Add tab navigation shortcuts (for AddChat)

src/python/config_files.py

@@ -130,6 +130,9 @@ class UISettings(JSONConfigFile):
                 "scrollToBottom":
                     ["Alt+Ctrl+Shift+Down", "Alt+Ctrl+Shift+J", "End"],
 
+                "previousTab": ["Alt+Shift+Left", "Alt+Shift+H"],
+                "nextTab":     ["Alt+Shift+Right", "Alt+Shift+L"],
+
                 "focusSidePane":   ["Alt+S"],
                 "clearRoomFilter": ["Alt+Shift+S"],
                 "accountSettings": ["Alt+A"],

src/qml/Pages/AddChat/AddChat.qml

@@ -26,6 +26,7 @@ HPage {
         HTabBar {
             id: tabBar
             currentIndex: 0
+            Component.onCompleted: shortcuts.tabsTarget = this
 
             Layout.fillWidth: true
 

src/qml/Shortcuts.qml

@@ -1,11 +1,19 @@
 import QtQuick 2.12
+import QtQuick.Controls 2.12
 import "Base"
 import "utils.js" as Utils
 
 HShortcutHandler {
+    // Flickable or ListView that should be affected by scroll shortcuts
     property Item flickTarget
+
+    // TabBar that should be affected by tab navigation shortcuts
+    property TabBar tabsTarget
+
+    // DebugConsole that should be affected by console shortcuts
     property DebugConsole debugConsole
 
+
     // App
 
     HShortcut {
@@ -84,6 +92,25 @@ HShortcutHandler {
     }
 
 
+    // Tab navigation
+
+    HShortcut {
+        enabled: tabsTarget
+        sequences: settings.keys.previousTab
+        onPressed: tabsTarget.setCurrentIndex(
+            Utils.numberWrapAt(tabsTarget.currentIndex - 1, tabsTarget.count),
+        )
+    }
+
+    HShortcut {
+        enabled: tabsTarget
+        sequences: settings.keys.nextTab
+        onPressed: tabsTarget.setCurrentIndex(
+            Utils.numberWrapAt(tabsTarget.currentIndex + 1, tabsTarget.count),
+        )
+    }
+
+
     // SidePane
 
     HShortcut {