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fec189f2f3
bundler: - Prevent stack overflow. (denoland/deno#9752) testing: - Bump version - Fix handling of paths on windows. testing_macros: - Bump version - Correctly ignore files.
348 lines
9.5 KiB
TypeScript
348 lines
9.5 KiB
TypeScript
// Loaded from https://deno.land/x/cliffy@v0.18.0/prompt/_generic_suggestions.ts
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import type { KeyEvent } from "../keycode/key_event.ts";
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import {
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GenericInput,
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GenericInputKeys,
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GenericInputPromptOptions,
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GenericInputPromptSettings,
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} from "./_generic_input.ts";
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import { blue, bold, dim, stripColor, underline } from "./deps.ts";
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import { Figures } from "./figures.ts";
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import { distance } from "../_utils/distance.ts";
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/** Input keys options. */
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export interface GenericSuggestionsKeys extends GenericInputKeys {
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complete?: string[];
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next?: string[];
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previous?: string[];
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nextPage?: string[];
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previousPage?: string[];
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}
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/** Generic input prompt options. */
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export interface GenericSuggestionsOptions<T, V>
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extends GenericInputPromptOptions<T, V> {
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keys?: GenericSuggestionsKeys;
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suggestions?: Array<string | number>;
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list?: boolean;
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info?: boolean;
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listPointer?: string;
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maxRows?: number;
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}
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/** Generic input prompt settings. */
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export interface GenericSuggestionsSettings<T, V>
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extends GenericInputPromptSettings<T, V> {
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keys?: GenericSuggestionsKeys;
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suggestions?: Array<string | number>;
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list?: boolean;
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info?: boolean;
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listPointer: string;
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maxRows: number;
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}
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/** Generic input prompt representation. */
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export abstract class GenericSuggestions<
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T,
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V,
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S extends GenericSuggestionsSettings<T, V>,
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> extends GenericInput<T, V, S> {
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protected suggestionsIndex = -1;
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protected suggestionsOffset = 0;
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protected suggestions: Array<string | number> = [];
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/**
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* Prompt constructor.
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* @param settings Prompt settings.
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*/
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protected constructor(settings: S) {
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super({
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...settings,
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keys: {
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complete: ["tab"],
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next: ["up"],
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previous: ["down"],
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nextPage: ["pageup"],
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previousPage: ["pagedown"],
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...(settings.keys ?? {}),
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},
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});
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if (this.settings.suggestions) {
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this.settings.suggestions = this.settings.suggestions.slice();
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}
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}
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protected render(): Promise<void> {
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this.match();
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return super.render();
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}
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protected match(): void {
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if (!this.settings.suggestions?.length) {
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return;
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}
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const input: string = this.getCurrentInputValue().toLowerCase();
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if (!input.length) {
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this.suggestions = this.settings.suggestions.slice();
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} else {
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this.suggestions = this.settings.suggestions
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.filter((value: string | number) =>
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stripColor(value.toString())
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.toLowerCase()
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.startsWith(input)
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)
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.sort((a: string | number, b: string | number) =>
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distance((a || a).toString(), input) -
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distance((b || b).toString(), input)
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);
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}
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this.suggestionsIndex = Math.max(
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this.getCurrentInputValue().trim().length === 0 ? -1 : 0,
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Math.min(this.suggestions.length - 1, this.suggestionsIndex),
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);
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this.suggestionsOffset = Math.max(
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0,
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Math.min(
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this.suggestions.length - this.getListHeight(),
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this.suggestionsOffset,
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),
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);
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}
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protected input(): string {
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return super.input() + dim(this.getSuggestion());
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}
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protected getSuggestion(): string {
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return this.suggestions[this.suggestionsIndex]?.toString()
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.substr(
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this.getCurrentInputValue().length,
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) ?? "";
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}
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protected body(): string | Promise<string> {
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return this.getList() + this.getInfo();
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}
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protected getInfo(): string {
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if (!this.settings.info) {
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return "";
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}
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const selected: number = this.suggestionsIndex + 1;
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const matched: number = this.suggestions.length;
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const actions: Array<[string, Array<string>]> = [];
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if (this.settings.suggestions?.length) {
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if (this.settings.list) {
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actions.push(
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["Next", [Figures.ARROW_DOWN]],
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["Previous", [Figures.ARROW_UP]],
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["Next Page", [Figures.PAGE_DOWN]],
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["Previous Page", [Figures.PAGE_UP]],
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);
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} else {
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actions.push(
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["Next", [Figures.ARROW_UP]],
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["Previous", [Figures.ARROW_DOWN]],
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);
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}
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actions.push(
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["Complete", [Figures.TAB_RIGHT, dim(" or"), Figures.ARROW_RIGHT]],
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);
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}
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actions.push(
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["Submit", [Figures.ENTER]],
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);
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let info = this.settings.indent;
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if (this.settings.suggestions?.length) {
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info += (blue(Figures.INFO) + bold(` ${selected}/${matched} `));
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}
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info += actions
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.map((cur) => `${cur[0]}: ${bold(cur[1].join(" "))}`)
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.join(", ");
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return info;
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}
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protected getList(): string {
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if (!this.settings.suggestions?.length || !this.settings.list) {
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return "";
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}
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const list: Array<string> = [];
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const height: number = this.getListHeight();
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for (
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let i = this.suggestionsOffset;
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i < this.suggestionsOffset + height;
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i++
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) {
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list.push(
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this.getListItem(
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this.suggestions[i],
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this.suggestionsIndex === i,
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),
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);
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}
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if (list.length && this.settings.info) {
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list.push("");
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}
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return list.join("\n");
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}
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/**
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* Render option.
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* @param value Option.
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* @param isSelected Set to true if option is selected.
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*/
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protected getListItem(
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value: string | number,
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isSelected?: boolean,
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): string {
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let line = this.settings.indent ?? "";
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line += isSelected ? `${this.settings.listPointer} ` : " ";
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if (isSelected) {
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line += underline(this.highlight(value));
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} else {
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line += this.highlight(value);
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}
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return line;
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}
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/** Get suggestions row height. */
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protected getListHeight(
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suggestions: Array<string | number> = this.suggestions,
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): number {
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return Math.min(
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suggestions.length,
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this.settings.maxRows || suggestions.length,
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);
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}
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/**
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* Handle user input event.
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* @param event Key event.
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*/
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protected async handleEvent(event: KeyEvent): Promise<void> {
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switch (true) {
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case this.isKey(this.settings.keys, "next", event):
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if (this.settings.list) {
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this.selectPreviousSuggestion();
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} else {
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this.selectNextSuggestion();
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}
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break;
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case this.isKey(this.settings.keys, "previous", event):
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if (this.settings.list) {
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this.selectNextSuggestion();
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} else {
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this.selectPreviousSuggestion();
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}
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break;
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case this.isKey(this.settings.keys, "nextPage", event):
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if (this.settings.list) {
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this.selectPreviousSuggestionsPage();
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} else {
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this.selectNextSuggestionsPage();
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}
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break;
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case this.isKey(this.settings.keys, "previousPage", event):
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if (this.settings.list) {
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this.selectNextSuggestionsPage();
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} else {
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this.selectPreviousSuggestionsPage();
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}
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break;
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case this.isKey(this.settings.keys, "complete", event):
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this.complete();
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break;
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case this.isKey(this.settings.keys, "moveCursorRight", event):
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if (this.inputIndex < this.inputValue.length) {
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this.moveCursorRight();
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} else {
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this.complete();
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}
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break;
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default:
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await super.handleEvent(event);
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}
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}
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/** Delete char right. */
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protected deleteCharRight(): void {
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if (this.inputIndex < this.inputValue.length) {
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super.deleteCharRight();
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if (!this.getCurrentInputValue().length) {
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this.suggestionsIndex = -1;
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this.suggestionsOffset = 0;
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}
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}
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}
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protected complete(): void {
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if (this.suggestions.length && this.suggestions[this.suggestionsIndex]) {
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this.inputValue = this.suggestions[this.suggestionsIndex].toString();
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this.inputIndex = this.inputValue.length;
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this.suggestionsIndex = 0;
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this.suggestionsOffset = 0;
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}
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}
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/** Select previous suggestion. */
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protected selectPreviousSuggestion(): void {
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if (this.suggestions?.length) {
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if (this.suggestionsIndex > -1) {
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this.suggestionsIndex--;
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if (this.suggestionsIndex < this.suggestionsOffset) {
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this.suggestionsOffset--;
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}
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}
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}
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}
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/** Select next suggestion. */
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protected selectNextSuggestion(): void {
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if (this.suggestions?.length) {
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if (this.suggestionsIndex < this.suggestions.length - 1) {
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this.suggestionsIndex++;
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if (
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this.suggestionsIndex >=
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this.suggestionsOffset + this.getListHeight()
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) {
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this.suggestionsOffset++;
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}
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}
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}
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}
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/** Select previous suggestions page. */
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protected selectPreviousSuggestionsPage(): void {
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if (this.suggestions?.length) {
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const height: number = this.getListHeight();
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if (this.suggestionsOffset >= height) {
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this.suggestionsIndex -= height;
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this.suggestionsOffset -= height;
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} else if (this.suggestionsOffset > 0) {
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this.suggestionsIndex -= this.suggestionsOffset;
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this.suggestionsOffset = 0;
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}
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}
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}
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/** Select next suggestions page. */
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protected selectNextSuggestionsPage(): void {
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if (this.suggestions?.length) {
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const height: number = this.getListHeight();
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if (this.suggestionsOffset + height + height < this.suggestions.length) {
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this.suggestionsIndex += height;
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this.suggestionsOffset += height;
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} else if (this.suggestionsOffset + height < this.suggestions.length) {
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const offset = this.suggestions.length - height;
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this.suggestionsIndex += offset - this.suggestionsOffset;
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this.suggestionsOffset = offset;
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}
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}
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}
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}
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