// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.

#pragma once

#include "CalcViewModel/Common/Utils.h"
#include "CalcViewModel/Common/MyVirtualKey.h"

namespace CalculatorApp
{
    namespace Common
    {
    public
        ref class KeyboardShortcutManager sealed
        {
        public:
            KeyboardShortcutManager()
            {
            }

            DEPENDENCY_PROPERTY_OWNER(KeyboardShortcutManager);

            DEPENDENCY_PROPERTY_ATTACHED_WITH_CALLBACK(Platform::String ^, Character);
            DEPENDENCY_PROPERTY_ATTACHED_WITH_CALLBACK(MyVirtualKey, VirtualKey);
            DEPENDENCY_PROPERTY_ATTACHED_WITH_CALLBACK(MyVirtualKey, VirtualKeyControlChord);
            DEPENDENCY_PROPERTY_ATTACHED_WITH_CALLBACK(MyVirtualKey, VirtualKeyShiftChord);
            DEPENDENCY_PROPERTY_ATTACHED_WITH_CALLBACK(MyVirtualKey, VirtualKeyAltChord);
            DEPENDENCY_PROPERTY_ATTACHED_WITH_CALLBACK(MyVirtualKey, VirtualKeyControlShiftChord);
            DEPENDENCY_PROPERTY_ATTACHED_WITH_CALLBACK(MyVirtualKey, VirtualKeyInverseChord);
            DEPENDENCY_PROPERTY_ATTACHED_WITH_CALLBACK(MyVirtualKey, VirtualKeyControlInverseChord);

            internal :

                static void
                Initialize();

            // Sometimes, like with popups, escape is treated as special and even
            // though it is handled we get it passed through to us. In those cases
            // we need to be able to ignore it (looking at e->Handled isn't sufficient
            // because that always returns true).
            // The onlyOnce flag is used to indicate whether we should only ignore the
            // next escape, or keep ignoring until you explicitly HonorEscape.
            static void IgnoreEscape(bool onlyOnce);
            static void HonorEscape();
            static void HonorShortcuts(bool allow);
            static void DisableShortcuts(bool disable);
            static void UpdateDropDownState(bool);
            static void ShiftButtonChecked(bool checked);
            static void UpdateDropDownState(Windows::UI::Xaml::Controls::Flyout ^ aboutPageFlyout);

            static void RegisterNewAppViewId();
            static void OnWindowClosed(int viewId);

        private:
            static void OnCharacterPropertyChanged(Windows::UI::Xaml::DependencyObject ^ target, Platform::String ^ oldValue, Platform::String ^ newValue);

            static void OnVirtualKeyPropertyChanged(Windows::UI::Xaml::DependencyObject ^ target, MyVirtualKey oldValue, MyVirtualKey newValue);

            static void OnVirtualKeyControlChordPropertyChanged(Windows::UI::Xaml::DependencyObject ^ target, MyVirtualKey oldValue, MyVirtualKey newValue);

            static void OnVirtualKeyShiftChordPropertyChanged(Windows::UI::Xaml::DependencyObject ^ target, MyVirtualKey oldValue, MyVirtualKey newValue);

            static void OnVirtualKeyInverseChordPropertyChanged(Windows::UI::Xaml::DependencyObject ^ target, MyVirtualKey oldValue, MyVirtualKey newValue);

            static void
            OnVirtualKeyControlInverseChordPropertyChanged(Windows::UI::Xaml::DependencyObject ^ target, MyVirtualKey oldValue, MyVirtualKey newValue);

            static void OnVirtualKeyAltChordPropertyChanged(Windows::UI::Xaml::DependencyObject ^ target, MyVirtualKey oldValue, MyVirtualKey newValue);

            static void
            OnVirtualKeyControlShiftChordPropertyChanged(Windows::UI::Xaml::DependencyObject ^ target, MyVirtualKey oldValue, MyVirtualKey newValue);

            static void OnCharacterReceivedHandler(Windows::UI::Core::CoreWindow ^ sender, Windows::UI::Core::CharacterReceivedEventArgs ^ args);
            static void OnKeyDownHandler(Windows::UI::Core::CoreWindow ^ sender, Windows::UI::Core::KeyEventArgs ^ args);
            static void OnKeyUpHandler(Windows::UI::Core::CoreWindow ^ sender, Windows::UI::Core::KeyEventArgs ^ args);
            static void OnAcceleratorKeyActivated(Windows::UI::Core::CoreDispatcher ^, Windows::UI::Core::AcceleratorKeyEventArgs ^ args);
        };
    }
}