145 lines
5 KiB
C
145 lines
5 KiB
C
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//
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// Delivery Agents base class
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#ifndef _DELAGENT_H
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#define _DELAGENT_H
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#include "offline.h"
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#define INET_S_AGENT_BASIC_SUCCESS _HRESULT_TYPEDEF_(0x000C0FFEL)
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class CDeliveryAgent : public ISubscriptionAgentControl,
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public IShellPropSheetExt,
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#ifdef UNICODE
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public IExtractIconA,
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#endif
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public IExtractIcon,
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public ISubscriptionAgentShellExt
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{
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private:
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// Data for our OLE support
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ULONG m_cRef;
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#ifdef AGENT_AUTODIAL
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enum DIALER_STATUS { DIALER_OFFLINE, DIALER_CONNECTING, DIALER_ONLINE };
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DIALER_STATUS m_iDialerStatus;
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#endif
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enum {
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FLAG_BUSY =0x00010000, // addrefed ourselves; between begin & end reports
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FLAG_PAUSED =0x00020000, // We are paused
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FLAG_OPSTARTED =0x00040000, // We've entered StartOperation
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};
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// Derived agents can use high 8 bits of this field
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DWORD m_dwAgentFlags;
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void SendUpdateBegin();
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void SendUpdateEnd();
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HRESULT ProcessEndItem(ISubscriptionItem *pEndItem);
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protected:
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// Upper 16 bits allowable here
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enum {
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FLAG_HOSTED =0x00100000, // hosted by another delivery agent
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FLAG_CHANGESONLY =0x00200000, // We're in "Changes Only" mode
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FLAG_WAITING_FOR_INCREASED_CACHE = 0x00400000, // Special paused state
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};
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POOEBuf m_pBuf;
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HPROPSHEETPAGE m_hPage[MAX_WC_AGENT_PAGES];
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ISubscriptionAgentEvents *m_pAgentEvents;
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ISubscriptionItem *m_pSubscriptionItem;
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SUBSCRIPTIONCOOKIE m_SubscriptionCookie;
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long m_lSizeDownloadedKB; // Size downloaded in KB
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SCODE m_scEndStatus;
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void SendUpdateNone(); // Call from StartOperation if we won't be doing anything
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void SendUpdateProgress(LPCWSTR pwszURL, long lProgress, long lMax, long lCurSizeKB=-1);
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BOOL IsAgentFlagSet(int iFlag) { return (m_dwAgentFlags & iFlag); }
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void ClearAgentFlag(int iFlag) { m_dwAgentFlags &= ~iFlag; }
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void SetAgentFlag(int iFlag) { m_dwAgentFlags |= iFlag; }
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HRESULT CheckResponseCode(DWORD dwHttpResponseCode); // Also sets EndStatus. E_ABORT on error.
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// DIALER_STATUS GetDialerStatus() { return m_iDialerStatus; }
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void SetEndStatus(SCODE sc) { m_scEndStatus = sc; }
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virtual ~CDeliveryAgent();
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public:
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CDeliveryAgent();
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BOOL GetBusy() { return IsAgentFlagSet(FLAG_BUSY); }
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BOOL IsPaused() { return IsAgentFlagSet(FLAG_PAUSED); }
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SCODE GetEndStatus() { return m_scEndStatus; }
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// IUnknown members
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STDMETHODIMP QueryInterface(REFIID riid, void **punk);
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STDMETHODIMP_(ULONG) AddRef(void);
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STDMETHODIMP_(ULONG) Release(void);
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// ISubscriptionAgentControl members
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STDMETHODIMP StartUpdate(IUnknown *pItem, IUnknown *punkAdvise);
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STDMETHODIMP PauseUpdate(DWORD dwFlags);
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STDMETHODIMP ResumeUpdate(DWORD dwFlags);
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STDMETHODIMP AbortUpdate(DWORD dwFlags);
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STDMETHODIMP SubscriptionControl(IUnknown *pItem, DWORD dwControl); // Called on delete
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// IShellPropSheetExt members
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STDMETHODIMP AddPages(LPFNADDPROPSHEETPAGE, LPARAM);
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STDMETHODIMP ReplacePage(UINT, LPFNADDPROPSHEETPAGE, LPARAM);
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// ISubscriptionAgentShellExt
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STDMETHODIMP Initialize(SUBSCRIPTIONCOOKIE *pSubscriptionCookie,
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LPCWSTR pwszURL, LPCWSTR pwszName,
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SUBSCRIPTIONTYPE subsType);
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STDMETHODIMP RemovePages(HWND hdlg);
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STDMETHODIMP SaveSubscription();
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STDMETHODIMP URLChange(LPCWSTR pwszNewURL);
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#ifdef UNICODE
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// IExtractIconA
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STDMETHODIMP GetIconLocation(UINT uFlags, LPSTR szIconFile, UINT cchMax, int * piIndex, UINT * pwFlags);
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STDMETHODIMP Extract(LPCSTR pszFile, UINT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIconSize);
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#endif
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// IExtractIconT
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STDMETHODIMP GetIconLocation(UINT uFlags, LPTSTR szIconFile, UINT cchMax, int * piIndex, UINT * pwFlags);
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STDMETHODIMP Extract(LPCTSTR pszFile, UINT nIconIndex, HICON * phiconLarge, HICON * phiconSmall, UINT nIconSize);
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private:
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// Functions we provide common implementations for
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HRESULT DoStartDownload();
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#ifdef AGENT_AUTODIAL
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HRESULT NotifyAutoDialer();
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HRESULT OnInetOnline();
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HRESULT OnInetOffline();
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#endif
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protected:
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// Virtual functions for our derived classes to override as necessary
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// We provide implementations which should be called after processing
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virtual HRESULT AgentPause(DWORD dwFlags);
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virtual HRESULT AgentResume(DWORD dwFlags);
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virtual HRESULT AgentAbort(DWORD dwFlags);
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virtual HRESULT ModifyUpdateEnd(ISubscriptionItem *pEndItem, UINT *puiRes);
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virtual HRESULT StartOperation(); // connects to internet
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virtual HRESULT StartDownload() = 0; // we just got connected
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virtual void CleanUp();
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};
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#endif // _DELAGENT_H
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