Class CUpdateHandler

vcproject/View.h:116–167

	};

	class CUpdateHandler : public CIdleHandler
	{
	protected:
		HWND m_hWnd;
		std::future<bool> m_task;
		Updater m_updater;
	public:

		CUpdateHandler(HWND hWnd, const std::string& currentVersion, const std::string& userAgent) : m_hWnd(hWnd), m_updater(currentVersion)
		{
			m_updater.setUserAgent(userAgent);
		}

		~CUpdateHandler()
		{
		}

		void startTask()
		{
			m_task = std::async(std::launch::async, &Updater::checkUpdate, &m_updater);
		}

		virtual BOOL OnIdle()
		{
			std::future_status status = m_task.wait_for(std::chrono::seconds(0));
			if (status == std::future_status::ready)
			{
				::PostMessage(m_hWnd, WM_CHKUPDATE, 1, reinterpret_cast<LPARAM>(this));
				return FALSE;
			}

			return TRUE;
		}

		bool hasNewVersion()
		{
			return m_task.get();
		}

		CString getNewVersion() const
		{
			CW2T pszT(CA2W(m_updater.getNewVersion().c_str(), CP_UTF8));
			return CString(pszT);
		}

		CString getUpdateUrl() const
		{
			CW2T pszT(CA2W(m_updater.getUpdateUrl().c_str(), CP_UTF8));
			return CString(pszT);
		}

	};

public:
	enum { IDD = IDD_WECHATEXPORTER_FORM };