Mercurial Repositories > eric / file comparison
comparison: eric7/Plugins/UiExtensionPlugins/Translator/TranslatorEngines/DeepLEngine.py
eric7/Plugins/UiExtensionPlugins/Translator/TranslatorEngines/DeepLEngine.py
- branch
- eric7
- changeset 8312
- 800c432b34c8
- parent 8218
- 7c09585bd960
- child 8318
- 962bce857696
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| 8311:4e8b98454baa | 8312:800c432b34c8 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2017 - 2021 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the DeepL translation engine. | |
| 8 """ | |
| 9 | |
| 10 import json | |
| 11 | |
| 12 from PyQt5.QtCore import QUrl, QByteArray, QTimer | |
| 13 | |
| 14 import Utilities | |
| 15 | |
| 16 from .TranslationEngine import TranslationEngine | |
| 17 | |
| 18 | |
| 19 class DeepLEngine(TranslationEngine): | |
| 20 """ | |
| 21 Class implementing the translation engine for the DeepL | |
| 22 translation service. | |
| 23 """ | |
| 24 TranslatorUrl = "https://api.deepl.com/v1/translate" | |
| 25 MaxTranslationTextLen = 30 * 1024 | |
| 26 | |
| 27 def __init__(self, plugin, parent=None): | |
| 28 """ | |
| 29 Constructor | |
| 30 | |
| 31 @param plugin reference to the plugin object | |
| 32 @type TranslatorPlugin | |
| 33 @param parent reference to the parent object | |
| 34 @type QObject | |
| 35 """ | |
| 36 super().__init__(plugin, parent) | |
| 37 | |
| 38 QTimer.singleShot(0, self.availableTranslationsLoaded.emit) | |
| 39 | |
| 40 def engineName(self): | |
| 41 """ | |
| 42 Public method to return the name of the engine. | |
| 43 | |
| 44 @return engine name | |
| 45 @rtype str | |
| 46 """ | |
| 47 return "deepl" | |
| 48 | |
| 49 def supportedLanguages(self): | |
| 50 """ | |
| 51 Public method to get the supported languages. | |
| 52 | |
| 53 @return list of supported language codes | |
| 54 @rtype list of str | |
| 55 """ | |
| 56 return ["de", "en", "es", "fr", "it", "nl", "pl", ] | |
| 57 | |
| 58 def getTranslation(self, requestObject, text, originalLanguage, | |
| 59 translationLanguage): | |
| 60 """ | |
| 61 Public method to translate the given text. | |
| 62 | |
| 63 @param requestObject reference to the request object | |
| 64 (TranslatorRequest) | |
| 65 @param text text to be translated (string) | |
| 66 @param originalLanguage language code of the original (string) | |
| 67 @param translationLanguage language code of the translation (string) | |
| 68 @return tuple of translated text (string) and flag indicating | |
| 69 success (boolean) | |
| 70 """ | |
| 71 if len(text) > self.MaxTranslationTextLen: | |
| 72 return ( | |
| 73 self.tr("DeepL: Text to be translated exceeds the translation" | |
| 74 " limit of {0} characters.") | |
| 75 .format(self.MaxTranslationTextLen), | |
| 76 False | |
| 77 ) | |
| 78 | |
| 79 apiKey = self.plugin.getPreferences("DeeplKey") | |
| 80 if not apiKey: | |
| 81 return self.tr("A valid DeepL Pro key is required."), False | |
| 82 | |
| 83 params = QByteArray( | |
| 84 "auth_key={0}&source_lang={1}&target_lang={2}&text=".format( | |
| 85 apiKey, originalLanguage.upper(), translationLanguage.upper()) | |
| 86 .encode("utf-8")) | |
| 87 encodedText = ( | |
| 88 QByteArray(Utilities.html_encode(text).encode("utf-8")) | |
| 89 .toPercentEncoding() | |
| 90 ) | |
| 91 request = params + encodedText | |
| 92 response, ok = requestObject.post(QUrl(self.TranslatorUrl), request) | |
| 93 if ok: | |
| 94 try: | |
| 95 responseDict = json.loads(response) | |
| 96 except ValueError: | |
| 97 return self.tr("Invalid response received from DeepL"), False | |
| 98 | |
| 99 if "translations" not in responseDict: | |
| 100 return self.tr("DeepL call returned an unknown result"), False | |
| 101 | |
| 102 translations = responseDict["translations"] | |
| 103 if len(translations) == 0: | |
| 104 return self.tr("<p>DeepL: No translation found</p>"), True | |
| 105 | |
| 106 # show sentence by sentence separated by a line | |
| 107 result = ( | |
| 108 "<p>" + | |
| 109 "<hr/>".join([t["text"] for t in translations]) + | |
| 110 "</p>" | |
| 111 ) | |
| 112 | |
| 113 else: | |
| 114 result = response | |
| 115 return result, ok |
