Enhance gamepad shortcuts and accessibility documentation

[perditavojo]

This pull request introduces enhanced support for gamepad navigation, especially for phrase menu paging, and improves code clarity and accessibility feedback. The main changes are the addition of LB/RB/LT/RT (shoulder and trigger) button event handling throughout the codebase, new phrase menu navigation features, and improved documentation and feedback for these interactions.

Gamepad event handling and interface expansion:

• Added LeftShoulderPressed and RightShoulderPressed events to IGamepadController, GameInputGamepadController, and XInputGamepadController, with appropriate event detection and clearing logic. This enables the app to respond to LB/RB button presses. [1] [2] [3] [4] [5] [6] [7]
• Updated GamepadEventBinder.BindingMap and its usage to include handlers for LB/RB/LT/RT, and improved XML documentation for all event handlers. [1] [2] [3] [4]

Phrase menu navigation improvements:

• Implemented methods in MainForm.ContextMenu.cs to allow phrase menu paging via LB/RB (previous/next page) and LT/RT (jump to first/last page). These methods provide vibration and accessibility feedback, and are now invoked from both UI and gamepad actions. [1] [2] [3] [4]
• Added a new vibration pattern (PageSwitch) for page navigation to provide clearer haptic feedback when switching pages.

Documentation and accessibility:

• Updated the README.md to document new gamepad shortcuts for phrase menu navigation (LB/RB for paging, LT/RT for jumping to boundaries), and clarified related behaviors. [1] [2] [3]
• Improved accessibility feedback when opening the phrase submenu, including page information and shortcut hints. [1] [2]

Minor code improvements:

• Simplified button list initialization in GamepadMessageBox.cs.
• Clarified event documentation across several files for consistency and maintainability. [1] [2] [3]

These changes collectively provide a more intuitive and responsive experience for users navigating with a gamepad, especially in phrase menu scenarios.

[Copilot]

Pull request overview

Enhances gamepad navigation by adding shoulder-button (LB/RB) events end-to-end, enabling phrase submenu paging/jump shortcuts, and updating accessibility/help documentation and resources accordingly.

Changes:

• Expanded IGamepadController + implementations/binding to support LB/RB pressed events and updated related docs.
• Added phrase submenu paging/jump actions (LB/RB paging; LT/RT jump to first/last page) with haptic + a11y feedback.
• Updated localized resources/README and added regression tests for the new binding surface.

Reviewed changes

Copilot reviewed 21 out of 27 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/InputBox.Tests/TaskExtensionsTests.cs	Adjusted cancellation test to avoid analyzer suppression (but see review note).
tests/InputBox.Tests/RestartRequestDeciderTests.cs	Formatting/EOF alignment.
tests/InputBox.Tests/RestartPromptStateTests.cs	Formatting/EOF alignment.
tests/InputBox.Tests/README.md	Updated test inventory to include new binder test and total count.
tests/InputBox.Tests/GamepadMessageBoxTests.cs	Updated stub controller to include LB/RB events and avoid unused-event pragmas.
tests/InputBox.Tests/GamepadEventBinderTests.cs	New regression test ensuring LB/RB/LT/RT bindings invoke mapped handlers.
tests/InputBox.Tests/AppSettingsTestCollection.cs	Formatting/BOM + EOF alignment.
src/InputBox/Resources/Strings.zh-Hant.resx	Added LT/RT + phrase paging/jump hints and new phrase submenu shortcut string.
src/InputBox/Resources/Strings.zh-Hans.resx	Same as above (Simplified Chinese).
src/InputBox/Resources/Strings.resx	Same as above (neutral/English).
src/InputBox/Resources/Strings.ko.resx	Same as above (Korean).
src/InputBox/Resources/Strings.ja.resx	Same as above (Japanese).
src/InputBox/Resources/Strings.fr.resx	Same as above (French).
src/InputBox/Resources/Strings.de.resx	Same as above (German).
src/InputBox/Resources/Strings.Designer.cs	Regenerated designer to expose new resource key(s) and updated string docs.
src/InputBox/MainForm.Gamepad.cs	Wired LB/RB/LT/RT handlers; added cursor boundary jump via LT/RT outside menus.
src/InputBox/MainForm.ContextMenu.cs	Refactored phrase submenu announcement and added paging/jump helpers with feedback.
src/InputBox/Core/Services/RestartRequirementSnapshot.cs	Formatting/EOF alignment.
src/InputBox/Core/Services/RestartRequestDecider.cs	Formatting/EOF alignment.
src/InputBox/Core/Services/RestartMenuTextResolver.cs	Formatting/EOF alignment.
src/InputBox/Core/Input/XInputGamepadController.cs	Added LB/RB pressed events, detection, and event clearing; improved XML docs.
src/InputBox/Core/Input/IGamepadController.cs	Added LB/RB pressed events to the interface.
src/InputBox/Core/Input/GamepadEventBinder.cs	Expanded binding map + binder wiring for LB/RB/LT/RT; improved XML docs.
src/InputBox/Core/Input/GameInputGamepadController.cs	Added LB/RB pressed events, detection, and event clearing; improved XML docs.
src/InputBox/Core/Feedback/VibrationPatterns.cs	Added PageSwitch vibration profile for page navigation feedback.
src/InputBox/Core/Controls/GamepadMessageBox.cs	Simplified button list initialization using collection expressions.
README.md	Documented LT/RT cursor boundary jump and phrase submenu paging/jump shortcuts.

Files not reviewed (1)

• src/InputBox/Resources/Strings.Designer.cs: Language not supported

[perditavojo]

@copilot apply changes based on the comments in this thread

[Copilot]

@copilot apply changes based on the comments in this thread

Applied both changes from the review thread:

1. MainForm.ContextMenu.cs:2142 — The Chinese period 。 separator was already replaced with a plain space in commit b17e056.

2. TaskExtensionsTests.cs:143-146 — Replaced Task.Run(…, TestContext.Current.CancellationToken) with Task.FromCanceled(cts.Token) in commit 24b5292. The task is now genuinely in Canceled state (not Faulted), matching the test's semantic intent of verifying that a truly cancelled task does not invoke onException.