terminal/src/cascadia/TerminalApp/AppKeyBindings.cpp

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.

#include "pch.h"
#include "AppKeyBindings.h"
#include "KeyChordSerialization.h"

#include "AppKeyBindings.g.cpp"

using namespace winrt::Microsoft::Terminal;
using namespace winrt::TerminalApp;

namespace winrt::TerminalApp::implementation
{
    void AppKeyBindings::SetDispatch(const winrt::TerminalApp::ShortcutActionDispatch& dispatch)
    {
        _dispatch = dispatch;
    }

    void AppKeyBindings::SetKeyBinding(const TerminalApp::ShortcutAction& action,
                                       const Settings::KeyChord& chord)
    {
        _keyShortcuts[chord] = action;
    }

    Microsoft::Terminal::Settings::KeyChord AppKeyBindings::GetKeyBinding(TerminalApp::ShortcutAction const& action)
    {
        for (auto& kv : _keyShortcuts)
        {
            if (kv.second == action)
            {
                return kv.first;
            }
        }
        return { nullptr };
    }

    bool AppKeyBindings::TryKeyChord(const Settings::KeyChord& kc)
    {
        const auto keyIter = _keyShortcuts.find(kc);
        if (keyIter != _keyShortcuts.end())
        {
            const auto action = keyIter->second;
            return _dispatch.DoAction(action);
        }
        return false;
    }

    // Method Description:
    // - Takes the KeyModifier flags from Terminal and maps them to the WinRT types which are used by XAML
    // Return Value:
    // - a Windows::System::VirtualKeyModifiers object with the flags of which modifiers used.
    Windows::System::VirtualKeyModifiers AppKeyBindings::ConvertVKModifiers(Settings::KeyModifiers modifiers)
    {
        Windows::System::VirtualKeyModifiers keyModifiers = Windows::System::VirtualKeyModifiers::None;

        if (WI_IsFlagSet(modifiers, Settings::KeyModifiers::Ctrl))
        {
            keyModifiers |= Windows::System::VirtualKeyModifiers::Control;
        }
        if (WI_IsFlagSet(modifiers, Settings::KeyModifiers::Shift))
        {
            keyModifiers |= Windows::System::VirtualKeyModifiers::Shift;
        }
        if (WI_IsFlagSet(modifiers, Settings::KeyModifiers::Alt))
        {
            // note: Menu is the Alt VK_MENU
            keyModifiers |= Windows::System::VirtualKeyModifiers::Menu;
        }

        return keyModifiers;
    }

}