Interface: ISingleWidgetShell#

@jupyterlite/application.ISingleWidgetShell

The single widget application shell interface.

Hierarchy#

Properties#

node#

Readonly node: HTMLElement

Get the DOM node owned by the widget.

Inherited from#

SingleWidgetShell.node

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:37

Accessors#

currentChanged#

get currentChanged(): ISignal<ISingleWidgetShell, IChangedArgs<Widget>>

A signal emitted when the current widget changes.

Returns#

ISignal<ISingleWidgetShell, IChangedArgs<Widget>>

Inherited from#

SingleWidgetShell.currentChanged

Defined in#

packages/application/src/singleWidgetShell.ts:46

currentWidget#

get currentWidget(): null | Widget

The current widget in the shell’s main area.

Returns#

null | Widget

Inherited from#

SingleWidgetShell.currentWidget

Defined in#

packages/application/src/singleWidgetShell.ts:53

dataset#

get dataset(): DOMStringMap

The dataset for the widget’s DOM node.

Returns#

DOMStringMap

Inherited from#

SingleWidgetShell.dataset

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:81

disposed#

get disposed(): ISignal<this, void>

A signal emitted when the widget is disposed.

Returns#

ISignal<this, void>

Inherited from#

SingleWidgetShell.disposed

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:33

hiddenMode#

get hiddenMode(): HiddenMode

Get the method for hiding the widget.

Returns#

HiddenMode

Inherited from#

SingleWidgetShell.hiddenMode

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:85

set hiddenMode(value): void

Set the method for hiding the widget.

Parameters#

Name

Type

value

HiddenMode

Returns#

void

Inherited from#

SingleWidgetShell.hiddenMode

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:89

id#

get id(): string

Get the id of the widget’s DOM node.

Returns#

string

Inherited from#

SingleWidgetShell.id

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:73

set id(value): void

Set the id of the widget’s DOM node.

Parameters#

Name

Type

value

string

Returns#

void

Inherited from#

SingleWidgetShell.id

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:77

isAttached#

get isAttached(): boolean

Test whether the widget’s node is attached to the DOM.

Returns#

boolean

Inherited from#

SingleWidgetShell.isAttached

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:45

isDisposed#

get isDisposed(): boolean

Test whether the widget has been disposed.

Returns#

boolean

Inherited from#

SingleWidgetShell.isDisposed

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:41

isHidden#

get isHidden(): boolean

Test whether the widget is explicitly hidden.

Returns#

boolean

Inherited from#

SingleWidgetShell.isHidden

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:49

isVisible#

get isVisible(): boolean

Test whether the widget is visible.

Notes#

A widget is visible when it is attached to the DOM, is not explicitly hidden, and has no explicitly hidden ancestors.

Returns#

boolean

Inherited from#

SingleWidgetShell.isVisible

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:57

layout#

get layout(): null | Layout

Get the layout for the widget.

Returns#

null | Layout

Inherited from#

SingleWidgetShell.layout

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:109

set layout(value): void

Set the layout for the widget.

Notes#

The layout is single-use only. It cannot be changed after the first assignment.

The layout is disposed automatically when the widget is disposed.

Parameters#

Name

Type

value

null | Layout

Returns#

void

Inherited from#

SingleWidgetShell.layout

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:119

parent#

get parent(): null | Widget

Get the parent of the widget.

Returns#

null | Widget

Inherited from#

SingleWidgetShell.parent

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:93

set parent(value): void

Set the parent of the widget.

Notes#

Children are typically added to a widget by using a layout, which means user code will not normally set the parent widget directly.

The widget will be automatically removed from its old parent.

This is a no-op if there is no effective parent change.

Parameters#

Name

Type

value

null | Widget

Returns#

void

Inherited from#

SingleWidgetShell.parent

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:105

title#

get title(): Title<Widget>

The title object for the widget.

Notes#

The title object is used by some container widgets when displaying the widget alongside some title, such as a tab panel or side bar.

Since not all widgets will use the title, it is created on demand.

The owner property of the title is set to this widget.

Returns#

Title<Widget>

Inherited from#

SingleWidgetShell.title

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:69

Methods#

activate#

activate(): void

Post an 'activate-request' message to the widget.

Notes#

This is a simple convenience method for posting the message.

Returns#

void

Inherited from#

SingleWidgetShell.activate

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:204

activateById#

activateById(id): void

Activate a widget in its area.

Parameters#

Name

Type

id

string

Returns#

void

Inherited from#

SingleWidgetShell.activateById

Defined in#

packages/application/src/singleWidgetShell.ts:60

add#

add(widget, area?, options?): void

Add a widget to the application shell.

Parameters#

Name

Type

Description

widget

Widget

The widget being added.

area?

"main"

Optional region in the shell into which the widget should be added.

options?

IOpenOptions

Optional open options.

Returns#

void

Inherited from#

SingleWidgetShell.add

Defined in#

packages/application/src/singleWidgetShell.ts:78

addClass#

addClass(name): void

Add a class name to the widget’s DOM node.

Parameters#

Name

Type

Description

name

string

The class name to add to the node. #### Notes If the class name is already added to the node, this is a no-op. The class name must not contain whitespace.

Returns#

void

Inherited from#

SingleWidgetShell.addClass

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:157

children#

children(): IterableIterator<Widget>

Create an iterator over the widget’s children.

Returns#

IterableIterator<Widget>

A new iterator over the children of the widget.

Notes#

The widget must have a populated layout in order to have children.

If a layout is not installed, the returned iterator will be empty.

Inherited from#

SingleWidgetShell.children

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:130

clearFlag#

clearFlag(flag): void

Clear the given widget flag.

Notes#

This will not typically be called directly by user code.

Parameters#

Name

Type

flag

Flag

Returns#

void

Inherited from#

SingleWidgetShell.clearFlag

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:259

close#

close(): void

Send a 'close-request' message to the widget.

Notes#

This is a simple convenience method for sending the message.

Returns#

void

Inherited from#

SingleWidgetShell.close

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:211

contains#

contains(widget): boolean

Test whether a widget is a descendant of this widget.

Parameters#

Name

Type

Description

widget

Widget

The descendant widget of interest.

Returns#

boolean

true if the widget is a descendant, false otherwise.

Inherited from#

SingleWidgetShell.contains

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:138

dispose#

dispose(): void

Dispose of the widget and its descendant widgets.

Notes#

It is unsafe to use the widget after it has been disposed.

All calls made to this method after the first are a no-op.

Returns#

void

Inherited from#

SingleWidgetShell.dispose

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:29

fit#

fit(): void

Post a 'fit-request' message to the widget.

Notes#

This is a simple convenience method for posting the message.

Returns#

void

Inherited from#

SingleWidgetShell.fit

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:197

hasClass#

hasClass(name): boolean

Test whether the widget’s DOM node has the given class name.

Parameters#

Name

Type

Description

name

string

The class name of interest.

Returns#

boolean

true if the node has the class, false otherwise.

Inherited from#

SingleWidgetShell.hasClass

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:146

hide#

hide(): void

Hide the widget and make it hidden to its parent widget.

Notes#

This causes the isHidden property to be true.

If the widget is explicitly hidden, this is a no-op.

Returns#

void

Inherited from#

SingleWidgetShell.hide

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:229

notifyLayout#

Protected notifyLayout(msg): void

Invoke the message processing routine of the widget’s layout.

Parameters#

Name

Type

Description

msg

Message

The message to dispatch to the layout. #### Notes This is a no-op if the widget does not have a layout. This will not typically be called directly by user code.

Returns#

void

Inherited from#

SingleWidgetShell.notifyLayout

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:279

onActivateRequest#

Protected onActivateRequest(msg): void

A message handler invoked on an 'activate-request' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onActivateRequest

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:314

onAfterAttach#

Protected onAfterAttach(msg): void

A message handler invoked on an 'after-attach' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onAfterAttach

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:356

onAfterDetach#

Protected onAfterDetach(msg): void

A message handler invoked on an 'after-detach' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onAfterDetach

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:370

onAfterHide#

Protected onAfterHide(msg): void

A message handler invoked on an 'after-hide' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onAfterHide

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:342

onAfterShow#

Protected onAfterShow(msg): void

A message handler invoked on an 'after-show' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onAfterShow

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:328

onBeforeAttach#

Protected onBeforeAttach(msg): void

A message handler invoked on a 'before-attach' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onBeforeAttach

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:349

onBeforeDetach#

Protected onBeforeDetach(msg): void

A message handler invoked on a 'before-detach' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onBeforeDetach

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:363

onBeforeHide#

Protected onBeforeHide(msg): void

A message handler invoked on a 'before-hide' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onBeforeHide

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:335

onBeforeShow#

Protected onBeforeShow(msg): void

A message handler invoked on a 'before-show' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onBeforeShow

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:321

onChildAdded#

Protected onChildAdded(msg): void

A message handler invoked on a 'child-added' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

ChildMessage

Returns#

void

Inherited from#

SingleWidgetShell.onChildAdded

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:377

onChildRemoved#

Protected onChildRemoved(msg): void

A message handler invoked on a 'child-removed' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

ChildMessage

Returns#

void

Inherited from#

SingleWidgetShell.onChildRemoved

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:384

onCloseRequest#

Protected onCloseRequest(msg): void

A message handler invoked on a 'close-request' message.

Notes#

The default implementation unparents or detaches the widget.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onCloseRequest

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:286

onFitRequest#

Protected onFitRequest(msg): void

A message handler invoked on a 'fit-request' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onFitRequest

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:307

onResize#

Protected onResize(msg): void

A message handler invoked on a 'resize' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

ResizeMessage

Returns#

void

Inherited from#

SingleWidgetShell.onResize

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:293

onUpdateRequest#

Protected onUpdateRequest(msg): void

A message handler invoked on an 'update-request' message.

Notes#

The default implementation of this handler is a no-op.

Parameters#

Name

Type

msg

Message

Returns#

void

Inherited from#

SingleWidgetShell.onUpdateRequest

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:300

processMessage#

processMessage(msg): void

Process a message sent to the widget.

Parameters#

Name

Type

Description

msg

Message

The message sent to the widget. #### Notes Subclasses may reimplement this method as needed.

Returns#

void

Inherited from#

SingleWidgetShell.processMessage

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:268

removeClass#

removeClass(name): void

Remove a class name from the widget’s DOM node.

Parameters#

Name

Type

Description

name

string

The class name to remove from the node. #### Notes If the class name is not yet added to the node, this is a no-op. The class name must not contain whitespace.

Returns#

void

Inherited from#

SingleWidgetShell.removeClass

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:168

setFlag#

setFlag(flag): void

Set the given widget flag.

Notes#

This will not typically be called directly by user code.

Parameters#

Name

Type

flag

Flag

Returns#

void

Inherited from#

SingleWidgetShell.setFlag

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:252

setHidden#

setHidden(hidden): void

Show or hide the widget according to a boolean value.

Parameters#

Name

Type

Description

hidden

boolean

true to hide the widget, or false to show it. #### Notes This is a convenience method for hide() and show().

Returns#

void

Inherited from#

SingleWidgetShell.setHidden

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:238

show#

show(): void

Show the widget and make it visible to its parent widget.

Notes#

This causes the isHidden property to be false.

If the widget is not explicitly hidden, this is a no-op.

Returns#

void

Inherited from#

SingleWidgetShell.show

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:220

testFlag#

testFlag(flag): boolean

Test whether the given widget flag is set.

Notes#

This will not typically be called directly by user code.

Parameters#

Name

Type

flag

Flag

Returns#

boolean

Inherited from#

SingleWidgetShell.testFlag

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:245

toggleClass#

toggleClass(name, force?): boolean

Toggle a class name on the widget’s DOM node.

Parameters#

Name

Type

Description

name

string

The class name to toggle on the node.

force?

boolean

Whether to force add the class (true) or force remove the class (false). If not provided, the presence of the class will be toggled from its current state.

Returns#

boolean

true if the class is now present, false otherwise.

Notes#

The class name must not contain whitespace.

Inherited from#

SingleWidgetShell.toggleClass

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:183

update#

update(): void

Post an 'update-request' message to the widget.

Notes#

This is a simple convenience method for posting the message.

Returns#

void

Inherited from#

SingleWidgetShell.update

Defined in#

node_modules/@lumino/widgets/types/widget.d.ts:190

widgets#

widgets(area): IterableIterator<Widget>

Return the list of widgets for the given area.

Parameters#

Name

Type

Description

area

"main"

The area

Returns#

IterableIterator<Widget>

Inherited from#

SingleWidgetShell.widgets

Defined in#

packages/application/src/singleWidgetShell.ts:103

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