Initial community commit

Src/auth/Loginbox/editboxExtender.cpp

@@ -0,0 +1,269 @@
+#include "./editboxExtender.h"
+#include "./common.h"
+
+#include <commctrl.h>
+
+#define NAEF_USERFLAGSMASK	0x00FFFFFF
+#define NAEF_UNICODE		0x01000000
+
+typedef struct __EDITBOXEXTENDER
+{
+	WNDPROC originalProc;
+	UINT	flags;
+	DWORD	dblclkTime;
+	LPWSTR	rollbackText;
+} EDITBOXEXTENDER;
+
+#define EDITBOXEXTENDER_PROP		L"NullsoftEditboxExtender"
+
+#define GetEditbox(__hwnd) ((EDITBOXEXTENDER*)GetProp((__hwnd), EDITBOXEXTENDER_PROP))
+
+static LRESULT CALLBACK EditboxExtender_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
+
+BOOL EditboxExtender_AttachWindow(HWND hEditbox)
+{
+	if (!IsWindow(hEditbox)) 
+		return  FALSE;
+
+	EDITBOXEXTENDER *editbox = (EDITBOXEXTENDER*)GetProp(hEditbox, EDITBOXEXTENDER_PROP);
+	if (NULL != editbox) return TRUE;
+	
+	editbox = (EDITBOXEXTENDER*)calloc(1, sizeof(EDITBOXEXTENDER));
+	if (NULL == editbox) return FALSE;
+
+	if (IsWindowUnicode(hEditbox))
+		editbox->flags |= NAEF_UNICODE;
+
+	editbox->originalProc = (WNDPROC)(LONG_PTR)((0 != (NAEF_UNICODE & editbox->flags)) ? 
+						SetWindowLongPtrW(hEditbox, GWLP_WNDPROC, (LONGX86)(LONG_PTR)EditboxExtender_WindowProc) : 
+						SetWindowLongPtrA(hEditbox, GWLP_WNDPROC, (LONGX86)(LONG_PTR)EditboxExtender_WindowProc));
+
+	if (NULL == editbox->originalProc || !SetProp(hEditbox, EDITBOXEXTENDER_PROP, editbox))
+	{
+		if (NULL != editbox->originalProc)
+		{
+			if (0 != (NAEF_UNICODE & editbox->flags))
+				SetWindowLongPtrW(hEditbox, GWLP_WNDPROC, (LONGX86)(LONG_PTR)editbox->originalProc);
+			else
+				SetWindowLongPtrA(hEditbox, GWLP_WNDPROC, (LONGX86)(LONG_PTR)editbox->originalProc);
+		}
+			
+		free(editbox);
+		return FALSE;
+	}
+	return TRUE;
+}
+
+
+static void EditboxExtender_Detach(HWND hwnd)
+{	
+	EDITBOXEXTENDER *editbox = GetEditbox(hwnd);
+	RemoveProp(hwnd, EDITBOXEXTENDER_PROP);
+
+	if (NULL == editbox) 
+		return;
+
+	if (NULL != editbox->originalProc)
+	{
+		if (0 != (NAEF_UNICODE & editbox->flags))
+			SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (LONGX86)(LONG_PTR)editbox->originalProc);
+		else
+			SetWindowLongPtrA(hwnd, GWLP_WNDPROC, (LONGX86)(LONG_PTR)editbox->originalProc);
+	}
+	free(editbox);
+}
+
+
+static LRESULT EditboxExtender_CallOrigWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	EDITBOXEXTENDER *editbox = GetEditbox(hwnd);
+
+	if (NULL == editbox || NULL == editbox->originalProc)
+	{
+		return (0 != (NAEF_UNICODE & editbox->flags)) ? 
+				DefWindowProcW(hwnd, uMsg, wParam, lParam) : 
+				DefWindowProcA(hwnd, uMsg, wParam, lParam);
+	}
+
+	return (0 != (NAEF_UNICODE & editbox->flags)) ? 
+			CallWindowProcW(editbox->originalProc, hwnd, uMsg, wParam, lParam) : 
+			CallWindowProcA(editbox->originalProc, hwnd, uMsg, wParam, lParam);
+}
+
+static void EditboxExtender_OnDestroy(HWND hwnd)
+{
+	EDITBOXEXTENDER *editbox = GetEditbox(hwnd);
+	
+	WNDPROC originalProc = editbox->originalProc;
+	BOOL fUnicode = (0 != (NAEF_UNICODE & editbox->flags));
+
+	EditboxExtender_Detach(hwnd);
+
+	if (NULL != originalProc)
+	{
+		if (FALSE != fUnicode) 
+			CallWindowProcW(originalProc, hwnd, WM_DESTROY, 0, 0L);
+		else
+			CallWindowProcA(originalProc, hwnd, WM_DESTROY, 0, 0L);
+	}
+}
+
+static LRESULT EditboxExtender_OnGetDlgCode(HWND hwnd, INT vKey, MSG* pMsg)
+{
+	LRESULT result = EditboxExtender_CallOrigWindowProc(hwnd, WM_GETDLGCODE, (WPARAM)vKey, (LPARAM)pMsg);
+	return result;
+}
+
+static void EditboxExtender_OnLButtonDown(HWND hwnd, UINT vKey, POINTS pts)
+{
+	EDITBOXEXTENDER *editbox = GetEditbox(hwnd);
+	if (NULL != editbox)
+	{
+		DWORD clickTime = GetTickCount();
+		if (clickTime >= editbox->dblclkTime && clickTime <= (editbox->dblclkTime + GetDoubleClickTime()))
+		{
+			SendMessage(hwnd, EM_SETSEL, 0, -1);
+			return;
+		}
+	}
+	EditboxExtender_CallOrigWindowProc(hwnd, WM_LBUTTONDOWN, (WPARAM)vKey, *((LPARAM*)&pts));
+}
+
+static void EditboxExtender_OnLButtonDblClk(HWND hwnd, UINT vKey, POINTS pts)
+{
+	EDITBOXEXTENDER *editbox = GetEditbox(hwnd);
+	if (NULL == editbox) return;
+	
+	DWORD clickTime = GetTickCount();
+	if (clickTime >= editbox->dblclkTime && clickTime <= (editbox->dblclkTime + 2*GetDoubleClickTime()))
+	{
+		INT r = (INT)SendMessage(hwnd, EM_CHARFROMPOS, 0, *(LPARAM*)&pts); 
+		r = LOWORD(r);
+		SendMessage(hwnd, EM_SETSEL, (WPARAM)r, (LPARAM)r);
+		editbox->dblclkTime = 0;
+	}
+	else
+	{
+		editbox->dblclkTime = clickTime;
+	}
+
+	INT f, l;
+	SendMessage(hwnd, EM_GETSEL, (WPARAM)&f, (LPARAM)&l);
+	if (f != l) return;
+	
+		
+	EditboxExtender_CallOrigWindowProc(hwnd, WM_LBUTTONDBLCLK, (WPARAM)vKey, *((LPARAM*)&pts));
+
+}
+
+static void EditboxExtender_OnChar(HWND hwnd, UINT vKey, UINT state)
+{	
+	if (0 == (0x8000 & GetAsyncKeyState(VK_CONTROL)) && 0 == (0x8000 & GetAsyncKeyState(VK_MENU)))
+	{
+		HWND hParent = GetAncestor(hwnd, GA_PARENT);
+		if (NULL != hParent)
+		{
+			NMCHAR nmh;
+			nmh.hdr.hwndFrom = hwnd;
+			nmh.hdr.idFrom = (INT)(INT_PTR)GetWindowLongPtr(hwnd, GWLP_ID);
+			nmh.hdr.code = NM_CHAR;
+			nmh.ch = vKey;
+			nmh.dwItemNext = 0;
+			nmh.dwItemPrev = 0;
+			if (FALSE != (BOOL)SendMessage(hParent, WM_NOTIFY, nmh.hdr.idFrom, (LPARAM)&nmh))
+				return;
+		}
+	}
+	EditboxExtender_CallOrigWindowProc(hwnd, WM_CHAR, (WPARAM)vKey, (LPARAM)state);
+}
+
+static void EditboxExtender_OnKeyDown(HWND hwnd, UINT vKey, UINT state)
+{	
+	HWND hParent = GetAncestor(hwnd, GA_PARENT);
+	if (NULL != hParent)
+	{
+		NMKEY nmh;
+		nmh.hdr.hwndFrom = hwnd;
+		nmh.hdr.idFrom = (INT)(INT_PTR)GetWindowLongPtr(hwnd, GWLP_ID);
+		nmh.hdr.code = NM_KEYDOWN;
+		nmh.nVKey = vKey;
+		nmh.uFlags = HIWORD(state);
+		if (FALSE != (BOOL)SendMessage(hParent, WM_NOTIFY, nmh.hdr.idFrom, (LPARAM)&nmh))
+			return;
+	}
+
+	EditboxExtender_CallOrigWindowProc(hwnd, WM_KEYDOWN, (WPARAM)vKey, (LPARAM)state);
+}
+
+static void EditboxExtender_PasteText(HWND hwnd, LPCWSTR pszClipboard)
+{	
+	HWND hParent = GetAncestor(hwnd, GA_PARENT);
+	if (NULL != hParent)
+	{
+		EENMPASTE nmh;
+		nmh.hdr.hwndFrom = hwnd;
+		nmh.hdr.idFrom = (INT)(INT_PTR)GetWindowLongPtr(hwnd, GWLP_ID);
+		nmh.hdr.code = EENM_PASTE;
+		nmh.text = pszClipboard;
+		if (FALSE != (BOOL)SendMessage(hParent, WM_NOTIFY, nmh.hdr.idFrom, (LPARAM)&nmh))
+			return;
+	}
+
+	SendMessage(hwnd, EM_REPLACESEL, (WPARAM)TRUE, (LPARAM)pszClipboard);
+}
+
+static void EditboxExtender_OnPaste(HWND hwnd)
+{
+	IDataObject *pObject;
+	HRESULT hr = OleGetClipboard(&pObject);
+	if (SUCCEEDED(hr))
+	{		
+		FORMATETC fmt = {CF_UNICODETEXT, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
+		STGMEDIUM stgm; 
+		hr = pObject->GetData(&fmt, &stgm);
+		if(S_OK == hr) 
+		{
+			LPCWSTR pClipboard = (LPCWSTR)GlobalLock(stgm.hGlobal);
+			EditboxExtender_PasteText(hwnd, pClipboard);
+			
+      		GlobalUnlock(stgm.hGlobal);
+			ReleaseStgMedium(&stgm);
+
+		}
+		else
+		{
+			fmt.cfFormat = CF_TEXT;
+			hr = pObject->GetData(&fmt, &stgm);
+			if(S_OK == hr) 
+			{
+				LPCSTR pClipboardAnsi = (LPCSTR)GlobalLock(stgm.hGlobal);
+				LPWSTR pClipboard;
+				if (FAILED(LoginBox_MultiByteToWideChar(CP_ACP, 0, pClipboardAnsi, -1, &pClipboard)))
+					pClipboard = NULL;
+
+				EditboxExtender_PasteText(hwnd, pClipboard);
+		
+				LoginBox_FreeString(pClipboard);
+      			GlobalUnlock(stgm.hGlobal);
+				ReleaseStgMedium(&stgm);
+			}
+		}
+  		pObject->Release();
+	}
+}
+
+static LRESULT CALLBACK EditboxExtender_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	switch(uMsg)
+	{
+		case WM_DESTROY:		EditboxExtender_OnDestroy(hwnd); return 0;
+		case WM_GETDLGCODE:		return EditboxExtender_OnGetDlgCode(hwnd, (INT)wParam, (MSG*)lParam);
+		case WM_LBUTTONDOWN:	EditboxExtender_OnLButtonDown(hwnd, (UINT)wParam, MAKEPOINTS(lParam)); return 0;
+		case WM_LBUTTONDBLCLK:	EditboxExtender_OnLButtonDblClk(hwnd, (UINT)wParam, MAKEPOINTS(lParam)); return 0;
+		case WM_CHAR:			EditboxExtender_OnChar(hwnd, (UINT)wParam, (UINT)lParam); return 0;
+		case WM_KEYDOWN:		EditboxExtender_OnKeyDown(hwnd, (UINT)wParam, (UINT)lParam); return 0;
+		case WM_PASTE:			EditboxExtender_OnPaste(hwnd); return 1;
+	}
+	
+	return EditboxExtender_CallOrigWindowProc(hwnd, uMsg, wParam, lParam);
+}