feature<Launcher>: add common hotkeys

1. `Ctrl + Tab` goto next page
2. `Ctrl + W` close current active page
3. `Ctrl + T` open new page
4. `Ctrl + F` open search bar if possible
5. `Ctrl + [0-9]` go to page at given index if possible
6. `F5` refresh current repository if possible

src/Resources/Styles/ListBox.xaml

@@ -4,6 +4,7 @@
         <Setter Property="Background" Value="Transparent"/>
         <Setter Property="BorderBrush" Value="Transparent"/>
         <Setter Property="BorderThickness" Value="0"/>
+        <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="SnapsToDevicePixels" Value="True"/>
         <Setter Property="VirtualizingPanel.IsVirtualizing" Value="True"/>
 

src/Views/Launcher.xaml.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Threading.Tasks;
 using System.Windows;
+using System.Windows.Input;
 
 namespace SourceGit.Views {
 
@@ -94,5 +95,54 @@ namespace SourceGit.Views {
             GC.Collect();
         }
         #endregion
+
+        #region HOTKEYS
+        protected override void OnPreviewKeyDown(KeyEventArgs e) {
+            if (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl)) {
+                if (Keyboard.IsKeyDown(Key.Tab)) {
+                    tabs.Next();
+                    e.Handled = true;
+                    return;
+                }
+
+                if (Keyboard.IsKeyDown(Key.W)) {
+                    tabs.CloseCurrent();
+                    e.Handled = true;
+                    return;
+                }
+
+                if (Keyboard.IsKeyDown(Key.T)) {
+                    OnTabAdding(null, null);
+                    e.Handled = true;
+                    return;
+                }
+
+                if (Keyboard.IsKeyDown(Key.F)) {
+                    var dashboard = container.Get(tabs.Current) as Widgets.Dashboard;
+                    if (dashboard != null) {
+                        dashboard.OpenSearch(null, null);
+                        e.Handled = true;
+                        return;
+                    }
+                }
+
+                for (int i = 0; i < 10; i++) {
+                    if (Keyboard.IsKeyDown(Key.D1 + i)) {
+                        if (tabs.Tabs.Count > i) {
+                            tabs.Goto(tabs.Tabs[i].Id);
+                            e.Handled = true;
+                            return;
+                        }
+                    }
+                }
+            }
+
+            if (Keyboard.IsKeyDown(Key.F5)) {
+                Models.Watcher.Get(tabs.Current)?.Refresh();
+                e.Handled = true;
+                return;
+            }
+        }
+        #endregion
     }
 }

src/Views/Widgets/Dashboard.xaml.cs

@@ -319,7 +319,7 @@ namespace SourceGit.Views.Widgets {
             e.Handled = true;
         }
 
-        private void OpenSearch(object sender, RoutedEventArgs e) {
+        public void OpenSearch(object sender, RoutedEventArgs e) {
             if (popup.IsLocked) return;
             popup.Close();
 

src/Views/Widgets/PageTabBar.xaml

@@ -49,6 +49,7 @@
                     <ListBox.ItemContainerStyle>
                         <Style TargetType="{x:Type ListBoxItem}">
                             <Setter Property="AllowDrop" Value="True"/>
+                            <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
                             <Setter Property="Template">
                                 <Setter.Value>
                                     <ControlTemplate TargetType="{x:Type ListBoxItem}">

src/Views/Widgets/PageTabBar.xaml.cs

@@ -114,6 +114,25 @@ namespace SourceGit.Views.Widgets {
             return false;
         }
 
+        public void Next() {
+            container.SelectedIndex = (container.SelectedIndex + 1) % Tabs.Count;
+        }
+
+        public void CloseCurrent() {
+            var curTab = container.SelectedItem as Tab;
+            if (Tabs.Count == 1) {
+                Application.Current.Shutdown();
+            } else {
+                var idx = container.SelectedIndex;
+                Tabs.Remove(curTab);
+                RaiseEvent(new TabEventArgs(TabClosedEvent, this, curTab.Id));
+
+                var next = Tabs[idx % Tabs.Count];
+                container.SelectedItem = next;
+                RaiseEvent(new TabEventArgs(TabSelectedEvent, this, next.Id));
+            }
+        }
+
         private void CalcScrollerVisibilty(object sender, SizeChangedEventArgs e) {
             if ((sender as StackPanel).ActualWidth > scroller.ActualWidth) {
                 leftScroller.Visibility = Visibility.Visible;
@@ -143,8 +162,7 @@ namespace SourceGit.Views.Widgets {
         }
 
         private void CloseTab(object sender, RoutedEventArgs e) {
-            var btn = (sender as Button);
+            var tab = (sender as Button).DataContext as Tab;
-            var tab = btn.DataContext as Tab;
             if (tab == null) return;
 
             var curTab = container.SelectedItem as Tab;