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path: root/Source/Core/InputCommon/Src/ControllerInterface/OSX/OSXKeyboard.mm
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#include <Foundation/Foundation.h>
#include <IOKit/hid/IOHIDLib.h>

#include "../ControllerInterface.h"
#include "OSXKeyboard.h"

namespace ciface
{
namespace OSX
{

Keyboard::Keyboard(IOHIDDeviceRef device, std::string name, int index)
	: m_device(device)
	, m_device_name(name)
	, m_index(index)
{
	// This class should only recieve Keyboard or Keypad devices
	// Now, filter on just the buttons we can handle sanely
	NSDictionary *matchingElements =
	 [NSDictionary dictionaryWithObjectsAndKeys:
	  [NSNumber numberWithInteger: kIOHIDElementTypeInput_Button],
		@kIOHIDElementTypeKey,
	  [NSNumber numberWithInteger: 0], @kIOHIDElementMinKey,
	  [NSNumber numberWithInteger: 1], @kIOHIDElementMaxKey,
	  nil];

	CFArrayRef elements = IOHIDDeviceCopyMatchingElements(m_device,
		(CFDictionaryRef)matchingElements, kIOHIDOptionsTypeNone);

	if (elements)
	{
		for (int i = 0; i < CFArrayGetCount(elements); i++)
		{
			IOHIDElementRef e =
			(IOHIDElementRef)CFArrayGetValueAtIndex(elements, i);
			//DeviceElementDebugPrint(e, NULL);

			AddInput(new Key(e, m_device));
		}
		CFRelease(elements);
	}
}

bool Keyboard::UpdateInput()
{
	return true;
}

bool Keyboard::UpdateOutput()
{
	return true;
}

std::string Keyboard::GetName() const
{
	return m_device_name;
}

std::string Keyboard::GetSource() const
{
	return "Keyboard";
}

int Keyboard::GetId() const
{
	return m_index;
}

Keyboard::Key::Key(IOHIDElementRef element, IOHIDDeviceRef device)
	: m_element(element)
	, m_device(device)
{
	static const struct PrettyKeys {
		const uint32_t		code;
		const char *const	name;
	} named_keys[] = {
		{ kHIDUsage_KeyboardA, "A" },
		{ kHIDUsage_KeyboardB, "B" },
		{ kHIDUsage_KeyboardC, "C" },
		{ kHIDUsage_KeyboardD, "D" },
		{ kHIDUsage_KeyboardE, "E" },
		{ kHIDUsage_KeyboardF, "F" },
		{ kHIDUsage_KeyboardG, "G" },
		{ kHIDUsage_KeyboardH, "H" },
		{ kHIDUsage_KeyboardI, "I" },
		{ kHIDUsage_KeyboardJ, "J" },
		{ kHIDUsage_KeyboardK, "K" },
		{ kHIDUsage_KeyboardL, "L" },
		{ kHIDUsage_KeyboardM, "M" },
		{ kHIDUsage_KeyboardN, "N" },
		{ kHIDUsage_KeyboardO, "O" },
		{ kHIDUsage_KeyboardP, "P" },
		{ kHIDUsage_KeyboardQ, "Q" },
		{ kHIDUsage_KeyboardR, "R" },
		{ kHIDUsage_KeyboardS, "S" },
		{ kHIDUsage_KeyboardT, "T" },
		{ kHIDUsage_KeyboardU, "U" },
		{ kHIDUsage_KeyboardV, "V" },
		{ kHIDUsage_KeyboardW, "W" },
		{ kHIDUsage_KeyboardX, "X" },
		{ kHIDUsage_KeyboardY, "Y" },
		{ kHIDUsage_KeyboardZ, "Z" },
		{ kHIDUsage_Keyboard1, "1" },
		{ kHIDUsage_Keyboard2, "2" },
		{ kHIDUsage_Keyboard3, "3" },
		{ kHIDUsage_Keyboard4, "4" },
		{ kHIDUsage_Keyboard5, "5" },
		{ kHIDUsage_Keyboard6, "6" },
		{ kHIDUsage_Keyboard7, "7" },
		{ kHIDUsage_Keyboard8, "8" },
		{ kHIDUsage_Keyboard9, "9" },
		{ kHIDUsage_Keyboard0, "0" },
		{ kHIDUsage_KeyboardReturnOrEnter, "Return" },
		{ kHIDUsage_KeyboardEscape, "Escape" },
		{ kHIDUsage_KeyboardDeleteOrBackspace, "Backspace" },
		{ kHIDUsage_KeyboardTab, "Tab" },
		{ kHIDUsage_KeyboardSpacebar, "Space" },
		{ kHIDUsage_KeyboardHyphen, "-" },
		{ kHIDUsage_KeyboardEqualSign, "=" },
		{ kHIDUsage_KeyboardOpenBracket, "[" },
		{ kHIDUsage_KeyboardCloseBracket, "]" },
		{ kHIDUsage_KeyboardBackslash, "\\" },
		{ kHIDUsage_KeyboardSemicolon, ";" },
		{ kHIDUsage_KeyboardQuote, "'" },
		{ kHIDUsage_KeyboardGraveAccentAndTilde, "Tilde" },
		{ kHIDUsage_KeyboardComma, "," },
		{ kHIDUsage_KeyboardPeriod, "." },
		{ kHIDUsage_KeyboardSlash, "/" },
		{ kHIDUsage_KeyboardCapsLock, "Caps Lock" },
		{ kHIDUsage_KeyboardF1, "F1" },
		{ kHIDUsage_KeyboardF2, "F2" },
		{ kHIDUsage_KeyboardF3, "F3" },
		{ kHIDUsage_KeyboardF4, "F4" },
		{ kHIDUsage_KeyboardF5, "F5" },
		{ kHIDUsage_KeyboardF6, "F6" },
		{ kHIDUsage_KeyboardF7, "F7" },
		{ kHIDUsage_KeyboardF8, "F8" },
		{ kHIDUsage_KeyboardF9, "F9" },
		{ kHIDUsage_KeyboardF10, "F10" },
		{ kHIDUsage_KeyboardF11, "F11" },
		{ kHIDUsage_KeyboardF12, "F12" },
		{ kHIDUsage_KeyboardInsert, "Insert" },
		{ kHIDUsage_KeyboardHome, "Home" },
		{ kHIDUsage_KeyboardPageUp, "Page Up" },
		{ kHIDUsage_KeyboardDeleteForward, "Delete" },
		{ kHIDUsage_KeyboardEnd, "End" },
		{ kHIDUsage_KeyboardPageDown, "Page Down" },
		{ kHIDUsage_KeyboardRightArrow, "Right Arrow" },
		{ kHIDUsage_KeyboardLeftArrow, "Left Arrow" },
		{ kHIDUsage_KeyboardDownArrow, "Down Arrow" },
		{ kHIDUsage_KeyboardUpArrow, "Up Arrow" },
		{ kHIDUsage_KeypadSlash, "Keypad /" },
		{ kHIDUsage_KeypadAsterisk, "Keypad *" },
		{ kHIDUsage_KeypadHyphen, "Keypad -" },
		{ kHIDUsage_KeypadPlus, "Keypad +" },
		{ kHIDUsage_KeypadEnter, "Keypad Enter" },
		{ kHIDUsage_Keypad1, "Keypad 1" },
		{ kHIDUsage_Keypad2, "Keypad 2" },
		{ kHIDUsage_Keypad3, "Keypad 3" },
		{ kHIDUsage_Keypad4, "Keypad 4" },
		{ kHIDUsage_Keypad5, "Keypad 5" },
		{ kHIDUsage_Keypad6, "Keypad 6" },
		{ kHIDUsage_Keypad7, "Keypad 7" },
		{ kHIDUsage_Keypad8, "Keypad 8" },
		{ kHIDUsage_Keypad9, "Keypad 9" },
		{ kHIDUsage_Keypad0, "Keypad 0" },
		{ kHIDUsage_KeypadPeriod, "Keypad ." },
		{ kHIDUsage_KeyboardNonUSBackslash, "Paragraph" },
		{ kHIDUsage_KeypadEqualSign, "Keypad =" },
		{ kHIDUsage_KeypadComma, "Keypad ," },
		{ kHIDUsage_KeyboardLeftControl, "Left Control" },
		{ kHIDUsage_KeyboardLeftShift, "Left Shift" },
		{ kHIDUsage_KeyboardLeftAlt, "Left Alt" },
		{ kHIDUsage_KeyboardLeftGUI, "Left Command" },
		{ kHIDUsage_KeyboardRightControl, "Right Control" },
		{ kHIDUsage_KeyboardRightShift, "Right Shift" },
		{ kHIDUsage_KeyboardRightAlt, "Right Alt" },
		{ kHIDUsage_KeyboardRightGUI, "Right Command" },
		{ 184, "Eject" },
	};
	
	const uint32_t keycode = IOHIDElementGetUsage(m_element);
	for (uint32_t i = 0; i < sizeof named_keys / sizeof *named_keys; i++)
		if (named_keys[i].code == keycode) {
			m_name = named_keys[i].name;
			return;
		}
	
	std::stringstream ss;
	ss << "Key " << keycode;
	m_name = ss.str();
}

ControlState Keyboard::Key::GetState() const
{
	IOHIDValueRef value;

	if (IOHIDDeviceGetValue(m_device, m_element, &value) == kIOReturnSuccess)
		return IOHIDValueGetIntegerValue(value);
	else
		return 0;
}

std::string Keyboard::Key::GetName() const
{
	return m_name;
}

}
}