[TabBar] Added option to always switch tabs using mouse wheel

It will switch tabs even when tabs are overflowing.

src/lib/other/qzsettings.cpp

@@ -57,6 +57,7 @@ void QzSettings::loadSettings()
     settings.beginGroup("Browser-Tabs-Settings");
     newTabPosition = settings.value("OpenNewTabsSelected", false).toBool() ? Qz::NT_SelectedTab : Qz::NT_NotSelectedTab;
     tabsOnTop = settings.value("TabsOnTop", false).toBool();
+    alwaysSwitchTabsWithWheel = settings.value("AlwaysSwitchTabsWithWheel", false).toBool();
     settings.endGroup();
 }
 

src/lib/other/qzsettings.h

@@ -60,6 +60,7 @@ public:
     // Browser-Tabs-Settings
     Qz::NewTabPositionFlag newTabPosition;
     bool tabsOnTop;
+    bool alwaysSwitchTabsWithWheel;
 };
 
 #define qzSettings Settings::staticSettings()

src/lib/preferences/preferences.cpp

@@ -228,6 +228,7 @@ Preferences::Preferences(QupZilla* mainClass, QWidget* parent)
     ui->activateLastTab->setChecked(settings.value("ActivateLastTabWhenClosingActual", false).toBool());
     ui->openNewTabAfterActive->setChecked(settings.value("newTabAfterActive", true).toBool());
     ui->openNewEmptyTabAfterActive->setChecked(settings.value("newEmptyTabAfterActive", false).toBool());
+    ui->alwaysSwitchTabsWithWheel->setChecked(settings.value("AlwaysSwitchTabsWithWheel", false).toBool());
     ui->switchToNewTabs->setChecked(settings.value("OpenNewTabsSelected", false).toBool());
     ui->dontQuitOnTab->setChecked(settings.value("dontQuitWithOneTab", false).toBool());
     ui->askWhenClosingMultipleTabs->setChecked(settings.value("AskOnClosing", false).toBool());
@@ -901,6 +902,7 @@ void Preferences::saveSettings()
     settings.setValue("ActivateLastTabWhenClosingActual", ui->activateLastTab->isChecked());
     settings.setValue("newTabAfterActive", ui->openNewTabAfterActive->isChecked());
     settings.setValue("newEmptyTabAfterActive", ui->openNewEmptyTabAfterActive->isChecked());
+    settings.setValue("AlwaysSwitchTabsWithWheel", ui->alwaysSwitchTabsWithWheel->isChecked());
     settings.setValue("OpenNewTabsSelected", ui->switchToNewTabs->isChecked());
     settings.setValue("dontQuitWithOneTab", ui->dontQuitOnTab->isChecked());
     settings.setValue("AskOnClosing", ui->askWhenClosingMultipleTabs->isChecked());

src/lib/preferences/preferences.ui

@@ -728,6 +728,13 @@
                  </property>
                 </widget>
                </item>
+               <item>
+                <widget class="QCheckBox" name="alwaysSwitchTabsWithWheel">
+                 <property name="text">
+                  <string>Always switch between tabs with mouse wheel</string>
+                 </property>
+                </widget>
+               </item>
                <item>
                 <widget class="QCheckBox" name="switchToNewTabs">
                  <property name="text">

src/lib/tools/combotabbar.cpp

@@ -19,6 +19,7 @@
 #include "toolbutton.h"
 #include "mainapplication.h"
 #include "proxystyle.h"
+#include "qzsettings.h"
 
 #include <QIcon>
 #include <QHBoxLayout>
@@ -535,6 +536,12 @@ int ComboTabBar::pinTabBarWidth() const
 void ComboTabBar::wheelEvent(QWheelEvent* event)
 {
     event->accept();
+
+    if (qzSettings->alwaysSwitchTabsWithWheel) {
+        setCurrentNextEnabledIndex(event->delta() > 0 ? -1 : 1);
+        return;
+    }
+
     if (m_mainTabBarWidget->underMouse()) {
         if (m_mainTabBarWidget->scrollBar()->isOverFlowed()) {
             m_mainTabBarWidget->scrollByWheel(event);