/**

 * FreeRDP: A Remote Desktop Protocol Implementation

 * X11 Client Interface

 *

 * Copyright 2013 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 "mfreerdp.h"

#include <freerdp/constants.h>

#include <freerdp/utils/signal.h>

#include <freerdp/client/cmdline.h>

/**

 * Client Interface

 */

static BOOL mfreerdp_client_global_init()

{

	freerdp_handle_signals();

	return TRUE;

}

static void mfreerdp_client_global_uninit()

{

}

static int mfreerdp_client_start(rdpContext* context)

{

	MRDPView* view;

	mfContext* mfc = (mfContext*) context;

	if (mfc->view == NULL)

	{

		// view not specified beforehand. Create view dynamically

		mfc->view = [[MRDPView alloc] initWithFrame : NSMakeRect(0, 0,

		                              context->settings->DesktopWidth, context->settings->DesktopHeight)];

		mfc->view_ownership = TRUE;

	}

	view = (MRDPView*) mfc->view;

	return [view rdpStart:context];

}

static int mfreerdp_client_stop(rdpContext* context)

{

	mfContext* mfc = (mfContext*) context;

	if (mfc->thread)

	{

		SetEvent(mfc->stopEvent);

		WaitForSingleObject(mfc->thread, INFINITE);

		CloseHandle(mfc->thread);

		mfc->thread = NULL;

	}

	if (mfc->view_ownership)

	{

		MRDPView* view = (MRDPView*) mfc->view;

		[view releaseResources];

		[view release];

		mfc->view = nil;

	}

	return 0;

}

static BOOL mfreerdp_client_new(freerdp* instance, rdpContext* context)

{

	mfContext* mfc;

	rdpSettings* settings;

	mfc = (mfContext*) instance->context;

	mfc->stopEvent = CreateEvent(NULL, TRUE, FALSE, NULL);

	context->instance->PreConnect = mac_pre_connect;

	context->instance->PostConnect = mac_post_connect;

	context->instance->Authenticate = mac_authenticate;

	settings = instance->settings;

	settings->AsyncUpdate = TRUE;

	settings->AsyncInput = TRUE;

	return TRUE;

}

static void mfreerdp_client_free(freerdp* instance, rdpContext* context)

{

	mfContext* mfc;

	rdpSettings* settings;

	if (!instance || !context)

		return;

	mfc = (mfContext*) instance->context;

	CloseHandle(mfc->stopEvent);

}

static void freerdp_client_mouse_event(rdpContext* cfc, DWORD flags, int x,

                                       int y)

{

	int width, height;

	rdpInput* input = cfc->instance->input;

	rdpSettings* settings = cfc->instance->settings;

	width = settings->DesktopWidth;

	height = settings->DesktopHeight;

	if (x < 0)

		x = 0;

	x = width - 1;

	if (y < 0)

		y = 0;

	if (y >= height)

		y = height - 1;

	freerdp_input_send_mouse_event(input, flags, x, y);

}

void mf_scale_mouse_event(void* context, rdpInput* input, UINT16 flags,

                          UINT16 x, UINT16 y)

{

	mfContext* mfc = (mfContext*) context;

	MRDPView* view = (MRDPView*) mfc->view;

	int ww, wh, dw, dh;

	ww = mfc->client_width;

	wh = mfc->client_height;

	dw = mfc->context.settings->DesktopWidth;

	dh = mfc->context.settings->DesktopHeight;

	// Convert to windows coordinates

	y = [view frame].size.height - y;

	if (!mfc->context.settings->SmartSizing || ((ww == dw) && (wh == dh)))

	{

		y = y + mfc->yCurrentScroll;

		if (wh != dh)

		{

			y -= (dh - wh);

		}

		freerdp_input_send_mouse_event(input, flags, x + mfc->xCurrentScroll, y);

	}

	else

	{

		y = y * dh / wh + mfc->yCurrentScroll;

		freerdp_input_send_mouse_event(input, flags, x * dw / ww + mfc->xCurrentScroll, y);

	}

}

int RdpClientEntry(RDP_CLIENT_ENTRY_POINTS* pEntryPoints)

{

	pEntryPoints->Version = 1;

	pEntryPoints->Size = sizeof(RDP_CLIENT_ENTRY_POINTS_V1);

	pEntryPoints->GlobalInit = mfreerdp_client_global_init;

	pEntryPoints->GlobalUninit = mfreerdp_client_global_uninit;

	pEntryPoints->ContextSize = sizeof(mfContext);

	pEntryPoints->ClientNew = mfreerdp_client_new;

	pEntryPoints->ClientFree = mfreerdp_client_free;

	pEntryPoints->ClientStart = mfreerdp_client_start;

	pEntryPoints->ClientStop = mfreerdp_client_stop;

	return 0;

}