[WebSearchBar] Ctrl+Up/Down for changing search engines.

Closes #1090

CHANGELOG

@@ -15,6 +15,7 @@ Version 1.5.0
     * pagescreen can now save output into number of formats, including PDF
     * proxy exceptions now supports wildcards (*, ?)
     * cancel upload when trying to upload non-readable files
+    * select previous / next engines with ctrl+up/down in websearchbar
     * GreaseMonkey: added icon in statusbar
     * GreaseMonkey: added support for GM_Settings
     * GreaseMonkey: fixed userscripts when first loading plugin

src/lib/navigation/websearchbar.cpp

@@ -377,6 +377,18 @@ void WebSearchBar::keyPressEvent(QKeyEvent* event)
         }
         break;
 
+    case Qt::Key_Up:
+        if (event->modifiers() == Qt::ControlModifier) {
+            m_boxSearchType->selectPreviousItem();
+        }
+        break;
+
+    case Qt::Key_Down:
+        if (event->modifiers() == Qt::ControlModifier) {
+            m_boxSearchType->selectNextItem();
+        }
+        break;
+
     default:
         break;
     }

src/lib/tools/buttonwithmenu.cpp

@@ -45,6 +45,24 @@ void ButtonWithMenu::clearItems()
     m_items.clear();
 }
 
+void ButtonWithMenu::selectNextItem()
+{
+    int index = m_items.indexOf(m_currentItem) + 1;
+
+    if (index < m_items.size()) {
+        setCurrentIndex(index);
+    }
+}
+
+void ButtonWithMenu::selectPreviousItem()
+{
+    int index = m_items.indexOf(m_currentItem) - 1;
+
+    if (index > 0) {
+        setCurrentIndex(index);
+    }
+}
+
 void ButtonWithMenu::addItem(const Item &item)
 {
     m_items.append(item);
@@ -99,6 +117,11 @@ void ButtonWithMenu::setCurrentItem(const Item &item, bool emitSignal)
     }
 }
 
+void ButtonWithMenu::setCurrentIndex(int index, bool emitSignal)
+{
+    setCurrentItem(m_items.at(index), emitSignal);
+}
+
 void ButtonWithMenu::wheelEvent(QWheelEvent* event)
 {
     int currItemIndex = m_items.indexOf(m_currentItem);

src/lib/tools/buttonwithmenu.h

@@ -57,6 +57,7 @@ public:
     void addItems(const QVector<Item> &items);
     void removeItem(const Item &item);
     void setCurrentItem(const Item &item, bool emitSignal = true);
+    void setCurrentIndex(int index, bool emitSignal = true);
 
     Item currentItem();
     QVector<Item> allItems() { return m_items; }
@@ -70,6 +71,9 @@ signals:
 public slots:
     void clearItems();
 
+    void selectNextItem();
+    void selectPreviousItem();
+
 private slots:
     void setCurrentItem();
     void generateMenu();