import * as _angular_core from '@angular/core';

type WrFallingTextTrigger = 'auto' | 'scroll' | 'hover' | 'click';

/**
 * Words fall like physical bodies — gravity, wall/floor collision, and
 * cursor drag-to-pick-up. Words start at their typeset position then
 * release into the simulator on trigger.
 *
 * Triggers:
 *  - `'auto'`   release immediately on mount
 *  - `'scroll'` release on viewport entry
 *  - `'hover'`  release on first hover
 *  - `'click'`  release on first click
 *
 * Highlight specific words by passing prefix-matched keywords via
 * `[highlightWords]` — matched spans get `wr-falling-text__word--hl`.
 *
 * @example
 * ```html
 * <wr-falling-text
 *   text="React-Bits is a library of animated and interactive React components."
 *   [highlightWords]="['React', 'animated', 'components']"
 *   trigger="hover"
 *   [gravity]="0.6"
 * />
 * ```
 *
 * @see https://www.reactbits.dev/text-animations/falling-text
 */
declare class WrFallingText {
    /** Text to render. Words are separated by spaces. */
    readonly text: _angular_core.InputSignal<string>;
    /** Prefix-match keywords; any word starting with one of these gets the highlight class. */
    readonly highlightWords: _angular_core.InputSignal<readonly string[]>;
    /** When to release the words into the simulator. @default 'auto' */
    readonly trigger: _angular_core.InputSignal<WrFallingTextTrigger>;
    /** Gravity in pixels/sec². @default 980 */
    readonly gravity: _angular_core.InputSignalWithTransform<number, unknown>;
    /** Font size as a CSS length. @default '1rem' */
    readonly fontSize: _angular_core.InputSignal<string>;
    private readonly wordsRef;
    private readonly host;
    private readonly destroyRef;
    private readonly isBrowser;
    private readonly platform;
    private started;
    private teardownLoop;
    protected readonly words: _angular_core.Signal<readonly {
        text: string;
        highlighted: boolean;
    }[]>;
    constructor();
    private start;
    /** Apply the body's position + angle to the DOM. */
    private commit;
    private toLocal;
    static ɵfac: _angular_core.ɵɵFactoryDeclaration<WrFallingText, never>;
    static ɵcmp: _angular_core.ɵɵComponentDeclaration<WrFallingText, "wr-falling-text", never, { "text": { "alias": "text"; "required": true; "isSignal": true; }; "highlightWords": { "alias": "highlightWords"; "required": false; "isSignal": true; }; "trigger": { "alias": "trigger"; "required": false; "isSignal": true; }; "gravity": { "alias": "gravity"; "required": false; "isSignal": true; }; "fontSize": { "alias": "fontSize"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}

export { WrFallingText };
export type { WrFallingTextTrigger };