258 lines
7.6 KiB
C++
258 lines
7.6 KiB
C++
#include "qtcommon.h"
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#include "extension.h"
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#include "devtools.h"
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extern const wchar_t* TRANSLATION_ERROR;
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extern Synchronized<std::wstring> translateTo;
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bool useCache = true, autostartchrome = false, headlesschrome = true;
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int maxSentenceSize = 500, chromeport = 9222;
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const char* TRANSLATION_PROVIDER = "DevTools DeepL Translate";
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const wchar_t* ERROR_CHROME = L"Error: chrome not started";
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const wchar_t* ERROR_START_CHROME = L"Error: failed to start chrome or to connect to it";
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const wchar_t* ERROR_GOT_TIMEOUT = L"Error: timeout (s)";
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const wchar_t* ERROR_COMMAND_FAIL = L"Error: command failed";
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const wchar_t* ERROR_LANGUAGE = L"Error: target languages do not match";
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const wchar_t* ERROR_NOTE = L"Error: notification";
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QString URL = "https://www.deepl.com/en/translator";
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QStringList languages
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{
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"Chinese (simplified): zh",
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"Dutch: nl",
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"English: en",
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"French: fr",
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"German: de",
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"Italian: it",
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"Japanese: ja",
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"Polish: pl",
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"Portuguese: pt",
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"Russian: ru",
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"Spanish: es",
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};
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int docfound = -1, targetNodeId = -1, session = -1, pageenabled = -1, useragentflag = -1;
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long update = -1, callnumber = 0;
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std::vector<long> callqueue;
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std::pair<bool, std::wstring> Translate(const std::wstring& text, DevTools* devtools)
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{
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QString qtext = S(text);
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qtext.remove(QString(12288)); // japanese space (no need for translator)
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// Remove quotes
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bool checkquote = false;
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if ((qtext.front() == QString(12300) && qtext.back() == QString(12301)) // japanese quotation marks
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|| (qtext.front() == "\"" && qtext.back() == "\""))
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{
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checkquote = true;
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qtext.remove(0, 1);
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qtext.chop(1);
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}
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// Check specific cases (sentence has only one japanese symbol or consists of ellipsis)
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int count = qtext.count(QString(8230)); // ellipsis
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if (count == qtext.length()
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|| (count == (qtext.length() - 1) && qtext.back() == QString(12290))) // japanese end of a sentence
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{
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return { true, text };
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}
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if (count == (qtext.length() - 1))
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{
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qtext.remove(QString(8230));
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qtext += QString(12290) + QString(8230); // add the end symbol for correct translation
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}
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// Put quotes back
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if (checkquote)
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{
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qtext = "\"" + qtext + "\"";
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}
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// Check status
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if (devtools->getStatus() == "Stopped")
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{
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return { false, FormatString(L"%s", ERROR_CHROME) };
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}
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if (devtools->getStatus().startsWith("Fail") || devtools->getStatus().startsWith("Unconnected"))
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{
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return { false, FormatString(L"%s", ERROR_START_CHROME) };
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}
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if (session != devtools->getSession())
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{
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session = devtools->getSession();
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docfound = -1;
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targetNodeId = -1;
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pageenabled = -1;
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useragentflag = -1;
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update = -1;
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callnumber = 0;
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}
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// Remove tags and reduce the number of ellipsis for correct translation
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qtext.remove(QRegExp("<[^>]*>"));
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qtext.replace(QRegExp("(" + QString(8230) + ")+"), " " + QString(8230));
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// Enable page feedback
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QJsonObject root;
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int errorcode = 0;
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if (pageenabled == -1)
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{
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if (!devtools->SendRequest("Page.enable", {}, root))
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errorcode = 1;
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else
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pageenabled = 1;
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}
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// Change user-agent if in headless mode
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if (useragentflag == -1 && errorcode == 0)
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{
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QString useragent = devtools->getUserAgent();
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if (!useragent.isEmpty())
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{
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useragent.replace("HeadlessChrome", "Chrome");
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if (!devtools->SendRequest("Network.setUserAgentOverride", { {"userAgent", useragent} }, root))
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errorcode = 1;
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else
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useragentflag = 1;
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}
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}
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// Increase queue counter and wait until previous calls are done
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float timer = 0;
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int timer_stop = 10;
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long calltag = ++callnumber;
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callqueue.insert(callqueue.begin(), calltag);
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while (errorcode == 0 && callqueue.back() != calltag && timer < 2 * timer_stop)
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{
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std::this_thread::sleep_for(std::chrono::milliseconds(100));
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timer += 0.1;
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}
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if (timer >= timer_stop)
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errorcode = 5;
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// Set methods to receive
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long navigate = devtools->methodToReceive("Page.navigatedWithinDocument");
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long target = devtools->methodToReceive("DOM.attributeModified", { { "value" , "lmt__mobile_share_container" } });
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if (update == -1)
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update = devtools->methodToReceive("DOM.documentUpdated");
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// Navigate to site and wait until it is loaded
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QString fullurl = URL + "#ja/" + S(translateTo.Copy()) + "/" + qtext;
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if (errorcode == 0 && !devtools->SendRequest("Page.navigate", { {"url", fullurl} }, root))
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errorcode = 1;
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timer = 0;
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while (errorcode == 0 && !devtools->checkMethod(navigate) && timer < timer_stop)
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{
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std::this_thread::sleep_for(std::chrono::milliseconds(100));
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timer += 0.1;
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}
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if (timer >= timer_stop)
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errorcode = 2;
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// Check if document is outdated
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if (devtools->checkMethod(update))
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{
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docfound = -1;
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targetNodeId = -1;
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update = -1;
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}
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// Get document
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if (docfound == -1 && errorcode == 0)
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{
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if (!devtools->SendRequest("DOM.getDocument", {}, root))
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errorcode = 1;
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else
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docfound = root.value("result").toObject().value("root").toObject().value("nodeId").toInt();
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}
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// Get target selector
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if (targetNodeId == -1 && errorcode == 0)
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{
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if (!devtools->SendRequest("DOM.querySelector", { {"nodeId", docfound}, {"selector", "textarea.lmt__target_textarea"} }, root)
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|| root.value("result").toObject().value("nodeId").toInt() == 0)
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{
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docfound = -1;
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errorcode = 1;
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}
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else
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targetNodeId = root.value("result").toObject().value("nodeId").toInt();
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}
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// Wait for the translation to appear on the web page
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timer = 0;
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while (errorcode == 0 && !devtools->checkMethod(target) && timer < timer_stop)
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{
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std::this_thread::sleep_for(std::chrono::milliseconds(100));
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timer += 0.1;
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}
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// Catch the translation
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QString OuterHTML;
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if (errorcode == 0 && !devtools->SendRequest("DOM.getOuterHTML", { {"nodeId", targetNodeId + 1} }, root))
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{
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targetNodeId = -1;
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errorcode = 1;
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}
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else
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{
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OuterHTML = root.value("result").toObject().value("outerHTML").toString();
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}
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if (OuterHTML == "<div></div>")
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{
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// Try to catch the notification
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int noteNodeId = -1;
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if (errorcode == 0 && !devtools->SendRequest("DOM.querySelector", { {"nodeId", docfound}, {"selector", "div.lmt__system_notification"} }, root)
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|| root.value("result").toObject().value("nodeId").toInt() == 0)
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{
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errorcode = 2;
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}
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else
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{
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noteNodeId = root.value("result").toObject().value("nodeId").toInt();
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if (errorcode == 0 && devtools->SendRequest("DOM.getOuterHTML", { {"nodeId", noteNodeId} }, root))
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{
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OuterHTML = root.value("result").toObject().value("outerHTML").toString();
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}
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errorcode = 3;
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}
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}
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OuterHTML.remove(QRegExp("<[^>]*>"));
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OuterHTML = OuterHTML.trimmed();
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// Check if the translator output language does not match the selected language
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QString targetlang;
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if (errorcode == 0 && devtools->SendRequest("DOM.getAttributes", { {"nodeId", targetNodeId} }, root))
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{
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QJsonArray attributes = root.value("result").toObject().value("attributes").toArray();
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for (size_t i = 0; i < attributes.size(); i++)
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{
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if (attributes[i].toString() == "lang")
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{
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targetlang = attributes[i + 1].toString().mid(0, 2);
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if (targetlang != S(translateTo.Copy()))
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{
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errorcode = 4;
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}
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}
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}
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}
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callqueue.pop_back();
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if (errorcode == 0)
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return { true, S(OuterHTML) };
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else if (errorcode == 1)
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return { false, FormatString(L"%s", ERROR_COMMAND_FAIL) };
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else if (errorcode == 2)
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return { false, FormatString(L"%s: %d", ERROR_GOT_TIMEOUT, timer_stop) };
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else if (errorcode == 3)
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return { false, FormatString(L"%s: %s", ERROR_NOTE, S(OuterHTML)) };
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else if (errorcode == 4)
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return { false, FormatString(L"%s (%s): %s", ERROR_LANGUAGE, S(targetlang), S(OuterHTML)) };
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else if (errorcode == 5)
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return { false, FormatString(L"%s: %d", ERROR_GOT_TIMEOUT, 2*timer_stop) };
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else
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return { false, FormatString(L"%s", TRANSLATION_ERROR) };
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} |