From 1757b2b89ffa04b1f8df4709f05034b7b447e1de Mon Sep 17 00:00:00 2001
From: Gres <gres@gres.biz>
Date: Sat, 21 Mar 2020 13:04:50 +0300
Subject: [PATCH] Recreate page on webengine render error/crash

---
 src/translate/translator.cpp | 54 +++++++++++++++++++++---------------
 src/translate/translator.h   |  1 +
 2 files changed, 33 insertions(+), 22 deletions(-)

diff --git a/src/translate/translator.cpp b/src/translate/translator.cpp
index 5c64f92..ad4c444 100644
--- a/src/translate/translator.cpp
+++ b/src/translate/translator.cpp
@@ -130,28 +130,7 @@ void Translator::updateSettings()
     return;
   }
 
-  for (const auto &script : loaded) {
-    const auto &scriptName = script.first;
-    const auto &scriptText = script.second;
-    const auto pageIt = pages_.emplace(
-        scriptName, std::make_unique<WebPage>(*this, scriptText, scriptName));
-    SOFT_ASSERT(pageIt.second, continue);
-
-    const auto &page = pageIt.first->second;
-    page->setIgnoreSslErrors(settings_.ignoreSslErrors);
-    page->setTimeout(settings_.translationTimeout);
-
-    auto log = new QTextEdit(tabs_);
-    tabs_->addTab(log, scriptName);
-
-    connect(page.get(), &WebPage::log,  //
-            log, &QTextEdit::append);
-    connect(page.get(), &WebPage::urlChanged,  //
-            this, &Translator::updateUrl);
-
-    SOFT_ASSERT(log->document(), continue)
-    log->document()->setMaximumBlockCount(1000);
-  }
+  for (const auto &script : loaded) createPage(script.first, script.second);
 
   if (settings_.debugMode) {
     show();
@@ -160,6 +139,37 @@ void Translator::updateSettings()
   }
 }
 
+void Translator::createPage(const QString &scriptName,
+                            const QString &scriptText)
+{
+  pages_.erase(scriptName);
+  const auto pageIt = pages_.emplace(
+      scriptName, std::make_unique<WebPage>(*this, scriptText, scriptName));
+  SOFT_ASSERT(pageIt.second, return );
+
+  const auto &page = pageIt.first->second;
+  page->setIgnoreSslErrors(settings_.ignoreSslErrors);
+  page->setTimeout(settings_.translationTimeout);
+
+  auto log = new QTextEdit(tabs_);
+  tabs_->addTab(log, scriptName);
+
+  connect(page.get(), &WebPage::log,  //
+          log, &QTextEdit::append);
+  connect(page.get(), &WebPage::urlChanged,  //
+          this, &Translator::updateUrl);
+  connect(page.get(), &WebPage::renderProcessTerminated,  //
+          this,
+          [this, scriptName,
+           scriptText](WebPage::RenderProcessTerminationStatus status) {
+            if (status != WebPage::NormalTerminationStatus)
+              createPage(scriptName, scriptText);
+          });
+
+  SOFT_ASSERT(log->document(), return )
+  log->document()->setMaximumBlockCount(1000);
+}
+
 WebPage *Translator::currentPage() const
 {
   const auto index = tabs_->currentIndex();
diff --git a/src/translate/translator.h b/src/translate/translator.h
index df0fe49..bb6eb82 100644
--- a/src/translate/translator.h
+++ b/src/translate/translator.h
@@ -32,6 +32,7 @@ private:
   void setPageLoadImages(bool isOn);
   void processQueue();
   void markTranslated(const TaskPtr &task);
+  void createPage(const QString &scriptName, const QString &scriptText);
 
   Manager &manager_;
   const Settings &settings_;