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Cleanup check supported and get extension locale

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This commit is contained in:
Eric Rosenbaum 2019-03-06 12:03:46 -05:00
parent 8fc3111b21
commit ee0d395b9c
1 changed files with 37 additions and 19 deletions
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56
src/extensions/scratch3_text2speech/index.js
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@ -128,6 +128,12 @@ class Scratch3Text2SpeechBlocks {
if (this.runtime) { if (this.runtime) {
runtime.on('targetWasCreated', this._onTargetCreated); runtime.on('targetWasCreated', this._onTargetCreated);
} }
/**
* A list of all Scratch locales that are supported by the extension.
* @type {Array}
*/
this._supportedLocales = this._getSupportedLocales();
} }
/** /**
@ -468,22 +474,16 @@ class Scratch3Text2SpeechBlocks {
/** /**
* Set the language code for the extension. * Set the language code for the extension.
* It is stored in the stage so it can be saved and loaded with the project. * It is stored in the stage so it can be saved and loaded with the project.
* @param {string} languageCode a Scratch locale code. * @param {string} locale a locale code.
*/ */
setCurrentLanguage (languageCode) { setCurrentLanguage (locale) {
const stage = this.runtime.getTargetForStage(); const stage = this.runtime.getTargetForStage();
if (!stage) return; if (!stage) return;
// Only set the language if it is in the list.
if (this.isSupportedLanguage(languageCode)) { if (this.isSupportedLanguage(locale)) {
// Set the language code used by the extension. There are a few stage.textToSpeechLanguage = this._getExtensionLocaleForSupportedLocale(locale);
// languages where we map multiple written languages to one spoken
// language.
for (const lang in this.LANGUAGE_INFO) {
if (this.LANGUAGE_INFO[lang].locales.includes(languageCode)) {
stage.textToSpeechLanguage = lang;
}
}
} }
// If the language is null, set it to the default language. // If the language is null, set it to the default language.
// This can occur e.g. if the extension was loaded with the editor // This can occur e.g. if the extension was loaded with the editor
// set to a language that is not in the list. // set to a language that is not in the list.
@ -492,10 +492,24 @@ class Scratch3Text2SpeechBlocks {
} }
} }
/**
* Get the extension locale for a supported locale, or null.
* @param {string} locale a locale code.
* @returns {?string} a locale supported by the extension, or null.
*/
_getExtensionLocaleForSupportedLocale (locale) {
for (const lang in this.LANGUAGE_INFO) {
if (this.LANGUAGE_INFO[lang].locales.includes(locale)) {
return lang;
}
}
return null;
}
/** /**
* Get the locale code used by the speech synthesis server corresponding to * Get the locale code used by the speech synthesis server corresponding to
* the current language code set for the extension. * the current language code set for the extension.
* @returns {string} the speech synthesis locale. * @returns {string} a speech synthesis locale.
*/ */
_getSpeechSynthLocale () { _getSpeechSynthLocale () {
let speechSynthLocale = this.LANGUAGE_INFO[this.DEFAULT_LANGUAGE].speechSynthLocale; let speechSynthLocale = this.LANGUAGE_INFO[this.DEFAULT_LANGUAGE].speechSynthLocale;
@ -505,6 +519,15 @@ class Scratch3Text2SpeechBlocks {
return speechSynthLocale; return speechSynthLocale;
} }
/**
* Get an array of the locales supported by this extension.
* @returns {Array} An array of locale strings.
*/
_getSupportedLocales () {
return Object.keys(this.LANGUAGE_INFO).reduce((acc, cur) =>
acc.concat(this.LANGUAGE_INFO[cur].locales), []);
}
/** /**
* Check if a Scratch language code is in the list of supported languages for the * Check if a Scratch language code is in the list of supported languages for the
* speech synthesis service. * speech synthesis service.
@ -512,12 +535,7 @@ class Scratch3Text2SpeechBlocks {
* @returns {boolean} true if the language code is supported. * @returns {boolean} true if the language code is supported.
*/ */
isSupportedLanguage (languageCode) { isSupportedLanguage (languageCode) {
for (const lang in this.LANGUAGE_INFO) { return this._supportedLocales.includes(languageCode);
if (this.LANGUAGE_INFO[lang].locales.includes(languageCode)) {
return true;
}
}
return false;
} }
/** /**