/**

 * FreeRDP: A Remote Desktop Protocol Implementation

 *

 * Copyright 2013-2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <winpr/crt.h>

#include <freerdp/log.h>

#include <winpr/tchar.h>

#include <winpr/print.h>

#include "wf_rail.h"

#define TAG CLIENT_TAG("windows")

#define GET_X_LPARAM(lParam) ((UINT16) (lParam & 0xFFFF))

#define GET_Y_LPARAM(lParam) ((UINT16) ((lParam >> 16) & 0xFFFF))

/* RemoteApp Core Protocol Extension */

struct _WINDOW_STYLE

{

	UINT32 style;

	const char* name;

	BOOL multi;

};

typedef struct _WINDOW_STYLE WINDOW_STYLE;

static const WINDOW_STYLE WINDOW_STYLES[] =

{

	{ WS_BORDER, "WS_BORDER", FALSE },

	{ WS_CAPTION, "WS_CAPTION", FALSE },

	{ WS_CHILD, "WS_CHILD", FALSE },

	{ WS_CLIPCHILDREN, "WS_CLIPCHILDREN", FALSE },

	{ WS_CLIPSIBLINGS, "WS_CLIPSIBLINGS", FALSE },

	{ WS_DISABLED, "WS_DISABLED", FALSE },

	{ WS_DLGFRAME, "WS_DLGFRAME", FALSE },

	{ WS_GROUP, "WS_GROUP", FALSE },

	{ WS_HSCROLL, "WS_HSCROLL", FALSE },

	{ WS_ICONIC, "WS_ICONIC", FALSE },

	{ WS_MAXIMIZE, "WS_MAXIMIZE", FALSE },

	{ WS_MAXIMIZEBOX, "WS_MAXIMIZEBOX", FALSE },

	{ WS_MINIMIZE, "WS_MINIMIZE", FALSE },

	{ WS_MINIMIZEBOX, "WS_MINIMIZEBOX", FALSE },

	{ WS_OVERLAPPED, "WS_OVERLAPPED", FALSE },

	{ WS_OVERLAPPEDWINDOW, "WS_OVERLAPPEDWINDOW", TRUE },

	{ WS_POPUP, "WS_POPUP", FALSE },

	{ WS_POPUPWINDOW, "WS_POPUPWINDOW", TRUE },

	{ WS_SIZEBOX, "WS_SIZEBOX", FALSE },

	{ WS_SYSMENU, "WS_SYSMENU", FALSE },

	{ WS_TABSTOP, "WS_TABSTOP", FALSE },

	{ WS_THICKFRAME, "WS_THICKFRAME", FALSE },

	{ WS_VISIBLE, "WS_VISIBLE", FALSE }

};

static const WINDOW_STYLE EXTENDED_WINDOW_STYLES[] =

{

	{ WS_EX_ACCEPTFILES, "WS_EX_ACCEPTFILES", FALSE },

	{ WS_EX_APPWINDOW, "WS_EX_APPWINDOW", FALSE },

	{ WS_EX_CLIENTEDGE, "WS_EX_CLIENTEDGE", FALSE },

	{ WS_EX_COMPOSITED, "WS_EX_COMPOSITED", FALSE },

	{ WS_EX_CONTEXTHELP, "WS_EX_CONTEXTHELP", FALSE },

	{ WS_EX_CONTROLPARENT, "WS_EX_CONTROLPARENT", FALSE },

	{ WS_EX_DLGMODALFRAME, "WS_EX_DLGMODALFRAME", FALSE },

	{ WS_EX_LAYERED, "WS_EX_LAYERED", FALSE },

	{ WS_EX_LAYOUTRTL, "WS_EX_LAYOUTRTL", FALSE },

	{ WS_EX_LEFT, "WS_EX_LEFT", FALSE },

	{ WS_EX_LEFTSCROLLBAR, "WS_EX_LEFTSCROLLBAR", FALSE },

	{ WS_EX_LTRREADING, "WS_EX_LTRREADING", FALSE },

	{ WS_EX_MDICHILD, "WS_EX_MDICHILD", FALSE },

	{ WS_EX_NOACTIVATE, "WS_EX_NOACTIVATE", FALSE },

	{ WS_EX_NOINHERITLAYOUT, "WS_EX_NOINHERITLAYOUT", FALSE },

	{ WS_EX_NOPARENTNOTIFY, "WS_EX_NOPARENTNOTIFY", FALSE },

	{ WS_EX_OVERLAPPEDWINDOW, "WS_EX_OVERLAPPEDWINDOW", TRUE },

	{ WS_EX_PALETTEWINDOW, "WS_EX_PALETTEWINDOW", TRUE },

	{ WS_EX_RIGHT, "WS_EX_RIGHT", FALSE },

	{ WS_EX_RIGHTSCROLLBAR, "WS_EX_RIGHTSCROLLBAR", FALSE },

	{ WS_EX_RTLREADING, "WS_EX_RTLREADING", FALSE },

	{ WS_EX_STATICEDGE, "WS_EX_STATICEDGE", FALSE },

	{ WS_EX_TOOLWINDOW, "WS_EX_TOOLWINDOW", FALSE },

	{ WS_EX_TOPMOST, "WS_EX_TOPMOST", FALSE },

	{ WS_EX_TRANSPARENT, "WS_EX_TRANSPARENT", FALSE },

	{ WS_EX_WINDOWEDGE, "WS_EX_WINDOWEDGE", FALSE }

};

void PrintWindowStyles(UINT32 style)

{

	int i;

	WLog_INFO(TAG, "\tWindow Styles:\t{");

	for (i = 0; i < ARRAYSIZE(WINDOW_STYLES); i++)

	{

		if (style & WINDOW_STYLES[i].style)

		{

			if (WINDOW_STYLES[i].multi)

			{

				if ((style & WINDOW_STYLES[i].style) != WINDOW_STYLES[i].style)

					continue;

			}

			WLog_INFO(TAG, "\t\t%s", WINDOW_STYLES[i].name);

		}

	}

}

void PrintExtendedWindowStyles(UINT32 style)

{

	int i;

	WLog_INFO(TAG, "\tExtended Window Styles:\t{");

	for (i = 0; i < ARRAYSIZE(EXTENDED_WINDOW_STYLES); i++)

	{

		if (style & EXTENDED_WINDOW_STYLES[i].style)

		{

			if (EXTENDED_WINDOW_STYLES[i].multi)

			{

				if ((style & EXTENDED_WINDOW_STYLES[i].style) !=

				    EXTENDED_WINDOW_STYLES[i].style)

					continue;

			}

			WLog_INFO(TAG, "\t\t%s", EXTENDED_WINDOW_STYLES[i].name);

		}

	}

}

void PrintRailWindowState(WINDOW_ORDER_INFO* orderInfo,

                          WINDOW_STATE_ORDER* windowState)

{

	if (orderInfo->fieldFlags & WINDOW_ORDER_STATE_NEW)

		WLog_INFO(TAG, "WindowCreate: WindowId: 0x%08X", orderInfo->windowId);

	else

		WLog_INFO(TAG, "WindowUpdate: WindowId: 0x%08X", orderInfo->windowId);

	WLog_INFO(TAG, "{");

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_OWNER)

	{

		WLog_INFO(TAG, "\tOwnerWindowId: 0x%08X", windowState->ownerWindowId);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_STYLE)

	{

		WLog_INFO(TAG, "\tStyle: 0x%08X ExtendedStyle: 0x%08X",

		          windowState->style, windowState->extendedStyle);

		PrintWindowStyles(windowState->style);

		PrintExtendedWindowStyles(windowState->extendedStyle);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_SHOW)

	{

		WLog_INFO(TAG, "\tShowState: %u", windowState->showState);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_TITLE)

	{

		char* title = NULL;

		ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,

		                   windowState->titleInfo.length / 2, &title, 0, NULL, NULL);

		WLog_INFO(TAG, "\tTitleInfo: %s (length = %hu)", title,

		          windowState->titleInfo.length);

		free(title);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_OFFSET)

	{

		WLog_INFO(TAG, "\tClientOffsetX: %d ClientOffsetY: %d",

		          windowState->clientOffsetX, windowState->clientOffsetY);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_SIZE)

	{

		WLog_INFO(TAG, "\tClientAreaWidth: %u ClientAreaHeight: %u",

		          windowState->clientAreaWidth, windowState->clientAreaHeight);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_RP_CONTENT)

	{

		WLog_INFO(TAG, "\tRPContent: %u", windowState->RPContent);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_ROOT_PARENT)

	{

		WLog_INFO(TAG, "\tRootParentHandle: 0x%08X", windowState->rootParentHandle);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_OFFSET)

	{

		WLog_INFO(TAG, "\tWindowOffsetX: %d WindowOffsetY: %d",

		          windowState->windowOffsetX, windowState->windowOffsetY);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_CLIENT_DELTA)

	{

		WLog_INFO(TAG, "\tWindowClientDeltaX: %d WindowClientDeltaY: %d",

		          windowState->windowClientDeltaX, windowState->windowClientDeltaY);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_SIZE)

	{

		WLog_INFO(TAG, "\tWindowWidth: %u WindowHeight: %u",

		          windowState->windowWidth, windowState->windowHeight);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_WND_RECTS)

	{

		UINT32 index;

		RECTANGLE_16* rect;

		WLog_INFO(TAG, "\tnumWindowRects: %u", windowState->numWindowRects);

		for (index = 0; index < windowState->numWindowRects; index++)

		{

			rect = &windowState->windowRects[index];

			WLog_INFO(TAG, "\twindowRect[%u]: left: %hu top: %hu right: %hu bottom: %hu",

			          index, rect->left, rect->top, rect->right, rect->bottom);

		}

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_VIS_OFFSET)

	{

		WLog_INFO(TAG, "\tvisibileOffsetX: %d visibleOffsetY: %d",

		          windowState->visibleOffsetX, windowState->visibleOffsetY);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_VISIBILITY)

	{

		UINT32 index;

		RECTANGLE_16* rect;

		WLog_INFO(TAG, "\tnumVisibilityRects: %u", windowState->numVisibilityRects);

		for (index = 0; index < windowState->numVisibilityRects; index++)

		{

			rect = &windowState->visibilityRects[index];

			WLog_INFO(TAG, "\tvisibilityRect[%u]: left: %hu top: %hu right: %hu bottom: %hu",

			          index, rect->left, rect->top, rect->right, rect->bottom);

		}

	}

	WLog_INFO(TAG, "}");

}

static void PrintRailIconInfo(WINDOW_ORDER_INFO* orderInfo, ICON_INFO* iconInfo)

{

	WLog_INFO(TAG, "ICON_INFO");

	WLog_INFO(TAG, "{");

	WLog_INFO(TAG, "\tbigIcon: %s",

	          (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_ICON_BIG) ? "true" : "false");

	WLog_INFO(TAG, "\tcacheEntry; 0x%08X", iconInfo->cacheEntry);

	WLog_INFO(TAG, "\tcacheId: 0x%08X", iconInfo->cacheId);

	WLog_INFO(TAG, "\tbpp: %u", iconInfo->bpp);

	WLog_INFO(TAG, "\twidth: %u", iconInfo->width);

	WLog_INFO(TAG, "\theight: %u", iconInfo->height);

	WLog_INFO(TAG, "\tcbColorTable: %u", iconInfo->cbColorTable);

	WLog_INFO(TAG, "\tcbBitsMask: %u", iconInfo->cbBitsMask);

	WLog_INFO(TAG, "\tcbBitsColor: %u", iconInfo->cbBitsColor);

	WLog_INFO(TAG, "\tcolorTable: %p", (void*) iconInfo->colorTable);

	WLog_INFO(TAG, "\tbitsMask: %p", (void*) iconInfo->bitsMask);

	WLog_INFO(TAG, "\tbitsColor: %p", (void*) iconInfo->bitsColor);

	WLog_INFO(TAG, "}");

}

LRESULT CALLBACK wf_RailWndProc(HWND hWnd, UINT msg, WPARAM wParam,

                                LPARAM lParam)

{

	HDC hDC;

	int x, y;

	int width;

	int height;

	UINT32 xPos;

	UINT32 yPos;

	PAINTSTRUCT ps;

	UINT32 inputFlags;

	wfContext* wfc = NULL;

	rdpInput* input = NULL;

	rdpContext* context = NULL;

	wfRailWindow* railWindow;

	railWindow = (wfRailWindow*) GetWindowLongPtr(hWnd, GWLP_USERDATA);

	if (railWindow)

		wfc = railWindow->wfc;

	if (wfc)

		context = (rdpContext*) wfc;

	if (context)

		input = context->input;

	switch (msg)

	{

		case WM_PAINT:

			{

				if (!wfc)

					return 0;

				hDC = BeginPaint(hWnd, &ps);

				x = ps.rcPaint.left;

				y = ps.rcPaint.top;

				width = ps.rcPaint.right - ps.rcPaint.left + 1;

				height = ps.rcPaint.bottom - ps.rcPaint.top + 1;

				BitBlt(hDC, x, y, width, height, wfc->primary->hdc,

				       railWindow->x + x, railWindow->y + y, SRCCOPY);

				EndPaint(hWnd, &ps);

			}

			break;

		case WM_LBUTTONDOWN:

			{

				if (!railWindow || !input)

					return 0;

				xPos = GET_X_LPARAM(lParam) + railWindow->x;

				yPos = GET_Y_LPARAM(lParam) + railWindow->y;

				inputFlags = PTR_FLAGS_DOWN | PTR_FLAGS_BUTTON1;

				if (input)

					input->MouseEvent(input, inputFlags, xPos, yPos);

			}

			break;

		case WM_LBUTTONUP:

			{

				if (!railWindow || !input)

					return 0;

				xPos = GET_X_LPARAM(lParam) + railWindow->x;

				yPos = GET_Y_LPARAM(lParam) + railWindow->y;

				inputFlags = PTR_FLAGS_BUTTON1;

				if (input)

					input->MouseEvent(input, inputFlags, xPos, yPos);

			}

			break;

		case WM_RBUTTONDOWN:

			{

				if (!railWindow || !input)

					return 0;

				xPos = GET_X_LPARAM(lParam) + railWindow->x;

				yPos = GET_Y_LPARAM(lParam) + railWindow->y;

				inputFlags = PTR_FLAGS_DOWN | PTR_FLAGS_BUTTON2;

				if (input)

					input->MouseEvent(input, inputFlags, xPos, yPos);

			}

			break;

		case WM_RBUTTONUP:

			{

				if (!railWindow || !input)

					return 0;

				xPos = GET_X_LPARAM(lParam) + railWindow->x;

				yPos = GET_Y_LPARAM(lParam) + railWindow->y;

				inputFlags = PTR_FLAGS_BUTTON2;

				if (input)

					input->MouseEvent(input, inputFlags, xPos, yPos);

			}

			break;

		case WM_MOUSEMOVE:

			{

				if (!railWindow || !input)

					return 0;

				xPos = GET_X_LPARAM(lParam) + railWindow->x;

				yPos = GET_Y_LPARAM(lParam) + railWindow->y;

				inputFlags = PTR_FLAGS_MOVE;

				if (input)

					input->MouseEvent(input, inputFlags, xPos, yPos);

			}

			break;

		case WM_MOUSEWHEEL:

			break;

		case WM_CLOSE:

			DestroyWindow(hWnd);

			break;

		case WM_DESTROY:

			PostQuitMessage(0);

			break;

		default:

			return DefWindowProc(hWnd, msg, wParam, lParam);

	}

	return 0;

}

#define RAIL_DISABLED_WINDOW_STYLES (WS_BORDER | WS_THICKFRAME | WS_DLGFRAME | WS_CAPTION | \

                                     WS_OVERLAPPED | WS_VSCROLL | WS_HSCROLL | WS_SYSMENU | WS_MINIMIZEBOX | WS_MAXIMIZEBOX)

#define RAIL_DISABLED_EXTENDED_WINDOW_STYLES (WS_EX_DLGMODALFRAME | WS_EX_CLIENTEDGE | WS_EX_STATICEDGE | WS_EX_WINDOWEDGE)

static BOOL wf_rail_window_common(rdpContext* context,

                                  WINDOW_ORDER_INFO* orderInfo, WINDOW_STATE_ORDER* windowState)

{

	wfRailWindow* railWindow = NULL;

	wfContext* wfc = (wfContext*) context;

	RailClientContext* rail = wfc->rail;

	UINT32 fieldFlags = orderInfo->fieldFlags;

	PrintRailWindowState(orderInfo, windowState);

	if (fieldFlags & WINDOW_ORDER_STATE_NEW)

	{

		HANDLE hInstance;

		WCHAR* titleW = NULL;

		WNDCLASSEX wndClassEx;

		railWindow = (wfRailWindow*) calloc(1, sizeof(wfRailWindow));

		if (!railWindow)

			return FALSE;

		railWindow->wfc = wfc;

		railWindow->dwStyle = windowState->style;

		railWindow->dwStyle &= ~RAIL_DISABLED_WINDOW_STYLES;

		railWindow->dwExStyle = windowState->extendedStyle;

		railWindow->dwExStyle &= ~RAIL_DISABLED_EXTENDED_WINDOW_STYLES;

		railWindow->x = windowState->windowOffsetX;

		railWindow->y = windowState->windowOffsetY;

		railWindow->width = windowState->windowWidth;

		railWindow->height = windowState->windowHeight;

		if (fieldFlags & WINDOW_ORDER_FIELD_TITLE)

		{

			char* title = NULL;

			if (windowState->titleInfo.length == 0)

			{

				if (!(title = _strdup("")))

				{

					WLog_ERR(TAG, "failed to duplicate empty window title string");

					/* error handled below */

				}

			}

			else if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,

			                            windowState->titleInfo.length / 2, &title, 0, NULL, NULL) < 1)

			{

				WLog_ERR(TAG, "failed to convert window title");

				/* error handled below */

			}

			railWindow->title = title;

		}

		else

		{

			if (!(railWindow->title = _strdup("RdpRailWindow")))

				WLog_ERR(TAG, "failed to duplicate default window title string");

		}

		if (!railWindow->title)

		{

			free(railWindow);

			return FALSE;

		}

		ConvertToUnicode(CP_UTF8, 0, railWindow->title, -1, &titleW, 0);

		hInstance = GetModuleHandle(NULL);

		ZeroMemory(&wndClassEx, sizeof(WNDCLASSEX));

		wndClassEx.cbSize = sizeof(WNDCLASSEX);

		wndClassEx.style = 0;

		wndClassEx.lpfnWndProc = wf_RailWndProc;

		wndClassEx.cbClsExtra = 0;

		wndClassEx.cbWndExtra = 0;

		wndClassEx.hIcon = NULL;

		wndClassEx.hCursor = NULL;

		wndClassEx.hbrBackground = NULL;

		wndClassEx.lpszMenuName = NULL;

		wndClassEx.lpszClassName = _T("RdpRailWindow");

		wndClassEx.hInstance = hInstance;

		wndClassEx.hIconSm = NULL;

		RegisterClassEx(&wndClassEx);

		railWindow->hWnd = CreateWindowExW(

		                       railWindow->dwExStyle, /* dwExStyle */

		                       _T("RdpRailWindow"), /* lpClassName */

		                       titleW, /* lpWindowName */

		                       railWindow->dwStyle, /* dwStyle */

		                       railWindow->x, /* x */

		                       railWindow->y, /* y */

		                       railWindow->width, /* nWidth */

		                       railWindow->height, /* nHeight */

		                       NULL, /* hWndParent */

		                       NULL, /* hMenu */

		                       hInstance, /* hInstance */

		                       NULL /* lpParam */

		                   );

		SetWindowLongPtr(railWindow->hWnd, GWLP_USERDATA, (LONG_PTR) railWindow);

		HashTable_Add(wfc->railWindows, (void*)(UINT_PTR) orderInfo->windowId,

		              (void*) railWindow);

		free(titleW);

		UpdateWindow(railWindow->hWnd);

		return TRUE;

	}

	else

	{

		railWindow = (wfRailWindow*) HashTable_GetItemValue(wfc->railWindows,

		             (void*)(UINT_PTR) orderInfo->windowId);

	}

	if (!railWindow)

		return TRUE;

	if ((fieldFlags & WINDOW_ORDER_FIELD_WND_OFFSET) ||

	    (fieldFlags & WINDOW_ORDER_FIELD_WND_SIZE))

	{

		if (fieldFlags & WINDOW_ORDER_FIELD_WND_OFFSET)

		{

			railWindow->x = windowState->windowOffsetX;

			railWindow->y = windowState->windowOffsetY;

		}

		if (fieldFlags & WINDOW_ORDER_FIELD_WND_SIZE)

		{

			railWindow->width = windowState->windowWidth;

			railWindow->height = windowState->windowHeight;

		}

		SetWindowPos(railWindow->hWnd, NULL,

		             railWindow->x,

		             railWindow->y,

		             railWindow->width,

		             railWindow->height,

		             0);

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_OWNER)

	{

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_STYLE)

	{

		railWindow->dwStyle = windowState->style;

		railWindow->dwStyle &= ~RAIL_DISABLED_WINDOW_STYLES;

		railWindow->dwExStyle = windowState->extendedStyle;

		railWindow->dwExStyle &= ~RAIL_DISABLED_EXTENDED_WINDOW_STYLES;

		SetWindowLongPtr(railWindow->hWnd, GWL_STYLE, (LONG) railWindow->dwStyle);

		SetWindowLongPtr(railWindow->hWnd, GWL_EXSTYLE, (LONG) railWindow->dwExStyle);

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_SHOW)

	{

		ShowWindow(railWindow->hWnd, windowState->showState);

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_TITLE)

	{

		char* title = NULL;

		WCHAR* titleW = NULL;

		if (windowState->titleInfo.length == 0)

		{

			if (!(title = _strdup("")))

			{

				WLog_ERR(TAG, "failed to duplicate empty window title string");

				return FALSE;

			}

		}

		else if (ConvertFromUnicode(CP_UTF8, 0, (WCHAR*) windowState->titleInfo.string,

		                            windowState->titleInfo.length / 2, &title, 0, NULL, NULL) < 1)

		{

			WLog_ERR(TAG, "failed to convert window title");

			return FALSE;

		}

		free(railWindow->title);

		railWindow->title = title;

		ConvertToUnicode(CP_UTF8, 0, railWindow->title, -1, &titleW, 0);

		SetWindowTextW(railWindow->hWnd, titleW);

		free(titleW);

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_OFFSET)

	{

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_CLIENT_AREA_SIZE)

	{

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_WND_CLIENT_DELTA)

	{

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_RP_CONTENT)

	{

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_ROOT_PARENT)

	{

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_WND_RECTS)

	{

		UINT32 index;

		HRGN hWndRect;

		HRGN hWndRects;

		RECTANGLE_16* rect;

		if (windowState->numWindowRects > 0)

		{

			rect = &(windowState->windowRects[0]);

			hWndRects = CreateRectRgn(rect->left, rect->top, rect->right, rect->bottom);

			for (index = 1; index < windowState->numWindowRects; index++)

			{

				rect = &(windowState->windowRects[index]);

				hWndRect = CreateRectRgn(rect->left, rect->top, rect->right, rect->bottom);

				CombineRgn(hWndRects, hWndRects, hWndRect, RGN_OR);

				DeleteObject(hWndRect);

			}

			SetWindowRgn(railWindow->hWnd, hWndRects, TRUE);

			DeleteObject(hWndRects);

		}

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_VIS_OFFSET)

	{

	}

	if (fieldFlags & WINDOW_ORDER_FIELD_VISIBILITY)

	{

	}

	UpdateWindow(railWindow->hWnd);

	return TRUE;

}

static BOOL wf_rail_window_delete(rdpContext* context,

                                  WINDOW_ORDER_INFO* orderInfo)

{

	wfRailWindow* railWindow = NULL;

	wfContext* wfc = (wfContext*) context;

	RailClientContext* rail = wfc->rail;

	WLog_DBG(TAG, "RailWindowDelete");

	railWindow = (wfRailWindow*) HashTable_GetItemValue(wfc->railWindows,

	             (void*)(UINT_PTR) orderInfo->windowId);

	if (!railWindow)

		return TRUE;

	HashTable_Remove(wfc->railWindows, (void*)(UINT_PTR) orderInfo->windowId);

	DestroyWindow(railWindow->hWnd);

	free(railWindow);

	return TRUE;

}

static BOOL wf_rail_window_icon(rdpContext* context,

                                WINDOW_ORDER_INFO* orderInfo, WINDOW_ICON_ORDER* windowIcon)

{

	HDC hDC;

	int bpp;

	int width;

	int height;

	HICON hIcon;

	BOOL bigIcon;

	ICONINFO iconInfo;

	BITMAPINFO bitmapInfo;

	wfRailWindow* railWindow;

	BITMAPINFOHEADER* bitmapInfoHeader;

	wfContext* wfc = (wfContext*) context;

	RailClientContext* rail = wfc->rail;

	WLog_DBG(TAG, "RailWindowIcon");

	PrintRailIconInfo(orderInfo, windowIcon->iconInfo);

	railWindow = (wfRailWindow*) HashTable_GetItemValue(wfc->railWindows,

	             (void*)(UINT_PTR) orderInfo->windowId);

	if (!railWindow)

		return TRUE;

	bigIcon = (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_ICON_BIG) ? TRUE : FALSE;

	hDC = GetDC(railWindow->hWnd);

	iconInfo.fIcon = TRUE;

	iconInfo.xHotspot = 0;

	iconInfo.yHotspot = 0;

	ZeroMemory(&bitmapInfo, sizeof(BITMAPINFO));

	bitmapInfoHeader = &(bitmapInfo.bmiHeader);

	bpp = windowIcon->iconInfo->bpp;

	width = windowIcon->iconInfo->width;

	height = windowIcon->iconInfo->height;

	bitmapInfoHeader->biSize = sizeof(BITMAPINFOHEADER);

	bitmapInfoHeader->biWidth = width;

	bitmapInfoHeader->biHeight = height;

	bitmapInfoHeader->biPlanes = 1;

	bitmapInfoHeader->biBitCount = bpp;

	bitmapInfoHeader->biCompression = 0;

	bitmapInfoHeader->biSizeImage = height * width * ((bpp + 7) / 8);

	bitmapInfoHeader->biXPelsPerMeter = width;

	bitmapInfoHeader->biYPelsPerMeter = height;

	bitmapInfoHeader->biClrUsed = 0;

	bitmapInfoHeader->biClrImportant = 0;

	iconInfo.hbmMask = CreateDIBitmap(hDC,

	                                  bitmapInfoHeader, CBM_INIT,

	                                  windowIcon->iconInfo->bitsMask,

	                                  &bitmapInfo, DIB_RGB_COLORS);

	iconInfo.hbmColor = CreateDIBitmap(hDC,

	                                   bitmapInfoHeader, CBM_INIT,

	                                   windowIcon->iconInfo->bitsColor,

	                                   &bitmapInfo, DIB_RGB_COLORS);

	hIcon = CreateIconIndirect(&iconInfo);

	if (hIcon)

	{

		WPARAM wParam;

		LPARAM lParam;

		wParam = (WPARAM) bigIcon ? ICON_BIG : ICON_SMALL;

		lParam = (LPARAM) hIcon;

		SendMessage(railWindow->hWnd, WM_SETICON, wParam, lParam);

	}

	ReleaseDC(NULL, hDC);

	if (windowIcon->iconInfo->cacheEntry != 0xFFFF)

	{

		/* icon should be cached */

	}

	return TRUE;

}

static BOOL wf_rail_window_cached_icon(rdpContext* context,

                                       WINDOW_ORDER_INFO* orderInfo, WINDOW_CACHED_ICON_ORDER* windowCachedIcon)

{

	WLog_DBG(TAG, "RailWindowCachedIcon");

	return TRUE;

}

static void wf_rail_notify_icon_common(rdpContext* context,

                                       WINDOW_ORDER_INFO* orderInfo, NOTIFY_ICON_STATE_ORDER* notifyIconState)

{

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_VERSION)

	{

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_TIP)

	{

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_INFO_TIP)

	{

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_FIELD_NOTIFY_STATE)

	{

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_ICON)

	{

		ICON_INFO* iconInfo = &(notifyIconState->icon);

		PrintRailIconInfo(orderInfo, iconInfo);

	}

	if (orderInfo->fieldFlags & WINDOW_ORDER_CACHED_ICON)

	{

	}

}

static BOOL wf_rail_notify_icon_create(rdpContext* context,

                                       WINDOW_ORDER_INFO* orderInfo, NOTIFY_ICON_STATE_ORDER* notifyIconState)

{

	wfContext* wfc = (wfContext*) context;

	RailClientContext* rail = wfc->rail;

	WLog_DBG(TAG, "RailNotifyIconCreate");

	wf_rail_notify_icon_common(context, orderInfo, notifyIconState);

	return TRUE;

}

static BOOL wf_rail_notify_icon_update(rdpContext* context,

                                       WINDOW_ORDER_INFO* orderInfo, NOTIFY_ICON_STATE_ORDER* notifyIconState)

{

	wfContext* wfc = (wfContext*) context;

	RailClientContext* rail = wfc->rail;

	WLog_DBG(TAG, "RailNotifyIconUpdate");

	wf_rail_notify_icon_common(context, orderInfo, notifyIconState);

	return TRUE;

}

static BOOL wf_rail_notify_icon_delete(rdpContext* context,

                                       WINDOW_ORDER_INFO* orderInfo)

{

	wfContext* wfc = (wfContext*) context;

	RailClientContext* rail = wfc->rail;

	WLog_DBG(TAG, "RailNotifyIconDelete");

	return TRUE;

}

static BOOL wf_rail_monitored_desktop(rdpContext* context,

                                      WINDOW_ORDER_INFO* orderInfo, MONITORED_DESKTOP_ORDER* monitoredDesktop)

{

	wfContext* wfc = (wfContext*) context;

	RailClientContext* rail = wfc->rail;

	WLog_DBG(TAG, "RailMonitorDesktop");

	return TRUE;

}

static BOOL wf_rail_non_monitored_desktop(rdpContext* context,

        WINDOW_ORDER_INFO* orderInfo)

{

	wfContext* wfc = (wfContext*) context;

	RailClientContext* rail = wfc->rail;

	WLog_DBG(TAG, "RailNonMonitorDesktop");

	return TRUE;

}

void wf_rail_register_update_callbacks(rdpUpdate* update)

{

	rdpWindowUpdate* window = update->window;

	window->WindowCreate = wf_rail_window_common;

	window->WindowUpdate = wf_rail_window_common;

	window->WindowDelete = wf_rail_window_delete;

	window->WindowIcon = wf_rail_window_icon;

	window->WindowCachedIcon = wf_rail_window_cached_icon;

	window->NotifyIconCreate = wf_rail_notify_icon_create;

	window->NotifyIconUpdate = wf_rail_notify_icon_update;

	window->NotifyIconDelete = wf_rail_notify_icon_delete;

	window->MonitoredDesktop = wf_rail_monitored_desktop;

	window->NonMonitoredDesktop = wf_rail_non_monitored_desktop;

}

/* RemoteApp Virtual Channel Extension */

/**

 * Function description

 *

 * @return 0 on success, otherwise a Win32 error code

 */

static UINT wf_rail_server_execute_result(RailClientContext* context,

        RAIL_EXEC_RESULT_ORDER* execResult)

{

	WLog_DBG(TAG, "RailServerExecuteResult: 0x%08X", execResult->rawResult);

	return CHANNEL_RC_OK;

}

/**

 * Function description

 *

 * @return 0 on success, otherwise a Win32 error code

 */

static UINT wf_rail_server_system_param(RailClientContext* context,

                                        RAIL_SYSPARAM_ORDER* sysparam)

{

	return CHANNEL_RC_OK;

}

/**

 * Function description

 *

 * @return 0 on success, otherwise a Win32 error code

 */

static UINT wf_rail_server_handshake(RailClientContext* context,

                                     RAIL_HANDSHAKE_ORDER* handshake)

{

	RAIL_EXEC_ORDER exec;

	RAIL_SYSPARAM_ORDER sysparam;

	RAIL_HANDSHAKE_ORDER clientHandshake;

	RAIL_CLIENT_STATUS_ORDER clientStatus;

	wfContext* wfc = (wfContext*) context->custom;

	rdpSettings* settings = wfc->context.settings;

	clientHandshake.buildNumber = 0x00001DB0;

	context->ClientHandshake(context, &clientHandshake);

	ZeroMemory(&clientStatus, sizeof(RAIL_CLIENT_STATUS_ORDER));