Theia API Documentation v1.65.0
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    Interface ExtractableWidget

    A contract for widgets that are extractable to a secondary window.

    interface ExtractableWidget {
        isExtractable: boolean;
        node: HTMLElement;
        previousArea?: Area;
        secondaryWindow: undefined | Window;
        get dataset(): DOMStringMap;
        get disposed(): ISignal<this, void>;
        get hiddenMode(): HiddenMode;
        set hiddenMode(value: HiddenMode): void;
        get id(): string;
        set id(value: string): void;
        get isAttached(): boolean;
        get isDisposed(): boolean;
        get isHidden(): boolean;
        get isVisible(): boolean;
        get layout(): null | Layout;
        set layout(value: null | Layout): void;
        get parent(): null | Widget;
        set parent(value: null | Widget): void;
        get title(): Title<Widget>;
        activate(): void;
        addClass(name: string): void;
        children(): IterableIterator<Widget>;
        clearFlag(flag: Flag): void;
        close(): void;
        contains(widget: Widget): boolean;
        dispose(): void;
        fit(): void;
        hasClass(name: string): boolean;
        hide(): void;
        notifyLayout(msg: Message): void;
        onActivateRequest(msg: Message): void;
        onAfterAttach(msg: Message): void;
        onAfterDetach(msg: Message): void;
        onAfterHide(msg: Message): void;
        onAfterShow(msg: Message): void;
        onBeforeAttach(msg: Message): void;
        onBeforeDetach(msg: Message): void;
        onBeforeHide(msg: Message): void;
        onBeforeShow(msg: Message): void;
        onChildAdded(msg: ChildMessage): void;
        onChildRemoved(msg: ChildMessage): void;
        onCloseRequest(msg: Message): void;
        onFitRequest(msg: Message): void;
        onResize(msg: Widget.ResizeMessage): void;
        onUpdateRequest(msg: Message): void;
        processMessage(msg: Message): void;
        removeClass(name: string): void;
        setFlag(flag: Flag): void;
        setHidden(hidden: boolean): void;
        show(): void;
        testFlag(flag: Flag): boolean;
        toggleClass(name: string, force?: boolean): boolean;
        update(): void;
    }

    Hierarchy (View Summary)

    Implemented by

    Index

    Properties

    isExtractable node previousArea? secondaryWindow

    Accessors

    dataset disposed hiddenMode id isAttached isDisposed isHidden isVisible layout parent title

    Methods

    activate addClass children clearFlag close contains dispose fit hasClass hide notifyLayout onActivateRequest onAfterAttach onAfterDetach onAfterHide onAfterShow onBeforeAttach onBeforeDetach onBeforeHide onBeforeShow onChildAdded onChildRemoved onCloseRequest onFitRequest onResize onUpdateRequest processMessage removeClass setFlag setHidden show testFlag toggleClass update

    Properties

    isExtractable: boolean

    Set to true to mark the widget to be extractable.

    node: HTMLElement

    Get the DOM node owned by the widget.

    previousArea?: Area

    Stores the area which contained the widget before being extracted. This is undefined if the widget wasn't extracted or if the area could not be determined

    secondaryWindow: undefined | Window

    The secondary window that the window was extracted to or undefined if it is not yet extracted.

    Accessors

    • get dataset(): DOMStringMap

      The dataset for the widget's DOM node.

      Returns DOMStringMap

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

      A signal emitted when the widget is disposed.

      Returns ISignal<this, void>

    • get hiddenMode(): HiddenMode

      Get the method for hiding the widget.

      Returns HiddenMode

    • set hiddenMode(value: HiddenMode): void

      Set the method for hiding the widget.

      Parameters

      Returns void

    • get id(): string

      Get the id of the widget's DOM node.

      Returns string

    • set id(value: string): void

      Set the id of the widget's DOM node.

      Parameters

      • value: string

      Returns void

    • get isAttached(): boolean

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

      Returns boolean

    • get isDisposed(): boolean

      Test whether the widget has been disposed.

      Returns boolean

    • get isHidden(): boolean

      Test whether the widget is explicitly hidden.

      Returns boolean

    • get isVisible(): boolean

      Test whether the widget is visible.

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

      Returns boolean

    • get layout(): null | Layout

      Get the layout for the widget.

      Returns null | Layout

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

      Set the layout for the widget.

      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

    • get parent(): null | Widget

      Get the parent of the widget.

      Returns null | Widget

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

      Set the parent of the widget.

      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

    • get title(): Title<Widget>

      The title object for the widget.

      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

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

      This is a simple convenience method for posting the message.

      Returns void

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

      Parameters

      • name: string

        The class name to add to the node.

        If the class name is already added to the node, this is a no-op.

        The class name must not contain whitespace.

      Returns void

    • Create an iterator over the widget's children.

      Returns IterableIterator<Widget>

      A new iterator over the children of the widget.

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

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

    • Clear the given widget flag.

      This will not typically be called directly by user code.

      Parameters

      Returns void

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

      This is a simple convenience method for sending the message.

      Returns void

    • 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 of the widget and its descendant widgets.

      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

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

      This is a simple convenience method for posting the message.

      Returns void

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

      This causes the isHidden property to be true.

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

      Returns void

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

      Parameters

      • msg: Message

        The message to dispatch to the layout.

        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

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

      The default implementation unparents or detaches the widget.

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

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

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

      Parameters

      Returns void

    • Process a message sent to the widget.

      Parameters

      • msg: Message

        The message sent to the widget.

        Subclasses may reimplement this method as needed.

      Returns void

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

      Parameters

      • name: string

        The class name to remove from the node.

        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

    • Set the given widget flag.

      This will not typically be called directly by user code.

      Parameters

      Returns void

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

      Parameters

      • hidden: boolean

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

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

      Returns void

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

      This causes the isHidden property to be false.

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

      Returns void

    • Test whether the given widget flag is set.

      This will not typically be called directly by user code.

      Parameters

      Returns boolean

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

      Parameters

      • name: string

        The class name to toggle on the node.

      • Optionalforce: 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.

      The class name must not contain whitespace.

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

      This is a simple convenience method for posting the message.

      Returns void

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