export type PageViewport = import("./display_utils").PageViewport;
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export type TextContent = import("./api").TextContent;
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export type TextLayerParameters = {
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/**
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* - Text content to
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* render, i.e. the value returned by the page's `streamTextContent` or
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* `getTextContent` method.
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*/
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textContentSource: ReadableStream | TextContent;
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/**
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* - The DOM node that will contain the text
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* runs.
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*/
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container: HTMLElement;
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/**
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* - The target viewport to properly layout
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* the text runs.
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*/
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viewport: PageViewport;
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};
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export type TextLayerUpdateParameters = {
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/**
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* - The target viewport to properly layout
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* the text runs.
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*/
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viewport: PageViewport;
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/**
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* - Callback invoked before the textLayer is
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* updated in the DOM.
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*/
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onBefore?: Function | undefined;
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};
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export class TextLayer {
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static "__#54@#ascentCache": Map<any, any>;
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static "__#54@#canvasContexts": Map<any, any>;
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static "__#54@#canvasCtxFonts": WeakMap<object, any>;
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static "__#54@#minFontSize": null;
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static "__#54@#pendingTextLayers": Set<any>;
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static get fontFamilyMap(): any;
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/**
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* Clean-up global textLayer data.
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* @returns {undefined}
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*/
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static cleanup(): undefined;
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static "__#54@#getCtx"(lang?: null): any;
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static "__#54@#ensureCtxFont"(ctx: any, size: any, family: any): void;
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/**
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* Compute the minimum font size enforced by the browser.
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*/
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static "__#54@#ensureMinFontSizeComputed"(): void;
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static "__#54@#getAscent"(fontFamily: any, style: any, lang: any): any;
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/**
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* @param {TextLayerParameters} options
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*/
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constructor({ textContentSource, container, viewport }: TextLayerParameters);
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/**
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* Render the textLayer.
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* @returns {Promise}
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*/
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render(): Promise<any>;
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/**
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* Update a previously rendered textLayer, if necessary.
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* @param {TextLayerUpdateParameters} options
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* @returns {undefined}
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*/
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update({ viewport, onBefore }: TextLayerUpdateParameters): undefined;
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/**
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* Cancel rendering of the textLayer.
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* @returns {undefined}
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*/
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cancel(): undefined;
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/**
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* @type {Array<HTMLElement>} HTML elements that correspond to the text items
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* of the textContent input.
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* This is output and will initially be set to an empty array.
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*/
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get textDivs(): Array<HTMLElement>;
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/**
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* @type {Array<string>} Strings that correspond to the `str` property of
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* the text items of the textContent input.
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* This is output and will initially be set to an empty array
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*/
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get textContentItemsStr(): Array<string>;
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#private;
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}
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