TextBrowserHelpViewer: Avoid using sender()

Avoid setting / getting QAction data.

Change-Id: I61d62f2376e09c1dfeadbbe5ada32938ff8bc821
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/help/textbrowserhelpviewer.cpp

@@ -144,8 +144,10 @@ void TextBrowserHelpViewer::addBackHistoryItems(QMenu *backMenu)
     for (int i = 1; i <= m_textBrowser->backwardHistoryCount(); ++i) {
         auto action = new QAction(backMenu);
         action->setText(m_textBrowser->historyTitle(-i));
-        action->setData(-i);
-        connect(action, &QAction::triggered, this, &TextBrowserHelpViewer::goToHistoryItem);
+        connect(action, &QAction::triggered, this, [this, index = i] {
+            for (int i = 0; i < index; ++i)
+                m_textBrowser->backward();
+        });
         backMenu->addAction(action);
     }
 }
@@ -155,8 +157,10 @@ void TextBrowserHelpViewer::addForwardHistoryItems(QMenu *forwardMenu)
     for (int i = 1; i <= m_textBrowser->forwardHistoryCount(); ++i) {
         auto action = new QAction(forwardMenu);
         action->setText(m_textBrowser->historyTitle(i));
-        action->setData(i);
-        connect(action, &QAction::triggered, this, &TextBrowserHelpViewer::goToHistoryItem);
+        connect(action, &QAction::triggered, this, [this, index = i] {
+            for (int i = 0; i < index; ++i)
+                m_textBrowser->forward();
+        });
         forwardMenu->addAction(action);
     }
 }
@@ -242,25 +246,6 @@ void TextBrowserHelpViewer::print(QPrinter *printer)
     m_textBrowser->print(printer);
 }
 
-void TextBrowserHelpViewer::goToHistoryItem()
-{
-    auto action = qobject_cast<const QAction *>(sender());
-    QTC_ASSERT(action, return);
-    bool ok = false;
-    int index = action->data().toInt(&ok);
-    QTC_ASSERT(ok, return);
-    // go back?
-    while (index < 0) {
-        m_textBrowser->backward();
-        ++index;
-    }
-    // go forward?
-    while (index > 0) {
-        m_textBrowser->forward();
-        --index;
-    }
-}
-
 // -- private
 
 TextBrowserHelpWidget::TextBrowserHelpWidget(TextBrowserHelpViewer *parent)

src/plugins/help/textbrowserhelpviewer.h

@@ -70,7 +70,6 @@ public:
     void print(QPrinter *printer) override;
 
 private:
-    void goToHistoryItem();
     void setFontAndScale(const QFont &font, qreal scale);
 
     TextBrowserHelpWidget *m_textBrowser;