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Class DockPanel

A widget which provides a flexible docking area for widgets. The namespace for the DockPanel class statics.

Hierarchy

Implements

  • IDisposable
  • IMessageHandler

Index

Modules

Classes

Interfaces

Type aliases

Constructors

Properties

Accessors

Methods

Type aliases

Static IAddOptions

IAddOptions: IAddOptions

A type alias for the add widget options.

Static ILayoutConfig

ILayoutConfig: ILayoutConfig

A type alias for a layout configuration object.

Static IRenderer

IRenderer: IRenderer

A type alias for a dock panel renderer;

Static InsertMode

InsertMode: InsertMode

A type alias for the supported insertion modes.

Static Mode

Mode: "single-document" | "multiple-document"

A type alias for the supported dock panel modes.

Constructors

constructor

Properties

Private _drag

_drag: Drag | null = null

Private _layoutModified

_layoutModified: Signal<this, void> = new Signal<this, void>(this)

Private _mode

_mode: Mode

Private _pressData

_pressData: IPressData | null = null

Private _renderer

_renderer: IRenderer

node

node: HTMLElement

Get the DOM node owned by the widget.

overlay

overlay: IOverlay

The overlay used by the dock panel.

Static defaultRenderer

defaultRenderer: Renderer = new Renderer()

The default Renderer instance.

Accessors

dataset

  • get dataset(): DOMStringMap

disposed

  • get disposed(): ISignal<this, void>

  • A signal emitted when the widget is disposed.

    Returns ISignal<this, void>

id

  • get id(): string
  • set id(value: string): void

  • Get the id of the widget's DOM node.

    Returns string

  • Set the id of the widget's DOM node.

    Parameters

    • value: string

    Returns void

isAttached

  • get isAttached(): boolean

isDisposed

  • get isDisposed(): boolean

isEmpty

  • get isEmpty(): boolean

isHidden

  • get isHidden(): boolean

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

layout

  • get layout(): Layout | null
  • set layout(value: Layout | null): void

  • Get 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.

    Returns Layout | null

  • 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

    Returns void

layoutModified

  • get layoutModified(): ISignal<this, void>

  • A signal emitted when the layout configuration is modified.

    Notes

    This signal is emitted whenever the current layout configuration may have changed.

    This signal is emitted asynchronously in a collapsed fashion, so that multiple synchronous modifications results in only a single emit of the signal.

    Returns ISignal<this, void>

mode

  • get mode(): Mode
  • set mode(value: Mode): void

  • Get the mode for the dock panel.

    Notes

    Changing the mode is a destructive operation with respect to the panel's layout configuration. If layout state must be preserved, save the current layout config before changing the mode.

    Returns Mode

  • Set the mode for the dock panel.

    Notes

    Changing the mode is a destructive operation with respect to the panel's layout configuration. If layout state must be preserved, save the current layout config before changing the mode.

    Parameters

    Returns void

parent

  • get parent(): Widget | null
  • set parent(value: Widget | null): void

  • Get 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.

    Returns Widget | null

  • 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

    Returns void

renderer

spacing

  • get spacing(): number
  • set spacing(value: number): void

  • Get the spacing between the widgets.

    Returns number

  • Set the spacing between the widgets.

    Parameters

    • value: number

    Returns void

title

  • 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>

Methods

Private _createHandle

  • _createHandle(): HTMLDivElement

  • Create a new handle for use by the panel.

    Returns HTMLDivElement

Private _createTabBar

Private _evtDragEnter

  • _evtDragEnter(event: IDragEvent): void

  • Handle the 'p-dragenter' event for the dock panel.

    Parameters

    • event: IDragEvent

    Returns void

Private _evtDragLeave

  • _evtDragLeave(event: IDragEvent): void

  • Handle the 'p-dragleave' event for the dock panel.

    Parameters

    • event: IDragEvent

    Returns void

Private _evtDragOver

  • _evtDragOver(event: IDragEvent): void

  • Handle the 'p-dragover' event for the dock panel.

    Parameters

    • event: IDragEvent

    Returns void

Private _evtDrop

  • _evtDrop(event: IDragEvent): void

  • Handle the 'p-drop' event for the dock panel.

    Parameters

    • event: IDragEvent

    Returns void

Private _evtKeyDown

  • _evtKeyDown(event: KeyboardEvent): void

  • Handle the 'keydown' event for the dock panel.

    Parameters

    • event: KeyboardEvent

    Returns void

Private _evtMouseDown

  • _evtMouseDown(event: MouseEvent): void

  • Handle the 'mousedown' event for the dock panel.

    Parameters

    • event: MouseEvent

    Returns void

Private _evtMouseMove

  • _evtMouseMove(event: MouseEvent): void

  • Handle the 'mousemove' event for the dock panel.

    Parameters

    • event: MouseEvent

    Returns void

Private _evtMouseUp

  • _evtMouseUp(event: MouseEvent): void

  • Handle the 'mouseup' event for the dock panel.

    Parameters

    • event: MouseEvent

    Returns void

Private _onCurrentChanged

Private _onTabActivateRequested

Private _onTabCloseRequested

Private _onTabDetachRequested

Private _onTabMoved

  • _onTabMoved(): void

  • Handle the tabMoved signal from a tab bar.

    Returns void

Private _releaseMouse

  • _releaseMouse(): void

  • Release the mouse grab for the dock panel.

    Returns void

Private _showOverlay

  • _showOverlay(clientX: number, clientY: number): Private.DropZone

  • Show the overlay indicator at the given client position.

    Returns the drop zone at the specified client position.

    Notes

    If the position is not over a valid zone, the overlay is hidden.

    Parameters

    • clientX: number
    • clientY: number

    Returns Private.DropZone

activate

  • activate(): void

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

    Notes

    This is a simple convenience method for posting the message.

    Returns void

activateWidget

  • activateWidget(widget: Widget): void

  • Activate a specified widget in the dock panel.

    Parameters

    • widget: Widget

      The widget of interest.

      Notes

      This will select and activate the given widget.

    Returns void

addClass

  • addClass(name: string): void

  • Add a class name to the widget's DOM node.

    Parameters

    • 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

addWidget

  • Add a widget to the dock panel.

    Parameters

    • widget: Widget

      The widget to add to the dock panel.

    • Default value options: IAddOptions = {}

      The additional options for adding the widget.

      Notes

      If the panel is in single document mode, the options are ignored and the widget is always added as tab in the hidden tab bar.

    Returns void

children

  • children(): IIterator<Widget>

  • Create an iterator over the widget's children.

    Returns IIterator<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.

clearFlag

  • clearFlag(flag: Flag): void

  • Clear the given widget flag.

    Notes

    This will not typically be called directly by user code.

    Parameters

    Returns void

close

  • close(): void

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

    Notes

    This is a simple convenience method for sending the message.

    Returns void

contains

  • contains(widget: Widget): boolean

  • Test whether a widget is a descendant of this widget.

    Parameters

    • widget: Widget

      The descendant widget of interest.

    Returns boolean

    true if the widget is a descendant, false otherwise.

dispose

  • dispose(): void

fit

  • fit(): void

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

    Notes

    This is a simple convenience method for posting the message.

    Returns void

handleEvent

  • handleEvent(event: Event): void

  • Handle the DOM events for the dock panel.

    Parameters

    • event: Event

      The DOM event sent to the panel.

      Notes

      This method implements the DOM EventListener interface and is called in response to events on the panel's DOM node. It should not be called directly by user code.

    Returns void

handles

  • handles(): IIterator<HTMLDivElement>

  • Create an iterator over the handles in the panel.

    Returns IIterator<HTMLDivElement>

    A new iterator over the handles in the panel.

hasClass

  • hasClass(name: string): boolean

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

    Parameters

    • name: string

      The class name of interest.

    Returns boolean

    true if the node has the class, false otherwise.

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

Protected notifyLayout

  • notifyLayout(msg: Message): void

  • Invoke the message processing routine of the widget's layout.

    Parameters

    • 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

Protected onActivateRequest

  • onActivateRequest(msg: Message): void

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

    Notes

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

    Parameters

    • msg: Message

    Returns void

Protected onAfterAttach

  • onAfterAttach(msg: Message): void

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

    Notes

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

    Parameters

    • msg: Message

    Returns void

Protected onAfterDetach

  • onAfterDetach(msg: Message): void

Protected onAfterHide

  • onAfterHide(msg: Message): void

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

    Notes

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

    Parameters

    • msg: Message

    Returns void

Protected onAfterShow

  • onAfterShow(msg: Message): void

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

    Notes

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

    Parameters

    • msg: Message

    Returns void

Protected onBeforeAttach

  • onBeforeAttach(msg: Message): void

Protected onBeforeDetach

  • onBeforeDetach(msg: Message): void

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

    Notes

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

    Parameters

    • msg: Message

    Returns void

Protected onBeforeHide

  • onBeforeHide(msg: Message): void

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

    Notes

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

    Parameters

    • msg: Message

    Returns void

Protected onBeforeShow

  • onBeforeShow(msg: Message): void

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

    Notes

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

    Parameters

    • msg: Message

    Returns void

Protected onChildAdded

Protected onChildRemoved

Protected onCloseRequest

  • onCloseRequest(msg: Message): void

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

    Notes

    The default implementation unparents or detaches the widget.

    Parameters

    • msg: Message

    Returns void

Protected onFitRequest

  • onFitRequest(msg: Message): void

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

    Notes

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

    Parameters

    • msg: Message

    Returns void

Protected onResize

  • A message handler invoked on a 'resize' message.

    Notes

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

    Parameters

    Returns void

Protected onUpdateRequest

  • onUpdateRequest(msg: Message): void

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

    Notes

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

    Parameters

    • msg: Message

    Returns void

processMessage

  • processMessage(msg: Message): void

removeClass

  • removeClass(name: string): void

  • Remove a class name from the widget's DOM node.

    Parameters

    • 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

restoreLayout

  • Restore the layout to a previously saved configuration.

    Parameters

    • config: ILayoutConfig

      The layout configuration to restore.

      Notes

      Widgets which currently belong to the layout but which are not contained in the config will be unparented.

      The dock panel automatically reverts to 'multiple-document' mode when a layout config is restored.

    Returns void

saveLayout

  • Save the current layout configuration of the dock panel.

    Returns ILayoutConfig

    A new config object for the current layout state.

    Notes

    The return value can be provided to the restoreLayout method in order to restore the layout to its current configuration.

selectWidget

  • selectWidget(widget: Widget): void

  • Select a specific widget in the dock panel.

    Parameters

    • widget: Widget

      The widget of interest.

      Notes

      This will make the widget the current widget in its tab area.

    Returns void

selectedWidgets

  • selectedWidgets(): IIterator<Widget>

  • Create an iterator over the selected widgets in the panel.

    Returns IIterator<Widget>

    A new iterator over the selected user widgets.

    Notes

    This iterator yields the widgets corresponding to the current tab of each tab bar in the panel.

setFlag

  • setFlag(flag: Flag): void

  • Set the given widget flag.

    Notes

    This will not typically be called directly by user code.

    Parameters

    Returns void

setHidden

  • setHidden(hidden: boolean): void

  • Show or hide the widget according to a boolean value.

    Parameters

    • hidden: boolean

      true to hide the widget, or false to show it.

      Notes

      This is a convenience method for hide() and show().

    Returns void

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

tabBars

  • Create an iterator over the tab bars in the panel.

    Returns IIterator<TabBar<Widget>>

    A new iterator over the tab bars in the panel.

    Notes

    This iterator does not include the user widgets.

testFlag

  • testFlag(flag: Flag): boolean

  • Test whether the given widget flag is set.

    Notes

    This will not typically be called directly by user code.

    Parameters

    Returns boolean

toggleClass

  • toggleClass(name: string, force?: boolean): boolean

  • Toggle a class name on the widget's DOM node.

    Parameters

    • name: string

      The class name to toggle on the node.

    • Optional 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.

update

  • update(): void

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

    Notes

    This is a simple convenience method for posting the message.

    Returns void

widgets

  • widgets(): IIterator<Widget>

  • Create an iterator over the user widgets in the panel.

    Returns IIterator<Widget>

    A new iterator over the user widgets in the panel.

    Notes

    This iterator does not include the generated tab bars.

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