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917 lines
27 KiB
917 lines
27 KiB
/**************************************************************\
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FILE: mrulist.cpp
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DESCRIPTION:
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CMRUList implements the Shell Name Space List or DriveList.
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This will store a pidl and be able to populate the AddressBand
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combobox with the shell name space that includes that PIDL.
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\**************************************************************/
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#include "priv.h"
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#include "addrlist.h"
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#include "itbar.h"
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#include "itbdrop.h"
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#include "util.h"
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#include "autocomp.h"
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#include <urlhist.h>
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#include <winbase.h>
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#include <wininet.h>
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#define SUPERCLASS CAddressList
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///////////////////////////////////////////////////////////////////
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// #DEFINEs
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#define MRU_LIST_MAX_CONST 25
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///////////////////////////////////////////////////////////////////
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// Data Structures
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typedef struct tagSIZESTRCOMBO
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{
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DWORD dwStringSize; // Size in Characters (not bytes)
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LPTSTR lpszString;
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int iImage;
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int iSelectedImage;
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} SIZESTRCOMBO;
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///////////////////////////////////////////////////////////////////
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// Prototypes
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/**************************************************************\
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CLASS: CMRUList
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DESCRIPTION:
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The MRU List will contain the type MRU history for the
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browser. This is an IAddressList used by the Address Band/Bar.
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\**************************************************************/
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class CMRUList : public CAddressList
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, public IMRU
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, public IPersistStream
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{
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public:
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//////////////////////////////////////////////////////
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// Public Interfaces
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//////////////////////////////////////////////////////
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// *** IUnknown ***
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virtual STDMETHODIMP_(ULONG) AddRef(void);
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virtual STDMETHODIMP_(ULONG) Release(void);
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virtual STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj);
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// *** IAddressList methods ***
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virtual STDMETHODIMP Connect(BOOL fConnect, HWND hwnd, IBrowserService * pbs, IBandProxy * pbp, IAutoComplete * pac);
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virtual STDMETHODIMP Refresh(DWORD dwType);
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virtual STDMETHODIMP Save(void);
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// *** IPersistStream methods ***
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virtual STDMETHODIMP GetClassID(CLSID *pClassID){ *pClassID = CLSID_MRUList; return S_OK; }
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virtual STDMETHODIMP Load(IStream *pStm) { return S_OK; }
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virtual STDMETHODIMP Save(IStream *pStm, BOOL fClearDirty);
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virtual STDMETHODIMP IsDirty(void) { return S_FALSE; }
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virtual STDMETHODIMP GetSizeMax(ULARGE_INTEGER *pcbSize) { return E_NOTIMPL; }
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// *** IMRU methods ***
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virtual STDMETHODIMP AddEntry(LPCWSTR pszEntry);
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// IWinEventHandler
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virtual STDMETHODIMP OnWinEvent(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *plres);
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protected:
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//////////////////////////////////////////////////////
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// Private Member Functions
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//////////////////////////////////////////////////////
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// Constructor / Destructor
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CMRUList();
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~CMRUList(void); // This is now an OLE Object and cannot be used as a normal Class.
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// Address List Modification Functions
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HRESULT _UpdateMRUEntry(LPCTSTR szNewValue, int nIndex, int iImage , int iISelectedImage);
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HRESULT _LoadList(void);
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HKEY _GetRegKey(BOOL fCreate);
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HRESULT _UpdateMRU(void);
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int _FindInMRU(LPCTSTR szURL);
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HRESULT _MRUMerge(HKEY kKey);
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BOOL _MoveAddressToTopOfMRU(int nMRUIndex);
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HRESULT _PopulateOneItem(void);
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HRESULT _Populate(void);
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void _InitCombobox(void);
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HRESULT _SetTopItem(void);
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// Friend Functions
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friend IAddressList * CMRUList_Create(void);
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//////////////////////////////////////////////////////
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// Private Member Variables
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//////////////////////////////////////////////////////
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BOOL _fDropDownPopulated;// Have we populated the drop down yet?
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BOOL _fListLoaded; // Have we loaded the Type-in MRU?
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BOOL _fMRUUptodate; // Is it necessary to update the MRU?
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BOOL _fNeedToSave; // Do we need to update the registry?
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SIZESTRCOMBO _szMRU[MRU_LIST_MAX_CONST]; // MRU list.
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int _nMRUSize; // Number of entries in MRU used.
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};
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//=================================================================
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// Implementation of CMRUList
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//=================================================================
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/****************************************************\
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FUNCTION: CMRUList_Create
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DESCRIPTION:
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This function will create an instance of the
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CMRUList COM object.
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\****************************************************/
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IAddressList * CMRUList_Create(void)
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{
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CMRUList *p = new CMRUList();
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return p;
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}
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/****************************************************\
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Address Band Constructor
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\****************************************************/
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CMRUList::CMRUList()
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{
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}
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/****************************************************\
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Address Band destructor
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\****************************************************/
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CMRUList::~CMRUList()
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{
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// loop through every potential saved URL in registry.
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if (_fListLoaded)
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{
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for (int nIndex = 0; (nIndex < MRU_LIST_MAX_CONST) && (_szMRU[nIndex].lpszString); nIndex++)
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{
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LocalFree(_szMRU[nIndex].lpszString);
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}
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}
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}
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//===========================
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// *** IUnknown Interface ***
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HRESULT CMRUList::QueryInterface(REFIID riid, void **ppvObj)
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{
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if (IsEqualIID(riid, IID_IMRU))
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{
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*ppvObj = SAFECAST(this, IMRU*);
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}
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else if (IsEqualIID(riid, IID_IPersistStream))
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{
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*ppvObj = SAFECAST(this, IPersistStream*);
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}
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else
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{
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return SUPERCLASS::QueryInterface(riid,ppvObj);
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}
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AddRef();
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return S_OK;
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}
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ULONG CMRUList::AddRef()
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{
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return SUPERCLASS::AddRef();
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}
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ULONG CMRUList::Release()
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{
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return SUPERCLASS::Release();
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}
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//================================
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// *** IAddressList Interface ***
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/****************************************************\
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FUNCTION: Connect
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DESCRIPTION:
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We are either becoming the selected list for
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the AddressBand's combobox, or lossing this status.
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We need to populate or unpopulate the combobox
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as appropriate.
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\****************************************************/
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HRESULT CMRUList::Connect(BOOL fConnect, HWND hwnd, IBrowserService * pbs, IBandProxy * pbp, IAutoComplete * pac)
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{
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HRESULT hr = S_OK;
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_fVisible = fConnect;
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if (!_hwnd)
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_hwnd = hwnd;
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ASSERT(_hwnd);
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if (fConnect)
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{
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// This needs to come before because it setups up
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// pointers that we need.
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SUPERCLASS::Connect(fConnect, hwnd, pbs, pbp, pac);
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// Initial combobox parameters.
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if (_pbp && _pbp->IsConnected() == S_FALSE)
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{
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// Do these tasks only the first time and only if
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// we are not in a browser window (because it will come
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// from the navigation complete).
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_PopulateOneItem();
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}
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}
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else
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{
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_UpdateMRU(); // Save contents of MRU because the ComboBox will be purged.
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_fDropDownPopulated = FALSE;
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// This call needs to come after _UpdateMRU() because
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// it releases pointers that we need.
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SUPERCLASS::Connect(fConnect, hwnd, pbs, pbp, pac);
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}
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return hr;
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}
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/****************************************************\
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FUNCTION: _SetTopItem
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DESCRIPTION:
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TODO.
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\****************************************************/
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HRESULT CMRUList::_SetTopItem(void)
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{
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COMBOBOXEXITEM cbexItem = {0};
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LPCTSTR pszData = _szMRU[0].lpszString;
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if (pszData) {
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cbexItem.mask = CBEIF_TEXT | CBEIF_IMAGE | CBEIF_SELECTEDIMAGE;
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cbexItem.iItem = -1;
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cbexItem.pszText =(LPTSTR)pszData;
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cbexItem.cchTextMax = lstrlen(pszData);
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if(_szMRU[0].iImage == -1 || _szMRU[0].iSelectedImage == -1) {
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_GetUrlUI(NULL,pszData, &(_szMRU[0].iImage),\
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&(_szMRU[0].iSelectedImage));
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}
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cbexItem.iImage =_szMRU[0].iImage;
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cbexItem.iSelectedImage = _szMRU[0].iSelectedImage;
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SendMessage(_hwnd, CBEM_SETITEM, (WPARAM)0, (LPARAM)(LPVOID)&cbexItem);
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}
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return S_OK;
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}
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//================================
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// *** IMRU Interface ***
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/*******************************************************************
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FUNCTION: AddEntry
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DESCRIPTION:
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Adds the specified URL to the top of the address bar
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combo box. Limits the number of URLs in combo box to
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MRU_LIST_MAX_CONST.
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********************************************************************/
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HRESULT CMRUList::AddEntry(LPCWSTR pszEntry)
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{
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HRESULT hr = S_OK;
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_fNeedToSave = TRUE;
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if (_fDropDownPopulated)
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{
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_ComboBoxInsertURL(pszEntry, MAX_URL_STRING, MRU_LIST_MAX_CONST);
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_fMRUUptodate = FALSE;
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}
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else
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{
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int nMRUIndex;
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if (!_fListLoaded)
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_LoadList();
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// Since we don't own the ComboBox, we need to add it to
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// the end of our MRU data.
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nMRUIndex = _FindInMRU(pszEntry); // Now make it the top most.
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if (-1 != nMRUIndex)
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{
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// We already have this entry in our list, so all we need
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// to do is move it to the top.
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_MoveAddressToTopOfMRU(nMRUIndex);
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return hr;
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}
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for (nMRUIndex = 0; nMRUIndex < MRU_LIST_MAX_CONST; nMRUIndex++)
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{
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if (!_szMRU[nMRUIndex].lpszString)
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{ // We found an empty spot.
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_UpdateMRUEntry(pszEntry, nMRUIndex, -1, -1);
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break; // We are done.
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}
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}
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if (MRU_LIST_MAX_CONST == nMRUIndex)
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{
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// The MRU is full so we will replace the last entry.
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_UpdateMRUEntry(pszEntry, --nMRUIndex, -1, -1);
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}
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_MoveAddressToTopOfMRU(nMRUIndex); // Now make it the top most.
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}
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TraceMsg(TF_BAND|TF_GENERAL, "CMRUList: AddEntry(), URL=%s", pszEntry);
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return hr;
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}
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//================================
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// *** IPersistStream Interface ***
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/****************************************************\
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FUNCTION: Save
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DESCRIPTION:
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TODO.
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\****************************************************/
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HRESULT CMRUList::Save(IStream *pstm, BOOL fClearDirty)
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{
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// APPCOMPAT: There currently is a bug in the shell that it leaks
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// an object. This causes CAddressBand to never be
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// destructed when hosted in the TaskBar.
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// Since we normally call IAddressList::SaveList() in the
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// destructor, we will now need to call it
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// from here in that case.
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if (_pbp && _pbp->IsConnected() == S_FALSE)
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{
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Save();
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}
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return S_OK;
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}
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/****************************************************\
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FUNCTION: _InitCombobox
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DESCRIPTION:
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Prepare the combo box for this list. This normally
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means that the indenting and icon are either turned
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on or off.
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\****************************************************/
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void CMRUList::_InitCombobox()
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{
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HIMAGELIST himlSysSmall;
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Shell_GetImageLists(NULL, &himlSysSmall);
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SendMessage(_hwnd, CBEM_SETIMAGELIST, 0, (LPARAM)himlSysSmall);
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SendMessage(_hwnd, CBEM_SETEXTENDEDSTYLE, 0,0);
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SUPERCLASS::_InitCombobox();
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}
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HKEY CMRUList::_GetRegKey(BOOL fCreate)
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{
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BOOL fIsConnected = FALSE;
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HKEY hKey;
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DWORD result;
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LPCTSTR pszKey;
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if (_pbp)
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fIsConnected = (_pbp->IsConnected() == S_OK);
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if (fIsConnected)
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pszKey = SZ_REGKEY_TYPEDURLMRU;
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else
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pszKey = SZ_REGKEY_TYPEDCMDMRU;
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if (fCreate)
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result = RegCreateKey(HKEY_CURRENT_USER, pszKey, &hKey);
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else
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result = RegOpenKey(HKEY_CURRENT_USER, pszKey, &hKey);
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if (result != ERROR_SUCCESS)
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return NULL;
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return hKey;
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}
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/****************************************************\
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FUNCTION: _LoadList
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DESCRIPTION:
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When the ComboBox is switched to this MRU
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AddressList, the contents need to be populated. Before
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that happens, we copy the data to the combobox
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from the registry.
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\****************************************************/
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HRESULT CMRUList::_LoadList(void)
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{
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HRESULT hr = S_OK;
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HKEY hKey;
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DWORD dwCount;
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TCHAR szAddress[MAX_URL_STRING+1];
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ASSERT(!_fListLoaded);
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ASSERT(_hwnd);
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hKey = _GetRegKey(TRUE);
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ASSERT(hKey);
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if (!hKey)
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return E_FAIL;
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for (dwCount = 0; dwCount < MRU_LIST_MAX_CONST ; dwCount++)
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{
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hr = GetMRUEntry(hKey, dwCount, szAddress, SIZECHARS(szAddress), NULL);
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if (SUCCEEDED(hr))
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_UpdateMRUEntry(szAddress, (int)dwCount, -1, -1);
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else
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{
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_szMRU[dwCount].lpszString = NULL;
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_szMRU[dwCount].iImage = -1;
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_szMRU[dwCount].iSelectedImage = -1;
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}
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}
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RegCloseKey(hKey);
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_fListLoaded = TRUE;
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return hr;
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}
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/****************************************************\
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FUNCTION: Save
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DESCRIPTION:
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When this object is closed, we save the contents
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to the registry.
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\****************************************************/
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HRESULT CMRUList::Save(void)
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{
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HRESULT hr = S_OK;
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HKEY hKey;
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DWORD result;
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TCHAR szValueName[10]; // big enough for "url99"
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int nCount;
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int nItems = (_fDropDownPopulated) ? ComboBox_GetCount(_hwnd) : _nMRUSize;
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if (!_fListLoaded || !_fNeedToSave) // Don't save the registry if we don't need to.
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return S_OK;
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if (!_fMRUUptodate)
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hr = _UpdateMRU();
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hKey = _GetRegKey(TRUE);
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ASSERT(hKey);
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if (!hKey)
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return E_FAIL;
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hr = _MRUMerge(hKey); // Merge if the list has been modified.
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// loop through every potential saved URL in registry.
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for (nCount = 0; nCount < MRU_LIST_MAX_CONST; nCount++)
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{
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// make a value name a la "url1" (1-based for historical reasons)
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wnsprintf(szValueName, ARRAYSIZE(szValueName), SZ_REGVAL_MRUENTRY, nCount+1);
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// for every combo box item we have, get the corresponding
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// text and save it in the registry
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if (nCount < nItems && _szMRU[nCount].lpszString)
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{
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// store it in registry and off to the next one.
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result = SHSetValue(hKey, NULL, szValueName, REG_SZ, (CONST BYTE *) _szMRU[nCount].lpszString,
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_szMRU[nCount].dwStringSize*SIZEOF(TCHAR));
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}
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else
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{
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// if we get here, we've run out of combo box items (or
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// failed to retrieve text for one of them). Delete any
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// extra items that may be lingering in the registry.
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SHDeleteValue(hKey, NULL, szValueName);
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}
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}
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_fNeedToSave = FALSE;
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RegCloseKey(hKey);
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return hr;
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}
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|
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/****************************************************\
|
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FUNCTION: _MRUMerge
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DESCRIPTION:
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This function will merge the current contents
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of the saved MRU. This means that if the Address
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Band is being closed, it will load the MRU again
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because it could have been saved by a AddressBar
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that was recently closed down. The merge happens
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like this: If the MRU is not full, items
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in the registry will be appended to the end
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of the MRU if they don't currently exist in the
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MRU.
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\****************************************************/
|
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HRESULT CMRUList::_MRUMerge(HKEY hKey)
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{
|
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HRESULT hr = S_OK;
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UINT nCount;
|
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UINT nNextFreeSlot = _nMRUSize;
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long lResult;
|
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TCHAR szValueName[10]; // big enough for "url99"
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TCHAR szAddress[MAX_URL_STRING+1];
|
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DWORD dwAddress;
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|
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ASSERT(_fListLoaded);
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ASSERT(hKey);
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|
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for (nCount = 0; (nCount < MRU_LIST_MAX_CONST) && (nNextFreeSlot < MRU_LIST_MAX_CONST); nCount++)
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{
|
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// make a value name a la "url1" (1-based for historical reasons)
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|
wnsprintf(szValueName, ARRAYSIZE(szValueName), SZ_REGVAL_MRUENTRY, nCount+1);
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|
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dwAddress = SIZEOF(szAddress);
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|
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lResult = SHQueryValueEx(hKey, szValueName, NULL, NULL, (LPBYTE) szAddress, &dwAddress);
|
|
if (ERROR_SUCCESS == lResult)
|
|
{
|
|
if (-1 == _FindInMRU(szAddress))
|
|
{
|
|
// We found a unique item. Add it to our free slot.
|
|
_UpdateMRUEntry(szAddress, nNextFreeSlot++, -1, -1);
|
|
}
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
|
|
// REARCHITECT: Because the AddressBand is always closed after all
|
|
// AddressBars when the shell is shut down, anything
|
|
// new in the AddressBars will be ignored if the
|
|
// MRU in the AddressBand is full. Revisit.
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
/****************************************************\
|
|
FUNCTION: _UpdateMRU
|
|
|
|
DESCRIPTION:
|
|
Save the contents of the Combobox because
|
|
it will be purged for the next AddressList.
|
|
\****************************************************/
|
|
HRESULT CMRUList::_UpdateMRU(void)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
TCHAR szAddress[MAX_URL_STRING+1];
|
|
// get the number of items in combo box
|
|
int nItems;
|
|
int nCount;
|
|
|
|
if (!_hwnd)
|
|
return S_OK;
|
|
|
|
if (!_fDropDownPopulated)
|
|
return S_OK; // Nothing to update.
|
|
nItems = ComboBox_GetCount(_hwnd);
|
|
|
|
ASSERT(_hwnd);
|
|
|
|
// loop through every potential saved URL in registry.
|
|
for (nCount = 0; nCount < MRU_LIST_MAX_CONST; nCount++)
|
|
{
|
|
// for every combo box item we have, get the corresponding
|
|
// text and save it in our local array.
|
|
if (nCount < nItems)
|
|
{
|
|
COMBOBOXEXITEM cbexItem = {0};
|
|
|
|
cbexItem.mask = CBEIF_TEXT|CBEIF_IMAGE|CBEIF_SELECTEDIMAGE;
|
|
cbexItem.pszText = szAddress;
|
|
cbexItem.cchTextMax = ARRAYSIZE(szAddress);
|
|
cbexItem.iItem = nCount;
|
|
|
|
if (SendMessage(_hwnd, CBEM_GETITEM, 0, (LPARAM) &cbexItem))
|
|
{
|
|
hr = _UpdateMRUEntry(szAddress, nCount, cbexItem.iImage, cbexItem.iSelectedImage);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (_szMRU[nCount].lpszString)
|
|
{
|
|
// Free this array entry because it's not being used.
|
|
LocalFree(_szMRU[nCount].lpszString);
|
|
_szMRU[nCount].lpszString = NULL;
|
|
_szMRU[nCount].iImage = -1;
|
|
_szMRU[nCount].iSelectedImage = -1;
|
|
|
|
_nMRUSize--;
|
|
}
|
|
}
|
|
}
|
|
_fMRUUptodate = TRUE;
|
|
|
|
TraceMsg(TF_BAND|TF_GENERAL, "CMRUList: _UpdateMRU().");
|
|
return hr;
|
|
}
|
|
|
|
|
|
/****************************************************\
|
|
FUNCTION: _UpdateMRUEntry
|
|
|
|
DESCRIPTION:
|
|
When the ComboBox is switched to this MRU
|
|
AddressList, the contents need to be populated. Before
|
|
that happens, we copy the data to the combobox
|
|
from the registry.
|
|
\****************************************************/
|
|
HRESULT CMRUList::_UpdateMRUEntry(LPCTSTR szNewValue, int nIndex, int iImage , int iSelectedImage)
|
|
{
|
|
DWORD dwStrSize = lstrlen(szNewValue);
|
|
|
|
if (!szNewValue)
|
|
{
|
|
// The caller wants us to free the string.
|
|
if (_szMRU[nIndex].lpszString)
|
|
{
|
|
// We have a string that needs freeing.
|
|
LocalFree(_szMRU[nIndex].lpszString);
|
|
_szMRU[nIndex].lpszString = NULL;
|
|
_nMRUSize--;
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
if (!(_szMRU[nIndex].lpszString))
|
|
{
|
|
// We need to create the string buffer
|
|
_szMRU[nIndex].dwStringSize = dwStrSize+1;
|
|
_szMRU[nIndex].lpszString = (LPTSTR) LocalAlloc(LPTR, _szMRU[nIndex].dwStringSize*SIZEOF(TCHAR));
|
|
if (!(_szMRU[nIndex].lpszString))
|
|
return E_FAIL;
|
|
_nMRUSize++;
|
|
}
|
|
|
|
if (dwStrSize + 1 > _szMRU[nIndex].dwStringSize)
|
|
{
|
|
// We need to increase the size of the buffer.
|
|
LocalFree(_szMRU[nIndex].lpszString);
|
|
_szMRU[nIndex].dwStringSize = dwStrSize+1;
|
|
_szMRU[nIndex].lpszString = (LPTSTR) LocalAlloc(LPTR, _szMRU[nIndex].dwStringSize*SIZEOF(TCHAR));
|
|
if (!(_szMRU[nIndex].lpszString))
|
|
return E_FAIL;
|
|
}
|
|
|
|
lstrcpyn(_szMRU[nIndex].lpszString, szNewValue, _szMRU[nIndex].dwStringSize);
|
|
_szMRU[nIndex].iImage = iImage;
|
|
_szMRU[nIndex].iSelectedImage = iSelectedImage;
|
|
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
/****************************************************\
|
|
FUNCTION: _Populate
|
|
|
|
DESCRIPTION:
|
|
fills in the entire combo.
|
|
|
|
WARNING!!!!!!!!:
|
|
This is expensive, don't do it unless absolutely
|
|
necessary!
|
|
\****************************************************/
|
|
HRESULT CMRUList::_Populate(void)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
CShellUrl *psu;
|
|
|
|
if (!_fListLoaded)
|
|
hr = _LoadList(); // Load Data
|
|
|
|
if (_fDropDownPopulated)
|
|
return S_OK; // We are already populated.
|
|
|
|
psu = new CShellUrl();
|
|
|
|
if (psu)
|
|
{
|
|
// We need to set the "Shell Path" so that we can find
|
|
// the correct icons for items in "desktop" and in
|
|
// Desktop/My Computer".
|
|
SetDefaultShellPath(psu);
|
|
|
|
// Give it a parent for displaying message boxes
|
|
psu->SetMessageBoxParent(_hwnd);
|
|
|
|
// read values from registry and put them in combo box
|
|
COMBOBOXEXITEM cbexItem = {0};
|
|
cbexItem.mask = CBEIF_TEXT | CBEIF_IMAGE | CBEIF_SELECTEDIMAGE;
|
|
|
|
for (cbexItem.iItem = 0; cbexItem.iItem < MRU_LIST_MAX_CONST ; cbexItem.iItem++)
|
|
{
|
|
if (_szMRU[cbexItem.iItem].lpszString)
|
|
{
|
|
cbexItem.pszText = _szMRU[cbexItem.iItem].lpszString;
|
|
cbexItem.cchTextMax = _szMRU[cbexItem.iItem].dwStringSize;
|
|
|
|
//Do Image creation when we actually populate
|
|
if(_szMRU[cbexItem.iItem].iImage == -1 || _szMRU[cbexItem.iItem].iSelectedImage == -1) {
|
|
_GetUrlUI(psu,_szMRU[cbexItem.iItem].lpszString, &(_szMRU[cbexItem.iItem].iImage),\
|
|
&(_szMRU[cbexItem.iItem].iSelectedImage));
|
|
}
|
|
|
|
// initialize the image indexes
|
|
cbexItem.iImage = _szMRU[cbexItem.iItem].iImage;
|
|
cbexItem.iSelectedImage = _szMRU[cbexItem.iItem].iSelectedImage;
|
|
|
|
SendMessage(_hwnd, CBEM_INSERTITEM, (WPARAM)0, (LPARAM)(LPVOID)&cbexItem);
|
|
}
|
|
else
|
|
break; // Stop populating when we hit the max.
|
|
}
|
|
_fDropDownPopulated = TRUE;
|
|
|
|
//Delete the shell url object
|
|
delete psu;
|
|
} else {
|
|
// low mem
|
|
hr = E_OUTOFMEMORY;
|
|
}
|
|
|
|
TraceMsg(TF_BAND|TF_GENERAL, "CMRUList: _Populate(). This is a VERY EXPENSIVE operation.");
|
|
return hr;
|
|
}
|
|
|
|
|
|
/****************************************************\
|
|
FUNCTION: _PopulateOneItem
|
|
|
|
DESCRIPTION:
|
|
This just files the ComboBox's edit control.
|
|
We do this when we want to postpone populating
|
|
the entire drop down list.
|
|
\****************************************************/
|
|
HRESULT CMRUList::_PopulateOneItem(void)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
if (!_fListLoaded)
|
|
hr = _LoadList(); // Load Data
|
|
|
|
if (_fDropDownPopulated)
|
|
return S_OK; // We are already populated.
|
|
|
|
hr = _SetTopItem();
|
|
return hr;
|
|
}
|
|
|
|
|
|
/****************************************************\
|
|
FUNCTION: Refresh
|
|
|
|
DESCRIPTION:
|
|
Update the URL in the Top of the list.
|
|
\****************************************************/
|
|
HRESULT CMRUList::Refresh(DWORD dwType)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
if (OLECMD_REFRESH_ENTIRELIST == dwType)
|
|
{
|
|
// Force a refresh. We don't move the contents
|
|
// of the of the Combobox to the MRU because the
|
|
// user wanted to refresh the Combobox because
|
|
// it's contents may be tainted.
|
|
SendMessage(_hwnd, CB_RESETCONTENT, 0, 0L);
|
|
_fDropDownPopulated = FALSE;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
//================================
|
|
// *** Internal/Private Methods ***
|
|
|
|
|
|
/*******************************************************************
|
|
FUNCTION: _MoveAddressToTopOfMRU
|
|
|
|
PARAMETERS:
|
|
nMRUIndex - index of be moved to top.
|
|
|
|
DESCRIPTION:
|
|
This function will move the specified index to the top of
|
|
the list.
|
|
********************************************************************/
|
|
BOOL CMRUList::_MoveAddressToTopOfMRU(int nMRUIndex)
|
|
{
|
|
int nCurrent;
|
|
SIZESTRCOMBO sscNewTopItem;
|
|
_fNeedToSave = TRUE;
|
|
|
|
ASSERT(nMRUIndex < MRU_LIST_MAX_CONST);
|
|
|
|
// Save off new top item info.
|
|
sscNewTopItem.dwStringSize = _szMRU[nMRUIndex].dwStringSize;
|
|
sscNewTopItem.lpszString = _szMRU[nMRUIndex].lpszString;
|
|
sscNewTopItem.iImage = _szMRU[nMRUIndex].iImage;
|
|
sscNewTopItem.iSelectedImage = _szMRU[nMRUIndex].iSelectedImage;
|
|
|
|
for (nCurrent = nMRUIndex; nCurrent > 0; nCurrent--)
|
|
{
|
|
// Move item down in list.
|
|
_szMRU[nCurrent].dwStringSize = _szMRU[nCurrent-1].dwStringSize;
|
|
_szMRU[nCurrent].lpszString = _szMRU[nCurrent-1].lpszString;
|
|
_szMRU[nCurrent].iImage = _szMRU[nCurrent-1].iImage;
|
|
_szMRU[nCurrent].iSelectedImage = _szMRU[nCurrent-1].iSelectedImage;
|
|
}
|
|
|
|
// Set new top item.
|
|
_szMRU[0].dwStringSize = sscNewTopItem.dwStringSize;
|
|
_szMRU[0].lpszString = sscNewTopItem.lpszString;
|
|
_szMRU[0].iImage = sscNewTopItem.iImage;
|
|
_szMRU[0].iSelectedImage = sscNewTopItem.iSelectedImage;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*******************************************************************
|
|
FUNCTION: _FindInMRU
|
|
|
|
PARAMETERS:
|
|
szURL - URL to see if it exists in list.
|
|
|
|
DESCRIPTION:
|
|
Search through MRU for URL. Return value will be -1 if not
|
|
found or index if found.
|
|
********************************************************************/
|
|
int CMRUList::_FindInMRU(LPCTSTR szURL)
|
|
{
|
|
int nCurrent;
|
|
|
|
for (nCurrent = 0; (nCurrent < MRU_LIST_MAX_CONST) && _szMRU[nCurrent].lpszString; nCurrent++)
|
|
{
|
|
if (0 == StrCmpN(_szMRU[nCurrent].lpszString, szURL, _szMRU[nCurrent].dwStringSize))
|
|
{
|
|
// We found it.
|
|
return nCurrent;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
|
|
|
|
HRESULT CMRUList::OnWinEvent(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *plres)
|
|
{
|
|
switch(uMsg) {
|
|
case WM_WININICHANGE:
|
|
{
|
|
HKEY hkey = _GetRegKey(FALSE);
|
|
if (hkey) {
|
|
RegCloseKey(hkey);
|
|
} else {
|
|
|
|
// reset if the key is gone
|
|
if (_fVisible) {
|
|
SendMessage(_hwnd, CB_RESETCONTENT, 0, 0L);
|
|
}
|
|
_fDropDownPopulated = FALSE;
|
|
_fListLoaded = FALSE;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
return SUPERCLASS::OnWinEvent(hwnd, uMsg, wParam, lParam, plres);
|
|
}
|