Foundry Virtual Tabletop - API Documentation - Version 14
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    Class ApplicationAbstract

    The legacy application window that is rendered for some UI elements in Foundry VTT.

    since v13

    Hierarchy (View Summary)

    Index

    Constructors

    Properties

    _dragDrop: DragDrop[]

    DragDrop workflow handlers which are active for this Application

    _element: jQuery

    An internal reference to the HTML element this application renders

    _minimized: boolean | null

    Track whether the Application is currently minimized

    _scrollPositions: object | null

    Track the most recent scroll positions for any vertically scrolling containers

    _searchFilters: SearchFilter[]

    SearchFilter handlers which are active for this Application

    _tabs: Tabs[]

    Tab navigation handlers which are active for this Application

    appId: number

    The application ID is a unique incrementing integer which is used to identify every application window drawn by the VTT

    options: object

    The options provided to this application upon initialization

    position: object

    Track the current position and dimensions of the Application UI

    _priorState: number

    The prior render state of this Application. This allows for rendering logic to understand if the application is being rendered for the first time.

    _state: number

    The current render state of the Application

    RENDER_STATES: Readonly<
        {
            CLOSED: -1;
            CLOSING: -2;
            ERROR: -3;
            NONE: 0;
            RENDERED: 2;
            RENDERING: 1;
        },
    > = ...

    The sequence of rendering states that track the Application life-cycle.

    Accessors

    • get closing(): boolean

      Whether the Application is currently closing.

      Returns boolean

    • get element(): jQuery

      Return the active application element, if it currently exists in the DOM

      Returns jQuery

    • get id(): string

      Return the CSS application ID which uniquely references this UI element

      Returns string

    • get popOut(): boolean

      Control the rendering style of the application. If popOut is true, the application is rendered in its own wrapper window, otherwise only the inner app content is rendered

      Returns boolean

    • get rendered(): boolean

      Return a flag for whether the Application instance is currently rendered

      Returns boolean

    • get template(): string

      The path to the HTML template file which should be used to render the inner content of the app

      Returns string

    • get title(): string

      An Application window should define its own title definition logic which may be dynamic depending on its data

      Returns string

    • get defaultOptions(): ApplicationV1Options

      Assign the default options configuration which is used by this Application class. The options and values defined in this object are merged with any provided option values which are passed to the constructor upon initialization. Application subclasses may include additional options which are specific to their usage.

      Returns ApplicationV1Options

    Methods

    • Internal

      Create drag-and-drop workflow handlers for this Application

      Returns DragDrop[]

      An array of DragDrop handlers

    • Internal

      Create search filter handlers for this Application

      Returns SearchFilter[]

      An array of SearchFilter handlers

    • Internal

      Create tabbed navigation handlers for this Application

      Returns Tabs[]

      An array of Tabs handlers

    • Internal

      Customize how a new HTML Application is added and first appears in the DOM

      Parameters

      • html: jQuery

        The HTML element which is ready to be added to the DOM

      Returns void

    • Internal

      Additional actions to take when the application window is resized

      Parameters

      • event: Event

      Returns void

    • Internal

      Handle application minimization behavior - collapsing content and reducing the size of the header

      Parameters

      • ev: Event

      Returns void

    • Internal

      Render the inner application content

      Parameters

      • data: object

        The data used to render the inner template

      Returns Promise<jQuery>

      A promise resolving to the constructed jQuery object

    • Internal

      Customize how inner HTML is replaced when the application is refreshed

      Parameters

      • element: jQuery

        The original HTML processed as a jQuery object

      • html: jQuery

        New updated HTML as a jQuery object

      Returns void

    • After rendering, activate event listeners which provide interactivity for the Application. This is where user-defined Application subclasses should attach their event-handling logic.

      Parameters

      • html: jQuery

      Returns void

    • Change the currently active tab

      Parameters

      • tabName: string

        The target tab name to switch to

      • options: { group: string; triggerCallback: boolean } = {}

        Options which configure changing the tab

        • group: string

          A specific named tab group, useful if multiple sets of tabs are present

        • triggerCallback: boolean

          Whether to trigger tab-change callback functions

      Returns void

    • A convenience alias for bringToTop for when operating on an object that is either an Application or an ApplicationV2

      Returns void

    • Bring the application to the top of the rendering stack

      Returns void

    • Close the application and un-register references to it within UI mappings This function returns a Promise which resolves once the window closing animation concludes

      Parameters

      • Optionaloptions: object = {}

        Options which affect how the Application is closed

      Returns Promise<void>

      A Promise which resolves once the application is closed

      closeApplication

    • An application should define the data object used to render its template. This function may either return an Object directly, or a Promise which resolves to an Object If undefined, the default implementation will return an empty object allowing only for rendering of static HTML

      Parameters

      • options: object = {}

      Returns object | Promise<object>

    • Maximize the pop-out window, expanding it to its original size Take no action for applications which are not of the pop-out variety or are already maximized

      Returns Promise<void>

      A Promise which resolves once the maximization action has completed

    • Minimize the pop-out window, collapsing it to a small tab Take no action for applications which are not of the pop-out variety or apps which are already minimized

      Returns Promise<void>

      A Promise which resolves once the minimization action has completed

    • Render the Application by evaluating its HTML template against the object of data provided by the getData method If the Application is rendered as a pop-out window, wrap the contained HTML in an outer frame with window controls

      Parameters

      • force: boolean = false

        Add the rendered application to the DOM if it is not already present. If false, the Application will only be re-rendered if it is already present.

      • options: {
            focus?: boolean;
            height?: number;
            left?: number;
            renderContext?: string;
            renderData?: object;
            scale?: number;
            top?: number;
            width?: number;
        } = {}

        Additional rendering options which are applied to customize the way that the Application is rendered in the DOM.

        • Optionalfocus?: boolean

          Apply focus to the application, maximizing it and bringing it to the top of the vertical stack.

        • Optionalheight?: number

          The rendered height

        • Optionalleft?: number

          The left positioning attribute

        • OptionalrenderContext?: string

          A context-providing string which suggests what event triggered the render

        • OptionalrenderData?: object

          The data change which motivated the render request

        • Optionalscale?: number

          The rendered transformation scale

        • Optionaltop?: number

          The top positioning attribute

        • Optionalwidth?: number

          The rendered width

      Returns Application

      The rendered Application instance

    • Set the application position and store its new location. Returns the updated position object for the application containing the new values.

      Parameters

      • position: {
            height: string | number | null;
            left: number | null;
            scale: number | null;
            top: number | null;
            width: number | null;
        } = {}

        Positional data

        • height: string | number | null

          The application height in pixels

        • left: number | null

          The left offset position in pixels

        • scale: number | null

          The application scale as a numeric factor where 1.0 is default

        • top: number | null

          The top offset position in pixels

        • width: number | null

          The application width in pixels

      Returns
          | void
          | {
              height: number;
              left: number;
              scale: number;
              top: number;
              width: number;
          }

    • Protected

      Activate required listeners which must be enabled on every Application. These are internal interactions which should not be overridden by downstream subclasses.

      Parameters

      • html: jQuery

      Returns void

    • Protected

      Call all hooks for all applications in the inheritance chain.

      Parameters

      • hookName: string | ((className: string) => string)

        The hook being triggered, which formatted with the Application class name

      • ...hookArgs: any[]

        The arguments passed to the hook calls

      Returns void

    • Protected

      Define whether a user is able to conclude a drag-and-drop workflow for a given drop selector

      Parameters

      • selector: string

        The candidate HTML selector for the drop target

      Returns boolean

      Can the current user drop on this selector?

    • Protected

      Define whether a user is able to begin a dragstart workflow for a given drag selector

      Parameters

      • selector: string

        The candidate HTML selector for dragging

      Returns boolean

      Can the current user drag this selector?

    • Protected

      Specify the set of config buttons which should appear in the Application header. Buttons should be returned as an Array of objects. The header buttons which are added to the application can be modified by the getApplicationV1HeaderButtons hook.

      Returns ApplicationV1HeaderButton[]

      getApplicationHeaderButtons

    • Protected

      Handle changes to the active tab in a configured Tabs controller

      Parameters

      • event: MouseEvent | null

        A left click event

      • tabs: Tabs

        The Tabs controller

      • active: string

        The new active tab name

      Returns void

    • Protected

      Callback actions which occur when a dragged element is over a drop target.

      Parameters

      • event: DragEvent

        The originating DragEvent

      Returns void

    • Protected

      Callback actions which occur at the beginning of a drag start workflow.

      Parameters

      • event: DragEvent

        The originating DragEvent

      Returns void

    • Protected

      Callback actions which occur when a dragged element is dropped on a target.

      Parameters

      • event: DragEvent

        The originating DragEvent

      Returns void

    • Protected

      Handle changes to search filtering controllers which are bound to the Application

      Parameters

      • event: KeyboardEvent

        The key-up event from keyboard input

      • query: string

        The raw string input to the search field

      • rgx: RegExp

        The regular expression to test against

      • html: HTMLElement

        The HTML element which should be filtered

      Returns void

    • Protected

      An asynchronous inner function which handles the rendering of the Application

      Parameters

      • force: boolean = false

        Render and display the application even if it is not currently displayed.

      • options: object = {}

        Additional options which update the current values of the Application#options object

      Returns Promise<void>

      A Promise that resolves to the Application once rendering is complete

      renderApplication

    • Protected

      Render the outer application wrapper

      Returns Promise<jQuery>

      A promise resolving to the constructed jQuery object

    • Protected

      Restore the scroll positions of containers within the app after re-rendering the content

      Parameters

      • html: jQuery

        The HTML object being traversed

      Returns void

    • Protected

      Persist the scroll positions of containers within the app before re-rendering the content

      Parameters

      • html: jQuery

        The HTML object being traversed

      Returns void

    • Protected

      Wait for any images present in the Application to load.

      Returns Promise<void>

      A Promise that resolves when all images have loaded.

    • Internal

      Return the inheritance chain for this Application class up to (and including) it's base Application class.

      Returns Function[]