ObjectHandler<T>

Defined in: ui.ts:1681

Override the corresponding methods, and register an instance to let Datagrok know how to handle objects of the specified type.

isApplicable is used to associate an object with the handler. When handling an object x, the platform uses the first registered handler that claims that it is applicable to that object.

TODO: search, destructuring to properties

Example: https://public.datagrok.ai/js/samples/ui/handlers/handlers

Extended by

• EntityMetaDartProxy

Type Parameters

Type Parameter	Default type
T	any

Constructors

Constructor

new ObjectHandler<T>(): ObjectHandler<T>

Returns

ObjectHandler<T>

Properties

Property	Type	Defined in
dart	any	ui.ts:1682

Accessors

helpUrl

Get Signature

get helpUrl(): string | null

Defined in: ui.ts:1689

URL of help page for the object that this meta handles.

Returns

string | null

---

markupRegexp

Get Signature

get markupRegexp(): string | null

Defined in: ui.ts:1786

Creates a regexp for detecting markup descriptions of an object

Returns

string | null

---

name

Get Signature

get name(): string

Defined in: ui.ts:1693

Returns

string

---

regexpExample

Get Signature

get regexpExample(): { example: string; nonVariablePart: string; regexpMarkup: string; } | null

Defined in: ui.ts:1702

Will be used by search providers to get suggestions (like chembl which has regexp matcher) For something like CHEMBL object handler, it should return: regexpMarkup: 'CHEMBL[0-9]+', example: 'CHEMBL1234', nonVariablePart: 'CHEMBL'

Returns

{ example: string; nonVariablePart: string; regexpMarkup: string; } | null

---

type

Get Signature

get type(): string

Defined in: ui.ts:1684

Type of the object that this meta handles.

Returns

string

Methods

fromMarkup()

fromMarkup(matches): any

Defined in: ui.ts:1781

Extract object from parsed markup description

Parameters

Parameter	Type
matches	string[]

Returns

any

---

getById()

getById(id): Promise<T | null>

Defined in: ui.ts:1706

Parameters

Parameter	Type
id	string

Returns

Promise<T | null>

---

getCanvasRenderer()

getCanvasRenderer(): CanvasRenderer | null

Defined in: ui.ts:1729

Returns

CanvasRenderer | null

---

getCaption()

getCaption(x): string

Defined in: ui.ts:1724

String representation of the [item], by default item.toString().

Parameters

Parameter	Type	Description
x	T	item

Returns

string

---

getGridCellRenderer()

getGridCellRenderer(): GridCellRenderer<any> | null

Defined in: ui.ts:1734

Returns

GridCellRenderer<any> | null

---

init()

init(): void

Defined in: ui.ts:1791

Gets called once upon the registration of meta export class.

Returns

void

---

isApplicable()

isApplicable(x): boolean

Defined in: ui.ts:1717

Override this method to check whether this meta class should handle the specified object.

Parameters

Parameter	Type	Description
x	any	specified object.

Returns

boolean

---

refresh()

refresh(x): Promise<T>

Defined in: ui.ts:1710

Parameters

Parameter	Type
x	T

Returns

Promise<T>

---

registerParamFunc()

registerParamFunc(name, run): void

Defined in: ui.ts:1839

Registers a function that takes applicable objects as the only argument. It will be suggested to run in the context menu for that object, and also in the "Actions" pane on the context panel.

Example: https://public.datagrok.ai/js/samples/ui/docking/docking

Parameters

Parameter	Type	Description
name	string	function name
run	(param) => any	a function that takes exactly one parameter

Returns

void

---

renderCard()

renderCard(x, context?): HTMLElement

Defined in: ui.ts:1754

Renders card div for the item.

Parameters

Parameter	Type	Default value
x	T	undefined
context	any	null

Returns

HTMLElement

---

renderIcon()

renderIcon(x, context?): HTMLElement

Defined in: ui.ts:1739

Renders icon for the item.

Parameters

Parameter	Type	Default value
x	T	undefined
context	any	null

Returns

HTMLElement

---

renderMarkup()

renderMarkup(x, context?): HTMLElement

Defined in: ui.ts:1744

Renders markup for the item.

Parameters

Parameter	Type	Default value
x	T	undefined
context	any	null

Returns

HTMLElement

---

renderPreview()

renderPreview(x, params?, path?): Promise<View>

Defined in: ui.ts:1764

Renders preview list for the item.

Parameters

Parameter	Type
x	T
params?	any
path?	string

Returns

Promise<View>

---

renderProperties()

renderProperties(x, context?): HTMLElement

Defined in: ui.ts:1759

Renders properties list for the item.

Parameters

Parameter	Type	Default value
x	T	undefined
context	any	null

Returns

HTMLElement

---

renderTooltip()

renderTooltip(x, context?): HTMLElement

Defined in: ui.ts:1749

Renders tooltip for the item.

Parameters

Parameter	Type	Default value
x	T	undefined
context	any	null

Returns

HTMLElement

---

renderView()

renderView(x, context?): HTMLElement

Defined in: ui.ts:1771

Renders view for the item.

Parameters

Parameter	Type	Default value
x	T	undefined
context	any	null

Returns

HTMLElement

---

toMarkup()

toMarkup(T): string | null

Defined in: ui.ts:1776

Converts object to its markup description

Parameters

Parameter	Type
T	any

Returns

string | null

---

toString()

toString(): string

Defined in: ui.ts:1695

Returns

string

---

forEntity()

static forEntity(object, context?): ObjectHandler<any> | null

Defined in: ui.ts:1814

Parameters

Parameter	Type	Default value
object	any	undefined
context	any	null

Returns

ObjectHandler<any> | null

---

forSemType()

static forSemType(semType): Promise<ObjectHandler<any>[]>

Defined in: ui.ts:1825

Parameters

Parameter	Type
semType	string

Returns

Promise<ObjectHandler<any>[]>

---

list()

static list(): ObjectHandler<any>[]

Defined in: ui.ts:1806

All registered handlers

Returns

ObjectHandler<any>[]

---

onResolve()

static onResolve(observer): Subscription

Defined in: ui.ts:1810

Parameters

Parameter	Type
observer	PartialObserver<ObjectHandlerResolutionArgs>

Returns

Subscription

---

register()

static register(meta): void

Defined in: ui.ts:1794

Registers entity handler.

Parameters

Parameter	Type
meta	ObjectHandler

Returns

void