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/*
 * tkWinTest.c --
 *
 *	Contains commands for platform specific tests for the Windows
 *	platform.
 *
 * Copyright (c) 1997 Sun Microsystems, Inc.
 * Copyright (c) 2000 by Scriptics Corporation.
 * Copyright (c) 2001 by ActiveState Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tkWinTest.c,v 1.25 2009/05/13 22:03:39 patthoyts Exp $
 */

#include "tkWinInt.h"

HWND tkWinCurrentDialog;

/*
 * Forward declarations of functions defined later in this file:
 */

static int		TestclipboardObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
static int		TestwineventCmd(ClientData clientData,
			    Tcl_Interp *interp, int argc, const char **argv);
static int		TestfindwindowObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
static int		TestgetwindowinfoObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
static int		TestwinlocaleObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	TkplatformtestInit(Tcl_Interp *interp);
static Tk_GetSelProc		SetSelectionResult;

/*
 *----------------------------------------------------------------------
 *
 * TkplatformtestInit --
 *
 *	Defines commands that test platform specific functionality for Windows
 *	platforms.
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	Defines new commands.
 *
 *----------------------------------------------------------------------
 */

int
TkplatformtestInit(
    Tcl_Interp *interp)		/* Interpreter to add commands to. */
{
    /*
     * Add commands for platform specific tests on MacOS here.
     */

    Tcl_CreateObjCommand(interp, "testclipboard", TestclipboardObjCmd,
	    (ClientData) Tk_MainWindow(interp), NULL);
    Tcl_CreateCommand(interp, "testwinevent", TestwineventCmd,
	    (ClientData) Tk_MainWindow(interp), NULL);
    Tcl_CreateObjCommand(interp, "testfindwindow", TestfindwindowObjCmd,
	    (ClientData) Tk_MainWindow(interp), NULL);
    Tcl_CreateObjCommand(interp, "testgetwindowinfo", TestgetwindowinfoObjCmd,
	    (ClientData) Tk_MainWindow(interp), NULL);
    Tcl_CreateObjCommand(interp, "testwinlocale", TestwinlocaleObjCmd,
	    (ClientData) Tk_MainWindow(interp), NULL);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * AppendSystemError --
 *
 *	This routine formats a Windows system error message and places it into
 *	the interpreter result. Originally from tclWinReg.c.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

static void
AppendSystemError(
    Tcl_Interp *interp,		/* Current interpreter. */
    DWORD error)		/* Result code from error. */
{
    int length;
    WCHAR *wMsgPtr;
    char *msg;
    char id[TCL_INTEGER_SPACE], msgBuf[24 + TCL_INTEGER_SPACE];
    Tcl_DString ds;
    Tcl_Obj *resultPtr = Tcl_GetObjResult(interp);

    length = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM
	    | FORMAT_MESSAGE_IGNORE_INSERTS
	    | FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, error,
	    MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (WCHAR *) &wMsgPtr,
	    0, NULL);
    if (length == 0) {
	char *msgPtr;

	length = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM 
		| FORMAT_MESSAGE_IGNORE_INSERTS
		| FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, error,
		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (char *) &msgPtr,
		0, NULL);
	if (length > 0) {
	    wMsgPtr = (WCHAR *) LocalAlloc(LPTR, (length + 1) * sizeof(WCHAR));
	    MultiByteToWideChar(CP_ACP, 0, msgPtr, length + 1, wMsgPtr,
		    length + 1);
	    LocalFree(msgPtr);
	}
    }
    if (length == 0) {
	if (error == ERROR_CALL_NOT_IMPLEMENTED) {
	    msg = (char *)"function not supported under Win32s";
	} else {
	    sprintf(msgBuf, "unknown error: %ld", error);
	    msg = msgBuf;
	}
    } else {
	Tcl_Encoding encoding;

	encoding = Tcl_GetEncoding(NULL, "unicode");
	msg = Tcl_ExternalToUtfDString(encoding, (char *) wMsgPtr, -1, &ds);
	Tcl_FreeEncoding(encoding);
	LocalFree(wMsgPtr);

	length = Tcl_DStringLength(&ds);

	/*
	 * Trim the trailing CR/LF from the system message.
	 */

	if (msg[length-1] == '\n') {
	    msg[--length] = 0;
	}
	if (msg[length-1] == '\r') {
	    msg[--length] = 0;
	}
    }

    sprintf(id, "%ld", error);
    Tcl_SetErrorCode(interp, "WINDOWS", id, msg, NULL);
    Tcl_AppendToObj(resultPtr, msg, length);

    if (length != 0) {
	Tcl_DStringFree(&ds);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TestclipboardObjCmd --
 *
 *	This function implements the testclipboard command. It provides a way
 *	to determine the actual contents of the Windows clipboard.
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

static int
SetSelectionResult(
    ClientData dummy,
    Tcl_Interp *interp,
    const char *selection)
{
    Tcl_AppendResult(interp, selection, NULL);
    return TCL_OK;
}

static int
TestclipboardObjCmd(
    ClientData clientData,	/* Main window for application. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument values. */
{
    Tk_Window tkwin = (Tk_Window) clientData;

    if (objc != 1) {
	Tcl_WrongNumArgs(interp, 1, objv, NULL);
	return TCL_ERROR;
    }
    return TkSelGetSelection(interp, tkwin, Tk_InternAtom(tkwin, "CLIPBOARD"),
	    XA_STRING, SetSelectionResult, NULL);
}

/*
 *----------------------------------------------------------------------
 *
 * TestwineventCmd --
 *
 *	This function implements the testwinevent command. It provides a way
 *	to send messages to windows dialogs.
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

static int
TestwineventCmd(
    ClientData clientData,	/* Main window for application. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int argc,			/* Number of arguments. */
    const char **argv)		/* Argument strings. */
{
    HWND hwnd = 0;
    HWND child = 0;
    int id;
    char *rest;
    UINT message;
    WPARAM wParam;
    LPARAM lParam;
    static const TkStateMap messageMap[] = {
	{WM_LBUTTONDOWN,	"WM_LBUTTONDOWN"},
	{WM_LBUTTONUP,		"WM_LBUTTONUP"},
	{WM_CHAR,		"WM_CHAR"},
	{WM_GETTEXT,		"WM_GETTEXT"},
	{WM_SETTEXT,		"WM_SETTEXT"},
	{WM_COMMAND,            "WM_COMMAND"},
	{-1,			NULL}
    };

    if ((argc == 3) && (strcmp(argv[1], "debug") == 0)) {
	int b;

	if (Tcl_GetBoolean(interp, argv[2], &b) != TCL_OK) {
	    return TCL_ERROR;
	}
	TkWinDialogDebug(b);
	return TCL_OK;
    }

    if (argc < 4) {
	return TCL_ERROR;
    }

#if 0
    TkpScanWindowId(interp, argv[1], &id);
    if (
#ifdef _WIN64
	    (sscanf(string, "0x%p", &number) != 1) &&
#endif /* _WIN64 */
	    Tcl_GetInt(interp, string, (int *)&number) != TCL_OK) {
	return TCL_ERROR;
    }
#endif
    hwnd = (HWND) strtol(argv[1], &rest, 0);
    if (rest == argv[1]) {
	hwnd = FindWindow(NULL, argv[1]);
	if (hwnd == NULL) {
	    Tcl_SetResult(interp, "no such window", TCL_STATIC);
	    return TCL_ERROR;
	}
    }
    UpdateWindow(hwnd);

    id = strtol(argv[2], &rest, 0);
    if (rest == argv[2]) {
	char buf[256];

	child = GetWindow(hwnd, GW_CHILD);
	while (child != NULL) {
	    SendMessage(child, WM_GETTEXT, (WPARAM) sizeof(buf), (LPARAM) buf);
	    if (strcasecmp(buf, argv[2]) == 0) {
		id = GetDlgCtrlID(child);
		break;
	    }
	    child = GetWindow(child, GW_HWNDNEXT);
	}
	if (child == NULL) {
	    Tcl_AppendResult(interp, "could not find a control matching \"",
		argv[2], "\"", NULL);
	    return TCL_ERROR;
	}
    }
    message = TkFindStateNum(NULL, NULL, messageMap, argv[3]);
    if (message < 0) {
	message = strtol(argv[3], NULL, 0);
    }
    wParam = 0;
    lParam = 0;

    if (argc > 4) {
	wParam = strtol(argv[4], NULL, 0);
    }
    if (argc > 5) {
	lParam = strtol(argv[5], NULL, 0);
    }

    switch (message) {
    case WM_GETTEXT: {
	Tcl_DString ds;
	char buf[256];

	GetDlgItemText(hwnd, id, buf, 256);
	Tcl_ExternalToUtfDString(NULL, buf, -1, &ds);
	Tcl_AppendResult(interp, Tcl_DStringValue(&ds), NULL);
	Tcl_DStringFree(&ds);
	break;
    }
    case WM_SETTEXT: {
	Tcl_DString ds;

	Tcl_UtfToExternalDString(NULL, argv[4], -1, &ds);
	SetDlgItemText(hwnd, id, Tcl_DStringValue(&ds));
	Tcl_DStringFree(&ds);
	break;
    }
    case WM_COMMAND: {
	char buf[TCL_INTEGER_SPACE];
	if (argc < 5) {
	    wParam = MAKEWPARAM(id, 0);
	    lParam = (LPARAM)child;
	}
	sprintf(buf, "%d", (int) SendMessage(hwnd, message, wParam, lParam));
	Tcl_SetResult(interp, buf, TCL_VOLATILE);
	break;
    }
    default: {
	char buf[TCL_INTEGER_SPACE];

	sprintf(buf, "%d",
		(int)SendDlgItemMessage(hwnd, id, message, wParam, lParam));
	Tcl_SetResult(interp, buf, TCL_VOLATILE);
	break;
    }
    }
    return TCL_OK;
}

/*
 *  testfindwindow title ?class?
 *	Find a Windows window using the FindWindow API call. This takes the window
 *	title and optionally the window class and if found returns the HWND and
 *	raises an error if the window is not found.
 *	eg: testfindwindow Console TkTopLevel
 *	    Can find the console window if it is visible.
 *	eg: testfindwindow "TkTest #10201" "#32770"
 *	    Can find a messagebox window with this title.
 */

static int
TestfindwindowObjCmd(
    ClientData clientData,	/* Main window for application. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument values. */
{
    const TCHAR  *title = NULL, *class = NULL;
    Tcl_DString titleString, classString;
    HWND hwnd = NULL;
    int r = TCL_OK;

    Tcl_DStringInit(&classString);
    Tcl_DStringInit(&titleString);

    if (objc < 2 || objc > 3) {
        Tcl_WrongNumArgs(interp, 1, objv, "title ?class?");
        return TCL_ERROR;
    }

    title = Tcl_WinUtfToTChar(Tcl_GetString(objv[1]), -1, &titleString);
    if (objc == 3) {
        class = Tcl_WinUtfToTChar(Tcl_GetString(objv[2]), -1, &classString);
    }

    hwnd  = tkWinProcs->findWindow(class, title);

    if (hwnd == NULL) {
	Tcl_SetObjResult(interp, Tcl_NewStringObj("failed to find window: ", -1));
	AppendSystemError(interp, GetLastError());
	r = TCL_ERROR;
    } else {
        Tcl_SetObjResult(interp, Tcl_NewLongObj((long)hwnd));
    }

    Tcl_DStringFree(&titleString);
    Tcl_DStringFree(&classString);
    return r;

}

static BOOL CALLBACK
EnumChildrenProc(
    HWND hwnd,
    LPARAM lParam)
{
    Tcl_Obj *listObj = (Tcl_Obj *) lParam;

    Tcl_ListObjAppendElement(NULL, listObj, Tcl_NewLongObj((long) hwnd));
    return TRUE;
}

static int
TestgetwindowinfoObjCmd(
    ClientData clientData,
    Tcl_Interp *interp,
    int objc,
    Tcl_Obj *const objv[])
{
    HWND hwnd = NULL;
    Tcl_Obj *dictObj = NULL, *classObj = NULL, *textObj = NULL;
    Tcl_Obj *childrenObj = NULL;
    char buf[512];
    int cch, cchBuf = tkWinProcs->useWide ? 256 : 512;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "hwnd");
	return TCL_ERROR;
    }

    if (Tcl_GetLongFromObj(interp, objv[1], (long *)&hwnd) != TCL_OK)
	return TCL_ERROR;

    cch = tkWinProcs->getClassName(hwnd, buf, cchBuf);
    if (cch == 0) {
    	Tcl_SetResult(interp, "failed to get class name: ", TCL_STATIC);
    	AppendSystemError(interp, GetLastError());
    	return TCL_ERROR;
    } else {
	Tcl_DString ds;
	Tcl_WinTCharToUtf(buf, -1, &ds);
	classObj = Tcl_NewStringObj(Tcl_DStringValue(&ds), Tcl_DStringLength(&ds));
	Tcl_DStringFree(&ds);
    }

    dictObj = Tcl_NewDictObj();
    Tcl_DictObjPut(interp, dictObj, Tcl_NewStringObj("class", 5), classObj);
    Tcl_DictObjPut(interp, dictObj, Tcl_NewStringObj("id", 2),
	Tcl_NewLongObj(GetWindowLong(hwnd, GWL_ID)));

    cch = tkWinProcs->getWindowText(hwnd, (LPTSTR)buf, cchBuf);
    if (tkWinProcs->useWide) {
	textObj = Tcl_NewUnicodeObj((LPCWSTR)buf, cch);
    } else {
	textObj = Tcl_NewStringObj((LPCSTR)buf, cch);
    }

    Tcl_DictObjPut(interp, dictObj, Tcl_NewStringObj("text", 4), textObj);
    Tcl_DictObjPut(interp, dictObj, Tcl_NewStringObj("parent", 6),
	Tcl_NewLongObj((long)GetParent(hwnd)));

    childrenObj = Tcl_NewListObj(0, NULL);
    EnumChildWindows(hwnd, EnumChildrenProc, (LPARAM)childrenObj);
    Tcl_DictObjPut(interp, dictObj, Tcl_NewStringObj("children", -1), childrenObj);

    Tcl_SetObjResult(interp, dictObj);
    return TCL_OK;
}

static int
TestwinlocaleObjCmd(
    ClientData clientData,	/* Main window for application. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument values. */
{
    if (objc != 1) {
	Tcl_WrongNumArgs(interp, 1, objv, NULL);
	return TCL_ERROR;
    }
    Tcl_SetObjResult(interp, Tcl_NewIntObj((int)GetThreadLocale()));
    return TCL_OK;
}

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */