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    Class FlameHoverer

    Highlights maction nodes on hovering.

    Hierarchy (View Summary)

    Index
    constructor
    current document events item listener listening node nodeAccess nodeQuery pool region stoppable
    active highlighter
    AddEvents Attach Detach display Events inBBox MouseMove MouseOut MouseOver nodeAtXY RemoveEvents Start Stop stopEvent Update create stopEvent
    current: HTMLElement

    The currently selected element

    document: ExplorerMathDocument

    The current document.

    events: [string, (x: Event) => void][] = ...
    item: ExplorerMathItem = null

    The MathItem for this explorer

    listener: any = ...

    The mousemove event handler (added after a mouseover)

    listening: boolean = false

    True if the mousemove listener has been added

    node: HTMLElement

    The node on which the explorer works.

    nodeAccess: (node: HTMLElement) => void

    Accessor to extract node value that is passed to the region.

    nodeQuery: (node: HTMLElement) => boolean

    Predicate on nodes that will fire the hoverer.

    pool: ExplorerPool

    The explorer pool.

    region: Region<void>

    A region to display results.

    stoppable: boolean = true
    • get highlighter(): Highlighter

      Returns Highlighter

      The Sre highlighter associated with the walker.

    • Parameters

      • x: number

        The x-coordinate of the point to test

      • y: number

        The y-coordinate of the point to test

      • bbox: DOMRect

        The bounding box to test

      Returns boolean

      True if (x,y) is inside the bounding box

    • Process a mousemove event to see if the node under the mouse has changed, and if so, unhighlight the old one and highlight the new one.

      Parameters

      • event: MouseEvent

        The move event

      Returns void

    • Find the smallest item in the expression's DOM tree that contains am event's point.

      Parameters

      • event: MouseEvent

        The event whose (x,y) is to be used

      • query: (node: HTMLElement) => boolean

        A test for which nodes to accept

      • skip: HTMLElement[] = []

        Optional list of nodes to ignore

      • icon: HTMLElement = null

        The info icon, if there is one

      Returns HTMLElement

      The smallest matching element containing the event's point

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