160 lines
2.4 KiB
C++
160 lines
2.4 KiB
C++
#include "./loginStatus.h"
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#include "./common.h"
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LoginStatus::LoginStatus(HWND hTarget)
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: ref(1), hwnd(hTarget)
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{
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InitializeCriticalSection(&lock);
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}
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LoginStatus::~LoginStatus()
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{
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DeleteCriticalSection(&lock);
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}
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HRESULT LoginStatus::CreateInstance(HWND hTarget, LoginStatus **instance)
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{
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if (NULL == instance)
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return E_POINTER;
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*instance = new LoginStatus(hTarget);
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if (NULL == *instance) return E_OUTOFMEMORY;
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return S_OK;
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}
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ULONG LoginStatus::AddRef()
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{
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return InterlockedIncrement((LONG*)&ref);
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}
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ULONG LoginStatus::Release()
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{
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if (0 == ref)
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return ref;
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LONG r = InterlockedDecrement((LONG*)&ref);
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if (0 == r)
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delete(this);
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return r;
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}
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UINT LoginStatus::Add(BSTR status)
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{
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EnterCriticalSection(&lock);
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Record r;
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r.cookie = GetNextCookie();
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r.text = status;
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list.push_back(r);
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LeaveCriticalSection(&lock);
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UpdateWindowText();
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return r.cookie;
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}
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BOOL LoginStatus::Set(UINT cookie, BSTR status)
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{
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BOOL foundOk = FALSE;
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EnterCriticalSection(&lock);
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size_t index = list.size();
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while(index--)
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{
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if (cookie == list[index].cookie)
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{
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SysFreeString(list[index].text);
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list[index].text = status;
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foundOk = TRUE;
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break;
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}
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}
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LeaveCriticalSection(&lock);
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UpdateWindowText();
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return foundOk;
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}
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void LoginStatus::Remove(UINT cookie)
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{
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EnterCriticalSection(&lock);
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size_t index = list.size();
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while(index--)
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{
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if (cookie == list[index].cookie)
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{
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SysFreeString(list[index].text);
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list.eraseAt(index);
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break;
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}
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}
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LeaveCriticalSection(&lock);
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UpdateWindowText();
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}
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BOOL LoginStatus::AttachWindow(HWND hTarget)
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{
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DetachWindow();
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hwnd = hTarget;
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UpdateWindowText();
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return TRUE;
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}
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BOOL LoginStatus::DetachWindow()
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{
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hwnd = NULL;
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return TRUE;
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}
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UINT LoginStatus::GetNextCookie()
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{
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size_t i, count;
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count = list.size();
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UINT cookie = (UINT)count;
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do
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{
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for (i = 0; i < count; i++)
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{
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if (list[i].cookie == cookie)
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{
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cookie++;
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break;
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}
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}
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} while(i != count);
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return cookie;
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}
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BOOL LoginStatus::UpdateWindowText()
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{
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EnterCriticalSection(&lock);
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BOOL resultOk = FALSE;
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if (NULL != hwnd)
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{
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BSTR text = NULL;
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size_t index = list.size();
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while(index--)
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{
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if (NULL != list[index].text && L'\0' != list[index].text)
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{
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text = list[index].text;
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break;
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}
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}
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resultOk = (BOOL)SendMessage(hwnd, WM_SETTEXT, 0, (LPARAM)text);
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}
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LeaveCriticalSection(&lock);
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return resultOk;
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}
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