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Copy pathtext_to_speech_settings.php
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333 lines (312 loc) · 9.27 KB
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<?php
/**
* \file
* \brief Utility for calling system speech synthesizer
*
* @package Lwt
* @author chaosarium <leonluleonlu@gmail.com>
* HugoFara <Hugo.Farajallah@protonmail.com>
* @license Unlicense <http://unlicense.org/>
* @link https://hugofara.github.io/lwt/docs/html/text__to__speech__settings_8php.html
* @since 2.2.2-fork
*/
require_once 'inc/session_utility.php';
require_once 'inc/langdefs.php';
/**
* Two-letter language code from from language name (e. g. : "English" = > "en" ).
*
* @param string $language Language name, for instance "English"
*
* @return string Two-letter language name
*/
function get_language_code($language)
{
global $langDefs;
return $langDefs[$language][1];
}
/**
* Return the language ID from a two-letter language code or a BCP 47 tag.
*
* If two languages have the same country name, only thte first one will be returned.
*
* @param string $code Two letters, or four letters separated with caret
* ("fr" or "en-US").
*
* @return int Language ID if found, -1 otherwise.
*/
function language_id_from_code($code)
{
global $langDefs;
$trimmed = substr($code, 0, 2);
foreach (get_languages() as $language => $language_id) {
$elem = $langDefs[$language];
if ($elem[0] == $trimmed) {
return $language_id;
}
}
return -1;
}
/**
* String to population a SELECT tag.
*
* @return string HTML-formatted string
*
* @global array $langDefs List of all languages.
*/
function tts_language_options()
{
$output = '';
foreach (get_languages() as $language => $language_id) {
$languageCode = get_language_code($language);
$output .= '<option value="' . $languageCode . '">' .
$language .
'</option>';
}
return $output;
}
/**
* Prepare a from for all the TTS settings.
*
* @return void
*/
function tts_settings_form()
{
?>
<form class="validate" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<table class="tab1" cellspacing="0" cellpadding="5">
<tr>
<th class="th1">Group</th>
<th class="th1">Description</th>
<th class="th1" colspan="2">Value</th>
</tr>
<tr>
<th class="th1 center" rowspan="2">Language</th>
<td class="td1 center">Language code</td>
<td class="td1 center">
<select name="LgName" id="get-language" class="notempty respinput"
onchange="populateVoiceList();">
<?php echo tts_language_options(); ?>
</select>
</td>
<td class="td1 center">
<img src="<?php print_file_path("icn/status-busy.png") ?>"
title="Field must not be empty" alt="Field must not be empty" />
</td>
</tr>
<tr>
<td class="td1 center">Region <wbr />(depends on your browser)</td>
<td class="td1 center">
<select name="LgRegName" id="region-code" class="notempty respinput">
</select>
</td>
<td class="td1 center">
<img src="<?php print_file_path("icn/status-busy.png") ?>"
title="Field must not be empty" alt="Field must not be empty" />
</td>
</tr>
<tr>
<th class="th1 center" rowspan="2">Voice</th>
<td class="td1 center">Reading Rate</td>
<td class="td1 center">
<input type="range" name="LgTTSRate" class="respinput" min="0.5" max="2" value="1" step="0.1" id="rate">
</td>
<td class="td1 center">
<img src="<?php print_file_path("icn/status.png") ?>" />
</td>
</tr>
<tr>
<td class="td1 center">Pitch</td>
<td class="td1 center">
<input type="range" name="LgPitch" class="respinput" min="0"
max="2" value="1" step="0.1" id="pitch">
</td>
<td class="td1 center">
<img src="<?php print_file_path("icn/status.png") ?>" />
</td>
</tr>
<tr>
<?php tts_demo(); ?>
</tr>
<tr>
<td class="td1 right" colspan="4">
<input type="button" value="Cancel" onclick="{resetDirty(); location.href='text_to_speech_settings.php';}" />
<input type="submit" name="op" value="Save" />
</td>
</tr>
</table>
</form>
<?php
}
/**
* Prepare a demo for TTS.
*
* @return void
*/
function tts_demo()
{
?>
<th class="th1 center">Demo</th>
<td class="td1 center" colspan="2">
<textarea id="tts-demo" title="Enter your text here" class="respinput">
Lorem ipsum dolor sit amet...
</textarea>
</td>
<td class="td1 right">
<button onclick="readingDemo();">Read</button>
</td>
<?php
}
/**
* Prepare the JavaScript content for text-to-speech.
*
* @return void
*/
function tts_js()
{
$lid = (int) getSetting('currentlanguage');
$current_language = getLanguage((string) $lid);
?>
<script type="text/javascript" charset="utf-8">
/** @var Current language being learnt. */
const CURRENT_LANGUAGE = <?php
echo json_encode(get_language_code($current_language));
?>;
/**
* Get the language country code from the page.
*
* @returns {string} Language code (e. g. "en")
*/
function getLanguageCode()
{
return $('#get-language')[0].value;
}
/**
* Get the language region code from the page.
*
* @returns {string} Region code (e. g. "US")
*/
function getRegionCode()
{
return $('#region-code')[0].value;
}
/**
* Gather data in the page to read the demo.
*
* @returns {undefined}
*/
function readingDemo()
{
let lang =
readTextAloud(
$('#tts-demo')[0].value,
getLanguageCode + (getRegionCode() ? '-' + getRegionCode() : ''),
$('#rate')[0].value,
$('#pitch')[0].value
);
}
/**
* Set the Text-to-Speech data using cookies
*/
function presetTTSData()
{
$('#get-language')[0].value = CURRENT_LANGUAGE;
$('#region-code')[0].value = getCookie(
'tts[' + CURRENT_LANGUAGE + 'RegName]'
);
$('#rate')[0].value = getCookie('tts[' + CURRENT_LANGUAGE + 'Rate]');
$('#pitch')[0].value = getCookie('tts[' + CURRENT_LANGUAGE + 'Pitch]');
}
/**
* Populate the languages region list.
*
* @returns {undefined}
*/
function populateVoiceList() {
voices = window.speechSynthesis.getVoices();
$('#region-code')[0].innerHTML = '';
const languageCode = getLanguageCode();
for (i = 0; i < voices.length ; i++) {
if (voices[i].lang != languageCode && !voices[i].default)
continue;
let option = document.createElement('option');
option.textContent = voices[i].name;
if (voices[i].default) {
option.textContent += ' -- DEFAULT';
}
option.setAttribute('data-lang', voices[i].lang);
option.setAttribute('data-name', voices[i].name);
$('#region-code')[0].appendChild(option);
}
}
$(presetTTSData);
$(populateVoiceList);
</script>
<?php
}
/**
* Make only a partial, embadable page for text-to-speech settings.
*
* @return void
*/
function tts_settings_minimal_page()
{
tts_settings_form();
tts_js();
}
/**
* Make the complete HTML page for text-to-speech settings.
*
* @param string $message A message to display when page loads.
*
* @return void
*/
function tts_settings_full_page($message)
{
pagestart('Text-to-Speech Settings', true);
if ($message != '') {
error_message_with_hide($message, false);
if ($_COOKIE[$message]) {
error_message_with_hide('Text-to-Speech settings saved!', false);
} else {
error_message_with_hide('Error: Unable to set cookies', false);
}
}
tts_settings_minimal_page();
pageend();
}
/**
* Save the text-to-speech settings as cookies.
*
* @param array $form Inputs from the main form.
*
* @return string A confirmation or an error message
*/
function tts_save_settings($form): string
{
$lgname = $form['LgName'];
$prefix = 'tts[' . $lgname;
/* Could be useful if problems with cookies
$params = session_get_cookie_params();
'domain' => isset($params['domain']),
'secure' => isset($params['secure']),
'httponly' => isset($params['httponly'])
*/
$cookie_options = array (
'expires' => strtotime('+5 years'),
'domain' =>
($_SERVER['HTTP_HOST'] != 'localhost') ? $_SERVER['HTTP_HOST'] : false,
'path' => '/',
'samesite' => 'Strict' // None || Lax || Strict
);
//setcookie($prefix . ']', $record['LgID'], $cookie_options);
setcookie($prefix . 'RegName]', $form['LgRegName'], $cookie_options);
setcookie($prefix . 'Rate]', $form['LgTTSRate'], $cookie_options);
setcookie($prefix . 'Pitch]', $form['LgPitch'], $cookie_options);
return $prefix . 'RegName]';
}
$message = '';
if (array_key_exists('op', $_REQUEST) && $_REQUEST['op'] == 'Save') {
$message = tts_save_settings($_REQUEST);
}
tts_settings_full_page($message);
?>