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

Module Name:
- TermControlAutomationPeer.h

Abstract:
- This module provides UI Automation access to the TermControl
  to support both automation tests and accessibility (screen
  reading) applications. This mainly interacts with ScreenInfoUiaProvider
  to allow for shared code between ConHost and Windows Terminal
  accessibility providers.
- Based on the Custom Automation Peers guide on msdn
  (https://docs.microsoft.com/en-us/windows/uwp/design/accessibility/custom-automation-peers)
- Wraps the UIAutomationCore ITextProvider
  (https://docs.microsoft.com/en-us/windows/win32/api/uiautomationcore/nn-uiautomationcore-itextprovider)
  with a XAML ITextProvider
  (https://docs.microsoft.com/en-us/uwp/api/windows.ui.xaml.automation.provider.itextprovider)

Author(s):
- Carlos Zamora   (CaZamor)    2019
--*/

#pragma once

#include "TermControl.h"
#include "TermControlAutomationPeer.g.h"
#include <winrt/Microsoft.Terminal.TerminalControl.h>
#include "../types/TermControlUiaProvider.hpp"
#include "../types/IUiaEventDispatcher.h"
#include "../types/IControlAccessibilityInfo.h"

namespace winrt::Microsoft::Terminal::TerminalControl::implementation
{
    struct TermControlAutomationPeer :
        public TermControlAutomationPeerT<TermControlAutomationPeer>,
        ::Microsoft::Console::Types::IUiaEventDispatcher,
        ::Microsoft::Console::Types::IControlAccessibilityInfo
    {
    public:
        TermControlAutomationPeer(Microsoft::Terminal::TerminalControl::implementation::TermControl* owner);

#pragma region FrameworkElementAutomationPeer
        hstring GetClassNameCore() const;
        Windows::UI::Xaml::Automation::Peers::AutomationControlType GetAutomationControlTypeCore() const;
        hstring GetLocalizedControlTypeCore() const;
        Windows::Foundation::IInspectable GetPatternCore(Windows::UI::Xaml::Automation::Peers::PatternInterface patternInterface) const;
        Windows::UI::Xaml::Automation::Peers::AutomationOrientation GetOrientationCore() const;
        hstring GetNameCore() const;
        hstring GetHelpTextCore() const;
        Windows::UI::Xaml::Automation::Peers::AutomationLiveSetting GetLiveSettingCore() const;
#pragma endregion

#pragma region IUiaEventDispatcher
        void SignalSelectionChanged() override;
        void SignalTextChanged() override;
        void SignalCursorChanged() override;
#pragma endregion

#pragma region ITextProvider Pattern
        Windows::UI::Xaml::Automation::Provider::ITextRangeProvider RangeFromPoint(Windows::Foundation::Point screenLocation);
        Windows::UI::Xaml::Automation::Provider::ITextRangeProvider RangeFromChild(Windows::UI::Xaml::Automation::Provider::IRawElementProviderSimple childElement);
        com_array<Windows::UI::Xaml::Automation::Provider::ITextRangeProvider> GetVisibleRanges();
        com_array<Windows::UI::Xaml::Automation::Provider::ITextRangeProvider> GetSelection();
        Windows::UI::Xaml::Automation::SupportedTextSelection SupportedTextSelection();
        Windows::UI::Xaml::Automation::Provider::ITextRangeProvider DocumentRange();
#pragma endregion

#pragma region IControlAccessibilityInfo Pattern
        // Inherited via IControlAccessibilityInfo
        virtual COORD GetFontSize() const override;
        virtual RECT GetBounds() const override;
        virtual RECT GetPadding() const override;
        virtual double GetScaleFactor() const override;
        virtual void ChangeViewport(SMALL_RECT NewWindow) override;
        virtual HRESULT GetHostUiaProvider(IRawElementProviderSimple** provider) override;
#pragma endregion

        RECT GetBoundingRectWrapped();

    private:
        ::Microsoft::WRL::ComPtr<::Microsoft::Terminal::TermControlUiaProvider> _uiaProvider;
        winrt::Microsoft::Terminal::TerminalControl::implementation::TermControl* _termControl;
        winrt::com_array<Windows::UI::Xaml::Automation::Provider::ITextRangeProvider> WrapArrayOfTextRangeProviders(SAFEARRAY* textRanges);
    };
}