import { VNode } from "../VNode";
import { VBindingsPreparer } from "../VBindingsPreparer";
import { VDirective } from "./VDirective";
import { VDirectiveParseContext } from "./VDirectiveParseContext";
import { VDOMUpdater } from "../VDOMUpdater";
/**
 * Directive for managing focus on form elements.
 *
 * Usage:
 *     <input v-focus>                           Focus once on mount.
 *     <input v-focus.select>                    Focus + select all on mount.
 *     <input v-focus="isOpen">                  Focus when expression transitions from falsy to truthy.
 *     <input v-focus.select="isOpen">           Conditional focus + select all.
 *     <input v-focus.cursor-end="isOpen">       Conditional focus + place caret at end.
 *
 * Behavior notes:
 * - Without an expression, the element is focused exactly once after mount.
 * - With an expression, focus fires only on the falsy -> truthy edge,
 *   so the user is not repeatedly re-focused on every reactive update.
 * - If the value is already truthy on mount, the element is focused.
 * - Focus is deferred via requestAnimationFrame so that elements which
 *   become visible just before this directive runs (e.g. inside v-if /
 *   display:none containers) can still receive focus reliably.
 */
export declare class VFocusDirective implements VDirective {
    #private;
    /**
     * @param context The context for parsing the directive.
     */
    constructor(context: VDirectiveParseContext);
    /**
     * @inheritdoc
     */
    get name(): string;
    /**
     * @inheritdoc
     */
    get vNode(): VNode;
    /**
     * @inheritdoc
     */
    get needsAnchor(): boolean;
    /**
     * @inheritdoc
     */
    get bindingsPreparer(): VBindingsPreparer | undefined;
    /**
     * @inheritdoc
     */
    get domUpdater(): VDOMUpdater | undefined;
    /**
     * @inheritdoc
     */
    get templatize(): boolean;
    /**
     * @inheritdoc
     */
    get dependentIdentifiers(): string[];
    /**
     * @inheritdoc
     */
    get onMount(): (() => void) | undefined;
    /**
     * @inheritdoc
     */
    get onMounted(): (() => void) | undefined;
    /**
     * @inheritdoc
     */
    get onUpdate(): (() => void) | undefined;
    /**
     * @inheritdoc
     */
    get onUpdated(): (() => void) | undefined;
    /**
     * @inheritdoc
     */
    get onUnmount(): (() => void) | undefined;
    /**
     * @inheritdoc
     */
    get onUnmounted(): (() => void) | undefined;
    /**
     * @inheritdoc
     */
    destroy(): void;
}