Nav: Ctrl+tabbing to cycle through windows is now enabled regardless of _NavEnableKeyboard. (#4023, #767)

Author: ocornut

docs/CHANGELOG.txt

@@ -44,6 +44,8 @@ Other Changes:
 - Added IsMouseTripleClicked() function. Tracking multi-click count in IO structure. (#3229) [@kudaba]
 - Modals: fixed issue hovering popups inside a child inside a modal. (#4676, #4527)
 - Fixed IsWindowFocused()/IsWindowHovered() issues with childs inside popups. (#4676)
+- Nav: Ctrl+tabbing to cycle through windows is now enabled regardless of using the _NavEnableKeyboard
+  configuration flag. This is part of an effort to generalize the use of keyboard inputs. (#4023, #787).
 - Nav: tabbing now cycles through clipped items and scroll accordingly. (#4449)
 - Nav: pressing PageUp/PageDown/Home/End when in Menu layer automatically moves back to Main layer.
 - Nav: fixed resizing window from borders setting navigation to Menu layer.

imgui.cpp

@@ -10019,10 +10019,9 @@ static void ImGui::NavUpdateWindowing()
             g.NavWindowingTargetAnim = NULL;
     }
 
-    // Start CTRL-TAB or Square+L/R window selection
-    const bool nav_keyboard_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
+    // Start CTRL+Tab or Square+L/R window selection
     const bool start_windowing_with_gamepad = allow_windowing && !g.NavWindowingTarget && IsNavInputTest(ImGuiNavInput_Menu, ImGuiInputReadMode_Pressed);
-    const bool start_windowing_with_keyboard = allow_windowing && !g.NavWindowingTarget && nav_keyboard_active && io.KeyCtrl && IsKeyPressedMap(ImGuiKey_Tab);
+    const bool start_windowing_with_keyboard = allow_windowing && !g.NavWindowingTarget && io.KeyCtrl && IsKeyPressedMap(ImGuiKey_Tab);
     if (start_windowing_with_gamepad || start_windowing_with_keyboard)
         if (ImGuiWindow* window = g.NavWindow ? g.NavWindow : FindWindowNavFocusable(g.WindowsFocusOrder.Size - 1, -INT_MAX, -1))
         {
@@ -10073,6 +10072,7 @@ static void ImGui::NavUpdateWindowing()
     // Keyboard: Press and Release ALT to toggle menu layer
     // - Testing that only Alt is tested prevents Alt+Shift or AltGR from toggling menu layer.
     // - AltGR is normally Alt+Ctrl but we can't reliably detect it (not all backends/systems/layout emit it as Alt+Ctrl). But even on keyboards without AltGR we don't want Alt+Ctrl to open menu anyway.
+	const bool nav_keyboard_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableKeyboard) != 0;
     if (nav_keyboard_active && io.KeyMods == ImGuiKeyModFlags_Alt && (io.KeyModsPrev & ImGuiKeyModFlags_Alt) == 0)
     {
         g.NavWindowingToggleLayer = true;

imgui_demo.cpp

@@ -210,7 +210,8 @@ void ImGui::ShowUserGuide()
         "(double-click to auto fit window to its contents).");
     ImGui::BulletText("CTRL+Click on a slider or drag box to input value as text.");
     ImGui::BulletText("TAB/SHIFT+TAB to cycle through keyboard editable fields.");
-    if (io.FontAllowUserScaling)
+	ImGui::BulletText("CTRL+Tab to select a window.");
+	if (io.FontAllowUserScaling)
         ImGui::BulletText("CTRL+Mouse Wheel to zoom window contents.");
     ImGui::BulletText("While inputing text:\n");
     ImGui::Indent();
@@ -228,7 +229,6 @@ void ImGui::ShowUserGuide()
     ImGui::BulletText("Return to input text into a widget.");
     ImGui::BulletText("Escape to deactivate a widget, close popup, exit child window.");
     ImGui::BulletText("Alt to jump to the menu layer of a window.");
-    ImGui::BulletText("CTRL+Tab to select a window.");
     ImGui::Unindent();
 }