoidFunction

Inherited from

BaseFabricObject.on

Defined in

src/Observable.ts:27

onDeselect()

onDeselect(_options?): boolean

This callback function is called every time _discardActiveObject or _setActiveObject try to to deselect this object. If the function returns true, the process is cancelled

Parameters

• _options?

options sent from the upper functions

• _options.e?: TPointerEvent

• _options.object?: InteractiveFabricObject<Partial<FabricObjectProps>, SerializedObjectProps, ObjectEvents>

Returns

boolean

Defined in

src/shapes/Object/InteractiveObject.ts:658

onDragStart()

onDragStart(_e): boolean

Override to customize Drag behavior
Fired once a drag session has started

Parameters

• _e: DragEvent

Returns

boolean

true to handle the drag event

Defined in

src/shapes/Object/InteractiveObject.ts:691

onSelect()

onSelect(_options?): boolean

This callback function is called every time _discardActiveObject or _setActiveObject try to to select this object. If the function returns true, the process is cancelled

Parameters

• _options?

options sent from the upper functions

• _options.e?: TPointerEvent

event if the process is generated by an event

Returns

boolean

Defined in

src/shapes/Object/InteractiveObject.ts:672

once()

once(eventName, handler)

once<K, E>(eventName, handler): VoidFunction

Observes specified event once

Type Parameters

• K extends string | number | symbol

• E

Parameters

• eventName: K

Event name (eg. ‘after:render’)

• handler: TEventCallback<E>

Function that receives a notification when an event of the specified type occurs

Returns

VoidFunction

disposer

Alias

once

Inherited from

BaseFabricObject.once

Defined in

src/Observable.ts:62

once(handlers)

once(handlers): VoidFunction

Parameters

• handlers: EventRegistryObject<EventSpec>

Returns

VoidFunction

Inherited from

BaseFabricObject.once

Defined in

src/Observable.ts:66

render()

render(ctx): void

Renders an object on a specified context

Parameters

• ctx: CanvasRenderingContext2D

Context to render on

Returns

void

Inherited from

BaseFabricObject.render

Defined in

src/shapes/Object/Object.ts:661

renderCache()

renderCache(this, options?): void

Parameters

• this: TCachedFabricObject<BaseFabricObject<Partial<ObjectProps>, SerializedObjectProps, ObjectEvents>>

• options?: any

Returns

void

Inherited from

BaseFabricObject.renderCache

Defined in

src/shapes/Object/Object.ts:695

renderDragSourceEffect()

renderDragSourceEffect(_e): void

Override to customize drag and drop behavior render a specific effect when an object is the source of a drag event example: render the selection status for the part of text that is being dragged from a text object

Parameters

• _e: DragEvent

Returns

void

Defined in

src/shapes/Object/InteractiveObject.ts:712

renderDropTargetEffect()

renderDropTargetEffect(_e): void

Override to customize drag and drop behavior render a specific effect when an object is the target of a drag event used to show that the underly object can receive a drop, or to show how the object will change when dropping. example: show the cursor where the text is about to be dropped

Parameters

• _e: DragEvent

Returns

void

Defined in

src/shapes/Object/InteractiveObject.ts:724

rotate()

rotate(angle): void

Sets “angle” of an instance with centered rotation

Parameters

• angle: TDegree

Angle value (in degrees)

Returns

void

Inherited from

BaseFabricObject.rotate

Defined in

src/shapes/Object/Object.ts:1436

scale()

scale(value): void

Scales an object (equally by x and y)

Parameters

• value: number

Scale factor

Returns

void

Inherited from

BaseFabricObject.scale

Defined in

src/shapes/Object/ObjectGeometry.ts:370

scaleToHeight()

scaleToHeight(value): void

Scales an object to a given height, with respect to bounding box (scaling by x/y equally)

Parameters

• value: number

New height value

Returns

void

Inherited from

BaseFabricObject.scaleToHeight

Defined in

src/shapes/Object/ObjectGeometry.ts:393

scaleToWidth()

scaleToWidth(value): void

Scales an object to a given width, with respect to bounding box (scaling by x/y equally)

Parameters

• value: number

New width value

Returns

void

Inherited from

BaseFabricObject.scaleToWidth

Defined in

src/shapes/Object/ObjectGeometry.ts:381

set()

set(key, value?): InteractiveFabricObject<Props, SProps, EventSpec>

Sets property to a given value. When changing position/dimension -related properties (left, top, scale, angle, etc.) set does not update position of object’s borders/controls. If you need to update those, call setCoords().

Parameters

• key: string | Record<string, any>

Property name or object (if object, iterate over the object properties)

• value?: any

Property value (if function, the value is passed into it and its return value is used as a new one)

Returns

InteractiveFabricObject<Props, SProps, EventSpec>

Inherited from

BaseFabricObject.set

Defined in

src/CommonMethods.ts:29

setControlVisible()

setControlVisible(controlKey, visible): void

Sets the visibility of the specified control. please do not use.

Parameters

• controlKey: string

The key of the control. Possible values are ‘tl’, ‘tr’, ‘br’, ‘bl’, ‘ml’, ‘mt’, ‘mr’, ‘mb’, ‘mtr’. but since the control api allow for any control name, can be any string.

• visible: boolean

true to set the specified control visible, false otherwise

Returns

void

Todo

discuss this overlap of priority here with the team. Andrea Bogazzi for details

Defined in

src/shapes/Object/InteractiveObject.ts:599

setControlsVisibility()

setControlsVisibility(options?): void

Sets the visibility state of object controls, this is just a bulk option for setControlVisible;

Parameters

• options?: Record<string, boolean> = {}

with an optional key per control example: {Boolean} [options.bl] true to enable the bottom-left control, false to disable it

Returns

void

Defined in

src/shapes/Object/InteractiveObject.ts:611

setCoords()

setCoords(): void

set controls’ coordinates as well See https://github.com/fabricjs/fabric.js/wiki/When-to-call-setCoords and http://fabricjs.com/fabric-gotchas

Returns

void

Overrides

BaseFabricObject.setCoords

Defined in

src/shapes/Object/InteractiveObject.ts:343

setOnGroup()

setOnGroup(): void

This callback function is called by the parent group of an object every time a non-delegated property changes on the group. It is passed the key and value as parameters. Not adding in this function’s signature to avoid Travis build error about unused variables.

Returns

void

Inherited from

BaseFabricObject.setOnGroup

Defined in

src/shapes/Object/Object.ts:1468

setPositionByOrigin()

setPositionByOrigin(pos, originX, originY): void

Sets the position of the object taking into consideration the object’s origin

Parameters

• pos: Point

The new position of the object

• originX: TOriginX

Horizontal origin: ‘left’, ‘center’ or ‘right’

• originY: TOriginY

Vertical origin: ‘top’, ‘center’ or ‘bottom’

Returns

void

Inherited from

BaseFabricObject.setPositionByOrigin

Defined in

src/shapes/Object/ObjectGeometry.ts:777

setRelativeX()

setRelativeX(value): void

Parameters

• value: number

x position according to object’s originX property in parent’s coordinate plane
if parent is canvas then this method is identical to setX

Returns

void

Inherited from

BaseFabricObject.setRelativeX

Defined in

src/shapes/Object/ObjectGeometry.ts:123

setRelativeXY()

setRelativeXY(point, originX?, originY?): void

As setXY, but in current parent’s coordinate plane (the current group if any or the canvas)

Parameters

• point: Point

position according to object’s originX originY properties in parent’s coordinate plane

• originX?: TOriginX = ...

Horizontal origin: ‘left’, ‘center’ or ‘right’

• originY?: TOriginY = ...

Vertical origin: ‘top’, ‘center’ or ‘bottom’

Returns

void

Inherited from

BaseFabricObject.setRelativeXY

Defined in

src/shapes/Object/ObjectGeometry.ts:186

setRelativeY()

setRelativeY(value): void

Parameters

• value: number

y position according to object’s originY property in parent’s coordinate plane
if parent is canvas then this property is identical to setY

Returns

void

Inherited from

BaseFabricObject.setRelativeY

Defined in

src/shapes/Object/ObjectGeometry.ts:139

setX()

setX(value): void

Parameters

• value: number

x position according to object’s originX property in canvas coordinate plane

Returns

void

Inherited from

BaseFabricObject.setX

Defined in

src/shapes/Object/ObjectGeometry.ts:93

setXY()

setXY(point, originX?, originY?): void

Set an object position to a particular point, the point is intended in absolute ( canvas ) coordinate. You can specify originX and originY values, that otherwise are the object’s current values.

Parameters

• point: Point

position in scene coordinate plane

• originX?: TOriginX

Horizontal origin: ‘left’, ‘center’ or ‘right’

• originY?: TOriginY

Vertical origin: ‘top’, ‘center’ or ‘bottom’

Returns

void

Example

object.setXY(new Point(5, 5), 'left', 'bottom').

Inherited from

BaseFabricObject.setXY

Defined in

src/shapes/Object/ObjectGeometry.ts:163

setY()

setY(value): void

Parameters

• value: number

y position according to object’s originY property in canvas coordinate plane

Returns

void

Inherited from

BaseFabricObject.setY

Defined in

src/shapes/Object/ObjectGeometry.ts:107

shouldCache()

shouldCache(): boolean

Decide if the object should cache or not. Create its own cache level objectCaching is a global flag, wins over everything needsItsOwnCache should be used when the object drawing method requires a cache step. None of the fabric classes requires it. Generally you do not cache objects in groups because the group outside is cached. Read as: cache if is needed, or if the feature is enabled but we are not already caching.

Returns

boolean

Inherited from

BaseFabricObject.shouldCache

Defined in

src/shapes/Object/Object.ts:786

shouldStartDragging()

shouldStartDragging(_e): boolean

Override to customize Drag behavior Fired from Canvas#_onMouseMove

Parameters

• _e: TPointerEvent

Returns

boolean

true in order for the window to start a drag session

Defined in

src/shapes/Object/InteractiveObject.ts:682

strokeBorders()

strokeBorders(ctx, size): void

override this function in order to customize the drawing of the control box, e.g. rounded corners, different border style.

Parameters

• ctx: CanvasRenderingContext2D

ctx is rotated and translated so that (0,0) is at object’s center

• size: Point

the control box size used

Returns

void

Defined in

src/shapes/Object/InteractiveObject.ts:399

toCanvasElement()

toCanvasElement(options): HTMLCanvasElement

Converts an object into a HTMLCanvas element

Parameters

• options: ObjectToCanvasElementOptions = {}

Options object

Returns

HTMLCanvasElement

Returns DOM element

Inherited from

BaseFabricObject.toCanvasElement

Defined in

src/shapes/Object/Object.ts:1299

toDataURL()

toDataURL(options): string

Converts an object into a data-url-like string

Parameters

• options: toDataURLOptions = {}

Options object

Returns

string

Returns a data: URL containing a representation of the object in the format specified by options.format

Inherited from

BaseFabricObject.toDataURL

Defined in

src/shapes/Object/Object.ts:1395

toDatalessObject()

toDatalessObject(propertiesToInclude?): any

Returns (dataless) object representation of an instance

Parameters

• propertiesToInclude?: any[]

Any properties that you might want to additionally include in the output

Returns

any

Object representation of an instance

Inherited from

BaseFabricObject.toDatalessObject

Defined in

src/shapes/Object/Object.ts:1843

toJSON()

toJSON(): any

Returns a JSON representation of an instance

Returns

any

JSON

Inherited from

BaseFabricObject.toJSON

Defined in

src/shapes/Object/Object.ts:1427

toObject()

toObject(propertiesToInclude?): any

Returns an object representation of an instance

Parameters

• propertiesToInclude?: any[] = []

Any properties that you might want to additionally include in the output

Returns

any

Object representation of an instance

Inherited from

BaseFabricObject.toObject

Defined in

src/shapes/Object/Object.ts:1750

toString()

toString(): string

Returns a string representation of an instance

Returns

string

Inherited from

BaseFabricObject.toString

Defined in

src/shapes/Object/Object.ts:1883

toggle()

toggle(property): InteractiveFabricObject<Props, SProps, EventSpec>

Toggles specified property from true to false or from false to true

Parameters

• property: string

Property to toggle

Returns

InteractiveFabricObject<Props, SProps, EventSpec>

Inherited from

BaseFabricObject.toggle

Defined in

src/CommonMethods.ts:46

transform()

transform(ctx): void

Transforms context when rendering an object

Parameters

• ctx: CanvasRenderingContext2D

Context

Returns

void

Inherited from

BaseFabricObject.transform

Defined in

src/shapes/Object/Object.ts:527

transformMatrixKey()

transformMatrixKey(skipGroup): number[]

Parameters

• skipGroup: boolean = false

Returns

number[]

Inherited from

BaseFabricObject.transformMatrixKey

Defined in

src/shapes/Object/ObjectGeometry.ts:453

translateToCenterPoint()

translateToCenterPoint(point, originX, originY): Point

Translates the coordinates from origin to center coordinates (based on the object’s dimensions)

Parameters

• point: Point

The point which corresponds to the originX and originY params

• originX: TOriginX

Horizontal origin: ‘left’, ‘center’ or ‘right’

• originY: TOriginY

Vertical origin: ‘top’, ‘center’ or ‘bottom’

Returns

Point

Inherited from

BaseFabricObject.translateToCenterPoint

Defined in

src/shapes/Object/ObjectGeometry.ts:682

translateToGivenOrigin()

translateToGivenOrigin(point, fromOriginX, fromOriginY, toOriginX, toOriginY): Point

Translates the coordinates from a set of origin to another (based on the object’s dimensions)

Parameters

• point: Point

The point which corresponds to the originX and originY params

• fromOriginX: TOriginX

Horizontal origin: ‘left’, ‘center’ or ‘right’

• fromOriginY: TOriginY

Vertical origin: ‘top’, ‘center’ or ‘bottom’

• toOriginX: TOriginX

Horizontal origin: ‘left’, ‘center’ or ‘right’

• toOriginY: TOriginY

Vertical origin: ‘top’, ‘center’ or ‘bottom’

Returns

Point

Inherited from

BaseFabricObject.translateToGivenOrigin

Defined in

src/shapes/Object/ObjectGeometry.ts:654

translateToOriginPoint()

translateToOriginPoint(center, originX, originY): Point

Translates the coordinates from center to origin coordinates (based on the object’s dimensions)

Parameters

• center: Point

The point which corresponds to center of the object

• originX: TOriginX

Horizontal origin: ‘left’, ‘center’ or ‘right’

• originY: TOriginY

Vertical origin: ‘top’, ‘center’ or ‘bottom’

Returns

Point

Inherited from

BaseFabricObject.translateToOriginPoint

Defined in

src/shapes/Object/ObjectGeometry.ts:710

willDrawShadow()

willDrawShadow(): boolean

Check if this object will cast a shadow with an offset. used by Group.shouldCache to know if child has a shadow recursively

Returns

boolean

Inherited from

BaseFabricObject.willDrawShadow

Defined in

src/shapes/Object/Object.ts:799

_fromObject()

static _fromObject<S>(__namedParameters, __namedParameters): Promise<S>

Type Parameters

• S extends BaseFabricObject<Partial<ObjectProps>, SerializedObjectProps, ObjectEvents>

Parameters

• __namedParameters: Record<string, unknown>

• __namedParameters: Abortable & object = {}

Returns

Promise<S>

Inherited from

BaseFabricObject._fromObject

Defined in

src/shapes/Object/Object.ts:1896

createControls()

static createControls(): object

Creates the default control object. If you prefer to have on instance of controls shared among all objects make this function return an empty object and add controls to the ownDefaults