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import { SelectionManager } from "./SelectionManager";
import { DocumentView } from "../views/nodes/DocumentView";
import { undoBatch } from "./UndoManager";
import * as converter from "words-to-numbers";
import { Doc } from "../../new_fields/Doc";
import { List } from "../../new_fields/List";
import { Docs, DocumentType } from "../documents/Documents";
import { CollectionViewType } from "../views/collections/CollectionBaseView";
import { Cast, CastCtor } from "../../new_fields/Types";
import { listSpec } from "../../new_fields/Schema";
import { AudioField, ImageField } from "../../new_fields/URLField";
import { HistogramField } from "../northstar/dash-fields/HistogramField";
namespace CORE {
export interface IWindow extends Window {
webkitSpeechRecognition: any;
}
}
const ConstructorMap = new Map<DocumentType, CastCtor>([
[DocumentType.COL, listSpec(Doc)],
[DocumentType.AUDIO, AudioField],
[DocumentType.IMG, ImageField],
[DocumentType.HIST, HistogramField],
[DocumentType.IMPORT, listSpec(Doc)]
]);
const tryCast = (view: DocumentView, type: DocumentType) => {
let ctor = ConstructorMap.get(type);
if (!ctor) {
return false;
}
return Cast(Doc.GetProto(view.props.Document).data, ctor) !== undefined;
};
const validate = (target: DocumentView, types: DocumentType[]) => {
for (let type of types) {
if (tryCast(target, type)) {
return true;
}
}
return false;
};
const { webkitSpeechRecognition }: CORE.IWindow = window as CORE.IWindow;
export type IndependentAction = (target: DocumentView) => any | Promise<any>;
export type DependentAction = (target: DocumentView, matches: RegExpExecArray) => any | Promise<any>;
export type RegistrationEntry = { action: IndependentAction, restrictTo?: DocumentType[] };
export type ActionPredicate = (target: DocumentView) => boolean;
export type RegexEntry = { expression: RegExp, action: DependentAction, restrictTo?: DocumentType[] };
export default class DictationManager {
public static Instance = new DictationManager();
private recognizer: any;
private isListening = false;
constructor() {
this.recognizer = new webkitSpeechRecognition();
this.recognizer.interimResults = false;
this.recognizer.continuous = true;
}
finish = (handler: any, data: any) => {
handler(data);
this.stop();
}
stop = () => {
this.recognizer.stop();
this.isListening = false;
}
listen = () => {
if (this.isListening) {
return undefined;
}
this.isListening = true;
this.recognizer.start();
return new Promise<string>((resolve, reject) => {
this.recognizer.onresult = (e: any) => this.finish(resolve, e.results[0][0].transcript);
this.recognizer.onerror = (e: any) => this.finish(reject, e);
});
}
public interpretNumber = (number: string) => {
let initial = parseInt(number);
if (!isNaN(initial)) {
return initial;
}
let converted = converter.wordsToNumbers(number, { fuzzy: true });
if (converted === null) {
return NaN;
}
return typeof converted === "string" ? parseInt(converted) : converted;
}
@undoBatch
public execute = async (phrase: string) => {
let targets = SelectionManager.SelectedDocuments();
if (!targets || !targets.length) {
return;
}
let entry = RegisteredCommands.Independent.get(phrase);
if (entry) {
let success = false;
for (let target of targets) {
if (!entry.restrictTo || validate(target, entry.restrictTo)) {
await entry.action(target);
success = true;
}
}
return success;
}
for (let entry of RegisteredCommands.Dependent) {
let regex = entry.expression;
let matches = regex.exec(phrase);
regex.lastIndex = 0;
if (matches !== null) {
let success = false;
for (let target of targets) {
if (!entry.restrictTo || validate(target, entry.restrictTo)) {
await entry.action(target, matches);
success = true;
}
}
return success;
}
}
return false;
}
}
export namespace RegisteredCommands {
export const Independent = new Map<string, RegistrationEntry>([
["clear", {
action: (target: DocumentView) => {
Doc.GetProto(target.props.Document).data = new List();
},
restrictTo: [DocumentType.COL]
}],
["open fields", {
action: (target: DocumentView) => {
let kvp = Docs.Create.KVPDocument(target.props.Document, { width: 300, height: 300 });
target.props.addDocTab(kvp, target.dataDoc, "onRight");
}
}]
]);
export const Dependent = new Array<RegexEntry>(
{
expression: /create (\w+) documents of type (image|nested collection)/g,
action: (target: DocumentView, matches: RegExpExecArray) => {
let count = DictationManager.Instance.interpretNumber(matches[1]);
let what = matches[2];
let dataDoc = Doc.GetProto(target.props.Document);
let fieldKey = "data";
for (let i = 0; i < count; i++) {
let created: Doc | undefined;
switch (what) {
case "image":
created = Docs.Create.ImageDocument("https://upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Cat03.jpg/1200px-Cat03.jpg");
break;
case "nested collection":
created = Docs.Create.FreeformDocument([], {});
break;
}
created && Doc.AddDocToList(dataDoc, fieldKey, created);
}
},
restrictTo: [DocumentType.COL]
},
{
expression: /view as (freeform|stacking|masonry|schema|tree)/g,
action: (target: DocumentView, matches: RegExpExecArray) => {
let mode = CollectionViewType.ValueOf(matches[1]);
mode && (target.props.Document.viewType = mode);
},
restrictTo: [DocumentType.COL]
}
);
}
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