fixes for gmail, fixed crash when editing email

src/librssguard/gui/reusable/colortoolbutton.cpp

@@ -30,11 +30,13 @@ QColor ColorToolButton::color() const {
   return m_color;
 }
 
-void ColorToolButton::setColor(const QColor& color) {
+void ColorToolButton::setColor(const QColor& color, bool inform_about_changes) {
   m_color = color;
   repaint();
 
-  emit colorChanged(m_color);
+  if (inform_about_changes) {
+    emit colorChanged(m_color);
+  }
 }
 
 void ColorToolButton::setRandomColor() {

src/librssguard/gui/reusable/colortoolbutton.h

@@ -12,7 +12,7 @@ class ColorToolButton : public QToolButton {
     explicit ColorToolButton(QWidget* parent = nullptr);
 
     QColor color() const;
-    void setColor(const QColor& color);
+    void setColor(const QColor& color, bool inform_about_changes = true);
 
     QColor alternateColor() const;
     void setAlternateColor(const QColor& alt_color);

src/librssguard/gui/richtexteditor/mrichtextedit.cpp

@@ -555,9 +555,11 @@ void MRichTextEdit::fontChanged(const QFont& f) {
 void MRichTextEdit::onCurrentCharFormatChanged(const QTextCharFormat& format) {
   fontChanged(format.font());
   m_ui.f_bgcolor->setColor(format.background().isOpaque() ? format.background().color()
-                                                          : m_ui.f_bgcolor->alternateColor());
+                                                          : m_ui.f_bgcolor->alternateColor(),
+                           false);
   m_ui.f_fgcolor->setColor(format.foreground().isOpaque() ? format.foreground().color()
-                                                          : m_ui.f_fgcolor->alternateColor());
+                                                          : m_ui.f_fgcolor->alternateColor(),
+                           false);
   m_ui.f_link->setChecked(format.isAnchor());
 }
 

src/librssguard/services/gmail/gmailnetworkfactory.cpp

@@ -688,7 +688,7 @@ QMap<QString, QString> GmailNetworkFactory::getMessageMetadata(const QString& ms
     return result;
   }
   else {
-    throw ApplicationException(tr("failed to get metadata"));
+    throw NetworkException(res.m_networkError);
   }
 }
 

src/librssguard/services/gmail/gui/formaddeditemail.cpp

@@ -59,11 +59,6 @@ void FormAddEditEmail::execForReply(Message* original_message) {
   m_ui.m_txtSubject->setEnabled(false);
   m_ui.m_txtMessage->setFocus();
 
-  auto from_header =
-    m_root->network()->getMessageMetadata(original_message->m_customId, {QSL("FROM")}, m_root->networkProxy());
-
-  // TODO: konverze html > plain
-  // QTextDocumentFragment::fromHtml(m_originalMessage->m_contents).toPlainText()
   m_ui.m_txtMessage->setText(m_originalMessage->m_contents);
   m_ui.m_txtMessage->editor()->moveCursor(QTextCursor::MoveOperation::Start);
   m_ui.m_txtMessage->editor()->insertHtml(QSL("<p>"
@@ -71,7 +66,15 @@ void FormAddEditEmail::execForReply(Message* original_message) {
                                               "</p><br/>"));
   m_ui.m_txtMessage->editor()->moveCursor(QTextCursor::MoveOperation::Start);
 
-  addRecipientRow(from_header[QSL("From")]);
+  try {
+    auto from_header =
+      m_root->network()->getMessageMetadata(original_message->m_customId, {QSL("FROM")}, m_root->networkProxy());
+    addRecipientRow(from_header.value(QSL("From")));
+  }
+  catch (const ApplicationException& ex) {
+    qWarningNN << LOGSEC_GMAIL << "Failed to get message metadata:" << QUOTE_W_SPACE_DOT(ex.message());
+  }
+
   exec();
 }
 
@@ -187,6 +190,10 @@ void FormAddEditEmail::onOkClicked() {
 }
 
 EmailRecipientControl* FormAddEditEmail::addRecipientRow(const QString& recipient) {
+  if (recipient.isEmpty()) {
+    return nullptr;
+  }
+
   auto* mail_rec = new EmailRecipientControl(recipient, this);
 
   connect(mail_rec, &EmailRecipientControl::removalRequested, this, &FormAddEditEmail::removeRecipientRow);