Add hotkey for search-help

Add a new hotkey (CTRL+J) for toggling on/off
the search-help when you are in the search field
Fixes: #4100

src/gui/SearchWidget.cpp

@@ -21,6 +21,7 @@
 
 #include <QKeyEvent>
 #include <QMenu>
+#include <QShortcut>
 #include <QToolButton>
 
 #include "core/SignalMultiplexer.h"
@@ -43,6 +44,8 @@ SearchWidget::SearchWidget(QWidget* parent)
     m_searchTimer->setSingleShot(true);
     m_clearSearchTimer->setSingleShot(true);
 
+    new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_J), this, SLOT(toggleHelpShortcut()));
+
     connect(m_ui->searchEdit, SIGNAL(textChanged(QString)), SLOT(startSearchTimer()));
     connect(m_ui->helpIcon, SIGNAL(triggered()), SLOT(toggleHelp()));
     connect(m_ui->searchIcon, SIGNAL(triggered()), SLOT(showSearchMenu()));
@@ -217,6 +220,17 @@ void SearchWidget::clearSearch()
     emit searchCanceled();
 }
 
+void SearchWidget::toggleHelpShortcut()
+{
+    if (m_helpWidget->isVisible()) {
+        toggleHelp();
+    }
+
+    if (m_ui->searchEdit->hasFocus()) {
+        toggleHelp();
+    }
+}
+
 void SearchWidget::toggleHelp()
 {
     if (m_helpWidget->isVisible()) {

src/gui/SearchWidget.h

@@ -74,6 +74,7 @@ private slots:
     void updateCaseSensitive();
     void updateLimitGroup();
     void toggleHelp();
+    void toggleHelpShortcut();
     void showSearchMenu();
     void resetSearchClearTimer();